tree b7e470e4fd8a48e018764812c3a850f96592dedb
parent e559bcf45dff0bbf9a392629b53db6bc052de23a
author Yuta HIGUCHI <y-higuchi@ak.jp.nec.com> 1513550029 -0800
committer Yuta HIGUCHI <y-higuchi@ak.jp.nec.com> 1513637902 -0800

Maintain OFPortDesc up-to-date

- OFPortDesc cache managed by AbstractOpenFlowSwitch was not always maintained properly.
  reorganized data structure to maintain per OFPortDesc, last known instance

Change-Id: I1b26d7ca284e44bf9744c30374394c581653d78f