After some discussion how portbinding handling could be improved during live migration, the following idea came up: Why not bind a port to both, the source and the target host during migration? This would allow us to set the portbinding for the target already in pre_live_migration. Doing so, we could verify that portbinding works and get around issues where the instance is stuck in error state after a migration [2]. Also things like Migration between 2 l2 agents would work out [2] and the restrictions with the macvtap agent on live migration can be lifted [3]. Of course also some changes to nova are required - but first we need to prepare neutron for this. I was able to write down a first spec with some information. Looking forward to discuss that at this summit with a few folks. https://review.openstack.org/#/c/309416/ Andreas [1] https://review.openstack.org/#/c/309416/ [2] http://lists.openstack.org/pipermail/openstack-dev/2016-April/092073.html [3] https://bugs.launchpad.net/neutron/+bug/1550400, -- ----- Andreas (IRC: scheuran)