Re: PRACK: Does non-200 response cease re-transmission ofreliable 18x?

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Hi, 

>>The UAC is unaware if the PRACK has served its purpose since it
doesn't know if rejected by middle box or the UAS 
>>performing the retries.
>
>That's not the UAC's problem. The only reasone a PRACK has a response
is because you had to fit it into one of the state 
>machines defined in RFC3261. That doesnt mean we go a sover analyse its
response.

So, how do you propose that we solve the issue if the PRACK was rejected
by an intermediate, and the UAS never got it?

Even if it's not the UAC's "problem", the UAC can help to ensure that
the UAS really gets the PRACK.

I agree that we shouldn't start to analyse responses in detail. The
proposal is simply that a non-200 response does not cease the
re-transmission of the reliable response.

Regards,

Christer

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