Comment 75 for bug 1815989

this is already fixed on master we need to do the backport but at this point that is all that is left. its also fix in neutron at this point. the neutron backport has alreay been done i belive. to train. i have also fixed ovn for kernel ovs and smubmitted patches for vhost-user with ovn last weeks.

docker exec nova_libvirt virsh qemu-monitor-command $ instance --hmp announce_self. will be a semi effective workaround when using ml2/ovs. it will have no effect for ovn as it has a different unerlying cause specificaly it looses packets because the ovs flows are not installed to sending arp packets does not help with that.