Comment 24 for bug 1866445

Hi, folks, I think https://review.opendev.org/#/c/666991/ + https://review.opendev.org/#/c/712640/ is current best solution to this issue although MAC learning doesn't work. Actually, MAC learning can't fix L3 flood (for that case, learnt MAC is qrouter MAC, not VM MAC because DVR changed source VM MAC to gateway MAC)

@Darragh O'Reilly (darragh-oreilly), for the case you mentioned (a subnet which isn't added a router), it also doesn't have flood, https://review.opendev.org/#/c/666991/ + https://review.opendev.org/#/c/712640/ installed egress direct flows for all the ports including qrouter, local VMs and remote VMs no matter if their subnets are added to a router or not.

So so far, I propose you folks use https://review.opendev.org/#/c/666991/ + https://review.opendev.org/#/c/712640/, I have verified it works well in our environment.