Public bug reported: After https://github.com/openstack/neutron/commit/efa8dd08957b5b6b1a05f0ed412ff00462a9f216 this patch, I saw unexpected vlan interruption after live migration.
The steps to reproduce the problem is simple, first create two vm01, vm02 on compute01 and compute02 separately, then live migrate vm02 to compute01, after it completes live migrate vm02 to compute02. After this you saw vm01 cannot access vm02. And ovs-appctl dpif/dump-flows br-int saw flow from vm01 to vm02 are dropped. I am now suspecting the following code are never executed https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py#L685 because for nova port are removed before delete port get called. ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1880455 Title: interrupted vlan connection after live migration Status in neutron: New Bug description: After https://github.com/openstack/neutron/commit/efa8dd08957b5b6b1a05f0ed412ff00462a9f216 this patch, I saw unexpected vlan interruption after live migration. The steps to reproduce the problem is simple, first create two vm01, vm02 on compute01 and compute02 separately, then live migrate vm02 to compute01, after it completes live migrate vm02 to compute02. After this you saw vm01 cannot access vm02. And ovs-appctl dpif/dump-flows br-int saw flow from vm01 to vm02 are dropped. I am now suspecting the following code are never executed https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py#L685 because for nova port are removed before delete port get called. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1880455/+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

