Public bug reported: ML2/OVN reuses the same "[ovs]/igmp_snooping_enable" configuration option from ML2/OVS, which says [0]:
"Setting this option to True will also enable Open vSwitch mcast- snooping-disable-flood-unregistered flag. This option will disable flooding of unregistered multicast packets to all ports." But, that's not true for ML2/OVN, in fact, this is the opposite because ML2/OVN does have the option to flood to unregistered VMs enabled by default. In order to keep the consistent between both drivers and this configuration option, ML2/OVN needs to disable the "mcast_flood_unregistered" configuration in the other_config column from the Logical Switch table when igmp_snooping_enable is True. [0] https://opendev.org/openstack/neutron/src/branch/master/neutron/conf/agent/ovs_conf.py#L36-L47 ** Affects: neutron Importance: Medium Assignee: Lucas Alvares Gomes (lucasagomes) Status: New ** Tags: ovn ** Changed in: neutron Assignee: (unassigned) => Lucas Alvares Gomes (lucasagomes) ** Changed in: neutron Importance: Undecided => Medium ** Changed in: neutron Importance: Medium => High ** Changed in: neutron Importance: High => Medium -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1904399 Title: [OVN] Inconsistent "flooding to unregistered" IGMP configuration Status in neutron: New Bug description: ML2/OVN reuses the same "[ovs]/igmp_snooping_enable" configuration option from ML2/OVS, which says [0]: "Setting this option to True will also enable Open vSwitch mcast- snooping-disable-flood-unregistered flag. This option will disable flooding of unregistered multicast packets to all ports." But, that's not true for ML2/OVN, in fact, this is the opposite because ML2/OVN does have the option to flood to unregistered VMs enabled by default. In order to keep the consistent between both drivers and this configuration option, ML2/OVN needs to disable the "mcast_flood_unregistered" configuration in the other_config column from the Logical Switch table when igmp_snooping_enable is True. [0] https://opendev.org/openstack/neutron/src/branch/master/neutron/conf/agent/ovs_conf.py#L36-L47 To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1904399/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
