Look at port stats to choose port

- In TOST port failure tests, look at port stats to
  determine which link is carrying the most traffic
  so we can bring it down
- Add eNB leaf-spine link down case

Change-Id: Ia13f3d41e836deaf21dd93574a39ccd954dd488f
diff --git a/TestON/drivers/common/cli/onosclusterdriver.py b/TestON/drivers/common/cli/onosclusterdriver.py
index d10b17f..b0f924b 100755
--- a/TestON/drivers/common/cli/onosclusterdriver.py
+++ b/TestON/drivers/common/cli/onosclusterdriver.py
@@ -233,6 +233,8 @@
                             portsList += "%s:%s " % ( localPort, port )
                             if port == cliPort:
                                 node.CLI.karafPort = localPort
+                            elif port == guiPort:
+                                node.REST.port = localPort
                         main.log.info( "Setting up port forward for pod %s: [ %s ]" % ( self.podNames[ index ], portsList ) )
                         pf = kubectl.kubectlPortForward( self.podNames[ index ],
                                                          portsList,