Comment 4 for bug 1691602

Reviewed: https://review.openstack.org/465783
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=bf8e6007cfa50d461790be325e9e97b8b396ae47
Submitter: Jenkins
Branch: master

commit bf8e6007cfa50d461790be325e9e97b8b396ae47
Author: Matt Riedemann <email address hidden>
Date: Wed May 17 22:18:54 2017 -0400

    Send port ID in network-changed event to Nova

    When Nova gets a network-changed event, it rebuilds the
    entire network info cache for the instance if it does not
    have a specific port ID. This can be costly and redundant
    when performing something like a live migration with multiple
    ports attached to the same instance.

    This change simply adds the port ID to the network-changed event
    since we have it in scope. Nova can use it or not, but at least
    the information is provided for context.

    Change-Id: Ifdaef05208d09ddd9587fed6214cf388e5265ba4
    Closes-Bug: #1691602