Comment 7 for bug 1562467

Reviewed: https://review.openstack.org/299044
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=834ea6f8e6cc2427538213535c1494de6c11e5e4
Submitter: Jenkins
Branch: stable/kilo

commit 834ea6f8e6cc2427538213535c1494de6c11e5e4
Author: Kevin Benton <email address hidden>
Date: Fri Mar 25 12:37:12 2016 -0700

    DVR: rebind port if ofport changes

    When binding is called in DVR, check to see if the port was
    previously wired under a different ofport. If it was, first
    unbind the old port and then bind the new one.

    Conflicts:
     neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/test_ovs_neutron_agent.py

    Change-Id: I372158c4a6986295e396d849a2c9c5372b271e08
    Closes-Bug: #1562467
    (cherry picked from commit 4731dbbef1f615b9ce6d18315e8ca9810e8a772d)