Hybrid bridge should permanently keep MAC entries

[Sahid Orentino]

The linux bridge installed for the particular vif type ovs-hybrid should be configured to persistently keep the MAC learned from the RARP packets sent by QEMU when starting on destination node. That to avoid any break of the datapath during a live-migration.

That issue can be saying when using the opflex plugin.

  https://github.com/noironetworks/python-opflex-agent/commit/3163b9a2668f29dd1e52e9757b8c25ef48822765

[Sylvain Bauza (sylvain-bauza)]

Sahid, could you please clarify what steps you have in mind to fix the problem ? When you say "the linux bridge should learn the MAC addresses", you mean the Neutron L2 agent running on the compute nodes, right?

[Sahid Orentino (sahid-ferdjaoui)]

https://review.openstack.org/#/c/501132/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/501132
Committed: https://git.openstack.org/cgit/openstack/os-vif/commit/?id=fa4ff64b86e6e1b6399f7250eadbee9775c22d32
Submitter: Jenkins
Branch: master

commit fa4ff64b86e6e1b6399f7250eadbee9775c22d32
Author: Sahid Orentino Ferdjaoui <email address hidden>
Date: Wed Sep 6 03:35:58 2017 -0400

    ovs-hybrid: should permanently keep MAC entries

    The linux bridge installed for the particular vif type ovs-hybrid
    should be configured to persistently keep the MAC learned from the
    RARP packets sent by QEMU when starting on destination node. That to
    avoid any break of the datapath during a live-migration. That because
    at some point of the live-migration source and destination can be on
    a same L2 and we could have the destination bridge learning from source.

    Change-Id: I50775df3629a079e6ba6f167ebfa499ffa5c7cac
    Closes-Bug: 1715317
    Related-Bug: 1414559

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/pike
Review: https://review.openstack.org/505731

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/os-vif 1.8.0 release.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/505731
Committed: https://git.openstack.org/cgit/openstack/os-vif/commit/?id=4d108c1c8f4ea9c147c4cac59fe9ecebf73e3bd7
Submitter: Zuul
Branch: stable/pike

commit 4d108c1c8f4ea9c147c4cac59fe9ecebf73e3bd7
Author: Sahid Orentino Ferdjaoui <email address hidden>
Date: Wed Sep 6 03:35:58 2017 -0400

    ovs-hybrid: should permanently keep MAC entries

    The linux bridge installed for the particular vif type ovs-hybrid
    should be configured to persistently keep the MAC learned from the
    RARP packets sent by QEMU when starting on destination node. That to
    avoid any break of the datapath during a live-migration. That because
    at some point of the live-migration source and destination can be on
    a same L2 and we could have the destination bridge learning from source.

    Change-Id: I50775df3629a079e6ba6f167ebfa499ffa5c7cac
    Closes-Bug: 1715317
    Related-Bug: 1414559
    (cherry picked from commit fa4ff64b86e6e1b6399f7250eadbee9775c22d32)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/os-vif 1.7.1 release.