[reSIProcate] Sending 100 trying

[Michael Baj]

Has anyone decided on what might be the proper fix for the 100 trying
problem?

 

Thanks,

Mike

 

________________________________

From: jason.fischl at gmail.com [mailto:jason.fischl at gmail.com] On Behalf
Of Jason Fischl
Sent: Tuesday, May 16, 2006 10:56 AM
To: Scott Godin
Cc: Michael Baj; resiprocate-devel at list.sipfoundry.org
Subject: Re: [reSIProcate] Sending 100 trying

 

Yeah, I think there's a problem here as Scott describes. I am a bit
concerned about the effects of not transitioning from Trying state to
Proceeding though. I'll take a closer look at this today. Good find!

Michael, can you try setting Timer:T100=0 before you run your test and
see if the 100s go out? This should be a good workaround for you. 

Thanks
Jason





On 5/16/06, Scott Godin <slgodin at icescape.com> wrote:

Yeah - I just looked at the code, I think something is not right.
According to RFC3261 a Server Invite Transaction does not have a Trying
state - it is supposed to be initialized into the Proceeding state.  If
we just change the timer code to check for Proceeding, then a 100 will 
be sent even if the TU sends a response.  Perhaps the best solution is
to just remove the transition to Proceeding on line 266 (despite
RFC3261) - and use the Trying state for Server Invite Transactions for
the purpose of detecting if the TU has responded or not.  The rest of 
the code looks setup to handle this.

Does anyone else have any thoughts on this?

Scott


> -----Original Message-----
> From: Michael Baj [mailto: mbaj at bridgeport-networks.com
<mailto:mbaj at bridgeport-networks.com> ]
> Sent: Tuesday, May 16, 2006 9:38 AM
> To: Scott Godin
> Subject: RE: [reSIProcate] Sending 100 trying
>
> Scott,
>
> If this is the case, then I am still at a loss as to why I am not 
> receiving the 100 Trying.  From the resip code snippets below, it
looks
> like the TransactionState is constructed with the Trying state, but
> changes the state to Proceeding right away.  Doesn't this prevent the 
> 100 Trying timer from being sent?
>
> Mike
>
> -----Original Message-----
> From: Scott Godin [mailto:slgodin at icescape.com]
> Sent: Tuesday, May 16, 2006 9:34 AM 
> To: Michael Baj; resiprocate-devel at list.sipfoundry.org
> Subject: RE: [reSIProcate] Sending 100 trying
>
> StackThread will take care of calling process for you - what you are 
> doing here looks fine.
>
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