Comment 3 for bug 1998235

Hi, we have the exact Octavia scenario with @alexperreault

@alexperreault stated 2 issues. I think only the 1st issue is a a duplicate of bug #1774459. For the 1st issue, we are aware that there is no easy solution on the code side. It is OK. We can accept to use Octavia without HA (Active/Standby)

But at least we hope to use it with Single Mode.

Like @alexperreault mentioned:

`I think the permanent ARP entry logic needs to be revised. Maybe when deleting a permanent ARP entry for an allowed address pair IP address, neutron should double check if that same allowed address pair IP address exists on another neutron port and update the DVR router with this ARP entry.`

This may be more easier to handle. What do you think about this @slaweq ?

Now we have to run a helper cron script to repair allowed address pairs and it is not cool.

ML2/OVN backend is not a solution for us too. It is not easy to migrate production clusters from ML2/OVS to ML2/OVN.

Should we warn people on documentation before using DVR ML2/OVS about these arp problems?

Thanks