diff --git a/TestON/drivers/common/cli/.onosclidriver.py.swo b/TestON/drivers/common/cli/.onosclidriver.py.swo
deleted file mode 100644
index 87ea889..0000000
--- a/TestON/drivers/common/cli/.onosclidriver.py.swo
+++ /dev/null
Binary files differ
diff --git a/TestON/drivers/common/cli/emulator/lincoedriver.py b/TestON/drivers/common/cli/emulator/lincoedriver.py
index 8c5793f..a82cfa4 100644
--- a/TestON/drivers/common/cli/emulator/lincoedriver.py
+++ b/TestON/drivers/common/cli/emulator/lincoedriver.py
@@ -129,7 +129,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -155,7 +155,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -177,7 +177,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -199,7 +199,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -222,7 +222,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -244,7 +244,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -267,7 +267,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -290,7 +290,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
@@ -337,7 +337,7 @@
             main.exit()
         except:
             main.log.info( self.name + " :::::::" )
-            main.log.error( traceback.printExc() )
+            main.log.error( traceback.print_exc() )
             main.log.info( self.name + " :::::::" )
             main.cleanup()
             main.exit()
diff --git a/TestON/drivers/common/cli/onosdriver.py b/TestON/drivers/common/cli/onosdriver.py
index 1a7c7d5..a9a5a03 100644
--- a/TestON/drivers/common/cli/onosdriver.py
+++ b/TestON/drivers/common/cli/onosdriver.py
@@ -449,9 +449,6 @@
                 by Jenkins data collecter.
         """
         try:
-            self.handle.sendline( "export TERM=xterm-256color" )
-            self.handle.expect( "xterm-256color" )
-            self.handle.expect( "\$" )
             self.handle.sendline( "" )
             self.handle.expect( "\$" )
             self.handle.sendline(
diff --git a/TestON/drivers/common/clidriver.py b/TestON/drivers/common/clidriver.py
index 55ff522..6d7fb2a 100644
--- a/TestON/drivers/common/clidriver.py
+++ b/TestON/drivers/common/clidriver.py
@@ -64,8 +64,7 @@
                 self.user_name +
                 '@' +
                 self.ip_address,
-                env={
-                    "TERM": "vt100" },
+                env={ "TERM": "xterm-mono" },
                 maxread=50000 )
         else:
             self.handle = pexpect.spawn(
@@ -73,6 +72,7 @@
                 self.user_name +
                 '@' +
                 self.ip_address,
+                env={ "TERM": "xterm-mono" },
                 maxread=1000000,
                 timeout=60 )
 
diff --git a/TestON/lib/Mininet/INSTALL b/TestON/lib/Mininet/INSTALL
deleted file mode 100644
index d3e4695..0000000
--- a/TestON/lib/Mininet/INSTALL
+++ /dev/null
@@ -1,123 +0,0 @@
-
-Mininet Installation/Configuration Notes
-----------------------------------------
-
-Mininet 2.0.0
----
-
-The supported installation methods for Mininet are 1) using a
-pre-built VM image, and 2) native installation on Ubuntu. You can also
-easily create your own Mininet VM image (4).
-
-(Other distributions may be supported in the future - if you would
-like to contribute an installation script, we would welcome it!)
-
-1. Easiest "installation" - use our pre-built VM image!
-
-   The easiest way to get Mininet running is to start with one of our
-   pre-built virtual machine images from <http://openflow.org/mininet>
-
-   Boot up the VM image, log in, and follow the instructions on the
-   Mininet web site.
-
-   One advantage of using the VM image is that it doesn't mess with
-   your native OS installation or damage it in any way.
-
-   Although a single Mininet instance can simulate multiple networks
-   with multiple controllers, only one Mininet instance may currently
-   be run at a time, and Mininet requires root access in the machine
-   it's running on.  Therefore, if you have a multiuser system, you
-   may wish to consider running Mininet in a VM.
-
-2. Next-easiest option: use our Ubuntu package!
-
-   To install Mininet itself (i.e. `mn` and the Python API) on Ubuntu
-   12.10+:
-
-        sudo apt-get install mininet
-
-   Note: if you are upgrading from an older version of Mininet, make
-   sure you remove the old OVS from `/usr/local`:
-
-        sudo rm /usr/local/bin/ovs*
-        sudo rm /usr/local/sbin/ovs*
-
-3. Native installation from source on Ubuntu 11.10+
-
-   If you're reading this, you've probably already done so, but the
-   command to download the Mininet source code is:
-
-        git clone git://github.com/mininet/mininet.git
-
-   If you are running Ubuntu, you may be able to use our handy
-   `install.sh` script, which is in `mininet/util`.
-
-   *WARNING: USE AT YOUR OWN RISK!*
-
-   `install.sh` is a bit intrusive and may possibly damage your OS
-   and/or home directory, by creating/modifying several directories
-   such as `mininet`, `openflow`, `oftest`, `pox`, or `noxcosre`.
-   Although we hope it won't do anything completely terrible, you may
-   want to look at the script before you run it, and you should make
-   sure your system and home directory are backed up just in case!
-
-   To install Mininet itself, the OpenFlow reference implementation, and
-   Open vSwitch, you may use:
-
-        mininet/util/install.sh -fnv
-
-   This should be reasonably quick, and the following command should
-   work after the installation:
-
-        sudo mn --test pingall
-
-   To install ALL of the software which we use for OpenFlow tutorials,
-   including POX, the OpenFlow WireShark dissector, the `oftest`
-   framework, and other potentially useful software (and to add some
-   stuff to `/etc/sysctl.conf` which may or may not be useful) you may
-   use:
-
-        mininet/util/install.sh -a
-
-   This takes about 4 minutes on our test system.
-
-4. Creating your own Mininet/OpenFlow tutorial VM
-
-   Creating your own Ubuntu Mininet VM for use with the OpenFlow tutorial
-   is easy! First, create a new Ubuntu VM. Next, run two commands in it:
-
-        wget https://raw.github.com/mininet/mininet/master/util/vm/install-mininet-vm.sh
-        time install-mininet-vm.sh
-
-   Finally, verify that Mininet is installed and working in the VM:
-
-        sudo mn --test pingall
-
-5. Installation on other Linux distributions
-
-   Although we don't support other Linux distributions directly, it
-   should be possible to install and run Mininet with some degree of
-   manual effort.
-
-   In general, you must have:
-
-   * A Linux kernel compiled with network namespace support enabled
-
-   * An OpenFlow implementation (either the reference user or kernel
-     space implementations, or Open vSwitch.) Appropriate kernel
-     modules (e.g. tun and ofdatapath for the reference kernel
-     implementation) must be loaded.
-
-   * Python, `bash`, `ping`, `iperf`, etc.`
-
-   * Root privileges (required for network device access)
-
-   We encourage contribution of patches to the `install.sh` script to
-   support other Linux distributions.
-
-
-Good luck!
-
-Mininet Team
-
----
diff --git a/TestON/tests/HATestClusterRestart/HATestClusterRestart.params b/TestON/tests/HATestClusterRestart/HATestClusterRestart.params
index 38a9b02..7556184 100644
--- a/TestON/tests/HATestClusterRestart/HATestClusterRestart.params
+++ b/TestON/tests/HATestClusterRestart/HATestClusterRestart.params
@@ -56,6 +56,11 @@
         <LinkDiscovery>.2</LinkDiscovery>
         <SwitchDiscovery>.2</SwitchDiscovery>
     </timers>
+    <kill>
+        <switch> s5 </switch>
+        <dpid> 0000000000005000 </dpid>
+        <links> h5 s2 s1 s6 </links>
+    </kill>
     <MNtcpdump>
         <intf>eth0</intf>
         <port> </port>
diff --git a/TestON/tests/HATestClusterRestart/HATestClusterRestart.py b/TestON/tests/HATestClusterRestart/HATestClusterRestart.py
index b9a07b9..2b28907 100644
--- a/TestON/tests/HATestClusterRestart/HATestClusterRestart.py
+++ b/TestON/tests/HATestClusterRestart/HATestClusterRestart.py
@@ -1,4 +1,4 @@
-'''
+"""
 Description: This test is to determine if ONOS can handle
     all of it's nodes restarting
 
@@ -18,14 +18,16 @@
 CASE13: Clean up
 CASE14: start election app on all onos nodes
 CASE15: Check that Leadership Election is still functional
-'''
+"""
+
+
 class HATestClusterRestart:
 
-    def __init__(self) :
+    def __init__( self ):
         self.default = ''
 
-    def CASE1(self,main) :
-        '''
+    def CASE1( self, main ):
+        """
         CASE1 is to compile ONOS and push it to the test machines
 
         Startup sequence:
@@ -37,775 +39,851 @@
         NOTE: temporary - onos-remove-raft-logs
         onos-install -f
         onos-wait-for-start
-        '''
-        import time
-        main.log.report("ONOS HA test: Restart all ONOS nodes - initialization")
-        main.case("Setting up test environment")
+        """
+        main.log.report( "ONOS HA test: Restart all ONOS nodes - " +
+                         "initialization" )
+        main.case( "Setting up test environment" )
+        # TODO: save all the timers and output them for plotting
 
         # load some vairables from the params file
-        PULL_CODE = False
-        if main.params['Git'] == 'True':
-            PULL_CODE = True
-        cell_name = main.params['ENV']['cellName']
+        PULLCODE = False
+        if main.params[ 'Git' ] == 'True':
+            PULLCODE = True
 
-        #set global variables
-        global ONOS1_ip
-        global ONOS1_port
-        global ONOS2_ip
-        global ONOS2_port
-        global ONOS3_ip
-        global ONOS3_port
-        global ONOS4_ip
-        global ONOS4_port
-        global ONOS5_ip
-        global ONOS5_port
-        global ONOS6_ip
-        global ONOS6_port
-        global ONOS7_ip
-        global ONOS7_port
-        global num_controllers
+        cellName = main.params[ 'ENV' ][ 'cellName' ]
 
-        ONOS1_ip = main.params['CTRL']['ip1']
-        ONOS1_port = main.params['CTRL']['port1']
-        ONOS2_ip = main.params['CTRL']['ip2']
-        ONOS2_port = main.params['CTRL']['port2']
-        ONOS3_ip = main.params['CTRL']['ip3']
-        ONOS3_port = main.params['CTRL']['port3']
-        ONOS4_ip = main.params['CTRL']['ip4']
-        ONOS4_port = main.params['CTRL']['port4']
-        ONOS5_ip = main.params['CTRL']['ip5']
-        ONOS5_port = main.params['CTRL']['port5']
-        ONOS6_ip = main.params['CTRL']['ip6']
-        ONOS6_port = main.params['CTRL']['port6']
-        ONOS7_ip = main.params['CTRL']['ip7']
-        ONOS7_port = main.params['CTRL']['port7']
-        num_controllers = int(main.params['num_controllers'])
+        # set global variables
+        global ONOS1Ip
+        global ONOS1Port
+        global ONOS2Ip
+        global ONOS2Port
+        global ONOS3Ip
+        global ONOS3Port
+        global ONOS4Ip
+        global ONOS4Port
+        global ONOS5Ip
+        global ONOS5Port
+        global ONOS6Ip
+        global ONOS6Port
+        global ONOS7Ip
+        global ONOS7Port
+        global numControllers
 
+        ONOS1Ip = main.params[ 'CTRL' ][ 'ip1' ]
+        ONOS1Port = main.params[ 'CTRL' ][ 'port1' ]
+        ONOS2Ip = main.params[ 'CTRL' ][ 'ip2' ]
+        ONOS2Port = main.params[ 'CTRL' ][ 'port2' ]
+        ONOS3Ip = main.params[ 'CTRL' ][ 'ip3' ]
+        ONOS3Port = main.params[ 'CTRL' ][ 'port3' ]
+        ONOS4Ip = main.params[ 'CTRL' ][ 'ip4' ]
+        ONOS4Port = main.params[ 'CTRL' ][ 'port4' ]
+        ONOS5Ip = main.params[ 'CTRL' ][ 'ip5' ]
+        ONOS5Port = main.params[ 'CTRL' ][ 'port5' ]
+        ONOS6Ip = main.params[ 'CTRL' ][ 'ip6' ]
+        ONOS6Port = main.params[ 'CTRL' ][ 'port6' ]
+        ONOS7Ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS7Port = main.params[ 'CTRL' ][ 'port7' ]
+        numControllers = int( main.params[ 'num_controllers' ] )
 
-        main.step("Applying cell variable to environment")
-        cell_result = main.ONOSbench.set_cell(cell_name)
-        verify_result = main.ONOSbench.verify_cell()
+        main.step( "Applying cell variable to environment" )
+        cellResult = main.ONOSbench.setCell( cellName )
+        verifyResult = main.ONOSbench.verifyCell()
 
-        #FIXME:this is short term fix
-        main.log.report("Removing raft logs")
-        main.ONOSbench.onos_remove_raft_logs()
-        main.log.report("Uninstalling ONOS")
-        main.ONOSbench.onos_uninstall(ONOS1_ip)
-        main.ONOSbench.onos_uninstall(ONOS2_ip)
-        main.ONOSbench.onos_uninstall(ONOS3_ip)
-        main.ONOSbench.onos_uninstall(ONOS4_ip)
-        main.ONOSbench.onos_uninstall(ONOS5_ip)
-        main.ONOSbench.onos_uninstall(ONOS6_ip)
-        main.ONOSbench.onos_uninstall(ONOS7_ip)
+        # FIXME:this is short term fix
+        main.log.report( "Removing raft logs" )
+        main.ONOSbench.onosRemoveRaftLogs()
+        main.log.report( "Uninstalling ONOS" )
+        main.ONOSbench.onosUninstall( ONOS1Ip )
+        main.ONOSbench.onosUninstall( ONOS2Ip )
+        main.ONOSbench.onosUninstall( ONOS3Ip )
+        main.ONOSbench.onosUninstall( ONOS4Ip )
+        main.ONOSbench.onosUninstall( ONOS5Ip )
+        main.ONOSbench.onosUninstall( ONOS6Ip )
+        main.ONOSbench.onosUninstall( ONOS7Ip )
 
-        clean_install_result = main.TRUE
-        git_pull_result = main.TRUE
+        cleanInstallResult = main.TRUE
+        gitPullResult = main.TRUE
 
-        main.step("Compiling the latest version of ONOS")
-        if PULL_CODE:
-            main.step("Git checkout and pull master")
-            main.ONOSbench.git_checkout("master")
-            git_pull_result = main.ONOSbench.git_pull()
+        main.step( "Compiling the latest version of ONOS" )
+        if PULLCODE:
+            # TODO Configure branch in params
+            main.step( "Git checkout and pull master" )
+            main.ONOSbench.gitCheckout( "master" )
+            gitPullResult = main.ONOSbench.gitPull()
 
-            main.step("Using mvn clean & install")
-            clean_install_result = main.TRUE
-            if git_pull_result == main.TRUE:
-                clean_install_result = main.ONOSbench.clean_install()
-            else:
-                main.log.warn("Did not pull new code so skipping mvn "+ \
-                        "clean install")
-        main.ONOSbench.get_version(report=True)
+            main.step( "Using mvn clean & install" )
+            cleanInstallResult = main.TRUE
+        # In Sanity test, always re-compile ONOS
+        if gitPullResult == main.TRUE:
+            cleanInstallResult = main.ONOSbench.cleanInstall()
+        else:
+            main.log.warn( "Did not pull new code so skipping mvn " +
+                           "clean install" )
+        main.ONOSbench.getVersion( report=True )
 
-        main.step("Creating ONOS package")
-        package_result = main.ONOSbench.onos_package()
+        main.step( "Creating ONOS package" )
+        packageResult = main.ONOSbench.onosPackage()
 
-        main.step("Installing ONOS package")
-        onos1_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS1_ip)
-        onos2_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS2_ip)
-        onos3_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS3_ip)
-        onos4_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS4_ip)
-        onos5_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS5_ip)
-        onos6_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS6_ip)
-        onos7_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS7_ip)
-        onos_install_result = onos1_install_result and onos2_install_result\
-                and onos3_install_result and onos4_install_result\
-                and onos5_install_result and onos6_install_result\
-                and onos7_install_result
-        '''
-        #FIXME: work around until onos is less fragile
-        main.ONOSbench.handle.sendline("onos-cluster-install")
-        print main.ONOSbench.handle.expect("\$")
-        onos_install_result = main.TRUE
-        '''
+        main.step( "Installing ONOS package" )
+        onos1InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS1Ip )
+        onos2InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS2Ip )
+        onos3InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS3Ip )
+        onos4InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS4Ip )
+        onos5InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS5Ip )
+        onos6InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS6Ip )
+        onos7InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS7Ip )
+        onosInstallResult = onos1InstallResult and onos2InstallResult\
+            and onos3InstallResult and onos4InstallResult\
+            and onos5InstallResult and onos6InstallResult\
+            and onos7InstallResult
 
-
-        main.step("Checking if ONOS is up yet")
-        #TODO check bundle:list?
-        for i in range(2):
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            if not onos1_isup:
-                main.log.report("ONOS1 didn't start!")
-            onos2_isup = main.ONOSbench.isup(ONOS2_ip)
-            if not onos2_isup:
-                main.log.report("ONOS2 didn't start!")
-            onos3_isup = main.ONOSbench.isup(ONOS3_ip)
-            if not onos3_isup:
-                main.log.report("ONOS3 didn't start!")
-            onos4_isup = main.ONOSbench.isup(ONOS4_ip)
-            if not onos4_isup:
-                main.log.report("ONOS4 didn't start!")
-            onos5_isup = main.ONOSbench.isup(ONOS5_ip)
-            if not onos5_isup:
-                main.log.report("ONOS5 didn't start!")
-            onos6_isup = main.ONOSbench.isup(ONOS6_ip)
-            if not onos6_isup:
-                main.log.report("ONOS6 didn't start!")
-            onos7_isup = main.ONOSbench.isup(ONOS7_ip)
-            if not onos7_isup:
-                main.log.report("ONOS7 didn't start!")
-            onos_isup_result = onos1_isup and onos2_isup and onos3_isup\
-                    and onos4_isup and onos5_isup and onos6_isup and onos7_isup
-            if onos_isup_result == main.TRUE:
+        main.step( "Checking if ONOS is up yet" )
+        # TODO check bundle:list?
+        for i in range( 2 ):
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            if not onos1Isup:
+                main.log.report( "ONOS1 didn't start!" )
+            onos2Isup = main.ONOSbench.isup( ONOS2Ip )
+            if not onos2Isup:
+                main.log.report( "ONOS2 didn't start!" )
+            onos3Isup = main.ONOSbench.isup( ONOS3Ip )
+            if not onos3Isup:
+                main.log.report( "ONOS3 didn't start!" )
+            onos4Isup = main.ONOSbench.isup( ONOS4Ip )
+            if not onos4Isup:
+                main.log.report( "ONOS4 didn't start!" )
+            onos5Isup = main.ONOSbench.isup( ONOS5Ip )
+            if not onos5Isup:
+                main.log.report( "ONOS5 didn't start!" )
+            onos6Isup = main.ONOSbench.isup( ONOS6Ip )
+            if not onos6Isup:
+                main.log.report( "ONOS6 didn't start!" )
+            onos7Isup = main.ONOSbench.isup( ONOS7Ip )
+            if not onos7Isup:
+                main.log.report( "ONOS7 didn't start!" )
+            onosIsupResult = onos1Isup and onos2Isup and onos3Isup\
+                and onos4Isup and onos5Isup and onos6Isup and onos7Isup
+            if onosIsupResult == main.TRUE:
                 break
-        # TODO: if it becomes an issue, we can retry this step  a few times
 
+        cliResult1 = main.ONOScli1.startOnosCli( ONOS1Ip )
+        cliResult2 = main.ONOScli2.startOnosCli( ONOS2Ip )
+        cliResult3 = main.ONOScli3.startOnosCli( ONOS3Ip )
+        cliResult4 = main.ONOScli4.startOnosCli( ONOS4Ip )
+        cliResult5 = main.ONOScli5.startOnosCli( ONOS5Ip )
+        cliResult6 = main.ONOScli6.startOnosCli( ONOS6Ip )
+        cliResult7 = main.ONOScli7.startOnosCli( ONOS7Ip )
+        cliResults = cliResult1 and cliResult2 and cliResult3 and\
+            cliResult4 and cliResult5 and cliResult6 and cliResult7
 
-        cli_result1 = main.ONOScli1.start_onos_cli(ONOS1_ip)
-        cli_result2 = main.ONOScli2.start_onos_cli(ONOS2_ip)
-        cli_result3 = main.ONOScli3.start_onos_cli(ONOS3_ip)
-        cli_result4 = main.ONOScli4.start_onos_cli(ONOS4_ip)
-        cli_result5 = main.ONOScli5.start_onos_cli(ONOS5_ip)
-        cli_result6 = main.ONOScli6.start_onos_cli(ONOS6_ip)
-        cli_result7 = main.ONOScli7.start_onos_cli(ONOS7_ip)
-        cli_results = cli_result1 and cli_result2 and cli_result3 and\
-                cli_result4 and cli_result5 and cli_result6 and cli_result7
+        main.step( "Start Packet Capture MN" )
+        main.Mininet2.startTcpdump(
+            str( main.params[ 'MNtcpdump' ][ 'folder' ] ) + str( main.TEST )
+            + "-MN.pcap",
+            intf=main.params[ 'MNtcpdump' ][ 'intf' ],
+            port=main.params[ 'MNtcpdump' ][ 'port' ] )
 
-        main.step("Start Packet Capture MN")
-        main.Mininet2.start_tcpdump(
-                str(main.params['MNtcpdump']['folder'])+str(main.TEST)+"-MN.pcap",
-                intf = main.params['MNtcpdump']['intf'],
-                port = main.params['MNtcpdump']['port'])
+        case1Result = ( cleanInstallResult and packageResult and
+                        cellResult and verifyResult and onosInstallResult
+                        and onosIsupResult and cliResults )
 
+        utilities.assert_equals( expect=main.TRUE, actual=case1Result,
+                                onpass="Test startup successful",
+                                onfail="Test startup NOT successful" )
 
-        case1_result = (clean_install_result and package_result and
-                cell_result and verify_result and onos_install_result and
-                onos_isup_result and cli_results)
-
-        utilities.assert_equals(expect=main.TRUE, actual=case1_result,
-                onpass="Test startup successful",
-                onfail="Test startup NOT successful")
-
-
-        if case1_result==main.FALSE:
+        if case1Result == main.FALSE:
             main.cleanup()
             main.exit()
 
-    def CASE2(self,main) :
-        '''
+    def CASE2( self, main ):
+        """
         Assign mastership to controllers
-        '''
-        import time
-        import json
+        """
         import re
 
-        main.log.report("Assigning switches to controllers")
-        main.case("Assigning Controllers")
-        main.step("Assign switches to controllers")
+        main.log.report( "Assigning switches to controllers" )
+        main.case( "Assigning Controllers" )
+        main.step( "Assign switches to controllers" )
 
-        for i in range (1,29):
-           main.Mininet1.assign_sw_controller(sw=str(i),count=num_controllers,
-                    ip1=ONOS1_ip,port1=ONOS1_port,
-                    ip2=ONOS2_ip,port2=ONOS2_port,
-                    ip3=ONOS3_ip,port3=ONOS3_port,
-                    ip4=ONOS4_ip,port4=ONOS4_port,
-                    ip5=ONOS5_ip,port5=ONOS5_port,
-                    ip6=ONOS6_ip,port6=ONOS6_port,
-                    ip7=ONOS7_ip,port7=ONOS7_port)
+        for i in range( 1, 29 ):
+            main.Mininet1.assignSwController(
+                sw=str( i ),
+                count=numControllers,
+                ip1=ONOS1Ip, port1=ONOS1Port,
+                ip2=ONOS2Ip, port2=ONOS2Port,
+                ip3=ONOS3Ip, port3=ONOS3Port,
+                ip4=ONOS4Ip, port4=ONOS4Port,
+                ip5=ONOS5Ip, port5=ONOS5Port,
+                ip6=ONOS6Ip, port6=ONOS6Port,
+                ip7=ONOS7Ip, port7=ONOS7Port )
 
-        mastership_check = main.TRUE
-        for i in range (1,29):
-            response = main.Mininet1.get_sw_controller("s"+str(i))
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            response = main.Mininet1.getSwController( "s" + str( i ) )
             try:
-                main.log.info(str(response))
+                main.log.info( str( response ) )
             except:
-                main.log.info(repr(response))
-            if re.search("tcp:"+ONOS1_ip,response)\
-                    and re.search("tcp:"+ONOS2_ip,response)\
-                    and re.search("tcp:"+ONOS3_ip,response)\
-                    and re.search("tcp:"+ONOS4_ip,response)\
-                    and re.search("tcp:"+ONOS5_ip,response)\
-                    and re.search("tcp:"+ONOS6_ip,response)\
-                    and re.search("tcp:"+ONOS7_ip,response):
-                mastership_check = mastership_check and main.TRUE
+                main.log.info( repr( response ) )
+            if re.search( "tcp:" + ONOS1Ip, response )\
+                    and re.search( "tcp:" + ONOS2Ip, response )\
+                    and re.search( "tcp:" + ONOS3Ip, response )\
+                    and re.search( "tcp:" + ONOS4Ip, response )\
+                    and re.search( "tcp:" + ONOS5Ip, response )\
+                    and re.search( "tcp:" + ONOS6Ip, response )\
+                    and re.search( "tcp:" + ONOS7Ip, response ):
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Switch mastership assigned correctly")
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership assigned correctly",
-                onfail="Switches not assigned correctly to controllers")
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Switch mastership assigned correctly" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Switch mastership assigned correctly",
+            onfail="Switches not assigned correctly to controllers" )
 
-        #Manually assign mastership to the controller we want
-        role_call = main.TRUE
-        role_check = main.TRUE
+        # Manually assign mastership to the controller we want
+        roleCall = main.TRUE
+        roleCheck = main.TRUE
 
-        device_id = main.ONOScli1.get_device("1000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS1_ip)
-        if ONOS1_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "1000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS1Ip )
+        # Check assignment
+        if ONOS1Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("2800")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS1_ip)
-        if ONOS1_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "2800" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS1Ip )
+        # Check assignment
+        if ONOS1Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("2000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS2_ip)
-        if ONOS2_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "2000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS2Ip )
+        # Check assignment
+        if ONOS2Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS2_ip)
-        if ONOS2_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "3000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS2Ip )
+        # Check assignment
+        if ONOS2Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("5000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS3_ip)
-        if ONOS3_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "5000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS3Ip )
+        # Check assignment
+        if ONOS3Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("6000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS3_ip)
-        if ONOS3_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "6000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS3Ip )
+        # Check assignment
+        if ONOS3Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id =  main.ONOScli1.get_device("3004")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS4_ip)
-        if ONOS4_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "3004" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS4Ip )
+        # Check assignment
+        if ONOS4Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3008")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        for i in range( 8, 18 ):
+            dpid = '3' + str( i ).zfill( 3 )
+            deviceId = main.ONOScli1.getDevice( dpid ).get( 'id' )
+            roleCall = roleCall and main.ONOScli1.deviceRole(
+                deviceId,
+                ONOS5Ip )
+            # Check assignment
+            if ONOS5Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+                roleCheck = roleCheck and main.TRUE
+            else:
+                roleCheck = roleCheck and main.FALSE
+
+        deviceId = main.ONOScli1.getDevice( "6007" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS6Ip )
+        # Check assignment
+        if ONOS6Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3009")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        for i in range( 18, 28 ):
+            dpid = '6' + str( i ).zfill( 3 )
+            deviceId = main.ONOScli1.getDevice( dpid ).get( 'id' )
+            roleCall = roleCall and main.ONOScli1.deviceRole(
+                deviceId,
+                ONOS7Ip )
+            # Check assignment
+            if ONOS7Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+                roleCheck = roleCheck and main.TRUE
+            else:
+                roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3010")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=roleCall,
+            onpass="Re-assigned switch mastership to designated controller",
+            onfail="Something wrong with deviceRole calls" )
 
-        device_id = main.ONOScli1.get_device("3011")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=roleCheck,
+            onpass="Switches were successfully reassigned to designated " +
+                   "controller",
+            onfail="Switches were not successfully reassigned" )
+        mastershipCheck = mastershipCheck and roleCall and roleCheck
+        utilities.assert_equals( expect=main.TRUE, actual=mastershipCheck,
+                                onpass="Switch mastership correctly assigned",
+                                onfail="Error in ( re )assigning switch" +
+                                " mastership" )
 
-        device_id = main.ONOScli1.get_device("3012")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3013")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3014")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3015")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3016")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3017")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6007")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS6_ip)
-        if ONOS6_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6018")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6019")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6020")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6021")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6022")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6023")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6024")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6025")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6026")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6027")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        utilities.assert_equals(expect = main.TRUE,actual=role_call,
-                onpass="Re-assigned switch mastership to designated controller",
-                onfail="Something wrong with device_role calls")
-
-        utilities.assert_equals(expect = main.TRUE,actual=role_check,
-                onpass="Switches were successfully reassigned to designated controller",
-                onfail="Switches were not successfully reassigned")
-        mastership_check = mastership_check and role_call and role_check
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-
-
-    def CASE3(self,main) :
+    def CASE3( self, main ):
         """
         Assign intents
 
         """
-        #FIXME: we must reinstall intents until we have a persistant datastore!
+        # FIXME: we must reinstall intents until we have a persistant
+        # datastore!
         import time
-        import json
-        import re
-        main.log.report("Adding host intents")
-        main.case("Adding host Intents")
+        main.log.report( "Adding host intents" )
+        main.case( "Adding host Intents" )
 
-        main.step("Discovering  Hosts( Via pingall for now)")
-        #FIXME: Once we have a host discovery mechanism, use that instead
+        main.step( "Discovering  Hosts( Via pingall for now )" )
+        # FIXME: Once we have a host discovery mechanism, use that instead
 
-        #install onos-app-fwd
-        main.log.info("Install reactive forwarding app")
-        main.ONOScli1.feature_install("onos-app-fwd")
-        main.ONOScli2.feature_install("onos-app-fwd")
-        main.ONOScli3.feature_install("onos-app-fwd")
-        main.ONOScli4.feature_install("onos-app-fwd")
-        main.ONOScli5.feature_install("onos-app-fwd")
-        main.ONOScli6.feature_install("onos-app-fwd")
-        main.ONOScli7.feature_install("onos-app-fwd")
+        # install onos-app-fwd
+        main.log.info( "Install reactive forwarding app" )
+        main.ONOScli1.featureInstall( "onos-app-fwd" )
+        main.ONOScli2.featureInstall( "onos-app-fwd" )
+        main.ONOScli3.featureInstall( "onos-app-fwd" )
+        main.ONOScli4.featureInstall( "onos-app-fwd" )
+        main.ONOScli5.featureInstall( "onos-app-fwd" )
+        main.ONOScli6.featureInstall( "onos-app-fwd" )
+        main.ONOScli7.featureInstall( "onos-app-fwd" )
 
-        #REACTIVE FWD test
-        ping_result = main.FALSE
+        # REACTIVE FWD test
+        pingResult = main.FALSE
         time1 = time.time()
-        ping_result = main.Mininet1.pingall()
+        pingResult = main.Mininet1.pingall()
         time2 = time.time()
-        main.log.info("Time for pingall: %2f seconds" % (time2 - time1))
+        main.log.info( "Time for pingall: %2f seconds" % ( time2 - time1 ) )
 
-        #uninstall onos-app-fwd
-        main.log.info("Uninstall reactive forwarding app")
-        main.ONOScli1.feature_uninstall("onos-app-fwd")
-        main.ONOScli2.feature_uninstall("onos-app-fwd")
-        main.ONOScli3.feature_uninstall("onos-app-fwd")
-        main.ONOScli4.feature_uninstall("onos-app-fwd")
-        main.ONOScli5.feature_uninstall("onos-app-fwd")
-        main.ONOScli6.feature_uninstall("onos-app-fwd")
-        main.ONOScli7.feature_uninstall("onos-app-fwd")
-        #timeout for fwd flows
-        time.sleep(10)
+        # uninstall onos-app-fwd
+        main.log.info( "Uninstall reactive forwarding app" )
+        main.ONOScli1.featureUninstall( "onos-app-fwd" )
+        main.ONOScli2.featureUninstall( "onos-app-fwd" )
+        main.ONOScli3.featureUninstall( "onos-app-fwd" )
+        main.ONOScli4.featureUninstall( "onos-app-fwd" )
+        main.ONOScli5.featureUninstall( "onos-app-fwd" )
+        main.ONOScli6.featureUninstall( "onos-app-fwd" )
+        main.ONOScli7.featureUninstall( "onos-app-fwd" )
+        # timeout for fwd flows
+        time.sleep( 10 )
 
-        main.step("Add  host intents")
-        #TODO:  move the host numbers to params
-        import json
-        intents_json= json.loads(main.ONOScli1.hosts())
-        intent_add_result = True
-        for i in range(8,18):
-            main.log.info("Adding host intent between h"+str(i)+" and h"+str(i+10))
-            host1 =  "00:00:00:00:00:" + str(hex(i)[2:]).zfill(2).upper()
-            host2 =  "00:00:00:00:00:" + str(hex(i+10)[2:]).zfill(2).upper()
-            host1_id = main.ONOScli1.get_host(host1)['id']
-            host2_id = main.ONOScli1.get_host(host2)['id']
-            #NOTE: get host can return None
-            if host1_id and host2_id:
-                tmp_result = main.ONOScli1.add_host_intent(host1_id, host2_id )
+        main.step( "Add  host intents" )
+        # TODO:  move the host numbers to params
+        intentAddResult = True
+        for i in range( 8, 18 ):
+            main.log.info( "Adding host intent between h" + str( i ) +
+                           " and h" + str( i + 10 ) )
+            host1 = "00:00:00:00:00:" + \
+                str( hex( i )[ 2: ] ).zfill( 2 ).upper()
+            host2 = "00:00:00:00:00:" + \
+                str( hex( i + 10 )[ 2: ] ).zfill( 2 ).upper()
+            host1Id = main.ONOScli1.getHost( host1 )[ 'id' ]
+            host2Id = main.ONOScli1.getHost( host2 )[ 'id' ]
+            # NOTE: get host can return None
+            if host1Id and host2Id:
+                tmpResult = main.ONOScli1.addHostIntent(
+                    host1Id,
+                    host2Id )
             else:
-                main.log.error("Error, get_host() failed")
-                tmp_result = main.FALSE
-            intent_add_result = bool(intent_add_result and tmp_result)
-        utilities.assert_equals(expect=True, actual=intent_add_result,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-        #TODO Check if intents all exist in datastore
-        #NOTE: Do we need to print this once the test is working?
-        #main.log.info(json.dumps(json.loads(main.ONOScli1.intents(json_format=True)),
-        #    sort_keys=True, indent=4, separators=(',', ': ') ) )
+                main.log.error( "Error, getHost() failed" )
+                tmpResult = main.FALSE
+            intentAddResult = bool( pingResult and intentAddResult
+                                     and tmpResult )
+        utilities.assert_equals(
+            expect=True,
+            actual=intentAddResult,
+            onpass="Switch mastership correctly assigned",
+            onfail="Error in ( re )assigning switch mastership" )
+        # TODO Check if intents all exist in datastore
 
-    def CASE4(self,main) :
+    def CASE4( self, main ):
         """
         Ping across added host intents
         """
         description = " Ping across added host intents"
-        main.log.report(description)
-        main.case(description)
-        Ping_Result = main.TRUE
-        for i in range(8,18):
-            ping = main.Mininet1.pingHost(src="h"+str(i),target="h"+str(i+10))
-            Ping_Result = Ping_Result and ping
-            if ping==main.FALSE:
-                main.log.warn("Ping failed between h"+str(i)+" and h" + str(i+10))
-            elif ping==main.TRUE:
-                main.log.info("Ping test passed!")
-                Ping_Result = main.TRUE
-        if Ping_Result==main.FALSE:
-            main.log.report("Intents have not been installed correctly, pings failed.")
-        if Ping_Result==main.TRUE:
-            main.log.report("Intents have been installed correctly and verified by pings")
-        utilities.assert_equals(expect = main.TRUE,actual=Ping_Result,
-                onpass="Intents have been installed correctly and pings work",
-                onfail ="Intents have not been installed correctly, pings failed." )
+        main.log.report( description )
+        main.case( description )
+        PingResult = main.TRUE
+        for i in range( 8, 18 ):
+            ping = main.Mininet1.pingHost(
+                src="h" + str( i ), target="h" + str( i + 10 ) )
+            PingResult = PingResult and ping
+            if ping == main.FALSE:
+                main.log.warn( "Ping failed between h" + str( i ) +
+                               " and h" + str( i + 10 ) )
+            elif ping == main.TRUE:
+                main.log.info( "Ping test passed!" )
+                PingResult = main.TRUE
+        if PingResult == main.FALSE:
+            main.log.report(
+                "Intents have not been installed correctly, pings failed." )
+        if PingResult == main.TRUE:
+            main.log.report(
+                "Intents have been installed correctly and verified by pings" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=PingResult,
+            onpass="Intents have been installed correctly and pings work",
+            onfail="Intents have not been installed correctly, pings failed." )
 
-    def CASE5(self,main) :
-        '''
+    def CASE5( self, main ):
+        """
         Reading state of ONOS
-        '''
-        import time
+        """
         import json
-        from subprocess import Popen, PIPE
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
 
-        main.log.report("Setting up and gathering data for current state")
-        main.case("Setting up and gathering data for current state")
-        #The general idea for this test case is to pull the state of (intents,flows, topology,...) from each ONOS node
-        #We can then compare them with eachother and also with past states
+        main.log.report( "Setting up and gathering data for current state" )
+        main.case( "Setting up and gathering data for current state" )
+        # The general idea for this test case is to pull the state of
+        # ( intents,flows, topology,... ) from each ONOS node
+        # We can then compare them with eachother and also with past states
 
-        main.step("Get the Mastership of each switch from each controller")
-        global mastership_state
-        mastership_state = []
+        main.step( "Get the Mastership of each switch from each controller" )
+        global mastershipState
+        mastershipState = []
 
-        #Assert that each device has a master
-        ONOS1_master_not_null = main.ONOScli1.roles_not_null()
-        ONOS2_master_not_null = main.ONOScli2.roles_not_null()
-        ONOS3_master_not_null = main.ONOScli3.roles_not_null()
-        ONOS4_master_not_null = main.ONOScli4.roles_not_null()
-        ONOS5_master_not_null = main.ONOScli5.roles_not_null()
-        ONOS6_master_not_null = main.ONOScli6.roles_not_null()
-        ONOS7_master_not_null = main.ONOScli7.roles_not_null()
-        roles_not_null = ONOS1_master_not_null and ONOS2_master_not_null and\
-                ONOS3_master_not_null and ONOS4_master_not_null and\
-                ONOS5_master_not_null and ONOS6_master_not_null and\
-                ONOS7_master_not_null
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        ONOS1MasterNotNull = main.ONOScli1.rolesNotNull()
+        ONOS2MasterNotNull = main.ONOScli2.rolesNotNull()
+        ONOS3MasterNotNull = main.ONOScli3.rolesNotNull()
+        ONOS4MasterNotNull = main.ONOScli4.rolesNotNull()
+        ONOS5MasterNotNull = main.ONOScli5.rolesNotNull()
+        ONOS6MasterNotNull = main.ONOScli6.rolesNotNull()
+        ONOS7MasterNotNull = main.ONOScli7.rolesNotNull()
+        rolesNotNull = ONOS1MasterNotNull and ONOS2MasterNotNull and\
+            ONOS3MasterNotNull and ONOS4MasterNotNull and\
+            ONOS5MasterNotNull and ONOS6MasterNotNull and\
+            ONOS7MasterNotNull
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-        ONOS1_mastership = main.ONOScli1.roles()
-        ONOS2_mastership = main.ONOScli2.roles()
-        ONOS3_mastership = main.ONOScli3.roles()
-        ONOS4_mastership = main.ONOScli4.roles()
-        ONOS5_mastership = main.ONOScli5.roles()
-        ONOS6_mastership = main.ONOScli6.roles()
-        ONOS7_mastership = main.ONOScli7.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership\
-                or "Error" in ONOS2_mastership or not ONOS2_mastership\
-                or "Error" in ONOS3_mastership or not ONOS3_mastership\
-                or "Error" in ONOS4_mastership or not ONOS4_mastership\
-                or "Error" in ONOS5_mastership or not ONOS5_mastership\
-                or "Error" in ONOS6_mastership or not ONOS6_mastership\
-                or "Error" in ONOS7_mastership or not ONOS7_mastership:
-                    main.log.report("Error in getting ONOS roles")
-                    main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-                    main.log.warn("ONOS2 mastership response: " + repr(ONOS2_mastership))
-                    main.log.warn("ONOS3 mastership response: " + repr(ONOS3_mastership))
-                    main.log.warn("ONOS4 mastership response: " + repr(ONOS4_mastership))
-                    main.log.warn("ONOS5 mastership response: " + repr(ONOS5_mastership))
-                    main.log.warn("ONOS6 mastership response: " + repr(ONOS6_mastership))
-                    main.log.warn("ONOS7 mastership response: " + repr(ONOS7_mastership))
-                    consistent_mastership = main.FALSE
-        elif ONOS1_mastership == ONOS2_mastership\
-                and ONOS1_mastership == ONOS3_mastership\
-                and ONOS1_mastership == ONOS4_mastership\
-                and ONOS1_mastership == ONOS5_mastership\
-                and ONOS1_mastership == ONOS6_mastership\
-                and ONOS1_mastership == ONOS7_mastership:
-                    mastership_state = ONOS1_mastership
-                    consistent_mastership = main.TRUE
-                    main.log.report("Switch roles are consistent across all ONOS nodes")
+        ONOS1Mastership = main.ONOScli1.roles()
+        ONOS2Mastership = main.ONOScli2.roles()
+        ONOS3Mastership = main.ONOScli3.roles()
+        ONOS4Mastership = main.ONOScli4.roles()
+        ONOS5Mastership = main.ONOScli5.roles()
+        ONOS6Mastership = main.ONOScli6.roles()
+        ONOS7Mastership = main.ONOScli7.roles()
+        if "Error" in ONOS1Mastership or not ONOS1Mastership\
+                or "Error" in ONOS2Mastership or not ONOS2Mastership\
+                or "Error" in ONOS3Mastership or not ONOS3Mastership\
+                or "Error" in ONOS4Mastership or not ONOS4Mastership\
+                or "Error" in ONOS5Mastership or not ONOS5Mastership\
+                or "Error" in ONOS6Mastership or not ONOS6Mastership\
+                or "Error" in ONOS7Mastership or not ONOS7Mastership:
+            main.log.report( "Error in getting ONOS roles" )
+            main.log.warn(
+                "ONOS1 mastership response: " +
+                repr( ONOS1Mastership ) )
+            main.log.warn(
+                "ONOS2 mastership response: " +
+                repr( ONOS2Mastership ) )
+            main.log.warn(
+                "ONOS3 mastership response: " +
+                repr( ONOS3Mastership ) )
+            main.log.warn(
+                "ONOS4 mastership response: " +
+                repr( ONOS4Mastership ) )
+            main.log.warn(
+                "ONOS5 mastership response: " +
+                repr( ONOS5Mastership ) )
+            main.log.warn(
+                "ONOS6 mastership response: " +
+                repr( ONOS6Mastership ) )
+            main.log.warn(
+                "ONOS7 mastership response: " +
+                repr( ONOS7Mastership ) )
+            consistentMastership = main.FALSE
+        elif ONOS1Mastership == ONOS2Mastership\
+                and ONOS1Mastership == ONOS3Mastership\
+                and ONOS1Mastership == ONOS4Mastership\
+                and ONOS1Mastership == ONOS5Mastership\
+                and ONOS1Mastership == ONOS6Mastership\
+                and ONOS1Mastership == ONOS7Mastership:
+            mastershipState = ONOS1Mastership
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 roles: ", json.dumps(json.loads(ONOS1_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 roles: ", json.dumps(json.loads(ONOS2_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 roles: ", json.dumps(json.loads(ONOS3_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 roles: ", json.dumps(json.loads(ONOS4_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 roles: ", json.dumps(json.loads(ONOS5_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 roles: ", json.dumps(json.loads(ONOS6_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 roles: ", json.dumps(json.loads(ONOS7_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            consistent_mastership = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
+            main.log.warn(
+                "ONOS1 roles: ",
+                json.dumps(
+                    json.loads( ONOS1Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS2 roles: ",
+                json.dumps(
+                    json.loads( ONOS2Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS3 roles: ",
+                json.dumps(
+                    json.loads( ONOS3Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS4 roles: ",
+                json.dumps(
+                    json.loads( ONOS4Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS5 roles: ",
+                json.dumps(
+                    json.loads( ONOS5Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS6 roles: ",
+                json.dumps(
+                    json.loads( ONOS6Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS7 roles: ",
+                json.dumps(
+                    json.loads( ONOS7Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            consistentMastership = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
-
-        main.step("Get the intents from each controller")
-        global intent_state
-        intent_state = []
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        ONOS2_intents = main.ONOScli2.intents( json_format=True )
-        ONOS3_intents = main.ONOScli3.intents( json_format=True )
-        ONOS4_intents = main.ONOScli4.intents( json_format=True )
-        ONOS5_intents = main.ONOScli5.intents( json_format=True )
-        ONOS6_intents = main.ONOScli6.intents( json_format=True )
-        ONOS7_intents = main.ONOScli7.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents\
-                or "Error" in ONOS2_intents or not ONOS2_intents\
-                or "Error" in ONOS3_intents or not ONOS3_intents\
-                or "Error" in ONOS4_intents or not ONOS4_intents\
-                or "Error" in ONOS5_intents or not ONOS5_intents\
-                or "Error" in ONOS6_intents or not ONOS6_intents\
-                or "Error" in ONOS7_intents or not ONOS7_intents:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
-                    main.log.warn("ONOS2 intents response: " + repr(ONOS2_intents))
-                    main.log.warn("ONOS3 intents response: " + repr(ONOS3_intents))
-                    main.log.warn("ONOS4 intents response: " + repr(ONOS4_intents))
-                    main.log.warn("ONOS5 intents response: " + repr(ONOS5_intents))
-                    main.log.warn("ONOS6 intents response: " + repr(ONOS6_intents))
-                    main.log.warn("ONOS7 intents response: " + repr(ONOS7_intents))
-        elif ONOS1_intents == ONOS2_intents\
-                and ONOS1_intents == ONOS3_intents\
-                and ONOS1_intents == ONOS4_intents\
-                and ONOS1_intents == ONOS5_intents\
-                and ONOS1_intents == ONOS6_intents\
-                and ONOS1_intents == ONOS7_intents:
-                    intent_state = ONOS1_intents
-                    intent_check = main.TRUE
-                    main.log.report("Intents are consistent across all ONOS nodes")
+        main.step( "Get the intents from each controller" )
+        global intentState
+        intentState = []
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        ONOS2Intents = main.ONOScli2.intents( jsonFormat=True )
+        ONOS3Intents = main.ONOScli3.intents( jsonFormat=True )
+        ONOS4Intents = main.ONOScli4.intents( jsonFormat=True )
+        ONOS5Intents = main.ONOScli5.intents( jsonFormat=True )
+        ONOS6Intents = main.ONOScli6.intents( jsonFormat=True )
+        ONOS7Intents = main.ONOScli7.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents\
+                or "Error" in ONOS2Intents or not ONOS2Intents\
+                or "Error" in ONOS3Intents or not ONOS3Intents\
+                or "Error" in ONOS4Intents or not ONOS4Intents\
+                or "Error" in ONOS5Intents or not ONOS5Intents\
+                or "Error" in ONOS6Intents or not ONOS6Intents\
+                or "Error" in ONOS7Intents or not ONOS7Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
+            main.log.warn( "ONOS2 intents response: " + repr( ONOS2Intents ) )
+            main.log.warn( "ONOS3 intents response: " + repr( ONOS3Intents ) )
+            main.log.warn( "ONOS4 intents response: " + repr( ONOS4Intents ) )
+            main.log.warn( "ONOS5 intents response: " + repr( ONOS5Intents ) )
+            main.log.warn( "ONOS6 intents response: " + repr( ONOS6Intents ) )
+            main.log.warn( "ONOS7 intents response: " + repr( ONOS7Intents ) )
+        elif ONOS1Intents == ONOS2Intents\
+                and ONOS1Intents == ONOS3Intents\
+                and ONOS1Intents == ONOS4Intents\
+                and ONOS1Intents == ONOS5Intents\
+                and ONOS1Intents == ONOS6Intents\
+                and ONOS1Intents == ONOS7Intents:
+            intentState = ONOS1Intents
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 intents: ", json.dumps(json.loads(ONOS1_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 intents: ", json.dumps(json.loads(ONOS2_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 intents: ", json.dumps(json.loads(ONOS3_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 intents: ", json.dumps(json.loads(ONOS4_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 intents: ", json.dumps(json.loads(ONOS5_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 intents: ", json.dumps(json.loads(ONOS6_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 intents: ", json.dumps(json.loads(ONOS7_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            main.log.warn(
+                "ONOS1 intents: ",
+                json.dumps(
+                    json.loads( ONOS1Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS2 intents: ",
+                json.dumps(
+                    json.loads( ONOS2Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS3 intents: ",
+                json.dumps(
+                    json.loads( ONOS3Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS4 intents: ",
+                json.dumps(
+                    json.loads( ONOS4Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS5 intents: ",
+                json.dumps(
+                    json.loads( ONOS5Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS6 intents: ",
+                json.dumps(
+                    json.loads( ONOS6Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS7 intents: ",
+                json.dumps(
+                    json.loads( ONOS7Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-
-        main.step("Get the flows from each controller")
-        global flow_state
-        flow_state = []
-        ONOS1_flows = main.ONOScli1.flows( json_format=True )
-        ONOS2_flows = main.ONOScli2.flows( json_format=True )
-        ONOS3_flows = main.ONOScli3.flows( json_format=True )
-        ONOS4_flows = main.ONOScli4.flows( json_format=True )
-        ONOS5_flows = main.ONOScli5.flows( json_format=True )
-        ONOS6_flows = main.ONOScli6.flows( json_format=True )
-        ONOS7_flows = main.ONOScli7.flows( json_format=True )
-        flow_check = main.FALSE
-        if "Error" in ONOS1_flows or not ONOS1_flows\
-                or "Error" in ONOS2_flows or not ONOS2_flows\
-                or "Error" in ONOS3_flows or not ONOS3_flows\
-                or "Error" in ONOS4_flows or not ONOS4_flows\
-                or "Error" in ONOS5_flows or not ONOS5_flows\
-                or "Error" in ONOS6_flows or not ONOS6_flows\
-                or "Error" in ONOS7_flows or not ONOS7_flows:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 flows repsponse: "+ ONOS1_flows)
-                    main.log.warn("ONOS2 flows repsponse: "+ ONOS2_flows)
-                    main.log.warn("ONOS3 flows repsponse: "+ ONOS3_flows)
-                    main.log.warn("ONOS4 flows repsponse: "+ ONOS4_flows)
-                    main.log.warn("ONOS5 flows repsponse: "+ ONOS5_flows)
-                    main.log.warn("ONOS6 flows repsponse: "+ ONOS6_flows)
-                    main.log.warn("ONOS7 flows repsponse: "+ ONOS7_flows)
-        elif len(json.loads(ONOS1_flows)) == len(json.loads(ONOS2_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS3_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS4_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS5_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS6_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS7_flows)):
-                #TODO: Do a better check, maybe compare flows on switches?
-                    flow_state = ONOS1_flows
-                    flow_check = main.TRUE
-                    main.log.report("Flow count is consistent across all ONOS nodes")
+        main.step( "Get the flows from each controller" )
+        global flowState
+        flowState = []
+        ONOS1Flows = main.ONOScli1.flows( jsonFormat=True )
+        ONOS2Flows = main.ONOScli2.flows( jsonFormat=True )
+        ONOS3Flows = main.ONOScli3.flows( jsonFormat=True )
+        ONOS4Flows = main.ONOScli4.flows( jsonFormat=True )
+        ONOS5Flows = main.ONOScli5.flows( jsonFormat=True )
+        ONOS6Flows = main.ONOScli6.flows( jsonFormat=True )
+        ONOS7Flows = main.ONOScli7.flows( jsonFormat=True )
+        ONOS1FlowsJson = json.loads( ONOS1Flows )
+        ONOS2FlowsJson = json.loads( ONOS2Flows )
+        ONOS3FlowsJson = json.loads( ONOS3Flows )
+        ONOS4FlowsJson = json.loads( ONOS4Flows )
+        ONOS5FlowsJson = json.loads( ONOS5Flows )
+        ONOS6FlowsJson = json.loads( ONOS6Flows )
+        ONOS7FlowsJson = json.loads( ONOS7Flows )
+        flowCheck = main.FALSE
+        if "Error" in ONOS1Flows or not ONOS1Flows\
+                or "Error" in ONOS2Flows or not ONOS2Flows\
+                or "Error" in ONOS3Flows or not ONOS3Flows\
+                or "Error" in ONOS4Flows or not ONOS4Flows\
+                or "Error" in ONOS5Flows or not ONOS5Flows\
+                or "Error" in ONOS6Flows or not ONOS6Flows\
+                or "Error" in ONOS7Flows or not ONOS7Flows:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 flows repsponse: " + ONOS1Flows )
+            main.log.warn( "ONOS2 flows repsponse: " + ONOS2Flows )
+            main.log.warn( "ONOS3 flows repsponse: " + ONOS3Flows )
+            main.log.warn( "ONOS4 flows repsponse: " + ONOS4Flows )
+            main.log.warn( "ONOS5 flows repsponse: " + ONOS5Flows )
+            main.log.warn( "ONOS6 flows repsponse: " + ONOS6Flows )
+            main.log.warn( "ONOS7 flows repsponse: " + ONOS7Flows )
+        elif len( ONOS1FlowsJson ) == len( ONOS2FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS3FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS4FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS5FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS6FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS7FlowsJson ):
+                # TODO: Do a better check, maybe compare flows on switches?
+            flowState = ONOS1Flows
+            flowCheck = main.TRUE
+            main.log.report( "Flow count is consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 flows: "+ json.dumps(json.loads(ONOS1_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 flows: "+ json.dumps(json.loads(ONOS2_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 flows: "+ json.dumps(json.loads(ONOS3_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 flows: "+ json.dumps(json.loads(ONOS4_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 flows: "+ json.dumps(json.loads(ONOS5_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 flows: "+ json.dumps(json.loads(ONOS6_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 flows: "+ json.dumps(json.loads(ONOS7_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-        utilities.assert_equals(expect = main.TRUE,actual=flow_check,
-                onpass="The flow count is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different flow counts")
+            main.log.warn( "ONOS1 flows: " +
+                           json.dumps( ONOS1FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS2 flows: " +
+                           json.dumps( ONOS2FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS3 flows: " +
+                           json.dumps( ONOS3FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS4 flows: " +
+                           json.dumps( ONOS4FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS5 flows: " +
+                           json.dumps( ONOS5FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS6 flows: " +
+                           json.dumps( ONOS6FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS7 flows: " +
+                           json.dumps( ONOS7FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=flowCheck,
+            onpass="The flow count is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different flow counts" )
 
-
-        main.step("Get the OF Table entries")
+        main.step( "Get the OF Table entries" )
         global flows
-        flows=[]
-        for i in range(1,29):
-            flows.append(main.Mininet2.get_flowTable(1.3, "s"+str(i)))
+        flows = []
+        for i in range( 1, 29 ):
+            flows.append( main.Mininet2.getFlowTable( 1.3, "s" + str( i ) ) )
 
-        #TODO: Compare switch flow tables with ONOS flow tables
+        # TODO: Compare switch flow tables with ONOS flow tables
 
-        main.step("Start continuous pings")
-        main.Mininet2.pingLong(src=main.params['PING']['source1'],
-                            target=main.params['PING']['target1'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source2'],
-                            target=main.params['PING']['target2'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source3'],
-                            target=main.params['PING']['target3'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source4'],
-                            target=main.params['PING']['target4'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source5'],
-                            target=main.params['PING']['target5'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source6'],
-                            target=main.params['PING']['target6'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source7'],
-                            target=main.params['PING']['target7'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source8'],
-                            target=main.params['PING']['target8'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source9'],
-                            target=main.params['PING']['target9'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source10'],
-                            target=main.params['PING']['target10'],pingTime=500)
+        main.step( "Start continuous pings" )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source1' ],
+            target=main.params[ 'PING' ][ 'target1' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source2' ],
+            target=main.params[ 'PING' ][ 'target2' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source3' ],
+            target=main.params[ 'PING' ][ 'target3' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source4' ],
+            target=main.params[ 'PING' ][ 'target4' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source5' ],
+            target=main.params[ 'PING' ][ 'target5' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source6' ],
+            target=main.params[ 'PING' ][ 'target6' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source7' ],
+            target=main.params[ 'PING' ][ 'target7' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source8' ],
+            target=main.params[ 'PING' ][ 'target8' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source9' ],
+            target=main.params[ 'PING' ][ 'target9' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source10' ],
+            target=main.params[ 'PING' ][ 'target10' ],
+            pingTime=500 )
 
-        main.step("Create TestONTopology object")
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         while True:
             temp = ()
-            if ('ip' + str(count)) in main.params['CTRL']:
-                temp = temp + (getattr(main,('ONOS' + str(count))),)
-                temp = temp + ("ONOS"+str(count),)
-                temp = temp + (main.params['CTRL']['ip'+str(count)],)
-                temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-                ctrls.append(temp)
+            if ( 'ip' + str( count ) ) in main.params[ 'CTRL' ]:
+                temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+                temp = temp + ( "ONOS" + str( count ), )
+                temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+                temp = temp + \
+                    ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+                ctrls.append( temp )
                 count = count + 1
             else:
                 break
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Collecting topology information from ONOS")
+        main.step( "Collecting topology information from ONOS" )
         devices = []
         devices.append( main.ONOScli1.devices() )
         devices.append( main.ONOScli2.devices() )
@@ -847,487 +925,581 @@
         clusters.append( main.ONOScli6.clusters() )
         clusters.append( main.ONOScli7.clusters() )
         paths = []
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli1.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli2.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli3.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli4.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli5.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli6.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli7.topology() )
-        paths.append( temp_topo.get('paths', False) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli1.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli2.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli3.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli4.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli5.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli6.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli7.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
 
-        #Compare json objects for hosts, dataplane clusters and paths
+        # Compare json objects for hosts, dataplane clusters and paths
 
-        #hosts
-        consistent_hosts_result = main.TRUE
+        # hosts
+        consistentHostsResult = main.TRUE
         for controller in range( len( hosts ) ):
-            if not "Error" in hosts[controller]:
-                if hosts[controller] == hosts[0]:
+            controllerStr = str( controller + 1 )
+            if "Error" not in hosts[ controller ]:
+                if hosts[ controller ] == hosts[ 0 ]:
                     continue
-                else:#hosts not consistent
-                    main.log.report("hosts from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    main.log.warn( repr( hosts[controller] ) )
-                    consistent_hosts_result = main.FALSE
+                else:  # hosts not consistent
+                    main.log.report( "hosts from ONOS" +
+                                     controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    main.log.warn( repr( hosts[ controller ] ) )
+                    consistentHostsResult = main.FALSE
 
             else:
-                main.log.report("Error in getting ONOS hosts from ONOS" + str(controller + 1) )
-                consistent_hosts_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " hosts response: " + repr(hosts[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_hosts_result,
-                onpass="Hosts view is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of hosts")
+                main.log.report( "Error in getting ONOS hosts from ONOS" +
+                                 controllerStr )
+                consistentHostsResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr +
+                               " hosts response: " +
+                               repr( hosts[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentHostsResult,
+            onpass="Hosts view is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of hosts" )
 
-        #Strongly connected clusters of devices
-        consistent_clusters_result = main.TRUE
+        # Strongly connected clusters of devices
+        consistentClustersResult = main.TRUE
         for controller in range( len( clusters ) ):
-            if not "Error" in clusters[controller]:
-                if clusters[controller] == clusters[0]:
+            if "Error" not in clusters[ controller ]:
+                if clusters[ controller ] == clusters[ 0 ]:
                     continue
-                else:#clusters not consistent
-                    main.log.report("clusters from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    consistent_clusters_result = main.FALSE
+                else:  # clusters not consistent
+                    main.log.report( "clusters from ONOS" +
+                                     controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    consistentClustersResult = main.FALSE
 
             else:
-                main.log.report("Error in getting dataplane clusters from ONOS" + str(controller + 1) )
-                consistent_clusters_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " clusters response: " + repr(clusters[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_clusters_result,
-                onpass="Clusters view is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of clusters")
-        num_clusters =  len(json.loads(clusters[0])) #there should always only be one cluster
-        utilities.assert_equals(expect = 1, actual = num_clusters,
-                onpass="ONOS shows 1 SCC",
-                onfail="ONOS shows "+str(num_clusters) +" SCCs")
+                main.log.report( "Error in getting dataplane clusters " +
+                                 "from ONOS" + controllerStr )
+                consistentClustersResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr +
+                               " clusters response: " +
+                               repr( clusters[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentClustersResult,
+            onpass="Clusters view is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of clusters" )
+        # there should always only be one cluster
+        numClusters = len( json.loads( clusters[ 0 ] ) )
+        utilities.assert_equals(
+            expect=1,
+            actual=numClusters,
+            onpass="ONOS shows 1 SCC",
+            onfail="ONOS shows " +
+            str( numClusters ) +
+            " SCCs" )
 
-
-        #paths
-        consistent_paths_result = main.TRUE
+        # paths
+        consistentPathsResult = main.TRUE
         for controller in range( len( paths ) ):
-            if not "Error" in paths[controller]:
-                if paths[controller] == paths[0]:
+            controllerStr = str( controller + 1 )
+            if "Error" not in paths[ controller ]:
+                if paths[ controller ] == paths[ 0 ]:
                     continue
-                else:#paths not consistent
-                    main.log.report("paths from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    consistent_paths_result = main.FALSE
+                else:  # paths not consistent
+                    main.log.report( "paths from ONOS" + controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    consistentPathsResult = main.FALSE
 
             else:
-                main.log.report("Error in getting paths from ONOS" + str(controller + 1) )
-                consistent_paths_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " paths response: " + repr(paths[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_paths_result,
-                onpass="Paths count is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different counts of paths")
+                main.log.report( "Error in getting paths from ONOS" +
+                                 controllerStr )
+                consistentPathsResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr + " paths response: " +
+                               repr( paths[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentPathsResult,
+            onpass="Paths count is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different counts of paths" )
 
-
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        for controller in range(num_controllers):
-            if devices[controller] or not "Error" in devices[controller]:
-                current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        for controller in range( numControllers ):
+            controllerStr = str( controller + 1 )
+            if devices[ controller ] or "Error" not in devices[ controller ]:
+                currentDevicesResult = main.Mininet1.compareSwitches(
+                    MNTopo,
+                    json.loads(
+                        devices[ controller ] ) )
             else:
-                current_devices_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                    onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                currentDevicesResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentDevicesResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " Switches view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " Switches view is incorrect" )
 
-            if ports[controller] or not "Error" in ports[controller]:
-                current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+            if ports[ controller ] or "Error" not in ports[ controller ]:
+                currentPortsResult = main.Mininet1.comparePorts(
+                    MNTopo,
+                    json.loads(
+                        ports[ controller ] ) )
             else:
-                current_ports_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                    onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                currentPortsResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentPortsResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " ports view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " ports view is incorrect" )
 
-            if links[controller] or not "Error" in links[controller]:
-                current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+            if links[ controller ] or "Error" not in links[ controller ]:
+                currentLinksResult = main.Mininet1.compareLinks(
+                    MNTopo,
+                    json.loads(
+                        links[ controller ] ) )
             else:
-                current_links_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                    onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
+                currentLinksResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentLinksResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " links view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " links view is incorrect" )
 
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-        topo_result = devices_results and ports_results and links_results\
-                and consistent_hosts_result and consistent_clusters_result\
-                and consistent_paths_result
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
+        topoResult = devicesResults and portsResults and linksResults\
+            and consistentHostsResult and consistentClustersResult\
+            and consistentPathsResult
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
 
-        final_assert = main.TRUE
-        final_assert = final_assert and topo_result and flow_check \
-                and intent_check and consistent_mastership and roles_not_null
-        utilities.assert_equals(expect=main.TRUE, actual=final_assert,
-                onpass="State check successful",
-                onfail="State check NOT successful")
+        finalAssert = main.TRUE
+        finalAssert = finalAssert and topoResult and flowCheck \
+            and intentCheck and consistentMastership and rolesNotNull
+        utilities.assert_equals( expect=main.TRUE, actual=finalAssert,
+                                onpass="State check successful",
+                                onfail="State check NOT successful" )
 
-
-    def CASE6(self,main) :
-        '''
+    def CASE6( self, main ):
+        """
         The Failure case.
-        '''
-        main.log.report("Restart entire ONOS cluster")
-        main.log.case("Restart entire ONOS cluster")
-        main.ONOSbench.onos_kill(ONOS1_ip)
-        main.ONOSbench.onos_kill(ONOS2_ip)
-        main.ONOSbench.onos_kill(ONOS3_ip)
-        main.ONOSbench.onos_kill(ONOS4_ip)
-        main.ONOSbench.onos_kill(ONOS5_ip)
-        main.ONOSbench.onos_kill(ONOS6_ip)
-        main.ONOSbench.onos_kill(ONOS7_ip)
+        """
+        main.log.report( "Restart entire ONOS cluster" )
+        main.log.case( "Restart entire ONOS cluster" )
+        main.ONOSbench.onosKill( ONOS1Ip )
+        main.ONOSbench.onosKill( ONOS2Ip )
+        main.ONOSbench.onosKill( ONOS3Ip )
+        main.ONOSbench.onosKill( ONOS4Ip )
+        main.ONOSbench.onosKill( ONOS5Ip )
+        main.ONOSbench.onosKill( ONOS6Ip )
+        main.ONOSbench.onosKill( ONOS7Ip )
 
-        main.step("Checking if ONOS is up yet")
+        main.step( "Checking if ONOS is up yet" )
         count = 0
-        onos_isup_result = main.FALSE
-        while onos_isup_result == main.FALSE and count < 10:
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            onos2_isup = main.ONOSbench.isup(ONOS2_ip)
-            onos3_isup = main.ONOSbench.isup(ONOS3_ip)
-            onos4_isup = main.ONOSbench.isup(ONOS4_ip)
-            onos5_isup = main.ONOSbench.isup(ONOS5_ip)
-            onos6_isup = main.ONOSbench.isup(ONOS6_ip)
-            onos7_isup = main.ONOSbench.isup(ONOS7_ip)
-            onos_isup_result = onos1_isup and onos2_isup and onos3_isup\
-                    and onos4_isup and onos5_isup and onos6_isup and onos7_isup
+        onosIsupResult = main.FALSE
+        while onosIsupResult == main.FALSE and count < 10:
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            onos2Isup = main.ONOSbench.isup( ONOS2Ip )
+            onos3Isup = main.ONOSbench.isup( ONOS3Ip )
+            onos4Isup = main.ONOSbench.isup( ONOS4Ip )
+            onos5Isup = main.ONOSbench.isup( ONOS5Ip )
+            onos6Isup = main.ONOSbench.isup( ONOS6Ip )
+            onos7Isup = main.ONOSbench.isup( ONOS7Ip )
+            onosIsupResult = onos1Isup and onos2Isup and onos3Isup\
+                and onos4Isup and onos5Isup and onos6Isup and onos7Isup
             count = count + 1
         # TODO: if it becomes an issue, we can retry this step  a few times
 
+        cliResult1 = main.ONOScli1.startOnosCli( ONOS1Ip )
+        cliResult2 = main.ONOScli2.startOnosCli( ONOS2Ip )
+        cliResult3 = main.ONOScli3.startOnosCli( ONOS3Ip )
+        cliResult4 = main.ONOScli4.startOnosCli( ONOS4Ip )
+        cliResult5 = main.ONOScli5.startOnosCli( ONOS5Ip )
+        cliResult6 = main.ONOScli6.startOnosCli( ONOS6Ip )
+        cliResult7 = main.ONOScli7.startOnosCli( ONOS7Ip )
+        cliResults = cliResult1 and cliResult2 and cliResult3\
+            and cliResult4 and cliResult5 and cliResult6\
+            and cliResult7
 
-        cli_result1 = main.ONOScli1.start_onos_cli(ONOS1_ip)
-        cli_result2 = main.ONOScli2.start_onos_cli(ONOS2_ip)
-        cli_result3 = main.ONOScli3.start_onos_cli(ONOS3_ip)
-        cli_result4 = main.ONOScli4.start_onos_cli(ONOS4_ip)
-        cli_result5 = main.ONOScli5.start_onos_cli(ONOS5_ip)
-        cli_result6 = main.ONOScli6.start_onos_cli(ONOS6_ip)
-        cli_result7 = main.ONOScli7.start_onos_cli(ONOS7_ip)
-        cli_results = cli_result1 and cli_result2 and cli_result3\
-                and cli_result4 and cli_result5 and cli_result6\
-                and cli_result7
+        caseResults = main.TRUE and onosIsupResult and cliResults
+        utilities.assert_equals( expect=main.TRUE, actual=caseResults,
+                                onpass="ONOS restart successful",
+                                onfail="ONOS restart NOT successful" )
 
-        case_results = main.TRUE and onos_isup_result and cli_results
-        utilities.assert_equals(expect=main.TRUE, actual=case_results,
-                onpass="ONOS restart successful",
-                onfail="ONOS restart NOT successful")
-
-
-    def CASE7(self,main) :
-        '''
+    def CASE7( self, main ):
+        """
         Check state after ONOS failure
-        '''
-        import os
+        """
         import json
-        main.case("Running ONOS Constant State Tests")
+        main.case( "Running ONOS Constant State Tests" )
 
-        #Assert that each device has a master
-        ONOS1_master_not_null = main.ONOScli1.roles_not_null()
-        ONOS2_master_not_null = main.ONOScli2.roles_not_null()
-        ONOS3_master_not_null = main.ONOScli3.roles_not_null()
-        ONOS4_master_not_null = main.ONOScli4.roles_not_null()
-        ONOS5_master_not_null = main.ONOScli5.roles_not_null()
-        ONOS6_master_not_null = main.ONOScli6.roles_not_null()
-        ONOS7_master_not_null = main.ONOScli7.roles_not_null()
-        roles_not_null = ONOS1_master_not_null and ONOS2_master_not_null and\
-                ONOS3_master_not_null and ONOS4_master_not_null and\
-                ONOS5_master_not_null and ONOS6_master_not_null and\
-                ONOS7_master_not_null
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        ONOS1MasterNotNull = main.ONOScli1.rolesNotNull()
+        ONOS2MasterNotNull = main.ONOScli2.rolesNotNull()
+        ONOS3MasterNotNull = main.ONOScli3.rolesNotNull()
+        ONOS4MasterNotNull = main.ONOScli4.rolesNotNull()
+        ONOS5MasterNotNull = main.ONOScli5.rolesNotNull()
+        ONOS6MasterNotNull = main.ONOScli6.rolesNotNull()
+        ONOS7MasterNotNull = main.ONOScli7.rolesNotNull()
+        rolesNotNull = ONOS1MasterNotNull and ONOS2MasterNotNull and\
+            ONOS3MasterNotNull and ONOS4MasterNotNull and\
+            ONOS5MasterNotNull and ONOS6MasterNotNull and\
+            ONOS7MasterNotNull
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-
-        main.step("Check if switch roles are consistent across all nodes")
-        ONOS1_mastership = main.ONOScli1.roles()
-        ONOS2_mastership = main.ONOScli2.roles()
-        ONOS3_mastership = main.ONOScli3.roles()
-        ONOS4_mastership = main.ONOScli4.roles()
-        ONOS5_mastership = main.ONOScli5.roles()
-        ONOS6_mastership = main.ONOScli6.roles()
-        ONOS7_mastership = main.ONOScli7.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership\
-                or "Error" in ONOS2_mastership or not ONOS2_mastership\
-                or "Error" in ONOS3_mastership or not ONOS3_mastership\
-                or "Error" in ONOS4_mastership or not ONOS4_mastership\
-                or "Error" in ONOS5_mastership or not ONOS5_mastership\
-                or "Error" in ONOS6_mastership or not ONOS6_mastership\
-                or "Error" in ONOS7_mastership or not ONOS7_mastership:
-                    main.log.error("Error in getting ONOS mastership")
-                    main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-                    main.log.warn("ONOS2 mastership response: " + repr(ONOS2_mastership))
-                    main.log.warn("ONOS3 mastership response: " + repr(ONOS3_mastership))
-                    main.log.warn("ONOS4 mastership response: " + repr(ONOS4_mastership))
-                    main.log.warn("ONOS5 mastership response: " + repr(ONOS5_mastership))
-                    main.log.warn("ONOS6 mastership response: " + repr(ONOS6_mastership))
-                    main.log.warn("ONOS7 mastership response: " + repr(ONOS7_mastership))
-                    consistent_mastership = main.FALSE
-        elif ONOS1_mastership == ONOS2_mastership\
-                and ONOS1_mastership == ONOS3_mastership\
-                and ONOS1_mastership == ONOS4_mastership\
-                and ONOS1_mastership == ONOS5_mastership\
-                and ONOS1_mastership == ONOS6_mastership\
-                and ONOS1_mastership == ONOS7_mastership:
-                    consistent_mastership = main.TRUE
-                    main.log.report("Switch roles are consistent across all ONOS nodes")
+        main.step( "Check if switch roles are consistent across all nodes" )
+        ONOS1Mastership = main.ONOScli1.roles()
+        ONOS2Mastership = main.ONOScli2.roles()
+        ONOS3Mastership = main.ONOScli3.roles()
+        ONOS4Mastership = main.ONOScli4.roles()
+        ONOS5Mastership = main.ONOScli5.roles()
+        ONOS6Mastership = main.ONOScli6.roles()
+        ONOS7Mastership = main.ONOScli7.roles()
+        if "Error" in ONOS1Mastership or not ONOS1Mastership\
+                or "Error" in ONOS2Mastership or not ONOS2Mastership\
+                or "Error" in ONOS3Mastership or not ONOS3Mastership\
+                or "Error" in ONOS4Mastership or not ONOS4Mastership\
+                or "Error" in ONOS5Mastership or not ONOS5Mastership\
+                or "Error" in ONOS6Mastership or not ONOS6Mastership\
+                or "Error" in ONOS7Mastership or not ONOS7Mastership:
+            main.log.error( "Error in getting ONOS mastership" )
+            main.log.warn( "ONOS1 mastership response: " +
+                           repr( ONOS1Mastership ) )
+            main.log.warn( "ONOS2 mastership response: " +
+                           repr( ONOS2Mastership ) )
+            main.log.warn( "ONOS3 mastership response: " +
+                           repr( ONOS3Mastership ) )
+            main.log.warn( "ONOS4 mastership response: " +
+                           repr( ONOS4Mastership ) )
+            main.log.warn( "ONOS5 mastership response: " +
+                           repr( ONOS5Mastership ) )
+            main.log.warn( "ONOS6 mastership response: " +
+                           repr( ONOS6Mastership ) )
+            main.log.warn( "ONOS7 mastership response: " +
+                           repr( ONOS7Mastership ) )
+            consistentMastership = main.FALSE
+        elif ONOS1Mastership == ONOS2Mastership\
+                and ONOS1Mastership == ONOS3Mastership\
+                and ONOS1Mastership == ONOS4Mastership\
+                and ONOS1Mastership == ONOS5Mastership\
+                and ONOS1Mastership == ONOS6Mastership\
+                and ONOS1Mastership == ONOS7Mastership:
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 roles: ", json.dumps(json.loads(ONOS1_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 roles: ", json.dumps(json.loads(ONOS2_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 roles: ", json.dumps(json.loads(ONOS3_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 roles: ", json.dumps(json.loads(ONOS4_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 roles: ", json.dumps(json.loads(ONOS5_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 roles: ", json.dumps(json.loads(ONOS6_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 roles: ", json.dumps(json.loads(ONOS7_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            consistent_mastership = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
-
+            main.log.warn( "ONOS1 roles: ", json.dumps(
+                json.loads( ONOS1Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS2 roles: ", json.dumps(
+                json.loads( ONOS2Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS3 roles: ", json.dumps(
+                json.loads( ONOS3Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS4 roles: ", json.dumps(
+                json.loads( ONOS4Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS5 roles: ", json.dumps(
+                json.loads( ONOS5Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS6 roles: ", json.dumps(
+                json.loads( ONOS6Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS7 roles: ", json.dumps(
+                json.loads( ONOS7Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            consistentMastership = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
         description2 = "Compare switch roles from before failure"
-        main.step(description2)
+        main.step( description2 )
 
-        current_json = json.loads(ONOS1_mastership)
-        old_json = json.loads(mastership_state)
-        mastership_check = main.TRUE
-        for i in range(1,29):
-            switchDPID = str(main.Mininet1.getSwitchDPID(switch="s"+str(i)))
+        currentJson = json.loads( ONOS1Mastership )
+        oldJson = json.loads( mastershipState )
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            switchDPID = str(
+                main.Mininet1.getSwitchDPID(
+                    switch="s" +
+                    str( i ) ) )
 
-            current = [switch['master'] for switch in current_json if switchDPID in switch['id']]
-            old = [switch['master'] for switch in old_json if switchDPID in switch['id']]
+            current = [ switch[ 'master' ] for switch in currentJson
+                        if switchDPID in switch[ 'id' ] ]
+            old = [ switch[ 'master' ] for switch in oldJson
+                    if switchDPID in switch[ 'id' ] ]
             if current == old:
-                mastership_check = mastership_check and main.TRUE
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                main.log.warn("Mastership of switch %s changed" % switchDPID)
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Mastership of Switches was not changed")
-        utilities.assert_equals(expect=main.TRUE,actual=mastership_check,
-                onpass="Mastership of Switches was not changed",
-                onfail="Mastership of some switches changed")
-        #NOTE: we expect mastership to change on controller failure
-        mastership_check = consistent_mastership
+                main.log.warn( "Mastership of switch %s changed" % switchDPID )
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Mastership of Switches was not changed" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Mastership of Switches was not changed",
+            onfail="Mastership of some switches changed" )
+        # NOTE: we expect mastership to change on controller failure
+        mastershipCheck = mastershipCheck and consistentMastership
 
-
-
-        main.step("Get the intents and compare across all nodes")
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        ONOS2_intents = main.ONOScli2.intents( json_format=True )
-        ONOS3_intents = main.ONOScli3.intents( json_format=True )
-        ONOS4_intents = main.ONOScli4.intents( json_format=True )
-        ONOS5_intents = main.ONOScli5.intents( json_format=True )
-        ONOS6_intents = main.ONOScli6.intents( json_format=True )
-        ONOS7_intents = main.ONOScli7.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents\
-                or "Error" in ONOS2_intents or not ONOS2_intents\
-                or "Error" in ONOS3_intents or not ONOS3_intents\
-                or "Error" in ONOS4_intents or not ONOS4_intents\
-                or "Error" in ONOS5_intents or not ONOS5_intents\
-                or "Error" in ONOS6_intents or not ONOS6_intents\
-                or "Error" in ONOS7_intents or not ONOS7_intents:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
-                    main.log.warn("ONOS2 intents response: " + repr(ONOS2_intents))
-                    main.log.warn("ONOS3 intents response: " + repr(ONOS3_intents))
-                    main.log.warn("ONOS4 intents response: " + repr(ONOS4_intents))
-                    main.log.warn("ONOS5 intents response: " + repr(ONOS5_intents))
-                    main.log.warn("ONOS6 intents response: " + repr(ONOS6_intents))
-                    main.log.warn("ONOS7 intents response: " + repr(ONOS7_intents))
-        elif ONOS1_intents == ONOS2_intents\
-                and ONOS1_intents == ONOS3_intents\
-                and ONOS1_intents == ONOS4_intents\
-                and ONOS1_intents == ONOS5_intents\
-                and ONOS1_intents == ONOS6_intents\
-                and ONOS1_intents == ONOS7_intents:
-                    intent_check = main.TRUE
-                    main.log.report("Intents are consistent across all ONOS nodes")
+        main.step( "Get the intents and compare across all nodes" )
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        ONOS2Intents = main.ONOScli2.intents( jsonFormat=True )
+        ONOS3Intents = main.ONOScli3.intents( jsonFormat=True )
+        ONOS4Intents = main.ONOScli4.intents( jsonFormat=True )
+        ONOS5Intents = main.ONOScli5.intents( jsonFormat=True )
+        ONOS6Intents = main.ONOScli6.intents( jsonFormat=True )
+        ONOS7Intents = main.ONOScli7.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents\
+                or "Error" in ONOS2Intents or not ONOS2Intents\
+                or "Error" in ONOS3Intents or not ONOS3Intents\
+                or "Error" in ONOS4Intents or not ONOS4Intents\
+                or "Error" in ONOS5Intents or not ONOS5Intents\
+                or "Error" in ONOS6Intents or not ONOS6Intents\
+                or "Error" in ONOS7Intents or not ONOS7Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
+            main.log.warn( "ONOS2 intents response: " + repr( ONOS2Intents ) )
+            main.log.warn( "ONOS3 intents response: " + repr( ONOS3Intents ) )
+            main.log.warn( "ONOS4 intents response: " + repr( ONOS4Intents ) )
+            main.log.warn( "ONOS5 intents response: " + repr( ONOS5Intents ) )
+            main.log.warn( "ONOS6 intents response: " + repr( ONOS6Intents ) )
+            main.log.warn( "ONOS7 intents response: " + repr( ONOS7Intents ) )
+        elif ONOS1Intents == ONOS2Intents\
+                and ONOS1Intents == ONOS3Intents\
+                and ONOS1Intents == ONOS4Intents\
+                and ONOS1Intents == ONOS5Intents\
+                and ONOS1Intents == ONOS6Intents\
+                and ONOS1Intents == ONOS7Intents:
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 intents: ")
-            print json.dumps(json.loads(ONOS1_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS2 intents: ")
-            print json.dumps(json.loads(ONOS2_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS3 intents: ")
-            print json.dumps(json.loads(ONOS3_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS4 intents: ")
-            print json.dumps(json.loads(ONOS4_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS5 intents: ")
-            print json.dumps(json.loads(ONOS5_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS6 intents: ")
-            print json.dumps(json.loads(ONOS6_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS7 intents: ")
-            print json.dumps(json.loads(ONOS7_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            main.log.warn( "ONOS1 intents: " )
+            print json.dumps( json.loads( ONOS1Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS2 intents: " )
+            print json.dumps( json.loads( ONOS2Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS3 intents: " )
+            print json.dumps( json.loads( ONOS3Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS4 intents: " )
+            print json.dumps( json.loads( ONOS4Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS5 intents: " )
+            print json.dumps( json.loads( ONOS5Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS6 intents: " )
+            print json.dumps( json.loads( ONOS6Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS7 intents: " )
+            print json.dumps( json.loads( ONOS7Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-        #NOTE: Hazelcast has no durability, so intents are lost across system restarts
-        '''
-        main.step("Compare current intents with intents before the failure")
-        #NOTE: this requires case 5 to pass for intent_state to be set.
+        # NOTE: Hazelcast has no durability, so intents are lost across system
+        # restarts
+        """
+        main.step( "Compare current intents with intents before the failure" )
+        # NOTE: this requires case 5 to pass for intentState to be set.
         #      maybe we should stop the test if that fails?
-        if intent_state == ONOS1_intents:
-            same_intents = main.TRUE
-            main.log.report("Intents are consistent with before failure")
-        #TODO: possibly the states have changed? we may need to figure out what the aceptable states are
+        if intentState == ONOS1Intents:
+            sameIntents = main.TRUE
+            main.log.report( "Intents are consistent with before failure" )
+        # TODO: possibly the states have changed? we may need to figure out
+        # what the aceptable states are
         else:
             try:
-                main.log.warn("ONOS1 intents: ")
-                print json.dumps(json.loads(ONOS1_intents),
-                    sort_keys=True, indent=4, separators=(',', ': '))
+                main.log.warn( "ONOS1 intents: " )
+                print json.dumps( json.loads( ONOS1Intents ),
+                                  sort_keys=True, indent=4,
+                                  separators=( ',', ': ' ) )
             except:
                 pass
-            same_intents = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=same_intents,
-                onpass="Intents are consistent with before failure",
-                onfail="The Intents changed during failure")
-        intent_check = intent_check and same_intents
-        '''
+            sameIntents = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=sameIntents,
+            onpass="Intents are consistent with before failure",
+            onfail="The Intents changed during failure" )
+        intentCheck = intentCheck and sameIntents
+        """
+        main.step( "Get the OF Table entries and compare to before " +
+                   "component failure" )
+        FlowTables = main.TRUE
+        flows2 = []
+        for i in range( 28 ):
+            main.log.info( "Checking flow table on s" + str( i + 1 ) )
+            tmpFlows = main.Mininet2.getFlowTable( 1.3, "s" + str( i + 1 ) )
+            flows2.append( tmpFlows )
+            tempResult = main.Mininet2.flowComp(
+                flow1=flows[ i ],
+                flow2=tmpFlows )
+            FlowTables = FlowTables and tempResult
+            if FlowTables == main.FALSE:
+                main.log.info( "Differences in flow table for switch: s" +
+                               str( i + 1 ) )
+        if FlowTables == main.TRUE:
+            main.log.report( "No changes were found in the flow tables" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=FlowTables,
+            onpass="No changes were found in the flow tables",
+            onfail="Changes were found in the flow tables" )
 
-
-
-        main.step("Get the OF Table entries and compare to before component failure")
-        Flow_Tables = main.TRUE
-        flows2=[]
-        for i in range(28):
-            main.log.info("Checking flow table on s" + str(i+1))
-            tmp_flows = main.Mininet2.get_flowTable(1.3, "s"+str(i+1))
-            flows2.append(tmp_flows)
-            temp_result = main.Mininet2.flow_comp(flow1=flows[i],flow2=tmp_flows)
-            Flow_Tables = Flow_Tables and temp_result
-            if Flow_Tables == main.FALSE:
-                main.log.info("Differences in flow table for switch: "+str(i+1))
-        if Flow_Tables == main.TRUE:
-            main.log.report("No changes were found in the flow tables")
-        utilities.assert_equals(expect=main.TRUE,actual=Flow_Tables,
-                onpass="No changes were found in the flow tables",
-                onfail="Changes were found in the flow tables")
-
-        main.step("Check the continuous pings to ensure that no packets were dropped during component failure")
-        #FIXME: This check is always failing. Investigate cause
-        #NOTE:  this may be something to do with file permsissions
+        main.step( "Check the continuous pings to ensure that no packets " +
+                   "were dropped during component failure" )
+        # FIXME: This check is always failing. Investigate cause
+        # NOTE:  this may be something to do with file permsissions
         #       or slight change in format
-        main.Mininet2.pingKill(main.params['TESTONUSER'], main.params['TESTONIP'])
-        Loss_In_Pings = main.FALSE 
-        #NOTE: checkForLoss returns main.FALSE with 0% packet loss
-        for i in range(8,18):
-            main.log.info("Checking for a loss in pings along flow from s" + str(i))
-            Loss_In_Pings = main.Mininet2.checkForLoss("/tmp/ping.h"+str(i)) or Loss_In_Pings
-        if Loss_In_Pings == main.TRUE:
-            main.log.info("Loss in ping detected")
-        elif Loss_In_Pings == main.ERROR:
-            main.log.info("There are multiple mininet process running")
-        elif Loss_In_Pings == main.FALSE:
-            main.log.info("No Loss in the pings")
-            main.log.report("No loss of dataplane connectivity")
-        utilities.assert_equals(expect=main.FALSE,actual=Loss_In_Pings,
-                onpass="No Loss of connectivity",
-                onfail="Loss of dataplane connectivity detected")
-        #NOTE: Since intents are not persisted with Hazelcast, we expect this
-        Loss_In_Pings = main.FALSE
+        main.Mininet2.pingKill(
+            main.params[ 'TESTONUSER' ],
+            main.params[ 'TESTONIP' ] )
+        LossInPings = main.FALSE
+        # NOTE: checkForLoss returns main.FALSE with 0% packet loss
+        for i in range( 8, 18 ):
+            main.log.info(
+                "Checking for a loss in pings along flow from s" +
+                str( i ) )
+            LossInPings = main.Mininet2.checkForLoss(
+                "/tmp/ping.h" +
+                str( i ) ) or LossInPings
+        if LossInPings == main.TRUE:
+            main.log.info( "Loss in ping detected" )
+        elif LossInPings == main.ERROR:
+            main.log.info( "There are multiple mininet process running" )
+        elif LossInPings == main.FALSE:
+            main.log.info( "No Loss in the pings" )
+            main.log.report( "No loss of dataplane connectivity" )
+        utilities.assert_equals(
+            expect=main.FALSE,
+            actual=LossInPings,
+            onpass="No Loss of connectivity",
+            onfail="Loss of dataplane connectivity detected" )
+        # NOTE: Since intents are not persisted with Hazelcast, we expect this
+        LossInPings = main.FALSE
 
-
-        #Test of LeadershipElection
-        leader_list = []
-        leader_result = main.TRUE
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leaderN = node.election_test_leader()
-            leader_list.append(leaderN)
+        # Test of LeadershipElection
+        leaderList = []
+        leaderResult = main.TRUE
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderN = node.electionTestLeader()
+            leaderList.append( leaderN )
             if leaderN == main.FALSE:
-                #error in  response
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
-            elif leaderN == None:
-                main.log.report("ONOS"+str(controller) + " shows no leader for the election-app was elected after the old one died")
-                leader_result = main.FALSE
-        if len( set( leader_list ) ) != 1:
-            leader_result = main.FALSE
-            main.log.error("Inconsistent view of leader for the election test app")
-            #TODO: print the list
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was re-elected after restart)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                # error in  response
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
+            elif leaderN is None:
+                main.log.report( "ONOS" + str( controller ) +
+                                 " shows no leader for the election-app was" +
+                                 " elected after the old one died" )
+                leaderResult = main.FALSE
+        if len( set( leaderList ) ) != 1:
+            leaderResult = main.FALSE
+            main.log.error(
+                "Inconsistent view of leader for the election test app" )
+            # TODO: print the list
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was re-elected if applicable )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        result = mastership_check and intent_check and Flow_Tables and (not Loss_In_Pings) and roles_not_null\
-                and leader_result
-        result = int(result)
+        result = ( mastershipCheck and intentCheck and FlowTables and
+                   ( not LossInPings ) and rolesNotNull and leaderResult )
+        result = int( result )
         if result == main.TRUE:
-            main.log.report("Constant State Tests Passed")
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Constant State Tests Passed",
-                onfail="Constant state tests failed")
+            main.log.report( "Constant State Tests Passed" )
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Constant State Tests Passed",
+                                onfail="Constant state tests failed" )
 
-    def CASE8 (self,main):
-        '''
+    def CASE8( self, main ):
+        """
         Compare topo
-        '''
+        """
         import sys
-        sys.path.append("/home/admin/sts") # Trying to remove some dependancies, #FIXME add this path to params
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # FIXME add this path to params
+        sys.path.append( "/home/admin/sts" )
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
         import json
         import time
 
-        description ="Compare ONOS Topology view to Mininet topology"
-        main.case(description)
-        main.log.report(description)
-        main.step("Create TestONTopology object")
+        description = "Compare ONOS Topology view to Mininet topology"
+        main.case( description )
+        main.log.report( description )
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         while True:
             temp = ()
-            if ('ip' + str(count)) in main.params['CTRL']:
-                temp = temp + (getattr(main,('ONOS' + str(count))),)
-                temp = temp + ("ONOS"+str(count),)
-                temp = temp + (main.params['CTRL']['ip'+str(count)],)
-                temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-                ctrls.append(temp)
+            if ( 'ip' + str( count ) ) in main.params[ 'CTRL' ]:
+                temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+                temp = temp + ( "ONOS" + str( count ), )
+                temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+                temp = temp + \
+                    ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+                ctrls.append( temp )
                 count = count + 1
             else:
                 break
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        topo_result = main.FALSE
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        topoResult = main.FALSE
         elapsed = 0
         count = 0
-        main.step("Collecting topology information from ONOS")
-        start_time = time.time()
-        while topo_result == main.FALSE and elapsed < 60:
+        main.step( "Collecting topology information from ONOS" )
+        startTime = time.time()
+        while topoResult == main.FALSE and elapsed < 60:
             count = count + 1
             if count > 1:
-                MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
-            cli_start = time.time()
+                # TODO: Depricate STS usage
+                MNTopo = TestONTopology(
+                    main.Mininet1,
+                    ctrls )
+            cliStart = time.time()
             devices = []
             devices.append( main.ONOScli1.devices() )
             devices.append( main.ONOScli2.devices() )
@@ -1369,490 +1541,578 @@
             clusters.append( main.ONOScli6.clusters() )
             clusters.append( main.ONOScli7.clusters() )
             paths = []
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli1.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli2.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli3.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli4.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli5.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli6.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli7.topology() )
-            paths.append( temp_topo.get('paths', False) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli1.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli2.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli3.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli4.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli5.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli6.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli7.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
 
+            elapsed = time.time() - startTime
+            cliTime = time.time() - cliStart
+            print "CLI time: " + str( cliTime )
 
-            elapsed = time.time() - start_time
-            cli_time = time.time() - cli_start
-            print "CLI time: " + str(cli_time)
-
-            for controller in range(num_controllers):
-                if devices[controller] or not "Error" in devices[controller]:
-                    current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+            for controller in range( numControllers ):
+                controllerStr = str( controller + 1 )
+                if devices[ controller ] or "Error" not in devices[
+                        controller ]:
+                    currentDevicesResult = main.Mininet1.compareSwitches(
+                        MNTopo,
+                        json.loads(
+                            devices[ controller ] ) )
                 else:
-                    current_devices_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                        onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                    currentDevicesResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentDevicesResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " Switches view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " Switches view is incorrect" )
 
-                if ports[controller] or not "Error" in ports[controller]:
-                    current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+                if ports[ controller ] or "Error" not in ports[ controller ]:
+                    currentPortsResult = main.Mininet1.comparePorts(
+                        MNTopo,
+                        json.loads(
+                            ports[ controller ] ) )
                 else:
-                    current_ports_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                        onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                    currentPortsResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentPortsResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " ports view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " ports view is incorrect" )
 
-                if links[controller] or not "Error" in links[controller]:
-                    current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+                if links[ controller ] or "Error" not in links[ controller ]:
+                    currentLinksResult = main.Mininet1.compareLinks(
+                        MNTopo,
+                        json.loads(
+                            links[ controller ] ) )
                 else:
-                    current_links_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                        onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+                    currentLinksResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentLinksResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " links view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " links view is incorrect" )
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-            #Compare json objects for hosts, dataplane clusters and paths
+            # Compare json objects for hosts, dataplane clusters and paths
 
-            #hosts
-            consistent_hosts_result = main.TRUE
+            # hosts
+            consistentHostsResult = main.TRUE
             for controller in range( len( hosts ) ):
-                if not "Error" in hosts[controller]:
-                    if hosts[controller] == hosts[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in hosts[ controller ]:
+                    if hosts[ controller ] == hosts[ 0 ]:
                         continue
-                    else:#hosts not consistent
-                        main.log.report("hosts from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        main.log.warn( repr( hosts[controller] ) )
-                        consistent_hosts_result = main.FALSE
+                    else:  # hosts not consistent
+                        main.log.report( "hosts from ONOS" + controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        main.log.warn( repr( hosts[ controller ] ) )
+                        consistentHostsResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting ONOS hosts from ONOS" + str(controller + 1) )
-                    consistent_hosts_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " hosts response: " + repr(hosts[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_hosts_result,
-                    onpass="Hosts view is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different views of hosts")
+                    main.log.report( "Error in getting ONOS hosts from ONOS" +
+                                     controllerStr )
+                    consistentHostsResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " hosts response: " +
+                                   repr( hosts[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentHostsResult,
+                onpass="Hosts view is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different views of hosts" )
 
-            #Strongly connected clusters of devices
-            consistent_clusters_result = main.TRUE
+            # Strongly connected clusters of devices
+            consistentClustersResult = main.TRUE
             for controller in range( len( clusters ) ):
-                if not "Error" in clusters[controller]:
-                    if clusters[controller] == clusters[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in clusters[ controller ]:
+                    if clusters[ controller ] == clusters[ 0 ]:
                         continue
-                    else:#clusters not consistent
-                        main.log.report("clusters from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        consistent_clusters_result = main.FALSE
+                    else:  # clusters not consistent
+                        main.log.report( "clusters from ONOS" +
+                                         controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        consistentClustersResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting dataplane clusters from ONOS" + str(controller + 1) )
-                    consistent_clusters_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " clusters response: " + repr(clusters[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_clusters_result,
-                    onpass="Clusters view is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different views of clusters")
-            num_clusters =  len(json.loads(clusters[0])) #there should always only be one cluster
-            utilities.assert_equals(expect = 1, actual = num_clusters,
-                    onpass="ONOS shows 1 SCC",
-                    onfail="ONOS shows "+str(num_clusters) +" SCCs")
+                    main.log.report( "Error in getting dataplane clusters " +
+                                     "from ONOS" + controllerStr )
+                    consistentClustersResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " clusters response: " +
+                                   repr( clusters[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentClustersResult,
+                onpass="Clusters view is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different views of clusters" )
+            # there should always only be one cluster
+            numClusters = len( json.loads( clusters[ 0 ] ) )
+            utilities.assert_equals(
+                expect=1,
+                actual=numClusters,
+                onpass="ONOS shows 1 SCC",
+                onfail="ONOS shows " +
+                str( numClusters ) +
+                " SCCs" )
 
-
-            #paths
-            consistent_paths_result = main.TRUE
+            # paths
+            consistentPathsResult = main.TRUE
             for controller in range( len( paths ) ):
-                if not "Error" in paths[controller]:
-                    if paths[controller] == paths[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in paths[ controller ]:
+                    if paths[ controller ] == paths[ 0 ]:
                         continue
-                    else:#paths not consistent
-                        main.log.report("paths from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        consistent_paths_result = main.FALSE
+                    else:  # paths not consistent
+                        main.log.report( "paths from ONOS" + controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        consistentPathsResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting paths from ONOS" + str(controller + 1) )
-                    consistent_paths_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " paths response: " + repr(paths[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_paths_result,
-                    onpass="Paths count is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different counts of paths")
+                    main.log.report( "Error in getting paths from ONOS" +
+                                     controllerStr )
+                    consistentPathsResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " paths response: " +
+                                   repr( paths[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentPathsResult,
+                onpass="Paths count is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different counts of paths" )
 
+            topoResult = ( devicesResults and portsResults and linksResults
+                           and consistentHostsResult
+                           and consistentClustersResult
+                           and consistentPathsResult )
 
-            topo_result = devices_results and ports_results and links_results\
-                    and consistent_hosts_result and consistent_clusters_result and consistent_paths_result
+        topoResult = topoResult and int( count <= 2 )
+        note = "note it takes about " + str( int( cliTime ) ) + \
+            " seconds for the test to make all the cli calls to fetch " +\
+            "the topology from each ONOS instance"
+        main.log.report(
+            "Very crass estimate for topology discovery/convergence( " +
+            str( note ) + " ): " + str( elapsed ) + " seconds, " +
+            str( count ) + " tries" )
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
+        if topoResult == main.TRUE:
+            main.log.report( "ONOS topology view matches Mininet topology" )
 
-        topo_result = topo_result and int(count <= 2)
-        note = "note it takes about "+str( int(cli_time) )+" seconds for the test to make all the cli calls to fetch the topology from each ONOS instance"
-        main.log.report("Very crass estimate for topology discovery/convergence("+ str(note) + "): " +\
-                str(elapsed) + " seconds, " + str(count) +" tries" )
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
-        if topo_result == main.TRUE:
-            main.log.report("ONOS topology view matches Mininet topology")
-
-
-    def CASE9 (self,main):
-        '''
+    def CASE9( self, main ):
+        """
         Link s3-s28 down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Turn off a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Turn off a link to ensure that Link Discovery " +\
+            "is working properly"
+        main.log.report( description )
+        main.case( description )
 
+        main.step( "Kill Link between s3 and s28" )
+        LinkDown = main.Mininet1.link( END1="s3", END2="s28", OPTION="down" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link down to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkDown,
+                                onpass="Link down succesful",
+                                onfail="Failed to bring link down" )
+        # TODO do some sort of check here
 
-        main.step("Kill Link between s3 and s28")
-        Link_Down = main.Mininet1.link(END1="s3",END2="s28",OPTION="down")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link down to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Down,
-                onpass="Link down succesful",
-                onfail="Failed to bring link down")
-        #TODO do some sort of check here
-
-    def CASE10 (self,main):
-        '''
+    def CASE10( self, main ):
+        """
         Link s3-s28 up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Restore a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Restore a link to ensure that Link Discovery is " + \
+            "working properly"
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Bring link between s3 and s28 back up")
-        Link_Up = main.Mininet1.link(END1="s3",END2="s28",OPTION="up")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link up to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Up,
-                onpass="Link up succesful",
-                onfail="Failed to bring link up")
-        #TODO do some sort of check here
+        main.step( "Bring link between s3 and s28 back up" )
+        LinkUp = main.Mininet1.link( END1="s3", END2="s28", OPTION="up" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link up to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkUp,
+                                onpass="Link up succesful",
+                                onfail="Failed to bring link up" )
+        # TODO do some sort of check here
 
-
-    def CASE11 (self, main) :
-        '''
+    def CASE11( self, main ):
+        """
         Switch Down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
 
         description = "Killing a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
 
-        #TODO: Make this switch parameterizable
-        main.step("Kill s28 ")
-        main.log.report("Deleting s28")
-        main.Mininet1.del_switch("s28")
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch down to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        # TODO: Make this switch parameterizable
+        main.step( "Kill " + switch )
+        main.log.report( "Deleting " + switch )
+        main.Mininet1.delSwitch( switch )
+        main.log.info( "Waiting " + str( switchSleep ) +
+                       " seconds for switch down to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == False:
+        if device and device[ 'available' ] is False:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Kill switch succesful",
-                onfail="Failed to kill switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Kill switch succesful",
+                                onfail="Failed to kill switch?" )
 
-    def CASE12 (self, main) :
-        '''
+    def CASE12( self, main ):
+        """
         Switch Up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
+        links = main.params[ 'kill' ][ 'links' ].split()
         description = "Adding a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Add back s28")
-        main.log.report("Adding back s28")
-        main.Mininet1.add_switch("s28", dpid = '0000000000002800')
-        #TODO: New dpid or same? Ask Thomas?
-        main.Mininet1.add_link('s28', 's3')
-        main.Mininet1.add_link('s28', 's6')
-        main.Mininet1.add_link('s28', 'h28')
-        main.Mininet1.assign_sw_controller(sw="28",count=num_controllers,
-                ip1=ONOS1_ip,port1=ONOS1_port,
-                ip2=ONOS2_ip,port2=ONOS2_port,
-                ip3=ONOS3_ip,port3=ONOS3_port,
-                ip4=ONOS4_ip,port4=ONOS4_port,
-                ip5=ONOS5_ip,port5=ONOS5_port,
-                ip6=ONOS6_ip,port6=ONOS6_port,
-                ip7=ONOS7_ip,port7=ONOS7_port)
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch up to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        main.step( "Add back " + switch )
+        main.log.report( "Adding back " + switch )
+        main.Mininet1.addSwitch( switch, dpid=switchDPID )
+        # TODO: New dpid or same? Ask Thomas?
+        for peer in links:
+            main.Mininet1.addLink( switch, peer )
+        main.Mininet1.assignSwController(
+            sw=switch.split( 's' )[ 1 ],
+            count=numControllers,
+            ip1=ONOS1Ip,
+            port1=ONOS1Port,
+            ip2=ONOS2Ip,
+            port2=ONOS2Port,
+            ip3=ONOS3Ip,
+            port3=ONOS3Port,
+            ip4=ONOS4Ip,
+            port4=ONOS4Port,
+            ip5=ONOS5Ip,
+            port5=ONOS5Port,
+            ip6=ONOS6Ip,
+            port6=ONOS6Port,
+            ip7=ONOS7Ip,
+            port7=ONOS7Port )
+        main.log.info(
+            "Waiting " +
+            str( switchSleep ) +
+            " seconds for switch up to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == True:
+        if device and device[ 'available' ]:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="add switch succesful",
-                onfail="Failed to add switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="add switch succesful",
+                                onfail="Failed to add switch?" )
 
-    def CASE13 (self, main) :
-        '''
+    def CASE13( self, main ):
+        """
         Clean up
-        '''
+        """
         import os
         import time
-        #printing colors to terminal
+        # TODO: make use of this elsewhere
+        ips = []
+        ips.append( ONOS1Ip )
+        ips.append( ONOS2Ip )
+        ips.append( ONOS3Ip )
+        ips.append( ONOS4Ip )
+        ips.append( ONOS5Ip )
+        ips.append( ONOS6Ip )
+        ips.append( ONOS7Ip )
+
+        # printing colors to terminal
         colors = {}
-        colors['cyan']   = '\033[96m'
-        colors['purple'] = '\033[95m'
-        colors['blue']   = '\033[94m'
-        colors['green']  = '\033[92m'
-        colors['yellow'] = '\033[93m'
-        colors['red']    = '\033[91m'
-        colors['end']    = '\033[0m'
+        colors[ 'cyan' ] = '\033[96m'
+        colors[ 'purple' ] = '\033[95m'
+        colors[ 'blue' ] = '\033[94m'
+        colors[ 'green' ] = '\033[92m'
+        colors[ 'yellow' ] = '\033[93m'
+        colors[ 'red' ] = '\033[91m'
+        colors[ 'end' ] = '\033[0m'
         description = "Test Cleanup"
-        main.log.report(description)
-        main.case(description)
-        main.step("Killing tcpdumps")
-        main.Mininet2.stop_tcpdump()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Killing tcpdumps" )
+        main.Mininet2.stopTcpdump()
 
-        main.step("Checking ONOS Logs for errors")
-        print colors['purple'] + "Checking logs for errors on ONOS1:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS1_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS2:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS2_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS3:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS3_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS4:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS4_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS5:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS5_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS6:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS6_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS7:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS7_ip)
+        main.step( "Checking ONOS Logs for errors" )
+        for i in range( 7 ):
+            print colors[ 'purple' ] + "Checking logs for errors on " + \
+                "ONOS" + str( i + 1 ) + ":" + colors[ 'end' ]
+            print main.ONOSbench.checkLogs( ips[ i ] )
 
-        main.step("Copying MN pcap and ONOS log files to test station")
+        main.step( "Copying MN pcap and ONOS log files to test station" )
         testname = main.TEST
-        teststation_user = main.params['TESTONUSER']
-        teststation_IP = main.params['TESTONIP']
-        #NOTE: MN Pcap file is being saved to ~/packet_captures
+        teststationUser = main.params[ 'TESTONUSER' ]
+        teststationIP = main.params[ 'TESTONIP' ]
+        # NOTE: MN Pcap file is being saved to ~/packet_captures
         #       scp this file as MN and TestON aren't necessarily the same vm
-        #FIXME: scp
-        #####mn files
-        #TODO: Load these from params
-        #NOTE: must end in /
-        log_folder = "/opt/onos/log/"
-        log_files = ["karaf.log", "karaf.log.1"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS2_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS2-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS3_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS3-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS4_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS4-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS5_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS5-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS6_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS6-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS7_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS7-"+f )
+        # FIXME: scp
+        # mn files
+        # TODO: Load these from params
+        # NOTE: must end in /
+        logFolder = "/opt/onos/log/"
+        logFiles = [ "karaf.log", "karaf.log.1" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            for i in range( 7 ):
+                main.ONOSbench.handle.sendline( "scp sdn@" + ips[ i ] + ":" +
+                                                logFolder + f + " " +
+                                                teststationUser + "@" +
+                                                teststationIP + ":" +
+                                                dstDir + str( testname ) +
+                                                "-ONOS" + str( i + 1 ) + "-" +
+                                                f )
+        # std*.log's
+        # NOTE: must end in /
+        logFolder = "/opt/onos/var/"
+        logFiles = [ "stderr.log", "stdout.log" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            for i in range( 7 ):
+                main.ONOSbench.handle.sendline( "scp sdn@" + ips[ i ] + ":" +
+                                                logFolder + f + " " +
+                                                teststationUser + "@" +
+                                                teststationIP + ":" +
+                                                dstDir + str( testname ) +
+                                                "-ONOS" + str( i + 1 ) + "-" +
+                                                f )
+        # sleep so scp can finish
+        time.sleep( 10 )
+        main.step( "Packing and rotating pcap archives" )
+        os.system( "~/TestON/dependencies/rotate.sh " + str( testname ) )
 
-        #std*.log's
-        #NOTE: must end in /
-        log_folder = "/opt/onos/var/"
-        log_files = ["stderr.log", "stdout.log"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS2_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS2-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS3_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS3-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS4_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS4-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS5_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS5-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS6_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS6-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS7_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS7-"+f )
+        # TODO: actually check something here
+        utilities.assert_equals( expect=main.TRUE, actual=main.TRUE,
+                                onpass="Test cleanup successful",
+                                onfail="Test cleanup NOT successful" )
 
-
-        #sleep so scp can finish
-        time.sleep(10)
-        main.step("Packing and rotating pcap archives")
-        os.system("~/TestON/dependencies/rotate.sh "+ str(testname))
-
-
-        #TODO: actually check something here
-        utilities.assert_equals(expect=main.TRUE, actual=main.TRUE,
-                onpass="Test cleanup successful",
-                onfail="Test cleanup NOT successful")
-
-    def CASE14 ( self, main ) :
-        '''
+    def CASE14( self, main ):
+        """
         start election app on all onos nodes
-        '''
-        leader_result = main.TRUE
-        #install app on onos 1
-        main.log.info("Install leadership election app")
-        main.ONOScli1.feature_install("onos-app-election")
-        #wait for election
-        #check for leader
-        leader = main.ONOScli1.election_test_leader()
-        #verify leader is ONOS1
-        if leader == ONOS1_ip:
-            #all is well
+        """
+        leaderResult = main.TRUE
+        # install app on onos 1
+        main.log.info( "Install leadership election app" )
+        main.ONOScli1.featureInstall( "onos-app-election" )
+        # wait for election
+        # check for leader
+        leader = main.ONOScli1.electionTestLeader()
+        # verify leader is ONOS1
+        if leader == ONOS1Ip:
+            # all is well
             pass
-        elif leader == None:
-            #No leader elected
-            main.log.report("No leader was elected")
-            leader_result = main.FALSE
+        elif leader is None:
+            # No leader elected
+            main.log.report( "No leader was elected" )
+            leaderResult = main.FALSE
         elif leader == main.FALSE:
-            #error in  response
-            #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-            main.log.report("Something is wrong with election_test_leader function, check the error logs")
-            leader_result = main.FALSE
+            # error in  response
+            # TODO: add check for "Command not found:" in the driver, this
+            # means the app isn't loaded
+            main.log.report( "Something is wrong with electionTestLeader" +
+                             " function, check the error logs" )
+            leaderResult = main.FALSE
         else:
-            #error in  response
-            main.log.report("Unexpected response from election_test_leader function:'"+str(leader)+"'")
-            leader_result = main.FALSE
+            # error in  response
+            main.log.report(
+                "Unexpected response from electionTestLeader function:'" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
 
-
-
-
-        #install on other nodes and check for leader.
-        #Should be onos1 and each app should show the same leader
-        for controller in range(2,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            node.feature_install("onos-app-election")
-            leaderN = node.election_test_leader()
-            #verify leader is ONOS1
-            if leaderN == ONOS1_ip:
-                #all is well
+        # install on other nodes and check for leader.
+        # Should be onos1 and each app should show the same leader
+        for controller in range( 2, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            node.featureInstall( "onos-app-election" )
+            leaderN = node.electionTestLeader()
+            # verify leader is ONOS1
+            if leaderN == ONOS1Ip:
+                # all is well
                 pass
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
             elif leader != leaderN:
-                leader_result = main.FALSE
-                main.log.report("ONOS" + str(controller) + " sees "+str(leaderN) +
-                        " as the leader of the election app. Leader should be "+str(leader) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a leader was elected)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                leaderResult = main.FALSE
+                main.log.report( "ONOS" + str( controller ) + " sees " +
+                                 str( leaderN ) +
+                                 " as the leader of the election app. Leader" +
+                                 " should be " +
+                                 str( leader ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a leader " +
+                             "was elected )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-    def CASE15 ( self, main ) :
-        '''
+    def CASE15( self, main ):
+        """
         Check that Leadership Election is still functional
-        '''
-        leader_result = main.TRUE
+        """
+        leaderResult = main.TRUE
         description = "Check that Leadership Election is still functional"
-        main.log.report(description)
-        main.case(description)
-        main.step("Find current leader and withdraw")
-        leader = main.ONOScli1.election_test_leader()
-        #TODO: do some sanity checking on leader before using it
-        withdraw_result = main.FALSE
-        if leader == ONOS1_ip:
-            old_leader = getattr( main, "ONOScli1" )
-        elif leader == ONOS2_ip:
-            old_leader = getattr( main, "ONOScli2" )
-        elif leader == ONOS3_ip:
-            old_leader = getattr( main, "ONOScli3" )
-        elif leader == ONOS4_ip:
-            old_leader = getattr( main, "ONOScli4" )
-        elif leader == ONOS5_ip:
-            old_leader = getattr( main, "ONOScli5" )
-        elif leader == ONOS6_ip:
-            old_leader = getattr( main, "ONOScli6" )
-        elif leader == ONOS7_ip:
-            old_leader = getattr( main, "ONOScli7" )
-        elif leader == None or leader == main.FALSE:
-            main.log.report("Leader for the election app should be an ONOS node,"\
-                    +"instead got '"+str(leader)+"'")
-            leader_result = main.FALSE
-        withdraw_result = old_leader.election_test_withdraw()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Find current leader and withdraw" )
+        leader = main.ONOScli1.electionTestLeader()
+        # TODO: do some sanity checking on leader before using it
+        withdrawResult = main.FALSE
+        if leader == ONOS1Ip:
+            oldLeader = getattr( main, "ONOScli1" )
+        elif leader == ONOS2Ip:
+            oldLeader = getattr( main, "ONOScli2" )
+        elif leader == ONOS3Ip:
+            oldLeader = getattr( main, "ONOScli3" )
+        elif leader == ONOS4Ip:
+            oldLeader = getattr( main, "ONOScli4" )
+        elif leader == ONOS5Ip:
+            oldLeader = getattr( main, "ONOScli5" )
+        elif leader == ONOS6Ip:
+            oldLeader = getattr( main, "ONOScli6" )
+        elif leader == ONOS7Ip:
+            oldLeader = getattr( main, "ONOScli7" )
+        elif leader is None or leader == main.FALSE:
+            main.log.report(
+                "Leader for the election app should be an ONOS node," +
+                "instead got '" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
+        withdrawResult = oldLeader.electionTestWithdraw()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=withdrawResult,
+            onpass="App was withdrawn from election",
+            onfail="App was not withdrawn from election" )
 
-
-        main.step("Make sure new leader is elected")
-        leader_list = []
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leader_list.append( node.election_test_leader() )
-        for leaderN in leader_list:
+        main.step( "Make sure new leader is elected" )
+        leaderList = []
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderList.append( node.electionTestLeader() )
+        for leaderN in leaderList:
             if leaderN == leader:
-                main.log.report("ONOS"+str(controller)+" still sees " + str(leader) +\
-                        " as leader after they withdrew")
-                leader_result = main.FALSE
+                main.log.report(
+                    "ONOS" +
+                    str( controller ) +
+                    " still sees " +
+                    str( leader ) +
+                    " as leader after they withdrew" )
+                leaderResult = main.FALSE
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
-        consistent_leader = main.FALSE
-        if len( set( leader_list ) ) == 1:
-            main.log.info("Each Election-app sees '"+str(leader_list[0])+"' as the leader")
-            consistent_leader = main.TRUE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, " +
+                                 "check the error logs" )
+                leaderResult = main.FALSE
+        consistentLeader = main.FALSE
+        if len( set( leaderList ) ) == 1:
+            main.log.info( "Each Election-app sees '" +
+                           str( leaderList[ 0 ] ) +
+                           "' as the leader" )
+            consistentLeader = main.TRUE
         else:
-            main.log.report("Inconsistent responses for leader of Election-app:")
-            for n in range(len(leader_list)):
-                main.log.report("ONOS" + str(n+1) + " response: " + str(leader_list[n]) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was elected when the old leader resigned)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+            main.log.report(
+                "Inconsistent responses for leader of Election-app:" )
+            for n in range( len( leaderList ) ):
+                main.log.report( "ONOS" + str( n + 1 ) + " response: " +
+                                 str( leaderList[ n ] ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was elected when the old leader " +
+                             "resigned )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        main.step("Run for election on old leader(just so everyone is in the hat)")
-        run_result = old_leader.election_test_run()
-        if consistent_leader == main.TRUE:
-            after_run = main.ONOScli1.election_test_leader()
-            #verify leader didn't just change
-            if after_run == leader_list[0]:
-                leader_result = main.TRUE
+        main.step(
+            "Run for election on old leader( just so everyone is in the hat )" )
+        runResult = oldLeader.electionTestRun()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=runResult,
+            onpass="App re-ran for election",
+            onfail="App failed to run for election" )
+        if consistentLeader == main.TRUE:
+            afterRun = main.ONOScli1.electionTestLeader()
+            # verify leader didn't just change
+            if afterRun == leaderList[ 0 ]:
+                leaderResult = main.TRUE
             else:
-                leader_result = main.FALSE
-        #TODO: assert on  run and withdraw results?
+                leaderResult = main.FALSE
+        # TODO: assert on  run and withdraw results?
 
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election after the old leader re-ran for election")
-
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election after " +
+                   "the old leader re-ran for election" )
diff --git a/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.params b/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.params
index 78e0c83..cf0ca61 100644
--- a/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.params
+++ b/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.params
@@ -56,6 +56,11 @@
         <LinkDiscovery>.2</LinkDiscovery>
         <SwitchDiscovery>.2</SwitchDiscovery>
     </timers>
+    <kill>
+        <switch> s5 </switch>
+        <dpid> 0000000000005000 </dpid>
+        <links> h5 s2 s1 s6 </links>
+    </kill>
     <MNtcpdump>
         <intf>eth0</intf>
         <port> </port>
diff --git a/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.py b/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.py
index b9d2925..7517827 100644
--- a/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.py
+++ b/TestON/tests/HATestMinorityRestart/HATestMinorityRestart.py
@@ -1,4 +1,4 @@
-'''
+"""
 Description: This test is to determine if ONOS can handle
     a minority of it's nodes restarting
 
@@ -18,14 +18,16 @@
 CASE13: Clean up
 CASE14: start election app on all onos nodes
 CASE15: Check that Leadership Election is still functional
-'''
+"""
+
+
 class HATestMinorityRestart:
 
-    def __init__(self) :
+    def __init__( self ):
         self.default = ''
 
-    def CASE1(self,main) :
-        '''
+    def CASE1( self, main ):
+        """
         CASE1 is to compile ONOS and push it to the test machines
 
         Startup sequence:
@@ -37,775 +39,849 @@
         NOTE: temporary - onos-remove-raft-logs
         onos-install -f
         onos-wait-for-start
-        '''
-        import time
-        main.log.report("ONOS HA test: Restart minority of ONOS nodes - initialization")
-        main.case("Setting up test environment")
+        """
+        main.log.report(
+            "ONOS HA test: Restart minority of ONOS nodes - initialization" )
+        main.case( "Setting up test environment" )
+        # TODO: save all the timers and output them for plotting
 
         # load some vairables from the params file
-        PULL_CODE = False
-        if main.params['Git'] == 'True':
-            PULL_CODE = True
-        cell_name = main.params['ENV']['cellName']
+        PULLCODE = False
+        if main.params[ 'Git' ] == 'True':
+            PULLCODE = True
 
-        #set global variables
-        global ONOS1_ip
-        global ONOS1_port
-        global ONOS2_ip
-        global ONOS2_port
-        global ONOS3_ip
-        global ONOS3_port
-        global ONOS4_ip
-        global ONOS4_port
-        global ONOS5_ip
-        global ONOS5_port
-        global ONOS6_ip
-        global ONOS6_port
-        global ONOS7_ip
-        global ONOS7_port
-        global num_controllers
+        cellName = main.params[ 'ENV' ][ 'cellName' ]
 
-        ONOS1_ip = main.params['CTRL']['ip1']
-        ONOS1_port = main.params['CTRL']['port1']
-        ONOS2_ip = main.params['CTRL']['ip2']
-        ONOS2_port = main.params['CTRL']['port2']
-        ONOS3_ip = main.params['CTRL']['ip3']
-        ONOS3_port = main.params['CTRL']['port3']
-        ONOS4_ip = main.params['CTRL']['ip4']
-        ONOS4_port = main.params['CTRL']['port4']
-        ONOS5_ip = main.params['CTRL']['ip5']
-        ONOS5_port = main.params['CTRL']['port5']
-        ONOS6_ip = main.params['CTRL']['ip6']
-        ONOS6_port = main.params['CTRL']['port6']
-        ONOS7_ip = main.params['CTRL']['ip7']
-        ONOS7_port = main.params['CTRL']['port7']
-        num_controllers = int(main.params['num_controllers'])
+        # set global variables
+        global ONOS1Ip
+        global ONOS1Port
+        global ONOS2Ip
+        global ONOS2Port
+        global ONOS3Ip
+        global ONOS3Port
+        global ONOS4Ip
+        global ONOS4Port
+        global ONOS5Ip
+        global ONOS5Port
+        global ONOS6Ip
+        global ONOS6Port
+        global ONOS7Ip
+        global ONOS7Port
+        global numControllers
 
+        ONOS1Ip = main.params[ 'CTRL' ][ 'ip1' ]
+        ONOS1Port = main.params[ 'CTRL' ][ 'port1' ]
+        ONOS2Ip = main.params[ 'CTRL' ][ 'ip2' ]
+        ONOS2Port = main.params[ 'CTRL' ][ 'port2' ]
+        ONOS3Ip = main.params[ 'CTRL' ][ 'ip3' ]
+        ONOS3Port = main.params[ 'CTRL' ][ 'port3' ]
+        ONOS4Ip = main.params[ 'CTRL' ][ 'ip4' ]
+        ONOS4Port = main.params[ 'CTRL' ][ 'port4' ]
+        ONOS5Ip = main.params[ 'CTRL' ][ 'ip5' ]
+        ONOS5Port = main.params[ 'CTRL' ][ 'port5' ]
+        ONOS6Ip = main.params[ 'CTRL' ][ 'ip6' ]
+        ONOS6Port = main.params[ 'CTRL' ][ 'port6' ]
+        ONOS7Ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS7Port = main.params[ 'CTRL' ][ 'port7' ]
+        numControllers = int( main.params[ 'num_controllers' ] )
 
-        main.step("Applying cell variable to environment")
-        cell_result = main.ONOSbench.set_cell(cell_name)
-        verify_result = main.ONOSbench.verify_cell()
+        main.step( "Applying cell variable to environment" )
+        cellResult = main.ONOSbench.setCell( cellName )
+        verifyResult = main.ONOSbench.verifyCell()
 
-        #FIXME:this is short term fix
-        main.log.report("Removing raft logs")
-        main.ONOSbench.onos_remove_raft_logs()
-        main.log.report("Uninstalling ONOS")
-        main.ONOSbench.onos_uninstall(ONOS1_ip)
-        main.ONOSbench.onos_uninstall(ONOS2_ip)
-        main.ONOSbench.onos_uninstall(ONOS3_ip)
-        main.ONOSbench.onos_uninstall(ONOS4_ip)
-        main.ONOSbench.onos_uninstall(ONOS5_ip)
-        main.ONOSbench.onos_uninstall(ONOS6_ip)
-        main.ONOSbench.onos_uninstall(ONOS7_ip)
+        # FIXME:this is short term fix
+        main.log.report( "Removing raft logs" )
+        main.ONOSbench.onosRemoveRaftLogs()
+        main.log.report( "Uninstalling ONOS" )
+        main.ONOSbench.onosUninstall( ONOS1Ip )
+        main.ONOSbench.onosUninstall( ONOS2Ip )
+        main.ONOSbench.onosUninstall( ONOS3Ip )
+        main.ONOSbench.onosUninstall( ONOS4Ip )
+        main.ONOSbench.onosUninstall( ONOS5Ip )
+        main.ONOSbench.onosUninstall( ONOS6Ip )
+        main.ONOSbench.onosUninstall( ONOS7Ip )
 
-        clean_install_result = main.TRUE
-        git_pull_result = main.TRUE
+        cleanInstallResult = main.TRUE
+        gitPullResult = main.TRUE
 
-        main.step("Compiling the latest version of ONOS")
-        if PULL_CODE:
-            main.step("Git checkout and pull master")
-            main.ONOSbench.git_checkout("master")
-            git_pull_result = main.ONOSbench.git_pull()
+        main.step( "Compiling the latest version of ONOS" )
+        if PULLCODE:
+            # TODO Configure branch in params
+            main.step( "Git checkout and pull master" )
+            main.ONOSbench.gitCheckout( "master" )
+            gitPullResult = main.ONOSbench.gitPull()
 
-            main.step("Using mvn clean & install")
-            clean_install_result = main.TRUE
-            if git_pull_result == main.TRUE:
-                clean_install_result = main.ONOSbench.clean_install()
+            main.step( "Using mvn clean & install" )
+            cleanInstallResult = main.TRUE
+
+            if gitPullResult == main.TRUE:
+                cleanInstallResult = main.ONOSbench.cleanInstall()
             else:
-                main.log.warn("Did not pull new code so skipping mvn "+ \
-                        "clean install")
-        main.ONOSbench.get_version(report=True)
+                main.log.warn( "Did not pull new code so skipping mvn " +
+                               "clean install" )
+        main.ONOSbench.getVersion( report=True )
 
-        main.step("Creating ONOS package")
-        package_result = main.ONOSbench.onos_package()
+        main.step( "Creating ONOS package" )
+        packageResult = main.ONOSbench.onosPackage()
 
-        main.step("Installing ONOS package")
-        onos1_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS1_ip)
-        onos2_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS2_ip)
-        onos3_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS3_ip)
-        onos4_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS4_ip)
-        onos5_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS5_ip)
-        onos6_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS6_ip)
-        onos7_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS7_ip)
-        onos_install_result = onos1_install_result and onos2_install_result\
-                and onos3_install_result and onos4_install_result\
-                and onos5_install_result and onos6_install_result\
-                and onos7_install_result
-        '''
-        #FIXME: work around until onos is less fragile
-        main.ONOSbench.handle.sendline("onos-cluster-install")
-        print main.ONOSbench.handle.expect("\$")
-        onos_install_result = main.TRUE
-        '''
+        main.step( "Installing ONOS package" )
+        onos1InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS1Ip )
+        onos2InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS2Ip )
+        onos3InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS3Ip )
+        onos4InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS4Ip )
+        onos5InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS5Ip )
+        onos6InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS6Ip )
+        onos7InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS7Ip )
+        onosInstallResult = onos1InstallResult and onos2InstallResult\
+            and onos3InstallResult and onos4InstallResult\
+            and onos5InstallResult and onos6InstallResult\
+            and onos7InstallResult
 
-
-        main.step("Checking if ONOS is up yet")
-        #TODO check bundle:list?
-        for i in range(2):
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            if not onos1_isup:
-                main.log.report("ONOS1 didn't start!")
-            onos2_isup = main.ONOSbench.isup(ONOS2_ip)
-            if not onos2_isup:
-                main.log.report("ONOS2 didn't start!")
-            onos3_isup = main.ONOSbench.isup(ONOS3_ip)
-            if not onos3_isup:
-                main.log.report("ONOS3 didn't start!")
-            onos4_isup = main.ONOSbench.isup(ONOS4_ip)
-            if not onos4_isup:
-                main.log.report("ONOS4 didn't start!")
-            onos5_isup = main.ONOSbench.isup(ONOS5_ip)
-            if not onos5_isup:
-                main.log.report("ONOS5 didn't start!")
-            onos6_isup = main.ONOSbench.isup(ONOS6_ip)
-            if not onos6_isup:
-                main.log.report("ONOS6 didn't start!")
-            onos7_isup = main.ONOSbench.isup(ONOS7_ip)
-            if not onos7_isup:
-                main.log.report("ONOS7 didn't start!")
-            onos_isup_result = onos1_isup and onos2_isup and onos3_isup\
-                    and onos4_isup and onos5_isup and onos6_isup and onos7_isup
-            if onos_isup_result == main.TRUE:
+        main.step( "Checking if ONOS is up yet" )
+        # TODO check bundle:list?
+        for i in range( 2 ):
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            if not onos1Isup:
+                main.log.report( "ONOS1 didn't start!" )
+            onos2Isup = main.ONOSbench.isup( ONOS2Ip )
+            if not onos2Isup:
+                main.log.report( "ONOS2 didn't start!" )
+            onos3Isup = main.ONOSbench.isup( ONOS3Ip )
+            if not onos3Isup:
+                main.log.report( "ONOS3 didn't start!" )
+            onos4Isup = main.ONOSbench.isup( ONOS4Ip )
+            if not onos4Isup:
+                main.log.report( "ONOS4 didn't start!" )
+            onos5Isup = main.ONOSbench.isup( ONOS5Ip )
+            if not onos5Isup:
+                main.log.report( "ONOS5 didn't start!" )
+            onos6Isup = main.ONOSbench.isup( ONOS6Ip )
+            if not onos6Isup:
+                main.log.report( "ONOS6 didn't start!" )
+            onos7Isup = main.ONOSbench.isup( ONOS7Ip )
+            if not onos7Isup:
+                main.log.report( "ONOS7 didn't start!" )
+            onosIsupResult = onos1Isup and onos2Isup and onos3Isup\
+                and onos4Isup and onos5Isup and onos6Isup and onos7Isup
+            if onosIsupResult == main.TRUE:
                 break
-        # TODO: if it becomes an issue, we can retry this step  a few times
 
+        cliResult1 = main.ONOScli1.startOnosCli( ONOS1Ip )
+        cliResult2 = main.ONOScli2.startOnosCli( ONOS2Ip )
+        cliResult3 = main.ONOScli3.startOnosCli( ONOS3Ip )
+        cliResult4 = main.ONOScli4.startOnosCli( ONOS4Ip )
+        cliResult5 = main.ONOScli5.startOnosCli( ONOS5Ip )
+        cliResult6 = main.ONOScli6.startOnosCli( ONOS6Ip )
+        cliResult7 = main.ONOScli7.startOnosCli( ONOS7Ip )
+        cliResults = cliResult1 and cliResult2 and cliResult3 and\
+            cliResult4 and cliResult5 and cliResult6 and cliResult7
 
-        cli_result1 = main.ONOScli1.start_onos_cli(ONOS1_ip)
-        cli_result2 = main.ONOScli2.start_onos_cli(ONOS2_ip)
-        cli_result3 = main.ONOScli3.start_onos_cli(ONOS3_ip)
-        cli_result4 = main.ONOScli4.start_onos_cli(ONOS4_ip)
-        cli_result5 = main.ONOScli5.start_onos_cli(ONOS5_ip)
-        cli_result6 = main.ONOScli6.start_onos_cli(ONOS6_ip)
-        cli_result7 = main.ONOScli7.start_onos_cli(ONOS7_ip)
-        cli_results = cli_result1 and cli_result2 and cli_result3 and\
-                cli_result4 and cli_result5 and cli_result6 and cli_result7
+        main.step( "Start Packet Capture MN" )
+        main.Mininet2.startTcpdump(
+            str( main.params[ 'MNtcpdump' ][ 'folder' ] ) + str( main.TEST )
+            + "-MN.pcap",
+            intf=main.params[ 'MNtcpdump' ][ 'intf' ],
+            port=main.params[ 'MNtcpdump' ][ 'port' ] )
 
+        case1Result = ( cleanInstallResult and packageResult and
+                        cellResult and verifyResult and onosInstallResult
+                        and onosIsupResult and cliResults )
 
-        main.step("Start Packet Capture MN")
-        main.Mininet2.start_tcpdump(
-                str(main.params['MNtcpdump']['folder'])+str(main.TEST)+"-MN.pcap",
-                intf = main.params['MNtcpdump']['intf'],
-                port = main.params['MNtcpdump']['port'])
+        utilities.assert_equals( expect=main.TRUE, actual=case1Result,
+                                onpass="Test startup successful",
+                                onfail="Test startup NOT successful" )
 
-
-        case1_result = (clean_install_result and package_result and
-                cell_result and verify_result and onos_install_result and
-                onos_isup_result and cli_results)
-
-        utilities.assert_equals(expect=main.TRUE, actual=case1_result,
-                onpass="Test startup successful",
-                onfail="Test startup NOT successful")
-
-
-        if case1_result==main.FALSE:
+        if case1Result == main.FALSE:
             main.cleanup()
             main.exit()
 
-    def CASE2(self,main) :
-        '''
+    def CASE2( self, main ):
+        """
         Assign mastership to controllers
-        '''
-        import time
-        import json
+        """
         import re
 
-        main.log.report("Assigning switches to controllers")
-        main.case("Assigning Controllers")
-        main.step("Assign switches to controllers")
+        main.log.report( "Assigning switches to controllers" )
+        main.case( "Assigning Controllers" )
+        main.step( "Assign switches to controllers" )
 
-        for i in range (1,29):
-           main.Mininet1.assign_sw_controller(sw=str(i),count=num_controllers,
-                    ip1=ONOS1_ip,port1=ONOS1_port,
-                    ip2=ONOS2_ip,port2=ONOS2_port,
-                    ip3=ONOS3_ip,port3=ONOS3_port,
-                    ip4=ONOS4_ip,port4=ONOS4_port,
-                    ip5=ONOS5_ip,port5=ONOS5_port,
-                    ip6=ONOS6_ip,port6=ONOS6_port,
-                    ip7=ONOS7_ip,port7=ONOS7_port)
+        for i in range( 1, 29 ):
+            main.Mininet1.assignSwController(
+                sw=str( i ),
+                count=numControllers,
+                ip1=ONOS1Ip, port1=ONOS1Port,
+                ip2=ONOS2Ip, port2=ONOS2Port,
+                ip3=ONOS3Ip, port3=ONOS3Port,
+                ip4=ONOS4Ip, port4=ONOS4Port,
+                ip5=ONOS5Ip, port5=ONOS5Port,
+                ip6=ONOS6Ip, port6=ONOS6Port,
+                ip7=ONOS7Ip, port7=ONOS7Port )
 
-        mastership_check = main.TRUE
-        for i in range (1,29):
-            response = main.Mininet1.get_sw_controller("s"+str(i))
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            response = main.Mininet1.getSwController( "s" + str( i ) )
             try:
-                main.log.info(str(response))
+                main.log.info( str( response ) )
             except:
-                main.log.info(repr(response))
-            if re.search("tcp:"+ONOS1_ip,response)\
-                    and re.search("tcp:"+ONOS2_ip,response)\
-                    and re.search("tcp:"+ONOS3_ip,response)\
-                    and re.search("tcp:"+ONOS4_ip,response)\
-                    and re.search("tcp:"+ONOS5_ip,response)\
-                    and re.search("tcp:"+ONOS6_ip,response)\
-                    and re.search("tcp:"+ONOS7_ip,response):
-                mastership_check = mastership_check and main.TRUE
+                main.log.info( repr( response ) )
+            if re.search( "tcp:" + ONOS1Ip, response )\
+                    and re.search( "tcp:" + ONOS2Ip, response )\
+                    and re.search( "tcp:" + ONOS3Ip, response )\
+                    and re.search( "tcp:" + ONOS4Ip, response )\
+                    and re.search( "tcp:" + ONOS5Ip, response )\
+                    and re.search( "tcp:" + ONOS6Ip, response )\
+                    and re.search( "tcp:" + ONOS7Ip, response ):
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Switch mastership assigned correctly")
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership assigned correctly",
-                onfail="Switches not assigned correctly to controllers")
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Switch mastership assigned correctly" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Switch mastership assigned correctly",
+            onfail="Switches not assigned correctly to controllers" )
 
-        #Manually assign mastership to the controller we want
-        role_call = main.TRUE
-        role_check = main.TRUE
+        # Manually assign mastership to the controller we want
+        roleCall = main.TRUE
+        roleCheck = main.TRUE
 
-        device_id = main.ONOScli1.get_device("1000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS1_ip)
-        if ONOS1_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "1000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS1Ip )
+        # Check assignment
+        if ONOS1Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("2800")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS1_ip)
-        if ONOS1_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "2800" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS1Ip )
+        # Check assignment
+        if ONOS1Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("2000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS2_ip)
-        if ONOS2_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "2000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS2Ip )
+        # Check assignment
+        if ONOS2Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS2_ip)
-        if ONOS2_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "3000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS2Ip )
+        # Check assignment
+        if ONOS2Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("5000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS3_ip)
-        if ONOS3_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "5000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS3Ip )
+        # Check assignment
+        if ONOS3Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("6000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS3_ip)
-        if ONOS3_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "6000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS3Ip )
+        # Check assignment
+        if ONOS3Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id =  main.ONOScli1.get_device("3004")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS4_ip)
-        if ONOS4_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "3004" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS4Ip )
+        # Check assignment
+        if ONOS4Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3008")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        for i in range( 8, 18 ):
+            dpid = '3' + str( i ).zfill( 3 )
+            deviceId = main.ONOScli1.getDevice( dpid ).get( 'id' )
+            roleCall = roleCall and main.ONOScli1.deviceRole(
+                deviceId,
+                ONOS5Ip )
+            # Check assignment
+            if ONOS5Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+                roleCheck = roleCheck and main.TRUE
+            else:
+                roleCheck = roleCheck and main.FALSE
+
+        deviceId = main.ONOScli1.getDevice( "6007" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS6Ip )
+        # Check assignment
+        if ONOS6Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3009")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        for i in range( 18, 28 ):
+            dpid = '6' + str( i ).zfill( 3 )
+            deviceId = main.ONOScli1.getDevice( dpid ).get( 'id' )
+            roleCall = roleCall and main.ONOScli1.deviceRole(
+                deviceId,
+                ONOS7Ip )
+            # Check assignment
+            if ONOS7Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+                roleCheck = roleCheck and main.TRUE
+            else:
+                roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3010")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=roleCall,
+            onpass="Re-assigned switch mastership to designated controller",
+            onfail="Something wrong with deviceRole calls" )
 
-        device_id = main.ONOScli1.get_device("3011")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=roleCheck,
+            onpass="Switches were successfully reassigned to designated " +
+                   "controller",
+            onfail="Switches were not successfully reassigned" )
+        mastershipCheck = mastershipCheck and roleCall and roleCheck
+        utilities.assert_equals( expect=main.TRUE, actual=mastershipCheck,
+                                onpass="Switch mastership correctly assigned",
+                                onfail="Error in ( re )assigning switch" +
+                                " mastership" )
 
-        device_id = main.ONOScli1.get_device("3012")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3013")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3014")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3015")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3016")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3017")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6007")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS6_ip)
-        if ONOS6_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6018")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6019")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6020")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6021")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6022")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6023")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6024")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6025")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6026")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6027")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        utilities.assert_equals(expect = main.TRUE,actual=role_call,
-                onpass="Re-assigned switch mastership to designated controller",
-                onfail="Something wrong with device_role calls")
-
-        utilities.assert_equals(expect = main.TRUE,actual=role_check,
-                onpass="Switches were successfully reassigned to designated controller",
-                onfail="Switches were not successfully reassigned")
-        mastership_check = mastership_check and role_call and role_check
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-
-
-    def CASE3(self,main) :
+    def CASE3( self, main ):
         """
         Assign intents
 
         """
         import time
-        import json
-        import re
-        main.log.report("Adding host intents")
-        main.case("Adding host Intents")
+        main.log.report( "Adding host intents" )
+        main.case( "Adding host Intents" )
 
-        main.step("Discovering  Hosts( Via pingall for now)")
-        #FIXME: Once we have a host discovery mechanism, use that instead
+        main.step( "Discovering  Hosts( Via pingall for now )" )
+        # FIXME: Once we have a host discovery mechanism, use that instead
 
-        #install onos-app-fwd
-        main.log.info("Install reactive forwarding app")
-        main.ONOScli1.feature_install("onos-app-fwd")
-        main.ONOScli2.feature_install("onos-app-fwd")
-        main.ONOScli3.feature_install("onos-app-fwd")
-        main.ONOScli4.feature_install("onos-app-fwd")
-        main.ONOScli5.feature_install("onos-app-fwd")
-        main.ONOScli6.feature_install("onos-app-fwd")
-        main.ONOScli7.feature_install("onos-app-fwd")
+        # install onos-app-fwd
+        main.log.info( "Install reactive forwarding app" )
+        main.ONOScli1.featureInstall( "onos-app-fwd" )
+        main.ONOScli2.featureInstall( "onos-app-fwd" )
+        main.ONOScli3.featureInstall( "onos-app-fwd" )
+        main.ONOScli4.featureInstall( "onos-app-fwd" )
+        main.ONOScli5.featureInstall( "onos-app-fwd" )
+        main.ONOScli6.featureInstall( "onos-app-fwd" )
+        main.ONOScli7.featureInstall( "onos-app-fwd" )
 
-        #REACTIVE FWD test
-        ping_result = main.FALSE
+        # REACTIVE FWD test
+        pingResult = main.FALSE
         time1 = time.time()
-        ping_result = main.Mininet1.pingall()
+        pingResult = main.Mininet1.pingall()
         time2 = time.time()
-        main.log.info("Time for pingall: %2f seconds" % (time2 - time1))
+        main.log.info( "Time for pingall: %2f seconds" % ( time2 - time1 ) )
 
-        #uninstall onos-app-fwd
-        main.log.info("Uninstall reactive forwarding app")
-        main.ONOScli1.feature_uninstall("onos-app-fwd")
-        main.ONOScli2.feature_uninstall("onos-app-fwd")
-        main.ONOScli3.feature_uninstall("onos-app-fwd")
-        main.ONOScli4.feature_uninstall("onos-app-fwd")
-        main.ONOScli5.feature_uninstall("onos-app-fwd")
-        main.ONOScli6.feature_uninstall("onos-app-fwd")
-        main.ONOScli7.feature_uninstall("onos-app-fwd")
-        #timeout for fwd flows
-        time.sleep(10)
+        # uninstall onos-app-fwd
+        main.log.info( "Uninstall reactive forwarding app" )
+        main.ONOScli1.featureUninstall( "onos-app-fwd" )
+        main.ONOScli2.featureUninstall( "onos-app-fwd" )
+        main.ONOScli3.featureUninstall( "onos-app-fwd" )
+        main.ONOScli4.featureUninstall( "onos-app-fwd" )
+        main.ONOScli5.featureUninstall( "onos-app-fwd" )
+        main.ONOScli6.featureUninstall( "onos-app-fwd" )
+        main.ONOScli7.featureUninstall( "onos-app-fwd" )
+        # timeout for fwd flows
+        time.sleep( 10 )
 
-        main.step("Add  host intents")
-        #TODO:  move the host numbers to params
-        import json
-        intents_json= json.loads(main.ONOScli1.hosts())
-        intent_add_result = True
-        for i in range(8,18):
-            main.log.info("Adding host intent between h"+str(i)+" and h"+str(i+10))
-            host1 =  "00:00:00:00:00:" + str(hex(i)[2:]).zfill(2).upper()
-            host2 =  "00:00:00:00:00:" + str(hex(i+10)[2:]).zfill(2).upper()
-            host1_id = main.ONOScli1.get_host(host1)['id']
-            host2_id = main.ONOScli1.get_host(host2)['id']
-            #NOTE: get host can return None
-            if host1_id and host2_id:
-                tmp_result = main.ONOScli1.add_host_intent(host1_id, host2_id )
+        main.step( "Add  host intents" )
+        # TODO:  move the host numbers to params
+        intentAddResult = True
+        for i in range( 8, 18 ):
+            main.log.info( "Adding host intent between h" + str( i ) +
+                           " and h" + str( i + 10 ) )
+            host1 = "00:00:00:00:00:" + \
+                str( hex( i )[ 2: ] ).zfill( 2 ).upper()
+            host2 = "00:00:00:00:00:" + \
+                str( hex( i + 10 )[ 2: ] ).zfill( 2 ).upper()
+            host1Id = main.ONOScli1.getHost( host1 )[ 'id' ]
+            host2Id = main.ONOScli1.getHost( host2 )[ 'id' ]
+            # NOTE: get host can return None
+            if host1Id and host2Id:
+                tmpResult = main.ONOScli1.addHostIntent(
+                    host1Id,
+                    host2Id )
             else:
-                main.log.error("Error, get_host() failed")
-                tmp_result = main.FALSE
-            intent_add_result = bool(intent_add_result and tmp_result)
-        utilities.assert_equals(expect=True, actual=intent_add_result,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-        #TODO Check if intents all exist in datastore
-        #NOTE: Do we need to print this once the test is working?
-        #main.log.info(json.dumps(json.loads(main.ONOScli1.intents(json_format=True)),
-        #    sort_keys=True, indent=4, separators=(',', ': ') ) )
+                main.log.error( "Error, getHost() failed" )
+                tmpResult = main.FALSE
+            intentAddResult = bool( pingResult and intentAddResult
+                                     and tmpResult )
+        utilities.assert_equals(
+            expect=True,
+            actual=intentAddResult,
+            onpass="Switch mastership correctly assigned",
+            onfail="Error in ( re )assigning switch mastership" )
+        # TODO Check if intents all exist in datastore
 
-    def CASE4(self,main) :
+    def CASE4( self, main ):
         """
         Ping across added host intents
         """
         description = " Ping across added host intents"
-        main.log.report(description)
-        main.case(description)
-        Ping_Result = main.TRUE
-        for i in range(8,18):
-            ping = main.Mininet1.pingHost(src="h"+str(i),target="h"+str(i+10))
-            Ping_Result = Ping_Result and ping
-            if ping==main.FALSE:
-                main.log.warn("Ping failed between h"+str(i)+" and h" + str(i+10))
-            elif ping==main.TRUE:
-                main.log.info("Ping test passed!")
-                Ping_Result = main.TRUE
-        if Ping_Result==main.FALSE:
-            main.log.report("Intents have not been installed correctly, pings failed.")
-        if Ping_Result==main.TRUE:
-            main.log.report("Intents have been installed correctly and verified by pings")
-        utilities.assert_equals(expect = main.TRUE,actual=Ping_Result,
-                onpass="Intents have been installed correctly and pings work",
-                onfail ="Intents have not been installed correctly, pings failed." )
+        main.log.report( description )
+        main.case( description )
+        PingResult = main.TRUE
+        for i in range( 8, 18 ):
+            ping = main.Mininet1.pingHost(
+                src="h" + str( i ), target="h" + str( i + 10 ) )
+            PingResult = PingResult and ping
+            if ping == main.FALSE:
+                main.log.warn( "Ping failed between h" + str( i ) +
+                               " and h" + str( i + 10 ) )
+            elif ping == main.TRUE:
+                main.log.info( "Ping test passed!" )
+                PingResult = main.TRUE
+        if PingResult == main.FALSE:
+            main.log.report(
+                "Intents have not been installed correctly, pings failed." )
+        if PingResult == main.TRUE:
+            main.log.report(
+                "Intents have been installed correctly and verified by pings" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=PingResult,
+            onpass="Intents have been installed correctly and pings work",
+            onfail="Intents have not been installed correctly, pings failed." )
 
-    def CASE5(self,main) :
-        '''
+    def CASE5( self, main ):
+        """
         Reading state of ONOS
-        '''
-        import time
+        """
         import json
-        from subprocess import Popen, PIPE
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
 
-        main.log.report("Setting up and gathering data for current state")
-        main.case("Setting up and gathering data for current state")
-        #The general idea for this test case is to pull the state of (intents,flows, topology,...) from each ONOS node
-        #We can then compare them with eachother and also with past states
+        main.log.report( "Setting up and gathering data for current state" )
+        main.case( "Setting up and gathering data for current state" )
+        # The general idea for this test case is to pull the state of
+        # ( intents,flows, topology,... ) from each ONOS node
+        # We can then compare them with eachother and also with past states
 
-        main.step("Get the Mastership of each switch from each controller")
-        global mastership_state
-        mastership_state = []
+        main.step( "Get the Mastership of each switch from each controller" )
+        global mastershipState
+        mastershipState = []
 
-        #Assert that each device has a master
-        ONOS1_master_not_null = main.ONOScli1.roles_not_null()
-        ONOS2_master_not_null = main.ONOScli2.roles_not_null()
-        ONOS3_master_not_null = main.ONOScli3.roles_not_null()
-        ONOS4_master_not_null = main.ONOScli4.roles_not_null()
-        ONOS5_master_not_null = main.ONOScli5.roles_not_null()
-        ONOS6_master_not_null = main.ONOScli6.roles_not_null()
-        ONOS7_master_not_null = main.ONOScli7.roles_not_null()
-        roles_not_null = ONOS1_master_not_null and ONOS2_master_not_null and\
-                ONOS3_master_not_null and ONOS4_master_not_null and\
-                ONOS5_master_not_null and ONOS6_master_not_null and\
-                ONOS7_master_not_null
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        ONOS1MasterNotNull = main.ONOScli1.rolesNotNull()
+        ONOS2MasterNotNull = main.ONOScli2.rolesNotNull()
+        ONOS3MasterNotNull = main.ONOScli3.rolesNotNull()
+        ONOS4MasterNotNull = main.ONOScli4.rolesNotNull()
+        ONOS5MasterNotNull = main.ONOScli5.rolesNotNull()
+        ONOS6MasterNotNull = main.ONOScli6.rolesNotNull()
+        ONOS7MasterNotNull = main.ONOScli7.rolesNotNull()
+        rolesNotNull = ONOS1MasterNotNull and ONOS2MasterNotNull and\
+            ONOS3MasterNotNull and ONOS4MasterNotNull and\
+            ONOS5MasterNotNull and ONOS6MasterNotNull and\
+            ONOS7MasterNotNull
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-        ONOS1_mastership = main.ONOScli1.roles()
-        ONOS2_mastership = main.ONOScli2.roles()
-        ONOS3_mastership = main.ONOScli3.roles()
-        ONOS4_mastership = main.ONOScli4.roles()
-        ONOS5_mastership = main.ONOScli5.roles()
-        ONOS6_mastership = main.ONOScli6.roles()
-        ONOS7_mastership = main.ONOScli7.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership\
-                or "Error" in ONOS2_mastership or not ONOS2_mastership\
-                or "Error" in ONOS3_mastership or not ONOS3_mastership\
-                or "Error" in ONOS4_mastership or not ONOS4_mastership\
-                or "Error" in ONOS5_mastership or not ONOS5_mastership\
-                or "Error" in ONOS6_mastership or not ONOS6_mastership\
-                or "Error" in ONOS7_mastership or not ONOS7_mastership:
-                    main.log.report("Error in getting ONOS roles")
-                    main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-                    main.log.warn("ONOS2 mastership response: " + repr(ONOS2_mastership))
-                    main.log.warn("ONOS3 mastership response: " + repr(ONOS3_mastership))
-                    main.log.warn("ONOS4 mastership response: " + repr(ONOS4_mastership))
-                    main.log.warn("ONOS5 mastership response: " + repr(ONOS5_mastership))
-                    main.log.warn("ONOS6 mastership response: " + repr(ONOS6_mastership))
-                    main.log.warn("ONOS7 mastership response: " + repr(ONOS7_mastership))
-                    consistent_mastership = main.FALSE
-        elif ONOS1_mastership == ONOS2_mastership\
-                and ONOS1_mastership == ONOS3_mastership\
-                and ONOS1_mastership == ONOS4_mastership\
-                and ONOS1_mastership == ONOS5_mastership\
-                and ONOS1_mastership == ONOS6_mastership\
-                and ONOS1_mastership == ONOS7_mastership:
-                    mastership_state = ONOS1_mastership
-                    consistent_mastership = main.TRUE
-                    main.log.report("Switch roles are consistent across all ONOS nodes")
+        ONOS1Mastership = main.ONOScli1.roles()
+        ONOS2Mastership = main.ONOScli2.roles()
+        ONOS3Mastership = main.ONOScli3.roles()
+        ONOS4Mastership = main.ONOScli4.roles()
+        ONOS5Mastership = main.ONOScli5.roles()
+        ONOS6Mastership = main.ONOScli6.roles()
+        ONOS7Mastership = main.ONOScli7.roles()
+        if "Error" in ONOS1Mastership or not ONOS1Mastership\
+                or "Error" in ONOS2Mastership or not ONOS2Mastership\
+                or "Error" in ONOS3Mastership or not ONOS3Mastership\
+                or "Error" in ONOS4Mastership or not ONOS4Mastership\
+                or "Error" in ONOS5Mastership or not ONOS5Mastership\
+                or "Error" in ONOS6Mastership or not ONOS6Mastership\
+                or "Error" in ONOS7Mastership or not ONOS7Mastership:
+            main.log.report( "Error in getting ONOS roles" )
+            main.log.warn(
+                "ONOS1 mastership response: " +
+                repr( ONOS1Mastership ) )
+            main.log.warn(
+                "ONOS2 mastership response: " +
+                repr( ONOS2Mastership ) )
+            main.log.warn(
+                "ONOS3 mastership response: " +
+                repr( ONOS3Mastership ) )
+            main.log.warn(
+                "ONOS4 mastership response: " +
+                repr( ONOS4Mastership ) )
+            main.log.warn(
+                "ONOS5 mastership response: " +
+                repr( ONOS5Mastership ) )
+            main.log.warn(
+                "ONOS6 mastership response: " +
+                repr( ONOS6Mastership ) )
+            main.log.warn(
+                "ONOS7 mastership response: " +
+                repr( ONOS7Mastership ) )
+            consistentMastership = main.FALSE
+        elif ONOS1Mastership == ONOS2Mastership\
+                and ONOS1Mastership == ONOS3Mastership\
+                and ONOS1Mastership == ONOS4Mastership\
+                and ONOS1Mastership == ONOS5Mastership\
+                and ONOS1Mastership == ONOS6Mastership\
+                and ONOS1Mastership == ONOS7Mastership:
+            mastershipState = ONOS1Mastership
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 roles: ", json.dumps(json.loads(ONOS1_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 roles: ", json.dumps(json.loads(ONOS2_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 roles: ", json.dumps(json.loads(ONOS3_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 roles: ", json.dumps(json.loads(ONOS4_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 roles: ", json.dumps(json.loads(ONOS5_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 roles: ", json.dumps(json.loads(ONOS6_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 roles: ", json.dumps(json.loads(ONOS7_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            consistent_mastership = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
+            main.log.warn(
+                "ONOS1 roles: ",
+                json.dumps(
+                    json.loads( ONOS1Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS2 roles: ",
+                json.dumps(
+                    json.loads( ONOS2Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS3 roles: ",
+                json.dumps(
+                    json.loads( ONOS3Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS4 roles: ",
+                json.dumps(
+                    json.loads( ONOS4Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS5 roles: ",
+                json.dumps(
+                    json.loads( ONOS5Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS6 roles: ",
+                json.dumps(
+                    json.loads( ONOS6Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS7 roles: ",
+                json.dumps(
+                    json.loads( ONOS7Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            consistentMastership = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
-
-        main.step("Get the intents from each controller")
-        global intent_state
-        intent_state = []
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        ONOS2_intents = main.ONOScli2.intents( json_format=True )
-        ONOS3_intents = main.ONOScli3.intents( json_format=True )
-        ONOS4_intents = main.ONOScli4.intents( json_format=True )
-        ONOS5_intents = main.ONOScli5.intents( json_format=True )
-        ONOS6_intents = main.ONOScli6.intents( json_format=True )
-        ONOS7_intents = main.ONOScli7.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents\
-                or "Error" in ONOS2_intents or not ONOS2_intents\
-                or "Error" in ONOS3_intents or not ONOS3_intents\
-                or "Error" in ONOS4_intents or not ONOS4_intents\
-                or "Error" in ONOS5_intents or not ONOS5_intents\
-                or "Error" in ONOS6_intents or not ONOS6_intents\
-                or "Error" in ONOS7_intents or not ONOS7_intents:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
-                    main.log.warn("ONOS2 intents response: " + repr(ONOS2_intents))
-                    main.log.warn("ONOS3 intents response: " + repr(ONOS3_intents))
-                    main.log.warn("ONOS4 intents response: " + repr(ONOS4_intents))
-                    main.log.warn("ONOS5 intents response: " + repr(ONOS5_intents))
-                    main.log.warn("ONOS6 intents response: " + repr(ONOS6_intents))
-                    main.log.warn("ONOS7 intents response: " + repr(ONOS7_intents))
-        elif ONOS1_intents == ONOS2_intents\
-                and ONOS1_intents == ONOS3_intents\
-                and ONOS1_intents == ONOS4_intents\
-                and ONOS1_intents == ONOS5_intents\
-                and ONOS1_intents == ONOS6_intents\
-                and ONOS1_intents == ONOS7_intents:
-                    intent_state = ONOS1_intents
-                    intent_check = main.TRUE
-                    main.log.report("Intents are consistent across all ONOS nodes")
+        main.step( "Get the intents from each controller" )
+        global intentState
+        intentState = []
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        ONOS2Intents = main.ONOScli2.intents( jsonFormat=True )
+        ONOS3Intents = main.ONOScli3.intents( jsonFormat=True )
+        ONOS4Intents = main.ONOScli4.intents( jsonFormat=True )
+        ONOS5Intents = main.ONOScli5.intents( jsonFormat=True )
+        ONOS6Intents = main.ONOScli6.intents( jsonFormat=True )
+        ONOS7Intents = main.ONOScli7.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents\
+                or "Error" in ONOS2Intents or not ONOS2Intents\
+                or "Error" in ONOS3Intents or not ONOS3Intents\
+                or "Error" in ONOS4Intents or not ONOS4Intents\
+                or "Error" in ONOS5Intents or not ONOS5Intents\
+                or "Error" in ONOS6Intents or not ONOS6Intents\
+                or "Error" in ONOS7Intents or not ONOS7Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
+            main.log.warn( "ONOS2 intents response: " + repr( ONOS2Intents ) )
+            main.log.warn( "ONOS3 intents response: " + repr( ONOS3Intents ) )
+            main.log.warn( "ONOS4 intents response: " + repr( ONOS4Intents ) )
+            main.log.warn( "ONOS5 intents response: " + repr( ONOS5Intents ) )
+            main.log.warn( "ONOS6 intents response: " + repr( ONOS6Intents ) )
+            main.log.warn( "ONOS7 intents response: " + repr( ONOS7Intents ) )
+        elif ONOS1Intents == ONOS2Intents\
+                and ONOS1Intents == ONOS3Intents\
+                and ONOS1Intents == ONOS4Intents\
+                and ONOS1Intents == ONOS5Intents\
+                and ONOS1Intents == ONOS6Intents\
+                and ONOS1Intents == ONOS7Intents:
+            intentState = ONOS1Intents
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 intents: ", json.dumps(json.loads(ONOS1_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 intents: ", json.dumps(json.loads(ONOS2_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 intents: ", json.dumps(json.loads(ONOS3_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 intents: ", json.dumps(json.loads(ONOS4_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 intents: ", json.dumps(json.loads(ONOS5_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 intents: ", json.dumps(json.loads(ONOS6_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 intents: ", json.dumps(json.loads(ONOS7_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            main.log.warn(
+                "ONOS1 intents: ",
+                json.dumps(
+                    json.loads( ONOS1Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS2 intents: ",
+                json.dumps(
+                    json.loads( ONOS2Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS3 intents: ",
+                json.dumps(
+                    json.loads( ONOS3Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS4 intents: ",
+                json.dumps(
+                    json.loads( ONOS4Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS5 intents: ",
+                json.dumps(
+                    json.loads( ONOS5Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS6 intents: ",
+                json.dumps(
+                    json.loads( ONOS6Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS7 intents: ",
+                json.dumps(
+                    json.loads( ONOS7Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-
-        main.step("Get the flows from each controller")
-        global flow_state
-        flow_state = []
-        ONOS1_flows = main.ONOScli1.flows( json_format=True )
-        ONOS2_flows = main.ONOScli2.flows( json_format=True )
-        ONOS3_flows = main.ONOScli3.flows( json_format=True )
-        ONOS4_flows = main.ONOScli4.flows( json_format=True )
-        ONOS5_flows = main.ONOScli5.flows( json_format=True )
-        ONOS6_flows = main.ONOScli6.flows( json_format=True )
-        ONOS7_flows = main.ONOScli7.flows( json_format=True )
-        flow_check = main.FALSE
-        if "Error" in ONOS1_flows or not ONOS1_flows\
-                or "Error" in ONOS2_flows or not ONOS2_flows\
-                or "Error" in ONOS3_flows or not ONOS3_flows\
-                or "Error" in ONOS4_flows or not ONOS4_flows\
-                or "Error" in ONOS5_flows or not ONOS5_flows\
-                or "Error" in ONOS6_flows or not ONOS6_flows\
-                or "Error" in ONOS7_flows or not ONOS7_flows:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 flows repsponse: "+ ONOS1_flows)
-                    main.log.warn("ONOS2 flows repsponse: "+ ONOS2_flows)
-                    main.log.warn("ONOS3 flows repsponse: "+ ONOS3_flows)
-                    main.log.warn("ONOS4 flows repsponse: "+ ONOS4_flows)
-                    main.log.warn("ONOS5 flows repsponse: "+ ONOS5_flows)
-                    main.log.warn("ONOS6 flows repsponse: "+ ONOS6_flows)
-                    main.log.warn("ONOS7 flows repsponse: "+ ONOS7_flows)
-        elif len(json.loads(ONOS1_flows)) == len(json.loads(ONOS2_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS3_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS4_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS5_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS6_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS7_flows)):
-                #TODO: Do a better check, maybe compare flows on switches?
-                    flow_state = ONOS1_flows
-                    flow_check = main.TRUE
-                    main.log.report("Flow count is consistent across all ONOS nodes")
+        main.step( "Get the flows from each controller" )
+        global flowState
+        flowState = []
+        ONOS1Flows = main.ONOScli1.flows( jsonFormat=True )
+        ONOS2Flows = main.ONOScli2.flows( jsonFormat=True )
+        ONOS3Flows = main.ONOScli3.flows( jsonFormat=True )
+        ONOS4Flows = main.ONOScli4.flows( jsonFormat=True )
+        ONOS5Flows = main.ONOScli5.flows( jsonFormat=True )
+        ONOS6Flows = main.ONOScli6.flows( jsonFormat=True )
+        ONOS7Flows = main.ONOScli7.flows( jsonFormat=True )
+        ONOS1FlowsJson = json.loads( ONOS1Flows )
+        ONOS2FlowsJson = json.loads( ONOS2Flows )
+        ONOS3FlowsJson = json.loads( ONOS3Flows )
+        ONOS4FlowsJson = json.loads( ONOS4Flows )
+        ONOS5FlowsJson = json.loads( ONOS5Flows )
+        ONOS6FlowsJson = json.loads( ONOS6Flows )
+        ONOS7FlowsJson = json.loads( ONOS7Flows )
+        flowCheck = main.FALSE
+        if "Error" in ONOS1Flows or not ONOS1Flows\
+                or "Error" in ONOS2Flows or not ONOS2Flows\
+                or "Error" in ONOS3Flows or not ONOS3Flows\
+                or "Error" in ONOS4Flows or not ONOS4Flows\
+                or "Error" in ONOS5Flows or not ONOS5Flows\
+                or "Error" in ONOS6Flows or not ONOS6Flows\
+                or "Error" in ONOS7Flows or not ONOS7Flows:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 flows repsponse: " + ONOS1Flows )
+            main.log.warn( "ONOS2 flows repsponse: " + ONOS2Flows )
+            main.log.warn( "ONOS3 flows repsponse: " + ONOS3Flows )
+            main.log.warn( "ONOS4 flows repsponse: " + ONOS4Flows )
+            main.log.warn( "ONOS5 flows repsponse: " + ONOS5Flows )
+            main.log.warn( "ONOS6 flows repsponse: " + ONOS6Flows )
+            main.log.warn( "ONOS7 flows repsponse: " + ONOS7Flows )
+        elif len( ONOS1FlowsJson ) == len( ONOS2FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS3FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS4FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS5FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS6FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS7FlowsJson ):
+                # TODO: Do a better check, maybe compare flows on switches?
+            flowState = ONOS1Flows
+            flowCheck = main.TRUE
+            main.log.report( "Flow count is consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 flows: "+ json.dumps(json.loads(ONOS1_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 flows: "+ json.dumps(json.loads(ONOS2_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 flows: "+ json.dumps(json.loads(ONOS3_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 flows: "+ json.dumps(json.loads(ONOS4_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 flows: "+ json.dumps(json.loads(ONOS5_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 flows: "+ json.dumps(json.loads(ONOS6_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 flows: "+ json.dumps(json.loads(ONOS7_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-        utilities.assert_equals(expect = main.TRUE,actual=flow_check,
-                onpass="The flow count is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different flow counts")
+            main.log.warn( "ONOS1 flows: " +
+                           json.dumps( ONOS1FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS2 flows: " +
+                           json.dumps( ONOS2FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS3 flows: " +
+                           json.dumps( ONOS3FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS4 flows: " +
+                           json.dumps( ONOS4FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS5 flows: " +
+                           json.dumps( ONOS5FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS6 flows: " +
+                           json.dumps( ONOS6FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS7 flows: " +
+                           json.dumps( ONOS7FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=flowCheck,
+            onpass="The flow count is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different flow counts" )
 
-
-        main.step("Get the OF Table entries")
+        main.step( "Get the OF Table entries" )
         global flows
-        flows=[]
-        for i in range(1,29):
-            flows.append(main.Mininet2.get_flowTable(1.3, "s"+str(i)))
+        flows = []
+        for i in range( 1, 29 ):
+            flows.append( main.Mininet2.getFlowTable( 1.3, "s" + str( i ) ) )
 
-        #TODO: Compare switch flow tables with ONOS flow tables
+        # TODO: Compare switch flow tables with ONOS flow tables
 
-        main.step("Start continuous pings")
-        main.Mininet2.pingLong(src=main.params['PING']['source1'],
-                            target=main.params['PING']['target1'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source2'],
-                            target=main.params['PING']['target2'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source3'],
-                            target=main.params['PING']['target3'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source4'],
-                            target=main.params['PING']['target4'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source5'],
-                            target=main.params['PING']['target5'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source6'],
-                            target=main.params['PING']['target6'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source7'],
-                            target=main.params['PING']['target7'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source8'],
-                            target=main.params['PING']['target8'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source9'],
-                            target=main.params['PING']['target9'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source10'],
-                            target=main.params['PING']['target10'],pingTime=500)
+        main.step( "Start continuous pings" )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source1' ],
+            target=main.params[ 'PING' ][ 'target1' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source2' ],
+            target=main.params[ 'PING' ][ 'target2' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source3' ],
+            target=main.params[ 'PING' ][ 'target3' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source4' ],
+            target=main.params[ 'PING' ][ 'target4' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source5' ],
+            target=main.params[ 'PING' ][ 'target5' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source6' ],
+            target=main.params[ 'PING' ][ 'target6' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source7' ],
+            target=main.params[ 'PING' ][ 'target7' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source8' ],
+            target=main.params[ 'PING' ][ 'target8' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source9' ],
+            target=main.params[ 'PING' ][ 'target9' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source10' ],
+            target=main.params[ 'PING' ][ 'target10' ],
+            pingTime=500 )
 
-        main.step("Create TestONTopology object")
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         while True:
             temp = ()
-            if ('ip' + str(count)) in main.params['CTRL']:
-                temp = temp + (getattr(main,('ONOS' + str(count))),)
-                temp = temp + ("ONOS"+str(count),)
-                temp = temp + (main.params['CTRL']['ip'+str(count)],)
-                temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-                ctrls.append(temp)
+            if ( 'ip' + str( count ) ) in main.params[ 'CTRL' ]:
+                temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+                temp = temp + ( "ONOS" + str( count ), )
+                temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+                temp = temp + \
+                    ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+                ctrls.append( temp )
                 count = count + 1
             else:
                 break
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Collecting topology information from ONOS")
+        main.step( "Collecting topology information from ONOS" )
         devices = []
         devices.append( main.ONOScli1.devices() )
         devices.append( main.ONOScli2.devices() )
@@ -815,17 +891,19 @@
         devices.append( main.ONOScli6.devices() )
         devices.append( main.ONOScli7.devices() )
         hosts = []
-        hosts.append( json.loads( main.ONOScli1.hosts() ) )
-        hosts.append( json.loads( main.ONOScli2.hosts() ) )
-        hosts.append( json.loads( main.ONOScli3.hosts() ) )
-        hosts.append( json.loads( main.ONOScli4.hosts() ) )
-        hosts.append( json.loads( main.ONOScli5.hosts() ) )
-        hosts.append( json.loads( main.ONOScli6.hosts() ) )
-        hosts.append( json.loads( main.ONOScli7.hosts() ) )
-        for controller in range(0, len(hosts) ):
-            for host in hosts[controller]:
-                if host['ips'] == []:
-                    main.log.error("DEBUG:Error with host ips on controller"+str(controller+1)+": " + str(host))
+        hosts.append( main.ONOScli1.hosts() )
+        hosts.append( main.ONOScli2.hosts() )
+        hosts.append( main.ONOScli3.hosts() )
+        hosts.append( main.ONOScli4.hosts() )
+        hosts.append( main.ONOScli5.hosts() )
+        hosts.append( main.ONOScli6.hosts() )
+        hosts.append( main.ONOScli7.hosts() )
+        for controller in range( 0, len( hosts ) ):
+            controllerStr = str( controller + 1 )
+            for host in hosts[ controller ]:
+                if host[ 'ips' ] == []:
+                    main.log.error( "DEBUG:Error with host ips on controller" +
+                                    controllerStr + ": " + str( host ) )
         ports = []
         ports.append( main.ONOScli1.ports() )
         ports.append( main.ONOScli2.ports() )
@@ -851,477 +929,578 @@
         clusters.append( main.ONOScli6.clusters() )
         clusters.append( main.ONOScli7.clusters() )
         paths = []
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli1.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli2.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli3.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli4.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli5.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli6.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli7.topology() )
-        paths.append( temp_topo.get('paths', False) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli1.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli2.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli3.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli4.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli5.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli6.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli7.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
 
-        #Compare json objects for hosts, dataplane clusters and paths
+        # Compare json objects for hosts, dataplane clusters and paths
 
-        #hosts
-        consistent_hosts_result = main.TRUE
+        # hosts
+        consistentHostsResult = main.TRUE
         for controller in range( len( hosts ) ):
-            if not "Error" in hosts[controller]:
-                if hosts[controller] == hosts[0]:
+            controllerStr = str( controller + 1 )
+            if "Error" not in hosts[ controller ]:
+                if hosts[ controller ] == hosts[ 0 ]:
                     continue
-                else:#hosts not consistent
-                    main.log.report("hosts from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    main.log.warn( repr( hosts[controller] ) )
-                    consistent_hosts_result = main.FALSE
+                else:  # hosts not consistent
+                    main.log.report( "hosts from ONOS" +
+                                     controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    main.log.warn( repr( hosts[ controller ] ) )
+                    consistentHostsResult = main.FALSE
 
             else:
-                main.log.report("Error in getting ONOS hosts from ONOS" + str(controller + 1) )
-                consistent_hosts_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " hosts response: " + repr(hosts[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_hosts_result,
-                onpass="Hosts view is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of hosts")
+                main.log.report( "Error in getting ONOS hosts from ONOS" +
+                                 controllerStr )
+                consistentHostsResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr +
+                               " hosts response: " +
+                               repr( hosts[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentHostsResult,
+            onpass="Hosts view is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of hosts" )
 
-        #Strongly connected clusters of devices
-        consistent_clusters_result = main.TRUE
+        # Strongly connected clusters of devices
+        consistentClustersResult = main.TRUE
         for controller in range( len( clusters ) ):
-            if not "Error" in clusters[controller]:
-                if clusters[controller] == clusters[0]:
+            if "Error" not in clusters[ controller ]:
+                if clusters[ controller ] == clusters[ 0 ]:
                     continue
-                else:#clusters not consistent
-                    main.log.report("clusters from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    consistent_clusters_result = main.FALSE
+                else:  # clusters not consistent
+                    main.log.report( "clusters from ONOS" +
+                                     controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    consistentClustersResult = main.FALSE
 
             else:
-                main.log.report("Error in getting dataplane clusters from ONOS" + str(controller + 1) )
-                consistent_clusters_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " clusters response: " + repr(clusters[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_clusters_result,
-                onpass="Clusters view is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of clusters")
-        num_clusters =  len(json.loads(clusters[0])) #there should always only be one cluster
-        utilities.assert_equals(expect = 1, actual = num_clusters,
-                onpass="ONOS shows 1 SCC",
-                onfail="ONOS shows "+str(num_clusters) +" SCCs")
+                main.log.report( "Error in getting dataplane clusters " +
+                                 "from ONOS" + controllerStr )
+                consistentClustersResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr +
+                               " clusters response: " +
+                               repr( clusters[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentClustersResult,
+            onpass="Clusters view is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of clusters" )
+        # there should always only be one cluster
+        numClusters = len( json.loads( clusters[ 0 ] ) )
+        utilities.assert_equals(
+            expect=1,
+            actual=numClusters,
+            onpass="ONOS shows 1 SCC",
+            onfail="ONOS shows " +
+            str( numClusters ) +
+            " SCCs" )
 
-
-        #paths
-        consistent_paths_result = main.TRUE
+        # paths
+        consistentPathsResult = main.TRUE
         for controller in range( len( paths ) ):
-            if not "Error" in paths[controller]:
-                if paths[controller] == paths[0]:
+            controllerStr = str( controller + 1 )
+            if "Error" not in paths[ controller ]:
+                if paths[ controller ] == paths[ 0 ]:
                     continue
-                else:#paths not consistent
-                    main.log.report("paths from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    consistent_paths_result = main.FALSE
+                else:  # paths not consistent
+                    main.log.report( "paths from ONOS" + controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    consistentPathsResult = main.FALSE
 
             else:
-                main.log.report("Error in getting paths from ONOS" + str(controller + 1) )
-                consistent_paths_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " paths response: " + repr(paths[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_paths_result,
-                onpass="Paths count is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different counts of paths")
+                main.log.report( "Error in getting paths from ONOS" +
+                                 controllerStr )
+                consistentPathsResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr + " paths response: " +
+                               repr( paths[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentPathsResult,
+            onpass="Paths count is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different counts of paths" )
 
-
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        for controller in range(num_controllers):
-            if devices[controller] or not "Error" in devices[controller]:
-                current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        for controller in range( numControllers ):
+            controllerStr = str( controller + 1 )
+            if devices[ controller ] or "Error" not in devices[ controller ]:
+                currentDevicesResult = main.Mininet1.compareSwitches(
+                    MNTopo,
+                    json.loads(
+                        devices[ controller ] ) )
             else:
-                current_devices_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                    onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                currentDevicesResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentDevicesResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " Switches view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " Switches view is incorrect" )
 
-            if ports[controller] or not "Error" in ports[controller]:
-                current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+            if ports[ controller ] or "Error" not in ports[ controller ]:
+                currentPortsResult = main.Mininet1.comparePorts(
+                    MNTopo,
+                    json.loads(
+                        ports[ controller ] ) )
             else:
-                current_ports_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                    onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                currentPortsResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentPortsResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " ports view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " ports view is incorrect" )
 
-            if links[controller] or not "Error" in links[controller]:
-                current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+            if links[ controller ] or "Error" not in links[ controller ]:
+                currentLinksResult = main.Mininet1.compareLinks(
+                    MNTopo,
+                    json.loads(
+                        links[ controller ] ) )
             else:
-                current_links_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                    onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
+                currentLinksResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentLinksResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " links view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " links view is incorrect" )
 
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-        topo_result = devices_results and ports_results and links_results\
-                and consistent_hosts_result and consistent_clusters_result\
-                and consistent_paths_result
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
+        topoResult = devicesResults and portsResults and linksResults\
+            and consistentHostsResult and consistentClustersResult\
+            and consistentPathsResult
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
 
-        final_assert = main.TRUE
-        final_assert = final_assert and topo_result and flow_check \
-                and intent_check and consistent_mastership and roles_not_null
-        utilities.assert_equals(expect=main.TRUE, actual=final_assert,
-                onpass="State check successful",
-                onfail="State check NOT successful")
+        finalAssert = main.TRUE
+        finalAssert = finalAssert and topoResult and flowCheck \
+            and intentCheck and consistentMastership and rolesNotNull
+        utilities.assert_equals( expect=main.TRUE, actual=finalAssert,
+                                onpass="State check successful",
+                                onfail="State check NOT successful" )
 
-
-    def CASE6(self,main) :
-        '''
+    def CASE6( self, main ):
+        """
         The Failure case.
-        '''
+        """
         import time
-        main.log.report("Killing 3 ONOS nodes")
-        main.log.case("Restart minority of ONOS nodes")
-        #TODO: Randomize these nodes
-        main.ONOSbench.onos_kill(ONOS1_ip)
-        time.sleep(10)
-        main.ONOSbench.onos_kill(ONOS2_ip)
-        time.sleep(10)
-        main.ONOSbench.onos_kill(ONOS3_ip)
+        main.log.report( "Killing 3 ONOS nodes" )
+        main.log.case( "Restart minority of ONOS nodes" )
+        # TODO: Randomize these nodes
+        main.ONOSbench.onosKill( ONOS1Ip )
+        time.sleep( 10 )
+        main.ONOSbench.onosKill( ONOS2Ip )
+        time.sleep( 10 )
+        main.ONOSbench.onosKill( ONOS3Ip )
 
-        main.step("Checking if ONOS is up yet")
+        main.step( "Checking if ONOS is up yet" )
         count = 0
-        onos_isup_result = main.FALSE
-        while onos_isup_result == main.FALSE and count < 10:
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            onos2_isup = main.ONOSbench.isup(ONOS2_ip)
-            onos3_isup = main.ONOSbench.isup(ONOS3_ip)
-            onos_isup_result = onos1_isup and onos2_isup and onos3_isup
+        onosIsupResult = main.FALSE
+        while onosIsupResult == main.FALSE and count < 10:
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            onos2Isup = main.ONOSbench.isup( ONOS2Ip )
+            onos3Isup = main.ONOSbench.isup( ONOS3Ip )
+            onosIsupResult = onos1Isup and onos2Isup and onos3Isup
             count = count + 1
         # TODO: if it becomes an issue, we can retry this step  a few times
 
+        cliResult1 = main.ONOScli1.startOnosCli( ONOS1Ip )
+        cliResult2 = main.ONOScli2.startOnosCli( ONOS2Ip )
+        cliResult3 = main.ONOScli3.startOnosCli( ONOS3Ip )
+        cliResults = cliResult1 and cliResult2 and cliResult3
 
-        cli_result1 = main.ONOScli1.start_onos_cli(ONOS1_ip)
-        cli_result2 = main.ONOScli2.start_onos_cli(ONOS2_ip)
-        cli_result3 = main.ONOScli3.start_onos_cli(ONOS3_ip)
-        cli_results = cli_result1 and cli_result2 and cli_result3
+        main.log.info( "Install leadership election app on restarted node" )
 
-        main.log.info("Install leadership election app on restarted node")
+        caseResults = main.TRUE and onosIsupResult and cliResults
+        utilities.assert_equals( expect=main.TRUE, actual=caseResults,
+                                onpass="ONOS restart successful",
+                                onfail="ONOS restart NOT successful" )
 
-        case_results = main.TRUE and onos_isup_result and cli_results
-        utilities.assert_equals(expect=main.TRUE, actual=case_results,
-                onpass="ONOS restart successful",
-                onfail="ONOS restart NOT successful")
-
-
-    def CASE7(self,main) :
-        '''
+    def CASE7( self, main ):
+        """
         Check state after ONOS failure
-        '''
-        import os
+        """
         import json
-        main.case("Running ONOS Constant State Tests")
+        main.case( "Running ONOS Constant State Tests" )
 
-        #Assert that each device has a master
-        ONOS1_master_not_null = main.ONOScli1.roles_not_null()
-        ONOS2_master_not_null = main.ONOScli2.roles_not_null()
-        ONOS3_master_not_null = main.ONOScli3.roles_not_null()
-        ONOS4_master_not_null = main.ONOScli4.roles_not_null()
-        ONOS5_master_not_null = main.ONOScli5.roles_not_null()
-        ONOS6_master_not_null = main.ONOScli6.roles_not_null()
-        ONOS7_master_not_null = main.ONOScli7.roles_not_null()
-        roles_not_null = ONOS1_master_not_null and ONOS2_master_not_null and\
-                ONOS3_master_not_null and ONOS4_master_not_null and\
-                ONOS5_master_not_null and ONOS6_master_not_null and\
-                ONOS7_master_not_null
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        ONOS1MasterNotNull = main.ONOScli1.rolesNotNull()
+        ONOS2MasterNotNull = main.ONOScli2.rolesNotNull()
+        ONOS3MasterNotNull = main.ONOScli3.rolesNotNull()
+        ONOS4MasterNotNull = main.ONOScli4.rolesNotNull()
+        ONOS5MasterNotNull = main.ONOScli5.rolesNotNull()
+        ONOS6MasterNotNull = main.ONOScli6.rolesNotNull()
+        ONOS7MasterNotNull = main.ONOScli7.rolesNotNull()
+        rolesNotNull = ONOS1MasterNotNull and ONOS2MasterNotNull and\
+            ONOS3MasterNotNull and ONOS4MasterNotNull and\
+            ONOS5MasterNotNull and ONOS6MasterNotNull and\
+            ONOS7MasterNotNull
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-
-        main.step("Check if switch roles are consistent across all nodes")
-        ONOS1_mastership = main.ONOScli1.roles()
-        ONOS2_mastership = main.ONOScli2.roles()
-        ONOS3_mastership = main.ONOScli3.roles()
-        ONOS4_mastership = main.ONOScli4.roles()
-        ONOS5_mastership = main.ONOScli5.roles()
-        ONOS6_mastership = main.ONOScli6.roles()
-        ONOS7_mastership = main.ONOScli7.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership\
-                or "Error" in ONOS2_mastership or not ONOS2_mastership\
-                or "Error" in ONOS3_mastership or not ONOS3_mastership\
-                or "Error" in ONOS4_mastership or not ONOS4_mastership\
-                or "Error" in ONOS5_mastership or not ONOS5_mastership\
-                or "Error" in ONOS6_mastership or not ONOS6_mastership\
-                or "Error" in ONOS7_mastership or not ONOS7_mastership:
-                    main.log.error("Error in getting ONOS mastership")
-                    main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-                    main.log.warn("ONOS2 mastership response: " + repr(ONOS2_mastership))
-                    main.log.warn("ONOS3 mastership response: " + repr(ONOS3_mastership))
-                    main.log.warn("ONOS4 mastership response: " + repr(ONOS4_mastership))
-                    main.log.warn("ONOS5 mastership response: " + repr(ONOS5_mastership))
-                    main.log.warn("ONOS6 mastership response: " + repr(ONOS6_mastership))
-                    main.log.warn("ONOS7 mastership response: " + repr(ONOS7_mastership))
-                    consistent_mastership = main.FALSE
-        elif ONOS1_mastership == ONOS2_mastership\
-                and ONOS1_mastership == ONOS3_mastership\
-                and ONOS1_mastership == ONOS4_mastership\
-                and ONOS1_mastership == ONOS5_mastership\
-                and ONOS1_mastership == ONOS6_mastership\
-                and ONOS1_mastership == ONOS7_mastership:
-                    consistent_mastership = main.TRUE
-                    main.log.report("Switch roles are consistent across all ONOS nodes")
+        main.step( "Check if switch roles are consistent across all nodes" )
+        ONOS1Mastership = main.ONOScli1.roles()
+        ONOS2Mastership = main.ONOScli2.roles()
+        ONOS3Mastership = main.ONOScli3.roles()
+        ONOS4Mastership = main.ONOScli4.roles()
+        ONOS5Mastership = main.ONOScli5.roles()
+        ONOS6Mastership = main.ONOScli6.roles()
+        ONOS7Mastership = main.ONOScli7.roles()
+        # print json.dumps( json.loads( ONOS1Mastership ), sort_keys=True,
+        # indent=4, separators=( ',', ': ' ) )
+        if "Error" in ONOS1Mastership or not ONOS1Mastership\
+                or "Error" in ONOS2Mastership or not ONOS2Mastership\
+                or "Error" in ONOS3Mastership or not ONOS3Mastership\
+                or "Error" in ONOS4Mastership or not ONOS4Mastership\
+                or "Error" in ONOS5Mastership or not ONOS5Mastership\
+                or "Error" in ONOS6Mastership or not ONOS6Mastership\
+                or "Error" in ONOS7Mastership or not ONOS7Mastership:
+            main.log.error( "Error in getting ONOS mastership" )
+            main.log.warn( "ONOS1 mastership response: " +
+                           repr( ONOS1Mastership ) )
+            main.log.warn( "ONOS2 mastership response: " +
+                           repr( ONOS2Mastership ) )
+            main.log.warn( "ONOS3 mastership response: " +
+                           repr( ONOS3Mastership ) )
+            main.log.warn( "ONOS4 mastership response: " +
+                           repr( ONOS4Mastership ) )
+            main.log.warn( "ONOS5 mastership response: " +
+                           repr( ONOS5Mastership ) )
+            main.log.warn( "ONOS6 mastership response: " +
+                           repr( ONOS6Mastership ) )
+            main.log.warn( "ONOS7 mastership response: " +
+                           repr( ONOS7Mastership ) )
+            consistentMastership = main.FALSE
+        elif ONOS1Mastership == ONOS2Mastership\
+                and ONOS1Mastership == ONOS3Mastership\
+                and ONOS1Mastership == ONOS4Mastership\
+                and ONOS1Mastership == ONOS5Mastership\
+                and ONOS1Mastership == ONOS6Mastership\
+                and ONOS1Mastership == ONOS7Mastership:
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 roles: ", json.dumps(json.loads(ONOS1_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 roles: ", json.dumps(json.loads(ONOS2_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 roles: ", json.dumps(json.loads(ONOS3_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 roles: ", json.dumps(json.loads(ONOS4_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 roles: ", json.dumps(json.loads(ONOS5_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 roles: ", json.dumps(json.loads(ONOS6_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 roles: ", json.dumps(json.loads(ONOS7_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            consistent_mastership = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
-
+            main.log.warn( "ONOS1 roles: ", json.dumps(
+                json.loads( ONOS1Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS2 roles: ", json.dumps(
+                json.loads( ONOS2Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS3 roles: ", json.dumps(
+                json.loads( ONOS3Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS4 roles: ", json.dumps(
+                json.loads( ONOS4Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS5 roles: ", json.dumps(
+                json.loads( ONOS5Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS6 roles: ", json.dumps(
+                json.loads( ONOS6Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS7 roles: ", json.dumps(
+                json.loads( ONOS7Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            consistentMastership = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
         description2 = "Compare switch roles from before failure"
-        main.step(description2)
+        main.step( description2 )
 
-        current_json = json.loads(ONOS1_mastership)
-        old_json = json.loads(mastership_state)
-        mastership_check = main.TRUE
-        for i in range(1,29):
-            switchDPID = str(main.Mininet1.getSwitchDPID(switch="s"+str(i)))
+        currentJson = json.loads( ONOS1Mastership )
+        oldJson = json.loads( mastershipState )
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            switchDPID = str(
+                main.Mininet1.getSwitchDPID(
+                    switch="s" +
+                    str( i ) ) )
 
-            current = [switch['master'] for switch in current_json if switchDPID in switch['id']]
-            old = [switch['master'] for switch in old_json if switchDPID in switch['id']]
+            current = [ switch[ 'master' ] for switch in currentJson
+                        if switchDPID in switch[ 'id' ] ]
+            old = [ switch[ 'master' ] for switch in oldJson
+                    if switchDPID in switch[ 'id' ] ]
             if current == old:
-                mastership_check = mastership_check and main.TRUE
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                main.log.warn("Mastership of switch %s changed" % switchDPID)
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Mastership of Switches was not changed")
-        utilities.assert_equals(expect=main.TRUE,actual=mastership_check,
-                onpass="Mastership of Switches was not changed",
-                onfail="Mastership of some switches changed")
-        #NOTE: we expect mastership to change on controller failure
-        mastership_check = consistent_mastership
+                main.log.warn( "Mastership of switch %s changed" % switchDPID )
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Mastership of Switches was not changed" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Mastership of Switches was not changed",
+            onfail="Mastership of some switches changed" )
+        # NOTE: we expect mastership to change on controller failure
+        mastershipCheck = consistentMastership
 
-
-
-        main.step("Get the intents and compare across all nodes")
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        ONOS2_intents = main.ONOScli2.intents( json_format=True )
-        ONOS3_intents = main.ONOScli3.intents( json_format=True )
-        ONOS4_intents = main.ONOScli4.intents( json_format=True )
-        ONOS5_intents = main.ONOScli5.intents( json_format=True )
-        ONOS6_intents = main.ONOScli6.intents( json_format=True )
-        ONOS7_intents = main.ONOScli7.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents\
-                or "Error" in ONOS2_intents or not ONOS2_intents\
-                or "Error" in ONOS3_intents or not ONOS3_intents\
-                or "Error" in ONOS4_intents or not ONOS4_intents\
-                or "Error" in ONOS5_intents or not ONOS5_intents\
-                or "Error" in ONOS6_intents or not ONOS6_intents\
-                or "Error" in ONOS7_intents or not ONOS7_intents:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
-                    main.log.warn("ONOS2 intents response: " + repr(ONOS2_intents))
-                    main.log.warn("ONOS3 intents response: " + repr(ONOS3_intents))
-                    main.log.warn("ONOS4 intents response: " + repr(ONOS4_intents))
-                    main.log.warn("ONOS5 intents response: " + repr(ONOS5_intents))
-                    main.log.warn("ONOS6 intents response: " + repr(ONOS6_intents))
-                    main.log.warn("ONOS7 intents response: " + repr(ONOS7_intents))
-        elif ONOS1_intents == ONOS2_intents\
-                and ONOS1_intents == ONOS3_intents\
-                and ONOS1_intents == ONOS4_intents\
-                and ONOS1_intents == ONOS5_intents\
-                and ONOS1_intents == ONOS6_intents\
-                and ONOS1_intents == ONOS7_intents:
-                    intent_check = main.TRUE
-                    main.log.report("Intents are consistent across all ONOS nodes")
+        main.step( "Get the intents and compare across all nodes" )
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        ONOS2Intents = main.ONOScli2.intents( jsonFormat=True )
+        ONOS3Intents = main.ONOScli3.intents( jsonFormat=True )
+        ONOS4Intents = main.ONOScli4.intents( jsonFormat=True )
+        ONOS5Intents = main.ONOScli5.intents( jsonFormat=True )
+        ONOS6Intents = main.ONOScli6.intents( jsonFormat=True )
+        ONOS7Intents = main.ONOScli7.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents\
+                or "Error" in ONOS2Intents or not ONOS2Intents\
+                or "Error" in ONOS3Intents or not ONOS3Intents\
+                or "Error" in ONOS4Intents or not ONOS4Intents\
+                or "Error" in ONOS5Intents or not ONOS5Intents\
+                or "Error" in ONOS6Intents or not ONOS6Intents\
+                or "Error" in ONOS7Intents or not ONOS7Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
+            main.log.warn( "ONOS2 intents response: " + repr( ONOS2Intents ) )
+            main.log.warn( "ONOS3 intents response: " + repr( ONOS3Intents ) )
+            main.log.warn( "ONOS4 intents response: " + repr( ONOS4Intents ) )
+            main.log.warn( "ONOS5 intents response: " + repr( ONOS5Intents ) )
+            main.log.warn( "ONOS6 intents response: " + repr( ONOS6Intents ) )
+            main.log.warn( "ONOS7 intents response: " + repr( ONOS7Intents ) )
+        elif ONOS1Intents == ONOS2Intents\
+                and ONOS1Intents == ONOS3Intents\
+                and ONOS1Intents == ONOS4Intents\
+                and ONOS1Intents == ONOS5Intents\
+                and ONOS1Intents == ONOS6Intents\
+                and ONOS1Intents == ONOS7Intents:
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 intents: ")
-            print json.dumps(json.loads(ONOS1_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS2 intents: ")
-            print json.dumps(json.loads(ONOS2_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS3 intents: ")
-            print json.dumps(json.loads(ONOS3_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS4 intents: ")
-            print json.dumps(json.loads(ONOS4_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS5 intents: ")
-            print json.dumps(json.loads(ONOS5_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS6 intents: ")
-            print json.dumps(json.loads(ONOS6_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS7 intents: ")
-            print json.dumps(json.loads(ONOS7_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            main.log.warn( "ONOS1 intents: " )
+            print json.dumps( json.loads( ONOS1Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS2 intents: " )
+            print json.dumps( json.loads( ONOS2Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS3 intents: " )
+            print json.dumps( json.loads( ONOS3Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS4 intents: " )
+            print json.dumps( json.loads( ONOS4Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS5 intents: " )
+            print json.dumps( json.loads( ONOS5Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS6 intents: " )
+            print json.dumps( json.loads( ONOS6Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS7 intents: " )
+            print json.dumps( json.loads( ONOS7Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-        #NOTE: Hazelcast has no durability, so intents are lost across system restarts
-        main.step("Compare current intents with intents before the failure")
-        #NOTE: this requires case 5 to pass for intent_state to be set.
+        # NOTE: Hazelcast has no durability, so intents are lost across system
+        # restarts
+        main.step( "Compare current intents with intents before the failure" )
+        # NOTE: this requires case 5 to pass for intentState to be set.
         #      maybe we should stop the test if that fails?
-        if intent_state == ONOS1_intents:
-            same_intents = main.TRUE
-            main.log.report("Intents are consistent with before failure")
-        #TODO: possibly the states have changed? we may need to figure out what the aceptable states are
+        if intentState == ONOS1Intents:
+            sameIntents = main.TRUE
+            main.log.report( "Intents are consistent with before failure" )
+        # TODO: possibly the states have changed? we may need to figure out
+        # what the aceptable states are
         else:
             try:
-                main.log.warn("ONOS1 intents: ")
-                print json.dumps(json.loads(ONOS1_intents),
-                    sort_keys=True, indent=4, separators=(',', ': '))
+                main.log.warn( "ONOS1 intents: " )
+                print json.dumps( json.loads( ONOS1Intents ),
+                                  sort_keys=True, indent=4,
+                                  separators=( ',', ': ' ) )
             except:
                 pass
-            same_intents = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=same_intents,
-                onpass="Intents are consistent with before failure",
-                onfail="The Intents changed during failure")
-        intent_check = intent_check and same_intents
+            sameIntents = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=sameIntents,
+            onpass="Intents are consistent with before failure",
+            onfail="The Intents changed during failure" )
+        intentCheck = intentCheck and sameIntents
 
+        main.step( "Get the OF Table entries and compare to before " +
+                   "component failure" )
+        FlowTables = main.TRUE
+        flows2 = []
+        for i in range( 28 ):
+            main.log.info( "Checking flow table on s" + str( i + 1 ) )
+            tmpFlows = main.Mininet2.getFlowTable( 1.3, "s" + str( i + 1 ) )
+            flows2.append( tmpFlows )
+            tempResult = main.Mininet2.flowComp(
+                flow1=flows[ i ],
+                flow2=tmpFlows )
+            FlowTables = FlowTables and tempResult
+            if FlowTables == main.FALSE:
+                main.log.info( "Differences in flow table for switch: s" +
+                               str( i + 1 ) )
+        if FlowTables == main.TRUE:
+            main.log.report( "No changes were found in the flow tables" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=FlowTables,
+            onpass="No changes were found in the flow tables",
+            onfail="Changes were found in the flow tables" )
 
-
-        main.step("Get the OF Table entries and compare to before component failure")
-        Flow_Tables = main.TRUE
-        flows2=[]
-        for i in range(28):
-            main.log.info("Checking flow table on s" + str(i+1))
-            tmp_flows = main.Mininet2.get_flowTable(1.3, "s"+str(i+1))
-            flows2.append(tmp_flows)
-            temp_result = main.Mininet2.flow_comp(flow1=flows[i],flow2=tmp_flows)
-            Flow_Tables = Flow_Tables and temp_result
-            if Flow_Tables == main.FALSE:
-                main.log.info("Differences in flow table for switch: "+str(i+1))
-        if Flow_Tables == main.TRUE:
-            main.log.report("No changes were found in the flow tables")
-        utilities.assert_equals(expect=main.TRUE,actual=Flow_Tables,
-                onpass="No changes were found in the flow tables",
-                onfail="Changes were found in the flow tables")
-
-        main.step("Check the continuous pings to ensure that no packets were dropped during component failure")
-        #FIXME: This check is always failing. Investigate cause
-        #NOTE:  this may be something to do with file permsissions
+        main.step( "Check the continuous pings to ensure that no packets " +
+                   "were dropped during component failure" )
+        # FIXME: This check is always failing. Investigate cause
+        # NOTE:  this may be something to do with file permsissions
         #       or slight change in format
-        main.Mininet2.pingKill(main.params['TESTONUSER'], main.params['TESTONIP'])
-        Loss_In_Pings = main.FALSE 
-        #NOTE: checkForLoss returns main.FALSE with 0% packet loss
-        for i in range(8,18):
-            main.log.info("Checking for a loss in pings along flow from s" + str(i))
-            Loss_In_Pings = main.Mininet2.checkForLoss("/tmp/ping.h"+str(i)) or Loss_In_Pings
-        if Loss_In_Pings == main.TRUE:
-            main.log.info("Loss in ping detected")
-        elif Loss_In_Pings == main.ERROR:
-            main.log.info("There are multiple mininet process running")
-        elif Loss_In_Pings == main.FALSE:
-            main.log.info("No Loss in the pings")
-            main.log.report("No loss of dataplane connectivity")
-        utilities.assert_equals(expect=main.FALSE,actual=Loss_In_Pings,
-                onpass="No Loss of connectivity",
-                onfail="Loss of dataplane connectivity detected")
+        main.Mininet2.pingKill(
+            main.params[ 'TESTONUSER' ],
+            main.params[ 'TESTONIP' ] )
+        LossInPings = main.FALSE
+        # NOTE: checkForLoss returns main.FALSE with 0% packet loss
+        for i in range( 8, 18 ):
+            main.log.info(
+                "Checking for a loss in pings along flow from s" +
+                str( i ) )
+            LossInPings = main.Mininet2.checkForLoss(
+                "/tmp/ping.h" +
+                str( i ) ) or LossInPings
+        if LossInPings == main.TRUE:
+            main.log.info( "Loss in ping detected" )
+        elif LossInPings == main.ERROR:
+            main.log.info( "There are multiple mininet process running" )
+        elif LossInPings == main.FALSE:
+            main.log.info( "No Loss in the pings" )
+            main.log.report( "No loss of dataplane connectivity" )
+        utilities.assert_equals(
+            expect=main.FALSE,
+            actual=LossInPings,
+            onpass="No Loss of connectivity",
+            onfail="Loss of dataplane connectivity detected" )
 
-
-        #Test of LeadershipElection
-        leader_list = []
-        leader_result = main.TRUE
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leaderN = node.election_test_leader()
-            leader_list.append(leaderN)
+        # Test of LeadershipElection
+        leaderList = []
+        leaderResult = main.TRUE
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderN = node.electionTestLeader()
+            leaderList.append( leaderN )
             if leaderN == main.FALSE:
-                #error in  response
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
-            elif leaderN == None:
-                main.log.report("ONOS"+str(controller) + " shows no leader for the election-app was elected after the old one died")
-                leader_result = main.FALSE
-            elif leaderN == ONOS1_ip or leaderN == ONOS2_ip or leaderN == ONOS3_ip:
-                main.log.report("ONOS"+str(controller) + " shows "+str(leaderN)+" as leader for the election-app, but it was restarted")
-                leader_result = main.FALSE
-        if len( set( leader_list ) ) != 1:
-            leader_result = main.FALSE
-            main.log.error("Inconsistent view of leader for the election test app")
-            #TODO: print the list
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was re-elected if applicable)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                # error in  response
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
+            elif leaderN is None:
+                main.log.report( "ONOS" + str( controller ) +
+                                 " shows no leader for the election-app was" +
+                                 " elected after the old one died" )
+                leaderResult = main.FALSE
+            elif leaderN == ONOS1Ip or leaderN == ONOS2Ip or\
+                    leaderN == ONOS3Ip:
+                main.log.report( "ONOS" + str( controller ) +
+                                 " shows " + str( leaderN ) +
+                                 " as leader for the election-app, but it " +
+                                 "was restarted" )
+                leaderResult = main.FALSE
+        if len( set( leaderList ) ) != 1:
+            leaderResult = main.FALSE
+            main.log.error(
+                "Inconsistent view of leader for the election test app" )
+            # TODO: print the list
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was re-elected if applicable )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        result = mastership_check and intent_check and Flow_Tables and (not Loss_In_Pings) and roles_not_null\
-                and leader_result
-        result = int(result)
+        result = mastershipCheck and intentCheck and FlowTables and\
+            ( not LossInPings ) and rolesNotNull and leaderResult
+        result = int( result )
         if result == main.TRUE:
-            main.log.report("Constant State Tests Passed")
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Constant State Tests Passed",
-                onfail="Constant state tests failed")
+            main.log.report( "Constant State Tests Passed" )
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Constant State Tests Passed",
+                                onfail="Constant state tests failed" )
 
-    def CASE8 (self,main):
-        '''
+    def CASE8( self, main ):
+        """
         Compare topo
-        '''
+        """
         import sys
-        sys.path.append("/home/admin/sts") # Trying to remove some dependancies, #FIXME add this path to params
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # FIXME add this path to params
+        sys.path.append( "/home/admin/sts" )
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
         import json
         import time
 
-        description ="Compare ONOS Topology view to Mininet topology"
-        main.case(description)
-        main.log.report(description)
-        main.step("Create TestONTopology object")
+        description = "Compare ONOS Topology view to Mininet topology"
+        main.case( description )
+        main.log.report( description )
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         while True:
             temp = ()
-            if ('ip' + str(count)) in main.params['CTRL']:
-                temp = temp + (getattr(main,('ONOS' + str(count))),)
-                temp = temp + ("ONOS"+str(count),)
-                temp = temp + (main.params['CTRL']['ip'+str(count)],)
-                temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-                ctrls.append(temp)
+            if ( 'ip' + str( count ) ) in main.params[ 'CTRL' ]:
+                temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+                temp = temp + ( "ONOS" + str( count ), )
+                temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+                temp = temp + \
+                    ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+                ctrls.append( temp )
                 count = count + 1
             else:
                 break
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        topo_result = main.FALSE
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        topoResult = main.FALSE
         elapsed = 0
         count = 0
-        main.step("Collecting topology information from ONOS")
-        start_time = time.time()
-        while topo_result == main.FALSE and elapsed < 60:
+        main.step( "Collecting topology information from ONOS" )
+        startTime = time.time()
+        while topoResult == main.FALSE and elapsed < 60:
             count = count + 1
             if count > 1:
-                MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
-            cli_start = time.time()
+                # TODO: Depricate STS usage
+                MNTopo = TestONTopology(
+                    main.Mininet1,
+                    ctrls )
+            cliStart = time.time()
             devices = []
             devices.append( main.ONOScli1.devices() )
             devices.append( main.ONOScli2.devices() )
@@ -1338,11 +1517,14 @@
             hosts.append( json.loads( main.ONOScli5.hosts() ) )
             hosts.append( json.loads( main.ONOScli6.hosts() ) )
             hosts.append( json.loads( main.ONOScli7.hosts() ) )
-            for controller in range(0, len(hosts) ):
-                for host in hosts[controller]:
+            for controller in range( 0, len( hosts ) ):
+                controllerStr = str( controller + 1 )
+                for host in hosts[ controller ]:
                     host
-                    if host['ips'] == []:
-                        main.log.error("DEBUG:Error with host ips on controller"+str(controller+1)+": " + str(host))
+                    if host[ 'ips' ] == []:
+                        main.log.error(
+                            "DEBUG:Error with host ips on controller" +
+                            controllerStr + ": " + str( host ) )
             ports = []
             ports.append( main.ONOScli1.ports() )
             ports.append( main.ONOScli2.ports() )
@@ -1368,492 +1550,578 @@
             clusters.append( main.ONOScli6.clusters() )
             clusters.append( main.ONOScli7.clusters() )
             paths = []
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli1.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli2.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli3.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli4.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli5.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli6.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli7.topology() )
-            paths.append( temp_topo.get('paths', False) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli1.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli2.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli3.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli4.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli5.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli6.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli7.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
 
+            elapsed = time.time() - startTime
+            cliTime = time.time() - cliStart
+            print "CLI time: " + str( cliTime )
 
-            elapsed = time.time() - start_time
-            cli_time = time.time() - cli_start
-            print "CLI time: " + str(cli_time)
-
-            for controller in range(num_controllers):
-                if devices[controller] or not "Error" in devices[controller]:
-                    current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+            for controller in range( numControllers ):
+                controllerStr = str( controller + 1 )
+                if devices[ controller ] or "Error" not in devices[
+                        controller ]:
+                    currentDevicesResult = main.Mininet1.compareSwitches(
+                        MNTopo,
+                        json.loads(
+                            devices[ controller ] ) )
                 else:
-                    current_devices_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                        onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                    currentDevicesResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentDevicesResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " Switches view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " Switches view is incorrect" )
 
-                if ports[controller] or not "Error" in ports[controller]:
-                    current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+                if ports[ controller ] or "Error" not in ports[ controller ]:
+                    currentPortsResult = main.Mininet1.comparePorts(
+                        MNTopo,
+                        json.loads(
+                            ports[ controller ] ) )
                 else:
-                    current_ports_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                        onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                    currentPortsResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentPortsResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " ports view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " ports view is incorrect" )
 
-                if links[controller] or not "Error" in links[controller]:
-                    current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+                if links[ controller ] or "Error" not in links[ controller ]:
+                    currentLinksResult = main.Mininet1.compareLinks(
+                        MNTopo,
+                        json.loads(
+                            links[ controller ] ) )
                 else:
-                    current_links_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                        onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+                    currentLinksResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentLinksResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " links view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " links view is incorrect" )
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-            #Compare json objects for hosts, dataplane clusters and paths
+            # Compare json objects for hosts, dataplane clusters and paths
 
-            #hosts
-            consistent_hosts_result = main.TRUE
+            # hosts
+            consistentHostsResult = main.TRUE
             for controller in range( len( hosts ) ):
-                if not "Error" in hosts[controller]:
-                    if hosts[controller] == hosts[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in hosts[ controller ]:
+                    if hosts[ controller ] == hosts[ 0 ]:
                         continue
-                    else:#hosts not consistent
-                        main.log.report("hosts from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        main.log.warn( repr( hosts[controller] ) )
-                        consistent_hosts_result = main.FALSE
+                    else:  # hosts not consistent
+                        main.log.report( "hosts from ONOS" + controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        main.log.warn( repr( hosts[ controller ] ) )
+                        consistentHostsResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting ONOS hosts from ONOS" + str(controller + 1) )
-                    consistent_hosts_result = main.FALSE
-            if consistent_hosts_result == main.FALSE:
-                for controller in range( len( hosts ) ):
-                    main.log.warn("ONOS" + str(controller + 1) + " hosts response: " + repr(hosts[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_hosts_result,
-                    onpass="Hosts view is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different views of hosts")
+                    main.log.report( "Error in getting ONOS hosts from ONOS" +
+                                     controllerStr )
+                    consistentHostsResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " hosts response: " +
+                                   repr( hosts[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentHostsResult,
+                onpass="Hosts view is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different views of hosts" )
 
-            #Strongly connected clusters of devices
-            consistent_clusters_result = main.TRUE
+            # Strongly connected clusters of devices
+            consistentClustersResult = main.TRUE
             for controller in range( len( clusters ) ):
-                if not "Error" in clusters[controller]:
-                    if clusters[controller] == clusters[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in clusters[ controller ]:
+                    if clusters[ controller ] == clusters[ 0 ]:
                         continue
-                    else:#clusters not consistent
-                        main.log.report("clusters from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        consistent_clusters_result = main.FALSE
+                    else:  # clusters not consistent
+                        main.log.report( "clusters from ONOS" +
+                                         controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        consistentClustersResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting dataplane clusters from ONOS" + str(controller + 1) )
-                    consistent_clusters_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " clusters response: " + repr(clusters[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_clusters_result,
-                    onpass="Clusters view is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different views of clusters")
-            num_clusters =  len(json.loads(clusters[0])) #there should always only be one cluster
-            utilities.assert_equals(expect = 1, actual = num_clusters,
-                    onpass="ONOS shows 1 SCC",
-                    onfail="ONOS shows "+str(num_clusters) +" SCCs")
+                    main.log.report( "Error in getting dataplane clusters " +
+                                     "from ONOS" + controllerStr )
+                    consistentClustersResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " clusters response: " +
+                                   repr( clusters[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentClustersResult,
+                onpass="Clusters view is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different views of clusters" )
+            # there should always only be one cluster
+            numClusters = len( json.loads( clusters[ 0 ] ) )
+            utilities.assert_equals(
+                expect=1,
+                actual=numClusters,
+                onpass="ONOS shows 1 SCC",
+                onfail="ONOS shows " +
+                str( numClusters ) +
+                " SCCs" )
 
-
-            #paths
-            consistent_paths_result = main.TRUE
+            # paths
+            consistentPathsResult = main.TRUE
             for controller in range( len( paths ) ):
-                if not "Error" in paths[controller]:
-                    if paths[controller] == paths[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in paths[ controller ]:
+                    if paths[ controller ] == paths[ 0 ]:
                         continue
-                    else:#paths not consistent
-                        main.log.report("paths from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        consistent_paths_result = main.FALSE
+                    else:  # paths not consistent
+                        main.log.report( "paths from ONOS" + controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        consistentPathsResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting paths from ONOS" + str(controller + 1) )
-                    consistent_paths_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " paths response: " + repr(paths[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_paths_result,
-                    onpass="Paths count is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different counts of paths")
+                    main.log.report( "Error in getting paths from ONOS" +
+                                     controllerStr )
+                    consistentPathsResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " paths response: " +
+                                   repr( paths[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentPathsResult,
+                onpass="Paths count is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different counts of paths" )
 
+            topoResult = ( devicesResults and portsResults and linksResults
+                           and consistentHostsResult
+                           and consistentClustersResult
+                           and consistentPathsResult )
 
-            topo_result = devices_results and ports_results and links_results\
-                    and consistent_hosts_result and consistent_clusters_result and consistent_paths_result
+        topoResult = topoResult and int( count <= 2 )
+        note = "note it takes about " + str( int( cliTime ) ) + \
+            " seconds for the test to make all the cli calls to fetch " +\
+            "the topology from each ONOS instance"
+        main.log.report(
+            "Very crass estimate for topology discovery/convergence( " +
+            str( note ) + " ): " + str( elapsed ) + " seconds, " +
+            str( count ) + " tries" )
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
+        if topoResult == main.TRUE:
+            main.log.report( "ONOS topology view matches Mininet topology" )
 
-        topo_result = topo_result and int(count <= 2)
-        note = "note it takes about "+str( int(cli_time) )+" seconds for the test to make all the cli calls to fetch the topology from each ONOS instance"
-        main.log.report("Very crass estimate for topology discovery/convergence("+ str(note) + "): " +\
-                str(elapsed) + " seconds, " + str(count) +" tries" )
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
-        if topo_result == main.TRUE:
-            main.log.report("ONOS topology view matches Mininet topology")
-
-
-    def CASE9 (self,main):
-        '''
+    def CASE9( self, main ):
+        """
         Link s3-s28 down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Turn off a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Turn off a link to ensure that Link Discovery " +\
+            "is working properly"
+        main.log.report( description )
+        main.case( description )
 
+        main.step( "Kill Link between s3 and s28" )
+        LinkDown = main.Mininet1.link( END1="s3", END2="s28", OPTION="down" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link down to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkDown,
+                                onpass="Link down succesful",
+                                onfail="Failed to bring link down" )
+        # TODO do some sort of check here
 
-        main.step("Kill Link between s3 and s28")
-        Link_Down = main.Mininet1.link(END1="s3",END2="s28",OPTION="down")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link down to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Down,
-                onpass="Link down succesful",
-                onfail="Failed to bring link down")
-        #TODO do some sort of check here
-
-    def CASE10 (self,main):
-        '''
+    def CASE10( self, main ):
+        """
         Link s3-s28 up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Restore a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Restore a link to ensure that Link Discovery is " + \
+            "working properly"
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Bring link between s3 and s28 back up")
-        Link_Up = main.Mininet1.link(END1="s3",END2="s28",OPTION="up")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link up to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Up,
-                onpass="Link up succesful",
-                onfail="Failed to bring link up")
-        #TODO do some sort of check here
+        main.step( "Bring link between s3 and s28 back up" )
+        LinkUp = main.Mininet1.link( END1="s3", END2="s28", OPTION="up" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link up to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkUp,
+                                onpass="Link up succesful",
+                                onfail="Failed to bring link up" )
+        # TODO do some sort of check here
 
-
-    def CASE11 (self, main) :
-        '''
+    def CASE11( self, main ):
+        """
         Switch Down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
 
         description = "Killing a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
 
-        #TODO: Make this switch parameterizable
-        main.step("Kill s28 ")
-        main.log.report("Deleting s28")
-        main.Mininet1.del_switch("s28")
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch down to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        # TODO: Make this switch parameterizable
+        main.step( "Kill " + switch )
+        main.log.report( "Deleting " + switch )
+        main.Mininet1.delSwitch( switch )
+        main.log.info( "Waiting " + str( switchSleep ) +
+                       " seconds for switch down to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == False:
+        if device and device[ 'available' ] is False:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Kill switch succesful",
-                onfail="Failed to kill switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Kill switch succesful",
+                                onfail="Failed to kill switch?" )
 
-    def CASE12 (self, main) :
-        '''
+    def CASE12( self, main ):
+        """
         Switch Up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
+        links = main.params[ 'kill' ][ 'links' ].split()
         description = "Adding a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Add back s28")
-        main.log.report("Adding back s28")
-        main.Mininet1.add_switch("s28", dpid = '0000000000002800')
-        #TODO: New dpid or same? Ask Thomas?
-        main.Mininet1.add_link('s28', 's3')
-        main.Mininet1.add_link('s28', 's6')
-        main.Mininet1.add_link('s28', 'h28')
-        main.Mininet1.assign_sw_controller(sw="28",count=num_controllers,
-                ip1=ONOS1_ip,port1=ONOS1_port,
-                ip2=ONOS2_ip,port2=ONOS2_port,
-                ip3=ONOS3_ip,port3=ONOS3_port,
-                ip4=ONOS4_ip,port4=ONOS4_port,
-                ip5=ONOS5_ip,port5=ONOS5_port,
-                ip6=ONOS6_ip,port6=ONOS6_port,
-                ip7=ONOS7_ip,port7=ONOS7_port)
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch up to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        main.step( "Add back " + switch )
+        main.log.report( "Adding back " + switch )
+        main.Mininet1.addSwitch( switch, dpid=switchDPID )
+        # TODO: New dpid or same? Ask Thomas?
+        for peer in links:
+            main.Mininet1.addLink( switch, peer )
+        main.Mininet1.assignSwController(
+            sw=switch.split( 's' )[ 1 ],
+            count=numControllers,
+            ip1=ONOS1Ip,
+            port1=ONOS1Port,
+            ip2=ONOS2Ip,
+            port2=ONOS2Port,
+            ip3=ONOS3Ip,
+            port3=ONOS3Port,
+            ip4=ONOS4Ip,
+            port4=ONOS4Port,
+            ip5=ONOS5Ip,
+            port5=ONOS5Port,
+            ip6=ONOS6Ip,
+            port6=ONOS6Port,
+            ip7=ONOS7Ip,
+            port7=ONOS7Port )
+        main.log.info(
+            "Waiting " +
+            str( switchSleep ) +
+            " seconds for switch up to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == True:
+        if device and device[ 'available' ]:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="add switch succesful",
-                onfail="Failed to add switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="add switch succesful",
+                                onfail="Failed to add switch?" )
 
-    def CASE13 (self, main) :
-        '''
+    def CASE13( self, main ):
+        """
         Clean up
-        '''
+        """
         import os
         import time
-        #printing colors to terminal
+        # TODO: make use of this elsewhere
+        ips = []
+        ips.append( ONOS1Ip )
+        ips.append( ONOS2Ip )
+        ips.append( ONOS3Ip )
+        ips.append( ONOS4Ip )
+        ips.append( ONOS5Ip )
+        ips.append( ONOS6Ip )
+        ips.append( ONOS7Ip )
+
+        # printing colors to terminal
         colors = {}
-        colors['cyan']   = '\033[96m'
-        colors['purple'] = '\033[95m'
-        colors['blue']   = '\033[94m'
-        colors['green']  = '\033[92m'
-        colors['yellow'] = '\033[93m'
-        colors['red']    = '\033[91m'
-        colors['end']    = '\033[0m'
+        colors[ 'cyan' ] = '\033[96m'
+        colors[ 'purple' ] = '\033[95m'
+        colors[ 'blue' ] = '\033[94m'
+        colors[ 'green' ] = '\033[92m'
+        colors[ 'yellow' ] = '\033[93m'
+        colors[ 'red' ] = '\033[91m'
+        colors[ 'end' ] = '\033[0m'
         description = "Test Cleanup"
-        main.log.report(description)
-        main.case(description)
-        main.step("Killing tcpdumps")
-        main.Mininet2.stop_tcpdump()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Killing tcpdumps" )
+        main.Mininet2.stopTcpdump()
 
-        main.step("Checking ONOS Logs for errors")
-        print colors['purple'] + "Checking logs for errors on ONOS1:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS1_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS2:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS2_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS3:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS3_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS4:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS4_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS5:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS5_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS6:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS6_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS7:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS7_ip)
+        main.step( "Checking ONOS Logs for errors" )
+        for i in range( 7 ):
+            print colors[ 'purple' ] + "Checking logs for errors on " + \
+                "ONOS" + str( i + 1 ) + ":" + colors[ 'end' ]
+            print main.ONOSbench.checkLogs( ips[ i ] )
 
-        main.step("Copying MN pcap and ONOS log files to test station")
+        main.step( "Copying MN pcap and ONOS log files to test station" )
         testname = main.TEST
-        teststation_user = main.params['TESTONUSER']
-        teststation_IP = main.params['TESTONIP']
-        #NOTE: MN Pcap file is being saved to ~/packet_captures
+        teststationUser = main.params[ 'TESTONUSER' ]
+        teststationIP = main.params[ 'TESTONIP' ]
+        # NOTE: MN Pcap file is being saved to ~/packet_captures
         #       scp this file as MN and TestON aren't necessarily the same vm
-        #FIXME: scp
-        #####mn files
-        #TODO: Load these from params
-        #NOTE: must end in /
-        log_folder = "/opt/onos/log/"
-        log_files = ["karaf.log", "karaf.log.1"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS2_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS2-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS3_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS3-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS4_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS4-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS5_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS5-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS6_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS6-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS7_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS7-"+f )
+        # FIXME: scp
+        # mn files
+        # TODO: Load these from params
+        # NOTE: must end in /
+        logFolder = "/opt/onos/log/"
+        logFiles = [ "karaf.log", "karaf.log.1" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            for i in range( 7 ):
+                main.ONOSbench.handle.sendline( "scp sdn@" + ips[ i ] + ":" +
+                                                logFolder + f + " " +
+                                                teststationUser + "@" +
+                                                teststationIP + ":" +
+                                                dstDir + str( testname ) +
+                                                "-ONOS" + str( i + 1 ) + "-" +
+                                                f )
+        # std*.log's
+        # NOTE: must end in /
+        logFolder = "/opt/onos/var/"
+        logFiles = [ "stderr.log", "stdout.log" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            for i in range( 7 ):
+                main.ONOSbench.handle.sendline( "scp sdn@" + ips[ i ] + ":" +
+                                                logFolder + f + " " +
+                                                teststationUser + "@" +
+                                                teststationIP + ":" +
+                                                dstDir + str( testname ) +
+                                                "-ONOS" + str( i + 1 ) + "-" +
+                                                f )
+        # sleep so scp can finish
+        time.sleep( 10 )
+        main.step( "Packing and rotating pcap archives" )
+        os.system( "~/TestON/dependencies/rotate.sh " + str( testname ) )
 
-        #std*.log's
-        #NOTE: must end in /
-        log_folder = "/opt/onos/var/"
-        log_files = ["stderr.log", "stdout.log"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS2_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS2-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS3_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS3-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS4_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS4-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS5_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS5-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS6_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS6-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS7_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS7-"+f )
+        # TODO: actually check something here
+        utilities.assert_equals( expect=main.TRUE, actual=main.TRUE,
+                                onpass="Test cleanup successful",
+                                onfail="Test cleanup NOT successful" )
 
-
-        #sleep so scp can finish
-        time.sleep(10)
-        main.step("Packing and rotating pcap archives")
-        os.system("~/TestON/dependencies/rotate.sh "+ str(testname))
-
-
-        #TODO: actually check something here
-        utilities.assert_equals(expect=main.TRUE, actual=main.TRUE,
-                onpass="Test cleanup successful",
-                onfail="Test cleanup NOT successful")
-
-    def CASE14 ( self, main ) :
-        '''
+    def CASE14( self, main ):
+        """
         start election app on all onos nodes
-        '''
-        leader_result = main.TRUE
-        #install app on onos 1
-        main.log.info("Install leadership election app")
-        main.ONOScli1.feature_install("onos-app-election")
-        #wait for election
-        #check for leader
-        leader = main.ONOScli1.election_test_leader()
-        #verify leader is ONOS1
-        if leader == ONOS1_ip:
-            #all is well
+        """
+        leaderResult = main.TRUE
+        # install app on onos 1
+        main.log.info( "Install leadership election app" )
+        main.ONOScli1.featureInstall( "onos-app-election" )
+        # wait for election
+        # check for leader
+        leader = main.ONOScli1.electionTestLeader()
+        # verify leader is ONOS1
+        if leader == ONOS1Ip:
+            # all is well
             pass
-        elif leader == None:
-            #No leader elected
-            main.log.report("No leader was elected")
-            leader_result = main.FALSE
+        elif leader is None:
+            # No leader elected
+            main.log.report( "No leader was elected" )
+            leaderResult = main.FALSE
         elif leader == main.FALSE:
-            #error in  response
-            #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-            main.log.report("Something is wrong with election_test_leader function, check the error logs")
-            leader_result = main.FALSE
+            # error in  response
+            # TODO: add check for "Command not found:" in the driver, this
+            # means the app isn't loaded
+            main.log.report( "Something is wrong with electionTestLeader" +
+                             " function, check the error logs" )
+            leaderResult = main.FALSE
         else:
-            #error in  response
-            main.log.report("Unexpected response from election_test_leader function:'"+str(leader)+"'")
-            leader_result = main.FALSE
+            # error in  response
+            main.log.report(
+                "Unexpected response from electionTestLeader function:'" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
 
-
-
-
-        #install on other nodes and check for leader.
-        #Should be onos1 and each app should show the same leader
-        for controller in range(2,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            node.feature_install("onos-app-election")
-            leaderN = node.election_test_leader()
-            #verify leader is ONOS1
-            if leaderN == ONOS1_ip:
-                #all is well
+        # install on other nodes and check for leader.
+        # Should be onos1 and each app should show the same leader
+        for controller in range( 2, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            node.featureInstall( "onos-app-election" )
+            leaderN = node.electionTestLeader()
+            # verify leader is ONOS1
+            if leaderN == ONOS1Ip:
+                # all is well
                 pass
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
             elif leader != leaderN:
-                leader_result = main.FALSE
-                main.log.report("ONOS" + str(controller) + " sees "+str(leaderN) +
-                        " as the leader of the election app. Leader should be "+str(leader) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a leader was elected)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                leaderResult = main.FALSE
+                main.log.report( "ONOS" + str( controller ) + " sees " +
+                                 str( leaderN ) +
+                                 " as the leader of the election app. Leader" +
+                                 " should be " +
+                                 str( leader ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a leader " +
+                             "was elected )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-    def CASE15 ( self, main ) :
-        '''
+    def CASE15( self, main ):
+        """
         Check that Leadership Election is still functional
-        '''
-        leader_result = main.TRUE
+        """
+        leaderResult = main.TRUE
         description = "Check that Leadership Election is still functional"
-        main.log.report(description)
-        main.case(description)
-        main.step("Find current leader and withdraw")
-        leader = main.ONOScli1.election_test_leader()
-        #TODO: do some sanity checking on leader before using it
-        withdraw_result = main.FALSE
-        if leader == ONOS1_ip:
-            old_leader = getattr( main, "ONOScli1" )
-        elif leader == ONOS2_ip:
-            old_leader = getattr( main, "ONOScli2" )
-        elif leader == ONOS3_ip:
-            old_leader = getattr( main, "ONOScli3" )
-        elif leader == ONOS4_ip:
-            old_leader = getattr( main, "ONOScli4" )
-        elif leader == ONOS5_ip:
-            old_leader = getattr( main, "ONOScli5" )
-        elif leader == ONOS6_ip:
-            old_leader = getattr( main, "ONOScli6" )
-        elif leader == ONOS7_ip:
-            old_leader = getattr( main, "ONOScli7" )
-        elif leader == None or leader == main.FALSE:
-            main.log.report("Leader for the election app should be an ONOS node,"\
-                    +"instead got '"+str(leader)+"'")
-            leader_result = main.FALSE
-        withdraw_result = old_leader.election_test_withdraw()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Find current leader and withdraw" )
+        leader = main.ONOScli1.electionTestLeader()
+        # TODO: do some sanity checking on leader before using it
+        withdrawResult = main.FALSE
+        if leader == ONOS1Ip:
+            oldLeader = getattr( main, "ONOScli1" )
+        elif leader == ONOS2Ip:
+            oldLeader = getattr( main, "ONOScli2" )
+        elif leader == ONOS3Ip:
+            oldLeader = getattr( main, "ONOScli3" )
+        elif leader == ONOS4Ip:
+            oldLeader = getattr( main, "ONOScli4" )
+        elif leader == ONOS5Ip:
+            oldLeader = getattr( main, "ONOScli5" )
+        elif leader == ONOS6Ip:
+            oldLeader = getattr( main, "ONOScli6" )
+        elif leader == ONOS7Ip:
+            oldLeader = getattr( main, "ONOScli7" )
+        elif leader is None or leader == main.FALSE:
+            main.log.report(
+                "Leader for the election app should be an ONOS node," +
+                "instead got '" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
+        withdrawResult = oldLeader.electionTestWithdraw()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=withdrawResult,
+            onpass="App was withdrawn from election",
+            onfail="App was not withdrawn from election" )
 
-
-        main.step("Make sure new leader is elected")
-        leader_list = []
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leader_list.append( node.election_test_leader() )
-        for leaderN in leader_list:
+        main.step( "Make sure new leader is elected" )
+        leaderList = []
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderList.append( node.electionTestLeader() )
+        for leaderN in leaderList:
             if leaderN == leader:
-                main.log.report("ONOS"+str(controller)+" still sees " + str(leader) +\
-                        " as leader after they withdrew")
-                leader_result = main.FALSE
+                main.log.report(
+                    "ONOS" +
+                    str( controller ) +
+                    " still sees " +
+                    str( leader ) +
+                    " as leader after they withdrew" )
+                leaderResult = main.FALSE
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
-        consistent_leader = main.FALSE
-        if len( set( leader_list ) ) == 1:
-            main.log.info("Each Election-app sees '"+str(leader_list[0])+"' as the leader")
-            consistent_leader = main.TRUE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, " +
+                                 "check the error logs" )
+                leaderResult = main.FALSE
+        consistentLeader = main.FALSE
+        if len( set( leaderList ) ) == 1:
+            main.log.info( "Each Election-app sees '" +
+                           str( leaderList[ 0 ] ) +
+                           "' as the leader" )
+            consistentLeader = main.TRUE
         else:
-            main.log.report("Inconsistent responses for leader of Election-app:")
-            for n in range(len(leader_list)):
-                main.log.report("ONOS" + str(n+1) + " response: " + str(leader_list[n]) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was elected when the old leader resigned)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+            main.log.report(
+                "Inconsistent responses for leader of Election-app:" )
+            for n in range( len( leaderList ) ):
+                main.log.report( "ONOS" + str( n + 1 ) + " response: " +
+                                 str( leaderList[ n ] ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was elected when the old leader " +
+                             "resigned )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        main.step("Run for election on old leader(just so everyone is in the hat)")
-        run_result = old_leader.election_test_run()
-        if consistent_leader == main.TRUE:
-            after_run = main.ONOScli1.election_test_leader()
-            #verify leader didn't just change
-            if after_run == leader_list[0]:
-                leader_result = main.TRUE
+        main.step(
+            "Run for election on old leader( just so everyone is in the hat )" )
+        runResult = oldLeader.electionTestRun()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=runResult,
+            onpass="App re-ran for election",
+            onfail="App failed to run for election" )
+        if consistentLeader == main.TRUE:
+            afterRun = main.ONOScli1.electionTestLeader()
+            # verify leader didn't just change
+            if afterRun == leaderList[ 0 ]:
+                leaderResult = main.TRUE
             else:
-                leader_result = main.FALSE
-        #TODO: assert on  run and withdraw results?
+                leaderResult = main.FALSE
+        # TODO: assert on  run and withdraw results?
 
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election after the old leader re-ran for election")
-
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election after " +
+                   "the old leader re-ran for election" )
diff --git a/TestON/tests/HATestSanity/HATestSanity.params b/TestON/tests/HATestSanity/HATestSanity.params
index 78e0c83..bc44e59 100644
--- a/TestON/tests/HATestSanity/HATestSanity.params
+++ b/TestON/tests/HATestSanity/HATestSanity.params
@@ -3,7 +3,7 @@
     <ENV>
     <cellName>HA</cellName>
     </ENV>
-    <Git>False</Git>
+    <Git>True</Git>
     <num_controllers> 7 </num_controllers>
 
     <CTRL>
@@ -56,6 +56,11 @@
         <LinkDiscovery>.2</LinkDiscovery>
         <SwitchDiscovery>.2</SwitchDiscovery>
     </timers>
+    <kill>
+        <switch> s5 </switch>
+        <dpid> 0000000000005000 </dpid>
+        <links> h5 s2 s1 s6 </links>
+    </kill>
     <MNtcpdump>
         <intf>eth0</intf>
         <port> </port>
diff --git a/TestON/tests/HATestSanity/HATestSanity.py b/TestON/tests/HATestSanity/HATestSanity.py
index 2d56e90..16df59c 100644
--- a/TestON/tests/HATestSanity/HATestSanity.py
+++ b/TestON/tests/HATestSanity/HATestSanity.py
@@ -1,4 +1,4 @@
-'''
+"""
 Description: This test is to determine if the HA test setup is
     working correctly. There are no failures so this test should
     have a 100% pass rate
@@ -19,14 +19,16 @@
 CASE13: Clean up
 CASE14: start election app on all onos nodes
 CASE15: Check that Leadership Election is still functional
-'''
+"""
+
+
 class HATestSanity:
 
-    def __init__(self) :
+    def __init__( self ):
         self.default = ''
 
-    def CASE1(self,main) :
-        '''
+    def CASE1( self, main ):
+        """
         CASE1 is to compile ONOS and push it to the test machines
 
         Startup sequence:
@@ -38,775 +40,856 @@
         NOTE: temporary - onos-remove-raft-logs
         onos-install -f
         onos-wait-for-start
-        '''
-        import time
-        main.log.report("ONOS HA Sanity test - initialization")
-        main.case("Setting up test environment")
-        #TODO: save all the timers and output them for plotting
+        """
+        main.log.report( "ONOS HA Sanity test - initialization" )
+        main.case( "Setting up test environment" )
+        # main.step( "This is a multiline \
+        #            comment\
+        #            this is \
+        #            a long \comment" )
+        print "First Line"
+        # TODO: save all the timers and output them for plotting
 
         # load some vairables from the params file
-        PULL_CODE = False
-        if main.params['Git'] == 'True':
-            PULL_CODE = True
-        cell_name = main.params['ENV']['cellName']
+        PULLCODE = False
+        if main.params[ 'Git' ] == 'True':
+            PULLCODE = True
 
-        #set global variables
-        global ONOS1_ip
-        global ONOS1_port
-        global ONOS2_ip
-        global ONOS2_port
-        global ONOS3_ip
-        global ONOS3_port
-        global ONOS4_ip
-        global ONOS4_port
-        global ONOS5_ip
-        global ONOS5_port
-        global ONOS6_ip
-        global ONOS6_port
-        global ONOS7_ip
-        global ONOS7_port
-        global num_controllers
+        cellName = main.params[ 'ENV' ][ 'cellName' ]
 
-        ONOS1_ip = main.params['CTRL']['ip1']
-        ONOS1_port = main.params['CTRL']['port1']
-        ONOS2_ip = main.params['CTRL']['ip2']
-        ONOS2_port = main.params['CTRL']['port2']
-        ONOS3_ip = main.params['CTRL']['ip3']
-        ONOS3_port = main.params['CTRL']['port3']
-        ONOS4_ip = main.params['CTRL']['ip4']
-        ONOS4_port = main.params['CTRL']['port4']
-        ONOS5_ip = main.params['CTRL']['ip5']
-        ONOS5_port = main.params['CTRL']['port5']
-        ONOS6_ip = main.params['CTRL']['ip6']
-        ONOS6_port = main.params['CTRL']['port6']
-        ONOS7_ip = main.params['CTRL']['ip7']
-        ONOS7_port = main.params['CTRL']['port7']
-        num_controllers = int(main.params['num_controllers'])
+        # set global variables
+        global ONOS1Ip
+        global ONOS1Port
+        global ONOS2Ip
+        global ONOS2Port
+        global ONOS3Ip
+        global ONOS3Port
+        global ONOS4Ip
+        global ONOS4Port
+        global ONOS5Ip
+        global ONOS5Port
+        global ONOS6Ip
+        global ONOS6Port
+        global ONOS7Ip
+        global ONOS7Port
+        global numControllers
 
+        ONOS1Ip = main.params[ 'CTRL' ][ 'ip1' ]
+        ONOS1Port = main.params[ 'CTRL' ][ 'port1' ]
+        ONOS2Ip = main.params[ 'CTRL' ][ 'ip2' ]
+        ONOS2Port = main.params[ 'CTRL' ][ 'port2' ]
+        ONOS3Ip = main.params[ 'CTRL' ][ 'ip3' ]
+        ONOS3Port = main.params[ 'CTRL' ][ 'port3' ]
+        ONOS4Ip = main.params[ 'CTRL' ][ 'ip4' ]
+        ONOS4Port = main.params[ 'CTRL' ][ 'port4' ]
+        ONOS5Ip = main.params[ 'CTRL' ][ 'ip5' ]
+        ONOS5Port = main.params[ 'CTRL' ][ 'port5' ]
+        ONOS6Ip = main.params[ 'CTRL' ][ 'ip6' ]
+        ONOS6Port = main.params[ 'CTRL' ][ 'port6' ]
+        ONOS7Ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS7Port = main.params[ 'CTRL' ][ 'port7' ]
+        numControllers = int( main.params[ 'num_controllers' ] )
 
-        main.step("Applying cell variable to environment")
-        cell_result = main.ONOSbench.set_cell(cell_name)
-        verify_result = main.ONOSbench.verify_cell()
+        main.step( "Applying cell variable to environment" )
+        cellResult = main.ONOSbench.setCell( cellName )
+        verifyResult = main.ONOSbench.verifyCell()
 
-        #FIXME:this is short term fix
-        main.log.report("Removing raft logs")
-        main.ONOSbench.onos_remove_raft_logs()
-        main.log.report("Uninstalling ONOS")
-        main.ONOSbench.onos_uninstall(ONOS1_ip)
-        main.ONOSbench.onos_uninstall(ONOS2_ip)
-        main.ONOSbench.onos_uninstall(ONOS3_ip)
-        main.ONOSbench.onos_uninstall(ONOS4_ip)
-        main.ONOSbench.onos_uninstall(ONOS5_ip)
-        main.ONOSbench.onos_uninstall(ONOS6_ip)
-        main.ONOSbench.onos_uninstall(ONOS7_ip)
+        # FIXME:this is short term fix
+        main.log.report( "Removing raft logs" )
+        main.ONOSbench.onosRemoveRaftLogs()
+        main.log.report( "Uninstalling ONOS" )
+        main.ONOSbench.onosUninstall( ONOS1Ip )
+        main.ONOSbench.onosUninstall( ONOS2Ip )
+        main.ONOSbench.onosUninstall( ONOS3Ip )
+        main.ONOSbench.onosUninstall( ONOS4Ip )
+        main.ONOSbench.onosUninstall( ONOS5Ip )
+        main.ONOSbench.onosUninstall( ONOS6Ip )
+        main.ONOSbench.onosUninstall( ONOS7Ip )
 
-        clean_install_result = main.TRUE
-        git_pull_result = main.TRUE
+        cleanInstallResult = main.TRUE
+        gitPullResult = main.TRUE
 
-        main.step("Compiling the latest version of ONOS")
-        if PULL_CODE:
-            # Configure branch in params
-            main.step("Git checkout and pull master")
-            main.ONOSbench.git_checkout("master")
-            git_pull_result = main.ONOSbench.git_pull()
+        main.step( "Compiling the latest version of ONOS" )
+        if PULLCODE:
+            # TODO Configure branch in params
+            main.step( "Git checkout and pull master" )
+            main.ONOSbench.gitCheckout( "master" )
+            gitPullResult = main.ONOSbench.gitPull()
 
-            main.step("Using mvn clean & install")
-            clean_install_result = main.TRUE
-            if git_pull_result == main.TRUE:
-                clean_install_result = main.ONOSbench.clean_install()
+            main.step( "Using mvn clean & install" )
+            cleanInstallResult = main.TRUE
+
+            if gitPullResult == main.TRUE:
+                cleanInstallResult = main.ONOSbench.cleanInstall()
             else:
-                main.log.warn("Did not pull new code so skipping mvn "+ \
-                        "clean install")
-        main.ONOSbench.get_version(report=True)
+                main.log.warn( "Did not pull new code so skipping mvn " +
+                               "clean install" )
+        main.ONOSbench.getVersion( report=True )
 
-        main.step("Creating ONOS package")
-        package_result = main.ONOSbench.onos_package()
+        main.step( "Creating ONOS package" )
+        packageResult = main.ONOSbench.onosPackage()
 
-        main.step("Installing ONOS package")
-        onos1_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS1_ip)
-        onos2_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS2_ip)
-        onos3_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS3_ip)
-        onos4_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS4_ip)
-        onos5_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS5_ip)
-        onos6_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS6_ip)
-        onos7_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS7_ip)
-        onos_install_result = onos1_install_result and onos2_install_result\
-                and onos3_install_result and onos4_install_result\
-                and onos5_install_result and onos6_install_result\
-                and onos7_install_result
-        '''
-        #FIXME: work around until onos is less fragile
-        main.ONOSbench.handle.sendline("onos-cluster-install")
-        print main.ONOSbench.handle.expect("\$")
-        onos_install_result = main.TRUE
-        '''
+        main.step( "Installing ONOS package" )
+        onos1InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS1Ip )
+        onos2InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS2Ip )
+        onos3InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS3Ip )
+        onos4InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS4Ip )
+        onos5InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS5Ip )
+        onos6InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS6Ip )
+        onos7InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS7Ip )
+        onosInstallResult = onos1InstallResult and onos2InstallResult\
+            and onos3InstallResult and onos4InstallResult\
+            and onos5InstallResult and onos6InstallResult\
+            and onos7InstallResult
 
-
-        main.step("Checking if ONOS is up yet")
-        #TODO check bundle:list?
-        for i in range(2):
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            if not onos1_isup:
-                main.log.report("ONOS1 didn't start!")
-            onos2_isup = main.ONOSbench.isup(ONOS2_ip)
-            if not onos2_isup:
-                main.log.report("ONOS2 didn't start!")
-            onos3_isup = main.ONOSbench.isup(ONOS3_ip)
-            if not onos3_isup:
-                main.log.report("ONOS3 didn't start!")
-            onos4_isup = main.ONOSbench.isup(ONOS4_ip)
-            if not onos4_isup:
-                main.log.report("ONOS4 didn't start!")
-            onos5_isup = main.ONOSbench.isup(ONOS5_ip)
-            if not onos5_isup:
-                main.log.report("ONOS5 didn't start!")
-            onos6_isup = main.ONOSbench.isup(ONOS6_ip)
-            if not onos6_isup:
-                main.log.report("ONOS6 didn't start!")
-            onos7_isup = main.ONOSbench.isup(ONOS7_ip)
-            if not onos7_isup:
-                main.log.report("ONOS7 didn't start!")
-            onos_isup_result = onos1_isup and onos2_isup and onos3_isup\
-                    and onos4_isup and onos5_isup and onos6_isup and onos7_isup
-            if onos_isup_result == main.TRUE:
+        main.step( "Checking if ONOS is up yet" )
+        # TODO check bundle:list?
+        for i in range( 2 ):
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            if not onos1Isup:
+                main.log.report( "ONOS1 didn't start!" )
+            onos2Isup = main.ONOSbench.isup( ONOS2Ip )
+            if not onos2Isup:
+                main.log.report( "ONOS2 didn't start!" )
+            onos3Isup = main.ONOSbench.isup( ONOS3Ip )
+            if not onos3Isup:
+                main.log.report( "ONOS3 didn't start!" )
+            onos4Isup = main.ONOSbench.isup( ONOS4Ip )
+            if not onos4Isup:
+                main.log.report( "ONOS4 didn't start!" )
+            onos5Isup = main.ONOSbench.isup( ONOS5Ip )
+            if not onos5Isup:
+                main.log.report( "ONOS5 didn't start!" )
+            onos6Isup = main.ONOSbench.isup( ONOS6Ip )
+            if not onos6Isup:
+                main.log.report( "ONOS6 didn't start!" )
+            onos7Isup = main.ONOSbench.isup( ONOS7Ip )
+            if not onos7Isup:
+                main.log.report( "ONOS7 didn't start!" )
+            onosIsupResult = onos1Isup and onos2Isup and onos3Isup\
+                and onos4Isup and onos5Isup and onos6Isup and onos7Isup
+            if onosIsupResult == main.TRUE:
                 break
 
+        cliResult1 = main.ONOScli1.startOnosCli( ONOS1Ip )
+        cliResult2 = main.ONOScli2.startOnosCli( ONOS2Ip )
+        cliResult3 = main.ONOScli3.startOnosCli( ONOS3Ip )
+        cliResult4 = main.ONOScli4.startOnosCli( ONOS4Ip )
+        cliResult5 = main.ONOScli5.startOnosCli( ONOS5Ip )
+        cliResult6 = main.ONOScli6.startOnosCli( ONOS6Ip )
+        cliResult7 = main.ONOScli7.startOnosCli( ONOS7Ip )
+        cliResults = cliResult1 and cliResult2 and cliResult3 and\
+            cliResult4 and cliResult5 and cliResult6 and cliResult7
 
-        cli_result1 = main.ONOScli1.start_onos_cli(ONOS1_ip)
-        cli_result2 = main.ONOScli2.start_onos_cli(ONOS2_ip)
-        cli_result3 = main.ONOScli3.start_onos_cli(ONOS3_ip)
-        cli_result4 = main.ONOScli4.start_onos_cli(ONOS4_ip)
-        cli_result5 = main.ONOScli5.start_onos_cli(ONOS5_ip)
-        cli_result6 = main.ONOScli6.start_onos_cli(ONOS6_ip)
-        cli_result7 = main.ONOScli7.start_onos_cli(ONOS7_ip)
-        cli_results = cli_result1 and cli_result2 and cli_result3 and\
-                cli_result4 and cli_result5 and cli_result6 and cli_result7
+        main.step( "Start Packet Capture MN" )
+        main.Mininet2.startTcpdump(
+            str( main.params[ 'MNtcpdump' ][ 'folder' ] ) + str( main.TEST )
+            + "-MN.pcap",
+            intf=main.params[ 'MNtcpdump' ][ 'intf' ],
+            port=main.params[ 'MNtcpdump' ][ 'port' ] )
 
-        main.step("Start Packet Capture MN")
-        main.Mininet2.start_tcpdump(
-                str(main.params['MNtcpdump']['folder'])+str(main.TEST)+"-MN.pcap",
-                intf = main.params['MNtcpdump']['intf'],
-                port = main.params['MNtcpdump']['port'])
+        case1Result = ( cleanInstallResult and packageResult and
+                        cellResult and verifyResult and onosInstallResult
+                        and onosIsupResult and cliResults )
 
+        utilities.assert_equals( expect=main.TRUE, actual=case1Result,
+                                onpass="Test startup successful",
+                                onfail="Test startup NOT successful" )
 
-        case1_result = (clean_install_result and package_result and
-                cell_result and verify_result and onos_install_result and
-                onos_isup_result and cli_results)
-
-        utilities.assert_equals(expect=main.TRUE, actual=case1_result,
-                onpass="Test startup successful",
-                onfail="Test startup NOT successful")
-
-
-        if case1_result==main.FALSE:
+        if case1Result == main.FALSE:
             main.cleanup()
             main.exit()
 
-    def CASE2(self,main) :
-        '''
+    def CASE2( self, main ):
+        """
         Assign mastership to controllers
-        '''
-        import time
-        import json
+        """
         import re
 
-        main.log.report("Assigning switches to controllers")
-        main.case("Assigning Controllers")
-        main.step("Assign switches to controllers")
+        main.log.report( "Assigning switches to controllers" )
+        main.case( "Assigning Controllers" )
+        main.step( "Assign switches to controllers" )
 
-        for i in range (1,29):
-           main.Mininet1.assign_sw_controller(sw=str(i),count=num_controllers,
-                    ip1=ONOS1_ip,port1=ONOS1_port,
-                    ip2=ONOS2_ip,port2=ONOS2_port,
-                    ip3=ONOS3_ip,port3=ONOS3_port,
-                    ip4=ONOS4_ip,port4=ONOS4_port,
-                    ip5=ONOS5_ip,port5=ONOS5_port,
-                    ip6=ONOS6_ip,port6=ONOS6_port,
-                    ip7=ONOS7_ip,port7=ONOS7_port)
+        for i in range( 1, 29 ):
+            main.Mininet1.assignSwController(
+                sw=str( i ),
+                count=numControllers,
+                ip1=ONOS1Ip, port1=ONOS1Port,
+                ip2=ONOS2Ip, port2=ONOS2Port,
+                ip3=ONOS3Ip, port3=ONOS3Port,
+                ip4=ONOS4Ip, port4=ONOS4Port,
+                ip5=ONOS5Ip, port5=ONOS5Port,
+                ip6=ONOS6Ip, port6=ONOS6Port,
+                ip7=ONOS7Ip, port7=ONOS7Port )
 
-        mastership_check = main.TRUE
-        for i in range (1,29):
-            response = main.Mininet1.get_sw_controller("s"+str(i))
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            response = main.Mininet1.getSwController( "s" + str( i ) )
             try:
-                main.log.info(str(response))
+                main.log.info( str( response ) )
             except:
-                main.log.info(repr(response))
-            if re.search("tcp:"+ONOS1_ip,response)\
-                    and re.search("tcp:"+ONOS2_ip,response)\
-                    and re.search("tcp:"+ONOS3_ip,response)\
-                    and re.search("tcp:"+ONOS4_ip,response)\
-                    and re.search("tcp:"+ONOS5_ip,response)\
-                    and re.search("tcp:"+ONOS6_ip,response)\
-                    and re.search("tcp:"+ONOS7_ip,response):
-                mastership_check = mastership_check and main.TRUE
+                main.log.info( repr( response ) )
+            if re.search( "tcp:" + ONOS1Ip, response )\
+                    and re.search( "tcp:" + ONOS2Ip, response )\
+                    and re.search( "tcp:" + ONOS3Ip, response )\
+                    and re.search( "tcp:" + ONOS4Ip, response )\
+                    and re.search( "tcp:" + ONOS5Ip, response )\
+                    and re.search( "tcp:" + ONOS6Ip, response )\
+                    and re.search( "tcp:" + ONOS7Ip, response ):
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Switch mastership assigned correctly")
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership assigned correctly",
-                onfail="Switches not assigned correctly to controllers")
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Switch mastership assigned correctly" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Switch mastership assigned correctly",
+            onfail="Switches not assigned correctly to controllers" )
 
-        #Manually assign mastership to the controller we want
-        role_call = main.TRUE
-        role_check = main.TRUE
+        # Manually assign mastership to the controller we want
+        roleCall = main.TRUE
+        roleCheck = main.TRUE
 
-        device_id = main.ONOScli1.get_device("1000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS1_ip)
-        if ONOS1_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "1000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS1Ip )
+        # Check assignment
+        if ONOS1Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("2800")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS1_ip)
-        if ONOS1_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "2800" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS1Ip )
+        # Check assignment
+        if ONOS1Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("2000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS2_ip)
-        if ONOS2_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "2000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS2Ip )
+        # Check assignment
+        if ONOS2Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS2_ip)
-        if ONOS2_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "3000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS2Ip )
+        # Check assignment
+        if ONOS2Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("5000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS3_ip)
-        if ONOS3_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "5000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS3Ip )
+        # Check assignment
+        if ONOS3Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("6000")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS3_ip)
-        if ONOS3_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "6000" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS3Ip )
+        # Check assignment
+        if ONOS3Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id =  main.ONOScli1.get_device("3004")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS4_ip)
-        if ONOS4_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        # Assign switch
+        deviceId = main.ONOScli1.getDevice( "3004" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS4Ip )
+        # Check assignment
+        if ONOS4Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3008")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
+        for i in range( 8, 18 ):
+            dpid = '3' + str( i ).zfill( 3 )
+            deviceId = main.ONOScli1.getDevice( dpid ).get( 'id' )
+            roleCall = roleCall and main.ONOScli1.deviceRole(
+                deviceId,
+                ONOS5Ip )
+            # Check assignment
+            if ONOS5Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+                roleCheck = roleCheck and main.TRUE
+            else:
+                roleCheck = roleCheck and main.FALSE
+
+        deviceId = main.ONOScli1.getDevice( "6007" ).get( 'id' )
+        roleCall = roleCall and main.ONOScli1.deviceRole(
+            deviceId,
+            ONOS6Ip )
+        # Check assignment
+        if ONOS6Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+            roleCheck = roleCheck and main.TRUE
         else:
-            role_check = role_check and main.FALSE
+            roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3009")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        for i in range( 18, 28 ):
+            dpid = '6' + str( i ).zfill( 3 )
+            deviceId = main.ONOScli1.getDevice( dpid ).get( 'id' )
+            roleCall = roleCall and main.ONOScli1.deviceRole(
+                deviceId,
+                ONOS7Ip )
+            # Check assignment
+            if ONOS7Ip in main.ONOScli1.getRole( deviceId ).get( 'master' ):
+                roleCheck = roleCheck and main.TRUE
+            else:
+                roleCheck = roleCheck and main.FALSE
 
-        device_id = main.ONOScli1.get_device("3010")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=roleCall,
+            onpass="Re-assigned switch mastership to designated controller",
+            onfail="Something wrong with deviceRole calls" )
 
-        device_id = main.ONOScli1.get_device("3011")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=roleCheck,
+            onpass="Switches were successfully reassigned to designated " +
+                   "controller",
+            onfail="Switches were not successfully reassigned" )
+        mastershipCheck = mastershipCheck and roleCall and roleCheck
+        utilities.assert_equals( expect=main.TRUE, actual=mastershipCheck,
+                                 onpass="Switch mastership correctly assigned",
+                                 onfail="Error in (re)assigning switch" +
+                                 " mastership" )
 
-        device_id = main.ONOScli1.get_device("3012")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3013")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3014")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3015")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3016")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("3017")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS5_ip)
-        if ONOS5_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6007")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS6_ip)
-        if ONOS6_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6018")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6019")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6020")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6021")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6022")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6023")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6024")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6025")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6026")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        device_id = main.ONOScli1.get_device("6027")['id']
-        role_call = role_call and main.ONOScli1.device_role(device_id, ONOS7_ip)
-        if ONOS7_ip in main.ONOScli1.get_role(device_id)['master']:
-            role_check = role_check and main.TRUE
-        else:
-            role_check = role_check and main.FALSE
-
-        utilities.assert_equals(expect = main.TRUE,actual=role_call,
-                onpass="Re-assigned switch mastership to designated controller",
-                onfail="Something wrong with device_role calls")
-
-        utilities.assert_equals(expect = main.TRUE,actual=role_check,
-                onpass="Switches were successfully reassigned to designated controller",
-                onfail="Switches were not successfully reassigned")
-        mastership_check = mastership_check and role_call and role_check
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-
-
-    def CASE3(self,main) :
+    def CASE3( self, main ):
         """
         Assign intents
-
         """
         import time
-        import json
-        import re
-        main.log.report("Adding host intents")
-        main.case("Adding host Intents")
+        main.log.report( "Adding host intents" )
+        main.case( "Adding host Intents" )
 
-        main.step("Discovering  Hosts( Via pingall for now)")
-        #FIXME: Once we have a host discovery mechanism, use that instead
+        main.step( "Discovering  Hosts( Via pingall for now )" )
+        # FIXME: Once we have a host discovery mechanism, use that instead
 
-        #install onos-app-fwd
-        main.log.info("Install reactive forwarding app")
-        main.ONOScli1.feature_install("onos-app-fwd")
-        main.ONOScli2.feature_install("onos-app-fwd")
-        main.ONOScli3.feature_install("onos-app-fwd")
-        main.ONOScli4.feature_install("onos-app-fwd")
-        main.ONOScli5.feature_install("onos-app-fwd")
-        main.ONOScli6.feature_install("onos-app-fwd")
-        main.ONOScli7.feature_install("onos-app-fwd")
+        # install onos-app-fwd
+        main.log.info( "Install reactive forwarding app" )
+        main.ONOScli1.featureInstall( "onos-app-fwd" )
+        main.ONOScli2.featureInstall( "onos-app-fwd" )
+        main.ONOScli3.featureInstall( "onos-app-fwd" )
+        main.ONOScli4.featureInstall( "onos-app-fwd" )
+        main.ONOScli5.featureInstall( "onos-app-fwd" )
+        main.ONOScli6.featureInstall( "onos-app-fwd" )
+        main.ONOScli7.featureInstall( "onos-app-fwd" )
 
-        #REACTIVE FWD test
-        ping_result = main.FALSE
+        # REACTIVE FWD test
+        pingResult = main.FALSE
         time1 = time.time()
-        ping_result = main.Mininet1.pingall()
+        pingResult = main.Mininet1.pingall()
         time2 = time.time()
-        main.log.info("Time for pingall: %2f seconds" % (time2 - time1))
+        main.log.info( "Time for pingall: %2f seconds" % ( time2 - time1 ) )
 
-        #uninstall onos-app-fwd
-        main.log.info("Uninstall reactive forwarding app")
-        main.ONOScli1.feature_uninstall("onos-app-fwd")
-        main.ONOScli2.feature_uninstall("onos-app-fwd")
-        main.ONOScli3.feature_uninstall("onos-app-fwd")
-        main.ONOScli4.feature_uninstall("onos-app-fwd")
-        main.ONOScli5.feature_uninstall("onos-app-fwd")
-        main.ONOScli6.feature_uninstall("onos-app-fwd")
-        main.ONOScli7.feature_uninstall("onos-app-fwd")
-        #timeout for fwd flows
-        time.sleep(10)
+        # uninstall onos-app-fwd
+        main.log.info( "Uninstall reactive forwarding app" )
+        main.ONOScli1.featureUninstall( "onos-app-fwd" )
+        main.ONOScli2.featureUninstall( "onos-app-fwd" )
+        main.ONOScli3.featureUninstall( "onos-app-fwd" )
+        main.ONOScli4.featureUninstall( "onos-app-fwd" )
+        main.ONOScli5.featureUninstall( "onos-app-fwd" )
+        main.ONOScli6.featureUninstall( "onos-app-fwd" )
+        main.ONOScli7.featureUninstall( "onos-app-fwd" )
+        # timeout for fwd flows
+        time.sleep( 10 )
 
-        main.step("Add  host intents")
-        #TODO:  move the host numbers to params
-        import json
-        intents_json= json.loads(main.ONOScli1.hosts())
-        intent_add_result = True
-        for i in range(8,18):
-            main.log.info("Adding host intent between h"+str(i)+" and h"+str(i+10))
-            host1 =  "00:00:00:00:00:" + str(hex(i)[2:]).zfill(2).upper()
-            host2 =  "00:00:00:00:00:" + str(hex(i+10)[2:]).zfill(2).upper()
-            host1_id = main.ONOScli1.get_host(host1)['id']
-            host2_id = main.ONOScli1.get_host(host2)['id']
-            #NOTE: get host can return None
-            if host1_id and host2_id:
-                tmp_result = main.ONOScli1.add_host_intent(host1_id, host2_id )
+        main.step( "Add  host intents" )
+        # TODO:  move the host numbers to params
+        intentAddResult = True
+        for i in range( 8, 18 ):
+            main.log.info( "Adding host intent between h" + str( i ) +
+                           " and h" + str( i + 10 ) )
+            host1 = "00:00:00:00:00:" + \
+                str( hex( i )[ 2: ] ).zfill( 2 ).upper()
+            host2 = "00:00:00:00:00:" + \
+                str( hex( i + 10 )[ 2: ] ).zfill( 2 ).upper()
+            host1Id = main.ONOScli1.getHost( host1 )[ 'id' ]
+            host2Id = main.ONOScli1.getHost( host2 )[ 'id' ]
+            # NOTE: get host can return None
+            if host1Id and host2Id:
+                tmpResult = main.ONOScli1.addHostIntent(
+                    host1Id,
+                    host2Id )
             else:
-                main.log.error("Error, get_host() failed")
-                tmp_result = main.FALSE
-            intent_add_result = bool(intent_add_result and tmp_result)
-        utilities.assert_equals(expect=True, actual=intent_add_result,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-        #TODO Check if intents all exist in datastore
-        #NOTE: Do we need to print this once the test is working?
-        #main.log.info(json.dumps(json.loads(main.ONOScli1.intents(json_format=True)),
-        #    sort_keys=True, indent=4, separators=(',', ': ') ) )
+                main.log.error( "Error, getHost() failed" )
+                tmpResult = main.FALSE
+            intentAddResult = bool( pingResult and intentAddResult
+                                     and tmpResult )
+            # TODO Check that intents were added?
+        utilities.assert_equals(
+            expect=True,
+            actual=intentAddResult,
+            onpass="Pushed host intents to ONOS",
+            onfail="Error in pushing host intents to ONOS" )
+        # TODO Check if intents all exist in datastore
 
-    def CASE4(self,main) :
+    def CASE4( self, main ):
         """
         Ping across added host intents
         """
         description = " Ping across added host intents"
-        main.log.report(description)
-        main.case(description)
-        Ping_Result = main.TRUE
-        for i in range(8,18):
-            ping = main.Mininet1.pingHost(src="h"+str(i),target="h"+str(i+10))
-            Ping_Result = Ping_Result and ping
-            if ping==main.FALSE:
-                main.log.warn("Ping failed between h"+str(i)+" and h" + str(i+10))
-            elif ping==main.TRUE:
-                main.log.info("Ping test passed!")
-                Ping_Result = main.TRUE
-        if Ping_Result==main.FALSE:
-            main.log.report("Intents have not been installed correctly, pings failed.")
-        if Ping_Result==main.TRUE:
-            main.log.report("Intents have been installed correctly and verified by pings")
-        utilities.assert_equals(expect = main.TRUE,actual=Ping_Result,
-                onpass="Intents have been installed correctly and pings work",
-                onfail ="Intents have not been installed correctly, pings failed." )
+        main.log.report( description )
+        main.case( description )
+        PingResult = main.TRUE
+        for i in range( 8, 18 ):
+            ping = main.Mininet1.pingHost(
+                src="h" + str( i ), target="h" + str( i + 10 ) )
+            PingResult = PingResult and ping
+            if ping == main.FALSE:
+                main.log.warn( "Ping failed between h" + str( i ) +
+                               " and h" + str( i + 10 ) )
+            elif ping == main.TRUE:
+                main.log.info( "Ping test passed!" )
+                PingResult = main.TRUE
+        if PingResult == main.FALSE:
+            main.log.report(
+                "Intents have not been installed correctly, pings failed." )
+            main.log.info( main.ONOScli1.intents() )
+        if PingResult == main.TRUE:
+            main.log.report(
+                "Intents have been installed correctly and verified by pings" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=PingResult,
+            onpass="Intents have been installed correctly and pings work",
+            onfail="Intents have not been installed correctly, pings failed." )
 
-    def CASE5(self,main) :
-        '''
+    def CASE5( self, main ):
+        """
         Reading state of ONOS
-        '''
-        import time
+        """
         import json
-        from subprocess import Popen, PIPE
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
 
-        main.log.report("Setting up and gathering data for current state")
-        main.case("Setting up and gathering data for current state")
-        #The general idea for this test case is to pull the state of (intents,flows, topology,...) from each ONOS node
-        #We can then compare them with eachother and also with past states
+        main.log.report( "Setting up and gathering data for current state" )
+        main.case( "Setting up and gathering data for current state" )
+        # The general idea for this test case is to pull the state of
+        # ( intents,flows, topology,... ) from each ONOS node
+        # We can then compare them with eachother and also with past states
 
-        main.step("Get the Mastership of each switch from each controller")
-        global mastership_state
-        mastership_state = []
+        main.step( "Get the Mastership of each switch from each controller" )
+        global mastershipState
+        mastershipState = []
 
-        #Assert that each device has a master
-        ONOS1_master_not_null = main.ONOScli1.roles_not_null()
-        ONOS2_master_not_null = main.ONOScli2.roles_not_null()
-        ONOS3_master_not_null = main.ONOScli3.roles_not_null()
-        ONOS4_master_not_null = main.ONOScli4.roles_not_null()
-        ONOS5_master_not_null = main.ONOScli5.roles_not_null()
-        ONOS6_master_not_null = main.ONOScli6.roles_not_null()
-        ONOS7_master_not_null = main.ONOScli7.roles_not_null()
-        roles_not_null = ONOS1_master_not_null and ONOS2_master_not_null and\
-                ONOS3_master_not_null and ONOS4_master_not_null and\
-                ONOS5_master_not_null and ONOS6_master_not_null and\
-                ONOS7_master_not_null
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        ONOS1MasterNotNull = main.ONOScli1.rolesNotNull()
+        ONOS2MasterNotNull = main.ONOScli2.rolesNotNull()
+        ONOS3MasterNotNull = main.ONOScli3.rolesNotNull()
+        ONOS4MasterNotNull = main.ONOScli4.rolesNotNull()
+        ONOS5MasterNotNull = main.ONOScli5.rolesNotNull()
+        ONOS6MasterNotNull = main.ONOScli6.rolesNotNull()
+        ONOS7MasterNotNull = main.ONOScli7.rolesNotNull()
+        rolesNotNull = ONOS1MasterNotNull and ONOS2MasterNotNull and\
+            ONOS3MasterNotNull and ONOS4MasterNotNull and\
+            ONOS5MasterNotNull and ONOS6MasterNotNull and\
+            ONOS7MasterNotNull
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-        ONOS1_mastership = main.ONOScli1.roles()
-        ONOS2_mastership = main.ONOScli2.roles()
-        ONOS3_mastership = main.ONOScli3.roles()
-        ONOS4_mastership = main.ONOScli4.roles()
-        ONOS5_mastership = main.ONOScli5.roles()
-        ONOS6_mastership = main.ONOScli6.roles()
-        ONOS7_mastership = main.ONOScli7.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership\
-                or "Error" in ONOS2_mastership or not ONOS2_mastership\
-                or "Error" in ONOS3_mastership or not ONOS3_mastership\
-                or "Error" in ONOS4_mastership or not ONOS4_mastership\
-                or "Error" in ONOS5_mastership or not ONOS5_mastership\
-                or "Error" in ONOS6_mastership or not ONOS6_mastership\
-                or "Error" in ONOS7_mastership or not ONOS7_mastership:
-                    main.log.report("Error in getting ONOS roles")
-                    main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-                    main.log.warn("ONOS2 mastership response: " + repr(ONOS2_mastership))
-                    main.log.warn("ONOS3 mastership response: " + repr(ONOS3_mastership))
-                    main.log.warn("ONOS4 mastership response: " + repr(ONOS4_mastership))
-                    main.log.warn("ONOS5 mastership response: " + repr(ONOS5_mastership))
-                    main.log.warn("ONOS6 mastership response: " + repr(ONOS6_mastership))
-                    main.log.warn("ONOS7 mastership response: " + repr(ONOS7_mastership))
-                    consistent_mastership = main.FALSE
-        elif ONOS1_mastership == ONOS2_mastership\
-                and ONOS1_mastership == ONOS3_mastership\
-                and ONOS1_mastership == ONOS4_mastership\
-                and ONOS1_mastership == ONOS5_mastership\
-                and ONOS1_mastership == ONOS6_mastership\
-                and ONOS1_mastership == ONOS7_mastership:
-                    mastership_state = ONOS1_mastership
-                    consistent_mastership = main.TRUE
-                    main.log.report("Switch roles are consistent across all ONOS nodes")
+        ONOS1Mastership = main.ONOScli1.roles()
+        ONOS2Mastership = main.ONOScli2.roles()
+        ONOS3Mastership = main.ONOScli3.roles()
+        ONOS4Mastership = main.ONOScli4.roles()
+        ONOS5Mastership = main.ONOScli5.roles()
+        ONOS6Mastership = main.ONOScli6.roles()
+        ONOS7Mastership = main.ONOScli7.roles()
+        # print json.dumps( json.loads( ONOS1Mastership ), sort_keys=True,
+        # indent=4, separators=( ',', ': ' ) )
+        if "Error" in ONOS1Mastership or not ONOS1Mastership\
+                or "Error" in ONOS2Mastership or not ONOS2Mastership\
+                or "Error" in ONOS3Mastership or not ONOS3Mastership\
+                or "Error" in ONOS4Mastership or not ONOS4Mastership\
+                or "Error" in ONOS5Mastership or not ONOS5Mastership\
+                or "Error" in ONOS6Mastership or not ONOS6Mastership\
+                or "Error" in ONOS7Mastership or not ONOS7Mastership:
+            main.log.report( "Error in getting ONOS roles" )
+            main.log.warn(
+                "ONOS1 mastership response: " +
+                repr( ONOS1Mastership ) )
+            main.log.warn(
+                "ONOS2 mastership response: " +
+                repr( ONOS2Mastership ) )
+            main.log.warn(
+                "ONOS3 mastership response: " +
+                repr( ONOS3Mastership ) )
+            main.log.warn(
+                "ONOS4 mastership response: " +
+                repr( ONOS4Mastership ) )
+            main.log.warn(
+                "ONOS5 mastership response: " +
+                repr( ONOS5Mastership ) )
+            main.log.warn(
+                "ONOS6 mastership response: " +
+                repr( ONOS6Mastership ) )
+            main.log.warn(
+                "ONOS7 mastership response: " +
+                repr( ONOS7Mastership ) )
+            consistentMastership = main.FALSE
+        elif ONOS1Mastership == ONOS2Mastership\
+                and ONOS1Mastership == ONOS3Mastership\
+                and ONOS1Mastership == ONOS4Mastership\
+                and ONOS1Mastership == ONOS5Mastership\
+                and ONOS1Mastership == ONOS6Mastership\
+                and ONOS1Mastership == ONOS7Mastership:
+            mastershipState = ONOS1Mastership
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 roles: ", json.dumps(json.loads(ONOS1_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 roles: ", json.dumps(json.loads(ONOS2_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 roles: ", json.dumps(json.loads(ONOS3_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 roles: ", json.dumps(json.loads(ONOS4_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 roles: ", json.dumps(json.loads(ONOS5_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 roles: ", json.dumps(json.loads(ONOS6_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 roles: ", json.dumps(json.loads(ONOS7_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            consistent_mastership = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
+            main.log.warn(
+                "ONOS1 roles: ",
+                json.dumps(
+                    json.loads( ONOS1Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS2 roles: ",
+                json.dumps(
+                    json.loads( ONOS2Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS3 roles: ",
+                json.dumps(
+                    json.loads( ONOS3Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS4 roles: ",
+                json.dumps(
+                    json.loads( ONOS4Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS5 roles: ",
+                json.dumps(
+                    json.loads( ONOS5Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS6 roles: ",
+                json.dumps(
+                    json.loads( ONOS6Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS7 roles: ",
+                json.dumps(
+                    json.loads( ONOS7Mastership ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            consistentMastership = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
-
-        main.step("Get the intents from each controller")
-        global intent_state
-        intent_state = []
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        ONOS2_intents = main.ONOScli2.intents( json_format=True )
-        ONOS3_intents = main.ONOScli3.intents( json_format=True )
-        ONOS4_intents = main.ONOScli4.intents( json_format=True )
-        ONOS5_intents = main.ONOScli5.intents( json_format=True )
-        ONOS6_intents = main.ONOScli6.intents( json_format=True )
-        ONOS7_intents = main.ONOScli7.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents\
-                or "Error" in ONOS2_intents or not ONOS2_intents\
-                or "Error" in ONOS3_intents or not ONOS3_intents\
-                or "Error" in ONOS4_intents or not ONOS4_intents\
-                or "Error" in ONOS5_intents or not ONOS5_intents\
-                or "Error" in ONOS6_intents or not ONOS6_intents\
-                or "Error" in ONOS7_intents or not ONOS7_intents:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
-                    main.log.warn("ONOS2 intents response: " + repr(ONOS2_intents))
-                    main.log.warn("ONOS3 intents response: " + repr(ONOS3_intents))
-                    main.log.warn("ONOS4 intents response: " + repr(ONOS4_intents))
-                    main.log.warn("ONOS5 intents response: " + repr(ONOS5_intents))
-                    main.log.warn("ONOS6 intents response: " + repr(ONOS6_intents))
-                    main.log.warn("ONOS7 intents response: " + repr(ONOS7_intents))
-        elif ONOS1_intents == ONOS2_intents\
-                and ONOS1_intents == ONOS3_intents\
-                and ONOS1_intents == ONOS4_intents\
-                and ONOS1_intents == ONOS5_intents\
-                and ONOS1_intents == ONOS6_intents\
-                and ONOS1_intents == ONOS7_intents:
-                    intent_state = ONOS1_intents
-                    intent_check = main.TRUE
-                    main.log.report("Intents are consistent across all ONOS nodes")
+        main.step( "Get the intents from each controller" )
+        global intentState
+        intentState = []
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        ONOS2Intents = main.ONOScli2.intents( jsonFormat=True )
+        ONOS3Intents = main.ONOScli3.intents( jsonFormat=True )
+        ONOS4Intents = main.ONOScli4.intents( jsonFormat=True )
+        ONOS5Intents = main.ONOScli5.intents( jsonFormat=True )
+        ONOS6Intents = main.ONOScli6.intents( jsonFormat=True )
+        ONOS7Intents = main.ONOScli7.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents\
+                or "Error" in ONOS2Intents or not ONOS2Intents\
+                or "Error" in ONOS3Intents or not ONOS3Intents\
+                or "Error" in ONOS4Intents or not ONOS4Intents\
+                or "Error" in ONOS5Intents or not ONOS5Intents\
+                or "Error" in ONOS6Intents or not ONOS6Intents\
+                or "Error" in ONOS7Intents or not ONOS7Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
+            main.log.warn( "ONOS2 intents response: " + repr( ONOS2Intents ) )
+            main.log.warn( "ONOS3 intents response: " + repr( ONOS3Intents ) )
+            main.log.warn( "ONOS4 intents response: " + repr( ONOS4Intents ) )
+            main.log.warn( "ONOS5 intents response: " + repr( ONOS5Intents ) )
+            main.log.warn( "ONOS6 intents response: " + repr( ONOS6Intents ) )
+            main.log.warn( "ONOS7 intents response: " + repr( ONOS7Intents ) )
+        elif ONOS1Intents == ONOS2Intents\
+                and ONOS1Intents == ONOS3Intents\
+                and ONOS1Intents == ONOS4Intents\
+                and ONOS1Intents == ONOS5Intents\
+                and ONOS1Intents == ONOS6Intents\
+                and ONOS1Intents == ONOS7Intents:
+            intentState = ONOS1Intents
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 intents: ", json.dumps(json.loads(ONOS1_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 intents: ", json.dumps(json.loads(ONOS2_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 intents: ", json.dumps(json.loads(ONOS3_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 intents: ", json.dumps(json.loads(ONOS4_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 intents: ", json.dumps(json.loads(ONOS5_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 intents: ", json.dumps(json.loads(ONOS6_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 intents: ", json.dumps(json.loads(ONOS7_intents),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            main.log.warn(
+                "ONOS1 intents: ",
+                json.dumps(
+                    json.loads( ONOS1Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS2 intents: ",
+                json.dumps(
+                    json.loads( ONOS2Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS3 intents: ",
+                json.dumps(
+                    json.loads( ONOS3Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS4 intents: ",
+                json.dumps(
+                    json.loads( ONOS4Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS5 intents: ",
+                json.dumps(
+                    json.loads( ONOS5Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS6 intents: ",
+                json.dumps(
+                    json.loads( ONOS6Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+            main.log.warn(
+                "ONOS7 intents: ",
+                json.dumps(
+                    json.loads( ONOS7Intents ),
+                    sort_keys=True,
+                    indent=4,
+                    separators=(
+                        ',',
+                        ': ' ) ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-
-        main.step("Get the flows from each controller")
-        global flow_state
-        flow_state = []
-        ONOS1_flows = main.ONOScli1.flows( json_format=True )
-        ONOS2_flows = main.ONOScli2.flows( json_format=True )
-        ONOS3_flows = main.ONOScli3.flows( json_format=True )
-        ONOS4_flows = main.ONOScli4.flows( json_format=True )
-        ONOS5_flows = main.ONOScli5.flows( json_format=True )
-        ONOS6_flows = main.ONOScli6.flows( json_format=True )
-        ONOS7_flows = main.ONOScli7.flows( json_format=True )
-        flow_check = main.FALSE
-        if "Error" in ONOS1_flows or not ONOS1_flows\
-                or "Error" in ONOS2_flows or not ONOS2_flows\
-                or "Error" in ONOS3_flows or not ONOS3_flows\
-                or "Error" in ONOS4_flows or not ONOS4_flows\
-                or "Error" in ONOS5_flows or not ONOS5_flows\
-                or "Error" in ONOS6_flows or not ONOS6_flows\
-                or "Error" in ONOS7_flows or not ONOS7_flows:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 flows repsponse: "+ ONOS1_flows)
-                    main.log.warn("ONOS2 flows repsponse: "+ ONOS2_flows)
-                    main.log.warn("ONOS3 flows repsponse: "+ ONOS3_flows)
-                    main.log.warn("ONOS4 flows repsponse: "+ ONOS4_flows)
-                    main.log.warn("ONOS5 flows repsponse: "+ ONOS5_flows)
-                    main.log.warn("ONOS6 flows repsponse: "+ ONOS6_flows)
-                    main.log.warn("ONOS7 flows repsponse: "+ ONOS7_flows)
-        elif len(json.loads(ONOS1_flows)) == len(json.loads(ONOS2_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS3_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS4_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS5_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS6_flows))\
-                and len(json.loads(ONOS1_flows)) == len(json.loads(ONOS7_flows)):
-                #TODO: Do a better check, maybe compare flows on switches?
-                    flow_state = ONOS1_flows
-                    flow_check = main.TRUE
-                    main.log.report("Flow count is consistent across all ONOS nodes")
+        main.step( "Get the flows from each controller" )
+        global flowState
+        flowState = []
+        ONOS1Flows = main.ONOScli1.flows( jsonFormat=True )
+        ONOS2Flows = main.ONOScli2.flows( jsonFormat=True )
+        ONOS3Flows = main.ONOScli3.flows( jsonFormat=True )
+        ONOS4Flows = main.ONOScli4.flows( jsonFormat=True )
+        ONOS5Flows = main.ONOScli5.flows( jsonFormat=True )
+        ONOS6Flows = main.ONOScli6.flows( jsonFormat=True )
+        ONOS7Flows = main.ONOScli7.flows( jsonFormat=True )
+        ONOS1FlowsJson = json.loads( ONOS1Flows )
+        ONOS2FlowsJson = json.loads( ONOS2Flows )
+        ONOS3FlowsJson = json.loads( ONOS3Flows )
+        ONOS4FlowsJson = json.loads( ONOS4Flows )
+        ONOS5FlowsJson = json.loads( ONOS5Flows )
+        ONOS6FlowsJson = json.loads( ONOS6Flows )
+        ONOS7FlowsJson = json.loads( ONOS7Flows )
+        flowCheck = main.FALSE
+        if "Error" in ONOS1Flows or not ONOS1Flows\
+                or "Error" in ONOS2Flows or not ONOS2Flows\
+                or "Error" in ONOS3Flows or not ONOS3Flows\
+                or "Error" in ONOS4Flows or not ONOS4Flows\
+                or "Error" in ONOS5Flows or not ONOS5Flows\
+                or "Error" in ONOS6Flows or not ONOS6Flows\
+                or "Error" in ONOS7Flows or not ONOS7Flows:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 flows repsponse: " + ONOS1Flows )
+            main.log.warn( "ONOS2 flows repsponse: " + ONOS2Flows )
+            main.log.warn( "ONOS3 flows repsponse: " + ONOS3Flows )
+            main.log.warn( "ONOS4 flows repsponse: " + ONOS4Flows )
+            main.log.warn( "ONOS5 flows repsponse: " + ONOS5Flows )
+            main.log.warn( "ONOS6 flows repsponse: " + ONOS6Flows )
+            main.log.warn( "ONOS7 flows repsponse: " + ONOS7Flows )
+        elif len( ONOS1FlowsJson ) == len( ONOS2FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS3FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS4FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS5FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS6FlowsJson )\
+                and len( ONOS1FlowsJson ) == len( ONOS7FlowsJson ):
+                # TODO: Do a better check, maybe compare flows on switches?
+            flowState = ONOS1Flows
+            flowCheck = main.TRUE
+            main.log.report( "Flow count is consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 flows: "+ json.dumps(json.loads(ONOS1_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 flows: "+ json.dumps(json.loads(ONOS2_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 flows: "+ json.dumps(json.loads(ONOS3_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 flows: "+ json.dumps(json.loads(ONOS4_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 flows: "+ json.dumps(json.loads(ONOS5_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 flows: "+ json.dumps(json.loads(ONOS6_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 flows: "+ json.dumps(json.loads(ONOS7_flows),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-        utilities.assert_equals(expect = main.TRUE,actual=flow_check,
-                onpass="The flow count is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different flow counts")
+            main.log.warn( "ONOS1 flows: " +
+                           json.dumps( ONOS1FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS2 flows: " +
+                           json.dumps( ONOS2FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS3 flows: " +
+                           json.dumps( ONOS3FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS4 flows: " +
+                           json.dumps( ONOS4FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS5 flows: " +
+                           json.dumps( ONOS5FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS6 flows: " +
+                           json.dumps( ONOS6FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS7 flows: " +
+                           json.dumps( ONOS7FlowsJson, sort_keys=True,
+                                       indent=4, separators=( ',', ': ' ) ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=flowCheck,
+            onpass="The flow count is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different flow counts" )
 
-
-        main.step("Get the OF Table entries")
+        main.step( "Get the OF Table entries" )
         global flows
-        flows=[]
-        for i in range(1,29):
-            flows.append(main.Mininet2.get_flowTable(1.3, "s"+str(i)))
+        flows = []
+        for i in range( 1, 29 ):
+            flows.append( main.Mininet2.getFlowTable( 1.3, "s" + str( i ) ) )
 
-        #TODO: Compare switch flow tables with ONOS flow tables
+        # TODO: Compare switch flow tables with ONOS flow tables
 
-        main.step("Start continuous pings")
-        main.Mininet2.pingLong(src=main.params['PING']['source1'],
-                            target=main.params['PING']['target1'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source2'],
-                            target=main.params['PING']['target2'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source3'],
-                            target=main.params['PING']['target3'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source4'],
-                            target=main.params['PING']['target4'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source5'],
-                            target=main.params['PING']['target5'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source6'],
-                            target=main.params['PING']['target6'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source7'],
-                            target=main.params['PING']['target7'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source8'],
-                            target=main.params['PING']['target8'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source9'],
-                            target=main.params['PING']['target9'],pingTime=500)
-        main.Mininet2.pingLong(src=main.params['PING']['source10'],
-                            target=main.params['PING']['target10'],pingTime=500)
+        main.step( "Start continuous pings" )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source1' ],
+            target=main.params[ 'PING' ][ 'target1' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source2' ],
+            target=main.params[ 'PING' ][ 'target2' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source3' ],
+            target=main.params[ 'PING' ][ 'target3' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source4' ],
+            target=main.params[ 'PING' ][ 'target4' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source5' ],
+            target=main.params[ 'PING' ][ 'target5' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source6' ],
+            target=main.params[ 'PING' ][ 'target6' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source7' ],
+            target=main.params[ 'PING' ][ 'target7' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source8' ],
+            target=main.params[ 'PING' ][ 'target8' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source9' ],
+            target=main.params[ 'PING' ][ 'target9' ],
+            pingTime=500 )
+        main.Mininet2.pingLong(
+            src=main.params[ 'PING' ][ 'source10' ],
+            target=main.params[ 'PING' ][ 'target10' ],
+            pingTime=500 )
 
-        main.step("Create TestONTopology object")
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         while True:
             temp = ()
-            if ('ip' + str(count)) in main.params['CTRL']:
-                temp = temp + (getattr(main,('ONOS' + str(count))),)
-                temp = temp + ("ONOS"+str(count),)
-                temp = temp + (main.params['CTRL']['ip'+str(count)],)
-                temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-                ctrls.append(temp)
+            if ( 'ip' + str( count ) ) in main.params[ 'CTRL' ]:
+                temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+                temp = temp + ( "ONOS" + str( count ), )
+                temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+                temp = temp + \
+                    ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+                ctrls.append( temp )
                 count = count + 1
             else:
                 break
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Collecting topology information from ONOS")
+        main.step( "Collecting topology information from ONOS" )
         devices = []
         devices.append( main.ONOScli1.devices() )
         devices.append( main.ONOScli2.devices() )
@@ -848,440 +931,549 @@
         clusters.append( main.ONOScli6.clusters() )
         clusters.append( main.ONOScli7.clusters() )
         paths = []
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli1.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli2.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli3.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli4.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli5.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli6.topology() )
-        paths.append( temp_topo.get('paths', False) )
-        temp_topo = main.ONOSbench.get_topology( main.ONOScli7.topology() )
-        paths.append( temp_topo.get('paths', False) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli1.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli2.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli3.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli4.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli5.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli6.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
+        tempTopo = main.ONOSbench.getTopology( main.ONOScli7.topology() )
+        paths.append( tempTopo.get( 'paths', False ) )
 
-        #Compare json objects for hosts, dataplane clusters and paths
+        # Compare json objects for hosts, dataplane clusters and paths
 
-        #hosts
-        consistent_hosts_result = main.TRUE
+        # hosts
+        consistentHostsResult = main.TRUE
         for controller in range( len( hosts ) ):
-            if not "Error" in hosts[controller]:
-                if hosts[controller] == hosts[0]:
+            controllerStr = str( controller + 1 )
+            if "Error" not in hosts[ controller ]:
+                if hosts[ controller ] == hosts[ 0 ]:
                     continue
-                else:#hosts not consistent
-                    main.log.report("hosts from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    main.log.warn( repr( hosts[controller] ) )
-                    consistent_hosts_result = main.FALSE
+                else:  # hosts not consistent
+                    main.log.report( "hosts from ONOS" +
+                                     controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    main.log.warn( repr( hosts[ controller ] ) )
+                    consistentHostsResult = main.FALSE
 
             else:
-                main.log.report("Error in getting ONOS hosts from ONOS" + str(controller + 1) )
-                consistent_hosts_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " hosts response: " + repr(hosts[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_hosts_result,
-                onpass="Hosts view is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of hosts")
+                main.log.report( "Error in getting ONOS hosts from ONOS" +
+                                 controllerStr )
+                consistentHostsResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr +
+                               " hosts response: " +
+                               repr( hosts[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentHostsResult,
+            onpass="Hosts view is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of hosts" )
 
-        #Strongly connected clusters of devices
-        consistent_clusters_result = main.TRUE
+        # Strongly connected clusters of devices
+        consistentClustersResult = main.TRUE
         for controller in range( len( clusters ) ):
-            if not "Error" in clusters[controller]:
-                if clusters[controller] == clusters[0]:
+            if "Error" not in clusters[ controller ]:
+                if clusters[ controller ] == clusters[ 0 ]:
                     continue
-                else:#clusters not consistent
-                    main.log.report("clusters from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    consistent_clusters_result = main.FALSE
+                else:  # clusters not consistent
+                    main.log.report( "clusters from ONOS" +
+                                     controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    consistentClustersResult = main.FALSE
 
             else:
-                main.log.report("Error in getting dataplane clusters from ONOS" + str(controller + 1) )
-                consistent_clusters_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " clusters response: " + repr(clusters[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_clusters_result,
-                onpass="Clusters view is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of clusters")
-        num_clusters =  len(json.loads(clusters[0])) #there should always only be one cluster
-        utilities.assert_equals(expect = 1, actual = num_clusters,
-                onpass="ONOS shows 1 SCC",
-                onfail="ONOS shows "+str(num_clusters) +" SCCs")
+                main.log.report( "Error in getting dataplane clusters " +
+                                 "from ONOS" + controllerStr )
+                consistentClustersResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr +
+                               " clusters response: " +
+                               repr( clusters[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentClustersResult,
+            onpass="Clusters view is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of clusters" )
+        # there should always only be one cluster
+        numClusters = len( json.loads( clusters[ 0 ] ) )
+        utilities.assert_equals(
+            expect=1,
+            actual=numClusters,
+            onpass="ONOS shows 1 SCC",
+            onfail="ONOS shows " +
+            str( numClusters ) +
+            " SCCs" )
 
-
-        #paths
-        consistent_paths_result = main.TRUE
+        # paths
+        consistentPathsResult = main.TRUE
         for controller in range( len( paths ) ):
-            if not "Error" in paths[controller]:
-                if paths[controller] == paths[0]:
+            controllerStr = str( controller + 1 )
+            if "Error" not in paths[ controller ]:
+                if paths[ controller ] == paths[ 0 ]:
                     continue
-                else:#paths not consistent
-                    main.log.report("paths from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                    consistent_paths_result = main.FALSE
+                else:  # paths not consistent
+                    main.log.report( "paths from ONOS" + controllerStr +
+                                     " is inconsistent with ONOS1" )
+                    consistentPathsResult = main.FALSE
 
             else:
-                main.log.report("Error in getting paths from ONOS" + str(controller + 1) )
-                consistent_paths_result = main.FALSE
-                main.log.warn("ONOS" + str(controller + 1) + " paths response: " + repr(paths[controller]) )
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_paths_result,
-                onpass="Paths count is consistent across all ONOS nodes",
-                onfail="ONOS nodes have different counts of paths")
+                main.log.report( "Error in getting paths from ONOS" +
+                                 controllerStr )
+                consistentPathsResult = main.FALSE
+                main.log.warn( "ONOS" + controllerStr + " paths response: " +
+                               repr( paths[ controller ] ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentPathsResult,
+            onpass="Paths count is consistent across all ONOS nodes",
+            onfail="ONOS nodes have different counts of paths" )
 
-
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        for controller in range(num_controllers):
-            if devices[controller] or not "Error" in devices[controller]:
-                current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        for controller in range( numControllers ):
+            controllerStr = str( controller + 1 )
+            if devices[ controller ] or "Error" not in devices[ controller ]:
+                currentDevicesResult = main.Mininet1.compareSwitches(
+                    MNTopo,
+                    json.loads(
+                        devices[ controller ] ) )
             else:
-                current_devices_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                    onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                currentDevicesResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentDevicesResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " Switches view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " Switches view is incorrect" )
 
-            if ports[controller] or not "Error" in ports[controller]:
-                current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+            if ports[ controller ] or "Error" not in ports[ controller ]:
+                currentPortsResult = main.Mininet1.comparePorts(
+                    MNTopo,
+                    json.loads(
+                        ports[ controller ] ) )
             else:
-                current_ports_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                    onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                currentPortsResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentPortsResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " ports view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " ports view is incorrect" )
 
-            if links[controller] or not "Error" in links[controller]:
-                current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+            if links[ controller ] or "Error" not in links[ controller ]:
+                currentLinksResult = main.Mininet1.compareLinks(
+                    MNTopo,
+                    json.loads(
+                        links[ controller ] ) )
             else:
-                current_links_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                    onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
+                currentLinksResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentLinksResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " links view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " links view is incorrect" )
 
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-        topo_result = devices_results and ports_results and links_results\
-                and consistent_hosts_result and consistent_clusters_result\
-                and consistent_paths_result
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
+        topoResult = devicesResults and portsResults and linksResults\
+            and consistentHostsResult and consistentClustersResult\
+            and consistentPathsResult
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
 
-        final_assert = main.TRUE
-        final_assert = final_assert and topo_result and flow_check \
-                and intent_check and consistent_mastership and roles_not_null
-        utilities.assert_equals(expect=main.TRUE, actual=final_assert,
-                onpass="State check successful",
-                onfail="State check NOT successful")
+        finalAssert = main.TRUE
+        finalAssert = finalAssert and topoResult and flowCheck \
+            and intentCheck and consistentMastership and rolesNotNull
+        utilities.assert_equals( expect=main.TRUE, actual=finalAssert,
+                                onpass="State check successful",
+                                onfail="State check NOT successful" )
 
-
-    def CASE6(self,main) :
-        '''
+    def CASE6( self, main ):
+        """
         The Failure case. Since this is the Sanity test, we do nothing.
-        '''
+        """
         import time
-        main.log.report("Wait 60 seconds instead of inducing a failure")
-        time.sleep(60)
-        utilities.assert_equals(expect=main.TRUE, actual=main.TRUE,
-                onpass="Sleeping 60 seconds",
-                onfail="Something is terribly wrong with my math")
+        main.log.report( "Wait 60 seconds instead of inducing a failure" )
+        time.sleep( 60 )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=main.TRUE,
+            onpass="Sleeping 60 seconds",
+            onfail="Something is terribly wrong with my math" )
 
-    def CASE7(self,main) :
-        '''
+    def CASE7( self, main ):
+        """
         Check state after ONOS failure
-        '''
-        import os
+        """
         import json
-        main.case("Running ONOS Constant State Tests")
+        main.case( "Running ONOS Constant State Tests" )
 
-        #Assert that each device has a master
-        ONOS1_master_not_null = main.ONOScli1.roles_not_null()
-        ONOS2_master_not_null = main.ONOScli2.roles_not_null()
-        ONOS3_master_not_null = main.ONOScli3.roles_not_null()
-        ONOS4_master_not_null = main.ONOScli4.roles_not_null()
-        ONOS5_master_not_null = main.ONOScli5.roles_not_null()
-        ONOS6_master_not_null = main.ONOScli6.roles_not_null()
-        ONOS7_master_not_null = main.ONOScli7.roles_not_null()
-        roles_not_null = ONOS1_master_not_null and ONOS2_master_not_null and\
-                ONOS3_master_not_null and ONOS4_master_not_null and\
-                ONOS5_master_not_null and ONOS6_master_not_null and\
-                ONOS7_master_not_null
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        ONOS1MasterNotNull = main.ONOScli1.rolesNotNull()
+        ONOS2MasterNotNull = main.ONOScli2.rolesNotNull()
+        ONOS3MasterNotNull = main.ONOScli3.rolesNotNull()
+        ONOS4MasterNotNull = main.ONOScli4.rolesNotNull()
+        ONOS5MasterNotNull = main.ONOScli5.rolesNotNull()
+        ONOS6MasterNotNull = main.ONOScli6.rolesNotNull()
+        ONOS7MasterNotNull = main.ONOScli7.rolesNotNull()
+        rolesNotNull = ONOS1MasterNotNull and ONOS2MasterNotNull and\
+            ONOS3MasterNotNull and ONOS4MasterNotNull and\
+            ONOS5MasterNotNull and ONOS6MasterNotNull and\
+            ONOS7MasterNotNull
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-
-        main.step("Check if switch roles are consistent across all nodes")
-        ONOS1_mastership = main.ONOScli1.roles()
-        ONOS2_mastership = main.ONOScli2.roles()
-        ONOS3_mastership = main.ONOScli3.roles()
-        ONOS4_mastership = main.ONOScli4.roles()
-        ONOS5_mastership = main.ONOScli5.roles()
-        ONOS6_mastership = main.ONOScli6.roles()
-        ONOS7_mastership = main.ONOScli7.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership\
-                or "Error" in ONOS2_mastership or not ONOS2_mastership\
-                or "Error" in ONOS3_mastership or not ONOS3_mastership\
-                or "Error" in ONOS4_mastership or not ONOS4_mastership\
-                or "Error" in ONOS5_mastership or not ONOS5_mastership\
-                or "Error" in ONOS6_mastership or not ONOS6_mastership\
-                or "Error" in ONOS7_mastership or not ONOS7_mastership:
-                    main.log.error("Error in getting ONOS mastership")
-                    main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-                    main.log.warn("ONOS2 mastership response: " + repr(ONOS2_mastership))
-                    main.log.warn("ONOS3 mastership response: " + repr(ONOS3_mastership))
-                    main.log.warn("ONOS4 mastership response: " + repr(ONOS4_mastership))
-                    main.log.warn("ONOS5 mastership response: " + repr(ONOS5_mastership))
-                    main.log.warn("ONOS6 mastership response: " + repr(ONOS6_mastership))
-                    main.log.warn("ONOS7 mastership response: " + repr(ONOS7_mastership))
-                    consistent_mastership = main.FALSE
-        elif ONOS1_mastership == ONOS2_mastership\
-                and ONOS1_mastership == ONOS3_mastership\
-                and ONOS1_mastership == ONOS4_mastership\
-                and ONOS1_mastership == ONOS5_mastership\
-                and ONOS1_mastership == ONOS6_mastership\
-                and ONOS1_mastership == ONOS7_mastership:
-                    consistent_mastership = main.TRUE
-                    main.log.report("Switch roles are consistent across all ONOS nodes")
+        main.step( "Check if switch roles are consistent across all nodes" )
+        ONOS1Mastership = main.ONOScli1.roles()
+        ONOS2Mastership = main.ONOScli2.roles()
+        ONOS3Mastership = main.ONOScli3.roles()
+        ONOS4Mastership = main.ONOScli4.roles()
+        ONOS5Mastership = main.ONOScli5.roles()
+        ONOS6Mastership = main.ONOScli6.roles()
+        ONOS7Mastership = main.ONOScli7.roles()
+        # print json.dumps( json.loads( ONOS1Mastership ), sort_keys=True,
+        # indent=4, separators=( ',', ': ' ) )
+        if "Error" in ONOS1Mastership or not ONOS1Mastership\
+                or "Error" in ONOS2Mastership or not ONOS2Mastership\
+                or "Error" in ONOS3Mastership or not ONOS3Mastership\
+                or "Error" in ONOS4Mastership or not ONOS4Mastership\
+                or "Error" in ONOS5Mastership or not ONOS5Mastership\
+                or "Error" in ONOS6Mastership or not ONOS6Mastership\
+                or "Error" in ONOS7Mastership or not ONOS7Mastership:
+            main.log.error( "Error in getting ONOS mastership" )
+            main.log.warn( "ONOS1 mastership response: " +
+                           repr( ONOS1Mastership ) )
+            main.log.warn( "ONOS2 mastership response: " +
+                           repr( ONOS2Mastership ) )
+            main.log.warn( "ONOS3 mastership response: " +
+                           repr( ONOS3Mastership ) )
+            main.log.warn( "ONOS4 mastership response: " +
+                           repr( ONOS4Mastership ) )
+            main.log.warn( "ONOS5 mastership response: " +
+                           repr( ONOS5Mastership ) )
+            main.log.warn( "ONOS6 mastership response: " +
+                           repr( ONOS6Mastership ) )
+            main.log.warn( "ONOS7 mastership response: " +
+                           repr( ONOS7Mastership ) )
+            consistentMastership = main.FALSE
+        elif ONOS1Mastership == ONOS2Mastership\
+                and ONOS1Mastership == ONOS3Mastership\
+                and ONOS1Mastership == ONOS4Mastership\
+                and ONOS1Mastership == ONOS5Mastership\
+                and ONOS1Mastership == ONOS6Mastership\
+                and ONOS1Mastership == ONOS7Mastership:
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 roles: ", json.dumps(json.loads(ONOS1_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS2 roles: ", json.dumps(json.loads(ONOS2_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS3 roles: ", json.dumps(json.loads(ONOS3_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS4 roles: ", json.dumps(json.loads(ONOS4_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS5 roles: ", json.dumps(json.loads(ONOS5_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS6 roles: ", json.dumps(json.loads(ONOS6_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            main.log.warn("ONOS7 roles: ", json.dumps(json.loads(ONOS7_mastership),
-                sort_keys=True, indent=4, separators=(',', ': ')))
-            consistent_mastership = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
-
+            main.log.warn( "ONOS1 roles: ", json.dumps(
+                json.loads( ONOS1Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS2 roles: ", json.dumps(
+                json.loads( ONOS2Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS3 roles: ", json.dumps(
+                json.loads( ONOS3Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS4 roles: ", json.dumps(
+                json.loads( ONOS4Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS5 roles: ", json.dumps(
+                json.loads( ONOS5Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS6 roles: ", json.dumps(
+                json.loads( ONOS6Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            main.log.warn( "ONOS7 roles: ", json.dumps(
+                json.loads( ONOS7Mastership ), sort_keys=True, indent=4,
+                separators=( ',', ': ' ) ) )
+            consistentMastership = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
         description2 = "Compare switch roles from before failure"
-        main.step(description2)
+        main.step( description2 )
 
-        current_json = json.loads(ONOS1_mastership)
-        old_json = json.loads(mastership_state)
-        mastership_check = main.TRUE
-        for i in range(1,29):
-            switchDPID = str(main.Mininet1.getSwitchDPID(switch="s"+str(i)))
+        currentJson = json.loads( ONOS1Mastership )
+        oldJson = json.loads( mastershipState )
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            switchDPID = str(
+                main.Mininet1.getSwitchDPID(
+                    switch="s" +
+                    str( i ) ) )
 
-            current = [switch['master'] for switch in current_json if switchDPID in switch['id']]
-            old = [switch['master'] for switch in old_json if switchDPID in switch['id']]
+            current = [ switch[ 'master' ] for switch in currentJson
+                        if switchDPID in switch[ 'id' ] ]
+            old = [ switch[ 'master' ] for switch in oldJson
+                    if switchDPID in switch[ 'id' ] ]
             if current == old:
-                mastership_check = mastership_check and main.TRUE
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                main.log.warn("Mastership of switch %s changed" % switchDPID)
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Mastership of Switches was not changed")
-        utilities.assert_equals(expect=main.TRUE,actual=mastership_check,
-                onpass="Mastership of Switches was not changed",
-                onfail="Mastership of some switches changed")
-        mastership_check = mastership_check and consistent_mastership
+                main.log.warn( "Mastership of switch %s changed" % switchDPID )
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Mastership of Switches was not changed" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Mastership of Switches was not changed",
+            onfail="Mastership of some switches changed" )
+        mastershipCheck = mastershipCheck and consistentMastership
 
-
-
-        main.step("Get the intents and compare across all nodes")
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        ONOS2_intents = main.ONOScli2.intents( json_format=True )
-        ONOS3_intents = main.ONOScli3.intents( json_format=True )
-        ONOS4_intents = main.ONOScli4.intents( json_format=True )
-        ONOS5_intents = main.ONOScli5.intents( json_format=True )
-        ONOS6_intents = main.ONOScli6.intents( json_format=True )
-        ONOS7_intents = main.ONOScli7.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents\
-                or "Error" in ONOS2_intents or not ONOS2_intents\
-                or "Error" in ONOS3_intents or not ONOS3_intents\
-                or "Error" in ONOS4_intents or not ONOS4_intents\
-                or "Error" in ONOS5_intents or not ONOS5_intents\
-                or "Error" in ONOS6_intents or not ONOS6_intents\
-                or "Error" in ONOS7_intents or not ONOS7_intents:
-                    main.log.report("Error in getting ONOS intents")
-                    main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
-                    main.log.warn("ONOS2 intents response: " + repr(ONOS2_intents))
-                    main.log.warn("ONOS3 intents response: " + repr(ONOS3_intents))
-                    main.log.warn("ONOS4 intents response: " + repr(ONOS4_intents))
-                    main.log.warn("ONOS5 intents response: " + repr(ONOS5_intents))
-                    main.log.warn("ONOS6 intents response: " + repr(ONOS6_intents))
-                    main.log.warn("ONOS7 intents response: " + repr(ONOS7_intents))
-        elif ONOS1_intents == ONOS2_intents\
-                and ONOS1_intents == ONOS3_intents\
-                and ONOS1_intents == ONOS4_intents\
-                and ONOS1_intents == ONOS5_intents\
-                and ONOS1_intents == ONOS6_intents\
-                and ONOS1_intents == ONOS7_intents:
-                    intent_check = main.TRUE
-                    main.log.report("Intents are consistent across all ONOS nodes")
+        main.step( "Get the intents and compare across all nodes" )
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        ONOS2Intents = main.ONOScli2.intents( jsonFormat=True )
+        ONOS3Intents = main.ONOScli3.intents( jsonFormat=True )
+        ONOS4Intents = main.ONOScli4.intents( jsonFormat=True )
+        ONOS5Intents = main.ONOScli5.intents( jsonFormat=True )
+        ONOS6Intents = main.ONOScli6.intents( jsonFormat=True )
+        ONOS7Intents = main.ONOScli7.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents\
+                or "Error" in ONOS2Intents or not ONOS2Intents\
+                or "Error" in ONOS3Intents or not ONOS3Intents\
+                or "Error" in ONOS4Intents or not ONOS4Intents\
+                or "Error" in ONOS5Intents or not ONOS5Intents\
+                or "Error" in ONOS6Intents or not ONOS6Intents\
+                or "Error" in ONOS7Intents or not ONOS7Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
+            main.log.warn( "ONOS2 intents response: " + repr( ONOS2Intents ) )
+            main.log.warn( "ONOS3 intents response: " + repr( ONOS3Intents ) )
+            main.log.warn( "ONOS4 intents response: " + repr( ONOS4Intents ) )
+            main.log.warn( "ONOS5 intents response: " + repr( ONOS5Intents ) )
+            main.log.warn( "ONOS6 intents response: " + repr( ONOS6Intents ) )
+            main.log.warn( "ONOS7 intents response: " + repr( ONOS7Intents ) )
+        elif ONOS1Intents == ONOS2Intents\
+                and ONOS1Intents == ONOS3Intents\
+                and ONOS1Intents == ONOS4Intents\
+                and ONOS1Intents == ONOS5Intents\
+                and ONOS1Intents == ONOS6Intents\
+                and ONOS1Intents == ONOS7Intents:
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
         else:
-            main.log.warn("ONOS1 intents: ") 
-            print json.dumps(json.loads(ONOS1_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS2 intents: ")
-            print json.dumps(json.loads(ONOS2_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS3 intents: ")
-            print json.dumps(json.loads(ONOS3_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS4 intents: ")
-            print json.dumps(json.loads(ONOS4_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS5 intents: ")
-            print json.dumps(json.loads(ONOS5_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS6 intents: ")
-            print json.dumps(json.loads(ONOS6_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-            main.log.warn("ONOS7 intents: ")
-            print json.dumps(json.loads(ONOS7_intents),
-                sort_keys=True, indent=4, separators=(',', ': '))
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            main.log.warn( "ONOS1 intents: " )
+            print json.dumps( json.loads( ONOS1Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS2 intents: " )
+            print json.dumps( json.loads( ONOS2Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS3 intents: " )
+            print json.dumps( json.loads( ONOS3Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS4 intents: " )
+            print json.dumps( json.loads( ONOS4Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS5 intents: " )
+            print json.dumps( json.loads( ONOS5Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS6 intents: " )
+            print json.dumps( json.loads( ONOS6Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+            main.log.warn( "ONOS7 intents: " )
+            print json.dumps( json.loads( ONOS7Intents ), sort_keys=True,
+                              indent=4, separators=( ',', ': ' ) )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-        #NOTE: Hazelcast has no durability, so intents are lost
-        main.step("Compare current intents with intents before the failure")
-        #NOTE: this requires case 5 to pass for intent_state to be set.
+        # NOTE: Hazelcast has no durability, so intents are lost across system
+        # restarts
+        main.step( "Compare current intents with intents before the failure" )
+        # NOTE: this requires case 5 to pass for intentState to be set.
         #      maybe we should stop the test if that fails?
-        if intent_state == ONOS1_intents:
-            same_intents = main.TRUE
-            main.log.report("Intents are consistent with before failure")
-        #TODO: possibly the states have changed? we may need to figure out what the aceptable states are
+        if intentState == ONOS1Intents:
+            sameIntents = main.TRUE
+            main.log.report( "Intents are consistent with before failure" )
+        # TODO: possibly the states have changed? we may need to figure out
+        # what the aceptable states are
         else:
-            same_intents = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=same_intents,
-                onpass="Intents are consistent with before failure",
-                onfail="The Intents changed during failure")
-        intent_check = intent_check and same_intents
+            try:
+                main.log.warn( "ONOS1 intents: " )
+                print json.dumps( json.loads( ONOS1Intents ),
+                                  sort_keys=True, indent=4,
+                                  separators=( ',', ': ' ) )
+            except:
+                pass
+            sameIntents = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=sameIntents,
+            onpass="Intents are consistent with before failure",
+            onfail="The Intents changed during failure" )
+        intentCheck = intentCheck and sameIntents
 
+        main.step( "Get the OF Table entries and compare to before " +
+                   "component failure" )
+        FlowTables = main.TRUE
+        flows2 = []
+        for i in range( 28 ):
+            main.log.info( "Checking flow table on s" + str( i + 1 ) )
+            tmpFlows = main.Mininet2.getFlowTable( 1.3, "s" + str( i + 1 ) )
+            flows2.append( tmpFlows )
+            tempResult = main.Mininet2.flowComp(
+                flow1=flows[ i ],
+                flow2=tmpFlows )
+            FlowTables = FlowTables and tempResult
+            if FlowTables == main.FALSE:
+                main.log.info( "Differences in flow table for switch: s" +
+                               str( i + 1 ) )
+        if FlowTables == main.TRUE:
+            main.log.report( "No changes were found in the flow tables" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=FlowTables,
+            onpass="No changes were found in the flow tables",
+            onfail="Changes were found in the flow tables" )
 
-
-        main.step("Get the OF Table entries and compare to before component failure")
-        Flow_Tables = main.TRUE
-        flows2=[]
-        for i in range(28):
-            main.log.info("Checking flow table on s" + str(i+1))
-            tmp_flows = main.Mininet2.get_flowTable(1.3, "s"+str(i+1))
-            flows2.append(tmp_flows)
-            temp_result = main.Mininet2.flow_comp(flow1=flows[i],flow2=tmp_flows)
-            Flow_Tables = Flow_Tables and temp_result
-            if Flow_Tables == main.FALSE:
-                main.log.info("Differences in flow table for switch: "+str(i+1))
-        if Flow_Tables == main.TRUE:
-            main.log.report("No changes were found in the flow tables")
-        utilities.assert_equals(expect=main.TRUE,actual=Flow_Tables,
-                onpass="No changes were found in the flow tables",
-                onfail="Changes were found in the flow tables")
-
-        main.step("Check the continuous pings to ensure that no packets were dropped during component failure")
-        #FIXME: This check is always failing. Investigate cause
-        #NOTE:  this may be something to do with file permsissions
+        main.step( "Check the continuous pings to ensure that no packets " +
+                   "were dropped during component failure" )
+        # FIXME: This check is always failing. Investigate cause
+        # NOTE:  this may be something to do with file permsissions
         #       or slight change in format
-        main.Mininet2.pingKill(main.params['TESTONUSER'], main.params['TESTONIP'])
-        Loss_In_Pings = main.FALSE 
-        #NOTE: checkForLoss returns main.FALSE with 0% packet loss
-        for i in range(8,18):
-            main.log.info("Checking for a loss in pings along flow from s" + str(i))
-            Loss_In_Pings = main.Mininet2.checkForLoss("/tmp/ping.h"+str(i)) or Loss_In_Pings
-        if Loss_In_Pings == main.TRUE:
-            main.log.info("Loss in ping detected")
-        elif Loss_In_Pings == main.ERROR:
-            main.log.info("There are multiple mininet process running")
-        elif Loss_In_Pings == main.FALSE:
-            main.log.info("No Loss in the pings")
-            main.log.report("No loss of dataplane connectivity")
-        utilities.assert_equals(expect=main.FALSE,actual=Loss_In_Pings,
-                onpass="No Loss of connectivity",
-                onfail="Loss of dataplane connectivity detected")
+        main.Mininet2.pingKill(
+            main.params[ 'TESTONUSER' ],
+            main.params[ 'TESTONIP' ] )
+        LossInPings = main.FALSE
+        # NOTE: checkForLoss returns main.FALSE with 0% packet loss
+        for i in range( 8, 18 ):
+            main.log.info(
+                "Checking for a loss in pings along flow from s" +
+                str( i ) )
+            LossInPings = main.Mininet2.checkForLoss(
+                "/tmp/ping.h" +
+                str( i ) ) or LossInPings
+        if LossInPings == main.TRUE:
+            main.log.info( "Loss in ping detected" )
+        elif LossInPings == main.ERROR:
+            main.log.info( "There are multiple mininet process running" )
+        elif LossInPings == main.FALSE:
+            main.log.info( "No Loss in the pings" )
+            main.log.report( "No loss of dataplane connectivity" )
+        utilities.assert_equals(
+            expect=main.FALSE,
+            actual=LossInPings,
+            onpass="No Loss of connectivity",
+            onfail="Loss of dataplane connectivity detected" )
 
-        #Test of LeadershipElection
-        #NOTE: this only works for the sanity test. In case of failures, leader will likely change
-        leader = ONOS1_ip
-        leader_result = main.TRUE
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leaderN = node.election_test_leader()
-            #verify leader is ONOS1
+        # Test of LeadershipElection
+        # NOTE: this only works for the sanity test. In case of failures,
+        # leader will likely change
+        leader = ONOS1Ip
+        leaderResult = main.TRUE
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderN = node.electionTestLeader()
+            # verify leader is ONOS1
             if leaderN == leader:
-                #all is well
-                #NOTE: In failure scenario, this could be a new node, maybe check != ONOS1
+                # all is well
+                # NOTE: In failure scenario, this could be a new node, maybe
+                # check != ONOS1
                 pass
             elif leaderN == main.FALSE:
-                #error in  response
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
+                # error in  response
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function," +
+                                 " check the error logs" )
+                leaderResult = main.FALSE
             elif leader != leaderN:
-                leader_result = main.FALSE
-                main.log.report("ONOS" + str(controller) + " sees "+str(leaderN) +
-                        " as the leader of the election app. Leader should be "+str(leader) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was re-elected if applicable)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                leaderResult = main.FALSE
+                main.log.report( "ONOS" + str( controller ) + " sees " +
+                                 str( leaderN ) +
+                                 " as the leader of the election app. " +
+                                 "Leader should be " + str( leader ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was re-elected if applicable )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        result = mastership_check and intent_check and Flow_Tables and (not Loss_In_Pings) and roles_not_null\
-                and leader_result
-        result = int(result)
+        result = mastershipCheck and intentCheck and FlowTables and\
+            ( not LossInPings ) and rolesNotNull and leaderResult
+        result = int( result )
         if result == main.TRUE:
-            main.log.report("Constant State Tests Passed")
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Constant State Tests Passed",
-                onfail="Constant state tests failed")
+            main.log.report( "Constant State Tests Passed" )
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Constant State Tests Passed",
+                                onfail="Constant state tests failed" )
 
-    def CASE8 (self,main):
-        '''
+    def CASE8( self, main ):
+        """
         Compare topo
-        '''
+        """
         import sys
-        sys.path.append("/home/admin/sts") # Trying to remove some dependancies, #FIXME add this path to params
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # FIXME add this path to params
+        sys.path.append( "/home/admin/sts" )
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
         import json
         import time
 
-        description ="Compare ONOS Topology view to Mininet topology"
-        main.case(description)
-        main.log.report(description)
-        main.step("Create TestONTopology object")
+        description = "Compare ONOS Topology view to Mininet topology"
+        main.case( description )
+        main.log.report( description )
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         while True:
             temp = ()
-            if ('ip' + str(count)) in main.params['CTRL']:
-                temp = temp + (getattr(main,('ONOS' + str(count))),)
-                temp = temp + ("ONOS"+str(count),)
-                temp = temp + (main.params['CTRL']['ip'+str(count)],)
-                temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-                ctrls.append(temp)
+            if ( 'ip' + str( count ) ) in main.params[ 'CTRL' ]:
+                temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+                temp = temp + ( "ONOS" + str( count ), )
+                temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+                temp = temp + \
+                    ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+                ctrls.append( temp )
                 count = count + 1
             else:
                 break
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        topo_result = main.FALSE
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        topoResult = main.FALSE
         elapsed = 0
         count = 0
-        main.step("Collecting topology information from ONOS")
-        start_time = time.time()
-        while topo_result == main.FALSE and elapsed < 60:
+        main.step( "Collecting topology information from ONOS" )
+        startTime = time.time()
+        while topoResult == main.FALSE and elapsed < 60:
             count = count + 1
             if count > 1:
-                MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
-            cli_start = time.time()
+                # TODO: Depricate STS usage
+                MNTopo = TestONTopology(
+                    main.Mininet1,
+                    ctrls )
+            cliStart = time.time()
             devices = []
             devices.append( main.ONOScli1.devices() )
             devices.append( main.ONOScli2.devices() )
@@ -1323,490 +1515,578 @@
             clusters.append( main.ONOScli6.clusters() )
             clusters.append( main.ONOScli7.clusters() )
             paths = []
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli1.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli2.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli3.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli4.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli5.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli6.topology() )
-            paths.append( temp_topo.get('paths', False) )
-            temp_topo = main.ONOSbench.get_topology( main.ONOScli7.topology() )
-            paths.append( temp_topo.get('paths', False) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli1.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli2.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli3.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli4.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli5.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli6.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
+            tempTopo = main.ONOSbench.getTopology( main.ONOScli7.topology() )
+            paths.append( tempTopo.get( 'paths', False ) )
 
+            elapsed = time.time() - startTime
+            cliTime = time.time() - cliStart
+            print "CLI time: " + str( cliTime )
 
-            elapsed = time.time() - start_time
-            cli_time = time.time() - cli_start
-            print "CLI time: " + str(cli_time)
-
-            for controller in range(num_controllers):
-                if devices[controller] or not "Error" in devices[controller]:
-                    current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+            for controller in range( numControllers ):
+                controllerStr = str( controller + 1 )
+                if devices[ controller ] or "Error" not in devices[
+                        controller ]:
+                    currentDevicesResult = main.Mininet1.compareSwitches(
+                        MNTopo,
+                        json.loads(
+                            devices[ controller ] ) )
                 else:
-                    current_devices_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                        onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                    currentDevicesResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentDevicesResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " Switches view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " Switches view is incorrect" )
 
-                if ports[controller] or not "Error" in ports[controller]:
-                    current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+                if ports[ controller ] or "Error" not in ports[ controller ]:
+                    currentPortsResult = main.Mininet1.comparePorts(
+                        MNTopo,
+                        json.loads(
+                            ports[ controller ] ) )
                 else:
-                    current_ports_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                        onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                    currentPortsResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentPortsResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " ports view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " ports view is incorrect" )
 
-                if links[controller] or not "Error" in links[controller]:
-                    current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+                if links[ controller ] or "Error" not in links[ controller ]:
+                    currentLinksResult = main.Mininet1.compareLinks(
+                        MNTopo,
+                        json.loads(
+                            links[ controller ] ) )
                 else:
-                    current_links_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                        onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+                    currentLinksResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentLinksResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " links view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " links view is incorrect" )
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-            #Compare json objects for hosts, dataplane clusters and paths
+            # Compare json objects for hosts, dataplane clusters and paths
 
-            #hosts
-            consistent_hosts_result = main.TRUE
+            # hosts
+            consistentHostsResult = main.TRUE
             for controller in range( len( hosts ) ):
-                if not "Error" in hosts[controller]:
-                    if hosts[controller] == hosts[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in hosts[ controller ]:
+                    if hosts[ controller ] == hosts[ 0 ]:
                         continue
-                    else:#hosts not consistent
-                        main.log.report("hosts from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        main.log.warn( repr( hosts[controller] ) )
-                        consistent_hosts_result = main.FALSE
+                    else:  # hosts not consistent
+                        main.log.report( "hosts from ONOS" + controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        main.log.warn( repr( hosts[ controller ] ) )
+                        consistentHostsResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting ONOS hosts from ONOS" + str(controller + 1) )
-                    consistent_hosts_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " hosts response: " + repr(hosts[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_hosts_result,
-                    onpass="Hosts view is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different views of hosts")
+                    main.log.report( "Error in getting ONOS hosts from ONOS" +
+                                     controllerStr )
+                    consistentHostsResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " hosts response: " +
+                                   repr( hosts[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentHostsResult,
+                onpass="Hosts view is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different views of hosts" )
 
-            #Strongly connected clusters of devices
-            consistent_clusters_result = main.TRUE
+            # Strongly connected clusters of devices
+            consistentClustersResult = main.TRUE
             for controller in range( len( clusters ) ):
-                if not "Error" in clusters[controller]:
-                    if clusters[controller] == clusters[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in clusters[ controller ]:
+                    if clusters[ controller ] == clusters[ 0 ]:
                         continue
-                    else:#clusters not consistent
-                        main.log.report("clusters from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        consistent_clusters_result = main.FALSE
+                    else:  # clusters not consistent
+                        main.log.report( "clusters from ONOS" +
+                                         controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        consistentClustersResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting dataplane clusters from ONOS" + str(controller + 1) )
-                    consistent_clusters_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " clusters response: " + repr(clusters[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_clusters_result,
-                    onpass="Clusters view is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different views of clusters")
-            num_clusters =  len(json.loads(clusters[0])) #there should always only be one cluster
-            utilities.assert_equals(expect = 1, actual = num_clusters,
-                    onpass="ONOS shows 1 SCC",
-                    onfail="ONOS shows "+str(num_clusters) +" SCCs")
+                    main.log.report( "Error in getting dataplane clusters " +
+                                     "from ONOS" + controllerStr )
+                    consistentClustersResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " clusters response: " +
+                                   repr( clusters[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentClustersResult,
+                onpass="Clusters view is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different views of clusters" )
+            # there should always only be one cluster
+            numClusters = len( json.loads( clusters[ 0 ] ) )
+            utilities.assert_equals(
+                expect=1,
+                actual=numClusters,
+                onpass="ONOS shows 1 SCC",
+                onfail="ONOS shows " +
+                str( numClusters ) +
+                " SCCs" )
 
-
-            #paths
-            consistent_paths_result = main.TRUE
+            # paths
+            consistentPathsResult = main.TRUE
             for controller in range( len( paths ) ):
-                if not "Error" in paths[controller]:
-                    if paths[controller] == paths[0]:
+                controllerStr = str( controller + 1 )
+                if "Error" not in paths[ controller ]:
+                    if paths[ controller ] == paths[ 0 ]:
                         continue
-                    else:#paths not consistent
-                        main.log.report("paths from ONOS" + str(controller + 1) + " is inconsistent with ONOS1")
-                        consistent_paths_result = main.FALSE
+                    else:  # paths not consistent
+                        main.log.report( "paths from ONOS" + controllerStr +
+                                         " is inconsistent with ONOS1" )
+                        consistentPathsResult = main.FALSE
 
                 else:
-                    main.log.report("Error in getting paths from ONOS" + str(controller + 1) )
-                    consistent_paths_result = main.FALSE
-                    main.log.warn("ONOS" + str(controller + 1) + " paths response: " + repr(paths[controller]) )
-            utilities.assert_equals(expect = main.TRUE,actual=consistent_paths_result,
-                    onpass="Paths count is consistent across all ONOS nodes",
-                    onfail="ONOS nodes have different counts of paths")
+                    main.log.report( "Error in getting paths from ONOS" +
+                                     controllerStr )
+                    consistentPathsResult = main.FALSE
+                    main.log.warn( "ONOS" + controllerStr +
+                                   " paths response: " +
+                                   repr( paths[ controller ] ) )
+            utilities.assert_equals(
+                expect=main.TRUE,
+                actual=consistentPathsResult,
+                onpass="Paths count is consistent across all ONOS nodes",
+                onfail="ONOS nodes have different counts of paths" )
 
+            topoResult = ( devicesResults and portsResults and linksResults
+                           and consistentHostsResult
+                           and consistentClustersResult
+                           and consistentPathsResult )
 
-            topo_result = devices_results and ports_results and links_results\
-                    and consistent_hosts_result and consistent_clusters_result and consistent_paths_result
+        topoResult = topoResult and int( count <= 2 )
+        note = "note it takes about " + str( int( cliTime ) ) + \
+            " seconds for the test to make all the cli calls to fetch " +\
+            "the topology from each ONOS instance"
+        main.log.report(
+            "Very crass estimate for topology discovery/convergence( " +
+            str( note ) + " ): " + str( elapsed ) + " seconds, " +
+            str( count ) + " tries" )
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
+        if topoResult == main.TRUE:
+            main.log.report( "ONOS topology view matches Mininet topology" )
 
-        topo_result = topo_result and int(count <= 2)
-        note = "note it takes about "+str( int(cli_time) )+" seconds for the test to make all the cli calls to fetch the topology from each ONOS instance"
-        main.log.report("Very crass estimate for topology discovery/convergence("+ str(note) + "): " +\
-                str(elapsed) + " seconds, " + str(count) +" tries" )
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
-        if topo_result == main.TRUE:
-            main.log.report("ONOS topology view matches Mininet topology")
-
-
-    def CASE9 (self,main):
-        '''
+    def CASE9( self, main ):
+        """
         Link s3-s28 down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Turn off a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Turn off a link to ensure that Link Discovery " +\
+            "is working properly"
+        main.log.report( description )
+        main.case( description )
 
+        main.step( "Kill Link between s3 and s28" )
+        LinkDown = main.Mininet1.link( END1="s3", END2="s28", OPTION="down" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link down to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkDown,
+                                onpass="Link down succesful",
+                                onfail="Failed to bring link down" )
+        # TODO do some sort of check here
 
-        main.step("Kill Link between s3 and s28")
-        Link_Down = main.Mininet1.link(END1="s3",END2="s28",OPTION="down")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link down to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Down,
-                onpass="Link down succesful",
-                onfail="Failed to bring link down")
-        #TODO do some sort of check here
-
-    def CASE10 (self,main):
-        '''
+    def CASE10( self, main ):
+        """
         Link s3-s28 up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Restore a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Restore a link to ensure that Link Discovery is " + \
+            "working properly"
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Bring link between s3 and s28 back up")
-        Link_Up = main.Mininet1.link(END1="s3",END2="s28",OPTION="up")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link up to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Up,
-                onpass="Link up succesful",
-                onfail="Failed to bring link up")
-        #TODO do some sort of check here
+        main.step( "Bring link between s3 and s28 back up" )
+        LinkUp = main.Mininet1.link( END1="s3", END2="s28", OPTION="up" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link up to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkUp,
+                                onpass="Link up succesful",
+                                onfail="Failed to bring link up" )
+        # TODO do some sort of check here
 
-
-    def CASE11 (self, main) :
-        '''
+    def CASE11( self, main ):
+        """
         Switch Down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
 
         description = "Killing a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
 
-        #TODO: Make this switch parameterizable
-        main.step("Kill s28 ")
-        main.log.report("Deleting s28")
-        main.Mininet1.del_switch("s28")
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch down to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        # TODO: Make this switch parameterizable
+        main.step( "Kill " + switch )
+        main.log.report( "Deleting " + switch )
+        main.Mininet1.delSwitch( switch )
+        main.log.info( "Waiting " + str( switchSleep ) +
+                       " seconds for switch down to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == False:
+        if device and device[ 'available' ] is False:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Kill switch succesful",
-                onfail="Failed to kill switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Kill switch succesful",
+                                onfail="Failed to kill switch?" )
 
-    def CASE12 (self, main) :
-        '''
+    def CASE12( self, main ):
+        """
         Switch Up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
+        links = main.params[ 'kill' ][ 'links' ].split()
         description = "Adding a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Add back s28")
-        main.log.report("Adding back s28")
-        main.Mininet1.add_switch("s28", dpid = '0000000000002800')
-        #TODO: New dpid or same? Ask Thomas?
-        main.Mininet1.add_link('s28', 's3')
-        main.Mininet1.add_link('s28', 's6')
-        main.Mininet1.add_link('s28', 'h28')
-        main.Mininet1.assign_sw_controller(sw="28",count=num_controllers,
-                ip1=ONOS1_ip,port1=ONOS1_port,
-                ip2=ONOS2_ip,port2=ONOS2_port,
-                ip3=ONOS3_ip,port3=ONOS3_port,
-                ip4=ONOS4_ip,port4=ONOS4_port,
-                ip5=ONOS5_ip,port5=ONOS5_port,
-                ip6=ONOS6_ip,port6=ONOS6_port,
-                ip7=ONOS7_ip,port7=ONOS7_port)
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch up to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        main.step( "Add back " + switch )
+        main.log.report( "Adding back " + switch )
+        main.Mininet1.addSwitch( switch, dpid=switchDPID )
+        # TODO: New dpid or same? Ask Thomas?
+        for peer in links:
+            main.Mininet1.addLink( switch, peer )
+        main.Mininet1.assignSwController(
+            sw=switch.split( 's' )[ 1 ],
+            count=numControllers,
+            ip1=ONOS1Ip,
+            port1=ONOS1Port,
+            ip2=ONOS2Ip,
+            port2=ONOS2Port,
+            ip3=ONOS3Ip,
+            port3=ONOS3Port,
+            ip4=ONOS4Ip,
+            port4=ONOS4Port,
+            ip5=ONOS5Ip,
+            port5=ONOS5Port,
+            ip6=ONOS6Ip,
+            port6=ONOS6Port,
+            ip7=ONOS7Ip,
+            port7=ONOS7Port )
+        main.log.info(
+            "Waiting " +
+            str( switchSleep ) +
+            " seconds for switch up to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == True:
+        if device and device[ 'available' ]:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="add switch succesful",
-                onfail="Failed to add switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="add switch succesful",
+                                onfail="Failed to add switch?" )
 
-    def CASE13 (self, main) :
-        '''
+    def CASE13( self, main ):
+        """
         Clean up
-        '''
+        """
         import os
         import time
-        #printing colors to terminal
+        # TODO: make use of this elsewhere
+        ips = []
+        ips.append( ONOS1Ip )
+        ips.append( ONOS2Ip )
+        ips.append( ONOS3Ip )
+        ips.append( ONOS4Ip )
+        ips.append( ONOS5Ip )
+        ips.append( ONOS6Ip )
+        ips.append( ONOS7Ip )
+
+        # printing colors to terminal
         colors = {}
-        colors['cyan']   = '\033[96m'
-        colors['purple'] = '\033[95m'
-        colors['blue']   = '\033[94m'
-        colors['green']  = '\033[92m'
-        colors['yellow'] = '\033[93m'
-        colors['red']    = '\033[91m'
-        colors['end']    = '\033[0m'
+        colors[ 'cyan' ] = '\033[96m'
+        colors[ 'purple' ] = '\033[95m'
+        colors[ 'blue' ] = '\033[94m'
+        colors[ 'green' ] = '\033[92m'
+        colors[ 'yellow' ] = '\033[93m'
+        colors[ 'red' ] = '\033[91m'
+        colors[ 'end' ] = '\033[0m'
         description = "Test Cleanup"
-        main.log.report(description)
-        main.case(description)
-        main.step("Killing tcpdumps")
-        main.Mininet2.stop_tcpdump()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Killing tcpdumps" )
+        main.Mininet2.stopTcpdump()
 
-        main.step("Checking ONOS Logs for errors")
-        print colors['purple'] + "Checking logs for errors on ONOS1:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS1_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS2:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS2_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS3:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS3_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS4:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS4_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS5:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS5_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS6:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS6_ip)
-        print colors['purple'] + "Checking logs for errors on ONOS7:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS7_ip)
+        main.step( "Checking ONOS Logs for errors" )
+        for i in range( 7 ):
+            print colors[ 'purple' ] + "Checking logs for errors on " + \
+                "ONOS" + str( i + 1 ) + ":" + colors[ 'end' ]
+            print main.ONOSbench.checkLogs( ips[ i ] )
 
-        main.step("Copying MN pcap and ONOS log files to test station")
+        main.step( "Copying MN pcap and ONOS log files to test station" )
         testname = main.TEST
-        teststation_user = main.params['TESTONUSER']
-        teststation_IP = main.params['TESTONIP']
-        #NOTE: MN Pcap file is being saved to ~/packet_captures
+        teststationUser = main.params[ 'TESTONUSER' ]
+        teststationIP = main.params[ 'TESTONIP' ]
+        # NOTE: MN Pcap file is being saved to ~/packet_captures
         #       scp this file as MN and TestON aren't necessarily the same vm
-        #FIXME: scp
-        #####mn files
-        #TODO: Load these from params
-        #NOTE: must end in /
-        log_folder = "/opt/onos/log/"
-        log_files = ["karaf.log", "karaf.log.1"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS2_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS2-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS3_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS3-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS4_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS4-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS5_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS5-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS6_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS6-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS7_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS7-"+f )
+        # FIXME: scp
+        # mn files
+        # TODO: Load these from params
+        # NOTE: must end in /
+        logFolder = "/opt/onos/log/"
+        logFiles = [ "karaf.log", "karaf.log.1" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            for i in range( 7 ):
+                main.ONOSbench.handle.sendline( "scp sdn@" + ips[ i ] + ":" +
+                                                logFolder + f + " " +
+                                                teststationUser + "@" +
+                                                teststationIP + ":" +
+                                                dstDir + str( testname ) +
+                                                "-ONOS" + str( i + 1 ) + "-" +
+                                                f )
+        # std*.log's
+        # NOTE: must end in /
+        logFolder = "/opt/onos/var/"
+        logFiles = [ "stderr.log", "stdout.log" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            for i in range( 7 ):
+                main.ONOSbench.handle.sendline( "scp sdn@" + ips[ i ] + ":" +
+                                                logFolder + f + " " +
+                                                teststationUser + "@" +
+                                                teststationIP + ":" +
+                                                dstDir + str( testname ) +
+                                                "-ONOS" + str( i + 1 ) + "-" +
+                                                f )
+        # sleep so scp can finish
+        time.sleep( 10 )
+        main.step( "Packing and rotating pcap archives" )
+        os.system( "~/TestON/dependencies/rotate.sh " + str( testname ) )
 
-        #std*.log's
-        #NOTE: must end in /
-        log_folder = "/opt/onos/var/"
-        log_files = ["stderr.log", "stdout.log"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS2_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS2-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS3_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS3-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS4_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS4-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS5_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS5-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS6_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS6-"+f )
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS7_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS7-"+f )
+        # TODO: actually check something here
+        utilities.assert_equals( expect=main.TRUE, actual=main.TRUE,
+                                onpass="Test cleanup successful",
+                                onfail="Test cleanup NOT successful" )
 
-
-        #sleep so scp can finish
-        time.sleep(10)
-        main.step("Packing and rotating pcap archives")
-        os.system("~/TestON/dependencies/rotate.sh "+ str(testname))
-
-
-        #TODO: actually check something here
-        utilities.assert_equals(expect=main.TRUE, actual=main.TRUE,
-                onpass="Test cleanup successful",
-                onfail="Test cleanup NOT successful")
-
-    def CASE14 ( self, main ) :
-        '''
+    def CASE14( self, main ):
+        """
         start election app on all onos nodes
-        '''
-        leader_result = main.TRUE
-        #install app on onos 1
-        main.log.info("Install leadership election app")
-        main.ONOScli1.feature_install("onos-app-election")
-        #wait for election
-        #check for leader
-        leader = main.ONOScli1.election_test_leader()
-        #verify leader is ONOS1
-        if leader == ONOS1_ip:
-            #all is well
+        """
+        leaderResult = main.TRUE
+        # install app on onos 1
+        main.log.info( "Install leadership election app" )
+        main.ONOScli1.featureInstall( "onos-app-election" )
+        # wait for election
+        # check for leader
+        leader = main.ONOScli1.electionTestLeader()
+        # verify leader is ONOS1
+        if leader == ONOS1Ip:
+            # all is well
             pass
-        elif leader == None:
-            #No leader elected
-            main.log.report("No leader was elected")
-            leader_result = main.FALSE
+        elif leader is None:
+            # No leader elected
+            main.log.report( "No leader was elected" )
+            leaderResult = main.FALSE
         elif leader == main.FALSE:
-            #error in  response
-            #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-            main.log.report("Something is wrong with election_test_leader function, check the error logs")
-            leader_result = main.FALSE
+            # error in  response
+            # TODO: add check for "Command not found:" in the driver, this
+            # means the app isn't loaded
+            main.log.report( "Something is wrong with electionTestLeader" +
+                             " function, check the error logs" )
+            leaderResult = main.FALSE
         else:
-            #error in  response
-            main.log.report("Unexpected response from election_test_leader function:'"+str(leader)+"'")
-            leader_result = main.FALSE
+            # error in  response
+            main.log.report(
+                "Unexpected response from electionTestLeader function:'" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
 
-
-
-
-        #install on other nodes and check for leader.
-        #Should be onos1 and each app should show the same leader
-        for controller in range(2,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            node.feature_install("onos-app-election")
-            leaderN = node.election_test_leader()
-            #verify leader is ONOS1
-            if leaderN == ONOS1_ip:
-                #all is well
+        # install on other nodes and check for leader.
+        # Should be onos1 and each app should show the same leader
+        for controller in range( 2, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            node.featureInstall( "onos-app-election" )
+            leaderN = node.electionTestLeader()
+            # verify leader is ONOS1
+            if leaderN == ONOS1Ip:
+                # all is well
                 pass
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
             elif leader != leaderN:
-                leader_result = main.FALSE
-                main.log.report("ONOS" + str(controller) + " sees "+str(leaderN) +
-                        " as the leader of the election app. Leader should be "+str(leader) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a leader was elected)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                leaderResult = main.FALSE
+                main.log.report( "ONOS" + str( controller ) + " sees " +
+                                 str( leaderN ) +
+                                 " as the leader of the election app. Leader" +
+                                 " should be " +
+                                 str( leader ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a leader " +
+                             "was elected )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-    def CASE15 ( self, main ) :
-        '''
+    def CASE15( self, main ):
+        """
         Check that Leadership Election is still functional
-        '''
-        leader_result = main.TRUE
+        """
+        leaderResult = main.TRUE
         description = "Check that Leadership Election is still functional"
-        main.log.report(description)
-        main.case(description)
-        main.step("Find current leader and withdraw")
-        leader = main.ONOScli1.election_test_leader()
-        #TODO: do some sanity checking on leader before using it
-        withdraw_result = main.FALSE
-        if leader == ONOS1_ip:
-            old_leader = getattr( main, "ONOScli1" )
-        elif leader == ONOS2_ip:
-            old_leader = getattr( main, "ONOScli2" )
-        elif leader == ONOS3_ip:
-            old_leader = getattr( main, "ONOScli3" )
-        elif leader == ONOS4_ip:
-            old_leader = getattr( main, "ONOScli4" )
-        elif leader == ONOS5_ip:
-            old_leader = getattr( main, "ONOScli5" )
-        elif leader == ONOS6_ip:
-            old_leader = getattr( main, "ONOScli6" )
-        elif leader == ONOS7_ip:
-            old_leader = getattr( main, "ONOScli7" )
-        elif leader == None or leader == main.FALSE:
-            main.log.report("Leader for the election app should be an ONOS node,"\
-                    +"instead got '"+str(leader)+"'")
-            leader_result = main.FALSE
-        withdraw_result = old_leader.election_test_withdraw()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Find current leader and withdraw" )
+        leader = main.ONOScli1.electionTestLeader()
+        # TODO: do some sanity checking on leader before using it
+        withdrawResult = main.FALSE
+        if leader == ONOS1Ip:
+            oldLeader = getattr( main, "ONOScli1" )
+        elif leader == ONOS2Ip:
+            oldLeader = getattr( main, "ONOScli2" )
+        elif leader == ONOS3Ip:
+            oldLeader = getattr( main, "ONOScli3" )
+        elif leader == ONOS4Ip:
+            oldLeader = getattr( main, "ONOScli4" )
+        elif leader == ONOS5Ip:
+            oldLeader = getattr( main, "ONOScli5" )
+        elif leader == ONOS6Ip:
+            oldLeader = getattr( main, "ONOScli6" )
+        elif leader == ONOS7Ip:
+            oldLeader = getattr( main, "ONOScli7" )
+        elif leader is None or leader == main.FALSE:
+            main.log.report(
+                "Leader for the election app should be an ONOS node," +
+                "instead got '" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
+        withdrawResult = oldLeader.electionTestWithdraw()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=withdrawResult,
+            onpass="App was withdrawn from election",
+            onfail="App was not withdrawn from election" )
 
-
-        main.step("Make sure new leader is elected")
-        leader_list = []
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leader_list.append( node.election_test_leader() )
-        for leaderN in leader_list:
+        main.step( "Make sure new leader is elected" )
+        leaderList = []
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderList.append( node.electionTestLeader() )
+        for leaderN in leaderList:
             if leaderN == leader:
-                main.log.report("ONOS"+str(controller)+" still sees " + str(leader) +\
-                        " as leader after they withdrew")
-                leader_result = main.FALSE
+                main.log.report(
+                    "ONOS" +
+                    str( controller ) +
+                    " still sees " +
+                    str( leader ) +
+                    " as leader after they withdrew" )
+                leaderResult = main.FALSE
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
-        consistent_leader = main.FALSE
-        if len( set( leader_list ) ) == 1:
-            main.log.info("Each Election-app sees '"+str(leader_list[0])+"' as the leader")
-            consistent_leader = main.TRUE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, " +
+                                 "check the error logs" )
+                leaderResult = main.FALSE
+        consistentLeader = main.FALSE
+        if len( set( leaderList ) ) == 1:
+            main.log.info( "Each Election-app sees '" +
+                           str( leaderList[ 0 ] ) +
+                           "' as the leader" )
+            consistentLeader = main.TRUE
         else:
-            main.log.report("Inconsistent responses for leader of Election-app:")
-            for n in range(len(leader_list)):
-                main.log.report("ONOS" + str(n+1) + " response: " + str(leader_list[n]) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was elected when the old leader resigned)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+            main.log.report(
+                "Inconsistent responses for leader of Election-app:" )
+            for n in range( len( leaderList ) ):
+                main.log.report( "ONOS" + str( n + 1 ) + " response: " +
+                                 str( leaderList[ n ] ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was elected when the old leader " +
+                             "resigned )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        main.step("Run for election on old leader(just so everyone is in the hat)")
-        run_result = old_leader.election_test_run()
-        if consistent_leader == main.TRUE:
-            after_run = main.ONOScli1.election_test_leader()
-            #verify leader didn't just change
-            if after_run == leader_list[0]:
-                leader_result = main.TRUE
+        main.step(
+            "Run for election on old leader( just so everyone is in the hat )" )
+        runResult = oldLeader.electionTestRun()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=runResult,
+            onpass="App re-ran for election",
+            onfail="App failed to run for election" )
+        if consistentLeader == main.TRUE:
+            afterRun = main.ONOScli1.electionTestLeader()
+            # verify leader didn't just change
+            if afterRun == leaderList[ 0 ]:
+                leaderResult = main.TRUE
             else:
-                leader_result = main.FALSE
-        #TODO: assert on  run and withdraw results?
+                leaderResult = main.FALSE
+        # TODO: assert on  run and withdraw results?
 
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election after the old leader re-ran for election")
-
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election after " +
+                   "the old leader re-ran for election" )
diff --git a/TestON/tests/HATestSanity/HATestSanity.topo b/TestON/tests/HATestSanity/HATestSanity.topo
index 4d4156c..c24d546 100644
--- a/TestON/tests/HATestSanity/HATestSanity.topo
+++ b/TestON/tests/HATestSanity/HATestSanity.topo
@@ -162,10 +162,6 @@
             <type>RemoteMininetDriver</type>
             <connect_order>17</connect_order>
             <COMPONENTS>
-                # Specify the Option for mininet
-                <arg1> --custom ~/mininet/custom/topo-HA.py </arg1>
-                <arg2> --topo mytopo --arp</arg2>
-                <controller> remote </controller>
              </COMPONENTS>
         </Mininet2>
 
diff --git a/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params b/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params
index 95a75d7..6699caf 100644
--- a/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params
+++ b/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params
@@ -56,6 +56,11 @@
         <LinkDiscovery>.2</LinkDiscovery>
         <SwitchDiscovery>.2</SwitchDiscovery>
     </timers>
+    <kill>
+        <switch> s5 </switch>
+        <dpid> 0000000000005000 </dpid>
+        <links> h5 s2 s1 s6 </links>
+    </kill>
     <MNtcpdump>
         <intf>eth0</intf>
         <port> </port>
diff --git a/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.py b/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.py
index 51ac0f6..2aea5bf 100644
--- a/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.py
+++ b/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.py
@@ -1,4 +1,4 @@
-'''
+"""
 Description: This test is to determine if a single
     instance ONOS 'cluster' can handle a restart
 
@@ -18,14 +18,16 @@
 CASE13: Clean up
 CASE14: start election app on all onos nodes
 CASE15: Check that Leadership Election is still functional
-'''
+"""
+
+
 class HATestSingleInstanceRestart:
 
-    def __init__(self) :
+    def __init__( self ):
         self.default = ''
 
-    def CASE1(self,main) :
-        '''
+    def CASE1( self, main ):
+        """
         CASE1 is to compile ONOS and push it to the test machines
 
         Startup sequence:
@@ -37,934 +39,1076 @@
         NOTE: temporary - onos-remove-raft-logs
         onos-install -f
         onos-wait-for-start
-        '''
-        import time
-        main.log.report("ONOS Single node cluster restart HA test - initialization")
-        main.case("Setting up test environment")
+        """
+        main.log.report( "ONOS Single node cluster restart " +
+                         "HA test - initialization" )
+        main.case( "Setting up test environment" )
+        # TODO: save all the timers and output them for plotting
 
         # load some vairables from the params file
-        PULL_CODE = False
-        if main.params['Git'] == 'True':
-            PULL_CODE = True
-        cell_name = main.params['ENV']['cellName']
+        PULLCODE = False
+        if main.params[ 'Git' ] == 'True':
+            PULLCODE = True
 
-        #set global variables
-        global ONOS1_ip
-        global ONOS1_port
-        global ONOS2_ip
-        global ONOS2_port
-        global ONOS3_ip
-        global ONOS3_port
-        global ONOS4_ip
-        global ONOS4_port
-        global ONOS5_ip
-        global ONOS5_port
-        global ONOS6_ip
-        global ONOS6_port
-        global ONOS7_ip
-        global ONOS7_port
-        global num_controllers
+        cellName = main.params[ 'ENV' ][ 'cellName' ]
 
-        ONOS1_ip = main.params['CTRL']['ip1']
-        ONOS1_port = main.params['CTRL']['port1']
-        ONOS2_ip = main.params['CTRL']['ip2']
-        ONOS2_port = main.params['CTRL']['port2']
-        ONOS3_ip = main.params['CTRL']['ip3']
-        ONOS3_port = main.params['CTRL']['port3']
-        ONOS4_ip = main.params['CTRL']['ip4']
-        ONOS4_port = main.params['CTRL']['port4']
-        ONOS5_ip = main.params['CTRL']['ip5']
-        ONOS5_port = main.params['CTRL']['port5']
-        ONOS6_ip = main.params['CTRL']['ip6']
-        ONOS6_port = main.params['CTRL']['port6']
-        ONOS7_ip = main.params['CTRL']['ip7']
-        ONOS7_port = main.params['CTRL']['port7']
-        num_controllers = int(main.params['num_controllers'])
+        # set global variables
+        global ONOS1Ip
+        global ONOS1Port
+        global ONOS2Ip
+        global ONOS2Port
+        global ONOS3Ip
+        global ONOS3Port
+        global ONOS4Ip
+        global ONOS4Port
+        global ONOS5Ip
+        global ONOS5Port
+        global ONOS6Ip
+        global ONOS6Port
+        global ONOS7Ip
+        global ONOS7Port
+        global numControllers
 
+        ONOS1Ip = main.params[ 'CTRL' ][ 'ip1' ]
+        ONOS1Port = main.params[ 'CTRL' ][ 'port1' ]
+        ONOS2Ip = main.params[ 'CTRL' ][ 'ip2' ]
+        ONOS2Port = main.params[ 'CTRL' ][ 'port2' ]
+        ONOS3Ip = main.params[ 'CTRL' ][ 'ip3' ]
+        ONOS3Port = main.params[ 'CTRL' ][ 'port3' ]
+        ONOS4Ip = main.params[ 'CTRL' ][ 'ip4' ]
+        ONOS4Port = main.params[ 'CTRL' ][ 'port4' ]
+        ONOS5Ip = main.params[ 'CTRL' ][ 'ip5' ]
+        ONOS5Port = main.params[ 'CTRL' ][ 'port5' ]
+        ONOS6Ip = main.params[ 'CTRL' ][ 'ip6' ]
+        ONOS6Port = main.params[ 'CTRL' ][ 'port6' ]
+        ONOS7Ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS7Port = main.params[ 'CTRL' ][ 'port7' ]
+        numControllers = int( main.params[ 'num_controllers' ] )
 
-        main.step("Applying cell variable to environment")
-        cell_result = main.ONOSbench.set_cell(cell_name)
-        verify_result = main.ONOSbench.verify_cell()
+        main.step( "Applying cell variable to environment" )
+        cellResult = main.ONOSbench.setCell( cellName )
+        verifyResult = main.ONOSbench.verifyCell()
 
-        #FIXME:this is short term fix
-        main.log.report("Removing raft logs")
-        main.ONOSbench.onos_remove_raft_logs()
-        main.log.report("Uninstalling ONOS")
-        main.ONOSbench.onos_uninstall(ONOS1_ip)
-        main.ONOSbench.onos_uninstall(ONOS2_ip)
-        main.ONOSbench.onos_uninstall(ONOS3_ip)
-        main.ONOSbench.onos_uninstall(ONOS4_ip)
-        main.ONOSbench.onos_uninstall(ONOS5_ip)
-        main.ONOSbench.onos_uninstall(ONOS6_ip)
-        main.ONOSbench.onos_uninstall(ONOS7_ip)
+        # FIXME:this is short term fix
+        main.log.report( "Removing raft logs" )
+        main.ONOSbench.onosRemoveRaftLogs()
+        main.log.report( "Uninstalling ONOS" )
+        main.ONOSbench.onosUninstall( ONOS1Ip )
+        main.ONOSbench.onosUninstall( ONOS2Ip )
+        main.ONOSbench.onosUninstall( ONOS3Ip )
+        main.ONOSbench.onosUninstall( ONOS4Ip )
+        main.ONOSbench.onosUninstall( ONOS5Ip )
+        main.ONOSbench.onosUninstall( ONOS6Ip )
+        main.ONOSbench.onosUninstall( ONOS7Ip )
 
-        clean_install_result = main.TRUE
-        git_pull_result = main.TRUE
+        cleanInstallResult = main.TRUE
+        gitPullResult = main.TRUE
 
-        main.step("Compiling the latest version of ONOS")
-        if PULL_CODE:
-            main.step("Git checkout and pull master")
-            main.ONOSbench.git_checkout("master")
-            git_pull_result = main.ONOSbench.git_pull()
+        main.step( "Compiling the latest version of ONOS" )
+        if PULLCODE:
+            # TODO Configure branch in params
+            main.step( "Git checkout and pull master" )
+            main.ONOSbench.gitCheckout( "master" )
+            gitPullResult = main.ONOSbench.gitPull()
 
-            main.step("Using mvn clean & install")
-            clean_install_result = main.TRUE
-            if git_pull_result == main.TRUE:
-                clean_install_result = main.ONOSbench.clean_install()
+            main.step( "Using mvn clean & install" )
+            cleanInstallResult = main.TRUE
+
+            if gitPullResult == main.TRUE:
+                cleanInstallResult = main.ONOSbench.cleanInstall()
             else:
-                main.log.warn("Did not pull new code so skipping mvn "+ \
-                        "clean install")
-        main.ONOSbench.get_version(report=True)
+                main.log.warn( "Did not pull new code so skipping mvn " +
+                               "clean install" )
+        main.ONOSbench.getVersion( report=True )
 
-        cell_result = main.ONOSbench.set_cell("SingleHA")
-        verify_result = main.ONOSbench.verify_cell()
-        main.step("Creating ONOS package")
-        package_result = main.ONOSbench.onos_package()
+        cellResult = main.ONOSbench.setCell( "SingleHA" )
+        verifyResult = main.ONOSbench.verifyCell()
+        main.step( "Creating ONOS package" )
+        packageResult = main.ONOSbench.onosPackage()
 
-        main.step("Installing ONOS package")
-        onos1_install_result = main.ONOSbench.onos_install(options="-f",
-                node=ONOS1_ip)
+        main.step( "Installing ONOS package" )
+        onos1InstallResult = main.ONOSbench.onosInstall( options="-f",
+                                                           node=ONOS1Ip )
 
-
-        main.step("Checking if ONOS is up yet")
-        #TODO check bundle:list?
-        for i in range(2):
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            if onos1_isup:
+        main.step( "Checking if ONOS is up yet" )
+        # TODO check bundle:list?
+        for i in range( 2 ):
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            if onos1Isup:
                 break
-        if not onos1_isup:
-            main.log.report("ONOS1 didn't start!")
+        if not onos1Isup:
+            main.log.report( "ONOS1 didn't start!" )
 
-        # TODO: if it becomes an issue, we can retry this step  a few times
+        cliResult = main.ONOScli1.startOnosCli( ONOS1Ip )
 
+        main.step( "Start Packet Capture MN" )
+        main.Mininet2.startTcpdump(
+            str( main.params[ 'MNtcpdump' ][ 'folder' ] ) + str( main.TEST )
+            + "-MN.pcap",
+            intf=main.params[ 'MNtcpdump' ][ 'intf' ],
+            port=main.params[ 'MNtcpdump' ][ 'port' ] )
 
-        cli_result = main.ONOScli1.start_onos_cli(ONOS1_ip)
+        case1Result = ( cleanInstallResult and packageResult and
+                        cellResult and verifyResult and onos1InstallResult
+                        and onos1Isup and cliResult )
 
-        main.step("Start Packet Capture MN")
-        main.Mininet2.start_tcpdump(
-                str(main.params['MNtcpdump']['folder'])+str(main.TEST)+"-MN.pcap",
-                intf = main.params['MNtcpdump']['intf'],
-                port = main.params['MNtcpdump']['port'])
+        utilities.assert_equals( expect=main.TRUE, actual=case1Result,
+                                onpass="Test startup successful",
+                                onfail="Test startup NOT successful" )
 
-
-        case1_result = (clean_install_result and package_result and
-                cell_result and verify_result and onos1_install_result and
-                onos1_isup and cli_result)
-
-        utilities.assert_equals(expect=main.TRUE, actual=case1_result,
-                onpass="Test startup successful",
-                onfail="Test startup NOT successful")
-
-
-        if case1_result==main.FALSE:
+        if case1Result == main.FALSE:
             main.cleanup()
             main.exit()
 
-    def CASE2(self,main) :
-        '''
+    def CASE2( self, main ):
+        """
         Assign mastership to controllers
-        '''
-        import time
-        import json
+        """
         import re
 
-        main.log.report("Assigning switches to controllers")
-        main.case("Assigning Controllers")
-        main.step("Assign switches to controllers")
+        main.log.report( "Assigning switches to controllers" )
+        main.case( "Assigning Controllers" )
+        main.step( "Assign switches to controllers" )
 
-        for i in range (1,29):
-           main.Mininet1.assign_sw_controller(sw=str(i),
-                    ip1=ONOS1_ip,port1=ONOS1_port)
+        for i in range( 1, 29 ):
+            main.Mininet1.assignSwController(
+                sw=str( i ),
+                ip1=ONOS1Ip, port1=ONOS1Port )
 
-        mastership_check = main.TRUE
-        for i in range (1,29):
-            response = main.Mininet1.get_sw_controller("s"+str(i))
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            response = main.Mininet1.getSwController( "s" + str( i ) )
             try:
-                main.log.info(str(response))
+                main.log.info( str( response ) )
             except:
-                main.log.info(repr(response))
-            if re.search("tcp:"+ONOS1_ip,response):
-                mastership_check = mastership_check and main.TRUE
+                main.log.info( repr( response ) )
+            if re.search( "tcp:" + ONOS1Ip, response ):
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Switch mastership assigned correctly")
-        utilities.assert_equals(expect = main.TRUE,actual=mastership_check,
-                onpass="Switch mastership assigned correctly",
-                onfail="Switches not assigned correctly to controllers")
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Switch mastership assigned correctly" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Switch mastership assigned correctly",
+            onfail="Switches not assigned correctly to controllers" )
 
-
-
-    def CASE3(self,main) :
+    def CASE3( self, main ):
         """
         Assign intents
 
         """
-        #FIXME: we must reinstall intents until we have a persistant datastore!
+        # FIXME: we must reinstall intents until we have a persistant
+        # datastore!
         import time
-        import json
-        import re
-        main.log.report("Adding host intents")
-        main.case("Adding host Intents")
+        main.log.report( "Adding host intents" )
+        main.case( "Adding host Intents" )
 
-        main.step("Discovering  Hosts( Via pingall for now)")
-        #FIXME: Once we have a host discovery mechanism, use that instead
+        main.step( "Discovering  Hosts( Via pingall for now )" )
+        # FIXME: Once we have a host discovery mechanism, use that instead
 
-        #install onos-app-fwd
-        main.log.info("Install reactive forwarding app")
-        main.ONOScli1.feature_install("onos-app-fwd")
+        # install onos-app-fwd
+        main.log.info( "Install reactive forwarding app" )
+        main.ONOScli1.featureInstall( "onos-app-fwd" )
 
-        #REACTIVE FWD test
-        ping_result = main.FALSE
+        # REACTIVE FWD test
+        pingResult = main.FALSE
         time1 = time.time()
-        ping_result = main.Mininet1.pingall()
+        pingResult = main.Mininet1.pingall()
         time2 = time.time()
-        main.log.info("Time for pingall: %2f seconds" % (time2 - time1))
+        main.log.info( "Time for pingall: %2f seconds" % ( time2 - time1 ) )
 
-        #uninstall onos-app-fwd
-        main.log.info("Uninstall reactive forwarding app")
-        main.ONOScli1.feature_uninstall("onos-app-fwd")
-        #timeout for fwd flows
-        time.sleep(10)
+        # uninstall onos-app-fwd
+        main.log.info( "Uninstall reactive forwarding app" )
+        main.ONOScli1.featureUninstall( "onos-app-fwd" )
+        # timeout for fwd flows
+        time.sleep( 10 )
 
-        main.step("Add  host intents")
-        #TODO:  move the host numbers to params
-        import json
-        intents_json= json.loads(main.ONOScli1.hosts())
-        intent_add_result = True
-        for i in range(8,18):
-            main.log.info("Adding host intent between h"+str(i)+" and h"+str(i+10))
-            host1 =  "00:00:00:00:00:" + str(hex(i)[2:]).zfill(2).upper()
-            host2 =  "00:00:00:00:00:" + str(hex(i+10)[2:]).zfill(2).upper()
-            host1_id = main.ONOScli1.get_host(host1)['id']
-            host2_id = main.ONOScli1.get_host(host2)['id']
-            #NOTE: get host can return None
-            if host1_id and host2_id:
-                tmp_result = main.ONOScli1.add_host_intent(host1_id, host2_id )
+        main.step( "Add  host intents" )
+        # TODO:  move the host numbers to params
+        intentAddResult = True
+        for i in range( 8, 18 ):
+            main.log.info( "Adding host intent between h" + str( i ) +
+                           " and h" + str( i + 10 ) )
+            host1 = "00:00:00:00:00:" + \
+                str( hex( i )[ 2: ] ).zfill( 2 ).upper()
+            host2 = "00:00:00:00:00:" + \
+                str( hex( i + 10 )[ 2: ] ).zfill( 2 ).upper()
+            host1Id = main.ONOScli1.getHost( host1 )[ 'id' ]
+            host2Id = main.ONOScli1.getHost( host2 )[ 'id' ]
+            # NOTE: get host can return None
+            if host1Id and host2Id:
+                tmpResult = main.ONOScli1.addHostIntent(
+                    host1Id,
+                    host2Id )
             else:
-                main.log.error("Error, get_host() failed")
-                tmp_result = main.FALSE
-            intent_add_result = bool(intent_add_result and tmp_result)
-        utilities.assert_equals(expect=True, actual=intent_add_result,
-                onpass="Switch mastership correctly assigned",
-                onfail="Error in (re)assigning switch mastership")
-        #TODO Check if intents all exist in datastore
-        #NOTE: Do we need to print this once the test is working?
-        #main.log.info(json.dumps(json.loads(main.ONOScli1.intents(json_format=True)),
-        #    sort_keys=True, indent=4, separators=(',', ': ') ) )
+                main.log.error( "Error, getHost() failed" )
+                tmpResult = main.FALSE
+            intentAddResult = bool( pingResult and intentAddResult
+                                     and tmpResult )
+        utilities.assert_equals(
+            expect=True,
+            actual=intentAddResult,
+            onpass="Switch mastership correctly assigned",
+            onfail="Error in ( re )assigning switch mastership" )
+        # TODO Check if intents all exist in datastore
 
-    def CASE4(self,main) :
+    def CASE4( self, main ):
         """
         Ping across added host intents
         """
         description = " Ping across added host intents"
-        main.log.report(description)
-        main.case(description)
-        Ping_Result = main.TRUE
-        for i in range(8,18):
-            ping = main.Mininet1.pingHost(src="h"+str(i),target="h"+str(i+10))
-            Ping_Result = Ping_Result and ping
-            if ping==main.FALSE:
-                main.log.warn("Ping failed between h"+str(i)+" and h" + str(i+10))
-            elif ping==main.TRUE:
-                main.log.info("Ping test passed!")
-                Ping_Result = main.TRUE
-        if Ping_Result==main.FALSE:
-            main.log.report("Intents have not been installed correctly, pings failed.")
-        if Ping_Result==main.TRUE:
-            main.log.report("Intents have been installed correctly and verified by pings")
-        utilities.assert_equals(expect = main.TRUE,actual=Ping_Result,
-                onpass="Intents have been installed correctly and pings work",
-                onfail ="Intents have not been installed correctly, pings failed." )
+        main.log.report( description )
+        main.case( description )
+        PingResult = main.TRUE
+        for i in range( 8, 18 ):
+            ping = main.Mininet1.pingHost(
+                src="h" + str( i ), target="h" + str( i + 10 ) )
+            PingResult = PingResult and ping
+            if ping == main.FALSE:
+                main.log.warn( "Ping failed between h" + str( i ) +
+                               " and h" + str( i + 10 ) )
+            elif ping == main.TRUE:
+                main.log.info( "Ping test passed!" )
+                PingResult = main.TRUE
+        if PingResult == main.FALSE:
+            main.log.report(
+                "Intents have not been installed correctly, pings failed." )
+        if PingResult == main.TRUE:
+            main.log.report(
+                "Intents have been installed correctly and verified by pings" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=PingResult,
+            onpass="Intents have been installed correctly and pings work",
+            onfail="Intents have not been installed correctly, pings failed." )
 
-    def CASE5(self,main) :
-        '''
+    def CASE5( self, main ):
+        """
         Reading state of ONOS
-        '''
-        import time
+        """
         import json
-        from subprocess import Popen, PIPE
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
 
-        main.log.report("Setting up and gathering data for current state")
-        main.case("Setting up and gathering data for current state")
-        #The general idea for this test case is to pull the state of (intents,flows, topology,...) from each ONOS node
-        #We can then compare them with eachother and also with past states
+        main.log.report( "Setting up and gathering data for current state" )
+        main.case( "Setting up and gathering data for current state" )
+        # The general idea for this test case is to pull the state of
+        # ( intents,flows, topology,... ) from each ONOS node
+        # We can then compare them with eachother and also with past states
 
-        main.step("Get the Mastership of each switch from each controller")
-        global mastership_state
-        mastership_state = []
+        main.step( "Get the Mastership of each switch from each controller" )
+        global mastershipState
+        mastershipState = []
 
-        #Assert that each device has a master
-        roles_not_null = main.ONOScli1.roles_not_null()
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        rolesNotNull = main.ONOScli1.rolesNotNull()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-        ONOS1_mastership = main.ONOScli1.roles()
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        #TODO: Make this a meaningful check
-        if "Error" in ONOS1_mastership or not ONOS1_mastership:
-            main.log.report("Error in getting ONOS roles")
-            main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-            consistent_mastership = main.FALSE
+        ONOS1Mastership = main.ONOScli1.roles()
+        # TODO: Make this a meaningful check
+        if "Error" in ONOS1Mastership or not ONOS1Mastership:
+            main.log.report( "Error in getting ONOS roles" )
+            main.log.warn(
+                "ONOS1 mastership response: " +
+                repr( ONOS1Mastership ) )
+            consistentMastership = main.FALSE
         else:
-            mastership_state = ONOS1_mastership
-            consistent_mastership = main.TRUE
+            mastershipState = ONOS1Mastership
+            consistentMastership = main.TRUE
 
-
-        main.step("Get the intents from each controller")
-        global intent_state
-        intent_state = []
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents:
-            main.log.report("Error in getting ONOS intents")
-            main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
+        main.step( "Get the intents from each controller" )
+        global intentState
+        intentState = []
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
         else:
-            intent_check = main.TRUE
+            intentCheck = main.TRUE
 
-
-        main.step("Get the flows from each controller")
-        global flow_state
-        flow_state = []
-        ONOS1_flows = main.ONOScli1.flows( json_format=True )
-        flow_check = main.FALSE
-        if "Error" in ONOS1_flows or not ONOS1_flows:
-            main.log.report("Error in getting ONOS intents")
-            main.log.warn("ONOS1 flows repsponse: "+ ONOS1_flows)
+        main.step( "Get the flows from each controller" )
+        global flowState
+        flowState = []
+        ONOS1Flows = main.ONOScli1.flows( jsonFormat=True )
+        flowCheck = main.FALSE
+        if "Error" in ONOS1Flows or not ONOS1Flows:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 flows repsponse: " + ONOS1Flows )
         else:
-            #TODO: Do a better check, maybe compare flows on switches?
-            flow_state = ONOS1_flows
-            flow_check = main.TRUE
+            # TODO: Do a better check, maybe compare flows on switches?
+            flowState = ONOS1Flows
+            flowCheck = main.TRUE
 
-
-        main.step("Get the OF Table entries")
+        main.step( "Get the OF Table entries" )
         global flows
-        flows=[]
-        for i in range(1,29):
-            flows.append(main.Mininet2.get_flowTable(1.3, "s"+str(i)))
+        flows = []
+        for i in range( 1, 29 ):
+            flows.append( main.Mininet2.getFlowTable( 1.3, "s" + str( i ) ) )
 
-        #TODO: Compare switch flow tables with ONOS flow tables
+        # TODO: Compare switch flow tables with ONOS flow tables
 
-        main.step("Create TestONTopology object")
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         temp = ()
-        temp = temp + (getattr(main,('ONOS' + str(count))),)
-        temp = temp + ("ONOS"+str(count),)
-        temp = temp + (main.params['CTRL']['ip'+str(count)],)
-        temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-        ctrls.append(temp)
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+        temp = temp + ( "ONOS" + str( count ), )
+        temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+        temp = temp + \
+            ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+        ctrls.append( temp )
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Collecting topology information from ONOS")
+        main.step( "Collecting topology information from ONOS" )
         devices = []
         devices.append( main.ONOScli1.devices() )
-        '''
+        """
         hosts = []
         hosts.append( main.ONOScli1.hosts() )
-        '''
+        """
         ports = []
         ports.append( main.ONOScli1.ports() )
         links = []
         links.append( main.ONOScli1.links() )
 
-
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        for controller in range(num_controllers):
-            if devices[controller] or not "Error" in devices[controller]:
-                current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        for controller in range( numControllers ):
+            controllerStr = str( controller + 1 )
+            if devices[ controller ] or "Error" not in devices[ controller ]:
+                currentDevicesResult = main.Mininet1.compareSwitches(
+                    MNTopo,
+                    json.loads(
+                        devices[ controller ] ) )
             else:
-                current_devices_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                    onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                currentDevicesResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentDevicesResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " Switches view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " Switches view is incorrect" )
 
-            if ports[controller] or not "Error" in ports[controller]:
-                current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+            if ports[ controller ] or "Error" not in ports[ controller ]:
+                currentPortsResult = main.Mininet1.comparePorts(
+                    MNTopo,
+                    json.loads(
+                        ports[ controller ] ) )
             else:
-                current_ports_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                    onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                currentPortsResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentPortsResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " ports view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " ports view is incorrect" )
 
-            if links[controller] or not "Error" in links[controller]:
-                current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+            if links[ controller ] or "Error" not in links[ controller ]:
+                currentLinksResult = main.Mininet1.compareLinks(
+                    MNTopo,
+                    json.loads(
+                        links[ controller ] ) )
             else:
-                current_links_result = main.FALSE
-            utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                    onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                    onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
+                currentLinksResult = main.FALSE
+            utilities.assert_equals( expect=main.TRUE,
+                                    actual=currentLinksResult,
+                                    onpass="ONOS" + controllerStr +
+                                    " links view is correct",
+                                    onfail="ONOS" + controllerStr +
+                                    " links view is incorrect" )
 
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
 
-        topo_result = devices_results and ports_results and links_results
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
+        topoResult = devicesResults and portsResults and linksResults
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
 
-        final_assert = main.TRUE
-        final_assert = final_assert and topo_result and flow_check \
-                and intent_check and consistent_mastership and roles_not_null
-        utilities.assert_equals(expect=main.TRUE, actual=final_assert,
-                onpass="State check successful",
-                onfail="State check NOT successful")
+        finalAssert = main.TRUE
+        finalAssert = finalAssert and topoResult and flowCheck \
+            and intentCheck and consistentMastership and rolesNotNull
+        utilities.assert_equals( expect=main.TRUE, actual=finalAssert,
+                                onpass="State check successful",
+                                onfail="State check NOT successful" )
 
-
-    def CASE6(self,main) :
-        '''
+    def CASE6( self, main ):
+        """
         The Failure case.
-        '''
+        """
         import time
 
-        main.log.report("Restart ONOS node")
-        main.log.case("Restart ONOS node")
-        main.ONOSbench.onos_kill(ONOS1_ip)
+        main.log.report( "Restart ONOS node" )
+        main.log.case( "Restart ONOS node" )
+        main.ONOSbench.onosKill( ONOS1Ip )
         start = time.time()
 
-        main.step("Checking if ONOS is up yet")
+        main.step( "Checking if ONOS is up yet" )
         count = 0
         while count < 10:
-            onos1_isup = main.ONOSbench.isup(ONOS1_ip)
-            if onos1_isup == main.TRUE:
+            onos1Isup = main.ONOSbench.isup( ONOS1Ip )
+            if onos1Isup == main.TRUE:
                 elapsed = time.time() - start
                 break
             else:
                 count = count + 1
 
-        cli_result = main.ONOScli1.start_onos_cli(ONOS1_ip)
+        cliResult = main.ONOScli1.startOnosCli( ONOS1Ip )
 
-        case_results = main.TRUE and onos1_isup and cli_result
-        utilities.assert_equals(expect=main.TRUE, actual=case_results,
-                onpass="ONOS restart successful",
-                onfail="ONOS restart NOT successful")
-        main.log.info("ESTIMATE: ONOS took %s seconds to restart" % str(elapsed) )
-        time.sleep(5)
+        caseResults = main.TRUE and onos1Isup and cliResult
+        utilities.assert_equals( expect=main.TRUE, actual=caseResults,
+                                onpass="ONOS restart successful",
+                                onfail="ONOS restart NOT successful" )
+        main.log.info(
+            "ESTIMATE: ONOS took %s seconds to restart" %
+            str( elapsed ) )
+        time.sleep( 5 )
 
-    def CASE7(self,main) :
-        '''
+    def CASE7( self, main ):
+        """
         Check state after ONOS failure
-        '''
-        import os
+        """
         import json
-        main.case("Running ONOS Constant State Tests")
+        main.case( "Running ONOS Constant State Tests" )
 
-        #Assert that each device has a master
-        roles_not_null = main.ONOScli1.roles_not_null()
-        utilities.assert_equals(expect = main.TRUE,actual=roles_not_null,
-                onpass="Each device has a master",
-                onfail="Some devices don't have a master assigned")
+        # Assert that each device has a master
+        rolesNotNull = main.ONOScli1.rolesNotNull()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=rolesNotNull,
+            onpass="Each device has a master",
+            onfail="Some devices don't have a master assigned" )
 
-
-
-        main.step("Check if switch roles are consistent across all nodes")
-        ONOS1_mastership = main.ONOScli1.roles()
-        #FIXME: Refactor this whole case for single instance
-        #print json.dumps(json.loads(ONOS1_mastership), sort_keys=True, indent=4, separators=(',', ': '))
-        if "Error" in ONOS1_mastership or not ONOS1_mastership:
-            main.log.report("Error in getting ONOS mastership")
-            main.log.warn("ONOS1 mastership response: " + repr(ONOS1_mastership))
-            consistent_mastership = main.FALSE
+        main.step( "Check if switch roles are consistent across all nodes" )
+        ONOS1Mastership = main.ONOScli1.roles()
+        # FIXME: Refactor this whole case for single instance
+        if "Error" in ONOS1Mastership or not ONOS1Mastership:
+            main.log.report( "Error in getting ONOS mastership" )
+            main.log.warn(
+                "ONOS1 mastership response: " +
+                repr( ONOS1Mastership ) )
+            consistentMastership = main.FALSE
         else:
-            consistent_mastership = main.TRUE
-            main.log.report("Switch roles are consistent across all ONOS nodes")
-        utilities.assert_equals(expect = main.TRUE,actual=consistent_mastership,
-                onpass="Switch roles are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of switch roles")
-
+            consistentMastership = main.TRUE
+            main.log.report(
+                "Switch roles are consistent across all ONOS nodes" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=consistentMastership,
+            onpass="Switch roles are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of switch roles" )
 
         description2 = "Compare switch roles from before failure"
-        main.step(description2)
+        main.step( description2 )
 
-        current_json = json.loads(ONOS1_mastership)
-        old_json = json.loads(mastership_state)
-        mastership_check = main.TRUE
-        for i in range(1,29):
-            switchDPID = str(main.Mininet1.getSwitchDPID(switch="s"+str(i)))
+        currentJson = json.loads( ONOS1Mastership )
+        oldJson = json.loads( mastershipState )
+        mastershipCheck = main.TRUE
+        for i in range( 1, 29 ):
+            switchDPID = str(
+                main.Mininet1.getSwitchDPID(
+                    switch="s" +
+                    str( i ) ) )
 
-            current = [switch['master'] for switch in current_json if switchDPID in switch['id']]
-            old = [switch['master'] for switch in old_json if switchDPID in switch['id']]
+            current = [ switch[ 'master' ] for switch in currentJson
+                        if switchDPID in switch[ 'id' ] ]
+            old = [ switch[ 'master' ] for switch in oldJson
+                    if switchDPID in switch[ 'id' ] ]
             if current == old:
-                mastership_check = mastership_check and main.TRUE
+                mastershipCheck = mastershipCheck and main.TRUE
             else:
-                main.log.warn("Mastership of switch %s changed" % switchDPID)
-                mastership_check = main.FALSE
-        if mastership_check == main.TRUE:
-            main.log.report("Mastership of Switches was not changed")
-        utilities.assert_equals(expect=main.TRUE,actual=mastership_check,
-                onpass="Mastership of Switches was not changed",
-                onfail="Mastership of some switches changed")
-        mastership_check = mastership_check and consistent_mastership
+                main.log.warn( "Mastership of switch %s changed" % switchDPID )
+                mastershipCheck = main.FALSE
+        if mastershipCheck == main.TRUE:
+            main.log.report( "Mastership of Switches was not changed" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=mastershipCheck,
+            onpass="Mastership of Switches was not changed",
+            onfail="Mastership of some switches changed" )
+        mastershipCheck = mastershipCheck and consistentMastership
 
-
-
-        main.step("Get the intents and compare across all nodes")
-        ONOS1_intents = main.ONOScli1.intents( json_format=True )
-        intent_check = main.FALSE
-        if "Error" in ONOS1_intents or not ONOS1_intents:
-            main.log.report("Error in getting ONOS intents")
-            main.log.warn("ONOS1 intents response: " + repr(ONOS1_intents))
+        main.step( "Get the intents and compare across all nodes" )
+        ONOS1Intents = main.ONOScli1.intents( jsonFormat=True )
+        intentCheck = main.FALSE
+        if "Error" in ONOS1Intents or not ONOS1Intents:
+            main.log.report( "Error in getting ONOS intents" )
+            main.log.warn( "ONOS1 intents response: " + repr( ONOS1Intents ) )
         else:
-            intent_check = main.TRUE
-            main.log.report("Intents are consistent across all ONOS nodes")
-        utilities.assert_equals(expect = main.TRUE,actual=intent_check,
-                onpass="Intents are consistent across all ONOS nodes",
-                onfail="ONOS nodes have different views of intents")
+            intentCheck = main.TRUE
+            main.log.report( "Intents are consistent across all ONOS nodes" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=intentCheck,
+            onpass="Intents are consistent across all ONOS nodes",
+            onfail="ONOS nodes have different views of intents" )
 
-        #NOTE: Hazelcast has no durability, so intents are lost
-        '''
-        main.step("Compare current intents with intents before the failure")
-        if intent_state == ONOS1_intents:
-            same_intents = main.TRUE
-            main.log.report("Intents are consistent with before failure")
-        #TODO: possibly the states have changed? we may need to figure out what the aceptable states are
+        # NOTE: Hazelcast has no durability, so intents are lost across system
+        # restarts
+        """
+        main.step( "Compare current intents with intents before the failure" )
+        # NOTE: this requires case 5 to pass for intentState to be set.
+        #      maybe we should stop the test if that fails?
+        if intentState == ONOS1Intents:
+            sameIntents = main.TRUE
+            main.log.report( "Intents are consistent with before failure" )
+        # TODO: possibly the states have changed? we may need to figure out
+        # what the aceptable states are
         else:
-            same_intents = main.FALSE
-        utilities.assert_equals(expect = main.TRUE,actual=same_intents,
-                onpass="Intents are consistent with before failure",
-                onfail="The Intents changed during failure")
-        intent_check = intent_check and same_intents
-        '''
+            try:
+                main.log.warn( "ONOS1 intents: " )
+                print json.dumps( json.loads( ONOS1Intents ),
+                                  sort_keys=True, indent=4,
+                                  separators=( ',', ': ' ) )
+            except:
+                pass
+            sameIntents = main.FALSE
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=sameIntents,
+            onpass="Intents are consistent with before failure",
+            onfail="The Intents changed during failure" )
+        intentCheck = intentCheck and sameIntents
+        """
+        main.step( "Get the OF Table entries and compare to before " +
+                   "component failure" )
+        FlowTables = main.TRUE
+        flows2 = []
+        for i in range( 28 ):
+            main.log.info( "Checking flow table on s" + str( i + 1 ) )
+            tmpFlows = main.Mininet2.getFlowTable( 1.3, "s" + str( i + 1 ) )
+            flows2.append( tmpFlows )
+            tempResult = main.Mininet2.flowComp(
+                flow1=flows[ i ],
+                flow2=tmpFlows )
+            FlowTables = FlowTables and tempResult
+            if FlowTables == main.FALSE:
+                main.log.info( "Differences in flow table for switch: s" +
+                               str( i + 1 ) )
+        if FlowTables == main.TRUE:
+            main.log.report( "No changes were found in the flow tables" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=FlowTables,
+            onpass="No changes were found in the flow tables",
+            onfail="Changes were found in the flow tables" )
 
+        # Test of LeadershipElection
 
-
-        main.step("Get the OF Table entries and compare to before component failure")
-        Flow_Tables = main.TRUE
-        flows2=[]
-        for i in range(28):
-            main.log.info("Checking flow table on s" + str(i+1))
-            tmp_flows = main.Mininet2.get_flowTable(1.3, "s"+str(i+1))
-            flows2.append(tmp_flows)
-            temp_result = main.Mininet2.flow_comp(flow1=flows[i],flow2=tmp_flows)
-            Flow_Tables = Flow_Tables and temp_result
-            if Flow_Tables == main.FALSE:
-                main.log.info("Differences in flow table for switch: "+str(i+1))
-        if Flow_Tables == main.TRUE:
-            main.log.report("No changes were found in the flow tables")
-        utilities.assert_equals(expect=main.TRUE,actual=Flow_Tables,
-                onpass="No changes were found in the flow tables",
-                onfail="Changes were found in the flow tables")
-
-
-        #Test of LeadershipElection
-
-        leader = ONOS1_ip
-        leader_result = main.TRUE
-        for controller in range(1,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            leaderN = node.election_test_leader()
-            #verify leader is ONOS1
-            #NOTE even though we restarted ONOS, it is the only one so onos 1 must be leader
+        leader = ONOS1Ip
+        leaderResult = main.TRUE
+        for controller in range( 1, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            leaderN = node.electionTestLeader()
+            # verify leader is ONOS1
+            # NOTE even though we restarted ONOS, it is the only one so onos 1
+            # must be leader
             if leaderN == leader:
-                #all is well
+                # all is well
                 pass
             elif leaderN == main.FALSE:
-                #error in  response
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
+                # error in  response
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
             elif leader != leaderN:
-                leader_result = main.FALSE
-                main.log.report("ONOS" + str(controller) + " sees "+str(leaderN) +
-                        " as the leader of the election app. Leader should be "+str(leader) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a new leader was re-elected if applicable)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                leaderResult = main.FALSE
+                main.log.report( "ONOS" + str( controller ) +
+                                 " sees " + str( leaderN ) +
+                                 " as the leader of the election app." +
+                                 " Leader should be " + str( leader ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a new " +
+                             "leader was re-elected if applicable )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        result = mastership_check and intent_check and Flow_Tables and roles_not_null\
-                and leader_result
-        result = int(result)
+        result = ( mastershipCheck and intentCheck and FlowTables and
+                   rolesNotNull and leaderResult )
+        result = int( result )
         if result == main.TRUE:
-            main.log.report("Constant State Tests Passed")
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Constant State Tests Passed",
-                onfail="Constant state tests failed")
+            main.log.report( "Constant State Tests Passed" )
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Constant State Tests Passed",
+                                onfail="Constant state tests failed" )
 
-    def CASE8 (self,main):
-        '''
+    def CASE8( self, main ):
+        """
         Compare topo
-        '''
+        """
         import sys
-        sys.path.append("/home/admin/sts") # Trying to remove some dependancies, #FIXME add this path to params
-        from sts.topology.teston_topology import TestONTopology # assumes that sts is already in you PYTHONPATH
+        # FIXME add this path to params
+        sys.path.append( "/home/admin/sts" )
+        # assumes that sts is already in you PYTHONPATH
+        from sts.topology.teston_topology import TestONTopology
         import json
         import time
 
-        description ="Compare ONOS Topology view to Mininet topology"
-        main.case(description)
-        main.log.report(description)
-        main.step("Create TestONTopology object")
+        description = "Compare ONOS Topology view to Mininet topology"
+        main.case( description )
+        main.log.report( description )
+        main.step( "Create TestONTopology object" )
         ctrls = []
         count = 1
         temp = ()
-        temp = temp + (getattr(main,('ONOS' + str(count))),)
-        temp = temp + ("ONOS"+str(count),)
-        temp = temp + (main.params['CTRL']['ip'+str(count)],)
-        temp = temp + (eval(main.params['CTRL']['port'+str(count)]),)
-        ctrls.append(temp)
-        MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
+        temp = temp + ( getattr( main, ( 'ONOS' + str( count ) ) ), )
+        temp = temp + ( "ONOS" + str( count ), )
+        temp = temp + ( main.params[ 'CTRL' ][ 'ip' + str( count ) ], )
+        temp = temp + \
+            ( eval( main.params[ 'CTRL' ][ 'port' + str( count ) ] ), )
+        ctrls.append( temp )
+        MNTopo = TestONTopology(
+            main.Mininet1,
+            ctrls )  # can also add Intent API info for intent operations
 
-        main.step("Comparing ONOS topology to MN")
-        devices_results = main.TRUE
-        ports_results = main.TRUE
-        links_results = main.TRUE
-        topo_result = main.FALSE
+        main.step( "Comparing ONOS topology to MN" )
+        devicesResults = main.TRUE
+        portsResults = main.TRUE
+        linksResults = main.TRUE
+        topoResult = main.FALSE
         elapsed = 0
         count = 0
-        main.step("Collecting topology information from ONOS")
-        start_time = time.time()
-        while topo_result == main.FALSE and elapsed < 60:
+        main.step( "Collecting topology information from ONOS" )
+        startTime = time.time()
+        while topoResult == main.FALSE and elapsed < 60:
             count = count + 1
             if count > 1:
-                MNTopo = TestONTopology(main.Mininet1, ctrls) # can also add Intent API info for intent operations
-            cli_start = time.time()
+                MNTopo = TestONTopology(
+                    main.Mininet1,
+                    ctrls )
+            cliStart = time.time()
             devices = []
             devices.append( main.ONOScli1.devices() )
-            '''
+            """
             hosts = []
             hosts.append( main.ONOScli1.hosts() )
-            '''
+            """
             ports = []
             ports.append( main.ONOScli1.ports() )
             links = []
             links.append( main.ONOScli1.links() )
-            elapsed = time.time() - start_time
-            print "CLI time: " + str(time.time() - cli_start)
+            elapsed = time.time() - startTime
+            cliTime = time.time() - cliStart
+            print "CLI time: " + str( cliTime )
 
-            for controller in range(num_controllers):
-                if devices[controller] or not "Error" in devices[controller]:
-                    current_devices_result =  main.Mininet1.compare_switches(MNTopo, json.loads(devices[controller]))
+            for controller in range( numControllers ):
+                controllerStr = str( controller + 1 )
+                if devices[ controller ] or "Error" not in devices[
+                        controller ]:
+                    currentDevicesResult = main.Mininet1.compareSwitches(
+                        MNTopo,
+                        json.loads(
+                            devices[ controller ] ) )
                 else:
-                    current_devices_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_devices_result,
-                        onpass="ONOS"+str(int(controller+1))+" Switches view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" Switches view is incorrect")
+                    currentDevicesResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentDevicesResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " Switches view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " Switches view is incorrect" )
 
-                if ports[controller] or not "Error" in ports[controller]:
-                    current_ports_result =  main.Mininet1.compare_ports(MNTopo, json.loads(ports[controller]))
+                if ports[ controller ] or "Error" not in ports[ controller ]:
+                    currentPortsResult = main.Mininet1.comparePorts(
+                        MNTopo,
+                        json.loads(
+                            ports[ controller ] ) )
                 else:
-                    current_ports_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_ports_result,
-                        onpass="ONOS"+str(int(controller+1))+" ports view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" ports view is incorrect")
+                    currentPortsResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentPortsResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " ports view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " ports view is incorrect" )
 
-                if links[controller] or not "Error" in links[controller]:
-                    current_links_result =  main.Mininet1.compare_links(MNTopo, json.loads(links[controller]))
+                if links[ controller ] or "Error" not in links[ controller ]:
+                    currentLinksResult = main.Mininet1.compareLinks(
+                        MNTopo,
+                        json.loads(
+                            links[ controller ] ) )
                 else:
-                    current_links_result = main.FALSE
-                utilities.assert_equals(expect=main.TRUE, actual=current_links_result,
-                        onpass="ONOS"+str(int(controller+1))+" links view is correct",
-                        onfail="ONOS"+str(int(controller+1))+" links view is incorrect")
-            devices_results = devices_results and current_devices_result
-            ports_results = ports_results and current_ports_result
-            links_results = links_results and current_links_result
-            topo_result = devices_results and ports_results and links_results
+                    currentLinksResult = main.FALSE
+                utilities.assert_equals( expect=main.TRUE,
+                                        actual=currentLinksResult,
+                                        onpass="ONOS" + controllerStr +
+                                        " links view is correct",
+                                        onfail="ONOS" + controllerStr +
+                                        " links view is incorrect" )
+            devicesResults = devicesResults and currentDevicesResult
+            portsResults = portsResults and currentPortsResult
+            linksResults = linksResults and currentLinksResult
+            topoResult = devicesResults and portsResults and linksResults
 
-        topo_result = topo_result and int(count <= 2)
-        main.log.report("Very crass estimate for topology discovery/convergence(note it takes about 1 seconds to read the topology from each ONOS instance): " +\
-                str(elapsed) + " seconds, " + str(count) +" tries" )
+        topoResult = topoResult and int( count <= 2 )
+        note = "note it takes about " + str( int( cliTime ) ) + \
+            " seconds for the test to make all the cli calls to fetch " +\
+            "the topology from each ONOS instance"
+        main.log.report(
+            "Very crass estimate for topology discovery/convergence( " +
+            str( note ) + " ): " + str( elapsed ) + " seconds, " +
+            str( count ) + " tries" )
         if elapsed > 60:
-            main.log.report("Giving up on topology convergence")
-        utilities.assert_equals(expect=main.TRUE, actual=topo_result,
-                onpass="Topology Check Test successful",
-                onfail="Topology Check Test NOT successful")
-        if topo_result == main.TRUE:
-            main.log.report("ONOS topology view matches Mininet topology")
+            main.log.report( "Giving up on topology convergence" )
+        utilities.assert_equals( expect=main.TRUE, actual=topoResult,
+                                onpass="Topology Check Test successful",
+                                onfail="Topology Check Test NOT successful" )
+        if topoResult == main.TRUE:
+            main.log.report( "ONOS topology view matches Mininet topology" )
 
-
-    def CASE9 (self,main):
-        '''
+    def CASE9( self, main ):
+        """
         Link s3-s28 down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Turn off a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Turn off a link to ensure that Link Discovery " +\
+            "is working properly"
+        main.log.report( description )
+        main.case( description )
 
+        main.step( "Kill Link between s3 and s28" )
+        LinkDown = main.Mininet1.link( END1="s3", END2="s28", OPTION="down" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link down to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkDown,
+                                onpass="Link down succesful",
+                                onfail="Failed to bring link down" )
+        # TODO do some sort of check here
 
-        main.step("Kill Link between s3 and s28")
-        Link_Down = main.Mininet1.link(END1="s3",END2="s28",OPTION="down")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link down to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Down,
-                onpass="Link down succesful",
-                onfail="Failed to bring link down")
-        #TODO do some sort of check here
-
-    def CASE10 (self,main):
-        '''
+    def CASE10( self, main ):
+        """
         Link s3-s28 up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        import time
+        # NOTE: You should probably run a topology check after this
 
-        link_sleep = float(main.params['timers']['LinkDiscovery'])
+        linkSleep = float( main.params[ 'timers' ][ 'LinkDiscovery' ] )
 
-        description = "Restore a link to ensure that Link Discovery is working properly"
-        main.log.report(description)
-        main.case(description)
+        description = "Restore a link to ensure that Link Discovery is " + \
+            "working properly"
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Bring link between s3 and s28 back up")
-        Link_Up = main.Mininet1.link(END1="s3",END2="s28",OPTION="up")
-        main.log.info("Waiting " + str(link_sleep) + " seconds for link up to be discovered")
-        time.sleep(link_sleep)
-        utilities.assert_equals(expect=main.TRUE,actual=Link_Up,
-                onpass="Link up succesful",
-                onfail="Failed to bring link up")
-        #TODO do some sort of check here
+        main.step( "Bring link between s3 and s28 back up" )
+        LinkUp = main.Mininet1.link( END1="s3", END2="s28", OPTION="up" )
+        main.log.info(
+            "Waiting " +
+            str( linkSleep ) +
+            " seconds for link up to be discovered" )
+        time.sleep( linkSleep )
+        utilities.assert_equals( expect=main.TRUE, actual=LinkUp,
+                                onpass="Link up succesful",
+                                onfail="Failed to bring link up" )
+        # TODO do some sort of check here
 
-
-    def CASE11 (self, main) :
-        '''
+    def CASE11( self, main ):
+        """
         Switch Down
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
 
         description = "Killing a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
 
-        #TODO: Make this switch parameterizable
-        main.step("Kill s28 ")
-        main.log.report("Deleting s28")
-        main.Mininet1.del_switch("s28")
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch down to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        # TODO: Make this switch parameterizable
+        main.step( "Kill " + switch )
+        main.log.report( "Deleting " + switch )
+        main.Mininet1.delSwitch( switch )
+        main.log.info( "Waiting " + str( switchSleep ) +
+                       " seconds for switch down to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == False:
+        if device and device[ 'available' ] is False:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="Kill switch succesful",
-                onfail="Failed to kill switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="Kill switch succesful",
+                                onfail="Failed to kill switch?" )
 
-    def CASE12 (self, main) :
-        '''
+    def CASE12( self, main ):
+        """
         Switch Up
-        '''
-        #NOTE: You should probably run a topology check after this
+        """
+        # NOTE: You should probably run a topology check after this
         import time
 
-        switch_sleep = float(main.params['timers']['SwitchDiscovery'])
+        switchSleep = float( main.params[ 'timers' ][ 'SwitchDiscovery' ] )
+        switch = main.params[ 'kill' ][ 'switch' ]
+        switchDPID = main.params[ 'kill' ][ 'dpid' ]
+        links = main.params[ 'kill' ][ 'links' ].split()
         description = "Adding a switch to ensure it is discovered correctly"
-        main.log.report(description)
-        main.case(description)
+        main.log.report( description )
+        main.case( description )
 
-        main.step("Add back s28")
-        main.log.report("Adding back s28")
-        main.Mininet1.add_switch("s28", dpid = '0000000000002800')
-        #TODO: New dpid or same? Ask Thomas?
-        main.Mininet1.add_link('s28', 's3')
-        main.Mininet1.add_link('s28', 's6')
-        main.Mininet1.add_link('s28', 'h28')
-        main.Mininet1.assign_sw_controller(sw="28",
-                ip1=ONOS1_ip,port1=ONOS1_port)
-        main.log.info("Waiting " + str(switch_sleep) + " seconds for switch up to be discovered")
-        time.sleep(switch_sleep)
-        device = main.ONOScli1.get_device(dpid="0028")
-        #Peek at the deleted switch
-        main.log.warn( str(device) )
+        main.step( "Add back " + switch )
+        main.log.report( "Adding back " + switch )
+        main.Mininet1.addSwitch( switch, dpid=switchDPID )
+        # TODO: New dpid or same? Ask Thomas?
+        for peer in links:
+            main.Mininet1.addLink( switch, peer )
+        main.Mininet1.assignSwController( sw=switch.split( 's' )[ 1 ],
+                                           ip1=ONOS1Ip, port1=ONOS1Port )
+        main.log.info(
+            "Waiting " +
+            str( switchSleep ) +
+            " seconds for switch up to be discovered" )
+        time.sleep( switchSleep )
+        device = main.ONOScli1.getDevice( dpid=switchDPID )
+        # Peek at the deleted switch
+        main.log.warn( str( device ) )
         result = main.FALSE
-        if device and device['available'] == True:
+        if device and device[ 'available' ]:
             result = main.TRUE
-        utilities.assert_equals(expect=main.TRUE,actual=result,
-                onpass="add switch succesful",
-                onfail="Failed to add switch?")
+        utilities.assert_equals( expect=main.TRUE, actual=result,
+                                onpass="add switch succesful",
+                                onfail="Failed to add switch?" )
 
-    def CASE13 (self, main) :
-        '''
+    def CASE13( self, main ):
+        """
         Clean up
-        '''
+        """
         import os
         import time
-        #printing colors to terminal
+        # printing colors to terminal
         colors = {}
-        colors['cyan']   = '\033[96m'
-        colors['purple'] = '\033[95m'
-        colors['blue']   = '\033[94m'
-        colors['green']  = '\033[92m'
-        colors['yellow'] = '\033[93m'
-        colors['red']    = '\033[91m'
-        colors['end']    = '\033[0m'
+        colors[ 'cyan' ] = '\033[96m'
+        colors[ 'purple' ] = '\033[95m'
+        colors[ 'blue' ] = '\033[94m'
+        colors[ 'green' ] = '\033[92m'
+        colors[ 'yellow' ] = '\033[93m'
+        colors[ 'red' ] = '\033[91m'
+        colors[ 'end' ] = '\033[0m'
         description = "Test Cleanup"
-        main.log.report(description)
-        main.case(description)
-        main.step("Killing tcpdumps")
-        main.Mininet2.stop_tcpdump()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Killing tcpdumps" )
+        main.Mininet2.stopTcpdump()
 
-        main.step("Checking ONOS Logs for errors")
-        print colors['purple'] + "Checking logs for errors on ONOS1:" + colors['end']
-        print main.ONOSbench.check_logs(ONOS1_ip)
-        main.step("Copying MN pcap and ONOS log files to test station")
+        main.step( "Checking ONOS Logs for errors" )
+        print colors[ 'purple' ] + "Checking logs for errors on ONOS1:" + \
+            colors[ 'end' ]
+        print main.ONOSbench.checkLogs( ONOS1Ip )
+        main.step( "Copying MN pcap and ONOS log files to test station" )
         testname = main.TEST
-        teststation_user = main.params['TESTONUSER']
-        teststation_IP = main.params['TESTONIP']
-        #NOTE: MN Pcap file is being saved to ~/packet_captures
+        teststationUser = main.params[ 'TESTONUSER' ]
+        teststationIP = main.params[ 'TESTONIP' ]
+        # NOTE: MN Pcap file is being saved to ~/packet_captures
         #       scp this file as MN and TestON aren't necessarily the same vm
-        #FIXME: scp
-        #####mn files
-        #TODO: Load these from params
-        #NOTE: must end in /
-        log_folder = "/opt/onos/log/"
-        log_files = ["karaf.log", "karaf.log.1"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
-            main.ONOSbench.handle.expect("\$")
+        # FIXME: scp
+        # mn files
+        # TODO: Load these from params
+        # NOTE: must end in /
+        logFolder = "/opt/onos/log/"
+        logFiles = [ "karaf.log", "karaf.log.1" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            main.ONOSbench.handle.sendline( "scp sdn@" + ONOS1Ip + ":" +
+                                            logFolder + f + " " +
+                                            teststationUser + "@" +
+                                            teststationIP + ":" + dstDir +
+                                            str( testname ) + "-ONOS1-" + f )
+            main.ONOSbench.handle.expect( "\$" )
             print main.ONOSbench.handle.before
 
-        #std*.log's
-        #NOTE: must end in /
-        log_folder = "/opt/onos/var/"
-        log_files = ["stderr.log", "stdout.log"]
-        #NOTE: must end in /
-        dst_dir = "~/packet_captures/"
-        for f in log_files:
-            main.ONOSbench.handle.sendline( "scp sdn@"+ONOS1_ip+":"+log_folder+f+" "+
-                    teststation_user +"@"+teststation_IP+":"+\
-                    dst_dir + str(testname) + "-ONOS1-"+f )
+        # std*.log's
+        # NOTE: must end in /
+        logFolder = "/opt/onos/var/"
+        logFiles = [ "stderr.log", "stdout.log" ]
+        # NOTE: must end in /
+        dstDir = "~/packet_captures/"
+        for f in logFiles:
+            main.ONOSbench.handle.sendline( "scp sdn@" + ONOS1Ip + ":" +
+                                            logFolder + f + " " +
+                                            teststationUser + "@" +
+                                            teststationIP + ":" + dstDir +
+                                            str( testname ) + "-ONOS1-" + f )
+        # sleep so scp can finish
+        time.sleep( 10 )
+        main.step( "Packing and rotating pcap archives" )
+        os.system( "~/TestON/dependencies/rotate.sh " + str( testname ) )
 
+        # TODO: actually check something here
+        utilities.assert_equals( expect=main.TRUE, actual=main.TRUE,
+                                onpass="Test cleanup successful",
+                                onfail="Test cleanup NOT successful" )
 
-        #sleep so scp can finish
-        time.sleep(10)
-        main.step("Packing and rotating pcap archives")
-        os.system("~/TestON/dependencies/rotate.sh "+ str(testname))
-
-
-        #TODO: actually check something here
-        utilities.assert_equals(expect=main.TRUE, actual=main.TRUE,
-                onpass="Test cleanup successful",
-                onfail="Test cleanup NOT successful")
-
-    def CASE14 ( self, main ) :
-        '''
+    def CASE14( self, main ):
+        """
         start election app on all onos nodes
-        '''
-        leader_result = main.TRUE
-        #install app on onos 1
-        main.log.info("Install leadership election app")
-        main.ONOScli1.feature_install("onos-app-election")
-        #wait for election
-        #check for leader
-        leader = main.ONOScli1.election_test_leader()
-        #verify leader is ONOS1
-        if leader == ONOS1_ip:
-            #all is well
+        """
+        leaderResult = main.TRUE
+        # install app on onos 1
+        main.log.info( "Install leadership election app" )
+        main.ONOScli1.featureInstall( "onos-app-election" )
+        # wait for election
+        # check for leader
+        leader = main.ONOScli1.electionTestLeader()
+        # verify leader is ONOS1
+        if leader == ONOS1Ip:
+            # all is well
             pass
-        elif leader == None:
-            #No leader elected
-            main.log.report("No leader was elected")
-            leader_result = main.FALSE
+        elif leader is None:
+            # No leader elected
+            main.log.report( "No leader was elected" )
+            leaderResult = main.FALSE
         elif leader == main.FALSE:
-            #error in  response
-            #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-            main.log.report("Something is wrong with election_test_leader function, check the error logs")
-            leader_result = main.FALSE
+            # error in  response
+            # TODO: add check for "Command not found:" in the driver, this
+            # means the app isn't loaded
+            main.log.report( "Something is wrong with electionTestLeader" +
+                             " function, check the error logs" )
+            leaderResult = main.FALSE
         else:
-            #error in  response
-            main.log.report("Unexpected response from election_test_leader function:'"+str(leader)+"'")
-            leader_result = main.FALSE
+            # error in  response
+            main.log.report(
+                "Unexpected response from electionTestLeader function:'" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
 
-
-
-
-        #install on other nodes and check for leader.
-        #Should be onos1 and each app should show the same leader
-        for controller in range(2,num_controllers+1):
-            node = getattr( main, ( 'ONOScli' + str( controller ) ) )#loop through ONOScli handlers
-            node.feature_install("onos-app-election")
-            leaderN = node.election_test_leader()
-            #verify leader is ONOS1
-            if leaderN == ONOS1_ip:
-                #all is well
+        # install on other nodes and check for leader.
+        # Should be onos1 and each app should show the same leader
+        for controller in range( 2, numControllers + 1 ):
+            # loop through ONOScli handlers
+            node = getattr( main, ( 'ONOScli' + str( controller ) ) )
+            node.featureInstall( "onos-app-election" )
+            leaderN = node.electionTestLeader()
+            # verify leader is ONOS1
+            if leaderN == ONOS1Ip:
+                # all is well
                 pass
             elif leaderN == main.FALSE:
-                #error in  response
-                #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-                main.log.report("Something is wrong with election_test_leader function, check the error logs")
-                leader_result = main.FALSE
+                # error in  response
+                # TODO: add check for "Command not found:" in the driver, this
+                # means the app isn't loaded
+                main.log.report( "Something is wrong with " +
+                                 "electionTestLeader function, check the" +
+                                 " error logs" )
+                leaderResult = main.FALSE
             elif leader != leaderN:
-                leader_result = main.FALSE
-                main.log.report("ONOS" + str(controller) + " sees "+str(leaderN) +
-                        " as the leader of the election app. Leader should be "+str(leader) )
-        if leader_result:
-            main.log.report("Leadership election tests passed(consistent view of leader across listeners and a leader was elected)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+                leaderResult = main.FALSE
+                main.log.report( "ONOS" + str( controller ) + " sees " +
+                                 str( leaderN ) +
+                                 " as the leader of the election app. Leader" +
+                                 " should be " +
+                                 str( leader ) )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( consistent " +
+                             "view of leader across listeners and a leader " +
+                             "was elected )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-    def CASE15 ( self, main ) :
-        '''
+    def CASE15( self, main ):
+        """
         Check that Leadership Election is still functional
-        '''
-        leader_result = main.TRUE
+        """
+        leaderResult = main.TRUE
         description = "Check that Leadership Election is still functional"
-        main.log.report(description)
-        main.case(description)
-        main.step("Find current leader and withdraw")
-        leader = main.ONOScli1.election_test_leader()
-        #TODO: do some sanity checking on leader before using it
-        withdraw_result = main.FALSE
-        if leader == ONOS1_ip:
-            old_leader = getattr( main, "ONOScli1" )
-        elif leader == None or leader == main.FALSE:
-            main.log.report("Leader for the election app should be an ONOS node,"\
-                    +"instead got '"+str(leader)+"'")
-            leader_result = main.FALSE
-        withdraw_result = old_leader.election_test_withdraw()
+        main.log.report( description )
+        main.case( description )
+        main.step( "Find current leader and withdraw" )
+        leader = main.ONOScli1.electionTestLeader()
+        # TODO: do some sanity checking on leader before using it
+        withdrawResult = main.FALSE
+        if leader == ONOS1Ip:
+            oldLeader = getattr( main, "ONOScli1" )
+        elif leader is None or leader == main.FALSE:
+            main.log.report(
+                "Leader for the election app should be an ONOS node," +
+                "instead got '" +
+                str( leader ) +
+                "'" )
+            leaderResult = main.FALSE
+        withdrawResult = oldLeader.electionTestWithdraw()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=withdrawResult,
+            onpass="App was withdrawn from election",
+            onfail="App was not withdrawn from election" )
 
-
-        main.step("Make sure new leader is elected")
-        leader_list = []
-        leaderN =  main.ONOScli1.election_test_leader() 
+        main.step( "Make sure new leader is elected" )
+        leaderList = []
+        leaderN = main.ONOScli1.electionTestLeader()
         if leaderN == leader:
-            main.log.report("ONOS"+str(controller)+" still sees " + str(leader) +\
-                    " as leader after they withdrew")
-            leader_result = main.FALSE
+            main.log.report( "ONOS still sees " + str( leaderN ) +
+                             " as leader after they withdrew" )
+            leaderResult = main.FALSE
         elif leaderN == main.FALSE:
-            #error in  response
-            #TODO: add check for "Command not found:" in the driver, this means the app isn't loaded
-            main.log.report("Something is wrong with election_test_leader function, check the error logs")
-            leader_result = main.FALSE
-        elif leaderN == None:
-            main.log.info("There is no leader after the app withdrew from election")
-        if leader_result:
-            main.log.report("Leadership election tests passed(There is no leader after the old leader resigned)")
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="Something went wrong with Leadership election")
+            # error in  response
+            # TODO: add check for "Command not found:" in the driver, this
+            # means the app isn't loaded
+            main.log.report( "Something is wrong with electionTestLeader " +
+                             "function, check the error logs" )
+            leaderResult = main.FALSE
+        elif leaderN is None:
+            main.log.info(
+                "There is no leader after the app withdrew from election" )
+        if leaderResult:
+            main.log.report( "Leadership election tests passed( There is no " +
+                             "leader after the old leader resigned )" )
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="Something went wrong with Leadership election" )
 
-
-        main.step("Run for election on old leader(just so everyone is in the hat)")
-        run_result = old_leader.election_test_run()
-        leader = main.ONOScli1.election_test_leader()
-        #verify leader is ONOS1
-        if leader == ONOS1_ip:
-            leader_result = main.TRUE
+        main.step(
+            "Run for election on old leader( just so everyone is in the hat )" )
+        runResult = oldLeader.electionTestRun()
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=runResult,
+            onpass="App re-ran for election",
+            onfail="App failed to run for election" )
+        leader = main.ONOScli1.electionTestLeader()
+        # verify leader is ONOS1
+        if leader == ONOS1Ip:
+            leaderResult = main.TRUE
         else:
-            leader_result = main.FALSE
-        #TODO: assert on  run and withdraw results?
+            leaderResult = main.FALSE
+        # TODO: assert on  run and withdraw results?
 
-        utilities.assert_equals(expect=main.TRUE, actual=leader_result,
-                onpass="Leadership election passed",
-                onfail="ONOS1's election app was not leader after it re-ran for election")
-
+        utilities.assert_equals(
+            expect=main.TRUE,
+            actual=leaderResult,
+            onpass="Leadership election passed",
+            onfail="ONOS1's election app was not leader after it re-ran " +
+                   "for election" )
diff --git a/TestON/tests/IntentPerfNext/Dependency/IntentClass.py b/TestON/tests/IntentPerfNext/Dependency/IntentClass.py
new file mode 100644
index 0000000..f5b17c2
--- /dev/null
+++ b/TestON/tests/IntentPerfNext/Dependency/IntentClass.py
@@ -0,0 +1,56 @@
+
+def __init__(self):
+    self_ = self
+
+def printLog(main):
+    main.log.info("Print log success")
+
+def iptablesDropAllNodes(main, MN_ip, sw_port):
+    #INPUT RULES 
+    main.ONOS1.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS2.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS3.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS4.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS5.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS6.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS7.handle.sendline(
+        "sudo iptables -A INPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+
+    main.ONOS1.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS2.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS3.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS4.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS5.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS6.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+    main.ONOS7.handle.sendline(
+        "sudo iptables -A OUTPUT -p tcp -s "+
+        MN_ip+" --dport "+sw_port+" -j DROP")
+
+def uninstallAllNodes(main, node_ip_list):
+    for node in node_ip_list:
+        main.ONOSbench.onos_uninstall(node_ip = node)
diff --git a/TestON/tests/IntentPerfNext/Dependency/__init__.py b/TestON/tests/IntentPerfNext/Dependency/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/TestON/tests/IntentPerfNext/Dependency/__init__.py
diff --git a/TestON/tests/IntentPerfNext/IntentPerfNext.params b/TestON/tests/IntentPerfNext/IntentPerfNext.params
index edba27b..dbcd05c 100644
--- a/TestON/tests/IntentPerfNext/IntentPerfNext.params
+++ b/TestON/tests/IntentPerfNext/IntentPerfNext.params
@@ -1,5 +1,5 @@
 <PARAMS>
-    <testcases>1,5,7,2,3</testcases>
+    <testcases>1,4,5,2,3,4,5,2,3,4,5,2,3,4</testcases>
 
     <ENV>
         <cellName>intent_perf_test</cellName>
@@ -36,13 +36,15 @@
 
     <TEST>
         #Number of times to iterate each case
-        <numIter>15</numIter>
-        <numIgnore>3</numIgnore>
-        <numSwitch>9</numSwitch>
+        <numIter>12</numIter>
+        <numIgnore>2</numIgnore>
+        <numSwitch>8</numSwitch>
         <batchThresholdMin>0</batchThresholdMin>
         <batchThresholdMax>1000</batchThresholdMax>
-        <batchIntentSize>200</batchIntentSize>
+        <batchIntentSize>1</batchIntentSize>
         <numMult>1</numMult>
+        #Interface to bring down for intent reroute case
+        <intfs>s3-eth2</intfs>
     </TEST>
 
     <JSON>
diff --git a/TestON/tests/IntentPerfNext/IntentPerfNext.py b/TestON/tests/IntentPerfNext/IntentPerfNext.py
index daa1ae2..74ce298 100644
--- a/TestON/tests/IntentPerfNext/IntentPerfNext.py
+++ b/TestON/tests/IntentPerfNext/IntentPerfNext.py
@@ -1,832 +1,1089 @@
-# Intent Performance Test for ONOS-next
+#Intent Performance Test for ONOS-next
 #
-# andrew@onlab.us
+#andrew@onlab.us
 #
-# November 5, 2014
-
+#November 5, 2014
 
 class IntentPerfNext:
-
-    def __init__( self ):
+    def __init__(self):
         self.default = ""
 
-    def CASE1( self, main ):
-        """
+    def CASE1(self, main):
+        '''
         ONOS startup sequence
-        """
+        '''
+        
         import time
         global cluster_count
-        cluster_count = 1
+        cluster_count = 1 
 
-        cell_name = main.params[ 'ENV' ][ 'cellName' ]
+        cell_name = main.params['ENV']['cellName']
 
-        git_pull = main.params[ 'GIT' ][ 'autoPull' ]
-        checkout_branch = main.params[ 'GIT' ][ 'checkout' ]
+        git_pull = main.params['GIT']['autoPull']
+        checkout_branch = main.params['GIT']['checkout']
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS4_ip = main.params[ 'CTRL' ][ 'ip4' ]
-        ONOS5_ip = main.params[ 'CTRL' ][ 'ip5' ]
-        ONOS6_ip = main.params[ 'CTRL' ][ 'ip6' ]
-        ONOS7_ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
 
-        main.ONOSbench.onos_uninstall( node_ip=ONOS1_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS2_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS3_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS4_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS5_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS6_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS7_ip )
+        main.ONOSbench.onos_uninstall(node_ip=ONOS1_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS2_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS3_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS4_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS5_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS6_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS7_ip)
 
-        MN1_ip = main.params[ 'MN' ][ 'ip1' ]
-        BENCH_ip = main.params[ 'BENCH' ][ 'ip' ]
+        MN1_ip = main.params['MN']['ip1']
+        BENCH_ip = main.params['BENCH']['ip']
+    
+        main.case("Setting up test environment")
 
-        main.case( "Setting up test environment" )
-
-        main.step( "Creating cell file" )
+        main.step("Creating cell file")
         cell_file_result = main.ONOSbench.create_cell_file(
-            BENCH_ip, cell_name, MN1_ip,
-            "onos-core,onos-app-metrics,onos-gui",
-            # ONOS1_ip, ONOS2_ip, ONOS3_ip )
-            ONOS1_ip )
+                BENCH_ip, cell_name, MN1_ip,
+                "onos-core,onos-app-metrics,onos-gui",
+                ONOS1_ip)
 
-        main.step( "Applying cell file to environment" )
-        cell_apply_result = main.ONOSbench.set_cell( cell_name )
+        main.step("Applying cell file to environment")
+        cell_apply_result = main.ONOSbench.set_cell(cell_name)
         verify_cell_result = main.ONOSbench.verify_cell()
 
-        main.step( "Removing raft logs" )
+        main.step("Removing raft logs")
         main.ONOSbench.onos_remove_raft_logs()
 
-        main.step( "Git checkout and pull " + checkout_branch )
+        main.step("Git checkout and pull "+checkout_branch)
         if git_pull == 'on':
             checkout_result = \
-                main.ONOSbench.git_checkout( checkout_branch )
+                main.ONOSbench.git_checkout(checkout_branch)
             pull_result = main.ONOSbench.git_pull()
-
-            # If you used git pull, auto compile
-            main.step( "Using onos-build to compile ONOS" )
+           
+            #If you used git pull, auto compile
+            main.step("Using onos-build to compile ONOS")
             build_result = main.ONOSbench.onos_build()
         else:
             checkout_result = main.TRUE
             pull_result = main.TRUE
             build_result = main.TRUE
-            main.log.info( "Git pull skipped by configuration" )
+            main.log.info("Git pull skipped by configuration")
 
-        main.log.report( "Commit information - " )
-        main.ONOSbench.get_version( report=True )
+        main.log.report("Commit information - ")
+        main.ONOSbench.get_version(report=True)
 
-        main.step( "Creating ONOS package" )
+        main.step("Creating ONOS package")
         package_result = main.ONOSbench.onos_package()
 
-        main.step( "Installing ONOS package" )
-        install1_result = main.ONOSbench.onos_install( node=ONOS1_ip )
-        #install2_result = main.ONOSbench.onos_install( node=ONOS2_ip )
-        #install3_result = main.ONOSbench.onos_install( node=ONOS3_ip )
+        main.step("Installing ONOS package")
+        install1_result = main.ONOSbench.onos_install(node=ONOS1_ip)
+        #install2_result = main.ONOSbench.onos_install(node=ONOS2_ip)
+        #install3_result = main.ONOSbench.onos_install(node=ONOS3_ip)
 
-        main.step( "Set cell for ONOScli env" )
-        main.ONOS1cli.set_cell( cell_name )
-        # main.ONOS2cli.set_cell( cell_name )
-        # main.ONOS3cli.set_cell( cell_name )
+        main.step("Set cell for ONOScli env")
+        main.ONOS1cli.set_cell(cell_name)
+        #main.ONOS2cli.set_cell(cell_name)
+        #main.ONOS3cli.set_cell(cell_name)
 
-        time.sleep( 5 )
+        time.sleep(5)
 
-        main.step( "Start onos cli" )
-        cli1 = main.ONOS1cli.start_onos_cli( ONOS1_ip )
-        #cli2 = main.ONOS2cli.start_onos_cli( ONOS2_ip )
-        #cli3 = main.ONOS3cli.start_onos_cli( ONOS3_ip )
+        main.step("Start onos cli")
+        cli1 = main.ONOS1cli.start_onos_cli(ONOS1_ip)
+        #cli2 = main.ONOS2cli.start_onos_cli(ONOS2_ip)
+        #cli3 = main.ONOS3cli.start_onos_cli(ONOS3_ip)
 
-        utilities.assert_equals( expect=main.TRUE,
-                                 actual=cell_file_result and cell_apply_result and
-                                 verify_cell_result and checkout_result and
-                                 pull_result and build_result and
-                                 install1_result,  # and install2_result and
-                                 # install3_result,
-                                 onpass="ONOS started successfully",
-                                 onfail="Failed to start ONOS" )
+        utilities.assert_equals(expect=main.TRUE,
+                actual = cell_file_result and cell_apply_result and\
+                         verify_cell_result and checkout_result and\
+                         pull_result and build_result and\
+                         install1_result, #and install2_result and\
+                         #install3_result,
+                onpass="ONOS started successfully",
+                onfail="Failed to start ONOS")
 
-    def CASE2( self, main ):
-        """
+    def CASE2(self, main):
+        '''
         Single intent add latency
 
-        """
+        '''
         import time
         import json
         import requests
         import os
         import numpy
+        global cluster_count
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS_ip_list = []
+        for i in range(1, 8):
+            ONOS_ip_list.append(main.params['CTRL']['ip'+str(i)])
+        
+        ONOS_user = main.params['CTRL']['user']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
+        default_sw_port = main.params['CTRL']['port1']
 
-        # number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-        num_ignore = int( main.params[ 'TEST' ][ 'numIgnore' ] )
+        #number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        num_ignore = int(main.params['TEST']['numIgnore'])
 
-        # Timestamp keys for json metrics output
-        submit_time = main.params[ 'JSON' ][ 'submittedTime' ]
-        install_time = main.params[ 'JSON' ][ 'installedTime' ]
-        wdRequest_time = main.params[ 'JSON' ][ 'wdRequestTime' ]
-        withdrawn_time = main.params[ 'JSON' ][ 'withdrawnTime' ]
+        #Timestamp keys for json metrics output
+        submit_time = main.params['JSON']['submittedTime']
+        install_time = main.params['JSON']['installedTime']
+        wdRequest_time = main.params['JSON']['wdRequestTime']
+        withdrawn_time = main.params['JSON']['withdrawnTime']
+        
+        assertion = main.TRUE
 
         intent_add_lat_list = []
+        
+        #Distribute switches according to cluster count
+        for i in range(1, 9):
+            if cluster_count == 1:
+                main.Mininet1.assign_sw_controller(
+                    sw=str(i), ip1=ONOS_ip_list[0],
+                    port1=default_sw_port
+                    )
+            elif cluster_count == 3:
+                if i < 3:
+                    index = 0
+                elif i < 6 and i >= 3:
+                    index = 1
+                else:
+                    index = 2
+                main.Mininet1.assign_sw_controller(
+                    sw=str(i), ip1=ONOS_ip_list[index],
+                    port1=default_sw_port
+                    )
+            elif cluster_count == 5:
+                if i < 3:
+                    index = 0
+                elif i < 5 and i >= 3:
+                    index = 1
+                elif i < 7 and i >= 5:
+                    index = 2
+                elif i == 7:
+                    index = 3
+                else:
+                    index = 4
+                main.Mininet1.assign_sw_controller(
+                    sw=str(i), ip1=ONOS_ip_list[index],
+                    port1=default_sw_port
+                    )
+            elif cluster_count == 7:
+                if i < 6:
+                    index = i
+                else:
+                    index = 6
+                main.Mininet1.assign_sw_controller(
+                    sw=str(i), ip1=ONOS_ip_list[index],
+                    port1=default_sw_port
+                    )
 
-        # Assign 'linear' switch format for basic intent testing
-        main.Mininet1.assign_sw_controller(
-            sw="1", ip1=ONOS1_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="2", ip1=ONOS2_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="3", ip1=ONOS2_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="4", ip1=ONOS2_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="5", ip1=ONOS3_ip, port1=default_sw_port )
+        time.sleep(10)
 
-        time.sleep( 10 )
-
-        main.log.report( "Single intent add latency test" )
+        main.log.report("Single intent add latency test")
 
         devices_json_str = main.ONOS1cli.devices()
-        devices_json_obj = json.loads( devices_json_str )
+        devices_json_obj = json.loads(devices_json_str)
+        
+        if not devices_json_obj:
+            main.log.report("Devices not discovered")
+            main.log.report("Aborting test")
+            main.exit()
+        else:
+            main.log.info("Devices discovered successfully")
+
         device_id_list = []
 
-        # Obtain device id list in ONOS format.
-        # They should already be in order ( 1,2,3,10,11,12,13, etc )
+        #Obtain device id list in ONOS format.
+        #They should already be in order (1,2,3,10,11,12,13, etc)
         for device in devices_json_obj:
-            device_id_list.append( device[ 'id' ] )
+            device_id_list.append(device['id'])
 
-        for i in range( 0, int( num_iter ) ):
-            # add_point_intent( ingr_device,  egr_device,
-            #                 ingr_port,    egr_port )
+        for i in range(0, int(num_iter)):
+            #add_point_intent(ingr_device,  egr_device,
+            #                 ingr_port,    egr_port)
             main.ONOS1cli.add_point_intent(
-                device_id_list[ 0 ] + "/1", device_id_list[ 4 ] + "/1" )
+                device_id_list[0]+"/2", device_id_list[7]+"/2")
+        
+            #Allow some time for intents to propagate
+            time.sleep(5)
+            
+            intents_str = main.ONOS1cli.intents(json_format=True)
+            intents_obj = json.loads(intents_str)
+            for intent in intents_obj:
+                if intent['state'] == "INSTALLED":
+                    main.log.info("Intent installed successfully")
+                    intent_id = intent['id']
+                    main.log.info("Intent id: "+str(intent_id))
+                else:
+                    #TODO: Add error handling
+                    main.log.info("Intent installation failed")
+                    intent_id = ""
 
-            # Allow some time for intents to propagate
-            time.sleep( 5 )
-
-            # Obtain metrics from ONOS 1, 2, 3
+            #Obtain metrics from ONOS 1, 2, 3
             intents_json_str_1 = main.ONOS1cli.intents_events_metrics()
-            intents_json_str_2 = main.ONOS2cli.intents_events_metrics()
-            intents_json_str_3 = main.ONOS3cli.intents_events_metrics()
-
-            intents_json_obj_1 = json.loads( intents_json_str_1 )
-            intents_json_obj_2 = json.loads( intents_json_str_2 )
-            intents_json_obj_3 = json.loads( intents_json_str_3 )
-
-            # Parse values from the json object
+            intents_json_obj_1 = json.loads(intents_json_str_1)
+            #Parse values from the json object
             intent_submit_1 = \
-                intents_json_obj_1[ submit_time ][ 'value' ]
-            intent_submit_2 = \
-                intents_json_obj_2[ submit_time ][ 'value' ]
-            intent_submit_3 = \
-                intents_json_obj_3[ submit_time ][ 'value' ]
-
+                    intents_json_obj_1[submit_time]['value']
             intent_install_1 = \
-                intents_json_obj_1[ install_time ][ 'value' ]
-            intent_install_2 = \
-                intents_json_obj_2[ install_time ][ 'value' ]
-            intent_install_3 = \
-                intents_json_obj_3[ install_time ][ 'value' ]
-
+                    intents_json_obj_1[install_time]['value']
             intent_install_lat_1 = \
-                int( intent_install_1 ) - int( intent_submit_1 )
-            intent_install_lat_2 = \
-                int( intent_install_2 ) - int( intent_submit_2 )
-            intent_install_lat_3 = \
-                int( intent_install_3 ) - int( intent_submit_3 )
+                    int(intent_install_1) - int(intent_submit_1)
+            
+            if cluster_count == 3: 
+                intents_json_str_2 = main.ONOS2cli.intents_events_metrics()
+                intents_json_str_3 = main.ONOS3cli.intents_events_metrics()
+                intents_json_obj_2 = json.loads(intents_json_str_2)
+                intents_json_obj_3 = json.loads(intents_json_str_3)
+                intent_submit_2 = \
+                    intents_json_obj_2[submit_time]['value']
+                intent_submit_3 = \
+                    intents_json_obj_3[submit_time]['value']
+                intent_install_2 = \
+                    intents_json_obj_2[install_time]['value']
+                intent_install_3 = \
+                    intents_json_obj_3[install_time]['value']
+                intent_install_lat_2 = \
+                    int(intent_install_2) - int(intent_submit_2)
+                intent_install_lat_3 = \
+                    int(intent_install_3) - int(intent_submit_3)
+            else:
+                intent_install_lat_2 = 0
+                intent_install_lat_3 = 0
+
+            if cluster_count == 5:
+                intents_json_str_4 = main.ONOS4cli.intents_events_metrics()
+                intents_json_str_5 = main.ONOS5cli.intents_events_metrics()
+                intents_json_obj_4 = json.loads(intents_json_str_4)
+                intents_json_obj_5 = json.loads(intents_json_str_5)
+                intent_submit_4 = \
+                    intents_json_obj_4[submit_time]['value']
+                intent_submit_5 = \
+                    intents_json_obj_5[submit_time]['value']
+                intent_install_4 = \
+                    intents_json_obj_5[install_time]['value']
+                intent_install_5 = \
+                    intents_json_obj_5[install_time]['value']
+                intent_install_lat_4 = \
+                    int(intent_install_4) - int(intent_submit_4)
+                intent_install_lat_5 = \
+                    int(intent_install_5) - int(intent_submit_5)
+            else:
+                intent_install_lat_4 = 0
+                intent_install_lat_5 = 0
+
+            if cluster_count == 7:
+                intents_json_str_6 = main.ONOS6cli.intents_events_metrics()
+                intents_json_str_7 = main.ONOS7cli.intents_events_metrics()
+                intents_json_obj_6 = json.loads(intents_json_str_6)
+                intents_json_obj_7 = json.loads(intents_json_str_7)
+                intent_submit_6 = \
+                    intents_json_obj_6[submit_time]['value']
+                intent_submit_7 = \
+                    intents_json_obj_6[submit_time]['value']
+                intent_install_6 = \
+                    intents_json_obj_6[install_time]['value']
+                intent_install_7 = \
+                    intents_json_obj_7[install_time]['value']
+                intent_install_lat_6 = \
+                    int(intent_install_6) - int(intent_submit_6)
+                intent_install_lat_7 = \
+                    int(intent_install_7) - int(intent_submit_7)
+            else:
+                intent_install_lat_6 = 0
+                intent_install_lat_7 = 0
 
             intent_install_lat_avg = \
-                ( intent_install_lat_1 +
-                  intent_install_lat_2 +
-                  intent_install_lat_3 ) / 3
+                    (intent_install_lat_1 + 
+                     intent_install_lat_2 +
+                     intent_install_lat_3 +
+                     intent_install_lat_4 +
+                     intent_install_lat_5 +
+                     intent_install_lat_6 +
+                     intent_install_lat_7) / cluster_count
 
-            main.log.info( "Intent add latency avg for iteration " + str( i ) +
-                           ": " + str( intent_install_lat_avg ) + " ms" )
+            main.log.info("Intent add latency avg for iteration "+str(i)+
+                    ": "+str(intent_install_lat_avg)+" ms")
 
             if intent_install_lat_avg > 0.0 and \
                intent_install_lat_avg < 1000 and i > num_ignore:
-                intent_add_lat_list.append( intent_install_lat_avg )
+                intent_add_lat_list.append(intent_install_lat_avg)
             else:
-                main.log.info( "Intent add latency exceeded " +
-                               "threshold. Skipping iteration " + str( i ) )
+                main.log.info("Intent add latency exceeded "+
+                        "threshold. Skipping iteration "+str(i))
 
-            time.sleep( 3 )
-
-            # TODO: Possibly put this in the driver function
-            main.log.info( "Removing intents for next iteration" )
+            time.sleep(3)
+            
+            #TODO: Only remove intents that were installed 
+            #      in this case... Otherwise many other intents
+            #      may show up distorting the results
+            main.log.info("Removing intents for next iteration")
             json_temp = \
-                main.ONOS1cli.intents( json_format=True )
-            json_obj_intents = json.loads( json_temp )
+                    main.ONOS1cli.intents(json_format=True)
+            json_obj_intents = json.loads(json_temp)
             if json_obj_intents:
                 for intents in json_obj_intents:
-                    temp_id = intents[ 'id' ]
-                    main.ONOS1cli.remove_intent( temp_id )
-                    main.log.info( "Removing intent id: " +
-                                   str( temp_id ) )
-                    main.ONOS1cli.remove_intent( temp_id )
+                    temp_id = intents['id']
+                    #main.ONOS1cli.remove_intent(temp_id)
+                    main.log.info("Removing intent id: "+
+                        str(temp_id))
+                    main.ONOS1cli.remove_intent(temp_id)
             else:
-                main.log.info( "Intents were not installed correctly" )
+                main.log.info("Intents were not installed correctly")
 
-            time.sleep( 5 )
+            time.sleep(5)
 
-        intent_add_lat_avg = sum( intent_add_lat_list ) /\
-            len( intent_add_lat_list )
+        if intent_add_lat_list:
+            intent_add_lat_avg = sum(intent_add_lat_list) /\
+                             len(intent_add_lat_list)
+        else:
+            main.log.report("Intent installation latency test failed")
+            intent_add_lat_avg = "NA"
+            assertion = main.FALSE
+
         intent_add_lat_std = \
-            round( numpy.std( intent_add_lat_list ), 1 )
-        # END ITERATION FOR LOOP
-        main.log.report( "Single intent add latency - " )
-        main.log.report( "Avg: " + str( intent_add_lat_avg ) + " ms" )
-        main.log.report(
-            "Std Deviation: " +
-            str( intent_add_lat_std ) +
-            " ms" )
+            round(numpy.std(intent_add_lat_list),1)
+        #END ITERATION FOR LOOP
+        main.log.report("Single intent add latency - ")
+        main.log.report("Avg: "+str(intent_add_lat_avg)+" ms")
+        main.log.report("Std Deviation: "+str(intent_add_lat_std)+" ms")
+        
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+            onpass="Single intent install latency test successful",
+            onfail="Single intent install latency test failed")
 
-    def CASE3( self, main ):
-        """
+    def CASE3(self, main):
+        '''
         Intent Reroute latency
-        """
+        '''
         import time
         import json
         import requests
         import os
         import numpy
+        global cluster_count
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS_user = main.params['CTRL']['user']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
+        default_sw_port = main.params['CTRL']['port1']
 
-        # number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-        num_ignore = int( main.params[ 'TEST' ][ 'numIgnore' ] )
+        #number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        num_ignore = int(main.params['TEST']['numIgnore'])
+        assertion = main.TRUE
 
-        # Timestamp keys for json metrics output
-        submit_time = main.params[ 'JSON' ][ 'submittedTime' ]
-        install_time = main.params[ 'JSON' ][ 'installedTime' ]
-        wdRequest_time = main.params[ 'JSON' ][ 'wdRequestTime' ]
-        withdrawn_time = main.params[ 'JSON' ][ 'withdrawnTime' ]
+        #Timestamp keys for json metrics output
+        submit_time = main.params['JSON']['submittedTime']
+        install_time = main.params['JSON']['installedTime']
+        wdRequest_time = main.params['JSON']['wdRequestTime']
+        withdrawn_time = main.params['JSON']['withdrawnTime']
+
+        #NOTE: May need to configure interface depending on topology
+        intfs = main.params['TEST']['intfs']
 
         devices_json_str = main.ONOS1cli.devices()
-        devices_json_obj = json.loads( devices_json_str )
+        devices_json_obj = json.loads(devices_json_str)
 
         device_id_list = []
 
-        # Obtain device id list in ONOS format.
-        # They should already be in order ( 1,2,3,10,11,12,13, etc )
+        #Obtain device id list in ONOS format.
+        #They should already be in order (1,2,3,10,11,12,13, etc)
         for device in devices_json_obj:
-            device_id_list.append( device[ 'id' ] )
+            device_id_list.append(device['id'])
 
         intent_reroute_lat_list = []
 
-        for i in range( 0, int( num_iter ) ):
-            # add_point_intent( ingr_device, ingr_port,
-            #                 egr_device, egr_port )
-            if len( device_id_list ) > 0:
+        for i in range(0, int(num_iter)):
+            #add_point_intent(ingr_device, ingr_port, 
+            #                 egr_device, egr_port)
+            if len(device_id_list) > 0:
                 main.ONOS1cli.add_point_intent(
-                    device_id_list[ 0 ] + "/2", device_id_list[ 4 ] + "/1" )
+                    device_id_list[0]+"/2", device_id_list[7]+"/2")
             else:
-                main.log.info( "Failed to fetch devices from ONOS" )
+                main.log.info("Failed to fetch devices from ONOS")
 
-            time.sleep( 5 )
+            time.sleep(5)
 
-            intents_str = main.ONOS1cli.intents( json_format=True )
-            intents_obj = json.loads( intents_str )
+            intents_str = main.ONOS1cli.intents(json_format=True)
+            intents_obj = json.loads(intents_str)
             for intent in intents_obj:
-                if intent[ 'state' ] == "INSTALLED":
-                    main.log.info( "Intent installed successfully" )
-                    intent_id = intent[ 'id' ]
+                if intent['state'] == "INSTALLED":
+                    main.log.info("Intent installed successfully")
+                    intent_id = intent['id']
+                    main.log.info("Intent id: "+str(intent_id))
                 else:
-                    # TODO: Add error handling
-                    main.log.info( "Intent installation failed" )
+                    #TODO: Add error handling
+                    main.log.info("Intent installation failed")
                     intent_id = ""
-
-            # NOTE: this interface is specific to
-            #      topo-intentFlower.py topology
-            #      reroute case.
-            main.log.info( "Disabling interface s2-eth3" )
+            
+            main.log.info("Disabling interface "+intfs)
+            t0_system = time.time()*1000
             main.Mininet1.handle.sendline(
-                "sh ifconfig s2-eth3 down" )
-            t0_system = time.time() * 1000
+                    "sh ifconfig "+intfs+" down")
+            main.Mininet1.handle.expect("mininet>")    
 
-            # TODO: Check for correct intent reroute
-            time.sleep( 5 )
+            #TODO: Check for correct intent reroute
+            time.sleep(1)
 
-            # Obtain metrics from ONOS 1, 2, 3
+            #Obtain metrics from ONOS 1, 2, 3
             intents_json_str_1 = main.ONOS1cli.intents_events_metrics()
-            intents_json_str_2 = main.ONOS2cli.intents_events_metrics()
-            intents_json_str_3 = main.ONOS3cli.intents_events_metrics()
-
-            intents_json_obj_1 = json.loads( intents_json_str_1 )
-            intents_json_obj_2 = json.loads( intents_json_str_2 )
-            intents_json_obj_3 = json.loads( intents_json_str_3 )
-
-            # Parse values from the json object
+            intents_json_obj_1 = json.loads(intents_json_str_1)
+            #Parse values from the json object
             intent_install_1 = \
-                intents_json_obj_1[ install_time ][ 'value' ]
-            intent_install_2 = \
-                intents_json_obj_2[ install_time ][ 'value' ]
-            intent_install_3 = \
-                intents_json_obj_3[ install_time ][ 'value' ]
-
+                    intents_json_obj_1[install_time]['value']
             intent_reroute_lat_1 = \
-                int( intent_install_1 ) - int( t0_system )
-            intent_reroute_lat_2 = \
-                int( intent_install_2 ) - int( t0_system )
-            intent_reroute_lat_3 = \
-                int( intent_install_3 ) - int( t0_system )
+                    int(intent_install_1) - int(t0_system)
+            
+            if cluster_count == 3:
+                intents_json_str_2 = main.ONOS2cli.intents_events_metrics()
+                intents_json_str_3 = main.ONOS3cli.intents_events_metrics()
+
+                intents_json_obj_2 = json.loads(intents_json_str_2)
+                intents_json_obj_3 = json.loads(intents_json_str_3)
+                intent_install_2 = \
+                    intents_json_obj_2[install_time]['value']
+                intent_install_3 = \
+                    intents_json_obj_3[install_time]['value']
+                intent_reroute_lat_2 = \
+                    int(intent_install_2) - int(t0_system)
+                intent_reroute_lat_3 = \
+                    int(intent_install_3) - int(t0_system)
+            else:
+                intent_reroute_lat_2 = 0
+                intent_reroute_lat_3 = 0
+
+            if cluster_count == 5:
+                intents_json_str_4 = main.ONOS4cli.intents_events_metrics()
+                intents_json_str_5 = main.ONOS5cli.intents_events_metrics()
+
+                intents_json_obj_4 = json.loads(intents_json_str_4)
+                intents_json_obj_5 = json.loads(intents_json_str_5)
+                intent_install_4 = \
+                    intents_json_obj_4[install_time]['value']
+                intent_install_5 = \
+                    intents_json_obj_5[install_time]['value']
+                intent_reroute_lat_4 = \
+                    int(intent_install_4) - int(t0_system)
+                intent_reroute_lat_5 = \
+                    int(intent_install_5) - int(t0_system)
+            else:
+                intent_reroute_lat_4 = 0
+                intent_reroute_lat_5 = 0
+
+            if cluster_count == 7:
+                intents_json_str_6 = main.ONOS6cli.intents_events_metrics()
+                intents_json_str_7 = main.ONOS7cli.intents_events_metrics()
+
+                intents_json_obj_6 = json.loads(intents_json_str_6)
+                intents_json_obj_7 = json.loads(intents_json_str_7)
+                intent_install_6 = \
+                    intents_json_obj_6[install_time]['value']
+                intent_install_7 = \
+                    intents_json_obj_7[install_time]['value']
+                intent_reroute_lat_6 = \
+                    int(intent_install_6) - int(t0_system)
+                intent_reroute_lat_7 = \
+                    int(intent_install_7) - int(t0_system)
+            else:
+                intent_reroute_lat_6 = 0
+                intent_reroute_lat_7 = 0
 
             intent_reroute_lat_avg = \
-                ( intent_reroute_lat_1 +
-                  intent_reroute_lat_2 +
-                  intent_reroute_lat_3 ) / 3
-
-            main.log.info( "Intent reroute latency avg for iteration " +
-                           str( i ) + ": " + str( intent_reroute_lat_avg ) )
+                    (intent_reroute_lat_1 + 
+                     intent_reroute_lat_2 +
+                     intent_reroute_lat_3 +
+                     intent_reroute_lat_4 +
+                     intent_reroute_lat_5 +
+                     intent_reroute_lat_6 +
+                     intent_reroute_lat_7) / cluster_count 
+    
+            main.log.info("Intent reroute latency avg for iteration "+
+                    str(i)+": "+str(intent_reroute_lat_avg))
 
             if intent_reroute_lat_avg > 0.0 and \
                intent_reroute_lat_avg < 1000 and i > num_ignore:
-                intent_reroute_lat_list.append( intent_reroute_lat_avg )
+                intent_reroute_lat_list.append(intent_reroute_lat_avg)
             else:
-                main.log.info( "Intent reroute latency exceeded " +
-                               "threshold. Skipping iteration " + str( i ) )
+                main.log.info("Intent reroute latency exceeded "+
+                        "threshold. Skipping iteration "+str(i))
 
-            main.log.info( "Removing intents for next iteration" )
-            main.ONOS1cli.remove_intent( intent_id )
+            main.log.info("Removing intents for next iteration")
+            main.ONOS1cli.remove_intent(intent_id)
 
-            main.log.info( "Bringing Mininet interface up for next " +
-                           "iteration" )
+            main.log.info("Bringing Mininet interface up for next "+
+                "iteration")
             main.Mininet1.handle.sendline(
-                "sh ifconfig s2-eth3 up" )
+                    "sh ifconfig "+intfs+" up")
+            main.Mininet1.handle.expect("mininet>")
 
-        intent_reroute_lat_avg = sum( intent_reroute_lat_list ) /\
-            len( intent_reroute_lat_list )
+        if intent_reroute_lat_list:
+            intent_reroute_lat_avg = sum(intent_reroute_lat_list) /\
+                             len(intent_reroute_lat_list)
+        else:
+            main.log.report("Intent reroute test failed. Results NA")
+            intent_reroute_lat_avg = "NA" 
+            #NOTE: fails test when list is empty
+            assertion = main.FALSE
+        
         intent_reroute_lat_std = \
-            round( numpy.std( intent_reroute_lat_list ), 1 )
-        # END ITERATION FOR LOOP
-        main.log.report( "Single intent reroute latency - " )
-        main.log.report( "Avg: " + str( intent_reroute_lat_avg ) + " ms" )
-        main.log.report(
-            "Std Deviation: " +
-            str( intent_reroute_lat_std ) +
-            " ms" )
-
-    def CASE7( self, main ):
-        """
-        Batch intent reroute latency
-        """
-        import time
-        import json
-        import requests
-        import os
-        import numpy
-
-        ONOS_ip_list = []
-        for i in range( 1, 8 ):
-            ONOS_ip_list.append( main.params[ 'CTRL' ][ 'ip' + str( i ) ] )
-
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
-
-        batch_intent_size = main.params[ 'TEST' ][ 'batchIntentSize' ]
-        batch_thresh_min = int( main.params[ 'TEST' ][ 'batchThresholdMin' ] )
-        batch_thresh_max = int( main.params[ 'TEST' ][ 'batchThresholdMax' ] )
-        install_time = main.params[ 'JSON' ][ 'installedTime' ]
-
-        # number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-        num_ignore = int( main.params[ 'TEST' ][ 'numIgnore' ] )
-        num_switch = int( main.params[ 'TEST' ][ 'numSwitch' ] )
-        n_thread = main.params[ 'TEST' ][ 'numMult' ]
-
-        main.log.report( "Batch intent installation test of " +
-                         batch_intent_size + " intents" )
-
-        batch_result_list = []
-
-        # Assign 'linear' switch format for basic intent testing
-        main.Mininet1.assign_sw_controller(
-            sw="1", ip1=ONOS1_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="2", ip1=ONOS2_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="3", ip1=ONOS2_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="4", ip1=ONOS2_ip, port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="5", ip1=ONOS3_ip, port1=default_sw_port )
-
-        time.sleep( 10 )
-
-        main.log.info( "Getting list of available devices" )
-        device_id_list = []
-        json_str = main.ONOS1cli.devices()
-        json_obj = json.loads( json_str )
-        for device in json_obj:
-            device_id_list.append( device[ 'id' ] )
-
-        batch_install_lat = []
-        batch_withdraw_lat = []
-        sleep_time = 10
-
-        base_dir = "/tmp/"
-        max_install_lat = []
-
-        for i in range( 0, int( num_iter ) ):
-            main.log.info( "Pushing " +
-                           str( int( batch_intent_size ) * int( n_thread ) ) +
-                           " intents. Iteration " + str( i ) )
-
-            main.ONOS1cli.push_test_intents(
-                "of:0000000000000001/1",
-                "of:0000000000000005/1",
-                1000, num_mult="1", app_id="1" )
-
-            # TODO: Check for installation success then proceed
-            time.sleep( 30 )
-
-            # NOTE: this interface is specific to
-            #      topo-intentFlower.py topology
-            #      reroute case.
-            main.log.info( "Disabling interface s2-eth3" )
-            main.Mininet1.handle.sendline(
-                "sh ifconfig s2-eth3 down" )
-            t0_system = time.time() * 1000
-
-            # TODO: Wait sufficient time for intents to install
-            time.sleep( 10 )
-
-            # TODO: get intent installation time
-
-            # Obtain metrics from ONOS 1, 2, 3
-            intents_json_str_1 = main.ONOS1cli.intents_events_metrics()
-            intents_json_str_2 = main.ONOS2cli.intents_events_metrics()
-            intents_json_str_3 = main.ONOS3cli.intents_events_metrics()
-
-            intents_json_obj_1 = json.loads( intents_json_str_1 )
-            intents_json_obj_2 = json.loads( intents_json_str_2 )
-            intents_json_obj_3 = json.loads( intents_json_str_3 )
-
-            # Parse values from the json object
-            intent_install_1 = \
-                intents_json_obj_1[ install_time ][ 'value' ]
-            intent_install_2 = \
-                intents_json_obj_2[ install_time ][ 'value' ]
-            intent_install_3 = \
-                intents_json_obj_3[ install_time ][ 'value' ]
-
-            intent_reroute_lat_1 = \
-                int( intent_install_1 ) - int( t0_system )
-            intent_reroute_lat_2 = \
-                int( intent_install_2 ) - int( t0_system )
-            intent_reroute_lat_3 = \
-                int( intent_install_3 ) - int( t0_system )
-
-            intent_reroute_lat_avg = \
-                ( intent_reroute_lat_1 +
-                  intent_reroute_lat_2 +
-                  intent_reroute_lat_3 ) / 3
-
-            main.log.info( "Intent reroute latency avg for iteration " +
-                           str( i ) + ": " + str( intent_reroute_lat_avg ) )
-            # TODO: Remove intents for next iteration
-
-            time.sleep( 5 )
-
-            intents_str = main.ONOS1cli.intents()
-            intents_json = json.loads( intents_str )
-            for intents in intents_json:
-                intent_id = intents[ 'id' ]
-                if intent_id:
-                    main.ONOS1cli.remove_intent( intent_id )
-
-            main.Mininet1.handle.sendline(
-                "sh ifconfig s2-eth3 up" )
-
-            main.log.info( "Intents removed and port back up" )
-
-    def CASE4( self, main ):
-        """
+            round(numpy.std(intent_reroute_lat_list),1)
+        #END ITERATION FOR LOOP
+        main.log.report("Single intent reroute latency - ")
+        main.log.report("Avg: "+str(intent_reroute_lat_avg)+" ms")
+        main.log.report("Std Deviation: "+str(intent_reroute_lat_std)+" ms")
+       
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+            onpass="Single intent reroute latency test successful",
+            onfail="Single intent reroute latency test failed")
+        
+    def CASE4(self, main):
+        '''
         Batch intent install
-        """
+        '''
+        
         import time
         import json
         import requests
         import os
         import numpy
+        global cluster_count
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS4_ip = main.params[ 'CTRL' ][ 'ip4' ]
-        ONOS5_ip = main.params[ 'CTRL' ][ 'ip5' ]
-        ONOS6_ip = main.params[ 'CTRL' ][ 'ip6' ]
-        ONOS7_ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
+
+        assertion = main.TRUE
 
         ONOS_ip_list = []
-        for i in range( 1, 8 ):
-            ONOS_ip_list.append( main.params[ 'CTRL' ][ 'ip' + str( i ) ] )
+        for i in range(1, 8):
+            ONOS_ip_list.append(main.params['CTRL']['ip'+str(i)])
 
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        ONOS_user = main.params['CTRL']['user']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
+        default_sw_port = main.params['CTRL']['port1']
+    
+        batch_intent_size = main.params['TEST']['batchIntentSize']
+        batch_thresh_min = int(main.params['TEST']['batchThresholdMin'])
+        batch_thresh_max = int(main.params['TEST']['batchThresholdMax'])
 
-        batch_intent_size = main.params[ 'TEST' ][ 'batchIntentSize' ]
-        batch_thresh_min = int( main.params[ 'TEST' ][ 'batchThresholdMin' ] )
-        batch_thresh_max = int( main.params[ 'TEST' ][ 'batchThresholdMax' ] )
-
-        # number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-        num_ignore = int( main.params[ 'TEST' ][ 'numIgnore' ] )
-        num_switch = int( main.params[ 'TEST' ][ 'numSwitch' ] )
-        n_thread = main.params[ 'TEST' ][ 'numMult' ]
+        #number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        num_ignore = int(main.params['TEST']['numIgnore'])
+        num_switch = int(main.params['TEST']['numSwitch'])
+        n_thread = main.params['TEST']['numMult']
         #n_thread = 105
 
-        #*****
-        global cluster_count
-        #*****
-
-        # Switch assignment NOTE: hardcoded
+        #Switch assignment NOTE: hardcoded 
         if cluster_count == 1:
-            for i in range( 1, num_switch + 1 ):
+            for i in range(1, num_switch+1):
                 main.Mininet1.assign_sw_controller(
-                    sw=str( i ),
+                    sw=str(i), 
                     ip1=ONOS1_ip,
-                    port1=default_sw_port )
+                    port1=default_sw_port)
         if cluster_count == 3:
-            for i in range( 1, 3 ):
+            for i in range(1, 3):
                 main.Mininet1.assign_sw_controller(
-                    sw=str( i ),
+                    sw=str(i),
                     ip1=ONOS1_ip,
-                    port1=default_sw_port )
-            for i in range( 3, 6 ):
+                    port1=default_sw_port)
+            for i in range(3, 6):
                 main.Mininet1.assign_sw_controller(
-                    sw=str( i ),
+                    sw=str(i),
                     ip1=ONOS2_ip,
-                    port1=default_sw_port )
-            for i in range( 6, 9 ):
+                    port1=default_sw_port)
+            for i in range(6, 9):
                 main.Mininet1.assign_sw_controller(
-                    sw=str( i ),
+                    sw=str(i),
                     ip1=ONOS3_ip,
-                    port1=default_sw_port )
+                    port1=default_sw_port)
         if cluster_count == 5:
             main.Mininet1.assign_sw_controller(
-                sw="1",
-                ip1=ONOS1_ip,
-                port1=default_sw_port )
+                    sw="1",
+                    ip1=ONOS1_ip,
+                    port1=default_sw_port)
             main.Mininet1.assign_sw_controller(
-                sw="2",
-                ip1=ONOS2_ip,
-                port1=default_sw_port )
-            for i in range( 3, 6 ):
+                    sw="2",
+                    ip1=ONOS2_ip,
+                    port1=default_sw_port)
+            for i in range(3, 6):
                 main.Mininet1.assign_sw_controller(
-                    sw=str( i ),
+                    sw=str(i),
                     ip1=ONOS3_ip,
-                    port1=default_sw_port )
+                    port1=default_sw_port)
             main.Mininet1.assign_sw_controller(
-                sw="6",
-                ip1=ONOS4_ip,
-                port1=default_sw_port )
+                    sw="6",
+                    ip1=ONOS4_ip,
+                    port1=default_sw_port)
             main.Mininet1.assign_sw_controller(
-                sw="7",
-                ip1=ONOS5_ip,
-                port1=default_sw_port )
+                    sw="7",
+                    ip1=ONOS5_ip,
+                    port1=default_sw_port)
             main.Mininet1.assign_sw_controller(
-                sw="8",
-                ip1=ONOS5_ip,
-                port1=default_sw_port )
-
+                    sw="8",
+                    ip1=ONOS5_ip,
+                    port1=default_sw_port)
+        
         if cluster_count == 7:
-            for i in range( 1, 9 ):
+            for i in range(1,9):
                 if i < 8:
                     main.Mininet1.assign_sw_controller(
-                        sw=str( i ),
-                        ip1=ONOS_ip_list[ i - 1 ],
-                        port1=default_sw_port )
-                elif i >= 8:
+                        sw=str(i),
+                        ip1=ONOS_ip_list[i-1],
+                        port1=default_sw_port)
+                elif i >= 8: 
                     main.Mininet1.assign_sw_controller(
-                        sw=str( i ),
-                        ip1=ONOS_ip_list[ 6 ],
-                        port1=default_sw_port )
+                        sw=str(i),
+                        ip1=ONOS_ip_list[6],
+                        port1=default_sw_port)
 
-        time.sleep( 30 )
+        time.sleep(20)
 
-        main.log.report( "Batch intent installation test of " +
-                         batch_intent_size + " intents" )
+        main.log.report("Batch intent installation test of "+
+               batch_intent_size +" intent(s)")
 
         batch_result_list = []
 
-        main.log.info( "Getting list of available devices" )
+        main.log.info("Getting list of available devices")
         device_id_list = []
         json_str = main.ONOS1cli.devices()
-        json_obj = json.loads( json_str )
+        json_obj = json.loads(json_str)
         for device in json_obj:
-            device_id_list.append( device[ 'id' ] )
+            device_id_list.append(device['id'])
 
         batch_install_lat = []
         batch_withdraw_lat = []
-        sleep_time = 10
-
-        base_dir = "/tmp/"
+        
+        #Max intent install measurement of all nodes
         max_install_lat = []
+        max_withdraw_lat = []
+        sleep_time = 10
+        
+        base_dir = "/tmp/"
 
-        for i in range( 0, int( num_iter ) ):
-            main.log.info( "Pushing " +
-                           str( int( batch_intent_size ) * int( n_thread ) ) +
-                           " intents. Iteration " + str( i ) )
+        for batch in range(0, 5):
+            for i in range(0, int(num_iter)):
+                main.log.info("Pushing "+
+                    str(int(batch_intent_size)*int(n_thread))+
+                    " intents. Iteration "+str(i))
+               
+                for node in range(1, cluster_count+1):
+                    save_dir = base_dir + "batch_intent_"+str(node)+".txt" 
+                    main.ONOSbench.push_test_intents_shell(
+                    device_id_list[0]+"/2",
+                    device_id_list[7]+"/2",
+                    int(batch_intent_size),
+                    save_dir, ONOS_ip_list[node-1],
+                    num_mult=n_thread, app_id=node)
+         
+                #Wait sufficient time for intents to start
+                #installing
+                time.sleep(sleep_time)
 
-            for node in range( 1, cluster_count + 1 ):
-                save_dir = base_dir + "batch_intent_" + str( node ) + ".txt"
-                main.ONOSbench.push_test_intents_shell(
-                    "of:0000000000000001/" + str( node ),
-                    "of:0000000000000008/" + str( node ),
-                    int( batch_intent_size ),
-                    save_dir, ONOS_ip_list[ node - 1 ],
-                    num_mult=n_thread, app_id=node )
+                intent = ""
+                counter = 300
+                while len(intent) > 0 and counter > 0:
+                    main.ONOS1cli.handle.sendline(
+                        "intents | wc -l")
+                    main.ONOS1cli.handle.expect(
+                        "intents | wc -l")
+                    main.ONOS1cli.handle.expect(
+                        "onos>")
+                    intent_temp = main.ONOS1cli.handle.before()
+                    intent = main.ONOS1cli.intents()
+                    intent = json.loads(intent)
+                    counter = counter-1
+                    time.sleep(1)
 
-            # Wait sufficient time for intents to start
-            # installing
+                time.sleep(5)
 
-            time.sleep( sleep_time )
-            print sleep_time
+                for node in range(1, cluster_count+1):
+                    save_dir = base_dir + "batch_intent_"+str(node)+".txt"
+                    with open(save_dir) as f_onos:
+                        line_count = 0
+                        for line in f_onos:
+                            line = line[1:]
+                            line = line.split(": ")
+                            main.log.info("Line read: "+str(line))
+                            result = line[1].split(" ")[0]
+                            #TODO: add parameters before appending latency
+                            if line_count == 0:
+                                batch_install_lat.append(int(result))
+                                install_result = result
+                            elif line_count == 1:
+                                batch_withdraw_lat.append(int(result))
+                                withdraw_result = result
+                            line_count += 1
+                    main.log.info("Batch install latency for ONOS"+
+                        str(node)+" with "+\
+                        str(batch_intent_size) + "intents: "+\
+                        str(install_result)+" ms")
+                    main.log.info("Batch withdraw latency for ONOS"+
+                        str(node)+" with "+
+                        str(batch_intent_size) + "intents: "+
+                        str(withdraw_result)+" ms")
 
-            intent = ""
-            counter = 300
-            while len( intent ) > 0 and counter > 0:
-                main.ONOS1cli.handle.sendline(
-                    "intents | wc -l" )
-                main.ONOS1cli.handle.expect(
-                    "intents | wc -l" )
-                main.ONOS1cli.handle.expect(
-                    "onos>" )
-                intent_temp = main.ONOS1cli.handle.before()
-                print intent_temp
+                if len(batch_install_lat) > 0 and int(i) > num_ignore:
+                    max_install_lat.append(max(batch_install_lat))
+                elif len(batch_install_lat) == 0:
+                    #If I failed to read anything from the file,
+                    #increase the wait time before checking intents
+                    sleep_time += 30
+                if len(batch_withdraw_lat) > 0 and int(i) > num_ignore:
+                    max_withdraw_lat.append(max(batch_withdraw_lat))
+                batch_install_lat = []
+                batch_withdraw_lat = []
+    
+                #Sleep in between iterations
+                time.sleep(5)
+            
+            if max_install_lat:
+                avg_install_lat = str(sum(max_install_lat) /\
+                                  len(max_install_lat))
+            else:
+                avg_install_lat = "NA"
+                main.log.report("Batch installation failed")
+                assertion = main.FALSE
 
-                intent = main.ONOS1cli.intents()
-                intent = json.loads( intent )
-                counter = counter - 1
-                time.sleep( 1 )
+            if max_withdraw_lat:
+                avg_withdraw_lat = str(sum(max_withdraw_lat) /\
+                                   len(max_withdraw_lat))
+            else:
+                avg_withdraw_lat = "NA"
+                main.log.report("Batch withdraw failed")
+                assertion = main.FALSE
 
-            time.sleep( 5 )
+            main.log.report("Avg of batch installation latency "+
+                "of size "+batch_intent_size+": "+
+                str(avg_install_lat)+" ms")
+            main.log.report("Std Deviation of batch installation latency "+
+                ": "+str(numpy.std(max_install_lat))+" ms")
 
-            for node in range( 1, cluster_count + 1 ):
-                save_dir = base_dir + "batch_intent_" + str( node ) + ".txt"
-                with open( save_dir ) as f_onos:
-                    line_count = 0
-                    for line in f_onos:
-                        line = line[ 1: ]
-                        line = line.split( ": " )
-                        result = line[ 1 ].split( " " )[ 0 ]
-                        # TODO: add parameters before appending latency
-                        if line_count == 0:
-                            batch_install_lat.append( int( result ) )
-                        elif line_count == 1:
-                            batch_withdraw_lat.append( int( result ) )
-                        line_count += 1
-                main.log.info( "Batch install latency for ONOS" +
-                               str( node ) + " with " +
-                               str( batch_intent_size ) + "intents: " +
-                               str( batch_install_lat ) )
+            main.log.report("Avg of batch withdraw latency "+
+                "of size "+batch_intent_size+": "+
+                str(avg_withdraw_lat)+" ms")
+            main.log.report("Std Deviation of batch withdraw latency "+
+                ": "+str(numpy.std(max_withdraw_lat))+" ms")
+           
+            batch_intent_size += 1000
+            main.log.report("Increasing batch intent size to "+
+                             batch_intent_size)
+           
+        #main.log.info("Removing all intents for next test case")
+        #json_temp = main.ONOS1cli.intents(json_format=True)
+        #json_obj_intents = json.loads(json_temp)
+        #if json_obj_intents:
+        #    for intents in json_obj_intents:
+        #        temp_id = intents['id']
+                #main.ONOS1cli.remove_intent(temp_id)
+        #        main.ONOS1cli.remove_intent(temp_id)
+        
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+            onpass="Batch intent install/withdraw test successful",
+            onfail="Batch intent install/withdraw test failed")
 
-            if len( batch_install_lat ) > 0 and int( i ) > num_ignore:
-                max_install_lat.append( max( batch_install_lat ) )
-            elif len( batch_install_lat ) == 0:
-                # If I failed to read anything from the file,
-                # increase the wait time before checking intents
-                sleep_time += 30
-            batch_install_lat = []
-
-            # Sleep in between iterations
-            time.sleep( 5 )
-
-        main.log.report( "Avg of batch installation latency " +
-                         ": " +
-                         str( sum( max_install_lat ) /
-                              len( max_install_lat ) ) )
-        main.log.report( "Std Deviation of batch installation latency " +
-                         ": " +
-                         str( numpy.std( max_install_lat ) ) )
-
-    def CASE5( self, main ):
-        """
+    def CASE5(self,main):
+        '''
         Increase number of nodes and initiate CLI
-        """
+        '''
         import time
         import json
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS4_ip = main.params[ 'CTRL' ][ 'ip4' ]
-        ONOS5_ip = main.params[ 'CTRL' ][ 'ip5' ]
-        ONOS6_ip = main.params[ 'CTRL' ][ 'ip6' ]
-        ONOS7_ip = main.params[ 'CTRL' ][ 'ip7' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
 
         global cluster_count
         cluster_count += 2
-        main.log.report( "Increasing cluster size to " +
-                         str( cluster_count ) )
+        main.log.report("Increasing cluster size to "+
+                str(cluster_count))
 
         install_result = main.FALSE
 
         if cluster_count == 3:
             install_result1 = \
-                main.ONOSbench.onos_install( node=ONOS2_ip )
+                main.ONOSbench.onos_install(node=ONOS2_ip)
             install_result2 = \
-                main.ONOSbench.onos_install( node=ONOS3_ip )
-            time.sleep( 5 )
+                main.ONOSbench.onos_install(node=ONOS3_ip)
+            time.sleep(5)
 
-            main.log.info( "Starting ONOS CLI" )
-            main.ONOS2cli.start_onos_cli( ONOS2_ip )
-            main.ONOS3cli.start_onos_cli( ONOS3_ip )
+            main.log.info("Starting ONOS CLI")
+            main.ONOS2cli.start_onos_cli(ONOS2_ip)
+            main.ONOS3cli.start_onos_cli(ONOS3_ip)
 
             install_result = install_result1 and install_result2
 
         if cluster_count == 5:
-            main.log.info( "Installing ONOS on node 4 and 5" )
+            main.log.info("Installing ONOS on node 4 and 5")
             install_result1 = \
-                main.ONOSbench.onos_install( node=ONOS4_ip )
+                main.ONOSbench.onos_install(node=ONOS4_ip)
             install_result2 = \
-                main.ONOSbench.onos_install( node=ONOS5_ip )
+                main.ONOSbench.onos_install(node=ONOS5_ip)
 
-            main.log.info( "Starting ONOS CLI" )
-            main.ONOS4cli.start_onos_cli( ONOS4_ip )
-            main.ONOS5cli.start_onos_cli( ONOS5_ip )
+            main.log.info("Starting ONOS CLI")
+            main.ONOS4cli.start_onos_cli(ONOS4_ip)
+            main.ONOS5cli.start_onos_cli(ONOS5_ip)
 
             install_result = install_result1 and install_result2
 
         if cluster_count == 7:
-            main.log.info( "Installing ONOS on node 6 and 7" )
+            main.log.info("Installing ONOS on node 6 and 7")
             install_result1 = \
-                main.ONOSbench.onos_install( node=ONOS6_ip )
+                main.ONOSbench.onos_install(node=ONOS6_ip)
             install_result2 = \
-                main.ONOSbench.onos_install( node=ONOS7_ip )
+                main.ONOSbench.onos_install(node=ONOS7_ip)
 
-            main.log.info( "Starting ONOS CLI" )
-            main.ONOS6cli.start_onos_cli( ONOS6_ip )
-            main.ONOS7cli.start_onos_cli( ONOS7_ip )
+            main.log.info("Starting ONOS CLI")
+            main.ONOS6cli.start_onos_cli(ONOS6_ip)
+            main.ONOS7cli.start_onos_cli(ONOS7_ip)
 
             install_result = install_result1 and install_result2
 
-        time.sleep( 5 )
+        time.sleep(5)
 
         if install_result == main.TRUE:
             assertion = main.TRUE
         else:
             assertion = main.FALSE
 
-        utilities.assert_equals(
-            expect=main.TRUE,
-            actual=assertion,
-            onpass="Scale out to " +
-            str( cluster_count ) +
-            " nodes successful",
-            onfail="Scale out to " +
-            str( cluster_count ) +
-            " nodes failed" )
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+            onpass="Scale out to "+str(cluster_count)+\
+                   " nodes successful",
+            onfail="Scale out to "+str(cluster_count)+\
+                   " nodes failed")
+    
+    def CASE7(self, main):
+        #TODO: Fix for scale-out scenario
 
-    def CASE9( self, main ):
+        '''
+        Batch intent reroute latency
+        '''
+        import time
+        import json
+        import requests
+        import os
+        import numpy
+        global cluster_count
+
+        ONOS_ip_list = []
+        for i in range(1, 8):
+            ONOS_ip_list.append(main.params['CTRL']['ip'+str(i)])
+
+        ONOS_user = main.params['CTRL']['user']
+        default_sw_port = main.params['CTRL']['port1']
+    
+        batch_intent_size = main.params['TEST']['batchIntentSize']
+        batch_thresh_min = int(main.params['TEST']['batchThresholdMin'])
+        batch_thresh_max = int(main.params['TEST']['batchThresholdMax'])
+        intfs = main.params['TEST']['intfs']
+        install_time = main.params['JSON']['installedTime']
+
+        #number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        num_ignore = int(main.params['TEST']['numIgnore'])
+        num_switch = int(main.params['TEST']['numSwitch'])
+        n_thread = main.params['TEST']['numMult']
+
+        main.log.report("Batch intent installation test of "+
+               batch_intent_size +" intents")
+
+        batch_result_list = []
+
+        time.sleep(10)
+
+        main.log.info("Getting list of available devices")
+        device_id_list = []
+        json_str = main.ONOS1cli.devices()
+        json_obj = json.loads(json_str)
+        for device in json_obj:
+            device_id_list.append(device['id'])
+
+        batch_install_lat = []
+        batch_withdraw_lat = []
+        sleep_time = 10
+        
+        base_dir = "/tmp/"
+        max_install_lat = []
+
+        for i in range(0, int(num_iter)):
+            main.log.info("Pushing "+
+                    str(int(batch_intent_size)*int(n_thread))+
+                    " intents. Iteration "+str(i))
+
+            main.ONOSbench.push_test_intents_shell(
+                device_id_list[0]+"/2",
+                device_id_list[7]+"/2",
+                batch_intent_size, "/tmp/batch_install.txt",
+                ONOS_ip_list[0], num_mult="1", app_id="1",
+                report=False, options="--install")
+            #main.ONOSbench.push_test_intents_shell(
+            #    "of:0000000000001002/1",
+            #    "of:0000000000002002/1",
+            #    133, "/tmp/temp2.txt", "10.128.174.2",
+            #    num_mult="6", app_id="2",report=False)
+               
+            #TODO: Check for installation success then proceed
+            time.sleep(30)
+            
+            #NOTE: this interface is specific to
+            #      topo-intentFlower.py topology
+            #      reroute case.
+            main.log.info("Disabling interface "+intfs)
+            main.Mininet1.handle.sendline(
+                    "sh ifconfig "+intfs+" down")
+            t0_system = time.time()*1000
+
+            #TODO: Wait sufficient time for intents to install
+            time.sleep(10)
+
+            #TODO: get intent installation time
+            
+            #Obtain metrics from ONOS 1, 2, 3
+            intents_json_str_1 = main.ONOS1cli.intents_events_metrics()
+            intents_json_obj_1 = json.loads(intents_json_str_1)
+            #Parse values from the json object
+            intent_install_1 = \
+                    intents_json_obj_1[install_time]['value']
+            intent_reroute_lat_1 = \
+                    int(intent_install_1) - int(t0_system)
+            
+            
+            if cluster_count == 3: 
+                intents_json_str_2 =\
+                    main.ONOS2cli.intents_events_metrics()
+                intents_json_str_3 =\
+                    main.ONOS3cli.intents_events_metrics()
+                intents_json_obj_2 = json.loads(intents_json_str_2)
+                intents_json_obj_3 = json.loads(intents_json_str_3)
+                intent_install_2 = \
+                    intents_json_obj_2[install_time]['value']
+                intent_install_3 = \
+                    intents_json_obj_3[install_time]['value']
+                intent_reroute_lat_2 = \
+                    int(intent_install_2) - int(t0_system)
+                intent_reroute_lat_3 = \
+                    int(intent_install_3) - int(t0_system)
+            else:
+                intent_reroute_lat_2 = 0
+                intent_reroute_lat_3 = 0
+
+            if cluster_count == 5:
+                intents_json_str_4 =\
+                    main.ONOS4cli.intents_events_metrics()
+                intents_json_str_5 =\
+                    main.ONOS5cli.intents_events_metrics()
+                intents_json_obj_4 = json.loads(intents_json_str_4)
+                intents_json_obj_5 = json.loads(intents_json_str_5)
+                intent_install_4 = \
+                    intents_json_obj_4[install_time]['value']
+                intent_install_5 = \
+                    intents_json_obj_5[install_time]['value']
+                intent_reroute_lat_4 = \
+                    int(intent_install_4) - int(t0_system)
+                intent_reroute_lat_5 = \
+                    int(intent_install_5) - int(t0_system)
+            else:
+                intent_reroute_lat_4 = 0
+                intent_reroute_lat_5 = 0
+
+            if cluster_count == 7:
+                intents_json_str_6 =\
+                    main.ONOS6cli.intents_events_metrics()
+                intents_json_str_7 =\
+                    main.ONOS7cli.intents_events_metrics()
+                intents_json_obj_6 = json.loads(intents_json_str_6)
+                intents_json_obj_7 = json.loads(intents_json_str_7)
+                intent_install_6 = \
+                    intents_json_obj_6[install_time]['value']
+                intent_install_7 = \
+                    intents_json_obj_7[install_time]['value']
+                intent_reroute_lat_6 = \
+                    int(intent_install_6) - int(t0_system)
+                intent_reroute_lat_7 = \
+                    int(intent_install_7) - int(t0_system)
+            else:
+                intent_reroute_lat_6 = 0
+                intent_reroute_lat_7 = 0
+
+            intent_reroute_lat_avg = \
+                    (intent_reroute_lat_1 + 
+                     intent_reroute_lat_2 +
+                     intent_reroute_lat_3 +
+                     intent_reroute_lat_4 + 
+                     intent_reroute_lat_5 +
+                     intent_reroute_lat_6 +
+                     intent_reroute_lat_7) / cluster_count 
+    
+            main.log.info("Intent reroute latency avg for iteration "+
+                    str(i)+": "+str(intent_reroute_lat_avg))
+            #TODO: Remove intents for next iteration
+            
+            time.sleep(5)
+
+            intents_str = main.ONOS1cli.intents()
+            intents_json = json.loads(intents_str)
+            for intents in intents_json:
+                intent_id = intents['id']
+                #TODO: make sure this removes all intents
+                #print intent_id
+                if intent_id:
+                    main.ONOS1cli.remove_intent(intent_id)
+
+            main.Mininet1.handle.sendline(
+                    "sh ifconfig "+intfs+" up")
+            
+            main.log.info("Intents removed and port back up")
+
+    def CASE9(self, main):
         count = 0
-        sw_num1 = 1
+        sw_num1 = 1 
         sw_num2 = 1
         appid = 0
         port_num1 = 1
         port_num2 = 1
-
-        time.sleep( 30 )
+       
+        time.sleep(30)
 
         while True:
-            # main.ONOS1cli.push_test_intents(
+            #main.ONOS1cli.push_test_intents(
                     #"of:0000000000001001/1",
                 #"of:0000000000002001/1",
-                #    100, num_mult="10", app_id="1" )
-            # main.ONOS2cli.push_test_intents(
+                #    100, num_mult="10", app_id="1")
+            #main.ONOS2cli.push_test_intents(
             #    "of:0000000000001002/1",
             #    "of:0000000000002002/1",
-            #    100, num_mult="10", app_id="2" )
-            # main.ONOS2cli.push_test_intents(
+            #    100, num_mult="10", app_id="2")
+            #main.ONOS2cli.push_test_intents(
             #    "of:0000000000001003/1",
             #    "of:0000000000002003/1",
-            #    100, num_mult="10", app_id="3" )
+            #    100, num_mult="10", app_id="3")
             count += 1
-
+           
             if count >= 100:
                 main.ONOSbench.handle.sendline(
-                    "onos 10.128.174.1 intents-events-metrics >>" +
-                    " /tmp/metrics_intents_temp.txt &" )
+                    "onos 10.128.174.1 intents-events-metrics >>"+\
+                    " /tmp/metrics_intents_temp.txt &")
                 count = 0
 
-            arg1 = "of:000000000000100" + \
-                str( sw_num1 ) + "/" + str( port_num1 )
-            arg2 = "of:000000000000200" + \
-                str( sw_num2 ) + "/" + str( port_num2 )
-
+            arg1 = "of:000000000000100"+str(sw_num1)+"/"+str(port_num1)
+            arg2 = "of:000000000000200"+str(sw_num2)+"/"+str(port_num2)
+            
             sw_num1 += 1
 
             if sw_num1 > 7:
@@ -837,21 +1094,22 @@
 
             if sw_num2 > 7:
                 sw_num2 = 1
-
+            
             main.ONOSbench.push_test_intents_shell(
                 arg1,
-                arg2,
+                arg2, 
                 100, "/tmp/temp.txt", "10.128.174.1",
-                num_mult="10", app_id=appid, report=False )
-            # main.ONOSbench.push_test_intents_shell(
+                num_mult="10", app_id=appid,report=False)
+            #main.ONOSbench.push_test_intents_shell(
             #    "of:0000000000001002/1",
             #    "of:0000000000002002/1",
             #    133, "/tmp/temp2.txt", "10.128.174.2",
-            #    num_mult="6", app_id="2",report=False )
-            # main.ONOSbench.push_test_intents_shell(
+            #    num_mult="6", app_id="2",report=False)
+            #main.ONOSbench.push_test_intents_shell(
             #    "of:0000000000001003/1",
             #    "of:0000000000002003/1",
             #    133, "/tmp/temp3.txt", "10.128.174.3",
-            #    num_mult="6", app_id="3",report=False )
+            #    num_mult="6", app_id="3",report=False)
+   
+            time.sleep(0.2)
 
-            time.sleep( 0.2 )
diff --git a/TestON/tests/IntentPerfNext/IntentPerfNext.topo b/TestON/tests/IntentPerfNext/IntentPerfNext.topo
index 048695d..9de0291 100644
--- a/TestON/tests/IntentPerfNext/IntentPerfNext.topo
+++ b/TestON/tests/IntentPerfNext/IntentPerfNext.topo
@@ -89,7 +89,7 @@
             <type>MininetCliDriver</type>
             <connect_order>4</connect_order>
             <COMPONENTS>
-                <arg1> --custom topo-intentFlower.py </arg1>
+                <arg1> --custom topo-intent-8sw.py </arg1>
                 <arg2> --arp --mac --topo mytopo </arg2>
                 <arg3> </arg3>
                 <controller> remote </controller>
diff --git a/TestON/tests/ProdFunc/ProdFunc.params b/TestON/tests/ProdFunc/ProdFunc.params
index 1189301..2d1f421 100755
--- a/TestON/tests/ProdFunc/ProdFunc.params
+++ b/TestON/tests/ProdFunc/ProdFunc.params
@@ -1,6 +1,6 @@
 <PARAMS>
     
-    <testcases>1,4,10,5,6,7,8,9,2,8,20,21,22,10,23,24</testcases>
+    <testcases>1,4,9</testcases>
     #Environment variables
     <ENV>
         <cellName>driver_test</cellName>
diff --git a/TestON/tests/ProdFunc/ProdFunc.py b/TestON/tests/ProdFunc/ProdFunc.py
index 40d43ae..3a28e2b 100755
--- a/TestON/tests/ProdFunc/ProdFunc.py
+++ b/TestON/tests/ProdFunc/ProdFunc.py
@@ -1136,13 +1136,13 @@
         main.log.report( "__________________________________" )
         main.log.info( "Adding point intents" )
         main.case(
-            "Adding bidirectional point for mn hosts \
-            ( h8-h18, h9-h19, h10-h20, h11-h21, h12-h22,\
-                h13-h23, h14-h24, h15-h25, h16-h26, h17-h27 )" )
-        
-        var1 = "Add point intents for mn hosts h8 and h18 or \
-                ONOS hosts h8 and h12"
-        main.step(var1)
+            '''Adding bidirectional point for mn hosts
+            ( h8-h18, h9-h19, h10-h20, h11-h21, h12-h22,
+                h13-h23, h14-h24, h15-h25, h16-h26, h17-h27 )''' )
+
+        main.step( "Add point intents for mn hosts h8 and h18 or \
+                ONOS hosts h8 and h12" )
+        # main.step(var1)
         ptpIntentResult = main.ONOS2.addPointIntent(
             "of:0000000000003008/1",
             "of:0000000000006018/1" )
diff --git a/TestON/tests/TopoPerfNext/Backup/TopoPerfNext.py b/TestON/tests/TopoPerfNext/Backup/TopoPerfNext.py
new file mode 100644
index 0000000..cc40b94
--- /dev/null
+++ b/TestON/tests/TopoPerfNext/Backup/TopoPerfNext.py
@@ -0,0 +1,1710 @@
+#TopoPerfNext
+#
+#Topology Performance test for ONOS-next
+#
+#andrew@onlab.us
+#
+#If your machine does not come with numpy
+#run the following command:
+#sudo apt-get install python-numpy python-scipy 
+
+import time
+import sys
+import os
+import re
+
+class TopoPerfNext:
+    def __init__(self):
+        self.default = ''
+
+    def CASE1(self, main):
+        '''
+        ONOS startup sequence
+        '''
+        import time
+        
+        ## Global cluster count for scale-out purposes
+        global cluster_count
+        #Set initial cluster count
+        cluster_count = 1 
+        ##
+
+        cell_name = main.params['ENV']['cellName']
+
+        git_pull = main.params['GIT']['autoPull']
+        checkout_branch = main.params['GIT']['checkout']
+
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        
+        #### Hardcoded ONOS nodes particular to my env ####
+        ONOS4_ip = "10.128.174.4"
+        ONOS5_ip = "10.128.174.5"
+        ONOS6_ip = "10.128.174.6"
+        ONOS7_ip = "10.128.174.7"
+        #### ####
+
+        MN1_ip = main.params['MN']['ip1']
+        BENCH_ip = main.params['BENCH']['ip']
+
+        topo_cfg_file = main.params['TEST']['topo_config_file']
+        topo_cfg_name = main.params['TEST']['topo_config_name']
+        
+        main.case("Setting up test environment")
+        main.log.info("Copying topology event accumulator config"+\
+            " to ONOS /package/etc")
+        main.ONOSbench.handle.sendline("cp ~/"+\
+            topo_cfg_file+\
+            " ~/ONOS/tools/package/etc/"+\
+            topo_cfg_name)
+        main.ONOSbench.handle.expect("\$")
+
+        main.log.report("Setting up test environment")
+
+        main.step("Cleaning previously installed ONOS if any")
+        main.ONOSbench.onos_uninstall(node_ip=ONOS2_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS3_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS4_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS5_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS6_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS7_ip)
+
+        main.step("Creating cell file")
+        cell_file_result = main.ONOSbench.create_cell_file(
+                BENCH_ip, cell_name, MN1_ip, "onos-core,onos-app-metrics",
+                ONOS1_ip)
+
+        main.step("Applying cell file to environment")
+        cell_apply_result = main.ONOSbench.set_cell(cell_name)
+        verify_cell_result = main.ONOSbench.verify_cell()
+        
+        #NOTE: This step may be removed after proper 
+        #      copy cat log functionality
+        main.step("Removing raft/copy-cat logs from ONOS nodes")
+        main.ONOSbench.onos_remove_raft_logs()
+        time.sleep(30)
+
+        main.step("Git checkout and pull "+checkout_branch)
+        if git_pull == 'on':
+            checkout_result = \
+                    main.ONOSbench.git_checkout(checkout_branch)
+            pull_result = main.ONOSbench.git_pull()
+        else:
+            checkout_result = main.TRUE
+            pull_result = main.TRUE
+            main.log.info("Skipped git checkout and pull")
+
+        main.log.report("Commit information - ")
+        main.ONOSbench.get_version(report=True)
+
+        main.step("Using mvn clean & install")
+        mvn_result = main.ONOSbench.clean_install()
+        mvn_result = main.TRUE
+
+        main.step("Set cell for ONOS cli env")
+        main.ONOS1cli.set_cell(cell_name)
+        #main.ONOS2cli.set_cell(cell_name)
+        #main.ONOS3cli.set_cell(cell_name)
+
+        main.step("Creating ONOS package")
+        package_result = main.ONOSbench.onos_package()
+
+        main.step("Installing ONOS package")
+        install1_result = main.ONOSbench.onos_install(node=ONOS1_ip)
+        #install2_result = main.ONOSbench.onos_install(node=ONOS2_ip)
+        #install3_result = main.ONOSbench.onos_install(node=ONOS3_ip)
+
+        time.sleep(10)
+
+        main.step("Start onos cli")
+        cli1 = main.ONOS1cli.start_onos_cli(ONOS1_ip)
+        #cli2 = main.ONOS2cli.start_onos_cli(ONOS2_ip)
+        #cli3 = main.ONOS3cli.start_onos_cli(ONOS3_ip)
+
+        utilities.assert_equals(expect=main.TRUE,
+                actual= cell_file_result and cell_apply_result and\
+                        verify_cell_result and checkout_result and\
+                        pull_result and mvn_result and\
+                        install1_result, #and install2_result and\
+                        #install3_result,
+                onpass="Test Environment setup successful",
+                onfail="Failed to setup test environment")
+
+    def CASE2(self, main):
+        '''
+        Assign s1 to ONOS1 and measure latency
+        
+        There are 4 levels of latency measurements to this test:
+        1) End-to-end measurement: Complete end-to-end measurement
+           from TCP (SYN/ACK) handshake to Graph change
+        2) OFP-to-graph measurement: 'ONOS processing' snippet of
+           measurement from OFP Vendor message to Graph change
+        3) OFP-to-device measurement: 'ONOS processing without 
+           graph change' snippet of measurement from OFP vendor
+           message to Device change timestamp
+        4) T0-to-device measurement: Measurement that includes
+           the switch handshake to devices timestamp without 
+           the graph view change. (TCP handshake -> Device 
+           change)
+        '''
+        import time
+        import subprocess
+        import json
+        import requests
+        import os
+        import numpy
+        global cluster_count
+
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
+
+        ONOS_user = main.params['CTRL']['user']
+
+        default_sw_port = main.params['CTRL']['port1']
+       
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        #Number of first 'x' iterations to ignore:
+        iter_ignore = int(main.params['TEST']['iterIgnore'])
+
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+
+        debug_mode = main.params['TEST']['debugMode']
+        onos_log = main.params['TEST']['onosLogFile']
+
+        #Threshold for the test
+        threshold_str = main.params['TEST']['singleSwThreshold']
+        threshold_obj = threshold_str.split(",")
+        threshold_min = int(threshold_obj[0])
+        threshold_max = int(threshold_obj[1])
+
+        #List of switch add latency collected from
+        #all iterations
+        latency_end_to_end_list = []
+        latency_ofp_to_graph_list = []
+        latency_ofp_to_device_list = []
+        latency_t0_to_device_list = []
+        latency_tcp_to_ofp_list = []
+
+        #Directory/file to store tshark results
+        tshark_of_output = "/tmp/tshark_of_topo.txt"
+        tshark_tcp_output = "/tmp/tshark_tcp_topo.txt"
+
+        #String to grep in tshark output
+        tshark_tcp_string = "TCP 74 "+default_sw_port
+        tshark_of_string = "OFP 86 Vendor"
+     
+        #Initialize assertion to TRUE
+        assertion = main.TRUE
+      
+        local_time = time.strftime('%x %X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
+        if debug_mode == 'on':
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/single_sw_lat_pcap_"+local_time) 
+
+            main.log.info("Debug mode is on")
+
+        main.log.report("Latency of adding one switch to controller")
+        main.log.report("First "+str(iter_ignore)+" iterations ignored"+
+                " for jvm warmup time")
+        main.log.report("Total iterations of test: "+str(num_iter))
+
+        for i in range(0, int(num_iter)):
+            main.log.info("Starting tshark capture")
+
+            #* TCP [ACK, SYN] is used as t0_a, the
+            #  very first "exchange" between ONOS and 
+            #  the switch for end-to-end measurement
+            #* OFP [Stats Reply] is used for t0_b
+            #  the very last OFP message between ONOS
+            #  and the switch for ONOS measurement
+            main.ONOS1.tshark_grep(tshark_tcp_string,
+                    tshark_tcp_output)
+            main.ONOS1.tshark_grep(tshark_of_string,
+                    tshark_of_output)
+
+            #Wait and ensure tshark is started and 
+            #capturing
+            time.sleep(10)
+
+            main.log.info("Assigning s1 to controller")
+
+            main.Mininet1.assign_sw_controller(sw="1",
+                    ip1=ONOS1_ip, port1=default_sw_port)
+
+            #Wait and ensure switch is assigned
+            #before stopping tshark
+            time.sleep(30)
+   
+            main.log.info("Stopping all Tshark processes")
+            main.ONOS1.stop_tshark()
+
+            #tshark output is saved in ONOS. Use subprocess
+            #to copy over files to TestON for parsing
+            main.log.info("Copying over tshark files")
+            
+            #TCP CAPTURE ****
+            #Copy the tshark output from ONOS machine to
+            #TestON machine in tshark_tcp_output directory>file
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_tcp_output+" /tmp/") 
+            tcp_file = open(tshark_tcp_output, 'r')
+            temp_text = tcp_file.readline()
+            temp_text = temp_text.split(" ")
+
+            main.log.info("Object read in from TCP capture: "+
+                    str(temp_text))
+            if len(temp_text) > 1:
+                t0_tcp = float(temp_text[1])*1000.0
+            else:
+                main.log.error("Tshark output file for TCP"+
+                        " returned unexpected results")
+                t0_tcp = 0
+                assertion = main.FALSE
+            
+            tcp_file.close()
+            #****************
+
+            #OF CAPTURE ****
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_of_output+" /tmp/")
+            of_file = open(tshark_of_output, 'r')
+           
+            line_ofp = ""
+            #Read until last line of file
+            while True:
+                temp_text = of_file.readline()
+                if temp_text !='':
+                    line_ofp = temp_text
+                else:
+                    break 
+            obj = line_ofp.split(" ")
+            
+            main.log.info("Object read in from OFP capture: "+
+                    str(line_ofp))
+    
+            if len(line_ofp) > 1:
+                t0_ofp = float(obj[1])*1000.0
+            else:
+                main.log.error("Tshark output file for OFP"+
+                        " returned unexpected results")
+                t0_ofp = 0
+                assertion = main.FALSE
+            
+            of_file.close()
+            #****************
+           
+            json_str_1 = main.ONOS1cli.topology_events_metrics()
+            #Initialize scale-out variables 
+            json_str_2 = "" 
+            json_str_3 = ""
+            json_str_4 = ""
+            json_str_5 = ""
+            json_str_6 = ""
+            json_str_7 = ""
+
+            json_obj_1 = json.loads(json_str_1)
+            json_obj_2 = json.loads(json_str_2)
+            json_obj_3 = json.loads(json_str_3)
+            #Initialize scale-out variables
+            json_obj_4 = ""
+            json_obj_5 = ""
+            json_obj_6 = ""
+            json_obj_7 = ""
+
+            #Include scale-out measurements when applicable
+            if cluster_count == 5:
+                json_str_4 = main.ONOS4cli.topology_events_metrics()
+                json_str_5 = main.ONOS5cli.topology_events_metrics()
+                
+                json_obj_4 = json.loads(json_str_4)
+                json_obj_5 = json.loads(json_str_5)
+            elif cluster_count == 6:
+                main.log.info("TODO: create even number cluster events")
+            elif cluster_count == 7:
+                json_str_6 = main.ONOS6cli.topology_events_metrics()
+                json_str_7 = main.ONOS7cli.topology_events_metrics()
+
+                json_obj_6 = json.loads(json_str_6)
+                json_obj_7 = json.loads(json_str_7)
+
+            #Obtain graph timestamp. This timestsamp captures
+            #the epoch time at which the topology graph was updated.
+            graph_timestamp_1 = \
+                    json_obj_1[graphTimestamp]['value']
+            graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+            graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+
+            #Obtain device timestamp. This timestamp captures
+            #the epoch time at which the device event happened
+            device_timestamp_1 = \
+                    json_obj_1[deviceTimestamp]['value'] 
+            device_timestamp_2 = \
+                    json_obj_2[deviceTimestamp]['value'] 
+            device_timestamp_3 = \
+                    json_obj_3[deviceTimestamp]['value'] 
+
+            #t0 to device processing latency 
+            delta_device_1 = int(device_timestamp_1) - int(t0_tcp)
+            delta_device_2 = int(device_timestamp_2) - int(t0_tcp)
+            delta_device_3 = int(device_timestamp_3) - int(t0_tcp)
+        
+            #Get average of delta from all instances
+            avg_delta_device = \
+                    (int(delta_device_1)+\
+                     int(delta_device_2)+\
+                     int(delta_device_3)) / 3
+
+            #Ensure avg delta meets the threshold before appending
+            if avg_delta_device > 0.0 and avg_delta_device < 10000\
+                    and int(i) > iter_ignore:
+                latency_t0_to_device_list.append(avg_delta_device)
+            else:
+                main.log.info("Results for t0-to-device ignored"+\
+                        "due to excess in threshold / warmup iteration.")
+
+            #t0 to graph processing latency (end-to-end)
+            delta_graph_1 = int(graph_timestamp_1) - int(t0_tcp)
+            delta_graph_2 = int(graph_timestamp_2) - int(t0_tcp)
+            delta_graph_3 = int(graph_timestamp_3) - int(t0_tcp)
+        
+            #Get average of delta from all instances
+            #TODO: use max delta graph
+            #max_delta_graph = max(three)
+            avg_delta_graph = \
+                    (int(delta_graph_1)+\
+                     int(delta_graph_2)+\
+                     int(delta_graph_3)) / 3
+
+            #Ensure avg delta meets the threshold before appending
+            if avg_delta_graph > 0.0 and avg_delta_graph < 10000\
+                    and int(i) > iter_ignore:
+                latency_end_to_end_list.append(avg_delta_graph)
+            else:
+                main.log.info("Results for end-to-end ignored"+\
+                        "due to excess in threshold")
+
+            #ofp to graph processing latency (ONOS processing)
+            delta_ofp_graph_1 = int(graph_timestamp_1) - int(t0_ofp)
+            delta_ofp_graph_2 = int(graph_timestamp_2) - int(t0_ofp)
+            delta_ofp_graph_3 = int(graph_timestamp_3) - int(t0_ofp)
+            
+            avg_delta_ofp_graph = \
+                    (int(delta_ofp_graph_1)+\
+                     int(delta_ofp_graph_2)+\
+                     int(delta_ofp_graph_3)) / 3
+            
+            if avg_delta_ofp_graph > threshold_min \
+                    and avg_delta_ofp_graph < threshold_max\
+                    and int(i) > iter_ignore:
+                latency_ofp_to_graph_list.append(avg_delta_ofp_graph)
+            elif avg_delta_ofp_graph > (-10) and \
+                    avg_delta_ofp_graph < 0.0 and\
+                    int(i) > iter_ignore:
+                main.log.info("Sub-millisecond result likely; "+
+                    "negative result was rounded to 0")
+                #NOTE: Current metrics framework does not 
+                #support sub-millisecond accuracy. Therefore,
+                #if the result is negative, we can reasonably
+                #conclude sub-millisecond results and just 
+                #append the best rounded effort - 0 ms. 
+                latency_ofp_to_graph_list.append(0)
+            else:
+                main.log.info("Results for ofp-to-graph "+\
+                        "ignored due to excess in threshold")
+
+            #ofp to device processing latency (ONOS processing)
+            delta_ofp_device_1 = float(device_timestamp_1) - float(t0_ofp)
+            delta_ofp_device_2 = float(device_timestamp_2) - float(t0_ofp)
+            delta_ofp_device_3 = float(device_timestamp_3) - float(t0_ofp)
+            
+            avg_delta_ofp_device = \
+                    (float(delta_ofp_device_1)+\
+                     float(delta_ofp_device_2)+\
+                     float(delta_ofp_device_3)) / 3
+            
+            #NOTE: ofp - delta measurements are occasionally negative
+            #      due to system time misalignment.
+            latency_ofp_to_device_list.append(avg_delta_ofp_device)
+
+            delta_ofp_tcp = int(t0_ofp) - int(t0_tcp)
+            if delta_ofp_tcp > threshold_min \
+                    and delta_ofp_tcp < threshold_max and\
+                    int(i) > iter_ignore:
+                latency_tcp_to_ofp_list.append(delta_ofp_tcp)
+            else:
+                main.log.info("Results fo tcp-to-ofp "+\
+                        "ignored due to excess in threshold")
+
+            #TODO:
+            #Fetch logs upon threshold excess
+
+            main.log.info("ONOS1 delta end-to-end: "+
+                    str(delta_graph_1) + " ms")
+            main.log.info("ONOS2 delta end-to-end: "+
+                    str(delta_graph_2) + " ms")
+            main.log.info("ONOS3 delta end-to-end: "+
+                    str(delta_graph_3) + " ms")
+
+            main.log.info("ONOS1 delta OFP - graph: "+
+                    str(delta_ofp_graph_1) + " ms")
+            main.log.info("ONOS2 delta OFP - graph: "+
+                    str(delta_ofp_graph_2) + " ms")
+            main.log.info("ONOS3 delta OFP - graph: "+
+                    str(delta_ofp_graph_3) + " ms")
+            
+            main.log.info("ONOS1 delta device - t0: "+
+                    str(delta_device_1) + " ms")
+            main.log.info("ONOS2 delta device - t0: "+
+                    str(delta_device_2) + " ms")
+            main.log.info("ONOS3 delta device - t0: "+
+                    str(delta_device_3) + " ms")
+         
+            main.log.info("TCP to OFP delta: "+
+                    str(delta_ofp_tcp) + " ms")
+            #main.log.info("ONOS1 delta OFP - device: "+
+            #        str(delta_ofp_device_1) + " ms")
+            #main.log.info("ONOS2 delta OFP - device: "+
+            #        str(delta_ofp_device_2) + " ms")
+            #main.log.info("ONOS3 delta OFP - device: "+
+            #        str(delta_ofp_device_3) + " ms")
+
+            main.step("Remove switch from controller")
+            main.Mininet1.delete_sw_controller("s1")
+
+            time.sleep(5)
+
+        #END of for loop iteration
+
+        #If there is at least 1 element in each list,
+        #pass the test case
+        if len(latency_end_to_end_list) > 0 and\
+           len(latency_ofp_to_graph_list) > 0 and\
+           len(latency_ofp_to_device_list) > 0 and\
+           len(latency_t0_to_device_list) > 0 and\
+           len(latency_tcp_to_ofp_list) > 0:
+            assertion = main.TRUE
+        elif len(latency_end_to_end_list) == 0:
+            #The appending of 0 here is to prevent 
+            #the min,max,sum functions from failing 
+            #below
+            latency_end_to_end_list.append(0)
+            assertion = main.FALSE
+        elif len(latency_ofp_to_graph_list) == 0:
+            latency_ofp_to_graph_list.append(0)
+            assertion = main.FALSE
+        elif len(latency_ofp_to_device_list) == 0:
+            latency_ofp_to_device_list.append(0)
+            assertion = main.FALSE
+        elif len(latency_t0_to_device_list) == 0:
+            latency_t0_to_device_list.append(0)
+            assertion = main.FALSE
+        elif len(latency_tcp_to_ofp_list) == 0:
+            latency_tcp_to_ofp_list.append(0)
+            assertion = main.FALSE
+
+        #Calculate min, max, avg of latency lists
+        latency_end_to_end_max = \
+                int(max(latency_end_to_end_list))
+        latency_end_to_end_min = \
+                int(min(latency_end_to_end_list))
+        latency_end_to_end_avg = \
+                (int(sum(latency_end_to_end_list)) / \
+                 len(latency_end_to_end_list))
+        latency_end_to_end_std_dev = \
+                str(round(numpy.std(latency_end_to_end_list),1))
+
+        latency_ofp_to_graph_max = \
+                int(max(latency_ofp_to_graph_list))
+        latency_ofp_to_graph_min = \
+                int(min(latency_ofp_to_graph_list))
+        latency_ofp_to_graph_avg = \
+                (int(sum(latency_ofp_to_graph_list)) / \
+                 len(latency_ofp_to_graph_list))
+        latency_ofp_to_graph_std_dev = \
+                str(round(numpy.std(latency_ofp_to_graph_list),1))
+
+        latency_ofp_to_device_max = \
+                int(max(latency_ofp_to_device_list))
+        latency_ofp_to_device_min = \
+                int(min(latency_ofp_to_device_list))
+        latency_ofp_to_device_avg = \
+                (int(sum(latency_ofp_to_device_list)) / \
+                 len(latency_ofp_to_device_list))
+        latency_ofp_to_device_std_dev = \
+                str(round(numpy.std(latency_ofp_to_device_list),1))
+
+        latency_t0_to_device_max = \
+                int(max(latency_t0_to_device_list))
+        latency_t0_to_device_min = \
+                int(min(latency_t0_to_device_list))
+        latency_t0_to_device_avg = \
+                (int(sum(latency_t0_to_device_list)) / \
+                 len(latency_t0_to_device_list))
+        latency_ofp_to_device_std_dev = \
+                str(round(numpy.std(latency_t0_to_device_list),1))
+
+        latency_tcp_to_ofp_max = \
+                int(max(latency_tcp_to_ofp_list))
+        latency_tcp_to_ofp_min = \
+                int(min(latency_tcp_to_ofp_list))
+        latency_tcp_to_ofp_avg = \
+                (int(sum(latency_tcp_to_ofp_list)) / \
+                 len(latency_tcp_to_ofp_list))
+        latency_tcp_to_ofp_std_dev = \
+                str(round(numpy.std(latency_tcp_to_ofp_list),1))
+
+        main.log.report("Switch add - End-to-end latency: "+\
+                "Avg: "+str(latency_end_to_end_avg)+" ms "+
+                "Std Deviation: "+latency_end_to_end_std_dev+" ms")
+        main.log.report("Switch add - OFP-to-Graph latency: "+\
+                "Note: results are not accurate to sub-millisecond. "+
+                "Any sub-millisecond results are rounded to 0 ms. ")
+        main.log.report("Avg: "+str(latency_ofp_to_graph_avg)+" ms "+
+                "Std Deviation: "+latency_ofp_to_graph_std_dev+" ms")
+        main.log.report("Switch add - TCP-to-OFP latency: "+\
+                "Avg: "+str(latency_tcp_to_ofp_avg)+" ms "+
+                "Std Deviation: "+latency_tcp_to_ofp_std_dev+" ms")
+
+        if debug_mode == 'on':
+            main.ONOS1.cp_logs_to_dir("/opt/onos/log/karaf.log",
+                    "/tmp/", copy_file_name="sw_lat_karaf")
+
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+                onpass="Switch latency test successful",
+                onfail="Switch latency test failed")
+
+    def CASE3(self, main):
+        '''
+        Bring port up / down and measure latency.
+        Port enable / disable is simulated by ifconfig up / down
+        
+        In ONOS-next, we must ensure that the port we are 
+        manipulating is connected to another switch with a valid
+        connection. Otherwise, graph view will not be updated.
+        '''
+        import time
+        import subprocess
+        import os
+        import requests
+        import json
+        import numpy
+
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS_user = main.params['CTRL']['user']
+
+        default_sw_port = main.params['CTRL']['port1']
+      
+        assertion = main.TRUE
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+       
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+        
+        debug_mode = main.params['TEST']['debugMode']
+
+        local_time = time.strftime('%x %X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
+        if debug_mode == 'on':
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/port_lat_pcap_"+local_time) 
+
+        #Threshold for this test case
+        up_threshold_str = main.params['TEST']['portUpThreshold']
+        down_threshold_str = main.params['TEST']['portDownThreshold']
+        
+        up_threshold_obj = up_threshold_str.split(",")
+        down_threshold_obj = down_threshold_str.split(",")
+
+        up_threshold_min = int(up_threshold_obj[0])
+        up_threshold_max = int(up_threshold_obj[1])
+
+        down_threshold_min = int(down_threshold_obj[0])
+        down_threshold_max = int(down_threshold_obj[1])
+
+        #NOTE: Some hardcoded variables you may need to configure
+        #      besides the params
+            
+        tshark_port_status = "OFP 130 Port Status"
+
+        tshark_port_up = "/tmp/tshark_port_up.txt"
+        tshark_port_down = "/tmp/tshark_port_down.txt"
+        interface_config = "s1-eth1"
+
+        main.log.report("Port enable / disable latency")
+        main.log.report("Simulated by ifconfig up / down")
+        main.log.report("Total iterations of test: "+str(num_iter))
+
+        main.step("Assign switches s1 and s2 to controller 1")
+        main.Mininet1.assign_sw_controller(sw="1",ip1=ONOS1_ip,
+                port1=default_sw_port)
+        main.Mininet1.assign_sw_controller(sw="2",ip1=ONOS1_ip,
+                port1=default_sw_port)
+
+        #Give enough time for metrics to propagate the 
+        #assign controller event. Otherwise, these events may
+        #carry over to our measurements
+        time.sleep(15)
+
+        port_up_device_to_ofp_list = []
+        port_up_graph_to_ofp_list = []
+        port_down_device_to_ofp_list = []
+        port_down_graph_to_ofp_list = []
+
+        for i in range(0, int(num_iter)):
+            main.step("Starting wireshark capture for port status down")
+            main.ONOS1.tshark_grep(tshark_port_status,
+                    tshark_port_down)
+            
+            time.sleep(5)
+
+            #Disable interface that is connected to switch 2
+            main.step("Disable port: "+interface_config)
+            main.Mininet1.handle.sendline("sh ifconfig "+
+                    interface_config+" down")
+            main.Mininet1.handle.expect("mininet>")
+
+            time.sleep(3)
+            main.ONOS1.tshark_stop()
+            
+            main.step("Obtain t1 by metrics call")
+            json_str_up_1 = main.ONOS1cli.topology_events_metrics()
+            json_str_up_2 = main.ONOS2cli.topology_events_metrics()
+            json_str_up_3 = main.ONOS3cli.topology_events_metrics()
+
+            json_obj_1 = json.loads(json_str_up_1)
+            json_obj_2 = json.loads(json_str_up_2)
+            json_obj_3 = json.loads(json_str_up_3)
+            
+            #Copy tshark output file from ONOS to TestON instance
+            #/tmp directory
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_port_down+" /tmp/")
+
+            f_port_down = open(tshark_port_down, 'r')
+            #Get first line of port down event from tshark
+            f_line = f_port_down.readline()
+            obj_down = f_line.split(" ")
+            if len(f_line) > 0:
+                timestamp_begin_pt_down = int(float(obj_down[1])*1000)
+                main.log.info("Port down begin timestamp: "+
+                        str(timestamp_begin_pt_down))
+            else:
+                main.log.info("Tshark output file returned unexpected"+
+                        " results: "+str(obj_down))
+                timestamp_begin_pt_down = 0
+            
+            f_port_down.close()
+
+            main.log.info("TEST tshark obj: "+str(obj_down))
+
+            time.sleep(3)
+
+            #Obtain graph timestamp. This timestsamp captures
+            #the epoch time at which the topology graph was updated.
+            graph_timestamp_1 = \
+                    json_obj_1[graphTimestamp]['value']
+            graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+            graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+
+            main.log.info("TEST graph timestamp ONOS1: "+
+                    str(graph_timestamp_1))
+
+            #Obtain device timestamp. This timestamp captures
+            #the epoch time at which the device event happened
+            device_timestamp_1 = \
+                    json_obj_1[deviceTimestamp]['value'] 
+            device_timestamp_2 = \
+                    json_obj_2[deviceTimestamp]['value'] 
+            device_timestamp_3 = \
+                    json_obj_3[deviceTimestamp]['value'] 
+
+            #Get delta between graph event and OFP 
+            pt_down_graph_to_ofp_1 = int(graph_timestamp_1) -\
+                    int(timestamp_begin_pt_down)
+            pt_down_graph_to_ofp_2 = int(graph_timestamp_2) -\
+                    int(timestamp_begin_pt_down)
+            pt_down_graph_to_ofp_3 = int(graph_timestamp_3) -\
+                    int(timestamp_begin_pt_down)
+
+            #Get delta between device event and OFP
+            pt_down_device_to_ofp_1 = int(device_timestamp_1) -\
+                    int(timestamp_begin_pt_down)
+            pt_down_device_to_ofp_2 = int(device_timestamp_2) -\
+                    int(timestamp_begin_pt_down)
+            pt_down_device_to_ofp_3 = int(device_timestamp_3) -\
+                    int(timestamp_begin_pt_down)
+       
+            #Caluclate average across clusters
+            pt_down_graph_to_ofp_avg =\
+                    (int(pt_down_graph_to_ofp_1) +
+                     int(pt_down_graph_to_ofp_2) + 
+                     int(pt_down_graph_to_ofp_3)) / 3
+            pt_down_device_to_ofp_avg = \
+                    (int(pt_down_device_to_ofp_1) + 
+                     int(pt_down_device_to_ofp_2) +
+                     int(pt_down_device_to_ofp_3)) / 3
+
+            if pt_down_graph_to_ofp_avg > down_threshold_min and \
+                    pt_down_graph_to_ofp_avg < down_threshold_max:
+                port_down_graph_to_ofp_list.append(
+                    pt_down_graph_to_ofp_avg)
+                main.log.info("Port down: graph to ofp avg: "+
+                    str(pt_down_graph_to_ofp_avg) + " ms")
+            else:
+                main.log.info("Average port down graph-to-ofp result" +
+                        " exceeded the threshold: "+
+                        str(pt_down_graph_to_ofp_avg))
+
+            if pt_down_device_to_ofp_avg > 0 and \
+                    pt_down_device_to_ofp_avg < 1000:
+                port_down_device_to_ofp_list.append(
+                    pt_down_device_to_ofp_avg)
+                main.log.info("Port down: device to ofp avg: "+
+                    str(pt_down_device_to_ofp_avg) + " ms")
+            else:
+                main.log.info("Average port down device-to-ofp result" +
+                        " exceeded the threshold: "+
+                        str(pt_down_device_to_ofp_avg))
+
+            #Port up events 
+            main.step("Enable port and obtain timestamp")
+            main.step("Starting wireshark capture for port status up")
+            main.ONOS1.tshark_grep(tshark_port_status, tshark_port_up)
+            time.sleep(5)
+
+            main.Mininet1.handle.sendline("sh ifconfig "+
+                    interface_config+" up")
+            main.Mininet1.handle.expect("mininet>")
+            
+            #Allow time for tshark to capture event
+            time.sleep(3)
+            main.ONOS1.tshark_stop()
+
+            #Obtain metrics shortly afterwards
+            #This timestsamp captures
+            #the epoch time at which the topology graph was updated.
+            main.step("Obtain t1 by REST call")
+            json_str_up_1 = main.ONOS1cli.topology_events_metrics()
+            json_str_up_2 = main.ONOS2cli.topology_events_metrics()
+            json_str_up_3 = main.ONOS3cli.topology_events_metrics()
+            
+            json_obj_1 = json.loads(json_str_up_1)
+            json_obj_2 = json.loads(json_str_up_2)
+            json_obj_3 = json.loads(json_str_up_3)
+
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_port_up+" /tmp/")
+
+            f_port_up = open(tshark_port_up, 'r')
+            f_line = f_port_up.readline()
+            obj_up = f_line.split(" ")
+            if len(f_line) > 0:
+                timestamp_begin_pt_up = int(float(obj_up[1])*1000)
+                main.log.info("Port up begin timestamp: "+
+                        str(timestamp_begin_pt_up))
+            else:
+                main.log.info("Tshark output file returned unexpected"+
+                        " results.")
+                timestamp_begin_pt_up = 0
+            
+            f_port_up.close()
+
+            graph_timestamp_1 = \
+                    json_obj_1[graphTimestamp]['value']
+            graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+            graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+
+            #Obtain device timestamp. This timestamp captures
+            #the epoch time at which the device event happened
+            device_timestamp_1 = \
+                    json_obj_1[deviceTimestamp]['value'] 
+            device_timestamp_2 = \
+                    json_obj_2[deviceTimestamp]['value'] 
+            device_timestamp_3 = \
+                    json_obj_3[deviceTimestamp]['value'] 
+
+            #Get delta between graph event and OFP 
+            pt_up_graph_to_ofp_1 = int(graph_timestamp_1) -\
+                    int(timestamp_begin_pt_up)
+            pt_up_graph_to_ofp_2 = int(graph_timestamp_2) -\
+                    int(timestamp_begin_pt_up)
+            pt_up_graph_to_ofp_3 = int(graph_timestamp_3) -\
+                    int(timestamp_begin_pt_up)
+
+            #Get delta between device event and OFP
+            pt_up_device_to_ofp_1 = int(device_timestamp_1) -\
+                    int(timestamp_begin_pt_up)
+            pt_up_device_to_ofp_2 = int(device_timestamp_2) -\
+                    int(timestamp_begin_pt_up)
+            pt_up_device_to_ofp_3 = int(device_timestamp_3) -\
+                    int(timestamp_begin_pt_up)
+
+            main.log.info("ONOS1 delta G2O: "+str(pt_up_graph_to_ofp_1))
+            main.log.info("ONOS2 delta G2O: "+str(pt_up_graph_to_ofp_2))
+            main.log.info("ONOS3 delta G2O: "+str(pt_up_graph_to_ofp_3))
+
+            main.log.info("ONOS1 delta D2O: "+str(pt_up_device_to_ofp_1))
+            main.log.info("ONOS2 delta D2O: "+str(pt_up_device_to_ofp_2)) 
+            main.log.info("ONOS3 delta D2O: "+str(pt_up_device_to_ofp_3)) 
+
+            pt_up_graph_to_ofp_avg = \
+                    (int(pt_up_graph_to_ofp_1) + 
+                     int(pt_up_graph_to_ofp_2) +
+                     int(pt_up_graph_to_ofp_3)) / 3
+
+            pt_up_device_to_ofp_avg = \
+                    (int(pt_up_device_to_ofp_1) + 
+                     int(pt_up_device_to_ofp_2) +
+                     int(pt_up_device_to_ofp_3)) / 3
+
+            if pt_up_graph_to_ofp_avg > up_threshold_min and \
+                    pt_up_graph_to_ofp_avg < up_threshold_max: 
+                port_up_graph_to_ofp_list.append(
+                        pt_up_graph_to_ofp_avg)
+                main.log.info("Port down: graph to ofp avg: "+
+                    str(pt_up_graph_to_ofp_avg) + " ms")
+            else:
+                main.log.info("Average port up graph-to-ofp result"+
+                        " exceeded the threshold: "+
+                        str(pt_up_graph_to_ofp_avg))
+            
+            if pt_up_device_to_ofp_avg > up_threshold_min and \
+                    pt_up_device_to_ofp_avg < up_threshold_max:
+                port_up_device_to_ofp_list.append(
+                        pt_up_device_to_ofp_avg)
+                main.log.info("Port up: device to ofp avg: "+
+                    str(pt_up_device_to_ofp_avg) + " ms")
+            else:
+                main.log.info("Average port up device-to-ofp result"+
+                        " exceeded the threshold: "+
+                        str(pt_up_device_to_ofp_avg))
+            
+            #END ITERATION FOR LOOP
+        
+        #Check all list for latency existence and set assertion
+        if (port_down_graph_to_ofp_list and port_down_device_to_ofp_list\
+           and port_up_graph_to_ofp_list and port_up_device_to_ofp_list):
+            assertion = main.TRUE
+
+        #Calculate and report latency measurements
+        port_down_graph_to_ofp_min = min(port_down_graph_to_ofp_list)
+        port_down_graph_to_ofp_max = max(port_down_graph_to_ofp_list)
+        port_down_graph_to_ofp_avg = \
+                (sum(port_down_graph_to_ofp_list) / 
+                 len(port_down_graph_to_ofp_list))
+        port_down_graph_to_ofp_std_dev = \
+                str(round(numpy.std(port_down_graph_to_ofp_list),1))
+        
+        main.log.report("Port down graph-to-ofp "+
+                "Avg: "+str(port_down_graph_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_down_graph_to_ofp_std_dev+" ms")
+        
+        port_down_device_to_ofp_min = min(port_down_device_to_ofp_list)
+        port_down_device_to_ofp_max = max(port_down_device_to_ofp_list)
+        port_down_device_to_ofp_avg = \
+                (sum(port_down_device_to_ofp_list) /\
+                 len(port_down_device_to_ofp_list))
+        port_down_device_to_ofp_std_dev = \
+                str(round(numpy.std(port_down_device_to_ofp_list),1))
+        
+        main.log.report("Port down device-to-ofp "+
+                "Avg: "+str(port_down_device_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_down_device_to_ofp_std_dev+" ms")
+        
+        port_up_graph_to_ofp_min = min(port_up_graph_to_ofp_list)
+        port_up_graph_to_ofp_max = max(port_up_graph_to_ofp_list)
+        port_up_graph_to_ofp_avg = \
+                (sum(port_up_graph_to_ofp_list) /\
+                 len(port_up_graph_to_ofp_list))
+        port_up_graph_to_ofp_std_dev = \
+                str(round(numpy.std(port_up_graph_to_ofp_list),1))
+        
+        main.log.report("Port up graph-to-ofp "+
+                "Avg: "+str(port_up_graph_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_up_graph_to_ofp_std_dev+" ms")
+          
+        port_up_device_to_ofp_min = min(port_up_device_to_ofp_list)
+        port_up_device_to_ofp_max = max(port_up_device_to_ofp_list)
+        port_up_device_to_ofp_avg = \
+                (sum(port_up_device_to_ofp_list) /\
+                 len(port_up_device_to_ofp_list))
+        port_up_device_to_ofp_std_dev = \
+                str(round(numpy.std(port_up_device_to_ofp_list),1))
+        
+        main.log.report("Port up device-to-ofp "+
+                "Avg: "+str(port_up_device_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_up_device_to_ofp_std_dev+" ms")
+
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+                onpass="Port discovery latency calculation successful",
+                onfail="Port discovery test failed")
+
+    def CASE4(self, main):
+        '''
+        Link down event using loss rate 100%
+        
+        Important:
+            Use a simple 2 switch topology with 1 link between
+            the two switches. Ensure that mac addresses of the 
+            switches are 1 / 2 respectively
+        '''
+        import time
+        import subprocess
+        import os
+        import requests
+        import json
+        import numpy 
+    
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS_user = main.params['CTRL']['user']
+
+        default_sw_port = main.params['CTRL']['port1']
+       
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+       
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        linkTimestamp = main.params['JSON']['linkTimestamp'] 
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+        
+        debug_mode = main.params['TEST']['debugMode']
+
+        local_time = time.strftime('%x %X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
+        if debug_mode == 'on':
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/link_lat_pcap_"+local_time) 
+
+        #Threshold for this test case
+        up_threshold_str = main.params['TEST']['linkUpThreshold']
+        down_threshold_str = main.params['TEST']['linkDownThreshold']
+
+        up_threshold_obj = up_threshold_str.split(",")
+        down_threshold_obj = down_threshold_str.split(",")
+
+        up_threshold_min = int(up_threshold_obj[0])
+        up_threshold_max = int(up_threshold_obj[1])
+
+        down_threshold_min = int(down_threshold_obj[0])
+        down_threshold_max = int(down_threshold_obj[1])
+
+        assertion = main.TRUE
+        #Link event timestamp to system time list
+        link_down_link_to_system_list = []
+        link_up_link_to_system_list = []
+        #Graph event timestamp to system time list
+        link_down_graph_to_system_list = []
+        link_up_graph_to_system_list = [] 
+
+        main.log.report("Link up / down discovery latency between "+
+                "two switches")
+        main.log.report("Simulated by setting loss-rate 100%")
+        main.log.report("'tc qdisc add dev <intfs> root netem loss 100%'") 
+        main.log.report("Total iterations of test: "+str(num_iter))
+
+        main.step("Assign all switches")
+        main.Mininet1.assign_sw_controller(sw="1",
+                ip1=ONOS1_ip, port1=default_sw_port)
+        main.Mininet1.assign_sw_controller(sw="2",
+                ip1=ONOS1_ip, port1=default_sw_port)
+
+        main.step("Verifying switch assignment")
+        result_s1 = main.Mininet1.get_sw_controller(sw="s1")
+        result_s2 = main.Mininet1.get_sw_controller(sw="s2")
+          
+        #Allow time for events to finish before taking measurements
+        time.sleep(10)
+
+        link_down1 = False
+        link_down2 = False
+        link_down3 = False
+        #Start iteration of link event test
+        for i in range(0, int(num_iter)):
+            main.step("Getting initial system time as t0")
+        
+            #System time in epoch ms
+            timestamp_link_down_t0 = time.time() * 1000
+            #Link down is simulated by 100% loss rate using traffic 
+            #control command
+            main.Mininet1.handle.sendline(
+                    "sh tc qdisc add dev s1-eth1 root netem loss 100%")
+
+            #TODO: Iterate through 'links' command to verify that
+            #      link s1 -> s2 went down (loop timeout 30 seconds) 
+            #      on all 3 ONOS instances
+            main.log.info("Checking ONOS for link update")
+            loop_count = 0
+            while( not (link_down1 and link_down2 and link_down3)\
+                    and loop_count < 30 ):
+                json_str1 = main.ONOS1cli.links()
+                json_str2 = main.ONOS2cli.links()
+                json_str3 = main.ONOS3cli.links()
+                
+                if not (json_str1 and json_str2 and json_str3):
+                    main.log.error("CLI command returned error ")
+                    break
+                else:
+                    json_obj1 = json.loads(json_str1)
+                    json_obj2 = json.loads(json_str2)
+                    json_obj3 = json.loads(json_str3)
+                for obj1 in json_obj1:
+                    if '01' not in obj1['src']['device']:
+                        link_down1 = True
+                        main.log.info("Link down from "+
+                                "s1 -> s2 on ONOS1 detected")
+                for obj2 in json_obj2:
+                    if '01' not in obj2['src']['device']:
+                        link_down2 = True
+                        main.log.info("Link down from "+
+                                "s1 -> s2 on ONOS2 detected")
+                for obj3 in json_obj3:
+                    if '01' not in obj3['src']['device']:
+                        link_down3 = True
+                        main.log.info("Link down from "+
+                                "s1 -> s2 on ONOS3 detected")
+                
+                loop_count += 1
+                #If CLI doesn't like the continuous requests
+                #and exits in this loop, increase the sleep here.
+                #Consequently, while loop timeout will increase
+                time.sleep(1)
+    
+            #Give time for metrics measurement to catch up
+            #NOTE: May need to be configured more accurately
+            time.sleep(10)
+            #If we exited the while loop and link down 1,2,3 are still 
+            #false, then ONOS has failed to discover link down event
+            if not (link_down1 and link_down2 and link_down3):
+                main.log.info("Link down discovery failed")
+                
+                link_down_lat_graph1 = 0
+                link_down_lat_graph2 = 0
+                link_down_lat_graph3 = 0
+                link_down_lat_device1 = 0
+                link_down_lat_device2 = 0
+                link_down_lat_device3 = 0
+                
+                assertion = main.FALSE
+            else:
+                json_topo_metrics_1 =\
+                        main.ONOS1cli.topology_events_metrics()
+                json_topo_metrics_2 =\
+                        main.ONOS2cli.topology_events_metrics()
+                json_topo_metrics_3 =\
+                        main.ONOS3cli.topology_events_metrics()
+                json_topo_metrics_1 = json.loads(json_topo_metrics_1)
+                json_topo_metrics_2 = json.loads(json_topo_metrics_2)
+                json_topo_metrics_3 = json.loads(json_topo_metrics_3)
+
+                main.log.info("Obtaining graph and device timestamp")
+                graph_timestamp_1 = \
+                    json_topo_metrics_1[graphTimestamp]['value']
+                graph_timestamp_2 = \
+                    json_topo_metrics_2[graphTimestamp]['value']
+                graph_timestamp_3 = \
+                    json_topo_metrics_3[graphTimestamp]['value']
+
+                link_timestamp_1 = \
+                    json_topo_metrics_1[linkTimestamp]['value']
+                link_timestamp_2 = \
+                    json_topo_metrics_2[linkTimestamp]['value']
+                link_timestamp_3 = \
+                    json_topo_metrics_3[linkTimestamp]['value']
+
+                if graph_timestamp_1 and graph_timestamp_2 and\
+                        graph_timestamp_3 and link_timestamp_1 and\
+                        link_timestamp_2 and link_timestamp_3:
+                    link_down_lat_graph1 = int(graph_timestamp_1) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_graph2 = int(graph_timestamp_2) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_graph3 = int(graph_timestamp_3) -\
+                            int(timestamp_link_down_t0)
+                
+                    link_down_lat_link1 = int(link_timestamp_1) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_link2 = int(link_timestamp_2) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_link3 = int(link_timestamp_3) -\
+                            int(timestamp_link_down_t0)
+                else:
+                    main.log.error("There was an error calculating"+
+                        " the delta for link down event")
+                    link_down_lat_graph1 = 0
+                    link_down_lat_graph2 = 0
+                    link_down_lat_graph3 = 0
+                    
+                    link_down_lat_device1 = 0
+                    link_down_lat_device2 = 0
+                    link_down_lat_device3 = 0
+        
+            main.log.info("Link down latency ONOS1 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_down_lat_graph1)+" ms")
+            main.log.info("Link down latency ONOS2 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_down_lat_graph2)+" ms")
+            main.log.info("Link down latency ONOS3 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_down_lat_graph3)+" ms")
+            
+            main.log.info("Link down latency ONOS1 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_down_lat_link1)+" ms")
+            main.log.info("Link down latency ONOS2 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_down_lat_link2)+" ms")
+            main.log.info("Link down latency ONOS3 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_down_lat_link3))
+      
+            #Calculate avg of node calculations
+            link_down_lat_graph_avg =\
+                    (link_down_lat_graph1 +
+                     link_down_lat_graph2 +
+                     link_down_lat_graph3) / 3
+            link_down_lat_link_avg =\
+                    (link_down_lat_link1 +
+                     link_down_lat_link2 +
+                     link_down_lat_link3) / 3
+
+            #Set threshold and append latency to list
+            if link_down_lat_graph_avg > down_threshold_min and\
+               link_down_lat_graph_avg < down_threshold_max:
+                link_down_graph_to_system_list.append(
+                        link_down_lat_graph_avg)
+            else:
+                main.log.info("Link down latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
+            if link_down_lat_link_avg > down_threshold_min and\
+               link_down_lat_link_avg < down_threshold_max:
+                link_down_link_to_system_list.append(
+                        link_down_lat_link_avg)
+            else:
+                main.log.info("Link down latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
+
+            #NOTE: To remove loss rate and measure latency:
+            #       'sh tc qdisc del dev s1-eth1 root'
+            timestamp_link_up_t0 = time.time() * 1000
+            main.Mininet1.handle.sendline("sh tc qdisc del dev "+
+                    "s1-eth1 root")
+            main.Mininet1.handle.expect("mininet>")
+            
+            main.log.info("Checking ONOS for link update")
+            
+            link_down1 = True
+            link_down2 = True
+            link_down3 = True
+            loop_count = 0
+            while( (link_down1 and link_down2 and link_down3)\
+                    and loop_count < 30 ):
+                json_str1 = main.ONOS1cli.links()
+                json_str2 = main.ONOS2cli.links()
+                json_str3 = main.ONOS3cli.links()
+                if not (json_str1 and json_str2 and json_str3):
+                    main.log.error("CLI command returned error ")
+                    break
+                else:
+                    json_obj1 = json.loads(json_str1)
+                    json_obj2 = json.loads(json_str2)
+                    json_obj3 = json.loads(json_str3)
+                
+                for obj1 in json_obj1:
+                    if '01' in obj1['src']['device']:
+                        link_down1 = False 
+                        main.log.info("Link up from "+
+                            "s1 -> s2 on ONOS1 detected")
+                for obj2 in json_obj2:
+                    if '01' in obj2['src']['device']:
+                        link_down2 = False 
+                        main.log.info("Link up from "+
+                            "s1 -> s2 on ONOS2 detected")
+                for obj3 in json_obj3:
+                    if '01' in obj3['src']['device']:
+                        link_down3 = False 
+                        main.log.info("Link up from "+
+                            "s1 -> s2 on ONOS3 detected")
+                
+                loop_count += 1
+                time.sleep(1)
+            
+            if (link_down1 and link_down2 and link_down3):
+                main.log.info("Link up discovery failed")
+                
+                link_up_lat_graph1 = 0
+                link_up_lat_graph2 = 0
+                link_up_lat_graph3 = 0
+                link_up_lat_device1 = 0
+                link_up_lat_device2 = 0
+                link_up_lat_device3 = 0
+                
+                assertion = main.FALSE
+            else:
+                json_topo_metrics_1 =\
+                        main.ONOS1cli.topology_events_metrics()
+                json_topo_metrics_2 =\
+                        main.ONOS2cli.topology_events_metrics()
+                json_topo_metrics_3 =\
+                        main.ONOS3cli.topology_events_metrics()
+                json_topo_metrics_1 = json.loads(json_topo_metrics_1)
+                json_topo_metrics_2 = json.loads(json_topo_metrics_2)
+                json_topo_metrics_3 = json.loads(json_topo_metrics_3)
+
+                main.log.info("Obtaining graph and device timestamp")
+                graph_timestamp_1 = \
+                    json_topo_metrics_1[graphTimestamp]['value']
+                graph_timestamp_2 = \
+                    json_topo_metrics_2[graphTimestamp]['value']
+                graph_timestamp_3 = \
+                    json_topo_metrics_3[graphTimestamp]['value']
+
+                link_timestamp_1 = \
+                    json_topo_metrics_1[linkTimestamp]['value']
+                link_timestamp_2 = \
+                    json_topo_metrics_2[linkTimestamp]['value']
+                link_timestamp_3 = \
+                    json_topo_metrics_3[linkTimestamp]['value']
+
+                if graph_timestamp_1 and graph_timestamp_2 and\
+                        graph_timestamp_3 and link_timestamp_1 and\
+                        link_timestamp_2 and link_timestamp_3:
+                    link_up_lat_graph1 = int(graph_timestamp_1) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_graph2 = int(graph_timestamp_2) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_graph3 = int(graph_timestamp_3) -\
+                            int(timestamp_link_up_t0)
+                
+                    link_up_lat_link1 = int(link_timestamp_1) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_link2 = int(link_timestamp_2) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_link3 = int(link_timestamp_3) -\
+                            int(timestamp_link_up_t0)
+                else:
+                    main.log.error("There was an error calculating"+
+                        " the delta for link down event")
+                    link_up_lat_graph1 = 0
+                    link_up_lat_graph2 = 0
+                    link_up_lat_graph3 = 0
+                    
+                    link_up_lat_device1 = 0
+                    link_up_lat_device2 = 0
+                    link_up_lat_device3 = 0
+       
+            if debug_mode == 'on':
+                main.log.info("Link up latency ONOS1 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_up_lat_graph1)+" ms")
+                main.log.info("Link up latency ONOS2 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_up_lat_graph2)+" ms")
+                main.log.info("Link up latency ONOS3 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_up_lat_graph3)+" ms")
+            
+                main.log.info("Link up latency ONOS1 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_up_lat_link1)+" ms")
+                main.log.info("Link up latency ONOS2 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_up_lat_link2)+" ms")
+                main.log.info("Link up latency ONOS3 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_up_lat_link3))
+      
+            #Calculate avg of node calculations
+            link_up_lat_graph_avg =\
+                    (link_up_lat_graph1 +
+                     link_up_lat_graph2 +
+                     link_up_lat_graph3) / 3
+            link_up_lat_link_avg =\
+                    (link_up_lat_link1 +
+                     link_up_lat_link2 +
+                     link_up_lat_link3) / 3
+
+            #Set threshold and append latency to list
+            if link_up_lat_graph_avg > up_threshold_min and\
+               link_up_lat_graph_avg < up_threshold_max:
+                link_up_graph_to_system_list.append(
+                        link_up_lat_graph_avg)
+            else:
+                main.log.info("Link up latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
+            if link_up_lat_link_avg > up_threshold_min and\
+               link_up_lat_link_avg < up_threshold_max:
+                link_up_link_to_system_list.append(
+                        link_up_lat_link_avg)
+            else:
+                main.log.info("Link up latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
+
+        #Calculate min, max, avg of list and report
+        link_down_min = min(link_down_graph_to_system_list)
+        link_down_max = max(link_down_graph_to_system_list)
+        link_down_avg = sum(link_down_graph_to_system_list) / \
+                        len(link_down_graph_to_system_list)
+        link_up_min = min(link_up_graph_to_system_list)
+        link_up_max = max(link_up_graph_to_system_list)
+        link_up_avg = sum(link_up_graph_to_system_list) / \
+                        len(link_up_graph_to_system_list)
+        link_down_std_dev = \
+                str(round(numpy.std(link_down_graph_to_system_list),1))
+        link_up_std_dev = \
+                str(round(numpy.std(link_up_graph_to_system_list),1))
+
+        main.log.report("Link down latency " +
+                "Avg: "+str(link_down_avg)+" ms "+
+                "Std Deviation: "+link_down_std_dev+" ms")
+        main.log.report("Link up latency "+
+                "Avg: "+str(link_up_avg)+" ms "+
+                "Std Deviation: "+link_up_std_dev+" ms")
+
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+                onpass="Link discovery latency calculation successful",
+                onfail="Link discovery latency case failed")
+
+    def CASE5(self, main):
+        '''
+        100 Switch discovery latency
+
+        Important:
+            This test case can be potentially dangerous if 
+            your machine has previously set iptables rules.
+            One of the steps of the test case will flush
+            all existing iptables rules.
+        Note:
+            You can specify the number of switches in the 
+            params file to adjust the switch discovery size
+            (and specify the corresponding topology in Mininet1 
+            .topo file)
+        '''
+        import time
+        import subprocess
+        import os
+        import requests
+        import json
+
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        MN1_ip = main.params['MN']['ip1']
+        ONOS_user = main.params['CTRL']['user']
+
+        default_sw_port = main.params['CTRL']['port1']
+       
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        num_sw = main.params['TEST']['numSwitch']
+
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+        
+        debug_mode = main.params['TEST']['debugMode']
+
+        local_time = time.strftime('%X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
+        if debug_mode == 'on':
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/100_sw_lat_pcap_"+local_time) 
+ 
+        #Threshold for this test case
+        sw_disc_threshold_str = main.params['TEST']['swDisc100Threshold']
+        sw_disc_threshold_obj = sw_disc_threshold_str.split(",")
+        sw_disc_threshold_min = int(sw_disc_threshold_obj[0])
+        sw_disc_threshold_max = int(sw_disc_threshold_obj[1])
+
+        tshark_ofp_output = "/tmp/tshark_ofp_"+num_sw+"sw.txt"
+        tshark_tcp_output = "/tmp/tshark_tcp_"+num_sw+"sw.txt"
+
+        tshark_ofp_result_list = []
+        tshark_tcp_result_list = []
+
+        sw_discovery_lat_list = []
+
+        main.case(num_sw+" Switch discovery latency")
+        main.step("Assigning all switches to ONOS1")
+        for i in range(1, int(num_sw)+1):
+            main.Mininet1.assign_sw_controller(
+                    sw=str(i),
+                    ip1=ONOS1_ip,
+                    port1=default_sw_port)
+        
+        #Ensure that nodes are configured with ptpd
+        #Just a warning message
+        main.log.info("Please check ptpd configuration to ensure"+\
+                " All nodes' system times are in sync")
+        time.sleep(5)
+
+        for i in range(0, int(num_iter)):
+            
+            main.step("Set iptables rule to block incoming sw connections")
+            #Set iptables rule to block incoming switch connections
+            #The rule description is as follows:
+            #   Append to INPUT rule,
+            #   behavior DROP that matches following:
+            #       * packet type: tcp
+            #       * source IP: MN1_ip
+            #       * destination PORT: 6633
+            main.ONOS1.handle.sendline(
+                    "sudo iptables -A INPUT -p tcp -s "+MN1_ip+
+                    " --dport "+default_sw_port+" -j DROP")
+            main.ONOS1.handle.expect("\$") 
+            #   Append to OUTPUT rule, 
+            #   behavior DROP that matches following:
+            #       * packet type: tcp
+            #       * source IP: MN1_ip
+            #       * destination PORT: 6633
+            main.ONOS1.handle.sendline(
+                    "sudo iptables -A OUTPUT -p tcp -s "+MN1_ip+
+                    " --dport "+default_sw_port+" -j DROP")
+            main.ONOS1.handle.expect("\$")
+            #Give time to allow rule to take effect
+            #NOTE: Sleep period may need to be configured 
+            #      based on the number of switches in the topology
+            main.log.info("Please wait for switch connection to "+
+                    "time out")
+            time.sleep(60)
+            
+            #Gather vendor OFP with tshark
+            main.ONOS1.tshark_grep("OFP 86 Vendor", 
+                    tshark_ofp_output)
+            main.ONOS1.tshark_grep("TCP 74 ",
+                    tshark_tcp_output)
+
+            #NOTE: Remove all iptables rule quickly (flush)
+            #      Before removal, obtain TestON timestamp at which 
+            #      removal took place
+            #      (ensuring nodes are configured via ptp)
+            #      sudo iptables -F
+            
+            t0_system = time.time() * 1000
+            main.ONOS1.handle.sendline(
+                    "sudo iptables -F")
+
+            #Counter to track loop count
+            counter_loop = 0
+            counter_avail1 = 0
+            counter_avail2 = 0
+            counter_avail3 = 0
+            onos1_dev = False
+            onos2_dev = False
+            onos3_dev = False
+            while counter_loop < 60:
+                #Continue to check devices for all device 
+                #availability. When all devices in all 3
+                #ONOS instances indicate that devices are available
+                #obtain graph event timestamp for t1.
+                device_str_obj1 = main.ONOS1cli.devices()
+                device_str_obj2 = main.ONOS2cli.devices()
+                device_str_obj3 = main.ONOS3cli.devices()
+
+                device_json1 = json.loads(device_str_obj1)                
+                device_json2 = json.loads(device_str_obj2)                
+                device_json3 = json.loads(device_str_obj3)           
+                
+                for device1 in device_json1:
+                    if device1['available'] == True:
+                        counter_avail1 += 1
+                        if counter_avail1 == int(num_sw):
+                            onos1_dev = True
+                            main.log.info("All devices have been "+
+                                    "discovered on ONOS1")
+                    else:
+                        counter_avail1 = 0
+                for device2 in device_json2:
+                    if device2['available'] == True:
+                        counter_avail2 += 1
+                        if counter_avail2 == int(num_sw):
+                            onos2_dev = True
+                            main.log.info("All devices have been "+
+                                    "discovered on ONOS2")
+                    else:
+                        counter_avail2 = 0
+                for device3 in device_json3:
+                    if device3['available'] == True:
+                        counter_avail3 += 1
+                        if counter_avail3 == int(num_sw):
+                            onos3_dev = True
+                            main.log.info("All devices have been "+
+                                    "discovered on ONOS3")
+                    else:
+                        counter_avail3 = 0
+
+                if onos1_dev and onos2_dev and onos3_dev:
+                    main.log.info("All devices have been discovered "+
+                            "on all ONOS instances")
+                    json_str_topology_metrics_1 =\
+                        main.ONOS1cli.topology_events_metrics()
+                    json_str_topology_metrics_2 =\
+                        main.ONOS2cli.topology_events_metrics()
+                    json_str_topology_metrics_3 =\
+                        main.ONOS3cli.topology_events_metrics()
+                   
+                    #Exit while loop if all devices discovered
+                    break 
+                
+                counter_loop += 1
+                #Give some time in between CLI calls
+                #(will not affect measurement)
+                time.sleep(3)
+
+            main.ONOS1.tshark_stop()
+            
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_ofp_output+" /tmp/") 
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_tcp_output+" /tmp/")
+
+            #TODO: Automate OFP output analysis
+            #Debug mode - print out packets captured at runtime     
+            if debug_mode == 'on': 
+                ofp_file = open(tshark_ofp_output, 'r')
+                main.log.info("Tshark OFP Vendor output: ")
+                for line in ofp_file:
+                    tshark_ofp_result_list.append(line)
+                    main.log.info(line)
+                ofp_file.close()
+
+                tcp_file = open(tshark_tcp_output, 'r')
+                main.log.info("Tshark TCP 74 output: ")
+                for line in tcp_file:
+                    tshark_tcp_result_list.append(line)
+                    main.log.info(line)
+                tcp_file.close()
+
+            json_obj_1 = json.loads(json_str_topology_metrics_1)
+            json_obj_2 = json.loads(json_str_topology_metrics_2)
+            json_obj_3 = json.loads(json_str_topology_metrics_3)
+
+            graph_timestamp_1 = \
+                    json_obj_1[graphTimestamp]['value']
+            graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+            graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+
+            graph_lat_1 = int(graph_timestamp_1) - int(t0_system)
+            graph_lat_2 = int(graph_timestamp_2) - int(t0_system)
+            graph_lat_3 = int(graph_timestamp_3) - int(t0_system)
+
+            avg_graph_lat = \
+                    (int(graph_lat_1) +\
+                     int(graph_lat_2) +\
+                     int(graph_lat_3)) / 3
+    
+            if avg_graph_lat > sw_disc_threshold_min \
+                    and avg_graph_lat < sw_disc_threshold_max:
+                sw_discovery_lat_list.append(
+                        avg_graph_lat)
+            else:
+                main.log.info("100 Switch discovery latency "+
+                        "exceeded the threshold.")
+            
+            #END ITERATION FOR LOOP
+
+        sw_lat_min = min(sw_discovery_lat_list)
+        sw_lat_max = max(sw_discovery_lat_list)
+        sw_lat_avg = sum(sw_discovery_lat_list) /\
+                     len(sw_discovery_lat_list)
+
+        main.log.report("100 Switch discovery lat "+\
+                "Min: "+str(sw_lat_min)+" ms"+\
+                "Max: "+str(sw_lat_max)+" ms"+\
+                "Avg: "+str(sw_lat_avg)+" ms")
+
+    def CASE6(self, main):
+        '''
+        Increase number of nodes and initiate CLI
+        '''
+        import time
+        
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
+
+        cell_name = main.params['ENV']['cellName']
+    
+        global cluster_count
+        
+        #Cluster size increased everytime the case is defined
+        cluster_count += 2 
+
+        main.log.report("Increasing cluster size to "+
+                str(cluster_count))
+
+        install_result = main.FALSE
+        if cluster_count == 5:
+            main.log.info("Installing nodes 4 and 5")
+            node4_result = \
+                main.ONOSbench.onos_install(node=ONOS4_ip)
+            node5_result = \
+                main.ONOSbench.onos_install(node=ONOS5_ip)
+            install_result = node4_result and node5_result
+
+            time.sleep(5)
+
+            main.ONOS4cli.start_onos_cli(ONOS4_ip)
+            main.ONOS5cli.start_onos_cli(ONOS5_ip)
+
+        elif cluster_count == 7:
+            main.log.info("Installing nodes 4 and 5")
+            node6_result = \
+                main.ONOSbench.onos_install(node=ONOS6_ip)
+            node7_result = \
+                main.ONOSbench.onos_install(node=ONOS7_ip)
+            install_result = node6_result and node7_result
+
+            time.sleep(5)
+
+            main.ONOS6cli.start_onos_cli(ONOS6_ip)
+            main.ONOS7cli.start_onos_cli(ONOS7_ip)
+
+
+
+
diff --git a/TestON/tests/TopoPerfNext/TopoPerfNext.params b/TestON/tests/TopoPerfNext/TopoPerfNext.params
index 851522c..8e31e62 100644
--- a/TestON/tests/TopoPerfNext/TopoPerfNext.params
+++ b/TestON/tests/TopoPerfNext/TopoPerfNext.params
@@ -1,5 +1,5 @@
 <PARAMS>
-    <testcases>1,2,3</testcases>
+    <testcases>1,2,3,6,2,3,6,2,3,6,2,3</testcases>
 
     <ENV>
         <cellName>topo_perf_test</cellName>
@@ -19,6 +19,11 @@
         <port2>6633</port2>
         <ip3>10.128.174.3</ip3>
         <port3>6633</port3>
+        <ip4>10.128.174.4</ip4>
+        
+        <ip5>10.128.174.5</ip5>
+        <ip6>10.128.174.6</ip6>
+        <ip7>10.128.174.7</ip7>
     </CTRL>
 
     <MN>
@@ -46,7 +51,7 @@
         </topo_config_name>
 
         #Number of times to iterate each case
-        <numIter>20</numIter>
+        <numIter>12</numIter>
         <numSwitch>2</numSwitch>
         #Number of iterations to ignore initially
         <iterIgnore>2</iterIgnore>
diff --git a/TestON/tests/TopoPerfNext/TopoPerfNext.py b/TestON/tests/TopoPerfNext/TopoPerfNext.py
index 87d7378..b737f4c 100644
--- a/TestON/tests/TopoPerfNext/TopoPerfNext.py
+++ b/TestON/tests/TopoPerfNext/TopoPerfNext.py
@@ -1,39 +1,43 @@
-# TopoPerfNext
+#TopoPerfNext
 #
-# Topology Performance test for ONOS-next
+#Topology Performance test for ONOS-next
 #
-# andrew@onlab.us
+#andrew@onlab.us
 #
-# If your machine does not come with numpy
-# run the following command:
-# sudo apt-get install python-numpy python-scipy
+#If your machine does not come with numpy
+#run the following command:
+#sudo apt-get install python-numpy python-scipy 
 
 import time
 import sys
 import os
 import re
 
-
 class TopoPerfNext:
-
-    def __init__( self ):
+    def __init__(self):
         self.default = ''
 
-    def CASE1( self, main ):
-        """
+    def CASE1(self, main):
+        '''
         ONOS startup sequence
-        """
+        '''
         import time
+        
+        ## Global cluster count for scale-out purposes
+        global cluster_count
+        #Set initial cluster count
+        cluster_count = 1 
+        ##
 
-        cell_name = main.params[ 'ENV' ][ 'cellName' ]
+        cell_name = main.params['ENV']['cellName']
 
-        git_pull = main.params[ 'GIT' ][ 'autoPull' ]
-        checkout_branch = main.params[ 'GIT' ][ 'checkout' ]
+        git_pull = main.params['GIT']['autoPull']
+        checkout_branch = main.params['GIT']['checkout']
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        
         #### Hardcoded ONOS nodes particular to my env ####
         ONOS4_ip = "10.128.174.4"
         ONOS5_ip = "10.128.174.5"
@@ -41,1507 +45,1694 @@
         ONOS7_ip = "10.128.174.7"
         #### ####
 
-        MN1_ip = main.params[ 'MN' ][ 'ip1' ]
-        BENCH_ip = main.params[ 'BENCH' ][ 'ip' ]
+        MN1_ip = main.params['MN']['ip1']
+        BENCH_ip = main.params['BENCH']['ip']
 
-        topo_cfg_file = main.params[ 'TEST' ][ 'topo_config_file' ]
-        topo_cfg_name = main.params[ 'TEST' ][ 'topo_config_name' ]
+        topo_cfg_file = main.params['TEST']['topo_config_file']
+        topo_cfg_name = main.params['TEST']['topo_config_name']
+        
+        main.case("Setting up test environment")
+        main.log.info("Copying topology event accumulator config"+\
+            " to ONOS /package/etc")
+        main.ONOSbench.handle.sendline("cp ~/"+\
+            topo_cfg_file+\
+            " ~/ONOS/tools/package/etc/"+\
+            topo_cfg_name)
+        main.ONOSbench.handle.expect("\$")
 
-        main.case( "Setting up test environment" )
-        main.log.info( "Copying topology event accumulator config" +
-                       " to ONOS /package/etc" )
-        main.ONOSbench.handle.sendline( "cp ~/" +
-                                        topo_cfg_file +
-                                        " ~/ONOS/tools/package/etc/" +
-                                        topo_cfg_name )
-        main.ONOSbench.handle.expect( "\$" )
+        main.log.report("Setting up test environment")
 
-        main.log.report( "Setting up test environment" )
+        main.step("Cleaning previously installed ONOS if any")
+        main.ONOSbench.onos_uninstall(node_ip=ONOS2_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS3_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS4_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS5_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS6_ip)
+        main.ONOSbench.onos_uninstall(node_ip=ONOS7_ip)
 
-        main.step( "Cleaning previously installed ONOS if any" )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS4_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS5_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS6_ip )
-        main.ONOSbench.onos_uninstall( node_ip=ONOS7_ip )
-
-        main.step( "Creating cell file" )
+        main.step("Creating cell file")
         cell_file_result = main.ONOSbench.create_cell_file(
-            BENCH_ip, cell_name, MN1_ip, "onos-core,onos-app-metrics",
-            ONOS1_ip, ONOS2_ip, ONOS3_ip )
+                BENCH_ip, cell_name, MN1_ip, 
+                "onos-core,onos-app-metrics,onos-app-gui",
+                ONOS1_ip)
 
-        main.step( "Applying cell file to environment" )
-        cell_apply_result = main.ONOSbench.set_cell( cell_name )
+        main.step("Applying cell file to environment")
+        cell_apply_result = main.ONOSbench.set_cell(cell_name)
         verify_cell_result = main.ONOSbench.verify_cell()
-
-        # NOTE: This step may be removed after proper
+        
+        #NOTE: This step may be removed after proper 
         #      copy cat log functionality
-        main.step( "Removing raft/copy-cat logs from ONOS nodes" )
+        main.step("Removing raft/copy-cat logs from ONOS nodes")
         main.ONOSbench.onos_remove_raft_logs()
-        time.sleep( 30 )
+        time.sleep(30)
 
-        main.step( "Git checkout and pull " + checkout_branch )
+        main.step("Git checkout and pull "+checkout_branch)
         if git_pull == 'on':
-            checkout_result = \
-                main.ONOSbench.git_checkout( checkout_branch )
+            #checkout_result = \
+                    #        main.ONOSbench.git_checkout(checkout_branch)
+            checkout_result = main.TRUE
             pull_result = main.ONOSbench.git_pull()
         else:
             checkout_result = main.TRUE
             pull_result = main.TRUE
-            main.log.info( "Skipped git checkout and pull" )
+            main.log.info("Skipped git checkout and pull")
 
-        # TODO: Uncomment when wiki posting works
-        #main.log.report( "Commit information - " )
-        # main.ONOSbench.get_version( report=True )
+        main.log.report("Commit information - ")
+        main.ONOSbench.get_version(report=True)
 
-        main.step( "Using mvn clean & install" )
-        #mvn_result = main.ONOSbench.clean_install()
+        main.step("Using mvn clean & install")
+        mvn_result = main.ONOSbench.clean_install()
         mvn_result = main.TRUE
 
-        main.step( "Set cell for ONOS cli env" )
-        main.ONOS1cli.set_cell( cell_name )
-        main.ONOS2cli.set_cell( cell_name )
-        main.ONOS3cli.set_cell( cell_name )
+        main.step("Set cell for ONOS cli env")
+        main.ONOS1cli.set_cell(cell_name)
+        #main.ONOS2cli.set_cell(cell_name)
+        #main.ONOS3cli.set_cell(cell_name)
 
-        main.step( "Creating ONOS package" )
+        main.step("Creating ONOS package")
         package_result = main.ONOSbench.onos_package()
 
-        main.step( "Installing ONOS package" )
-        install1_result = main.ONOSbench.onos_install( node=ONOS1_ip )
-        install2_result = main.ONOSbench.onos_install( node=ONOS2_ip )
-        install3_result = main.ONOSbench.onos_install( node=ONOS3_ip )
+        main.step("Installing ONOS package")
+        install1_result = main.ONOSbench.onos_install(node=ONOS1_ip)
+        #install2_result = main.ONOSbench.onos_install(node=ONOS2_ip)
+        #install3_result = main.ONOSbench.onos_install(node=ONOS3_ip)
 
-        time.sleep( 10 )
+        time.sleep(10)
 
-        main.step( "Start onos cli" )
-        cli1 = main.ONOS1cli.start_onos_cli( ONOS1_ip )
-        cli2 = main.ONOS2cli.start_onos_cli( ONOS2_ip )
-        cli3 = main.ONOS3cli.start_onos_cli( ONOS3_ip )
+        main.step("Start onos cli")
+        cli1 = main.ONOS1cli.start_onos_cli(ONOS1_ip)
+        #cli2 = main.ONOS2cli.start_onos_cli(ONOS2_ip)
+        #cli3 = main.ONOS3cli.start_onos_cli(ONOS3_ip)
 
-        utilities.assert_equals( expect=main.TRUE,
-                                 actual=cell_file_result and cell_apply_result and
-                                 verify_cell_result and checkout_result and
-                                 pull_result and mvn_result and
-                                 install1_result and install2_result and
-                                 install3_result,
-                                 onpass="Test Environment setup successful",
-                                 onfail="Failed to setup test environment" )
+        utilities.assert_equals(expect=main.TRUE,
+                actual= cell_file_result and cell_apply_result and\
+                        verify_cell_result and checkout_result and\
+                        pull_result and mvn_result and\
+                        install1_result, #and install2_result and\
+                        #install3_result,
+                onpass="Test Environment setup successful",
+                onfail="Failed to setup test environment")
 
-    def CASE2( self, main ):
-        """
+    def CASE2(self, main):
+        '''
         Assign s1 to ONOS1 and measure latency
-
+        
         There are 4 levels of latency measurements to this test:
-        1 ) End-to-end measurement: Complete end-to-end measurement
-           from TCP ( SYN/ACK ) handshake to Graph change
-        2 ) OFP-to-graph measurement: 'ONOS processing' snippet of
+        1) End-to-end measurement: Complete end-to-end measurement
+           from TCP (SYN/ACK) handshake to Graph change
+        2) OFP-to-graph measurement: 'ONOS processing' snippet of
            measurement from OFP Vendor message to Graph change
-        3 ) OFP-to-device measurement: 'ONOS processing without
+        3) OFP-to-device measurement: 'ONOS processing without 
            graph change' snippet of measurement from OFP vendor
            message to Device change timestamp
-        4 ) T0-to-device measurement: Measurement that includes
-           the switch handshake to devices timestamp without
-           the graph view change. ( TCP handshake -> Device
-           change )
-        """
+        4) T0-to-device measurement: Measurement that includes
+           the switch handshake to devices timestamp without 
+           the graph view change. (TCP handshake -> Device 
+           change)
+        '''
         import time
         import subprocess
         import json
         import requests
         import os
         import numpy
+        global cluster_count
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
+        ONOS_user = main.params['CTRL']['user']
 
-        # Number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-        # Number of first 'x' iterations to ignore:
-        iter_ignore = int( main.params[ 'TEST' ][ 'iterIgnore' ] )
+        default_sw_port = main.params['CTRL']['port1']
+       
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        #Number of first 'x' iterations to ignore:
+        iter_ignore = int(main.params['TEST']['iterIgnore'])
 
-        # Timestamp 'keys' for json metrics output.
-        # These are subject to change, hence moved into params
-        deviceTimestamp = main.params[ 'JSON' ][ 'deviceTimestamp' ]
-        graphTimestamp = main.params[ 'JSON' ][ 'graphTimestamp' ]
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        graphTimestamp = main.params['JSON']['graphTimestamp']
 
-        debug_mode = main.params[ 'TEST' ][ 'debugMode' ]
-        onos_log = main.params[ 'TEST' ][ 'onosLogFile' ]
+        debug_mode = main.params['TEST']['debugMode']
+        onos_log = main.params['TEST']['onosLogFile']
 
-        # Threshold for the test
-        threshold_str = main.params[ 'TEST' ][ 'singleSwThreshold' ]
-        threshold_obj = threshold_str.split( "," )
-        threshold_min = int( threshold_obj[ 0 ] )
-        threshold_max = int( threshold_obj[ 1 ] )
+        #Threshold for the test
+        threshold_str = main.params['TEST']['singleSwThreshold']
+        threshold_obj = threshold_str.split(",")
+        threshold_min = int(threshold_obj[0])
+        threshold_max = int(threshold_obj[1])
 
-        # List of switch add latency collected from
-        # all iterations
+        #List of switch add latency collected from
+        #all iterations
         latency_end_to_end_list = []
         latency_ofp_to_graph_list = []
         latency_ofp_to_device_list = []
         latency_t0_to_device_list = []
         latency_tcp_to_ofp_list = []
 
-        # Directory/file to store tshark results
+        #Directory/file to store tshark results
         tshark_of_output = "/tmp/tshark_of_topo.txt"
         tshark_tcp_output = "/tmp/tshark_tcp_topo.txt"
 
-        # String to grep in tshark output
-        tshark_tcp_string = "TCP 74 " + default_sw_port
+        #String to grep in tshark output
+        tshark_tcp_string = "TCP 74 "+default_sw_port
         tshark_of_string = "OFP 86 Vendor"
-
-        # Initialize assertion to TRUE
+     
+        #Initialize assertion to TRUE
         assertion = main.TRUE
-
-        local_time = time.strftime( '%x %X' )
-        local_time = local_time.replace( "/", "" )
-        local_time = local_time.replace( " ", "_" )
-        local_time = local_time.replace( ":", "" )
+      
+        local_time = time.strftime('%x %X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
         if debug_mode == 'on':
-            main.ONOS1.tshark_pcap( "eth0",
-                                    "/tmp/single_sw_lat_pcap_" + local_time )
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/single_sw_lat_pcap_"+local_time) 
 
-            main.log.info( "TEST" )
+            main.log.info("Debug mode is on")
 
-        main.log.report( "Latency of adding one switch to controller" )
-        main.log.report(
-            "First " +
-            str( iter_ignore ) +
-            " iterations ignored" +
-            " for jvm warmup time" )
-        main.log.report( "Total iterations of test: " + str( num_iter ) )
+        main.log.report("Latency of adding one switch to controller")
+        main.log.report("First "+str(iter_ignore)+" iterations ignored"+
+                " for jvm warmup time")
+        main.log.report("Total iterations of test: "+str(num_iter))
 
-        for i in range( 0, int( num_iter ) ):
-            main.log.info( "Starting tshark capture" )
+        for i in range(0, int(num_iter)):
+            main.log.info("Starting tshark capture")
 
-            #* TCP [ ACK, SYN ] is used as t0_a, the
-            #  very first "exchange" between ONOS and
+            #* TCP [ACK, SYN] is used as t0_a, the
+            #  very first "exchange" between ONOS and 
             #  the switch for end-to-end measurement
-            #* OFP [ Stats Reply ] is used for t0_b
+            #* OFP [Stats Reply] is used for t0_b
             #  the very last OFP message between ONOS
             #  and the switch for ONOS measurement
-            main.ONOS1.tshark_grep( tshark_tcp_string,
-                                    tshark_tcp_output )
-            main.ONOS1.tshark_grep( tshark_of_string,
-                                    tshark_of_output )
+            main.ONOS1.tshark_grep(tshark_tcp_string,
+                    tshark_tcp_output)
+            main.ONOS1.tshark_grep(tshark_of_string,
+                    tshark_of_output)
 
-            # Wait and ensure tshark is started and
-            # capturing
-            time.sleep( 10 )
+            #Wait and ensure tshark is started and 
+            #capturing
+            time.sleep(10)
 
-            main.log.info( "Assigning s1 to controller" )
+            main.log.info("Assigning s1 to controller")
 
-            main.Mininet1.assign_sw_controller(
-                sw="1",
-                ip1=ONOS1_ip,
-                port1=default_sw_port )
+            main.Mininet1.assign_sw_controller(sw="1",
+                    ip1=ONOS1_ip, port1=default_sw_port)
 
-            # Wait and ensure switch is assigned
-            # before stopping tshark
-            time.sleep( 30 )
-
-            main.log.info( "Stopping all Tshark processes" )
+            #Wait and ensure switch is assigned
+            #before stopping tshark
+            time.sleep(30)
+   
+            main.log.info("Stopping all Tshark processes")
             main.ONOS1.stop_tshark()
 
-            # tshark output is saved in ONOS. Use subprocess
-            # to copy over files to TestON for parsing
-            main.log.info( "Copying over tshark files" )
-
-            # TCP CAPTURE ****
-            # Copy the tshark output from ONOS machine to
-            # TestON machine in tshark_tcp_output directory>file
-            os.system( "scp " + ONOS_user + "@" + ONOS1_ip + ":" +
-                       tshark_tcp_output + " /tmp/" )
-            tcp_file = open( tshark_tcp_output, 'r' )
+            #tshark output is saved in ONOS. Use subprocess
+            #to copy over files to TestON for parsing
+            main.log.info("Copying over tshark files")
+            
+            #TCP CAPTURE ****
+            #Copy the tshark output from ONOS machine to
+            #TestON machine in tshark_tcp_output directory>file
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_tcp_output+" /tmp/") 
+            tcp_file = open(tshark_tcp_output, 'r')
             temp_text = tcp_file.readline()
-            temp_text = temp_text.split( " " )
+            temp_text = temp_text.split(" ")
 
-            main.log.info( "Object read in from TCP capture: " +
-                           str( temp_text ) )
-            if len( temp_text ) > 1:
-                t0_tcp = float( temp_text[ 1 ] ) * 1000.0
+            main.log.info("Object read in from TCP capture: "+
+                    str(temp_text))
+            if len(temp_text) > 1:
+                t0_tcp = float(temp_text[1])*1000.0
             else:
-                main.log.error( "Tshark output file for TCP" +
-                                " returned unexpected results" )
+                main.log.error("Tshark output file for TCP"+
+                        " returned unexpected results")
                 t0_tcp = 0
                 assertion = main.FALSE
-
+            
             tcp_file.close()
             #****************
 
-            # OF CAPTURE ****
-            os.system( "scp " + ONOS_user + "@" + ONOS1_ip + ":" +
-                       tshark_of_output + " /tmp/" )
-            of_file = open( tshark_of_output, 'r' )
-
+            #OF CAPTURE ****
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_of_output+" /tmp/")
+            of_file = open(tshark_of_output, 'r')
+           
             line_ofp = ""
-            # Read until last line of file
+            #Read until last line of file
             while True:
                 temp_text = of_file.readline()
-                if temp_text != '':
+                if temp_text !='':
                     line_ofp = temp_text
                 else:
-                    break
-            obj = line_ofp.split( " " )
-
-            main.log.info( "Object read in from OFP capture: " +
-                           str( line_ofp ) )
-
-            if len( line_ofp ) > 1:
-                t0_ofp = float( obj[ 1 ] ) * 1000.0
+                    break 
+            obj = line_ofp.split(" ")
+            
+            main.log.info("Object read in from OFP capture: "+
+                    str(line_ofp))
+    
+            if len(line_ofp) > 1:
+                t0_ofp = float(obj[1])*1000.0
             else:
-                main.log.error( "Tshark output file for OFP" +
-                                " returned unexpected results" )
+                main.log.error("Tshark output file for OFP"+
+                        " returned unexpected results")
                 t0_ofp = 0
                 assertion = main.FALSE
-
+            
             of_file.close()
             #****************
-
+           
             json_str_1 = main.ONOS1cli.topology_events_metrics()
-            json_str_2 = main.ONOS2cli.topology_events_metrics()
-            json_str_3 = main.ONOS3cli.topology_events_metrics()
+            #Initialize scale-out variables 
+            json_str_2 = "" 
+            json_str_3 = ""
+            json_str_4 = ""
+            json_str_5 = ""
+            json_str_6 = ""
+            json_str_7 = ""
 
-            json_obj_1 = json.loads( json_str_1 )
-            json_obj_2 = json.loads( json_str_2 )
-            json_obj_3 = json.loads( json_str_3 )
-
-            # Obtain graph timestamp. This timestsamp captures
-            # the epoch time at which the topology graph was updated.
+            json_obj_1 = json.loads(json_str_1)
+            #Initialize scale-out variables
+            json_obj_2 = ""
+            json_obj_3 = "" 
+            json_obj_4 = ""
+            json_obj_5 = ""
+            json_obj_6 = ""
+            json_obj_7 = ""
+            
+            #Obtain graph timestamp. This timestsamp captures
+            #the epoch time at which the topology graph was updated.
             graph_timestamp_1 = \
-                json_obj_1[ graphTimestamp ][ 'value' ]
-            graph_timestamp_2 = \
-                json_obj_2[ graphTimestamp ][ 'value' ]
-            graph_timestamp_3 = \
-                json_obj_3[ graphTimestamp ][ 'value' ]
-
-            # Obtain device timestamp. This timestamp captures
-            # the epoch time at which the device event happened
+                    json_obj_1[graphTimestamp]['value']
+            #Obtain device timestamp. This timestamp captures
+            #the epoch time at which the device event happened
             device_timestamp_1 = \
-                json_obj_1[ deviceTimestamp ][ 'value' ]
-            device_timestamp_2 = \
-                json_obj_2[ deviceTimestamp ][ 'value' ]
-            device_timestamp_3 = \
-                json_obj_3[ deviceTimestamp ][ 'value' ]
+                    json_obj_1[deviceTimestamp]['value'] 
+           
+            #t0 to device processing latency 
+            delta_device_1 = int(device_timestamp_1) - int(t0_tcp)
+            
+            #t0 to graph processing latency (end-to-end)
+            delta_graph_1 = int(graph_timestamp_1) - int(t0_tcp)
+            
+            #ofp to graph processing latency (ONOS processing)
+            delta_ofp_graph_1 = int(graph_timestamp_1) - int(t0_ofp)
+            
+            #ofp to device processing latency (ONOS processing)
+            delta_ofp_device_1 = float(device_timestamp_1) - float(t0_ofp)
 
-            # t0 to device processing latency
-            delta_device_1 = int( device_timestamp_1 ) - int( t0_tcp )
-            delta_device_2 = int( device_timestamp_2 ) - int( t0_tcp )
-            delta_device_3 = int( device_timestamp_3 ) - int( t0_tcp )
+            #TODO: Create even cluster number events
 
-            # Get average of delta from all instances
+            #Include scale-out measurements when applicable
+            if cluster_count >= 3:
+                json_str_2 = main.ONOS2cli.topology_events_metrics()
+                json_str_3 = main.ONOS3cli.topology_events_metrics()
+                json_obj_2 = json.loads(json_str_2)
+                json_obj_3 = json.loads(json_str_3)
+                graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+                graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+                device_timestamp_2 = \
+                    json_obj_2[deviceTimestamp]['value'] 
+                device_timestamp_3 = \
+                    json_obj_3[deviceTimestamp]['value'] 
+                delta_device_2 = int(device_timestamp_2) - int(t0_tcp)
+                delta_device_3 = int(device_timestamp_3) - int(t0_tcp)
+                delta_graph_2 = int(graph_timestamp_2) - int(t0_tcp)
+                delta_graph_3 = int(graph_timestamp_3) - int(t0_tcp)
+                delta_ofp_graph_2 = int(graph_timestamp_2) - int(t0_ofp)
+                delta_ofp_graph_3 = int(graph_timestamp_3) - int(t0_ofp)
+                delta_ofp_device_2 = float(device_timestamp_2) -\
+                        float(t0_ofp)
+                delta_ofp_device_3 = float(device_timestamp_3) -\
+                        float(t0_ofp)
+            else:
+                delta_device_2 = 0
+                delta_device_3 = 0
+                delta_graph_2 = 0
+                delta_graph_3 = 0
+                delta_ofp_graph_2 = 0
+                delta_ofp_graph_3 = 0
+                delta_ofp_device_2 = 0
+                delta_ofp_device_3 = 0
+
+            if cluster_count >= 5:
+                json_str_4 = main.ONOS4cli.topology_events_metrics()
+                json_str_5 = main.ONOS5cli.topology_events_metrics()
+                json_obj_4 = json.loads(json_str_4)
+                json_obj_5 = json.loads(json_str_5)
+                graph_timestamp_4 = \
+                    json_obj_4[graphTimestamp]['value']
+                graph_timestamp_5 = \
+                    json_obj_5[graphTimestamp]['value']
+                device_timestamp_4 = \
+                    json_obj_4[deviceTimestamp]['value'] 
+                device_timestamp_5 = \
+                    json_obj_5[deviceTimestamp]['value'] 
+                delta_device_4 = int(device_timestamp_4) - int(t0_tcp)
+                delta_device_5 = int(device_timestamp_5) - int(t0_tcp)
+                delta_graph_4 = int(graph_timestamp_4) - int(t0_tcp)
+                delta_graph_5 = int(graph_timestamp_5) - int(t0_tcp)
+                delta_ofp_graph_4 = int(graph_timestamp_4) - int(t0_ofp)
+                delta_ofp_graph_5 = int(graph_timestamp_5) - int(t0_ofp)
+                delta_ofp_device_4 = float(device_timestamp_4) -\
+                        float(t0_ofp)
+                delta_ofp_device_5 = float(device_timestamp_5) -\
+                        float(t0_ofp)
+            else:
+                delta_device_4 = 0
+                delta_device_5 = 0
+                delta_graph_4 = 0
+                delta_graph_5 = 0
+                delta_ofp_graph_4 = 0
+                delta_ofp_graph_5 = 0
+                delta_ofp_device_4 = 0
+                delta_ofp_device_5 = 0
+
+            if cluster_count >= 7:
+                json_str_6 = main.ONOS6cli.topology_events_metrics()
+                json_str_7 = main.ONOS7cli.topology_events_metrics()
+                json_obj_6 = json.loads(json_str_6)
+                json_obj_7 = json.loads(json_str_7)
+                graph_timestamp_6 = \
+                    json_obj_6[graphTimestamp]['value']
+                graph_timestamp_7 = \
+                    json_obj_7[graphTimestamp]['value']
+                device_timestamp_6 = \
+                    json_obj_6[deviceTimestamp]['value'] 
+                device_timestamp_7 = \
+                    json_obj_7[deviceTimestamp]['value'] 
+                delta_device_6 = int(device_timestamp_6) - int(t0_tcp)
+                delta_device_7 = int(device_timestamp_7) - int(t0_tcp)
+                delta_graph_6 = int(graph_timestamp_6) - int(t0_tcp)
+                delta_graph_7 = int(graph_timestamp_7) - int(t0_tcp)
+                delta_ofp_graph_6 = int(graph_timestamp_6) - int(t0_ofp)
+                delta_ofp_graph_7 = int(graph_timestamp_7) - int(t0_ofp)
+                delta_ofp_device_6 = float(device_timestamp_6) -\
+                        float(t0_ofp)
+                delta_ofp_device_7 = float(device_timestamp_7) -\
+                        float(t0_ofp)
+            else:
+                delta_device_6 = 0
+                delta_device_7 = 0
+                delta_graph_6 = 0
+                delta_graph_7 = 0
+                delta_ofp_graph_6 = 0 
+                delta_ofp_graph_7 = 0
+                delta_ofp_device_6 = 0
+                delta_ofp_device_7 = 0
+
+            #Get average of delta from all instances
             avg_delta_device = \
-                ( int( delta_device_1 ) +
-                  int( delta_device_2 ) +
-                  int( delta_device_3 ) ) / 3
+                    (int(delta_device_1)+\
+                     int(delta_device_2)+\
+                     int(delta_device_3)+\
+                     int(delta_device_4)+\
+                     int(delta_device_5)+\
+                     int(delta_device_6)+\
+                     int(delta_device_7)) / cluster_count 
 
-            # Ensure avg delta meets the threshold before appending
+            #Ensure avg delta meets the threshold before appending
             if avg_delta_device > 0.0 and avg_delta_device < 10000\
-                    and int( i ) > iter_ignore:
-                latency_t0_to_device_list.append( avg_delta_device )
+                    and int(i) > iter_ignore:
+                latency_t0_to_device_list.append(avg_delta_device)
             else:
-                main.log.info(
-                    "Results for t0-to-device ignored" +
-                    "due to excess in threshold / warmup iteration." )
+                main.log.info("Results for t0-to-device ignored"+\
+                        "due to excess in threshold / warmup iteration.")
 
-            # t0 to graph processing latency ( end-to-end )
-            delta_graph_1 = int( graph_timestamp_1 ) - int( t0_tcp )
-            delta_graph_2 = int( graph_timestamp_2 ) - int( t0_tcp )
-            delta_graph_3 = int( graph_timestamp_3 ) - int( t0_tcp )
-
-            # Get average of delta from all instances
+            #Get average of delta from all instances
+            #TODO: use max delta graph
+            #max_delta_graph = max(three)
             avg_delta_graph = \
-                ( int( delta_graph_1 ) +
-                  int( delta_graph_2 ) +
-                  int( delta_graph_3 ) ) / 3
+                    (int(delta_graph_1)+\
+                     int(delta_graph_2)+\
+                     int(delta_graph_3)+\
+                     int(delta_graph_4)+\
+                     int(delta_graph_5)+\
+                     int(delta_graph_6)+\
+                     int(delta_graph_7)) / cluster_count
 
-            # Ensure avg delta meets the threshold before appending
+            #Ensure avg delta meets the threshold before appending
             if avg_delta_graph > 0.0 and avg_delta_graph < 10000\
-                    and int( i ) > iter_ignore:
-                latency_end_to_end_list.append( avg_delta_graph )
+                    and int(i) > iter_ignore:
+                latency_end_to_end_list.append(avg_delta_graph)
             else:
-                main.log.info( "Results for end-to-end ignored" +
-                               "due to excess in threshold" )
+                main.log.info("Results for end-to-end ignored"+\
+                        "due to excess in threshold")
 
-            # ofp to graph processing latency ( ONOS processing )
-            delta_ofp_graph_1 = int( graph_timestamp_1 ) - int( t0_ofp )
-            delta_ofp_graph_2 = int( graph_timestamp_2 ) - int( t0_ofp )
-            delta_ofp_graph_3 = int( graph_timestamp_3 ) - int( t0_ofp )
-
+            
             avg_delta_ofp_graph = \
-                ( int( delta_ofp_graph_1 ) +
-                  int( delta_ofp_graph_2 ) +
-                  int( delta_ofp_graph_3 ) ) / 3
-
+                    (int(delta_ofp_graph_1)+\
+                     int(delta_ofp_graph_2)+\
+                     int(delta_ofp_graph_3)+\
+                     int(delta_ofp_graph_4)+\
+                     int(delta_ofp_graph_5)+\
+                     int(delta_ofp_graph_6)+\
+                     int(delta_ofp_graph_7)) / cluster_count 
+            
             if avg_delta_ofp_graph > threshold_min \
                     and avg_delta_ofp_graph < threshold_max\
-                    and int( i ) > iter_ignore:
-                latency_ofp_to_graph_list.append( avg_delta_ofp_graph )
-            elif avg_delta_ofp_graph > ( -10 ) and \
+                    and int(i) > iter_ignore:
+                latency_ofp_to_graph_list.append(avg_delta_ofp_graph)
+            elif avg_delta_ofp_graph > (-10) and \
                     avg_delta_ofp_graph < 0.0 and\
-                    int( i ) > iter_ignore:
-                main.log.info( "Sub-millisecond result likely; " +
-                               "negative result was rounded to 0" )
-                # NOTE: Current metrics framework does not
-                # support sub-millisecond accuracy. Therefore,
-                # if the result is negative, we can reasonably
-                # conclude sub-millisecond results and just
-                # append the best rounded effort - 0 ms.
-                latency_ofp_to_graph_list.append( 0 )
+                    int(i) > iter_ignore:
+                main.log.info("Sub-millisecond result likely; "+
+                    "negative result was rounded to 0")
+                #NOTE: Current metrics framework does not 
+                #support sub-millisecond accuracy. Therefore,
+                #if the result is negative, we can reasonably
+                #conclude sub-millisecond results and just 
+                #append the best rounded effort - 0 ms. 
+                latency_ofp_to_graph_list.append(0)
             else:
-                main.log.info( "Results for ofp-to-graph " +
-                               "ignored due to excess in threshold" )
+                main.log.info("Results for ofp-to-graph "+\
+                        "ignored due to excess in threshold")
 
-            # ofp to device processing latency ( ONOS processing )
-            delta_ofp_device_1 = float( device_timestamp_1 ) - float( t0_ofp )
-            delta_ofp_device_2 = float( device_timestamp_2 ) - float( t0_ofp )
-            delta_ofp_device_3 = float( device_timestamp_3 ) - float( t0_ofp )
-
+            
             avg_delta_ofp_device = \
-                ( float( delta_ofp_device_1 ) +
-                  float( delta_ofp_device_2 ) +
-                  float( delta_ofp_device_3 ) ) / 3
-
-            # NOTE: ofp - delta measurements are occasionally negative
+                    (float(delta_ofp_device_1)+\
+                     float(delta_ofp_device_2)+\
+                     float(delta_ofp_device_3)+\
+                     float(delta_ofp_device_4)+\
+                     float(delta_ofp_device_5)+\
+                     float(delta_ofp_device_6)+\
+                     float(delta_ofp_device_7)) / cluster_count 
+            
+            #NOTE: ofp - delta measurements are occasionally negative
             #      due to system time misalignment.
-            latency_ofp_to_device_list.append( avg_delta_ofp_device )
+            latency_ofp_to_device_list.append(avg_delta_ofp_device)
 
-            delta_ofp_tcp = int( t0_ofp ) - int( t0_tcp )
+            delta_ofp_tcp = int(t0_ofp) - int(t0_tcp)
             if delta_ofp_tcp > threshold_min \
                     and delta_ofp_tcp < threshold_max and\
-                    int( i ) > iter_ignore:
-                latency_tcp_to_ofp_list.append( delta_ofp_tcp )
+                    int(i) > iter_ignore:
+                latency_tcp_to_ofp_list.append(delta_ofp_tcp)
             else:
-                main.log.info( "Results fo tcp-to-ofp " +
-                               "ignored due to excess in threshold" )
+                main.log.info("Results fo tcp-to-ofp "+\
+                        "ignored due to excess in threshold")
 
-            # TODO:
-            # Fetch logs upon threshold excess
+            #TODO:
+            #Fetch logs upon threshold excess
 
-            main.log.info( "ONOS1 delta end-to-end: " +
-                           str( delta_graph_1 ) + " ms" )
-            main.log.info( "ONOS2 delta end-to-end: " +
-                           str( delta_graph_2 ) + " ms" )
-            main.log.info( "ONOS3 delta end-to-end: " +
-                           str( delta_graph_3 ) + " ms" )
+            main.log.info("ONOS1 delta end-to-end: "+
+                    str(delta_graph_1) + " ms")
 
-            main.log.info( "ONOS1 delta OFP - graph: " +
-                           str( delta_ofp_graph_1 ) + " ms" )
-            main.log.info( "ONOS2 delta OFP - graph: " +
-                           str( delta_ofp_graph_2 ) + " ms" )
-            main.log.info( "ONOS3 delta OFP - graph: " +
-                           str( delta_ofp_graph_3 ) + " ms" )
+            main.log.info("ONOS1 delta OFP - graph: "+
+                    str(delta_ofp_graph_1) + " ms")
+            
+            main.log.info("ONOS1 delta device - t0: "+
+                    str(delta_device_1) + " ms")
+         
+            main.log.info("TCP to OFP delta: "+
+                    str(delta_ofp_tcp) + " ms")
 
-            main.log.info( "ONOS1 delta device - t0: " +
-                           str( delta_device_1 ) + " ms" )
-            main.log.info( "ONOS2 delta device - t0: " +
-                           str( delta_device_2 ) + " ms" )
-            main.log.info( "ONOS3 delta device - t0: " +
-                           str( delta_device_3 ) + " ms" )
+            main.step("Remove switch from controller")
+            main.Mininet1.delete_sw_controller("s1")
 
-            main.log.info( "TCP to OFP delta: " +
-                           str( delta_ofp_tcp ) + " ms" )
-            # main.log.info( "ONOS1 delta OFP - device: "+
-            #        str( delta_ofp_device_1 ) + " ms" )
-            # main.log.info( "ONOS2 delta OFP - device: "+
-            #        str( delta_ofp_device_2 ) + " ms" )
-            # main.log.info( "ONOS3 delta OFP - device: "+
-            #        str( delta_ofp_device_3 ) + " ms" )
+            time.sleep(5)
 
-            main.step( "Remove switch from controller" )
-            main.Mininet1.delete_sw_controller( "s1" )
+        #END of for loop iteration
 
-            time.sleep( 5 )
-
-        # END of for loop iteration
-
-        # If there is at least 1 element in each list,
-        # pass the test case
-        if len( latency_end_to_end_list ) > 0 and\
-           len( latency_ofp_to_graph_list ) > 0 and\
-           len( latency_ofp_to_device_list ) > 0 and\
-           len( latency_t0_to_device_list ) > 0 and\
-           len( latency_tcp_to_ofp_list ) > 0:
+        #If there is at least 1 element in each list,
+        #pass the test case
+        if len(latency_end_to_end_list) > 0 and\
+           len(latency_ofp_to_graph_list) > 0 and\
+           len(latency_ofp_to_device_list) > 0 and\
+           len(latency_t0_to_device_list) > 0 and\
+           len(latency_tcp_to_ofp_list) > 0:
             assertion = main.TRUE
-        elif len( latency_end_to_end_list ) == 0:
-            # The appending of 0 here is to prevent
-            # the min,max,sum functions from failing
-            # below
-            latency_end_to_end_list.append( 0 )
+        elif len(latency_end_to_end_list) == 0:
+            #The appending of 0 here is to prevent 
+            #the min,max,sum functions from failing 
+            #below
+            latency_end_to_end_list.append(0)
             assertion = main.FALSE
-        elif len( latency_ofp_to_graph_list ) == 0:
-            latency_ofp_to_graph_list.append( 0 )
+        elif len(latency_ofp_to_graph_list) == 0:
+            latency_ofp_to_graph_list.append(0)
             assertion = main.FALSE
-        elif len( latency_ofp_to_device_list ) == 0:
-            latency_ofp_to_device_list.append( 0 )
+        elif len(latency_ofp_to_device_list) == 0:
+            latency_ofp_to_device_list.append(0)
             assertion = main.FALSE
-        elif len( latency_t0_to_device_list ) == 0:
-            latency_t0_to_device_list.append( 0 )
+        elif len(latency_t0_to_device_list) == 0:
+            latency_t0_to_device_list.append(0)
             assertion = main.FALSE
-        elif len( latency_tcp_to_ofp_list ) == 0:
-            latency_tcp_to_ofp_list.append( 0 )
+        elif len(latency_tcp_to_ofp_list) == 0:
+            latency_tcp_to_ofp_list.append(0)
             assertion = main.FALSE
 
-        # Calculate min, max, avg of latency lists
+        #Calculate min, max, avg of latency lists
         latency_end_to_end_max = \
-            int( max( latency_end_to_end_list ) )
+                int(max(latency_end_to_end_list))
         latency_end_to_end_min = \
-            int( min( latency_end_to_end_list ) )
+                int(min(latency_end_to_end_list))
         latency_end_to_end_avg = \
-            ( int( sum( latency_end_to_end_list ) ) /
-              len( latency_end_to_end_list ) )
+                (int(sum(latency_end_to_end_list)) / \
+                 len(latency_end_to_end_list))
         latency_end_to_end_std_dev = \
-            str( round( numpy.std( latency_end_to_end_list ), 1 ) )
+                str(round(numpy.std(latency_end_to_end_list),1))
 
         latency_ofp_to_graph_max = \
-            int( max( latency_ofp_to_graph_list ) )
+                int(max(latency_ofp_to_graph_list))
         latency_ofp_to_graph_min = \
-            int( min( latency_ofp_to_graph_list ) )
+                int(min(latency_ofp_to_graph_list))
         latency_ofp_to_graph_avg = \
-            ( int( sum( latency_ofp_to_graph_list ) ) /
-              len( latency_ofp_to_graph_list ) )
+                (int(sum(latency_ofp_to_graph_list)) / \
+                 len(latency_ofp_to_graph_list))
         latency_ofp_to_graph_std_dev = \
-            str( round( numpy.std( latency_ofp_to_graph_list ), 1 ) )
+                str(round(numpy.std(latency_ofp_to_graph_list),1))
 
         latency_ofp_to_device_max = \
-            int( max( latency_ofp_to_device_list ) )
+                int(max(latency_ofp_to_device_list))
         latency_ofp_to_device_min = \
-            int( min( latency_ofp_to_device_list ) )
+                int(min(latency_ofp_to_device_list))
         latency_ofp_to_device_avg = \
-            ( int( sum( latency_ofp_to_device_list ) ) /
-              len( latency_ofp_to_device_list ) )
+                (int(sum(latency_ofp_to_device_list)) / \
+                 len(latency_ofp_to_device_list))
         latency_ofp_to_device_std_dev = \
-            str( round( numpy.std( latency_ofp_to_device_list ), 1 ) )
+                str(round(numpy.std(latency_ofp_to_device_list),1))
 
         latency_t0_to_device_max = \
-            int( max( latency_t0_to_device_list ) )
+                int(max(latency_t0_to_device_list))
         latency_t0_to_device_min = \
-            int( min( latency_t0_to_device_list ) )
+                int(min(latency_t0_to_device_list))
         latency_t0_to_device_avg = \
-            ( int( sum( latency_t0_to_device_list ) ) /
-              len( latency_t0_to_device_list ) )
+                (int(sum(latency_t0_to_device_list)) / \
+                 len(latency_t0_to_device_list))
         latency_ofp_to_device_std_dev = \
-            str( round( numpy.std( latency_t0_to_device_list ), 1 ) )
+                str(round(numpy.std(latency_t0_to_device_list),1))
 
         latency_tcp_to_ofp_max = \
-            int( max( latency_tcp_to_ofp_list ) )
+                int(max(latency_tcp_to_ofp_list))
         latency_tcp_to_ofp_min = \
-            int( min( latency_tcp_to_ofp_list ) )
+                int(min(latency_tcp_to_ofp_list))
         latency_tcp_to_ofp_avg = \
-            ( int( sum( latency_tcp_to_ofp_list ) ) /
-              len( latency_tcp_to_ofp_list ) )
+                (int(sum(latency_tcp_to_ofp_list)) / \
+                 len(latency_tcp_to_ofp_list))
         latency_tcp_to_ofp_std_dev = \
-            str( round( numpy.std( latency_tcp_to_ofp_list ), 1 ) )
+                str(round(numpy.std(latency_tcp_to_ofp_list),1))
 
-        main.log.report(
-            "Switch add - End-to-end latency: " +
-            "Avg: " +
-            str( latency_end_to_end_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            latency_end_to_end_std_dev +
-            " ms" )
-        main.log.report(
-            "Switch add - OFP-to-Graph latency: " +
-            "Note: results are not accurate to sub-millisecond. " +
-            "Any sub-millisecond results are rounded to 0 ms. " )
-        main.log.report(
-            "Avg: " +
-            str( latency_ofp_to_graph_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            latency_ofp_to_graph_std_dev +
-            " ms" )
-        main.log.report(
-            "Switch add - TCP-to-OFP latency: " +
-            "Avg: " +
-            str( latency_tcp_to_ofp_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            latency_tcp_to_ofp_std_dev +
-            " ms" )
+        main.log.report("Cluster size: "+str(cluster_count)+\
+                " node(s)")
+        main.log.report("Switch add - End-to-end latency: "+\
+                "Avg: "+str(latency_end_to_end_avg)+" ms "+
+                "Std Deviation: "+latency_end_to_end_std_dev+" ms")
+        main.log.report("Switch add - OFP-to-Graph latency: "+\
+                "Note: results are not accurate to sub-millisecond. "+
+                "Any sub-millisecond results are rounded to 0 ms. ")
+        main.log.report("Avg: "+str(latency_ofp_to_graph_avg)+" ms "+
+                "Std Deviation: "+latency_ofp_to_graph_std_dev+" ms")
+        main.log.report("Switch add - TCP-to-OFP latency: "+\
+                "Avg: "+str(latency_tcp_to_ofp_avg)+" ms "+
+                "Std Deviation: "+latency_tcp_to_ofp_std_dev+" ms")
 
         if debug_mode == 'on':
-            main.ONOS1.cp_logs_to_dir( "/opt/onos/log/karaf.log",
-                                       "/tmp/", copy_file_name="sw_lat_karaf" )
+            main.ONOS1.cp_logs_to_dir("/opt/onos/log/karaf.log",
+                    "/tmp/", copy_file_name="sw_lat_karaf")
 
-        utilities.assert_equals( expect=main.TRUE, actual=assertion,
-                                 onpass="Switch latency test successful",
-                                 onfail="Switch latency test failed" )
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+                onpass="Switch latency test successful",
+                onfail="Switch latency test failed")
 
-    def CASE3( self, main ):
-        """
+    def CASE3(self, main):
+        '''
         Bring port up / down and measure latency.
         Port enable / disable is simulated by ifconfig up / down
-
-        In ONOS-next, we must ensure that the port we are
+        
+        In ONOS-next, we must ensure that the port we are 
         manipulating is connected to another switch with a valid
         connection. Otherwise, graph view will not be updated.
-        """
+        '''
         import time
         import subprocess
         import os
         import requests
         import json
         import numpy
+        global cluster_count
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS_user = main.params['CTRL']['user']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
-
+        default_sw_port = main.params['CTRL']['port1']
+      
         assertion = main.TRUE
-        # Number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+       
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+        
+        debug_mode = main.params['TEST']['debugMode']
 
-        # Timestamp 'keys' for json metrics output.
-        # These are subject to change, hence moved into params
-        deviceTimestamp = main.params[ 'JSON' ][ 'deviceTimestamp' ]
-        graphTimestamp = main.params[ 'JSON' ][ 'graphTimestamp' ]
-
-        debug_mode = main.params[ 'TEST' ][ 'debugMode' ]
-
-        local_time = time.strftime( '%x %X' )
-        local_time = local_time.replace( "/", "" )
-        local_time = local_time.replace( " ", "_" )
-        local_time = local_time.replace( ":", "" )
+        local_time = time.strftime('%x %X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
         if debug_mode == 'on':
-            main.ONOS1.tshark_pcap( "eth0",
-                                    "/tmp/port_lat_pcap_" + local_time )
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/port_lat_pcap_"+local_time) 
 
-        # Threshold for this test case
-        up_threshold_str = main.params[ 'TEST' ][ 'portUpThreshold' ]
-        down_threshold_str = main.params[ 'TEST' ][ 'portDownThreshold' ]
+        #Threshold for this test case
+        up_threshold_str = main.params['TEST']['portUpThreshold']
+        down_threshold_str = main.params['TEST']['portDownThreshold']
+        
+        up_threshold_obj = up_threshold_str.split(",")
+        down_threshold_obj = down_threshold_str.split(",")
 
-        up_threshold_obj = up_threshold_str.split( "," )
-        down_threshold_obj = down_threshold_str.split( "," )
+        up_threshold_min = int(up_threshold_obj[0])
+        up_threshold_max = int(up_threshold_obj[1])
 
-        up_threshold_min = int( up_threshold_obj[ 0 ] )
-        up_threshold_max = int( up_threshold_obj[ 1 ] )
+        down_threshold_min = int(down_threshold_obj[0])
+        down_threshold_max = int(down_threshold_obj[1])
 
-        down_threshold_min = int( down_threshold_obj[ 0 ] )
-        down_threshold_max = int( down_threshold_obj[ 1 ] )
-
-        # NOTE: Some hardcoded variables you may need to configure
+        #NOTE: Some hardcoded variables you may need to configure
         #      besides the params
-
+            
         tshark_port_status = "OFP 130 Port Status"
 
         tshark_port_up = "/tmp/tshark_port_up.txt"
         tshark_port_down = "/tmp/tshark_port_down.txt"
         interface_config = "s1-eth1"
 
-        main.log.report( "Port enable / disable latency" )
-        main.log.report( "Simulated by ifconfig up / down" )
-        main.log.report( "Total iterations of test: " + str( num_iter ) )
+        main.log.report("Port enable / disable latency")
+        main.log.report("Simulated by ifconfig up / down")
+        main.log.report("Total iterations of test: "+str(num_iter))
 
-        main.step( "Assign switches s1 and s2 to controller 1" )
-        main.Mininet1.assign_sw_controller( sw="1", ip1=ONOS1_ip,
-                                            port1=default_sw_port )
-        main.Mininet1.assign_sw_controller( sw="2", ip1=ONOS1_ip,
-                                            port1=default_sw_port )
+        main.step("Assign switches s1 and s2 to controller 1")
+        main.Mininet1.assign_sw_controller(sw="1",ip1=ONOS1_ip,
+                port1=default_sw_port)
+        main.Mininet1.assign_sw_controller(sw="2",ip1=ONOS1_ip,
+                port1=default_sw_port)
 
-        # Give enough time for metrics to propagate the
-        # assign controller event. Otherwise, these events may
-        # carry over to our measurements
-        time.sleep( 15 )
+        #Give enough time for metrics to propagate the 
+        #assign controller event. Otherwise, these events may
+        #carry over to our measurements
+        time.sleep(15)
 
         port_up_device_to_ofp_list = []
         port_up_graph_to_ofp_list = []
         port_down_device_to_ofp_list = []
         port_down_graph_to_ofp_list = []
 
-        for i in range( 0, int( num_iter ) ):
-            main.step( "Starting wireshark capture for port status down" )
-            main.ONOS1.tshark_grep( tshark_port_status,
-                                    tshark_port_down )
+        for i in range(0, int(num_iter)):
+            main.step("Starting wireshark capture for port status down")
+            main.ONOS1.tshark_grep(tshark_port_status,
+                    tshark_port_down)
+            
+            time.sleep(5)
 
-            time.sleep( 5 )
+            #Disable interface that is connected to switch 2
+            main.step("Disable port: "+interface_config)
+            main.Mininet1.handle.sendline("sh ifconfig "+
+                    interface_config+" down")
+            main.Mininet1.handle.expect("mininet>")
 
-            # Disable interface that is connected to switch 2
-            main.step( "Disable port: " + interface_config )
-            main.Mininet1.handle.sendline( "sh ifconfig " +
-                                           interface_config + " down" )
-            main.Mininet1.handle.expect( "mininet>" )
-
-            time.sleep( 3 )
+            time.sleep(3)
             main.ONOS1.tshark_stop()
-
-            main.step( "Obtain t1 by metrics call" )
-            json_str_up_1 = main.ONOS1cli.topology_events_metrics()
-            json_str_up_2 = main.ONOS2cli.topology_events_metrics()
-            json_str_up_3 = main.ONOS3cli.topology_events_metrics()
-
-            json_obj_1 = json.loads( json_str_up_1 )
-            json_obj_2 = json.loads( json_str_up_2 )
-            json_obj_3 = json.loads( json_str_up_3 )
-
-            # Copy tshark output file from ONOS to TestON instance
+            
+            #Copy tshark output file from ONOS to TestON instance
             #/tmp directory
-            os.system( "scp " + ONOS_user + "@" + ONOS1_ip + ":" +
-                       tshark_port_down + " /tmp/" )
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_port_down+" /tmp/")
 
-            f_port_down = open( tshark_port_down, 'r' )
-            # Get first line of port down event from tshark
+            f_port_down = open(tshark_port_down, 'r')
+            #Get first line of port down event from tshark
             f_line = f_port_down.readline()
-            obj_down = f_line.split( " " )
-            if len( f_line ) > 0:
-                timestamp_begin_pt_down = int( float( obj_down[ 1 ] ) * 1000 )
-                main.log.info( "Port down begin timestamp: " +
-                               str( timestamp_begin_pt_down ) )
+            obj_down = f_line.split(" ")
+            if len(f_line) > 0:
+                #NOTE: obj_down[1] is a very unreliable
+                #      way to determine the timestamp. If 
+                #      results seem way off, check the object 
+                #      itself by printing it out
+                timestamp_begin_pt_down = int(float(obj_down[1])*1000)
+                # For some reason, wireshark decides to record the 
+                # timestamp at the 3rd object position instead of
+                # 2nd at unpredictable times. This statement is 
+                # used to capture that odd behavior and use the
+                # correct epoch time
+                if timestamp_begin_pt_down < 1400000000000:
+                    timestamp_begin_pt_down = \
+                        int(float(obj_down[2])*1000)
+
+                main.log.info("Port down begin timestamp: "+
+                        str(timestamp_begin_pt_down))
             else:
-                main.log.info( "Tshark output file returned unexpected" +
-                               " results: " + str( obj_down ) )
+                main.log.info("Tshark output file returned unexpected"+
+                        " results: "+str(obj_down))
                 timestamp_begin_pt_down = 0
-
             f_port_down.close()
-
-            main.log.info( "TEST tshark obj: " + str( obj_down ) )
-
-            time.sleep( 3 )
-
-            # Obtain graph timestamp. This timestsamp captures
-            # the epoch time at which the topology graph was updated.
+            
+            main.step("Obtain t1 by metrics call")
+            json_str_up_1 = main.ONOS1cli.topology_events_metrics()
+            json_obj_1 = json.loads(json_str_up_1)
+            #Obtain graph timestamp. This timestsamp captures
+            #the epoch time at which the topology graph was updated.
             graph_timestamp_1 = \
-                json_obj_1[ graphTimestamp ][ 'value' ]
-            graph_timestamp_2 = \
-                json_obj_2[ graphTimestamp ][ 'value' ]
-            graph_timestamp_3 = \
-                json_obj_3[ graphTimestamp ][ 'value' ]
-
-            main.log.info( "TEST graph timestamp ONOS1: " +
-                           str( graph_timestamp_1 ) )
-
-            # Obtain device timestamp. This timestamp captures
-            # the epoch time at which the device event happened
+                    json_obj_1[graphTimestamp]['value']
+            #Obtain device timestamp. This timestamp captures
+            #the epoch time at which the device event happened
             device_timestamp_1 = \
-                json_obj_1[ deviceTimestamp ][ 'value' ]
-            device_timestamp_2 = \
-                json_obj_2[ deviceTimestamp ][ 'value' ]
-            device_timestamp_3 = \
-                json_obj_3[ deviceTimestamp ][ 'value' ]
+                    json_obj_1[deviceTimestamp]['value'] 
+            #Get delta between graph event and OFP 
+            pt_down_graph_to_ofp_1 = int(graph_timestamp_1) -\
+                    int(timestamp_begin_pt_down)
+            #Get delta between device event and OFP
+            pt_down_device_to_ofp_1 = int(device_timestamp_1) -\
+                    int(timestamp_begin_pt_down)
+            
+            if cluster_count >= 3:
+                json_str_up_2 = main.ONOS2cli.topology_events_metrics()
+                json_str_up_3 = main.ONOS3cli.topology_events_metrics()
+                json_obj_2 = json.loads(json_str_up_2)
+                json_obj_3 = json.loads(json_str_up_3)
+                graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+                graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+                device_timestamp_2 = \
+                    json_obj_2[deviceTimestamp]['value'] 
+                device_timestamp_3 = \
+                    json_obj_3[deviceTimestamp]['value'] 
+                pt_down_graph_to_ofp_2 = int(graph_timestamp_2) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_graph_to_ofp_3 = int(graph_timestamp_3) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_device_to_ofp_2 = int(device_timestamp_2) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_device_to_ofp_3 = int(device_timestamp_3) -\
+                    int(timestamp_begin_pt_down)
+            else:
+                pt_down_graph_to_ofp_2 = 0
+                pt_down_graph_to_ofp_3 = 0
+                pt_down_device_to_ofp_2 = 0
+                pt_down_device_to_ofp_3 = 0
 
-            # Get delta between graph event and OFP
-            pt_down_graph_to_ofp_1 = int( graph_timestamp_1 ) -\
-                int( timestamp_begin_pt_down )
-            pt_down_graph_to_ofp_2 = int( graph_timestamp_2 ) -\
-                int( timestamp_begin_pt_down )
-            pt_down_graph_to_ofp_3 = int( graph_timestamp_3 ) -\
-                int( timestamp_begin_pt_down )
+            if cluster_count >= 5:
+                json_str_up_4 = main.ONOS4cli.topology_events_metrics()
+                json_str_up_5 = main.ONOS5cli.topology_events_metrics()
+                json_obj_4 = json.loads(json_str_up_4)
+                json_obj_5 = json.loads(json_str_up_5)
+                graph_timestamp_4 = \
+                    json_obj_4[graphTimestamp]['value']
+                graph_timestamp_5 = \
+                    json_obj_5[graphTimestamp]['value']
+                device_timestamp_4 = \
+                    json_obj_4[deviceTimestamp]['value'] 
+                device_timestamp_5 = \
+                    json_obj_5[deviceTimestamp]['value'] 
+                pt_down_graph_to_ofp_4 = int(graph_timestamp_4) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_graph_to_ofp_5 = int(graph_timestamp_5) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_device_to_ofp_4 = int(device_timestamp_4) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_device_to_ofp_5 = int(device_timestamp_5) -\
+                    int(timestamp_begin_pt_down)
+            else:
+                pt_down_graph_to_ofp_4 = 0
+                pt_down_graph_to_ofp_5 = 0
+                pt_down_device_to_ofp_4 = 0
+                pt_down_device_to_ofp_5 = 0
 
-            # Get delta between device event and OFP
-            pt_down_device_to_ofp_1 = int( device_timestamp_1 ) -\
-                int( timestamp_begin_pt_down )
-            pt_down_device_to_ofp_2 = int( device_timestamp_2 ) -\
-                int( timestamp_begin_pt_down )
-            pt_down_device_to_ofp_3 = int( device_timestamp_3 ) -\
-                int( timestamp_begin_pt_down )
+            if cluster_count >= 7:
+                json_str_up_6 = main.ONOS6cli.topology_events_metrics()
+                json_str_up_7 = main.ONOS7cli.topology_events_metrics()
+                json_obj_6 = json.loads(json_str_up_6)
+                json_obj_7 = json.loads(json_str_up_7)
+                graph_timestamp_6 = \
+                    json_obj_6[graphTimestamp]['value']
+                graph_timestamp_7 = \
+                    json_obj_7[graphTimestamp]['value']
+                device_timestamp_6 = \
+                    json_obj_6[deviceTimestamp]['value'] 
+                device_timestamp_7 = \
+                    json_obj_7[deviceTimestamp]['value'] 
+                pt_down_graph_to_ofp_6 = int(graph_timestamp_6) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_graph_to_ofp_7 = int(graph_timestamp_7) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_device_to_ofp_6 = int(device_timestamp_6) -\
+                    int(timestamp_begin_pt_down)
+                pt_down_device_to_ofp_7 = int(device_timestamp_7) -\
+                    int(timestamp_begin_pt_down)
+            else:
+                pt_down_graph_to_ofp_6 = 0
+                pt_down_graph_to_ofp_7 = 0
+                pt_down_device_to_ofp_6 = 0
+                pt_down_device_to_ofp_7 = 0
 
-            # Caluclate average across clusters
+            time.sleep(3)
+
+            #Caluclate average across clusters
             pt_down_graph_to_ofp_avg =\
-                ( int( pt_down_graph_to_ofp_1 ) +
-                  int( pt_down_graph_to_ofp_2 ) +
-                  int( pt_down_graph_to_ofp_3 ) ) / 3
+                    (int(pt_down_graph_to_ofp_1) +
+                     int(pt_down_graph_to_ofp_2) + 
+                     int(pt_down_graph_to_ofp_3) +
+                     int(pt_down_graph_to_ofp_4) +
+                     int(pt_down_graph_to_ofp_5) +
+                     int(pt_down_graph_to_ofp_6) +
+                     int(pt_down_graph_to_ofp_7)) / cluster_count 
             pt_down_device_to_ofp_avg = \
-                ( int( pt_down_device_to_ofp_1 ) +
-                  int( pt_down_device_to_ofp_2 ) +
-                  int( pt_down_device_to_ofp_3 ) ) / 3
+                    (int(pt_down_device_to_ofp_1) + 
+                     int(pt_down_device_to_ofp_2) +
+                     int(pt_down_device_to_ofp_3) +
+                     int(pt_down_device_to_ofp_4) +
+                     int(pt_down_device_to_ofp_5) +
+                     int(pt_down_device_to_ofp_6) +
+                     int(pt_down_device_to_ofp_7)) / cluster_count 
 
             if pt_down_graph_to_ofp_avg > down_threshold_min and \
                     pt_down_graph_to_ofp_avg < down_threshold_max:
                 port_down_graph_to_ofp_list.append(
-                    pt_down_graph_to_ofp_avg )
-                main.log.info( "Port down: graph to ofp avg: " +
-                               str( pt_down_graph_to_ofp_avg ) + " ms" )
+                    pt_down_graph_to_ofp_avg)
+                main.log.info("Port down: graph to ofp avg: "+
+                    str(pt_down_graph_to_ofp_avg) + " ms")
             else:
-                main.log.info( "Average port down graph-to-ofp result" +
-                               " exceeded the threshold: " +
-                               str( pt_down_graph_to_ofp_avg ) )
+                main.log.info("Average port down graph-to-ofp result" +
+                        " exceeded the threshold: "+
+                        str(pt_down_graph_to_ofp_avg))
 
             if pt_down_device_to_ofp_avg > 0 and \
                     pt_down_device_to_ofp_avg < 1000:
                 port_down_device_to_ofp_list.append(
-                    pt_down_device_to_ofp_avg )
-                main.log.info( "Port down: device to ofp avg: " +
-                               str( pt_down_device_to_ofp_avg ) + " ms" )
+                    pt_down_device_to_ofp_avg)
+                main.log.info("Port down: device to ofp avg: "+
+                    str(pt_down_device_to_ofp_avg) + " ms")
             else:
-                main.log.info( "Average port down device-to-ofp result" +
-                               " exceeded the threshold: " +
-                               str( pt_down_device_to_ofp_avg ) )
+                main.log.info("Average port down device-to-ofp result" +
+                        " exceeded the threshold: "+
+                        str(pt_down_device_to_ofp_avg))
 
-            # Port up events
-            main.step( "Enable port and obtain timestamp" )
-            main.step( "Starting wireshark capture for port status up" )
-            main.ONOS1.tshark_grep( tshark_port_status, tshark_port_up )
-            time.sleep( 5 )
+            #Port up events 
+            main.step("Enable port and obtain timestamp")
+            main.step("Starting wireshark capture for port status up")
+            main.ONOS1.tshark_grep(tshark_port_status, tshark_port_up)
+            time.sleep(5)
 
-            main.Mininet1.handle.sendline( "sh ifconfig " +
-                                           interface_config + " up" )
-            main.Mininet1.handle.expect( "mininet>" )
-
-            # Allow time for tshark to capture event
-            time.sleep( 3 )
+            main.Mininet1.handle.sendline("sh ifconfig "+
+                    interface_config+" up")
+            main.Mininet1.handle.expect("mininet>")
+            
+            #Allow time for tshark to capture event
+            time.sleep(5)
             main.ONOS1.tshark_stop()
-
-            # Obtain metrics shortly afterwards
-            # This timestsamp captures
-            # the epoch time at which the topology graph was updated.
-            main.step( "Obtain t1 by REST call" )
-            json_str_up_1 = main.ONOS1cli.topology_events_metrics()
-            json_str_up_2 = main.ONOS2cli.topology_events_metrics()
-            json_str_up_3 = main.ONOS3cli.topology_events_metrics()
-
-            json_obj_1 = json.loads( json_str_up_1 )
-            json_obj_2 = json.loads( json_str_up_2 )
-            json_obj_3 = json.loads( json_str_up_3 )
-
-            os.system( "scp " + ONOS_user + "@" + ONOS1_ip + ":" +
-                       tshark_port_up + " /tmp/" )
-
-            f_port_up = open( tshark_port_up, 'r' )
+            
+            time.sleep(3)
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_port_up+" /tmp/")
+            f_port_up = open(tshark_port_up, 'r')
             f_line = f_port_up.readline()
-            obj_up = f_line.split( " " )
-            if len( f_line ) > 0:
-                timestamp_begin_pt_up = int( float( obj_up[ 1 ] ) * 1000 )
-                main.log.info( "Port up begin timestamp: " +
-                               str( timestamp_begin_pt_up ) )
+            obj_up = f_line.split(" ")
+            if len(f_line) > 0:
+                timestamp_begin_pt_up = int(float(obj_up[1])*1000)
+                if timestamp_begin_pt_up < 1400000000000:
+                    timestamp_begin_pt_up = \
+                        int(float(obj_up[2])*1000)
+                main.log.info("Port up begin timestamp: "+
+                        str(timestamp_begin_pt_up))
             else:
-                main.log.info( "Tshark output file returned unexpected" +
-                               " results." )
+                main.log.info("Tshark output file returned unexpected"+
+                        " results.")
                 timestamp_begin_pt_up = 0
-
             f_port_up.close()
 
+            #Obtain metrics shortly afterwards
+            #This timestsamp captures
+            #the epoch time at which the topology graph was updated.
+            main.step("Obtain t1 by REST call")
+            json_str_up_1 = main.ONOS1cli.topology_events_metrics()
+            json_obj_1 = json.loads(json_str_up_1)
             graph_timestamp_1 = \
-                json_obj_1[ graphTimestamp ][ 'value' ]
-            graph_timestamp_2 = \
-                json_obj_2[ graphTimestamp ][ 'value' ]
-            graph_timestamp_3 = \
-                json_obj_3[ graphTimestamp ][ 'value' ]
-
-            # Obtain device timestamp. This timestamp captures
-            # the epoch time at which the device event happened
+                    json_obj_1[graphTimestamp]['value']
+            #Obtain device timestamp. This timestamp captures
+            #the epoch time at which the device event happened
             device_timestamp_1 = \
-                json_obj_1[ deviceTimestamp ][ 'value' ]
-            device_timestamp_2 = \
-                json_obj_2[ deviceTimestamp ][ 'value' ]
-            device_timestamp_3 = \
-                json_obj_3[ deviceTimestamp ][ 'value' ]
+                    json_obj_1[deviceTimestamp]['value'] 
+            #Get delta between graph event and OFP 
+            pt_up_graph_to_ofp_1 = int(graph_timestamp_1) -\
+                    int(timestamp_begin_pt_up)
+            #Get delta between device event and OFP
+            pt_up_device_to_ofp_1 = int(device_timestamp_1) -\
+                    int(timestamp_begin_pt_up)
+            
+            if cluster_count >= 3:
+                json_str_up_2 = main.ONOS2cli.topology_events_metrics()
+                json_str_up_3 = main.ONOS3cli.topology_events_metrics()
+                json_obj_2 = json.loads(json_str_up_2)
+                json_obj_3 = json.loads(json_str_up_3)
+                graph_timestamp_2 = \
+                    json_obj_2[graphTimestamp]['value']
+                graph_timestamp_3 = \
+                    json_obj_3[graphTimestamp]['value']
+                device_timestamp_2 = \
+                    json_obj_2[deviceTimestamp]['value'] 
+                device_timestamp_3 = \
+                    json_obj_3[deviceTimestamp]['value'] 
+                pt_up_graph_to_ofp_2 = int(graph_timestamp_2) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_graph_to_ofp_3 = int(graph_timestamp_3) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_device_to_ofp_2 = int(device_timestamp_2) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_device_to_ofp_3 = int(device_timestamp_3) -\
+                    int(timestamp_begin_pt_up)
+            else:
+                pt_up_graph_to_ofp_2 = 0
+                pt_up_graph_to_ofp_3 = 0
+                pt_up_device_to_ofp_2 = 0
+                pt_up_device_to_ofp_3 = 0
+            
+            if cluster_count >= 5:
+                json_str_up_4 = main.ONOS4cli.topology_events_metrics()
+                json_str_up_5 = main.ONOS5cli.topology_events_metrics()
+                json_obj_4 = json.loads(json_str_up_4)
+                json_obj_5 = json.loads(json_str_up_5)
+                graph_timestamp_4 = \
+                    json_obj_4[graphTimestamp]['value']
+                graph_timestamp_5 = \
+                    json_obj_5[graphTimestamp]['value']
+                device_timestamp_4 = \
+                    json_obj_4[deviceTimestamp]['value'] 
+                device_timestamp_5 = \
+                    json_obj_5[deviceTimestamp]['value'] 
+                pt_up_graph_to_ofp_4 = int(graph_timestamp_4) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_graph_to_ofp_5 = int(graph_timestamp_5) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_device_to_ofp_4 = int(device_timestamp_4) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_device_to_ofp_5 = int(device_timestamp_5) -\
+                    int(timestamp_begin_pt_up)
+            else:
+                pt_up_graph_to_ofp_4 = 0
+                pt_up_graph_to_ofp_5 = 0
+                pt_up_device_to_ofp_4 = 0
+                pt_up_device_to_ofp_5 = 0
 
-            # Get delta between graph event and OFP
-            pt_up_graph_to_ofp_1 = int( graph_timestamp_1 ) -\
-                int( timestamp_begin_pt_up )
-            pt_up_graph_to_ofp_2 = int( graph_timestamp_2 ) -\
-                int( timestamp_begin_pt_up )
-            pt_up_graph_to_ofp_3 = int( graph_timestamp_3 ) -\
-                int( timestamp_begin_pt_up )
-
-            # Get delta between device event and OFP
-            pt_up_device_to_ofp_1 = int( device_timestamp_1 ) -\
-                int( timestamp_begin_pt_up )
-            pt_up_device_to_ofp_2 = int( device_timestamp_2 ) -\
-                int( timestamp_begin_pt_up )
-            pt_up_device_to_ofp_3 = int( device_timestamp_3 ) -\
-                int( timestamp_begin_pt_up )
-
-            main.log.info( "ONOS1 delta G2O: " + str( pt_up_graph_to_ofp_1 ) )
-            main.log.info( "ONOS2 delta G2O: " + str( pt_up_graph_to_ofp_2 ) )
-            main.log.info( "ONOS3 delta G2O: " + str( pt_up_graph_to_ofp_3 ) )
-
-            main.log.info( "ONOS1 delta D2O: " + str( pt_up_device_to_ofp_1 ) )
-            main.log.info( "ONOS2 delta D2O: " + str( pt_up_device_to_ofp_2 ) )
-            main.log.info( "ONOS3 delta D2O: " + str( pt_up_device_to_ofp_3 ) )
+            if cluster_count >= 7:
+                json_str_up_6 = main.ONOS6cli.topology_events_metrics()
+                json_str_up_7 = main.ONOS7cli.topology_events_metrics()
+                json_obj_6 = json.loads(json_str_up_6)
+                json_obj_7 = json.loads(json_str_up_7)
+                graph_timestamp_6 = \
+                    json_obj_6[graphTimestamp]['value']
+                graph_timestamp_7 = \
+                    json_obj_7[graphTimestamp]['value']
+                device_timestamp_6 = \
+                    json_obj_6[deviceTimestamp]['value'] 
+                device_timestamp_7 = \
+                    json_obj_7[deviceTimestamp]['value'] 
+                pt_up_graph_to_ofp_6 = int(graph_timestamp_6) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_graph_to_ofp_7 = int(graph_timestamp_7) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_device_to_ofp_6 = int(device_timestamp_6) -\
+                    int(timestamp_begin_pt_up)
+                pt_up_device_to_ofp_7 = int(device_timestamp_7) -\
+                    int(timestamp_begin_pt_up)
+            else:
+                pt_up_graph_to_ofp_6 = 0
+                pt_up_graph_to_ofp_7 = 0
+                pt_up_device_to_ofp_6 = 0
+                pt_up_device_to_ofp_7 = 0
 
             pt_up_graph_to_ofp_avg = \
-                ( int( pt_up_graph_to_ofp_1 ) +
-                  int( pt_up_graph_to_ofp_2 ) +
-                  int( pt_up_graph_to_ofp_3 ) ) / 3
+                    (int(pt_up_graph_to_ofp_1) + 
+                     int(pt_up_graph_to_ofp_2) +
+                     int(pt_up_graph_to_ofp_3) +
+                     int(pt_up_graph_to_ofp_4) +
+                     int(pt_up_graph_to_ofp_5) +
+                     int(pt_up_graph_to_ofp_6) +
+                     int(pt_up_graph_to_ofp_7)) / cluster_count 
 
             pt_up_device_to_ofp_avg = \
-                ( int( pt_up_device_to_ofp_1 ) +
-                  int( pt_up_device_to_ofp_2 ) +
-                  int( pt_up_device_to_ofp_3 ) ) / 3
+                    (int(pt_up_device_to_ofp_1) + 
+                     int(pt_up_device_to_ofp_2) +
+                     int(pt_up_device_to_ofp_3) +
+                     int(pt_up_device_to_ofp_4) +
+                     int(pt_up_device_to_ofp_5) +
+                     int(pt_up_device_to_ofp_6) +
+                     int(pt_up_device_to_ofp_7)) / cluster_count 
 
             if pt_up_graph_to_ofp_avg > up_threshold_min and \
-                    pt_up_graph_to_ofp_avg < up_threshold_max:
+                    pt_up_graph_to_ofp_avg < up_threshold_max: 
                 port_up_graph_to_ofp_list.append(
-                    pt_up_graph_to_ofp_avg )
-                main.log.info( "Port down: graph to ofp avg: " +
-                               str( pt_up_graph_to_ofp_avg ) + " ms" )
+                        pt_up_graph_to_ofp_avg)
+                main.log.info("Port down: graph to ofp avg: "+
+                    str(pt_up_graph_to_ofp_avg) + " ms")
             else:
-                main.log.info( "Average port up graph-to-ofp result" +
-                               " exceeded the threshold: " +
-                               str( pt_up_graph_to_ofp_avg ) )
-
+                main.log.info("Average port up graph-to-ofp result"+
+                        " exceeded the threshold: "+
+                        str(pt_up_graph_to_ofp_avg))
+            
             if pt_up_device_to_ofp_avg > up_threshold_min and \
                     pt_up_device_to_ofp_avg < up_threshold_max:
                 port_up_device_to_ofp_list.append(
-                    pt_up_device_to_ofp_avg )
-                main.log.info( "Port up: device to ofp avg: " +
-                               str( pt_up_device_to_ofp_avg ) + " ms" )
+                        pt_up_device_to_ofp_avg)
+                main.log.info("Port up: device to ofp avg: "+
+                    str(pt_up_device_to_ofp_avg) + " ms")
             else:
-                main.log.info( "Average port up device-to-ofp result" +
-                               " exceeded the threshold: " +
-                               str( pt_up_device_to_ofp_avg ) )
-
-            # END ITERATION FOR LOOP
-
-        # Check all list for latency existence and set assertion
-        if ( port_down_graph_to_ofp_list and port_down_device_to_ofp_list
-                and port_up_graph_to_ofp_list and port_up_device_to_ofp_list ):
+                main.log.info("Average port up device-to-ofp result"+
+                        " exceeded the threshold: "+
+                        str(pt_up_device_to_ofp_avg))
+            
+            #END ITERATION FOR LOOP
+        
+        #Check all list for latency existence and set assertion
+        if (port_down_graph_to_ofp_list and port_down_device_to_ofp_list\
+           and port_up_graph_to_ofp_list and port_up_device_to_ofp_list):
             assertion = main.TRUE
-
-        # Calculate and report latency measurements
-        port_down_graph_to_ofp_min = min( port_down_graph_to_ofp_list )
-        port_down_graph_to_ofp_max = max( port_down_graph_to_ofp_list )
+        
+        main.log.report("Cluster size: "+str(cluster_count)+\
+                " node(s)")
+        #Calculate and report latency measurements
+        port_down_graph_to_ofp_min = min(port_down_graph_to_ofp_list)
+        port_down_graph_to_ofp_max = max(port_down_graph_to_ofp_list)
         port_down_graph_to_ofp_avg = \
-            ( sum( port_down_graph_to_ofp_list ) /
-              len( port_down_graph_to_ofp_list ) )
+                (sum(port_down_graph_to_ofp_list) / 
+                 len(port_down_graph_to_ofp_list))
         port_down_graph_to_ofp_std_dev = \
-            str( round( numpy.std( port_down_graph_to_ofp_list ), 1 ) )
-
-        main.log.report(
-            "Port down graph-to-ofp " +
-            "Avg: " +
-            str( port_down_graph_to_ofp_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            port_down_graph_to_ofp_std_dev +
-            " ms" )
-
-        port_down_device_to_ofp_min = min( port_down_device_to_ofp_list )
-        port_down_device_to_ofp_max = max( port_down_device_to_ofp_list )
+                str(round(numpy.std(port_down_graph_to_ofp_list),1))
+        
+        main.log.report("Port down graph-to-ofp "+
+                "Avg: "+str(port_down_graph_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_down_graph_to_ofp_std_dev+" ms")
+        
+        port_down_device_to_ofp_min = min(port_down_device_to_ofp_list)
+        port_down_device_to_ofp_max = max(port_down_device_to_ofp_list)
         port_down_device_to_ofp_avg = \
-            ( sum( port_down_device_to_ofp_list ) /
-              len( port_down_device_to_ofp_list ) )
+                (sum(port_down_device_to_ofp_list) /\
+                 len(port_down_device_to_ofp_list))
         port_down_device_to_ofp_std_dev = \
-            str( round( numpy.std( port_down_device_to_ofp_list ), 1 ) )
-
-        main.log.report(
-            "Port down device-to-ofp " +
-            "Avg: " +
-            str( port_down_device_to_ofp_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            port_down_device_to_ofp_std_dev +
-            " ms" )
-
-        port_up_graph_to_ofp_min = min( port_up_graph_to_ofp_list )
-        port_up_graph_to_ofp_max = max( port_up_graph_to_ofp_list )
+                str(round(numpy.std(port_down_device_to_ofp_list),1))
+        
+        main.log.report("Port down device-to-ofp "+
+                "Avg: "+str(port_down_device_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_down_device_to_ofp_std_dev+" ms")
+        
+        port_up_graph_to_ofp_min = min(port_up_graph_to_ofp_list)
+        port_up_graph_to_ofp_max = max(port_up_graph_to_ofp_list)
         port_up_graph_to_ofp_avg = \
-            ( sum( port_up_graph_to_ofp_list ) /
-              len( port_up_graph_to_ofp_list ) )
+                (sum(port_up_graph_to_ofp_list) /\
+                 len(port_up_graph_to_ofp_list))
         port_up_graph_to_ofp_std_dev = \
-            str( round( numpy.std( port_up_graph_to_ofp_list ), 1 ) )
-
-        main.log.report(
-            "Port up graph-to-ofp " +
-            "Avg: " +
-            str( port_up_graph_to_ofp_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            port_up_graph_to_ofp_std_dev +
-            " ms" )
-
-        port_up_device_to_ofp_min = min( port_up_device_to_ofp_list )
-        port_up_device_to_ofp_max = max( port_up_device_to_ofp_list )
+                str(round(numpy.std(port_up_graph_to_ofp_list),1))
+        
+        main.log.report("Port up graph-to-ofp "+
+                "Avg: "+str(port_up_graph_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_up_graph_to_ofp_std_dev+" ms")
+          
+        port_up_device_to_ofp_min = min(port_up_device_to_ofp_list)
+        port_up_device_to_ofp_max = max(port_up_device_to_ofp_list)
         port_up_device_to_ofp_avg = \
-            ( sum( port_up_device_to_ofp_list ) /
-              len( port_up_device_to_ofp_list ) )
+                (sum(port_up_device_to_ofp_list) /\
+                 len(port_up_device_to_ofp_list))
         port_up_device_to_ofp_std_dev = \
-            str( round( numpy.std( port_up_device_to_ofp_list ), 1 ) )
+                str(round(numpy.std(port_up_device_to_ofp_list),1))
+        
+        main.log.report("Port up device-to-ofp "+
+                "Avg: "+str(port_up_device_to_ofp_avg)+" ms "+
+                "Std Deviation: "+port_up_device_to_ofp_std_dev+" ms")
 
-        main.log.report(
-            "Port up device-to-ofp " +
-            "Avg: " +
-            str( port_up_device_to_ofp_avg ) +
-            " ms " +
-            "Std Deviation: " +
-            port_up_device_to_ofp_std_dev +
-            " ms" )
+        #Remove switches from controller for next test
+        main.Mininet1.delete_sw_controller("s1")
+        main.Mininet1.delete_sw_controller("s2")
+        
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+                onpass="Port discovery latency calculation successful",
+                onfail="Port discovery test failed")
 
-        utilities.assert_equals(
-            expect=main.TRUE,
-            actual=assertion,
-            onpass="Port discovery latency calculation successful",
-            onfail="Port discovery test failed" )
-
-    def CASE4( self, main ):
-        """
+    def CASE4(self, main):
+        '''
         Link down event using loss rate 100%
-
+        
         Important:
             Use a simple 2 switch topology with 1 link between
-            the two switches. Ensure that mac addresses of the
+            the two switches. Ensure that mac addresses of the 
             switches are 1 / 2 respectively
-        """
+        '''
         import time
         import subprocess
         import os
         import requests
         import json
-        import numpy
+        import numpy 
+    
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS_user = main.params['CTRL']['user']
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        default_sw_port = main.params['CTRL']['port1']
+       
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+       
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        linkTimestamp = main.params['JSON']['linkTimestamp'] 
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+        
+        debug_mode = main.params['TEST']['debugMode']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
-
-        # Number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-
-        # Timestamp 'keys' for json metrics output.
-        # These are subject to change, hence moved into params
-        deviceTimestamp = main.params[ 'JSON' ][ 'deviceTimestamp' ]
-        linkTimestamp = main.params[ 'JSON' ][ 'linkTimestamp' ]
-        graphTimestamp = main.params[ 'JSON' ][ 'graphTimestamp' ]
-
-        debug_mode = main.params[ 'TEST' ][ 'debugMode' ]
-
-        local_time = time.strftime( '%x %X' )
-        local_time = local_time.replace( "/", "" )
-        local_time = local_time.replace( " ", "_" )
-        local_time = local_time.replace( ":", "" )
+        local_time = time.strftime('%x %X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
         if debug_mode == 'on':
-            main.ONOS1.tshark_pcap( "eth0",
-                                    "/tmp/link_lat_pcap_" + local_time )
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/link_lat_pcap_"+local_time) 
 
-        # Threshold for this test case
-        up_threshold_str = main.params[ 'TEST' ][ 'linkUpThreshold' ]
-        down_threshold_str = main.params[ 'TEST' ][ 'linkDownThreshold' ]
+        #Threshold for this test case
+        up_threshold_str = main.params['TEST']['linkUpThreshold']
+        down_threshold_str = main.params['TEST']['linkDownThreshold']
 
-        up_threshold_obj = up_threshold_str.split( "," )
-        down_threshold_obj = down_threshold_str.split( "," )
+        up_threshold_obj = up_threshold_str.split(",")
+        down_threshold_obj = down_threshold_str.split(",")
 
-        up_threshold_min = int( up_threshold_obj[ 0 ] )
-        up_threshold_max = int( up_threshold_obj[ 1 ] )
+        up_threshold_min = int(up_threshold_obj[0])
+        up_threshold_max = int(up_threshold_obj[1])
 
-        down_threshold_min = int( down_threshold_obj[ 0 ] )
-        down_threshold_max = int( down_threshold_obj[ 1 ] )
+        down_threshold_min = int(down_threshold_obj[0])
+        down_threshold_max = int(down_threshold_obj[1])
 
         assertion = main.TRUE
-        # Link event timestamp to system time list
+        #Link event timestamp to system time list
         link_down_link_to_system_list = []
         link_up_link_to_system_list = []
-        # Graph event timestamp to system time list
+        #Graph event timestamp to system time list
         link_down_graph_to_system_list = []
-        link_up_graph_to_system_list = []
+        link_up_graph_to_system_list = [] 
 
-        main.log.report( "Link up / down discovery latency between " +
-                         "two switches" )
-        main.log.report( "Simulated by setting loss-rate 100%" )
-        main.log.report( "'tc qdisc add dev <intfs> root netem loss 100%'" )
-        main.log.report( "Total iterations of test: " + str( num_iter ) )
+        main.log.report("Link up / down discovery latency between "+
+                "two switches")
+        main.log.report("Simulated by setting loss-rate 100%")
+        main.log.report("'tc qdisc add dev <intfs> root netem loss 100%'") 
+        main.log.report("Total iterations of test: "+str(num_iter))
 
-        main.step( "Assign all switches" )
-        main.Mininet1.assign_sw_controller(
-            sw="1",
-            ip1=ONOS1_ip,
-            port1=default_sw_port )
-        main.Mininet1.assign_sw_controller(
-            sw="2",
-            ip1=ONOS1_ip,
-            port1=default_sw_port )
+        main.step("Assign all switches")
+        main.Mininet1.assign_sw_controller(sw="1",
+                ip1=ONOS1_ip, port1=default_sw_port)
+        main.Mininet1.assign_sw_controller(sw="2",
+                ip1=ONOS1_ip, port1=default_sw_port)
 
-        main.step( "Verifying switch assignment" )
-        result_s1 = main.Mininet1.get_sw_controller( sw="s1" )
-        result_s2 = main.Mininet1.get_sw_controller( sw="s2" )
-
-        # Allow time for events to finish before taking measurements
-        time.sleep( 10 )
+        main.step("Verifying switch assignment")
+        result_s1 = main.Mininet1.get_sw_controller(sw="s1")
+        result_s2 = main.Mininet1.get_sw_controller(sw="s2")
+          
+        #Allow time for events to finish before taking measurements
+        time.sleep(10)
 
         link_down1 = False
         link_down2 = False
         link_down3 = False
-        # Start iteration of link event test
-        for i in range( 0, int( num_iter ) ):
-            main.step( "Getting initial system time as t0" )
-
+        #Start iteration of link event test
+        for i in range(0, int(num_iter)):
+            main.step("Getting initial system time as t0")
+        
+            #System time in epoch ms
             timestamp_link_down_t0 = time.time() * 1000
-            # Link down is simulated by 100% loss rate using traffic
-            # control command
+            #Link down is simulated by 100% loss rate using traffic 
+            #control command
             main.Mininet1.handle.sendline(
-                "sh tc qdisc add dev s1-eth1 root netem loss 100%" )
+                    "sh tc qdisc add dev s1-eth1 root netem loss 100%")
 
-            # TODO: Iterate through 'links' command to verify that
-            #      link s1 -> s2 went down ( loop timeout 30 seconds )
+            #TODO: Iterate through 'links' command to verify that
+            #      link s1 -> s2 went down (loop timeout 30 seconds) 
             #      on all 3 ONOS instances
-            main.log.info( "Checking ONOS for link update" )
+            main.log.info("Checking ONOS for link update")
             loop_count = 0
-            while( not ( link_down1 and link_down2 and link_down3 )
+            while( not (link_down1 and link_down2 and link_down3)\
                     and loop_count < 30 ):
                 json_str1 = main.ONOS1cli.links()
                 json_str2 = main.ONOS2cli.links()
                 json_str3 = main.ONOS3cli.links()
-
-                if not ( json_str1 and json_str2 and json_str3 ):
-                    main.log.error( "CLI command returned error " )
+                
+                if not (json_str1 and json_str2 and json_str3):
+                    main.log.error("CLI command returned error ")
                     break
                 else:
-                    json_obj1 = json.loads( json_str1 )
-                    json_obj2 = json.loads( json_str2 )
-                    json_obj3 = json.loads( json_str3 )
+                    json_obj1 = json.loads(json_str1)
+                    json_obj2 = json.loads(json_str2)
+                    json_obj3 = json.loads(json_str3)
                 for obj1 in json_obj1:
-                    if '01' not in obj1[ 'src' ][ 'device' ]:
+                    if '01' not in obj1['src']['device']:
                         link_down1 = True
-                        main.log.info( "Link down from " +
-                                       "s1 -> s2 on ONOS1 detected" )
+                        main.log.info("Link down from "+
+                                "s1 -> s2 on ONOS1 detected")
                 for obj2 in json_obj2:
-                    if '01' not in obj2[ 'src' ][ 'device' ]:
+                    if '01' not in obj2['src']['device']:
                         link_down2 = True
-                        main.log.info( "Link down from " +
-                                       "s1 -> s2 on ONOS2 detected" )
+                        main.log.info("Link down from "+
+                                "s1 -> s2 on ONOS2 detected")
                 for obj3 in json_obj3:
-                    if '01' not in obj3[ 'src' ][ 'device' ]:
+                    if '01' not in obj3['src']['device']:
                         link_down3 = True
-                        main.log.info( "Link down from " +
-                                       "s1 -> s2 on ONOS3 detected" )
-
+                        main.log.info("Link down from "+
+                                "s1 -> s2 on ONOS3 detected")
+                
                 loop_count += 1
-                # If CLI doesn't like the continuous requests
-                # and exits in this loop, increase the sleep here.
-                # Consequently, while loop timeout will increase
-                time.sleep( 1 )
-
-            # Give time for metrics measurement to catch up
-            # NOTE: May need to be configured more accurately
-            time.sleep( 10 )
-            # If we exited the while loop and link down 1,2,3 are still
-            # false, then ONOS has failed to discover link down event
-            if not ( link_down1 and link_down2 and link_down3 ):
-                main.log.info( "Link down discovery failed" )
-
+                #If CLI doesn't like the continuous requests
+                #and exits in this loop, increase the sleep here.
+                #Consequently, while loop timeout will increase
+                time.sleep(1)
+    
+            #Give time for metrics measurement to catch up
+            #NOTE: May need to be configured more accurately
+            time.sleep(10)
+            #If we exited the while loop and link down 1,2,3 are still 
+            #false, then ONOS has failed to discover link down event
+            if not (link_down1 and link_down2 and link_down3):
+                main.log.info("Link down discovery failed")
+                
                 link_down_lat_graph1 = 0
                 link_down_lat_graph2 = 0
                 link_down_lat_graph3 = 0
                 link_down_lat_device1 = 0
                 link_down_lat_device2 = 0
                 link_down_lat_device3 = 0
-
+                
                 assertion = main.FALSE
             else:
                 json_topo_metrics_1 =\
-                    main.ONOS1cli.topology_events_metrics()
+                        main.ONOS1cli.topology_events_metrics()
                 json_topo_metrics_2 =\
-                    main.ONOS2cli.topology_events_metrics()
+                        main.ONOS2cli.topology_events_metrics()
                 json_topo_metrics_3 =\
-                    main.ONOS3cli.topology_events_metrics()
-                json_topo_metrics_1 = json.loads( json_topo_metrics_1 )
-                json_topo_metrics_2 = json.loads( json_topo_metrics_2 )
-                json_topo_metrics_3 = json.loads( json_topo_metrics_3 )
+                        main.ONOS3cli.topology_events_metrics()
+                json_topo_metrics_1 = json.loads(json_topo_metrics_1)
+                json_topo_metrics_2 = json.loads(json_topo_metrics_2)
+                json_topo_metrics_3 = json.loads(json_topo_metrics_3)
 
-                main.log.info( "Obtaining graph and device timestamp" )
+                main.log.info("Obtaining graph and device timestamp")
                 graph_timestamp_1 = \
-                    json_topo_metrics_1[ graphTimestamp ][ 'value' ]
+                    json_topo_metrics_1[graphTimestamp]['value']
                 graph_timestamp_2 = \
-                    json_topo_metrics_2[ graphTimestamp ][ 'value' ]
+                    json_topo_metrics_2[graphTimestamp]['value']
                 graph_timestamp_3 = \
-                    json_topo_metrics_3[ graphTimestamp ][ 'value' ]
+                    json_topo_metrics_3[graphTimestamp]['value']
 
                 link_timestamp_1 = \
-                    json_topo_metrics_1[ linkTimestamp ][ 'value' ]
+                    json_topo_metrics_1[linkTimestamp]['value']
                 link_timestamp_2 = \
-                    json_topo_metrics_2[ linkTimestamp ][ 'value' ]
+                    json_topo_metrics_2[linkTimestamp]['value']
                 link_timestamp_3 = \
-                    json_topo_metrics_3[ linkTimestamp ][ 'value' ]
+                    json_topo_metrics_3[linkTimestamp]['value']
 
                 if graph_timestamp_1 and graph_timestamp_2 and\
                         graph_timestamp_3 and link_timestamp_1 and\
                         link_timestamp_2 and link_timestamp_3:
-                    link_down_lat_graph1 = int( graph_timestamp_1 ) -\
-                        int( timestamp_link_down_t0 )
-                    link_down_lat_graph2 = int( graph_timestamp_2 ) -\
-                        int( timestamp_link_down_t0 )
-                    link_down_lat_graph3 = int( graph_timestamp_3 ) -\
-                        int( timestamp_link_down_t0 )
-
-                    link_down_lat_link1 = int( link_timestamp_1 ) -\
-                        int( timestamp_link_down_t0 )
-                    link_down_lat_link2 = int( link_timestamp_2 ) -\
-                        int( timestamp_link_down_t0 )
-                    link_down_lat_link3 = int( link_timestamp_3 ) -\
-                        int( timestamp_link_down_t0 )
+                    link_down_lat_graph1 = int(graph_timestamp_1) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_graph2 = int(graph_timestamp_2) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_graph3 = int(graph_timestamp_3) -\
+                            int(timestamp_link_down_t0)
+                
+                    link_down_lat_link1 = int(link_timestamp_1) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_link2 = int(link_timestamp_2) -\
+                            int(timestamp_link_down_t0)
+                    link_down_lat_link3 = int(link_timestamp_3) -\
+                            int(timestamp_link_down_t0)
                 else:
-                    main.log.error( "There was an error calculating" +
-                                    " the delta for link down event" )
+                    main.log.error("There was an error calculating"+
+                        " the delta for link down event")
                     link_down_lat_graph1 = 0
                     link_down_lat_graph2 = 0
                     link_down_lat_graph3 = 0
-
+                    
                     link_down_lat_device1 = 0
                     link_down_lat_device2 = 0
                     link_down_lat_device3 = 0
-
-            main.log.info( "Link down latency ONOS1 iteration " +
-                           str( i ) + " (end-to-end): " +
-                           str( link_down_lat_graph1 ) + " ms" )
-            main.log.info( "Link down latency ONOS2 iteration " +
-                           str( i ) + " (end-to-end): " +
-                           str( link_down_lat_graph2 ) + " ms" )
-            main.log.info( "Link down latency ONOS3 iteration " +
-                           str( i ) + " (end-to-end): " +
-                           str( link_down_lat_graph3 ) + " ms" )
-
-            main.log.info( "Link down latency ONOS1 iteration " +
-                           str( i ) + " (link-event-to-system-timestamp): " +
-                           str( link_down_lat_link1 ) + " ms" )
-            main.log.info( "Link down latency ONOS2 iteration " +
-                           str( i ) + " (link-event-to-system-timestamp): " +
-                           str( link_down_lat_link2 ) + " ms" )
-            main.log.info( "Link down latency ONOS3 iteration " +
-                           str( i ) + " (link-event-to-system-timestamp): " +
-                           str( link_down_lat_link3 ) )
-
-            # Calculate avg of node calculations
+        
+            main.log.info("Link down latency ONOS1 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_down_lat_graph1)+" ms")
+            main.log.info("Link down latency ONOS2 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_down_lat_graph2)+" ms")
+            main.log.info("Link down latency ONOS3 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_down_lat_graph3)+" ms")
+            
+            main.log.info("Link down latency ONOS1 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_down_lat_link1)+" ms")
+            main.log.info("Link down latency ONOS2 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_down_lat_link2)+" ms")
+            main.log.info("Link down latency ONOS3 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_down_lat_link3))
+      
+            #Calculate avg of node calculations
             link_down_lat_graph_avg =\
-                ( link_down_lat_graph1 +
-                  link_down_lat_graph2 +
-                  link_down_lat_graph3 ) / 3
+                    (link_down_lat_graph1 +
+                     link_down_lat_graph2 +
+                     link_down_lat_graph3) / 3
             link_down_lat_link_avg =\
-                ( link_down_lat_link1 +
-                  link_down_lat_link2 +
-                  link_down_lat_link3 ) / 3
+                    (link_down_lat_link1 +
+                     link_down_lat_link2 +
+                     link_down_lat_link3) / 3
 
-            # Set threshold and append latency to list
+            #Set threshold and append latency to list
             if link_down_lat_graph_avg > down_threshold_min and\
                link_down_lat_graph_avg < down_threshold_max:
                 link_down_graph_to_system_list.append(
-                    link_down_lat_graph_avg )
+                        link_down_lat_graph_avg)
             else:
-                main.log.info( "Link down latency exceeded threshold" )
-                main.log.info( "Results for iteration " + str( i ) +
-                               "have been omitted" )
+                main.log.info("Link down latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
             if link_down_lat_link_avg > down_threshold_min and\
                link_down_lat_link_avg < down_threshold_max:
                 link_down_link_to_system_list.append(
-                    link_down_lat_link_avg )
+                        link_down_lat_link_avg)
             else:
-                main.log.info( "Link down latency exceeded threshold" )
-                main.log.info( "Results for iteration " + str( i ) +
-                               "have been omitted" )
+                main.log.info("Link down latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
 
-            # NOTE: To remove loss rate and measure latency:
+            #NOTE: To remove loss rate and measure latency:
             #       'sh tc qdisc del dev s1-eth1 root'
             timestamp_link_up_t0 = time.time() * 1000
-            main.Mininet1.handle.sendline( "sh tc qdisc del dev " +
-                                           "s1-eth1 root" )
-            main.Mininet1.handle.expect( "mininet>" )
-
-            main.log.info( "Checking ONOS for link update" )
-
+            main.Mininet1.handle.sendline("sh tc qdisc del dev "+
+                    "s1-eth1 root")
+            main.Mininet1.handle.expect("mininet>")
+            
+            main.log.info("Checking ONOS for link update")
+            
             link_down1 = True
             link_down2 = True
             link_down3 = True
             loop_count = 0
-            while( ( link_down1 and link_down2 and link_down3 )
+            while( (link_down1 and link_down2 and link_down3)\
                     and loop_count < 30 ):
                 json_str1 = main.ONOS1cli.links()
                 json_str2 = main.ONOS2cli.links()
                 json_str3 = main.ONOS3cli.links()
-                if not ( json_str1 and json_str2 and json_str3 ):
-                    main.log.error( "CLI command returned error " )
+                if not (json_str1 and json_str2 and json_str3):
+                    main.log.error("CLI command returned error ")
                     break
                 else:
-                    json_obj1 = json.loads( json_str1 )
-                    json_obj2 = json.loads( json_str2 )
-                    json_obj3 = json.loads( json_str3 )
-
+                    json_obj1 = json.loads(json_str1)
+                    json_obj2 = json.loads(json_str2)
+                    json_obj3 = json.loads(json_str3)
+                
                 for obj1 in json_obj1:
-                    if '01' in obj1[ 'src' ][ 'device' ]:
-                        link_down1 = False
-                        main.log.info( "Link up from " +
-                                       "s1 -> s2 on ONOS1 detected" )
+                    if '01' in obj1['src']['device']:
+                        link_down1 = False 
+                        main.log.info("Link up from "+
+                            "s1 -> s2 on ONOS1 detected")
                 for obj2 in json_obj2:
-                    if '01' in obj2[ 'src' ][ 'device' ]:
-                        link_down2 = False
-                        main.log.info( "Link up from " +
-                                       "s1 -> s2 on ONOS2 detected" )
+                    if '01' in obj2['src']['device']:
+                        link_down2 = False 
+                        main.log.info("Link up from "+
+                            "s1 -> s2 on ONOS2 detected")
                 for obj3 in json_obj3:
-                    if '01' in obj3[ 'src' ][ 'device' ]:
-                        link_down3 = False
-                        main.log.info( "Link up from " +
-                                       "s1 -> s2 on ONOS3 detected" )
-
+                    if '01' in obj3['src']['device']:
+                        link_down3 = False 
+                        main.log.info("Link up from "+
+                            "s1 -> s2 on ONOS3 detected")
+                
                 loop_count += 1
-                time.sleep( 1 )
-
-            if ( link_down1 and link_down2 and link_down3 ):
-                main.log.info( "Link up discovery failed" )
-
+                time.sleep(1)
+            
+            if (link_down1 and link_down2 and link_down3):
+                main.log.info("Link up discovery failed")
+                
                 link_up_lat_graph1 = 0
                 link_up_lat_graph2 = 0
                 link_up_lat_graph3 = 0
                 link_up_lat_device1 = 0
                 link_up_lat_device2 = 0
                 link_up_lat_device3 = 0
-
+                
                 assertion = main.FALSE
             else:
                 json_topo_metrics_1 =\
-                    main.ONOS1cli.topology_events_metrics()
+                        main.ONOS1cli.topology_events_metrics()
                 json_topo_metrics_2 =\
-                    main.ONOS2cli.topology_events_metrics()
+                        main.ONOS2cli.topology_events_metrics()
                 json_topo_metrics_3 =\
-                    main.ONOS3cli.topology_events_metrics()
-                json_topo_metrics_1 = json.loads( json_topo_metrics_1 )
-                json_topo_metrics_2 = json.loads( json_topo_metrics_2 )
-                json_topo_metrics_3 = json.loads( json_topo_metrics_3 )
+                        main.ONOS3cli.topology_events_metrics()
+                json_topo_metrics_1 = json.loads(json_topo_metrics_1)
+                json_topo_metrics_2 = json.loads(json_topo_metrics_2)
+                json_topo_metrics_3 = json.loads(json_topo_metrics_3)
 
-                main.log.info( "Obtaining graph and device timestamp" )
+                main.log.info("Obtaining graph and device timestamp")
                 graph_timestamp_1 = \
-                    json_topo_metrics_1[ graphTimestamp ][ 'value' ]
+                    json_topo_metrics_1[graphTimestamp]['value']
                 graph_timestamp_2 = \
-                    json_topo_metrics_2[ graphTimestamp ][ 'value' ]
+                    json_topo_metrics_2[graphTimestamp]['value']
                 graph_timestamp_3 = \
-                    json_topo_metrics_3[ graphTimestamp ][ 'value' ]
+                    json_topo_metrics_3[graphTimestamp]['value']
 
                 link_timestamp_1 = \
-                    json_topo_metrics_1[ linkTimestamp ][ 'value' ]
+                    json_topo_metrics_1[linkTimestamp]['value']
                 link_timestamp_2 = \
-                    json_topo_metrics_2[ linkTimestamp ][ 'value' ]
+                    json_topo_metrics_2[linkTimestamp]['value']
                 link_timestamp_3 = \
-                    json_topo_metrics_3[ linkTimestamp ][ 'value' ]
+                    json_topo_metrics_3[linkTimestamp]['value']
 
                 if graph_timestamp_1 and graph_timestamp_2 and\
                         graph_timestamp_3 and link_timestamp_1 and\
                         link_timestamp_2 and link_timestamp_3:
-                    link_up_lat_graph1 = int( graph_timestamp_1 ) -\
-                        int( timestamp_link_up_t0 )
-                    link_up_lat_graph2 = int( graph_timestamp_2 ) -\
-                        int( timestamp_link_up_t0 )
-                    link_up_lat_graph3 = int( graph_timestamp_3 ) -\
-                        int( timestamp_link_up_t0 )
-
-                    link_up_lat_link1 = int( link_timestamp_1 ) -\
-                        int( timestamp_link_up_t0 )
-                    link_up_lat_link2 = int( link_timestamp_2 ) -\
-                        int( timestamp_link_up_t0 )
-                    link_up_lat_link3 = int( link_timestamp_3 ) -\
-                        int( timestamp_link_up_t0 )
+                    link_up_lat_graph1 = int(graph_timestamp_1) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_graph2 = int(graph_timestamp_2) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_graph3 = int(graph_timestamp_3) -\
+                            int(timestamp_link_up_t0)
+                
+                    link_up_lat_link1 = int(link_timestamp_1) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_link2 = int(link_timestamp_2) -\
+                            int(timestamp_link_up_t0)
+                    link_up_lat_link3 = int(link_timestamp_3) -\
+                            int(timestamp_link_up_t0)
                 else:
-                    main.log.error( "There was an error calculating" +
-                                    " the delta for link down event" )
+                    main.log.error("There was an error calculating"+
+                        " the delta for link down event")
                     link_up_lat_graph1 = 0
                     link_up_lat_graph2 = 0
                     link_up_lat_graph3 = 0
-
+                    
                     link_up_lat_device1 = 0
                     link_up_lat_device2 = 0
                     link_up_lat_device3 = 0
-
+       
             if debug_mode == 'on':
-                main.log.info( "Link up latency ONOS1 iteration " +
-                               str( i ) + " (end-to-end): " +
-                               str( link_up_lat_graph1 ) + " ms" )
-                main.log.info( "Link up latency ONOS2 iteration " +
-                               str( i ) + " (end-to-end): " +
-                               str( link_up_lat_graph2 ) + " ms" )
-                main.log.info( "Link up latency ONOS3 iteration " +
-                               str( i ) + " (end-to-end): " +
-                               str( link_up_lat_graph3 ) + " ms" )
-
-                main.log.info(
-                    "Link up latency ONOS1 iteration " +
-                    str( i ) +
-                    " (link-event-to-system-timestamp): " +
-                    str( link_up_lat_link1 ) +
-                    " ms" )
-                main.log.info(
-                    "Link up latency ONOS2 iteration " +
-                    str( i ) +
-                    " (link-event-to-system-timestamp): " +
-                    str( link_up_lat_link2 ) +
-                    " ms" )
-                main.log.info(
-                    "Link up latency ONOS3 iteration " +
-                    str( i ) +
-                    " (link-event-to-system-timestamp): " +
-                    str( link_up_lat_link3 ) )
-
-            # Calculate avg of node calculations
+                main.log.info("Link up latency ONOS1 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_up_lat_graph1)+" ms")
+                main.log.info("Link up latency ONOS2 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_up_lat_graph2)+" ms")
+                main.log.info("Link up latency ONOS3 iteration "+
+                    str(i)+" (end-to-end): "+
+                    str(link_up_lat_graph3)+" ms")
+            
+                main.log.info("Link up latency ONOS1 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_up_lat_link1)+" ms")
+                main.log.info("Link up latency ONOS2 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_up_lat_link2)+" ms")
+                main.log.info("Link up latency ONOS3 iteration "+
+                    str(i)+" (link-event-to-system-timestamp): "+
+                    str(link_up_lat_link3))
+      
+            #Calculate avg of node calculations
             link_up_lat_graph_avg =\
-                ( link_up_lat_graph1 +
-                  link_up_lat_graph2 +
-                  link_up_lat_graph3 ) / 3
+                    (link_up_lat_graph1 +
+                     link_up_lat_graph2 +
+                     link_up_lat_graph3) / 3
             link_up_lat_link_avg =\
-                ( link_up_lat_link1 +
-                  link_up_lat_link2 +
-                  link_up_lat_link3 ) / 3
+                    (link_up_lat_link1 +
+                     link_up_lat_link2 +
+                     link_up_lat_link3) / 3
 
-            # Set threshold and append latency to list
+            #Set threshold and append latency to list
             if link_up_lat_graph_avg > up_threshold_min and\
                link_up_lat_graph_avg < up_threshold_max:
                 link_up_graph_to_system_list.append(
-                    link_up_lat_graph_avg )
+                        link_up_lat_graph_avg)
             else:
-                main.log.info( "Link up latency exceeded threshold" )
-                main.log.info( "Results for iteration " + str( i ) +
-                               "have been omitted" )
+                main.log.info("Link up latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
             if link_up_lat_link_avg > up_threshold_min and\
                link_up_lat_link_avg < up_threshold_max:
                 link_up_link_to_system_list.append(
-                    link_up_lat_link_avg )
+                        link_up_lat_link_avg)
             else:
-                main.log.info( "Link up latency exceeded threshold" )
-                main.log.info( "Results for iteration " + str( i ) +
-                               "have been omitted" )
+                main.log.info("Link up latency exceeded threshold")
+                main.log.info("Results for iteration "+str(i)+
+                        "have been omitted")
 
-        # Calculate min, max, avg of list and report
-        link_down_min = min( link_down_graph_to_system_list )
-        link_down_max = max( link_down_graph_to_system_list )
-        link_down_avg = sum( link_down_graph_to_system_list ) / \
-            len( link_down_graph_to_system_list )
-        link_up_min = min( link_up_graph_to_system_list )
-        link_up_max = max( link_up_graph_to_system_list )
-        link_up_avg = sum( link_up_graph_to_system_list ) / \
-            len( link_up_graph_to_system_list )
+        #Calculate min, max, avg of list and report
+        link_down_min = min(link_down_graph_to_system_list)
+        link_down_max = max(link_down_graph_to_system_list)
+        link_down_avg = sum(link_down_graph_to_system_list) / \
+                        len(link_down_graph_to_system_list)
+        link_up_min = min(link_up_graph_to_system_list)
+        link_up_max = max(link_up_graph_to_system_list)
+        link_up_avg = sum(link_up_graph_to_system_list) / \
+                        len(link_up_graph_to_system_list)
         link_down_std_dev = \
-            str( round( numpy.std( link_down_graph_to_system_list ), 1 ) )
+                str(round(numpy.std(link_down_graph_to_system_list),1))
         link_up_std_dev = \
-            str( round( numpy.std( link_up_graph_to_system_list ), 1 ) )
+                str(round(numpy.std(link_up_graph_to_system_list),1))
 
-        main.log.report( "Link down latency " +
-                         "Avg: " + str( link_down_avg ) + " ms " +
-                         "Std Deviation: " + link_down_std_dev + " ms" )
-        main.log.report( "Link up latency " +
-                         "Avg: " + str( link_up_avg ) + " ms " +
-                         "Std Deviation: " + link_up_std_dev + " ms" )
+        main.log.report("Link down latency " +
+                "Avg: "+str(link_down_avg)+" ms "+
+                "Std Deviation: "+link_down_std_dev+" ms")
+        main.log.report("Link up latency "+
+                "Avg: "+str(link_up_avg)+" ms "+
+                "Std Deviation: "+link_up_std_dev+" ms")
 
-        utilities.assert_equals(
-            expect=main.TRUE,
-            actual=assertion,
-            onpass="Link discovery latency calculation successful",
-            onfail="Link discovery latency case failed" )
+        utilities.assert_equals(expect=main.TRUE, actual=assertion,
+                onpass="Link discovery latency calculation successful",
+                onfail="Link discovery latency case failed")
 
-    def CASE5( self, main ):
-        """
+    def CASE5(self, main):
+        '''
         100 Switch discovery latency
 
         Important:
-            This test case can be potentially dangerous if
+            This test case can be potentially dangerous if 
             your machine has previously set iptables rules.
             One of the steps of the test case will flush
             all existing iptables rules.
         Note:
-            You can specify the number of switches in the
+            You can specify the number of switches in the 
             params file to adjust the switch discovery size
-            ( and specify the corresponding topology in Mininet1
-            .topo file )
-        """
+            (and specify the corresponding topology in Mininet1 
+            .topo file)
+        '''
         import time
         import subprocess
         import os
         import requests
         import json
 
-        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
-        ONOS2_ip = main.params[ 'CTRL' ][ 'ip2' ]
-        ONOS3_ip = main.params[ 'CTRL' ][ 'ip3' ]
-        MN1_ip = main.params[ 'MN' ][ 'ip1' ]
-        ONOS_user = main.params[ 'CTRL' ][ 'user' ]
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        MN1_ip = main.params['MN']['ip1']
+        ONOS_user = main.params['CTRL']['user']
 
-        default_sw_port = main.params[ 'CTRL' ][ 'port1' ]
+        default_sw_port = main.params['CTRL']['port1']
+       
+        #Number of iterations of case
+        num_iter = main.params['TEST']['numIter']
+        num_sw = main.params['TEST']['numSwitch']
 
-        # Number of iterations of case
-        num_iter = main.params[ 'TEST' ][ 'numIter' ]
-        num_sw = main.params[ 'TEST' ][ 'numSwitch' ]
+        #Timestamp 'keys' for json metrics output.
+        #These are subject to change, hence moved into params
+        deviceTimestamp = main.params['JSON']['deviceTimestamp']
+        graphTimestamp = main.params['JSON']['graphTimestamp']
+        
+        debug_mode = main.params['TEST']['debugMode']
 
-        # Timestamp 'keys' for json metrics output.
-        # These are subject to change, hence moved into params
-        deviceTimestamp = main.params[ 'JSON' ][ 'deviceTimestamp' ]
-        graphTimestamp = main.params[ 'JSON' ][ 'graphTimestamp' ]
-
-        debug_mode = main.params[ 'TEST' ][ 'debugMode' ]
-
-        local_time = time.strftime( '%X' )
-        local_time = local_time.replace( "/", "" )
-        local_time = local_time.replace( " ", "_" )
-        local_time = local_time.replace( ":", "" )
+        local_time = time.strftime('%X')
+        local_time = local_time.replace("/","")
+        local_time = local_time.replace(" ","_")
+        local_time = local_time.replace(":","")
         if debug_mode == 'on':
-            main.ONOS1.tshark_pcap( "eth0",
-                                    "/tmp/100_sw_lat_pcap_" + local_time )
+            main.ONOS1.tshark_pcap("eth0",
+                    "/tmp/100_sw_lat_pcap_"+local_time) 
+ 
+        #Threshold for this test case
+        sw_disc_threshold_str = main.params['TEST']['swDisc100Threshold']
+        sw_disc_threshold_obj = sw_disc_threshold_str.split(",")
+        sw_disc_threshold_min = int(sw_disc_threshold_obj[0])
+        sw_disc_threshold_max = int(sw_disc_threshold_obj[1])
 
-        # Threshold for this test case
-        sw_disc_threshold_str = main.params[ 'TEST' ][ 'swDisc100Threshold' ]
-        sw_disc_threshold_obj = sw_disc_threshold_str.split( "," )
-        sw_disc_threshold_min = int( sw_disc_threshold_obj[ 0 ] )
-        sw_disc_threshold_max = int( sw_disc_threshold_obj[ 1 ] )
-
-        tshark_ofp_output = "/tmp/tshark_ofp_" + num_sw + "sw.txt"
-        tshark_tcp_output = "/tmp/tshark_tcp_" + num_sw + "sw.txt"
+        tshark_ofp_output = "/tmp/tshark_ofp_"+num_sw+"sw.txt"
+        tshark_tcp_output = "/tmp/tshark_tcp_"+num_sw+"sw.txt"
 
         tshark_ofp_result_list = []
         tshark_tcp_result_list = []
 
         sw_discovery_lat_list = []
 
-        main.case( num_sw + " Switch discovery latency" )
-        main.step( "Assigning all switches to ONOS1" )
-        for i in range( 1, int( num_sw ) + 1 ):
+        main.case(num_sw+" Switch discovery latency")
+        main.step("Assigning all switches to ONOS1")
+        for i in range(1, int(num_sw)+1):
             main.Mininet1.assign_sw_controller(
-                sw=str( i ),
-                ip1=ONOS1_ip,
-                port1=default_sw_port )
+                    sw=str(i),
+                    ip1=ONOS1_ip,
+                    port1=default_sw_port)
+        
+        #Ensure that nodes are configured with ptpd
+        #Just a warning message
+        main.log.info("Please check ptpd configuration to ensure"+\
+                " All nodes' system times are in sync")
+        time.sleep(5)
 
-        # Ensure that nodes are configured with ptpd
-        # Just a warning message
-        main.log.info( "Please check ptpd configuration to ensure" +
-                       " All nodes' system times are in sync" )
-        time.sleep( 5 )
-
-        for i in range( 0, int( num_iter ) ):
-
-            main.step( "Set iptables rule to block incoming sw connections" )
-            # Set iptables rule to block incoming switch connections
-            # The rule description is as follows:
+        for i in range(0, int(num_iter)):
+            
+            main.step("Set iptables rule to block incoming sw connections")
+            #Set iptables rule to block incoming switch connections
+            #The rule description is as follows:
             #   Append to INPUT rule,
             #   behavior DROP that matches following:
             #       * packet type: tcp
             #       * source IP: MN1_ip
             #       * destination PORT: 6633
             main.ONOS1.handle.sendline(
-                "sudo iptables -A INPUT -p tcp -s " + MN1_ip +
-                " --dport " + default_sw_port + " -j DROP" )
-            main.ONOS1.handle.expect( "\$" )
-            #   Append to OUTPUT rule,
+                    "sudo iptables -A INPUT -p tcp -s "+MN1_ip+
+                    " --dport "+default_sw_port+" -j DROP")
+            main.ONOS1.handle.expect("\$") 
+            #   Append to OUTPUT rule, 
             #   behavior DROP that matches following:
             #       * packet type: tcp
             #       * source IP: MN1_ip
             #       * destination PORT: 6633
             main.ONOS1.handle.sendline(
-                "sudo iptables -A OUTPUT -p tcp -s " + MN1_ip +
-                " --dport " + default_sw_port + " -j DROP" )
-            main.ONOS1.handle.expect( "\$" )
-            # Give time to allow rule to take effect
-            # NOTE: Sleep period may need to be configured
+                    "sudo iptables -A OUTPUT -p tcp -s "+MN1_ip+
+                    " --dport "+default_sw_port+" -j DROP")
+            main.ONOS1.handle.expect("\$")
+            #Give time to allow rule to take effect
+            #NOTE: Sleep period may need to be configured 
             #      based on the number of switches in the topology
-            main.log.info( "Please wait for switch connection to " +
-                           "time out" )
-            time.sleep( 60 )
+            main.log.info("Please wait for switch connection to "+
+                    "time out")
+            time.sleep(60)
+            
+            #Gather vendor OFP with tshark
+            main.ONOS1.tshark_grep("OFP 86 Vendor", 
+                    tshark_ofp_output)
+            main.ONOS1.tshark_grep("TCP 74 ",
+                    tshark_tcp_output)
 
-            # Gather vendor OFP with tshark
-            main.ONOS1.tshark_grep( "OFP 86 Vendor",
-                                    tshark_ofp_output )
-            main.ONOS1.tshark_grep( "TCP 74 ",
-                                    tshark_tcp_output )
-
-            # NOTE: Remove all iptables rule quickly ( flush )
-            #      Before removal, obtain TestON timestamp at which
+            #NOTE: Remove all iptables rule quickly (flush)
+            #      Before removal, obtain TestON timestamp at which 
             #      removal took place
-            #      ( ensuring nodes are configured via ptp )
+            #      (ensuring nodes are configured via ptp)
             #      sudo iptables -F
-
+            
             t0_system = time.time() * 1000
             main.ONOS1.handle.sendline(
-                "sudo iptables -F" )
+                    "sudo iptables -F")
 
-            # Counter to track loop count
+            #Counter to track loop count
             counter_loop = 0
             counter_avail1 = 0
             counter_avail2 = 0
@@ -1550,124 +1741,191 @@
             onos2_dev = False
             onos3_dev = False
             while counter_loop < 60:
-                # Continue to check devices for all device
-                # availability. When all devices in all 3
-                # ONOS instances indicate that devices are available
-                # obtain graph event timestamp for t1.
+                #Continue to check devices for all device 
+                #availability. When all devices in all 3
+                #ONOS instances indicate that devices are available
+                #obtain graph event timestamp for t1.
                 device_str_obj1 = main.ONOS1cli.devices()
                 device_str_obj2 = main.ONOS2cli.devices()
                 device_str_obj3 = main.ONOS3cli.devices()
 
-                device_json1 = json.loads( device_str_obj1 )
-                device_json2 = json.loads( device_str_obj2 )
-                device_json3 = json.loads( device_str_obj3 )
-
+                device_json1 = json.loads(device_str_obj1)                
+                device_json2 = json.loads(device_str_obj2)                
+                device_json3 = json.loads(device_str_obj3)           
+                
                 for device1 in device_json1:
-                    if device1[ 'available' ]:
+                    if device1['available'] == True:
                         counter_avail1 += 1
-                        if counter_avail1 == int( num_sw ):
+                        if counter_avail1 == int(num_sw):
                             onos1_dev = True
-                            main.log.info( "All devices have been " +
-                                           "discovered on ONOS1" )
+                            main.log.info("All devices have been "+
+                                    "discovered on ONOS1")
                     else:
                         counter_avail1 = 0
                 for device2 in device_json2:
-                    if device2[ 'available' ]:
+                    if device2['available'] == True:
                         counter_avail2 += 1
-                        if counter_avail2 == int( num_sw ):
+                        if counter_avail2 == int(num_sw):
                             onos2_dev = True
-                            main.log.info( "All devices have been " +
-                                           "discovered on ONOS2" )
+                            main.log.info("All devices have been "+
+                                    "discovered on ONOS2")
                     else:
                         counter_avail2 = 0
                 for device3 in device_json3:
-                    if device3[ 'available' ]:
+                    if device3['available'] == True:
                         counter_avail3 += 1
-                        if counter_avail3 == int( num_sw ):
+                        if counter_avail3 == int(num_sw):
                             onos3_dev = True
-                            main.log.info( "All devices have been " +
-                                           "discovered on ONOS3" )
+                            main.log.info("All devices have been "+
+                                    "discovered on ONOS3")
                     else:
                         counter_avail3 = 0
 
                 if onos1_dev and onos2_dev and onos3_dev:
-                    main.log.info( "All devices have been discovered " +
-                                   "on all ONOS instances" )
+                    main.log.info("All devices have been discovered "+
+                            "on all ONOS instances")
                     json_str_topology_metrics_1 =\
                         main.ONOS1cli.topology_events_metrics()
                     json_str_topology_metrics_2 =\
                         main.ONOS2cli.topology_events_metrics()
                     json_str_topology_metrics_3 =\
                         main.ONOS3cli.topology_events_metrics()
-
-                    # Exit while loop if all devices discovered
-                    break
-
+                   
+                    #Exit while loop if all devices discovered
+                    break 
+                
                 counter_loop += 1
-                # Give some time in between CLI calls
-                #( will not affect measurement )
-                time.sleep( 3 )
+                #Give some time in between CLI calls
+                #(will not affect measurement)
+                time.sleep(3)
 
             main.ONOS1.tshark_stop()
+            
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_ofp_output+" /tmp/") 
+            os.system("scp "+ONOS_user+"@"+ONOS1_ip+":"+
+                    tshark_tcp_output+" /tmp/")
 
-            os.system( "scp " + ONOS_user + "@" + ONOS1_ip + ":" +
-                       tshark_ofp_output + " /tmp/" )
-            os.system( "scp " + ONOS_user + "@" + ONOS1_ip + ":" +
-                       tshark_tcp_output + " /tmp/" )
-
-            # TODO: Automate OFP output analysis
-            # Debug mode - print out packets captured at runtime
-            if debug_mode == 'on':
-                ofp_file = open( tshark_ofp_output, 'r' )
-                main.log.info( "Tshark OFP Vendor output: " )
+            #TODO: Automate OFP output analysis
+            #Debug mode - print out packets captured at runtime     
+            if debug_mode == 'on': 
+                ofp_file = open(tshark_ofp_output, 'r')
+                main.log.info("Tshark OFP Vendor output: ")
                 for line in ofp_file:
-                    tshark_ofp_result_list.append( line )
-                    main.log.info( line )
+                    tshark_ofp_result_list.append(line)
+                    main.log.info(line)
                 ofp_file.close()
 
-                tcp_file = open( tshark_tcp_output, 'r' )
-                main.log.info( "Tshark TCP 74 output: " )
+                tcp_file = open(tshark_tcp_output, 'r')
+                main.log.info("Tshark TCP 74 output: ")
                 for line in tcp_file:
-                    tshark_tcp_result_list.append( line )
-                    main.log.info( line )
+                    tshark_tcp_result_list.append(line)
+                    main.log.info(line)
                 tcp_file.close()
 
-            json_obj_1 = json.loads( json_str_topology_metrics_1 )
-            json_obj_2 = json.loads( json_str_topology_metrics_2 )
-            json_obj_3 = json.loads( json_str_topology_metrics_3 )
+            json_obj_1 = json.loads(json_str_topology_metrics_1)
+            json_obj_2 = json.loads(json_str_topology_metrics_2)
+            json_obj_3 = json.loads(json_str_topology_metrics_3)
 
             graph_timestamp_1 = \
-                json_obj_1[ graphTimestamp ][ 'value' ]
+                    json_obj_1[graphTimestamp]['value']
             graph_timestamp_2 = \
-                json_obj_2[ graphTimestamp ][ 'value' ]
+                    json_obj_2[graphTimestamp]['value']
             graph_timestamp_3 = \
-                json_obj_3[ graphTimestamp ][ 'value' ]
+                    json_obj_3[graphTimestamp]['value']
 
-            graph_lat_1 = int( graph_timestamp_1 ) - int( t0_system )
-            graph_lat_2 = int( graph_timestamp_2 ) - int( t0_system )
-            graph_lat_3 = int( graph_timestamp_3 ) - int( t0_system )
+            graph_lat_1 = int(graph_timestamp_1) - int(t0_system)
+            graph_lat_2 = int(graph_timestamp_2) - int(t0_system)
+            graph_lat_3 = int(graph_timestamp_3) - int(t0_system)
 
             avg_graph_lat = \
-                ( int( graph_lat_1 ) +
-                  int( graph_lat_2 ) +
-                  int( graph_lat_3 ) ) / 3
-
+                    (int(graph_lat_1) +\
+                     int(graph_lat_2) +\
+                     int(graph_lat_3)) / 3
+    
             if avg_graph_lat > sw_disc_threshold_min \
                     and avg_graph_lat < sw_disc_threshold_max:
                 sw_discovery_lat_list.append(
-                    avg_graph_lat )
+                        avg_graph_lat)
             else:
-                main.log.info( "100 Switch discovery latency " +
-                               "exceeded the threshold." )
+                main.log.info("100 Switch discovery latency "+
+                        "exceeded the threshold.")
+            
+            #END ITERATION FOR LOOP
 
-            # END ITERATION FOR LOOP
+        sw_lat_min = min(sw_discovery_lat_list)
+        sw_lat_max = max(sw_discovery_lat_list)
+        sw_lat_avg = sum(sw_discovery_lat_list) /\
+                     len(sw_discovery_lat_list)
 
-        sw_lat_min = min( sw_discovery_lat_list )
-        sw_lat_max = max( sw_discovery_lat_list )
-        sw_lat_avg = sum( sw_discovery_lat_list ) /\
-            len( sw_discovery_lat_list )
+        main.log.report("100 Switch discovery lat "+\
+                "Min: "+str(sw_lat_min)+" ms"+\
+                "Max: "+str(sw_lat_max)+" ms"+\
+                "Avg: "+str(sw_lat_avg)+" ms")
 
-        main.log.report( "100 Switch discovery lat " +
-                         "Min: " + str( sw_lat_min ) + " ms" +
-                         "Max: " + str( sw_lat_max ) + " ms" +
-                         "Avg: " + str( sw_lat_avg ) + " ms" )
+    def CASE6(self, main):
+        '''
+        Increase number of nodes and initiate CLI
+        '''
+        import time
+        
+        ONOS1_ip = main.params['CTRL']['ip1']
+        ONOS2_ip = main.params['CTRL']['ip2']
+        ONOS3_ip = main.params['CTRL']['ip3']
+        ONOS4_ip = main.params['CTRL']['ip4']
+        ONOS5_ip = main.params['CTRL']['ip5']
+        ONOS6_ip = main.params['CTRL']['ip6']
+        ONOS7_ip = main.params['CTRL']['ip7']
+
+        cell_name = main.params['ENV']['cellName']
+    
+        global cluster_count
+        
+        #Cluster size increased everytime the case is defined
+        cluster_count += 2 
+
+        main.log.report("Increasing cluster size to "+
+                str(cluster_count))
+
+        install_result = main.FALSE
+        if cluster_count == 3:
+            main.log.info("Installing nodes 2 and 3")
+            node2_result = \
+                main.ONOSbench.onos_install(node=ONOS2_ip)
+            node3_result = \
+                main.ONOSbench.onos_install(node=ONOS3_ip)
+            install_result = node2_result and node3_result
+            
+            time.sleep(5)
+
+            main.ONOS2cli.start_onos_cli(ONOS2_ip)
+            main.ONOS3cli.start_onos_cli(ONOS3_ip)
+
+        elif cluster_count == 5:
+            main.log.info("Installing nodes 4 and 5")
+            node4_result = \
+                main.ONOSbench.onos_install(node=ONOS4_ip)
+            node5_result = \
+                main.ONOSbench.onos_install(node=ONOS5_ip)
+            install_result = node4_result and node5_result
+
+            time.sleep(5)
+
+            main.ONOS4cli.start_onos_cli(ONOS4_ip)
+            main.ONOS5cli.start_onos_cli(ONOS5_ip)
+
+        elif cluster_count == 7:
+            main.log.info("Installing nodes 4 and 5")
+            node6_result = \
+                main.ONOSbench.onos_install(node=ONOS6_ip)
+            node7_result = \
+                main.ONOSbench.onos_install(node=ONOS7_ip)
+            install_result = node6_result and node7_result
+
+            time.sleep(5)
+
+            main.ONOS6cli.start_onos_cli(ONOS6_ip)
+            main.ONOS7cli.start_onos_cli(ONOS7_ip)
+
+
+
diff --git a/TestON/tests/TopoPerfNext/TopoPerfNext.topo b/TestON/tests/TopoPerfNext/TopoPerfNext.topo
index 4ee44e2..fc70784 100644
--- a/TestON/tests/TopoPerfNext/TopoPerfNext.topo
+++ b/TestON/tests/TopoPerfNext/TopoPerfNext.topo
@@ -36,6 +36,42 @@
             <connect_order>2</connect_order>
             <COMPONENTS> </COMPONENTS>
         </ONOS3cli>
+        
+        <ONOS4cli>
+            <host>10.128.174.10</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosCliDriver</type>
+            <connect_order>2</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS4cli>
+        
+        <ONOS5cli>
+            <host>10.128.174.10</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosCliDriver</type>
+            <connect_order>2</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS5cli>
+        
+        <ONOS6cli>
+            <host>10.128.174.10</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosCliDriver</type>
+            <connect_order>2</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS6cli>
+        
+        <ONOS7cli>
+            <host>10.128.174.10</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosCliDriver</type>
+            <connect_order>2</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS7cli>
 
         <ONOS1>
             <host>10.128.174.1</host>
@@ -63,6 +99,42 @@
             <connect_order>3</connect_order>
             <COMPONENTS> </COMPONENTS>
         </ONOS3>
+        
+        <ONOS4>
+            <host>10.128.174.4</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosDriver</type>
+            <connect_order>3</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS4>
+        
+        <ONOS5>
+            <host>10.128.174.5</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosDriver</type>
+            <connect_order>3</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS5>
+        
+        <ONOS6>
+            <host>10.128.174.6</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosDriver</type>
+            <connect_order>3</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS6>
+        
+        <ONOS7>
+            <host>10.128.174.7</host>
+            <user>admin</user>
+            <password>onos_test</password>
+            <type>OnosDriver</type>
+            <connect_order>3</connect_order>
+            <COMPONENTS> </COMPONENTS>
+        </ONOS7>
 
         <Mininet1>
             <host>10.128.10.90</host>