Re: [Users] branch parameter in ACK set to zero?

[Tim Madorma]

Hi Bogdan,

I have attached an html file that shows the call trace (note that the
OpenSER is 65.185.232.62:5061in the flow). I will send the log file
and openser.cfg in a separate email since it would put me over the 40K
limit.

thanks,
Tim

On 5/30/07, Bogdan-Andrei Iancu <[EMAIL PROTECTED]> wrote:

Hi Tim,

the VIA branch param must not be 0, indeed. Could you provide an network
trace for the entire call and the debug log for level 9?

regards,
bogdan

Tim Madorma wrote:
> Hi,
>
> In testing with OpenSER 1.2 I noticed that the branch parameter of the
> Via in the ACK to 200 OK has a value of zero. This does not seem
> right. From 16.6 of RFC-3261:
>
>         The proxy MUST insert a Via header field value into the copy
>         before the existing Via header field values.  The construction
>         of this value follows the same guidelines of Section 8.1.1.7.
>         This implies that the proxy will compute its own branch
>         parameter, which will be globally unique for that branch, and
>         contain the requisite magic cookie.
>
> Please advise.
>
> thanks,
> Tim
>
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Sip Scenario Trace File: VMO_branch_0.pcap Generated: Wed May 30 13:27:50 2007 Traced on: Wed May 30 13:09:27 2007 Created by:sip_scenario.exe version=1.2.7 65.185.233.55:6110 65.185.232.62:5061 65.185.233.183:5060 | | | <Call><PFrame><Time> | | | | |<------(sdp) INVITE F1<| 1 PF:1 13:09:27.7678 | | | | |>F2 100 Giving a try ->| 1 PF:2 13:09:27.7762 | | | |<------(sdp) INVITE F3<| | 1 PF:3 13:09:27.7766 | | | |>F4 100 Trying ------->| | 1 PF:4 13:09:27.8878 | | | |>F5 180 RINGING ------>| | 1 PF:5 13:09:27.9978 | | | | |>F6 180 RINGING ------>| 1 PF:6 13:09:27.9992 | | | |>F7 200 OK ----------->| | 1 PF:7 13:09:28.1578 | | | | |>F8 200 OK ----------->| 1 PF:8 13:09:28.1593 | | | | |<-------------- ACK F9<| 1 PF:9 13:09:28.1596 | | | |<------------- ACK F10<| | 1 PF:10 13:09:28.1616 SIP MESSAGE 1 65.185.233.183:5060() -> 65.185.232.62:5061() UDP Frame 1 30/May/07 13:09:27.7678 TimeFromPreviousSipFrame=0.0000 TimeFromStart=0.0000 INVITE sip:[EMAIL PROTECTED]:5061 SIP/2.0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061> Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Contact: sip:[EMAIL PROTECTED]:5060 Diversion: <sip:[EMAIL PROTECTED]>;reason="unconditional";counter=1 Max-Forwards: 70 Supported: 100rel Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,REFER,UPDATE P-Asserted-Identity: "Elvis Presley"<sip:[EMAIL PROTECTED]>\ User-Agent: BTS10200/900-04.05.13.V07(SIA) Content-Type: application/sdp Content-Length: 151 v=0 o=alice 2890844526 2890844526 IN IP4 client.atlanta.example.com s=- c=IN IP4 192.0.2.101 t=0 0 m=audio 49172 RTP/AVP 0 a=rtpmap:0 PCMU/8000 SIP MESSAGE 2 65.185.232.62:5061() -> 65.185.233.183:5060() UDP Frame 2 30/May/07 13:09:27.7762 TimeFromPreviousSipFrame=0.0084 TimeFromStart=0.0084 SIP/2.0 100 Giving a try Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061> Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Server: OpenSER (1.2.0-notls (i386/solaris)) Content-Length: 0 SIP MESSAGE 3 65.185.232.62:5061() -> 65.185.233.55:6110() UDP Frame 3 30/May/07 13:09:27.7766 TimeFromPreviousSipFrame=0.0005 TimeFromStart=0.0089 INVITE sip:[EMAIL PROTECTED]:6110 SIP/2.0 Record-Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Via: SIP/2.0/UDP 65.185.232.62:5061;branch=z9hG4bK87bc.dca5.0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061> Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Contact: sip:[EMAIL PROTECTED]:5060 Diversion: <sip:[EMAIL PROTECTED]>;reason="unconditional";counter=1 Max-Forwards: 69 Supported: 100rel Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,REFER,UPDATE P-Asserted-Identity: "Elvis Presley"<sip:[EMAIL PROTECTED]>\ User-Agent: BTS10200/900-04.05.13.V07(SIA) Content-Type: application/sdp Content-Length: 151 v=0 o=alice 2890844526 2890844526 IN IP4 client.atlanta.example.com s=- c=IN IP4 192.0.2.101 t=0 0 m=audio 49172 RTP/AVP 0 a=rtpmap:0 PCMU/8000 SIP MESSAGE 4 65.185.233.55:6110() -> 65.185.232.62:5061() UDP Frame 4 30/May/07 13:09:27.8878 TimeFromPreviousSipFrame=0.1111 TimeFromStart=0.1200 SIP/2.0 100 Trying Via: SIP/2.0/UDP 65.185.232.62:5061;branch=z9hG4bK87bc.dca5.0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Content-Length: 0 SIP MESSAGE 5 65.185.233.55:6110() -> 65.185.232.62:5061() UDP Frame 5 30/May/07 13:09:27.9978 TimeFromPreviousSipFrame=0.1100 TimeFromStart=0.2301 SIP/2.0 180 RINGING Via: SIP/2.0/UDP 65.185.232.62:5061;branch=z9hG4bK87bc.dca5.0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Record-Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Contact: <sip:65.185.233.55:6110;transport=UDP> Content-Length: 0 Subject: BTS CID Responder SIP MESSAGE 6 65.185.232.62:5061() -> 65.185.233.183:5060() UDP Frame 6 30/May/07 13:09:27.9992 TimeFromPreviousSipFrame=0.0013 TimeFromStart=0.2314 SIP/2.0 180 RINGING Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Record-Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Contact: <sip:65.185.233.55:6110;transport=UDP> Content-Length: 0 Subject: BTS CID Responder SIP MESSAGE 7 65.185.233.55:6110() -> 65.185.232.62:5061() UDP Frame 7 30/May/07 13:09:28.1578 TimeFromPreviousSipFrame=0.1586 TimeFromStart=0.3900 SIP/2.0 200 OK Via: SIP/2.0/UDP 65.185.232.62:5061;branch=z9hG4bK87bc.dca5.0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Record-Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Contact: <sip:65.185.233.55:6110;transport=UDP> Content-Length: 0 Subject: BTS CID Responder SIP MESSAGE 8 65.185.232.62:5061() -> 65.185.233.183:5060() UDP Frame 8 30/May/07 13:09:28.1593 TimeFromPreviousSipFrame=0.0016 TimeFromStart=0.3916 SIP/2.0 200 OK Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE Record-Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Contact: <sip:65.185.233.55:6110;transport=UDP> Content-Length: 0 Subject: BTS CID Responder SIP MESSAGE 9 65.185.233.183:5060() -> 65.185.232.62:5061() UDP Frame 9 30/May/07 13:09:28.1596 TimeFromPreviousSipFrame=0.0003 TimeFromStart=0.3918 ACK sip:65.185.233.55:6110;transport=UDP SIP/2.0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 ACK Contact: sip:[EMAIL PROTECTED]:5060 Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Max-Forwards: 70 Subject: Performance Test Content-Length: 0 SIP MESSAGE 10 65.185.232.62:5061() -> 65.185.233.55:6110() UDP Frame 10 30/May/07 13:09:28.1616 TimeFromPreviousSipFrame=0.0020 TimeFromStart=0.3938 ACK sip:65.185.233.55:6110;transport=UDP SIP/2.0 Record-Route: <sip:65.185.232.62:5061;lr=on;ftag=1> Via: SIP/2.0/UDP 65.185.232.62:5061;branch=0 Via: SIP/2.0/UDP 65.185.233.183:5060 From: sipp <sip:[EMAIL PROTECTED]:5060>;tag=1 To: sut <sip:[EMAIL PROTECTED]:5061>;tag=6110 Call-ID: [EMAIL PROTECTED] CSeq: 1 ACK Contact: sip:[EMAIL PROTECTED]:5060 Max-Forwards: 69 Subject: Performance Test Content-Length: 0 P-hint: rr-enforced

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