SR fixes

- Update trellis-* app versions
- Fix xconnect configuration
- Avoid reserved MPLS labels

Change-Id: Ie7755f6afc4fcb3480e7f218f7e2e76f70c57531
diff --git a/TestON/tests/USECASE/SegmentRouting/SRLinkFailure/dependencies/SRLinkFailFuncs.py b/TestON/tests/USECASE/SegmentRouting/SRLinkFailure/dependencies/SRLinkFailFuncs.py
index 6a8dd7e..4f07fe5 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRLinkFailure/dependencies/SRLinkFailFuncs.py
+++ b/TestON/tests/USECASE/SegmentRouting/SRLinkFailure/dependencies/SRLinkFailFuncs.py
@@ -50,6 +50,8 @@
             run.loadJson( main )
             run.loadChart( main )
             run.startMininet( main, 'cord_fabric.py', args=self.topo[ Topo ][ 2 ] )
+            # xconnects need to be loaded after topology
+            run.loadXconnects( main )
             # pre-configured routing and bridging test
             run.checkFlows( main, minFlowCount=minFlow )
             run.pingAll( main )