tree 8fec136624c77a64744dd5badecb34040cddfea6
parent c87db552b0c0b3358075bce17ba91634e99c07d1
author Charles Chan <rascov@gmail.com> 1445383459 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1446153405 +0000

[CORD-46] Create a broadcast group for each subnet

DONE
- Expose subnet-to-ports information from DeviceProperties and DeviceConfiguration
- Create subnetNextObjectiveStore to store <DeviceId, IpPrefix> to nextId mapping
- Implement broadcast NextObjective in SpringOpenTTP
      Use ALL group type to achieve broadcast

TODO (not in this submission)
- Push ARP table for a host when its location is learned
- Push default ARP table miss rule. Action = to the broadcast group

Change-Id: I2de28095e85289e75af3fc7a02c811b270b342ad