[Users] using multiple DNS servers

[Bogdan-Andrei Iancu]

Hi Will,

the 200 OK retransmission is done by the end client (UAS) and not by the 
proxy. Check if the ACK actually gets to the UAS. Maybe the change of 
DNS server changes the routing...

regards,
bogdan

Will Quan wrote:
> I have a primary and secondary dns server setup in resolv.conf, with a 
> timeout option of 1 second.
> The idea is when the primary fails, my secondary server picks up the 
> workload.
>
> When openser is running, and primary dns is down, I am seeing several 
> re-transmissions of 200 OK (invite) to my originator *after* openser 
> has finished processing ACK. I was thinking the final responses would 
> stop reTX after the ACK was t_relayed.
>
> Have you seen such behavior? And better yet- Is there a solution for this?
> Thanks, Will
>
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