CORD-348 Fabric multicast support - error handling

Automatically failover to backup spine if
- ingress - transit link down
- transit - egress link down
- transit device down

Can recover from fatal error with human involved
- ingress switch down
- egress switch down
- all links to spine down

Scan through McastRouteStore when
- SR activate
- link up

Also include following features
- Use flow objective context in McastHandler
- Update Mcast VLAN config sample

Change-Id: I75007d9efd7646e7c4e57fa6d3fc6943543153cf
3 files changed
tree: b9b810c0d28e64c3ddc036af13e4efaa3be8dc42
  1. BUCK
  2. pom.xml
  3. src/