Comment 14 for bug 1928466

Reviewed: https://review.opendev.org/c/openstack/neutron/+/792757
Committed: https://opendev.org/openstack/neutron/commit/ab31406d77a29278a9a0360e375bb3689526aec0
Submitter: "Zuul (22348)"
Branch: stable/ussuri

commit ab31406d77a29278a9a0360e375bb3689526aec0
Author: Slawek Kaplonski <email address hidden>
Date: Fri May 14 16:07:14 2021 +0200

    [DVR] Send allowed address pairs info to the L3 agents

    When new dvr router is going to be created on the node, L3 agent
    asks server for list of ports plugged to the subnets, to populate
    arp entries for all fixed IPs from those ports.
    There was missing info about allowed address pairs there, so those
    IPs were not populated in the qrouter namespace.
    Now it's added and L3 agent can add those arp entries to the qrouter
    namespaces too.

    Conflicts:
        neutron/tests/unit/db/test_l3_dvr_db.py

    Closes-Bug: #1928466
    Change-Id: I5d6c72c271ff450d9e43b3e33a99dd59d727882d
    (cherry picked from commit 7b59b5069b1402730602b430416a15b1609253ea)