Comment 12 for bug 1840136

Reviewed: https://review.opendev.org/735355
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=de322da9e0d91a321823332d89c4e17072641e61
Submitter: Zuul
Branch: stable/rocky

commit de322da9e0d91a321823332d89c4e17072641e61
Author: Slawek Kaplonski <email address hidden>
Date: Tue Sep 17 14:20:31 2019 +0200

    Add "igmp_snooping_enable" config option for OVS agent

    Neutron-ovs-agent can now enable IGMP snooping in integration bridge
    if config option "igmp_snooping_enable" in OVS section in config will
    be set to True.
    It will also set mcast-snooping-disable-flood-unregistered=true
    so flooding of multicast packets to all unregistered ports will be
    disabled also.
    Both changes are applied on integration bridge.

    Change-Id: I12f4030a35d10d1715d3b4bfb3ed5efb9aa28f2b
    Closes-Bug: #1840136
    (cherry picked from commit 5b341150e29137e3dab671453a9a6c0908e74585)