Pinging ng40 with a host for 2x2 SRBridging

Change-Id: Id31aab3c31f7f2981046ac5c3e45794f4886b6c4
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
index 325af80..d5230a0 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
@@ -26,6 +26,7 @@
 
     def __init__( self ):
         self.default = ''
+        self.topo = run.getTopo()
 
     @staticmethod
     def runTest( main, testIndex, onosNodes, description, dhcpRelay=False, remoteServer=False, multipleServer=False, ipv6=False, vlan=[], dualHomed=False ):