Comment 0 for bug 1965297

The history to this request is as follows; bug 1916024 fixed an issue that subsequently had to be reverted due to a regression that it introduced (see bug 1927868) and the original issue can once again present itself in that keepalived is unable to send GARP on the qg port until the port is marked as UP by neutron which in loaded environments can sometimes take longer than keepalived will wait (e.g. when an l3-agent is restarted on a host that has hundreds of routers). The reason why qg- ports are marked as DOWN is because of the patch landed as part of bug 1859832 and as I understand it there is now consensus from upstream [1] to revert that patch as well and a better solution is needed to fix that particular issue. I have not found a bug open yet for the revert hence why I am opening this one.

[1] https://meetings.opendev.org/meetings/neutron_drivers/2022/neutron_drivers.2022-03-04-14.03.log.txt