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[OpenStack Infra <1840136@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/682634
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=5b341150e29137e3dab671453a9a6c0908e74585
Submitter: Zuul
Branch:    master

commit 5b341150e29137e3dab671453a9a6c0908e74585
Author: Slawek Kaplonski <skaplons@xxxxxxxxxx>
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


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1840136

Title:
  [RFE] Add new config option to enable IGMP snooping in ovs

Status in neutron:
  Fix Released

Bug description:
  This is proposal to add new config option to OVS agent's section to enable multicast snooping in br-int by neutron-ovs-agent.
  This option can be useful for users who wants to have support for multicast traffic which will be treated as "real" multicast instead of broadcast delivered to all ports.

  Some details about this are described in
  https://gist.github.com/djoreilly/a22ca4f38396e8867215fca0ad67fa28

  From neutron's point of view it would required only config option in neutron-ovs-agent and some code changes on agent's side.
  No any changes in API or DB layers are required by that RFE.

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