Simon,
SIPp is currently not smart enough to know when a transaction is started
and stopped. If you use the trunk version you can append an offset to the
branch parameter in the CANCEL message branch=[branch-2], which should fix
your problem.
Charles
[EMAIL PROTECTED] wrote on 05/24/2007 03:57:38 AM:
> Hi,
> I've trawled through the mailing list archive to see if this is an
> existing/old problem, but can't see anything....
>
> I'm using SIPp v2.0, version 20070426
>
> The problem I've noticed is that the branch value changes when using
> the [branch] parameter - sending a CANCEL for an INVITE transaction.
>
> For example:-
>
> <send retrans="500">
> <![CDATA[
>
> INVITE sip:[EMAIL PROTECTED] SIP/2.0
> Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
> :
> :
>
> ]]>
> </send>
>
> <recv response="180" rrs="true" rtd="true">
> </recv>
>
> <send retrans="500">
> <![CDATA[
>
> CANCEL sip:[EMAIL PROTECTED] SIP/2.0
> Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
> :
> :
> ]]>
> </send>
>
> This will result in a branch parameter with a stepped message index.
>
> Is this a known problem?
>
> I can, of course, work around this with [last_Via:] for a single via
> line, or egrep'ing the VIA lines from the 180 response, but wondered
> if this has been seen by anyone else. My interpretation was that the
> [branch] parameter would be unchanged before the 200-ACK for the
> INVITE had been exchanged???
>
> Thanks in advance for any info/insights.
>
> Regards,
> /Simon
>
> Prova Live.com - din snabba, personliga hemsida med allt du kan
> önska dig på ett enda ställe. på ett enda ställe.
>
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