diff --git a/TestON/tests/SdnIpTest/SdnIpTest.py b/TestON/tests/SdnIpTest/SdnIpTest.py
old mode 100755
new mode 100644
index 4f55c02..081b1ca
--- a/TestON/tests/SdnIpTest/SdnIpTest.py
+++ b/TestON/tests/SdnIpTest/SdnIpTest.py
@@ -2,13 +2,14 @@
 
 # Testing the basic functionality of SDN-IP
 
+
 class SdnIpTest:
-    def __init__(self):
+
+    def __init__( self ):
         self.default = ''
 
-    def CASE1(self, main):
-
-        '''
+    def CASE1( self, main ):
+        """
         Test the SDN-IP functionality
         allRoutes_expected: all expected routes for all BGP peers
         routeIntents_expected: all expected MultiPointToSinglePointIntent intents
@@ -16,230 +17,272 @@
         allRoutes_actual: all routes from ONOS LCI
         routeIntents_actual: actual MultiPointToSinglePointIntent intents from ONOS CLI
         bgpIntents_actual: actual PointToPointIntent intents from ONOS CLI
-        '''
+        """
         import time
         import json
         from operator import eq
         # from datetime import datetime
         from time import localtime, strftime
 
-        main.case("The test case is to help to setup the TestON environment and test new drivers")
+        main.case(
+            "The test case is to help to setup the TestON environment and test new drivers" )
         SDNIP_JSON_FILE_PATH = "../tests/SdnIpTest/sdnip.json"
         # all expected routes for all BGP peers
         allRoutes_expected = []
-        main.step("Start to generate routes for all BGP peers")
+        main.step( "Start to generate routes for all BGP peers" )
         # bgpPeerHosts = []
-        # for i in range(3, 5):
-        #    bgpPeerHosts.append("host" + str(i))
-        # main.log.info("BGP Peer Hosts are:" + bgpPeerHosts)
+        # for i in range( 3, 5 ):
+        #    bgpPeerHosts.append( "host" + str( i ) )
+        # main.log.info( "BGP Peer Hosts are:" + bgpPeerHosts )
 
-        # for i in range(3, 5):
-         #   QuaggaCliHost = "QuaggaCliHost" + str(i)
-          #  prefixes = main.QuaggaCliHost.generate_prefixes(3, 10)
+        # for i in range( 3, 5 ):
+        #   QuaggaCliHost = "QuaggaCliHost" + str( i )
+        #  prefixes = main.QuaggaCliHost.generate_prefixes( 3, 10 )
 
-           # main.log.info(prefixes)
-            # allRoutes_expected.append(prefixes)
-        main.log.info("Generate prefixes for host3")
-        prefixes_host3 = main.QuaggaCliHost3.generate_prefixes(3, 10)
-        main.log.info(prefixes_host3)
+        # main.log.info( prefixes )
+        # allRoutes_expected.append( prefixes )
+        main.log.info( "Generate prefixes for host3" )
+        prefixes_host3 = main.QuaggaCliHost3.generate_prefixes( 3, 10 )
+        main.log.info( prefixes_host3 )
         # generate route with next hop
         for prefix in prefixes_host3:
-            allRoutes_expected.append(prefix + "/" + "192.168.20.1")
-        routeIntents_expected_host3 = main.QuaggaCliHost3.generate_expected_onePeerRouteIntents(prefixes_host3, "192.168.20.1", "00:00:00:00:02:02", SDNIP_JSON_FILE_PATH)
+            allRoutes_expected.append( prefix + "/" + "192.168.20.1" )
+        routeIntents_expected_host3 = main.QuaggaCliHost3.generate_expected_onePeerRouteIntents(
+            prefixes_host3,
+            "192.168.20.1",
+            "00:00:00:00:02:02",
+            SDNIP_JSON_FILE_PATH )
 
-        main.log.info("Generate prefixes for host4")
-        prefixes_host4 = main.QuaggaCliHost4.generate_prefixes(4, 10)
-        main.log.info(prefixes_host4)
+        main.log.info( "Generate prefixes for host4" )
+        prefixes_host4 = main.QuaggaCliHost4.generate_prefixes( 4, 10 )
+        main.log.info( prefixes_host4 )
         # generate route with next hop
         for prefix in prefixes_host4:
-            allRoutes_expected.append(prefix + "/" + "192.168.30.1")
-        routeIntents_expected_host4 = main.QuaggaCliHost4.generate_expected_onePeerRouteIntents(prefixes_host4, "192.168.30.1", "00:00:00:00:03:01", SDNIP_JSON_FILE_PATH)
+            allRoutes_expected.append( prefix + "/" + "192.168.30.1" )
+        routeIntents_expected_host4 = main.QuaggaCliHost4.generate_expected_onePeerRouteIntents(
+            prefixes_host4,
+            "192.168.30.1",
+            "00:00:00:00:03:01",
+            SDNIP_JSON_FILE_PATH )
 
-        routeIntents_expected = routeIntents_expected_host3 + routeIntents_expected_host4
+        routeIntents_expected = routeIntents_expected_host3 + \
+            routeIntents_expected_host4
 
-
-        cell_name = main.params['ENV']['cellName']
-        ONOS1_ip = main.params['CTRL']['ip1']
-        main.step("Set cell for ONOS-cli environment")
-        main.ONOScli.set_cell(cell_name)
+        cell_name = main.params[ 'ENV' ][ 'cellName' ]
+        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
+        main.step( "Set cell for ONOS-cli environment" )
+        main.ONOScli.set_cell( cell_name )
         verify_result = main.ONOSbench.verify_cell()
-        main.log.report("Removing raft logs")
+        main.log.report( "Removing raft logs" )
         main.ONOSbench.onos_remove_raft_logs()
-        main.log.report("Uninstalling ONOS")
-        main.ONOSbench.onos_uninstall(ONOS1_ip)
-        main.step("Creating ONOS package")
+        main.log.report( "Uninstalling ONOS" )
+        main.ONOSbench.onos_uninstall( ONOS1_ip )
+        main.step( "Creating ONOS package" )
         package_result = main.ONOSbench.onos_package()
 
-        main.step("Starting ONOS service")
+        main.step( "Starting ONOS service" )
         # TODO: start ONOS from Mininet Script
-        # start_result = main.ONOSbench.onos_start("127.0.0.1")
-        main.step("Installing ONOS package")
-        onos1_install_result = main.ONOSbench.onos_install(options="-f", node=ONOS1_ip)
+        # start_result = main.ONOSbench.onos_start( "127.0.0.1" )
+        main.step( "Installing ONOS package" )
+        onos1_install_result = main.ONOSbench.onos_install(
+            options="-f",
+            node=ONOS1_ip )
 
-        main.step("Checking if ONOS is up yet")
-        time.sleep(60)
-        onos1_isup = main.ONOSbench.isup(ONOS1_ip)
+        main.step( "Checking if ONOS is up yet" )
+        time.sleep( 60 )
+        onos1_isup = main.ONOSbench.isup( ONOS1_ip )
         if not onos1_isup:
-            main.log.report("ONOS1 didn't start!")
+            main.log.report( "ONOS1 didn't start!" )
 
-        main.step("Start ONOS-cli")
+        main.step( "Start ONOS-cli" )
         # TODO: change the hardcode in start_onos_cli method in ONOS CLI driver
 
-        main.ONOScli.start_onos_cli(ONOS1_ip)
+        main.ONOScli.start_onos_cli( ONOS1_ip )
 
-        main.step("Get devices in the network")
-        list_result = main.ONOScli.devices(json_format=False)
-        main.log.info(list_result)
-        time.sleep(10)
-        main.log.info("Installing sdn-ip feature")
-        main.ONOScli.feature_install("onos-app-sdnip")
-        time.sleep(10)
-        main.step("Login all BGP peers and add routes into peers")
-        main.log.info("Login Quagga CLI on host3")
-        main.QuaggaCliHost3.loginQuagga("1.168.30.2")
-        main.log.info("Enter configuration model of Quagga CLI on host3")
-        main.QuaggaCliHost3.enter_config(64514)
-        main.log.info("Add routes to Quagga on host3")
-        main.QuaggaCliHost3.add_routes(prefixes_host3, 1)
+        main.step( "Get devices in the network" )
+        list_result = main.ONOScli.devices( json_format=False )
+        main.log.info( list_result )
+        time.sleep( 10 )
+        main.log.info( "Installing sdn-ip feature" )
+        main.ONOScli.feature_install( "onos-app-sdnip" )
+        time.sleep( 10 )
+        main.step( "Login all BGP peers and add routes into peers" )
+        main.log.info( "Login Quagga CLI on host3" )
+        main.QuaggaCliHost3.loginQuagga( "1.168.30.2" )
+        main.log.info( "Enter configuration model of Quagga CLI on host3" )
+        main.QuaggaCliHost3.enter_config( 64514 )
+        main.log.info( "Add routes to Quagga on host3" )
+        main.QuaggaCliHost3.add_routes( prefixes_host3, 1 )
 
-        main.log.info("Login Quagga CLI on host4")
-        main.QuaggaCliHost4.loginQuagga("1.168.30.3")
-        main.log.info("Enter configuration model of Quagga CLI on host4")
-        main.QuaggaCliHost4.enter_config(64516)
-        main.log.info("Add routes to Quagga on host4")
-        main.QuaggaCliHost4.add_routes(prefixes_host4, 1)
-        time.sleep(60)
+        main.log.info( "Login Quagga CLI on host4" )
+        main.QuaggaCliHost4.loginQuagga( "1.168.30.3" )
+        main.log.info( "Enter configuration model of Quagga CLI on host4" )
+        main.QuaggaCliHost4.enter_config( 64516 )
+        main.log.info( "Add routes to Quagga on host4" )
+        main.QuaggaCliHost4.add_routes( prefixes_host4, 1 )
+        time.sleep( 60 )
 
         # get all routes inside SDN-IP
-        get_routes_result = main.ONOScli.routes(json_format=True)
+        get_routes_result = main.ONOScli.routes( json_format=True )
 
         # parse routes from ONOS CLI
-        allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(get_routes_result)
+        allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(
+            get_routes_result )
 
-        allRoutes_str_expected = str(sorted(allRoutes_expected))
-        allRoutes_str_actual = str(allRoutes_actual).replace('u', "")
-        main.step("Check routes installed")
-        main.log.info("Routes expected:")
-        main.log.info(allRoutes_str_expected)
-        main.log.info("Routes get from ONOS CLI:")
-        main.log.info(allRoutes_str_actual)
-        utilities.assert_equals(expect=allRoutes_str_expected, actual=allRoutes_str_actual,
-                                onpass="***Routes in SDN-IP are correct!***",
-                                onfail="***Routes in SDN-IP are wrong!***")
-        if(eq(allRoutes_str_expected, allRoutes_str_actual)):
-            main.log.report("***Routes in SDN-IP after adding routes are correct!***")
+        allRoutes_str_expected = str( sorted( allRoutes_expected ) )
+        allRoutes_str_actual = str( allRoutes_actual ).replace( 'u', "" )
+        main.step( "Check routes installed" )
+        main.log.info( "Routes expected:" )
+        main.log.info( allRoutes_str_expected )
+        main.log.info( "Routes get from ONOS CLI:" )
+        main.log.info( allRoutes_str_actual )
+        utilities.assert_equals(
+            expect=allRoutes_str_expected,
+            actual=allRoutes_str_actual,
+            onpass="***Routes in SDN-IP are correct!***",
+            onfail="***Routes in SDN-IP are wrong!***" )
+        if( eq( allRoutes_str_expected, allRoutes_str_actual ) ):
+            main.log.report(
+                "***Routes in SDN-IP after adding routes are correct!***" )
         else:
-            main.log.report("***Routes in SDN-IP after adding routes are wrong!***")
+            main.log.report(
+                "***Routes in SDN-IP after adding routes are wrong!***" )
 
-        time.sleep(20)
-        get_intents_result = main.ONOScli.intents(json_format=True)
+        time.sleep( 20 )
+        get_intents_result = main.ONOScli.intents( json_format=True )
 
-
-        main.step("Check MultiPointToSinglePointIntent intents installed")
+        main.step( "Check MultiPointToSinglePointIntent intents installed" )
         # route_intents_expected are generated when generating routes
         # get rpoute intents from ONOS CLI
-        routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(get_intents_result)
-        routeIntents_str_expected = str(sorted(routeIntents_expected))
-        routeIntents_str_actual = str(routeIntents_actual).replace('u', "")
-        main.log.info("MultiPointToSinglePoint intents expected:")
-        main.log.info(routeIntents_str_expected)
-        main.log.info("MultiPointToSinglePoint intents get from ONOS CLI:")
-        main.log.info(routeIntents_str_actual)
-        utilities.assert_equals(expect=True, actual=eq(routeIntents_str_expected, routeIntents_str_actual),
-                                onpass="***MultiPointToSinglePoint Intents in SDN-IP are correct!***",
-                                onfail="***MultiPointToSinglePoint Intents in SDN-IP are wrong!***")
+        routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(
+            get_intents_result )
+        routeIntents_str_expected = str( sorted( routeIntents_expected ) )
+        routeIntents_str_actual = str( routeIntents_actual ).replace( 'u', "" )
+        main.log.info( "MultiPointToSinglePoint intents expected:" )
+        main.log.info( routeIntents_str_expected )
+        main.log.info( "MultiPointToSinglePoint intents get from ONOS CLI:" )
+        main.log.info( routeIntents_str_actual )
+        utilities.assert_equals(
+            expect=True,
+            actual=eq(
+                routeIntents_str_expected,
+                routeIntents_str_actual ),
+            onpass="***MultiPointToSinglePoint Intents in SDN-IP are correct!***",
+            onfail="***MultiPointToSinglePoint Intents in SDN-IP are wrong!***" )
 
-        if(eq(routeIntents_str_expected, routeIntents_str_actual)):
-            main.log.report("***MultiPointToSinglePoint Intents before deleting routes correct!***")
+        if( eq( routeIntents_str_expected, routeIntents_str_actual ) ):
+            main.log.report(
+                "***MultiPointToSinglePoint Intents before deleting routes correct!***" )
         else:
-            main.log.report("***MultiPointToSinglePoint Intents before deleting routes wrong!***")
+            main.log.report(
+                "***MultiPointToSinglePoint Intents before deleting routes wrong!***" )
 
-        main.step("Check BGP PointToPointIntent intents installed")
+        main.step( "Check BGP PointToPointIntent intents installed" )
         # bgp intents expected
-        bgpIntents_expected = main.QuaggaCliHost3.generate_expected_bgpIntents(SDNIP_JSON_FILE_PATH)
+        bgpIntents_expected = main.QuaggaCliHost3.generate_expected_bgpIntents(
+            SDNIP_JSON_FILE_PATH )
         # get BGP intents from ONOS CLI
-        bgpIntents_actual = main.QuaggaCliHost3.extract_actual_bgpIntents(get_intents_result)
+        bgpIntents_actual = main.QuaggaCliHost3.extract_actual_bgpIntents(
+            get_intents_result )
 
-        bgpIntents_str_expected = str(bgpIntents_expected).replace('u', "")
-        bgpIntents_str_actual = str(bgpIntents_actual)
-        main.log.info("PointToPointIntent intents expected:")
-        main.log.info(bgpIntents_str_expected)
-        main.log.info("PointToPointIntent intents get from ONOS CLI:")
-        main.log.info(bgpIntents_str_actual)
+        bgpIntents_str_expected = str( bgpIntents_expected ).replace( 'u', "" )
+        bgpIntents_str_actual = str( bgpIntents_actual )
+        main.log.info( "PointToPointIntent intents expected:" )
+        main.log.info( bgpIntents_str_expected )
+        main.log.info( "PointToPointIntent intents get from ONOS CLI:" )
+        main.log.info( bgpIntents_str_actual )
 
-        utilities.assert_equals(expect=True, actual=eq(bgpIntents_str_expected, bgpIntents_str_actual),
-                                onpass="***PointToPointIntent Intents in SDN-IP are correct!***",
-                                onfail="***PointToPointIntent Intents in SDN-IP are wrong!***")
+        utilities.assert_equals(
+            expect=True,
+            actual=eq(
+                bgpIntents_str_expected,
+                bgpIntents_str_actual ),
+            onpass="***PointToPointIntent Intents in SDN-IP are correct!***",
+            onfail="***PointToPointIntent Intents in SDN-IP are wrong!***" )
 
-
-        if (eq(bgpIntents_str_expected, bgpIntents_str_actual)):
-            main.log.report("***PointToPointIntent Intents in SDN-IP are correct!***")
+        if ( eq( bgpIntents_str_expected, bgpIntents_str_actual ) ):
+            main.log.report(
+                "***PointToPointIntent Intents in SDN-IP are correct!***" )
         else:
-            main.log.report("***PointToPointIntent Intents in SDN-IP are wrong!***")
-
-
+            main.log.report(
+                "***PointToPointIntent Intents in SDN-IP are wrong!***" )
 
         #============================= Ping Test ========================
         # wait until all MultiPointToSinglePoint
-        time.sleep(20)
+        time.sleep( 20 )
         ping_test_script = "~/SDNIP/SdnIpIntentDemo/CASE1-ping-as2host.sh"
-        ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE1-ping-results-before-delete-routes-" + strftime("%Y-%m-%d_%H:%M:%S", localtime()) + ".txt"
-        ping_test_results = main.QuaggaCliHost.ping_test("1.168.30.100", ping_test_script, ping_test_results_file)
-        main.log.info(ping_test_results)
+        ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE1-ping-results-before-delete-routes-" + \
+            strftime( "%Y-%m-%d_%H:%M:%S", localtime() ) + ".txt"
+        ping_test_results = main.QuaggaCliHost.ping_test(
+            "1.168.30.100",
+            ping_test_script,
+            ping_test_results_file )
+        main.log.info( ping_test_results )
 
         # ping test
 
         #============================= Deleting Routes ==================
-        main.step("Check deleting routes installed")
-        main.QuaggaCliHost3.delete_routes(prefixes_host3, 1)
-        main.QuaggaCliHost4.delete_routes(prefixes_host4, 1)
+        main.step( "Check deleting routes installed" )
+        main.QuaggaCliHost3.delete_routes( prefixes_host3, 1 )
+        main.QuaggaCliHost4.delete_routes( prefixes_host4, 1 )
 
-        # main.log.info("main.ONOScli.get_routes_num() = " )
-        # main.log.info(main.ONOScli.get_routes_num())
-        # utilities.assert_equals(expect = "Total SDN-IP routes = 1", actual= main.ONOScli.get_routes_num(),
-        get_routes_result = main.ONOScli.routes(json_format=True)
-        allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(get_routes_result)
-        main.log.info("allRoutes_actual = ")
-        main.log.info(allRoutes_actual)
+        # main.log.info( "main.ONOScli.get_routes_num() = " )
+        # main.log.info( main.ONOScli.get_routes_num() )
+        # utilities.assert_equals( expect="Total SDN-IP routes = 1", actual=
+        # main.ONOScli.get_routes_num(),
+        get_routes_result = main.ONOScli.routes( json_format=True )
+        allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(
+            get_routes_result )
+        main.log.info( "allRoutes_actual = " )
+        main.log.info( allRoutes_actual )
 
-        utilities.assert_equals(expect="[]", actual=str(allRoutes_actual),
-                                onpass="***Route number in SDN-IP is 0, correct!***",
-                                onfail="***Routes number in SDN-IP is not 0, wrong!***")
+        utilities.assert_equals(
+            expect="[]",
+            actual=str( allRoutes_actual ),
+            onpass="***Route number in SDN-IP is 0, correct!***",
+            onfail="***Routes number in SDN-IP is not 0, wrong!***" )
 
-        if(eq(allRoutes_str_expected, allRoutes_str_actual)):
-            main.log.report("***Routes in SDN-IP after deleting correct!***")
+        if( eq( allRoutes_str_expected, allRoutes_str_actual ) ):
+            main.log.report( "***Routes in SDN-IP after deleting correct!***" )
         else:
-            main.log.report("***Routes in SDN-IP after deleting wrong!***")
+            main.log.report( "***Routes in SDN-IP after deleting wrong!***" )
 
-        main.step("Check intents after deleting routes")
-        get_intents_result = main.ONOScli.intents(json_format=True)
-        routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(get_intents_result)
-        main.log.info("main.ONOScli.intents()= ")
-        main.log.info(routeIntents_actual)
-        utilities.assert_equals(expect="[]", actual=str(routeIntents_actual),
-                                onpass="***MultiPointToSinglePoint Intents number in SDN-IP is 0, correct!***",
-                                onfail="***MultiPointToSinglePoint Intents number in SDN-IP is 0, wrong!***")
+        main.step( "Check intents after deleting routes" )
+        get_intents_result = main.ONOScli.intents( json_format=True )
+        routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(
+            get_intents_result )
+        main.log.info( "main.ONOScli.intents()= " )
+        main.log.info( routeIntents_actual )
+        utilities.assert_equals(
+            expect="[]",
+            actual=str( routeIntents_actual ),
+            onpass="***MultiPointToSinglePoint Intents number in SDN-IP is 0, correct!***",
+            onfail="***MultiPointToSinglePoint Intents number in SDN-IP is 0, wrong!***" )
 
-        if(eq(routeIntents_str_expected, routeIntents_str_actual)):
-            main.log.report("***MultiPointToSinglePoint Intents after deleting routes correct!***")
+        if( eq( routeIntents_str_expected, routeIntents_str_actual ) ):
+            main.log.report(
+                "***MultiPointToSinglePoint Intents after deleting routes correct!***" )
         else:
-            main.log.report("***MultiPointToSinglePoint Intents after deleting routes wrong!***")
+            main.log.report(
+                "***MultiPointToSinglePoint Intents after deleting routes wrong!***" )
 
-        time.sleep(20)
+        time.sleep( 20 )
         ping_test_script = "~/SDNIP/SdnIpIntentDemo/CASE1-ping-as2host.sh"
-        ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE1-ping-results-after-delete-routes-" + strftime("%Y-%m-%d_%H:%M:%S", localtime()) + ".txt"
-        ping_test_results = main.QuaggaCliHost.ping_test("1.168.30.100", ping_test_script, ping_test_results_file)
-        main.log.info(ping_test_results)
-        time.sleep(30)
+        ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE1-ping-results-after-delete-routes-" + \
+            strftime( "%Y-%m-%d_%H:%M:%S", localtime() ) + ".txt"
+        ping_test_results = main.QuaggaCliHost.ping_test(
+            "1.168.30.100",
+            ping_test_script,
+            ping_test_results_file )
+        main.log.info( ping_test_results )
+        time.sleep( 30 )
 
-        # main.step("Test whether Mininet is started")
-        # main.Mininet2.handle.sendline("xterm host1")
-        # main.Mininet2.handle.expect("mininet>")
+        # main.step( "Test whether Mininet is started" )
+        # main.Mininet2.handle.sendline( "xterm host1" )
+        # main.Mininet2.handle.expect( "mininet>" )
 
-
-    def CASE2(self, main):
-
-        '''
+    def CASE2( self, main ):
+        """
         Test the SDN-IP functionality
         allRoutes_expected: all expected routes for all BGP peers
         routeIntents_expected: all expected MultiPointToSinglePointIntent intents
@@ -247,217 +290,266 @@
         allRoutes_actual: all routes from ONOS LCI
         routeIntents_actual: actual MultiPointToSinglePointIntent intents from ONOS CLI
         bgpIntents_actual: actual PointToPointIntent intents from ONOS CLI
-        '''
+        """
         import time
         import json
         from operator import eq
         from time import localtime, strftime
 
-        main.case("The test case is to help to setup the TestON environment and test new drivers")
+        main.case(
+            "The test case is to help to setup the TestON environment and test new drivers" )
         SDNIP_JSON_FILE_PATH = "../tests/SdnIpTest/sdnip.json"
         # all expected routes for all BGP peers
         allRoutes_expected = []
-        main.step("Start to generate routes for all BGP peers")
+        main.step( "Start to generate routes for all BGP peers" )
 
-        main.log.info("Generate prefixes for host3")
-        prefixes_host3 = main.QuaggaCliHost3.generate_prefixes(3, 10)
-        main.log.info(prefixes_host3)
+        main.log.info( "Generate prefixes for host3" )
+        prefixes_host3 = main.QuaggaCliHost3.generate_prefixes( 3, 10 )
+        main.log.info( prefixes_host3 )
         # generate route with next hop
         for prefix in prefixes_host3:
-            allRoutes_expected.append(prefix + "/" + "192.168.20.1")
-        routeIntents_expected_host3 = main.QuaggaCliHost3.generate_expected_onePeerRouteIntents(prefixes_host3, "192.168.20.1", "00:00:00:00:02:02", SDNIP_JSON_FILE_PATH)
+            allRoutes_expected.append( prefix + "/" + "192.168.20.1" )
+        routeIntents_expected_host3 = main.QuaggaCliHost3.generate_expected_onePeerRouteIntents(
+            prefixes_host3,
+            "192.168.20.1",
+            "00:00:00:00:02:02",
+            SDNIP_JSON_FILE_PATH )
 
-        main.log.info("Generate prefixes for host4")
-        prefixes_host4 = main.QuaggaCliHost4.generate_prefixes(4, 10)
-        main.log.info(prefixes_host4)
+        main.log.info( "Generate prefixes for host4" )
+        prefixes_host4 = main.QuaggaCliHost4.generate_prefixes( 4, 10 )
+        main.log.info( prefixes_host4 )
         # generate route with next hop
         for prefix in prefixes_host4:
-            allRoutes_expected.append(prefix + "/" + "192.168.30.1")
-        routeIntents_expected_host4 = main.QuaggaCliHost4.generate_expected_onePeerRouteIntents(prefixes_host4, "192.168.30.1", "00:00:00:00:03:01", SDNIP_JSON_FILE_PATH)
+            allRoutes_expected.append( prefix + "/" + "192.168.30.1" )
+        routeIntents_expected_host4 = main.QuaggaCliHost4.generate_expected_onePeerRouteIntents(
+            prefixes_host4,
+            "192.168.30.1",
+            "00:00:00:00:03:01",
+            SDNIP_JSON_FILE_PATH )
 
-        routeIntents_expected = routeIntents_expected_host3 + routeIntents_expected_host4
+        routeIntents_expected = routeIntents_expected_host3 + \
+            routeIntents_expected_host4
 
-        main.log.report("Removing raft logs")
+        main.log.report( "Removing raft logs" )
         main.ONOSbench.onos_remove_raft_logs()
-        main.log.report("Uninstalling ONOS")
-        main.ONOSbench.onos_uninstall(ONOS1_ip)
+        main.log.report( "Uninstalling ONOS" )
+        main.ONOSbench.onos_uninstall( ONOS1_ip )
 
-        cell_name = main.params['ENV']['cellName']
-        ONOS1_ip = main.params['CTRL']['ip1']
-        main.step("Set cell for ONOS-cli environment")
-        main.ONOScli.set_cell(cell_name)
+        cell_name = main.params[ 'ENV' ][ 'cellName' ]
+        ONOS1_ip = main.params[ 'CTRL' ][ 'ip1' ]
+        main.step( "Set cell for ONOS-cli environment" )
+        main.ONOScli.set_cell( cell_name )
         verify_result = main.ONOSbench.verify_cell()
-        #main.log.report("Removing raft logs")
-        #main.ONOSbench.onos_remove_raft_logs()
-        #main.log.report("Uninstalling ONOS")
-        #main.ONOSbench.onos_uninstall(ONOS1_ip)
-        main.step("Creating ONOS package")
+        #main.log.report( "Removing raft logs" )
+        # main.ONOSbench.onos_remove_raft_logs()
+        #main.log.report( "Uninstalling ONOS" )
+        # main.ONOSbench.onos_uninstall( ONOS1_ip )
+        main.step( "Creating ONOS package" )
         package_result = main.ONOSbench.onos_package()
 
-        main.step("Installing ONOS package")
-        onos1_install_result = main.ONOSbench.onos_install(options="-f", node=ONOS1_ip)
+        main.step( "Installing ONOS package" )
+        onos1_install_result = main.ONOSbench.onos_install(
+            options="-f",
+            node=ONOS1_ip )
 
-        main.step("Checking if ONOS is up yet")
-        time.sleep(60)
-        onos1_isup = main.ONOSbench.isup(ONOS1_ip)
+        main.step( "Checking if ONOS is up yet" )
+        time.sleep( 60 )
+        onos1_isup = main.ONOSbench.isup( ONOS1_ip )
         if not onos1_isup:
-            main.log.report("ONOS1 didn't start!")
+            main.log.report( "ONOS1 didn't start!" )
 
-        main.step("Start ONOS-cli")
-        main.ONOScli.start_onos_cli(ONOS1_ip)
+        main.step( "Start ONOS-cli" )
+        main.ONOScli.start_onos_cli( ONOS1_ip )
 
-        main.step("Get devices in the network")
-        list_result = main.ONOScli.devices(json_format=False)
-        main.log.info(list_result)
-        time.sleep(10)
-        main.log.info("Installing sdn-ip feature")
-        main.ONOScli.feature_install("onos-app-sdnip")
-        time.sleep(10)
+        main.step( "Get devices in the network" )
+        list_result = main.ONOScli.devices( json_format=False )
+        main.log.info( list_result )
+        time.sleep( 10 )
+        main.log.info( "Installing sdn-ip feature" )
+        main.ONOScli.feature_install( "onos-app-sdnip" )
+        time.sleep( 10 )
 
-
-        main.step("Check BGP PointToPointIntent intents installed")
+        main.step( "Check BGP PointToPointIntent intents installed" )
         # bgp intents expected
-        bgpIntents_expected = main.QuaggaCliHost3.generate_expected_bgpIntents(SDNIP_JSON_FILE_PATH)
+        bgpIntents_expected = main.QuaggaCliHost3.generate_expected_bgpIntents(
+            SDNIP_JSON_FILE_PATH )
         # get BGP intents from ONOS CLI
-        get_intents_result = main.ONOScli.intents(json_format=True)
-        bgpIntents_actual = main.QuaggaCliHost3.extract_actual_bgpIntents(get_intents_result)
+        get_intents_result = main.ONOScli.intents( json_format=True )
+        bgpIntents_actual = main.QuaggaCliHost3.extract_actual_bgpIntents(
+            get_intents_result )
 
-        bgpIntents_str_expected = str(bgpIntents_expected).replace('u', "")
-        bgpIntents_str_actual = str(bgpIntents_actual)
-        main.log.info("PointToPointIntent intents expected:")
-        main.log.info(bgpIntents_str_expected)
-        main.log.info("PointToPointIntent intents get from ONOS CLI:")
-        main.log.info(bgpIntents_str_actual)
+        bgpIntents_str_expected = str( bgpIntents_expected ).replace( 'u', "" )
+        bgpIntents_str_actual = str( bgpIntents_actual )
+        main.log.info( "PointToPointIntent intents expected:" )
+        main.log.info( bgpIntents_str_expected )
+        main.log.info( "PointToPointIntent intents get from ONOS CLI:" )
+        main.log.info( bgpIntents_str_actual )
 
-        utilities.assert_equals(expect=True, actual=eq(bgpIntents_str_expected, bgpIntents_str_actual),
-                                onpass="***PointToPointIntent Intents in SDN-IP are correct!***",
-                                onfail="***PointToPointIntent Intents in SDN-IP are wrong!***")
+        utilities.assert_equals(
+            expect=True,
+            actual=eq(
+                bgpIntents_str_expected,
+                bgpIntents_str_actual ),
+            onpass="***PointToPointIntent Intents in SDN-IP are correct!***",
+            onfail="***PointToPointIntent Intents in SDN-IP are wrong!***" )
 
-        if (eq(bgpIntents_str_expected, bgpIntents_str_actual)):
-            main.log.report("***PointToPointIntent Intents in SDN-IP are correct!***")
+        if ( eq( bgpIntents_str_expected, bgpIntents_str_actual ) ):
+            main.log.report(
+                "***PointToPointIntent Intents in SDN-IP are correct!***" )
         else:
-            main.log.report("***PointToPointIntent Intents in SDN-IP are wrong!***")
+            main.log.report(
+                "***PointToPointIntent Intents in SDN-IP are wrong!***" )
 
-
-        allRoutes_str_expected = str(sorted(allRoutes_expected))
-        routeIntents_str_expected = str(sorted(routeIntents_expected))
+        allRoutes_str_expected = str( sorted( allRoutes_expected ) )
+        routeIntents_str_expected = str( sorted( routeIntents_expected ) )
         ping_test_script = "~/SDNIP/SdnIpIntentDemo/CASE1-ping-as2host.sh"
         # round_num = 0;
-        # while(True):
-        for round_num in range(1, 6):
+        # while( True ):
+        for round_num in range( 1, 6 ):
             # round = round + 1;
-            main.log.report("The Round " + str(round_num) + " test starts........................................")
+            main.log.report(
+                "The Round " +
+                str( round_num ) +
+                " test starts........................................" )
 
-            main.step("Login all BGP peers and add routes into peers")
-            main.log.info("Login Quagga CLI on host3")
-            main.QuaggaCliHost3.loginQuagga("1.168.30.2")
-            main.log.info("Enter configuration model of Quagga CLI on host3")
-            main.QuaggaCliHost3.enter_config(64514)
-            main.log.info("Add routes to Quagga on host3")
-            main.QuaggaCliHost3.add_routes(prefixes_host3, 1)
+            main.step( "Login all BGP peers and add routes into peers" )
+            main.log.info( "Login Quagga CLI on host3" )
+            main.QuaggaCliHost3.loginQuagga( "1.168.30.2" )
+            main.log.info( "Enter configuration model of Quagga CLI on host3" )
+            main.QuaggaCliHost3.enter_config( 64514 )
+            main.log.info( "Add routes to Quagga on host3" )
+            main.QuaggaCliHost3.add_routes( prefixes_host3, 1 )
 
-            main.log.info("Login Quagga CLI on host4")
-            main.QuaggaCliHost4.loginQuagga("1.168.30.3")
-            main.log.info("Enter configuration model of Quagga CLI on host4")
-            main.QuaggaCliHost4.enter_config(64516)
-            main.log.info("Add routes to Quagga on host4")
-            main.QuaggaCliHost4.add_routes(prefixes_host4, 1)
-            time.sleep(60)
+            main.log.info( "Login Quagga CLI on host4" )
+            main.QuaggaCliHost4.loginQuagga( "1.168.30.3" )
+            main.log.info( "Enter configuration model of Quagga CLI on host4" )
+            main.QuaggaCliHost4.enter_config( 64516 )
+            main.log.info( "Add routes to Quagga on host4" )
+            main.QuaggaCliHost4.add_routes( prefixes_host4, 1 )
+            time.sleep( 60 )
 
             # get all routes inside SDN-IP
-            get_routes_result = main.ONOScli.routes(json_format=True)
+            get_routes_result = main.ONOScli.routes( json_format=True )
 
             # parse routes from ONOS CLI
-            allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(get_routes_result)
+            allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(
+                get_routes_result )
 
-            # allRoutes_str_expected = str(sorted(allRoutes_expected))
-            allRoutes_str_actual = str(allRoutes_actual).replace('u', "")
-            main.step("Check routes installed")
-            main.log.info("Routes expected:")
-            main.log.info(allRoutes_str_expected)
-            main.log.info("Routes get from ONOS CLI:")
-            main.log.info(allRoutes_str_actual)
-            utilities.assert_equals(expect=allRoutes_str_expected, actual=allRoutes_str_actual,
-                                    onpass="***Routes in SDN-IP are correct!***",
-                                    onfail="***Routes in SDN-IP are wrong!***")
-            if(eq(allRoutes_str_expected, allRoutes_str_actual)):
-                main.log.report("***Routes in SDN-IP after adding correct!***")
+            # allRoutes_str_expected = str( sorted( allRoutes_expected ) )
+            allRoutes_str_actual = str( allRoutes_actual ).replace( 'u', "" )
+            main.step( "Check routes installed" )
+            main.log.info( "Routes expected:" )
+            main.log.info( allRoutes_str_expected )
+            main.log.info( "Routes get from ONOS CLI:" )
+            main.log.info( allRoutes_str_actual )
+            utilities.assert_equals(
+                expect=allRoutes_str_expected,
+                actual=allRoutes_str_actual,
+                onpass="***Routes in SDN-IP are correct!***",
+                onfail="***Routes in SDN-IP are wrong!***" )
+            if( eq( allRoutes_str_expected, allRoutes_str_actual ) ):
+                main.log.report(
+                    "***Routes in SDN-IP after adding correct!***" )
             else:
-                main.log.report("***Routes in SDN-IP after adding wrong!***")
+                main.log.report( "***Routes in SDN-IP after adding wrong!***" )
 
-            time.sleep(20)
-            get_intents_result = main.ONOScli.intents(json_format=True)
+            time.sleep( 20 )
+            get_intents_result = main.ONOScli.intents( json_format=True )
 
-
-            main.step("Check MultiPointToSinglePointIntent intents installed")
+            main.step(
+                "Check MultiPointToSinglePointIntent intents installed" )
             # route_intents_expected are generated when generating routes
             # get route intents from ONOS CLI
-            routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(get_intents_result)
-            # routeIntents_str_expected = str(sorted(routeIntents_expected))
-            routeIntents_str_actual = str(routeIntents_actual).replace('u', "")
-            main.log.info("MultiPointToSinglePoint intents expected:")
-            main.log.info(routeIntents_str_expected)
-            main.log.info("MultiPointToSinglePoint intents get from ONOS CLI:")
-            main.log.info(routeIntents_str_actual)
-            utilities.assert_equals(expect=True, actual=eq(routeIntents_str_expected, routeIntents_str_actual),
-                                    onpass="***MultiPointToSinglePoint Intents in SDN-IP are correct!***",
-                                    onfail="***MultiPointToSinglePoint Intents in SDN-IP are wrong!***")
+            routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(
+                get_intents_result )
+            # routeIntents_str_expected = str( sorted( routeIntents_expected ) )
+            routeIntents_str_actual = str(
+                routeIntents_actual ).replace( 'u', "" )
+            main.log.info( "MultiPointToSinglePoint intents expected:" )
+            main.log.info( routeIntents_str_expected )
+            main.log.info(
+                "MultiPointToSinglePoint intents get from ONOS CLI:" )
+            main.log.info( routeIntents_str_actual )
+            utilities.assert_equals(
+                expect=True,
+                actual=eq(
+                    routeIntents_str_expected,
+                    routeIntents_str_actual ),
+                onpass="***MultiPointToSinglePoint Intents in SDN-IP are correct!***",
+                onfail="***MultiPointToSinglePoint Intents in SDN-IP are wrong!***" )
 
-            if(eq(routeIntents_str_expected, routeIntents_str_actual)):
-                main.log.report("***MultiPointToSinglePoint Intents after adding routes correct!***")
+            if( eq( routeIntents_str_expected, routeIntents_str_actual ) ):
+                main.log.report(
+                    "***MultiPointToSinglePoint Intents after adding routes correct!***" )
             else:
-                main.log.report("***MultiPointToSinglePoint Intents after adding routes wrong!***")
+                main.log.report(
+                    "***MultiPointToSinglePoint Intents after adding routes wrong!***" )
 
             #============================= Ping Test ========================
             # wait until all MultiPointToSinglePoint
-            time.sleep(20)
+            time.sleep( 20 )
             # ping_test_script = "~/SDNIP/SdnIpIntentDemo/CASE1-ping-as2host.sh"
-            ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE2-Round" + str(round_num) + "-ping-results-before-delete-routes-" + strftime("%Y-%m-%d_%H:%M:%S", localtime()) + ".txt"
-            ping_test_results = main.QuaggaCliHost.ping_test("1.168.30.100", ping_test_script, ping_test_results_file)
-            main.log.info(ping_test_results)
+            ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE2-Round" + \
+                str( round_num ) + "-ping-results-before-delete-routes-" + strftime( "%Y-%m-%d_%H:%M:%S", localtime() ) + ".txt"
+            ping_test_results = main.QuaggaCliHost.ping_test(
+                "1.168.30.100",
+                ping_test_script,
+                ping_test_results_file )
+            main.log.info( ping_test_results )
             # ping test
 
             #============================= Deleting Routes ==================
-            main.step("Check deleting routes installed")
-            main.log.info("Delete routes to Quagga on host3")
-            main.QuaggaCliHost3.delete_routes(prefixes_host3, 1)
-            main.log.info("Delete routes to Quagga on host4")
-            main.QuaggaCliHost4.delete_routes(prefixes_host4, 1)
+            main.step( "Check deleting routes installed" )
+            main.log.info( "Delete routes to Quagga on host3" )
+            main.QuaggaCliHost3.delete_routes( prefixes_host3, 1 )
+            main.log.info( "Delete routes to Quagga on host4" )
+            main.QuaggaCliHost4.delete_routes( prefixes_host4, 1 )
 
-            get_routes_result = main.ONOScli.routes(json_format=True)
-            allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(get_routes_result)
-            main.log.info("allRoutes_actual = ")
-            main.log.info(allRoutes_actual)
+            get_routes_result = main.ONOScli.routes( json_format=True )
+            allRoutes_actual = main.QuaggaCliHost3.extract_actual_routes(
+                get_routes_result )
+            main.log.info( "allRoutes_actual = " )
+            main.log.info( allRoutes_actual )
 
-            utilities.assert_equals(expect="[]", actual=str(allRoutes_actual),
-                                    onpass="***Route number in SDN-IP is 0, correct!***",
-                                    onfail="***Routes number in SDN-IP is not 0, wrong!***")
+            utilities.assert_equals(
+                expect="[]",
+                actual=str( allRoutes_actual ),
+                onpass="***Route number in SDN-IP is 0, correct!***",
+                onfail="***Routes number in SDN-IP is not 0, wrong!***" )
 
-            if(eq(allRoutes_str_expected, allRoutes_str_actual)):
-                main.log.report("***Routes in SDN-IP after deleting correct!***")
+            if( eq( allRoutes_str_expected, allRoutes_str_actual ) ):
+                main.log.report(
+                    "***Routes in SDN-IP after deleting correct!***" )
             else:
-                main.log.report("***Routes in SDN-IP after deleting wrong!***")
+                main.log.report(
+                    "***Routes in SDN-IP after deleting wrong!***" )
 
-            main.step("Check intents after deleting routes")
-            get_intents_result = main.ONOScli.intents(json_format=True)
-            routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(get_intents_result)
-            main.log.info("main.ONOScli.intents()= ")
-            main.log.info(routeIntents_actual)
-            utilities.assert_equals(expect="[]", actual=str(routeIntents_actual),
-                                    onpass="***MultiPointToSinglePoint Intents number in SDN-IP is 0, correct!***",
-                                    onfail="***MultiPointToSinglePoint Intents number in SDN-IP is 0, wrong!***")
+            main.step( "Check intents after deleting routes" )
+            get_intents_result = main.ONOScli.intents( json_format=True )
+            routeIntents_actual = main.QuaggaCliHost3.extract_actual_routeIntents(
+                get_intents_result )
+            main.log.info( "main.ONOScli.intents()= " )
+            main.log.info( routeIntents_actual )
+            utilities.assert_equals(
+                expect="[]",
+                actual=str( routeIntents_actual ),
+                onpass="***MultiPointToSinglePoint Intents number in SDN-IP is 0, correct!***",
+                onfail="***MultiPointToSinglePoint Intents number in SDN-IP is 0, wrong!***" )
 
-            if(eq(routeIntents_str_expected, routeIntents_str_actual)):
-                main.log.report("***MultiPointToSinglePoint Intents after deleting routes correct!***")
+            if( eq( routeIntents_str_expected, routeIntents_str_actual ) ):
+                main.log.report(
+                    "***MultiPointToSinglePoint Intents after deleting routes correct!***" )
             else:
-                main.log.report("***MultiPointToSinglePoint Intents after deleting routes wrong!***")
+                main.log.report(
+                    "***MultiPointToSinglePoint Intents after deleting routes wrong!***" )
 
-            time.sleep(20)
+            time.sleep( 20 )
             # ping_test_script = "~/SDNIP/SdnIpIntentDemo/CASE1-ping-as2host.sh"
-            ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE2-Round" + str(round_num) + "-ping-results-after-delete-routes-" + strftime("%Y-%m-%d_%H:%M:%S", localtime()) + ".txt"
-            ping_test_results = main.QuaggaCliHost.ping_test("1.168.30.100", ping_test_script, ping_test_results_file)
-            main.log.info(ping_test_results)
-            time.sleep(30)
-
-
-
+            ping_test_results_file = "~/SDNIP/SdnIpIntentDemo/log/CASE2-Round" + \
+                str( round_num ) + "-ping-results-after-delete-routes-" + strftime( "%Y-%m-%d_%H:%M:%S", localtime() ) + ".txt"
+            ping_test_results = main.QuaggaCliHost.ping_test(
+                "1.168.30.100",
+                ping_test_script,
+                ping_test_results_file )
+            main.log.info( ping_test_results )
+            time.sleep( 30 )