Comment 34 for bug 1597461

Reviewed: https://review.openstack.org/473820
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=90c24e9d263eaef66369210f06c158b1425996aa
Submitter: Jenkins
Branch: stable/newton

commit 90c24e9d263eaef66369210f06c158b1425996aa
Author: venkata anil <email address hidden>
Date: Mon Jun 5 09:56:18 2017 +0000

    Set HA network port to DOWN when l3 agent starts

    When l3 agent node is rebooted, if HA network port status is already
    ACTIVE in DB, agent will get this status from server and then spawn
    the keepalived (though l2 agent might not have wired the port),
    resulting in multiple HA masters active at the same time.

    To fix this, when the L3 agent starts up we can have it explicitly
    set the port status to DOWN for all of the HA ports on that node.
    Then we are guaranteed that when they go to ACTIVE it will be because
    the L2 agent has wired the ports.

    Closes-bug: #1597461
    Change-Id: Ib0c8a71b6ff97e43a414f3db4882914b12170d53
    (cherry picked from commit d730b1010277138136512eb6efb12ab893ca6793)