Recover dual-homed host failover using pair link

In addition,
- Block ARP/NDP on pair port from being sent to controller
- Block DAD on pair port from flooded back to the originated host
- Minor refactoring

Change-Id: I3d697a06cb7ed3b56baa5d490197c155fe6969f0
5 files changed
tree: e553f7e79826f36b8cbdffb6d634589eee2c1470
  1. BUCK
  2. app.xml
  3. features.xml
  4. pom.xml
  5. src/