tree c8defec98605ced53ba5ececa98e7112df9b8951
parent 95f4ab61f187d0c9348cda5ee889540129cb2a2f
author Charles Chan <rascov@gmail.com> 1539286536 -0700
committer Charles Chan <charles@opennetworking.org> 1549411339 +0000

Eliminate redundant flow programming when host moves

When a host moves from [1A/1, 1B/1] to [1A/2, 1B/1], there is no need to program the pair link flow first.
Also update unit tests to verify this behavior.

Change-Id: I97c7ee5f0db891226c7ed477f5f05af5d6c1faa8