[OpenSIPS-Users] treply in failure route causes retransmissions

Bogdan-Andrei Iancu bogdan at voice-system.ro
Tue Apr 13 12:24:41 CEST 2010


Hi Brett,

in the failing case, maybe the received ACK does not match the 
transaction, so opensips keeps retransmitting - could you post the  
received INVITE, the sent 503 and the received ACK ?

Regards,
Bogdan

Brett Nemeroff wrote:
> Hello all,
> I'm pretty sure I'm missing something obvious here..
>
> After hitting a failure route, I'm seeing retransmissions with a
> t_reply. If I clear out the failure_route, opensips generates a 500,
> which is sent out and it's happy with. Almost like the 500 (which is
> internally generated) is sent statelessly, from a failure route?
> Opensips sits on a server with a private IP and is NATed. I've set the
> outside IP address in the advertised_address config param.
>
>
> failure_route[1] {
>         xlog("L_INFO","In failure route");
> }
>
>
> (opensips at 10.249.126.19)
> 0.052840 10.249.126.19 -> 1.2.3.4 SIP/SDP Request: INVITE
> sip:74211234 at 1.2.3.4, with session description
>   0.061683 1.2.3.4 -> 10.249.126.19 SIP Status: 100 Trying
>   0.062550 1.2.3.4 -> 10.249.126.19 SIP Status: 503 Service Unavailable
>   0.062637 10.249.126.19 -> 1.2.3.4 SIP Request: ACK sip:74211234 at 1.2.3.4
>   0.062724 10.249.126.19 -> 5.6.7.8  SIP Status: 500 Service Unavailable
>   0.100239  5.6.7.8 -> 10.249.126.19 SIP Request: ACK sip:1234 at sip.mydomain.com
> (No retransmissions.. everyone happy)
>
>
> ---------------
>
> Now if I put a t_reply in there..
> failure_route[1] {
>         xlog("L_INFO","In failure route");
>         t_reply("503","Cannot route");
>         exit;
> }
>
>
>   0.042059 10.249.126.19 -> 1.2.3.4 SIP/SDP Request: INVITE
> sip:74211234 at 1.2.3.4, with session description
>   0.051466 1.2.3.4 -> 10.249.126.19 SIP Status: 100 Trying
>   0.051919 1.2.3.4 -> 10.249.126.19 SIP Status: 503 Service Unavailable
>   0.052222 10.249.126.19 -> 1.2.3.4 SIP Request: ACK sip:742112324 at 1.2.3.4
>   0.052436 10.249.126.19 -> 5.6.7.8  SIP Status: 503 Cannot route
>   0.089601 5.6.7.8 -> 10.249.126.19 SIP Request: ACK sip:1234 at sip.mydomain.com
>   1.030506 10.249.126.19 -> 5.6.7.8  SIP Status: 503 Cannot route
>   2.030507 10.249.126.19 -> 5.6.7.8  SIP Status: 503 Cannot route
>   4.030615 10.249.126.19 -> 5.6.7.8  SIP Status: 503 Cannot route
> (not happy)
>
>
> Any ideas??
> Thanks!
> -Brett
>
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>
>   


-- 
Bogdan-Andrei Iancu
www.voice-system.ro




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