Reviewed: https://review.opendev.org/c/openstack/neutron/+/770794
Committed:
https://opendev.org/openstack/neutron/commit/5d21998524514c0cab6a40e7fa415d9ff6a88f4a
Submitter: "Zuul (22348)"
Branch: stable/rocky
commit 5d21998524514c0cab6a40e7fa415d9ff6a88f4a
Author: Slawek Kaplonski <skapl...@redhat.com>
Date: Thu Dec 10 00:10:38 2020 +0100
Fix multicast traffic with IGMP snooping enabled
In the ML2/OVS when igmp_snooping is enabled but there is no
external querier multicast traffic will stop working after few minutes
as packets will not be flooded to tunnel/external bridges.
So this patch sets "mcast-snooping-disable-flood-unregistered" option
of the br-int to False (default value) even when igmp_snooping is
enabled in the neutron-ovs-agent's config file.
Additionally it configures "mcast-snooping-flood-reports" and
"mcast-snooping-flood" on patch ports in br-int to True.
That way we can provide best effort snooping: multicast isolation where
IGMP queriers are available and flood everywhere else?
Conflicts:
neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py
neutron/tests/functional/agent/common/test_ovs_lib.py
neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/test_ovs_neutron_agent.py
neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/test_ovs_tunnel.py
Closes-Bug: #1884723
Change-Id: Iefa0044dba9e92592295a79448e5d57d9e14a40b
(cherry picked from commit b4070c975274f53a4a2caaabeb5af55683232d3d)
** Tags added: in-stable-rocky
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https://bugs.launchpad.net/bugs/1884723
Title:
[OVS] multicast between VM instances on different compute nodes is
broken with IGMP snooping enabled
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