[Kamailio-Users] Kamailio 1.4.2 : Weird Retransmission

Klaus Darilion klaus.mailinglists at pernau.at
Tue Dec 9 12:27:33 CET 2008


Hi!

1. Not the ACK, but the 200 Ok will stop retransmission. I suspect that 
the 200 ok is not identified as belonging to the INVITE transaction.

Try this:

1. before t_relay() activate a certain reply_route (t_on_reply("3"))
2. put some xlog in the the default reply route

onreply_route {
     xlog("===========================");
     xlog("default reply route ...\n");
     xlog("response: $$rm = $rm\n");
     xlog("response: $mb\n");
     xlog("===========================");
}

3. put some xlog in the reply route you activated with t_on_reply()

onreply_route[3] {
     xlog("===========================");
     xlog("reply route 3 ...\n");
     xlog("response: $$rm = $rm\n");
     xlog("response: $mb\n");
     xlog("===========================");
}

4. watch the log output

If both reply routes are exectued then kamailio successfully matched the 
reply to the response. If only the default reply route is executed then 
the transaction matching failed.

Try only with a single call (not 1000 calls/s) first.

regards
klaus

Aurelien Grimaud schrieb:
> Hi, I am using kamailio 1.4.2 and testing it with sipp.
> one sipp is client a uac (port 5066), the other is a uas (port 5063).
> kamailio is using 5060.
> 
> I am generating 100 calls per second for 1000 calls and message were 
> retransmitted 4 times.
> 
> Here is a tcpdump of sip packets.
> Can anyone tell me why there is an INVITE retransmission at 
> 16:16:38.627198 though the ACK for invite was received at 16:16:38.126096 ?
> Is there a known problem with retransmission timers ?
> 
> 16:16:38.120384 IP 192.168.168.33.5066 > 192.168.168.33.5060: SIP, 
> length: 579
> E.._.. at .@.f....!...!.....K..INVITE sip:otest at testg5 SIP/2.0
> Via: SIP/2.0/UDP 127.0.0.1:5066;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 70
> Expires: 180
> Subject: Performance Test
> Content-Type: application/sdp
> Content-Length:   188
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 8925 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-11,16
> 
> 16:16:38.123426 IP 192.168.168.33.5060 > 192.168.168.33.5066: SIP, 
> length: 325
> E..a.. at .@.g....!...!.....M..SIP/2.0 100 Giving a try
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;branch=z9hG4bK-23096-730-1;received=192.168.168.33
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Server: Kamailio (1.4.2-notls (i386/linux))
> Content-Length: 0
> 
> 
> 16:16:38.123554 IP 192.168.168.33.5060 > 192.168.168.33.5063: SIP, 
> length: 731
> E..... at .@.fZ...!...!........INVITE sip:otest at testg5 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Expires: 180
> Subject: Performance Test
> Content-Type: application/sdp
> Content-Length:   188
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 8925 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-11,16
> 
> 16:16:38.123830 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 451
> E..... at .@.gz...!...!.......pSIP/2.0 180 Ringing
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.0, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:38.124169 IP 192.168.168.33.5060 > 192.168.168.33.5066: SIP, 
> length: 393
> E..... at .@.g....!...!.......6SIP/2.0 180 Ringing
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:38.124326 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 634
> E..... at .@.f....!...!.......'SIP/2.0 200 OK
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.0, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Type: application/sdp
> Content-Length:   153
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 6004 RTP/AVP 0 8
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> 
> 16:16:38.124883 IP 192.168.168.33.5060 > 192.168.168.33.5066: SIP, 
> length: 581
> E..a.. at .@.f....!...!.....M..SIP/2.0 200 OK
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:192.168.168.33:5063>
> Content-Type: application/sdp
> Content-Length:   153
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 6004 RTP/AVP 0 8
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> 
> 16:16:38.125532 IP 192.168.168.33.5066 > 192.168.168.33.5060: SIP, 
> length: 427
> E..... at .@.g....!...!.......XACK sip:192.168.168.33:5063 SIP/2.0
> Via: SIP/2.0/UDP 127.0.0.1:5066;branch=z9hG4bK-23096-730-11
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696
> Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 70
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:38.126096 IP 192.168.168.33.5060 > 192.168.168.33.5063: SIP, 
> length: 521
> E..%.. at .@.g,...!...!........ACK sip:192.168.168.33:5063 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.2
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-11
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:38.627198 IP 192.168.168.33.5060 > 192.168.168.33.5063: SIP, 
> length: 731
> E..... at .@.fZ...!...!........INVITE sip:otest at testg5 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Expires: 180
> Subject: Performance Test
> Content-Type: application/sdp
> Content-Length:   188
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 8925 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-11,16
> 
> 16:16:38.627677 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 474
> E..... at .@.gc...!...!........SIP/2.0 180 Ringing
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.2, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-11
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:38.627970 IP 192.168.168.33.5060 > 192.168.168.33.5066: SIP, 
> length: 416
> E..... at .@.g....!...!.......MSIP/2.0 180 Ringing
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-11
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:39.642356 IP 192.168.168.33.5060 > 192.168.168.33.5063: SIP, 
> length: 731
> E..... at .@.fZ...!...!........INVITE sip:otest at testg5 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Expires: 180
> Subject: Performance Test
> Content-Type: application/sdp
> Content-Length:   188
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 8925 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-11,16
> 
> 16:16:39.642587 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 474
> E..... at .@.gc...!...!........SIP/2.0 180 Ringing
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.2, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-11
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:39.643723 IP 192.168.168.33.5060 > 192.168.168.33.5066: SIP, 
> length: 416
> E..... at .@.g....!...!.......MSIP/2.0 180 Ringing
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-11
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>;tag=17278SIPpTag01696;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:39.797641 IP 192.168.168.33.5066 > 192.168.168.33.5060: SIP, 
> length: 434
> E..... at .@.g....!...!......._BYE sip:127.0.0.1:5063 SIP/2.0
> Via: SIP/2.0/UDP 127.0.0.1:5066;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 70
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:39.798436 IP 192.168.168.33.5060 > 127.0.0.1.5063: SIP, length: 528
> E..,.. at .@.P....!............BYE sip:127.0.0.1:5063 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:39.798535 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 394
> E..... at .@.g....!...!.......7SIP/2.0 200 OK
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:39.798814 IP 192.168.168.33.5060 > 192.168.168.33.5066: SIP, 
> length: 336
> E..l.. at .@.g....!...!.....X..SIP/2.0 200 OK
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:40.257973 IP 192.168.168.33.5060 > 127.0.0.1.5063: SIP, length: 528
> E..,.. at .@.P....!............BYE sip:127.0.0.1:5063 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:40.258080 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 394
> E..... at .@.g....!...!.......7SIP/2.0 200 OK
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:41.285493 IP 192.168.168.33.5060 > 127.0.0.1.5063: SIP, length: 528
> E..,.. at .@.P....!............BYE sip:127.0.0.1:5063 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:41.285593 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 394
> E..... at .@.g....!...!.......7SIP/2.0 200 OK
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: <sip:127.0.0.1:5063>
> Content-Length: 0
> 
> 
> 16:16:41.695686 IP 192.168.168.33.5060 > 192.168.168.33.5063: SIP, 
> length: 731
> E..... at .@.fZ...!...!........INVITE sip:otest at testg5 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bKcb7d.7c08af34.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-1
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:otest at testg5>
> Call-ID: 730-23096-127.0.0.1
> CSeq: 1 INVITE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Expires: 180
> Subject: Performance Test
> Content-Type: application/sdp
> Content-Length:   188
> 
> v=0
> o=user1 53655765 2353687637 IN IP4 127.0.0.1
> s=-
> c=IN IP4 127.0.0.1
> t=0 0
> m=audio 8925 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-11,16
> 
> 16:16:43.338592 IP 192.168.168.33.5060 > 127.0.0.1.5063: SIP, length: 528
> E..,.. at .@.P....!............BYE sip:127.0.0.1:5063 SIP/2.0
> Record-Route: <sip:192.168.168.33;lr=on;ftag=23096SIPpTag09730>
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0
> Via: SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: sip:sipp at 127.0.0.1:5066
> Max-Forwards: 69
> Subject: Performance Test
> Content-Length: 0
> 
> 
> 16:16:43.338785 IP 192.168.168.33.5063 > 192.168.168.33.5060: SIP, 
> length: 408
> E..... at .@.g....!...!.......ESIP/2.0 200 OK
> Via: SIP/2.0/UDP 192.168.168.33;branch=z9hG4bK9b7d.0423bf25.0, 
> SIP/2.0/UDP 
> 127.0.0.1:5066;received=192.168.168.33;branch=z9hG4bK-23096-730-46
> From: sipp <sip:730-23096-127.0.0.1 at 127.0.0.1:5066>;tag=23096SIPpTag09730
> To: sut <sip:service at 192.168.168.33:5060>;tag=17278SIPpTag01696
> Call-ID: 730-23096-127.0.0.1
> CSeq: 2 BYE
> Contact: <sip:127.0.0.1:5063;transport=UDP>
> Content-Length: 0
> 
> 
> 
> 
> 
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