[SR-Users] dns failover and branches

Daniel-Constantin Mierla miconda at gmail.com
Wed Jul 19 10:27:27 CEST 2017



On 19.07.17 10:23, Juha Heinanen wrote:
> I did more some more tests.
>
> The branch route was properly executed before INVITE to the first SRV
> destination was sent.  The branch route set some headers, branch flags,
> etc.  After the first SRV destination failed, INVITE was sent to the
> second SRV destination and the branch route was not re-executed.  In the
> second INVITE, headers that were added in branch route were correctly
> preserved. However, branch flags that were set in the branch route were
> not preserved.  As result, processing of positive reply from the second
> srv destination failed.
>
> This looks like a bug to me.  Also branch flags that were set in the
> branch route before the first INVITE was sent out should have been
> preserved for processing of the second INVITE.
>
>
Is the branch parameter in the top Via of the second INVITE sent out
different than for the first INVITE (last digit incremented by 1 or so)?

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
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