I'm not sure that waiting on pre live migration step for neutron to schedule and apply DVR router on destination node would help to avoid connection loss: with legacy routers floating ips are actually assigned on controllers and this doesn't change when migrating. In DVR case floating ip is actually reassigned from one compute to another during migration.
I'm not sure that waiting on pre live migration step for neutron to schedule and apply DVR router on destination node would help to avoid connection loss: with legacy routers floating ips are actually assigned on controllers and this doesn't change when migrating. In DVR case floating ip is actually reassigned from one compute to another during migration.