Hello everyone, After migrating from stein to train, I am facing again with live migration issues because live migrated vm stop to respond to ping. On Stein I solved following a workaround for enabling legacy port binding. On centos 7 train I have not found any workaround for solving this issue yet. I think it is very important issue because train is the last release for centos 7 and it could be a bridge for moving from centos 7 to centos 8. I tried to talk on irc but seems some patches are not backported to train. So the question is: which is the strategy for moving from stein to a newer release ? On which version of openstack the multiport binding works fine in live migration case ? How can upgrade from stein to an openstack release where I can forget the above issue? Many thanks and Regards. Ignazio