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Re: [Partysip-dev] Partysip!

From: Aymeric Moizard
Subject: Re: [Partysip-dev] Partysip!
Date: Tue, 2 Jul 2002 16:13:52 +0200 (CEST)

>  I just wonder that maybe some proxy generate the branch by using a
> different scheme as partysip use,thus when partysip proxy receive the
> response generated by these proxies,it may not be able to analyse it?
> Maybe my understanding is not correct,hope for your correction!

The Via header is copied from the request to the answer!
This means that when a SIP proxy receives an answer, the
top via header has been created by the local SIP proxy.
If the proxy does not recognize its own Via header, then
the answer MUST be discarded.


>   Aymeric Moizard <address@hidden> ????????
> On Tue, 2 Jul 2002, [gb2312] ?? ?? wrote:
> >
> > hi ,all
> >
> > In the source code ,I see that partysip generates the branch plus
> > 'f' or 'l',is it means that it cannot cooperate with the proxy server ?
> I can't understand your question!
> partysip creates branch in a different way when it forward REQUEST
> "statelessly" (l) or "statefully" (f). This way, when a response
> comes back, the proxy just check for the presence of 'l' or 'f'
> and is able to distribute this answer to the correct module (slp or sfp).
> This makes the processing faster. Also, this prevent from forwarding
> unrecognized answers that do not belong to the proxy.
> Aymeric
> ---------------------------------
> Do You Yahoo!?
> ???????????????? ?????????????????????

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