diff --git a/TestON/tests/SAMPscaleTopo/SAMPscaleTopo.py b/TestON/tests/SAMPscaleTopo/SAMPscaleTopo.py
new file mode 100644
index 0000000..2458c71
--- /dev/null
+++ b/TestON/tests/SAMPscaleTopo/SAMPscaleTopo.py
@@ -0,0 +1,216 @@
+
+# Testing network scalability, this test suite scales up a network topology
+# using mininet and verifies ONOS stability
+
+class SAMPscaleTopo:
+
+    def __init__( self ):
+        self.default = ''
+
+    def CASE1( self, main ):
+        import time
+        import os
+        import imp
+
+        """
+        - Construct tests variables
+        - GIT ( optional )
+            - Checkout ONOS master branch
+            - Pull latest ONOS code
+        - Building ONOS ( optional )
+            - Install ONOS package
+            - Build ONOS package
+        """
+
+        main.case( "Constructing test variables and building ONOS package" )
+        main.step( "Constructing test variables" )
+        stepResult = main.FALSE
+
+        # Test variables
+        main.testOnDirectory = os.path.dirname( os.getcwd ( ) )
+        main.apps = main.params[ 'ENV' ][ 'cellApps' ]
+        gitBranch = main.params[ 'GIT' ][ 'branch' ]
+        main.dependencyPath = main.testOnDirectory + \
+                              main.params[ 'DEPENDENCY' ][ 'path' ]
+        main.topology = main.params[ 'DEPENDENCY' ][ 'topology' ]
+        main.scale = ( main.params[ 'SCALE' ][ 'size' ] ).split( "," )
+        main.maxNodes = int( main.params[ 'SCALE' ][ 'max' ] )
+        main.ONOSport = main.params[ 'CTRL' ][ 'port' ]
+        wrapperFile1 = main.params[ 'DEPENDENCY' ][ 'wrapper1' ]
+        wrapperFile2 = main.params[ 'DEPENDENCY' ][ 'wrapper2' ]
+        main.startUpSleep = int( main.params[ 'SLEEP' ][ 'startup' ] )
+        main.fwdSleep = int( main.params[ 'SLEEP' ][ 'fwd' ] )
+        gitPull = main.params[ 'GIT' ][ 'pull' ]
+        main.cellData = {} # for creating cell file
+        main.hostsData = {}
+        main.CLIs = []
+        main.ONOSip = []
+
+        main.ONOSip = main.ONOSbench.getOnosIps()
+        print main.ONOSip
+
+        # Assigning ONOS cli handles to a list
+        for i in range( 1,  main.maxNodes + 1 ):
+            main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
+
+        # -- INIT SECTION, ONLY RUNS ONCE -- #
+        main.startUp = imp.load_source( wrapperFile1,
+                                        main.dependencyPath +
+                                        wrapperFile1 +
+                                        ".py" )
+        main.scaleTopoFunction = imp.load_source( wrapperFile2,
+                                                  main.dependencyPath +
+                                                  wrapperFile2 +
+                                                  ".py" )
+
+        copyResult = main.ONOSbench.copyMininetFile( main.topology,
+                                                     main.dependencyPath,
+                                                     main.Mininet1.user_name,
+                                                     main.Mininet1.ip_address )
+        if main.CLIs:
+            stepResult = main.TRUE
+        else:
+            main.log.error( "Did not properly created list of ONOS CLI handle" )
+            stepResult = main.FALSE
+
+        utilities.assert_equals( expect=main.TRUE,
+                                 actual=stepResult,
+                                 onpass="Successfully construct " +
+                                        "test variables ",
+                                 onfail="Failed to construct test variables" )
+
+        if gitPull == 'True':
+            main.step( "Building ONOS in " + gitBranch + " branch" )
+            onosBuildResult = main.startUp.onosBuild( main, gitBranch )
+            stepResult = onosBuildResult
+            utilities.assert_equals( expect=main.TRUE,
+                                     actual=stepResult,
+                                     onpass="Successfully compiled " +
+                                            "latest ONOS",
+                                     onfail="Failed to compile " +
+                                            "latest ONOS" )
+        else:
+            main.log.warn( "Did not pull new code so skipping mvn " +
+                           "clean install" )
+
+    def CASE2( self, main ):
+        """
+        - Set up cell
+            - Create cell file
+            - Set cell file
+            - Verify cell file
+        - Kill ONOS process
+        - Uninstall ONOS cluster
+        - Verify ONOS start up
+        - Install ONOS cluster
+        - Connect to cli
+        """
+
+        # main.scale[ 0 ] determines the current number of ONOS controller
+        main.numCtrls = int( main.scale[ 0 ] )
+
+        main.case( "Starting up " + str( main.numCtrls ) +
+                   " node(s) ONOS cluster" )
+
+        #kill off all onos processes
+        main.log.info( "Safety check, killing all ONOS processes" +
+                       " before initiating enviornment setup" )
+
+        for i in range( main.maxNodes ):
+            main.ONOSbench.onosDie( main.ONOSip[ i ] )
+
+        print "NODE COUNT = ", main.numCtrls
+
+        tempOnosIp = []
+        for i in range( main.numCtrls ):
+            tempOnosIp.append( main.ONOSip[i] )
+
+        main.ONOSbench.createCellFile( main.ONOSbench.ip_address,
+                                       "temp", main.Mininet1.ip_address,
+                                       main.apps,
+                                       tempOnosIp )
+
+        main.step( "Apply cell to environment" )
+        cellResult = main.ONOSbench.setCell( "temp" )
+        verifyResult = main.ONOSbench.verifyCell()
+        stepResult = cellResult and verifyResult
+        utilities.assert_equals( expect=main.TRUE,
+                                 actual=stepResult,
+                                 onpass="Successfully applied cell to " + \
+                                        "environment",
+                                 onfail="Failed to apply cell to environment " )
+
+        main.step( "Creating ONOS package" )
+        packageResult = main.ONOSbench.onosPackage()
+        stepResult = packageResult
+        utilities.assert_equals( expect=main.TRUE,
+                                 actual=stepResult,
+                                 onpass="Successfully created ONOS package",
+                                 onfail="Failed to create ONOS package" )
+
+
+        # Remove the first element in main.scale list
+        main.scale.remove( main.scale[ 0 ] )
+
+    def CASE9( self, main ):
+        '''
+            Report errors/warnings/exceptions
+        '''
+        main.log.info("Error report: \n" )
+        main.ONOSbench.logReport( main.ONOSip[ 0 ],
+                                  [ "INFO",
+                                    "FOLLOWER",
+                                    "WARN",
+                                    "flow",
+                                    "ERROR",
+                                    "Except" ],
+                                  "s" )
+
+    def CASE11( self, main ):
+        """
+            Start mininet
+        """
+        main.log.report( "Start Mininet topology" )
+        main.log.case( "Start Mininet topology" )
+
+        main.step( "Starting Mininet Topology" )
+        topoResult = main.Mininet1.startNet( topoFile=topology )
+        stepResult = topoResult
+        utilities.assert_equals( expect=main.TRUE,
+                                 actual=stepResult,
+                                 onpass="Successfully loaded topology",
+                                 onfail="Failed to load topology" )
+        # Exit if topology did not load properly
+        if not topoResult:
+            main.cleanup()
+            main.exit()
+
+    def CASE1001( self, main ):
+        """
+            Test topology discovery
+        """
+        main.case( "Topology discovery test" )
+
+
+        main.step( "Torus 5-5 topology" )
+        main.topoName = "TORUS5-5"
+        mnCmd = "mn --topo=torus,5,5 --mac"
+        stepResult = main.scaleTopoFunction.testTopology( main,
+                                                          mnCmd=mnCmd,
+                                                          clean=False )
+        utilities.assert_equals( expect=main.TRUE,
+                                 actual=stepResult,
+                                 onpass="Torus 5-5 topology successful",
+                                 onfail="Torus 5-5 topology failed" )
+
+        main.topoName = "TREE3-3"
+        stepResult = main.TRUE
+        main.step( "Tree 3-3 topology" )
+        mnCmd = "mn --topo=tree,3,3 --mac"
+        stepResult = main.scaleTopoFunction.testTopology( main,
+                                                          mnCmd=mnCmd,
+                                                          clean=True )
+        utilities.assert_equals( expect=main.TRUE,
+                                 actual=stepResult,
+                                 onpass="Tree 3-3 topology successful",
+                                 onfail="Tree 3-3 topology failed" )