Comment 3 for bug 1881995

It's not reproducible in stable/queens locally. The sysconf in my test env works fine.

How many routers or ports your network nodes have? I can image one issue is when your ovs-agent is busy, the re-scheduled router ports in new L3-agent may not setup properly. Or it takes too long time to config properly. That may gives you a phenomenon is L3-agent does not work fine.