tree 637bf04ac511b50a5561241d3dce5cc9e61d4323
parent 8652389c96f2a25e99cc3edbfe13ba0a30eb98ed
author Charles Chan <rascov@gmail.com> 1455693289 -0800
committer Gerrit Code Review <gerrit@onlab.us> 1455924979 +0000

CORD-546 Push L3 unicast rules for bgp peers when they are learned

- Change L3 unicast group id/key generation to include src MAC
- Note: Only flows are removed when a peer is gone
  since the group may still be referenced by routes announced by peer.
  It does no harm even if the group is not referenced.
- Note: We assume that peer does not move or update IP

Also fix several SR/VR integration issues, including
- Do not push broadcast group for /32

Change-Id: Ifb03601f5341f8b7717ea1fbccbc569b07f66476