** Also affects: os-vif
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1933517
Title:
[RFE][OVN] Create an intermediate OVS bridge between VM and
intergration bridge to improve the live-migration process
Status in neutron:
New
Status in os-vif:
New
Bug description:
When live migrating network sensitive VMs, the communication is
broken.
This is similar to [1] but in OVN the vif-plugged events are directly
controller by the Neutron server, not by the OVS/DHCP agents.
The problem lies in when the destination chassis creates the needed OF
rules for the destination VM port. Same as in OVS, the VM port is
created when the instance is unpaused. At this moment the VM continues
sending packets through the interface but OVN didn't finish the
configuration.
Related BZs:
- OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1903653
- OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1872937
- OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1966512
[1]https://bugs.launchpad.net/neutron/+bug/1901707
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