[Serusers] SER has problems matching ACKs to replies
Jiri Kuthan
jiri at iptel.org
Mon Apr 7 22:41:31 CEST 2003
Maxim,
neither did I find a reason why the ACK is not matched. I might be
wrong but my guess is that it is a config issue -- are you sure it
enters t_relay in your script?
-Jiri
At 09:19 PM 4/7/2003, Maxim Sobolev wrote:
>Folks,
>
>I found that in the stateful mode, SER is having troubles matching
>ACKs to negative replies when Vovida B2BUA (1.5.0) is used as one
>UA, while Cisco ATA 186 as another one. Following is a dump of the
>session illustrating the problem. As you can see, SER keeps
>retransmiting 480, despite receiving properly formed ACKs. Does
>anybody have any ideas what the problem might be?
>
>-Maxim
>P.S. I am also seeing in the logs the following warnings:
>
>Apr 7 12:05:28 demo ser[86090]: WARNING: sip_msg_cloner: header body ignored: 4096
>
>
>B2BUA->SER
>
>INVITE sip:16045215277 at demo.portaone.com:5060;transport=udp;user=phone SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>cisco-GUID: 200546447-2237180178-1764455078-2518034476
>CSeq: 2 INVITE
>Max-Forwards: 10
>Expires: 300
>Contact: <sip:380442466396 at 64.180.102.72:5061;user=phone>
>User-Agent: PortaSIP (030401b)
>Content-Type: application/sdp
>Content-Length: 309
>o=380442466396 20916528 20916528 IN IP4 192.168.1.20
>s=ATA186 Call
>c=IN IP4 193.111.9.226
>t=0 0
>m=audio 14000 RTP/AVP 4 8 0 101
>a=rtpmap:4 G723/8000/1
>a=rtpmap:8 PCMA/8000/1
>a=rtpmap:0 PCMU/8000/1
>a=rtpmap:101 telephone-event/8000
>a=fmtp:101 0-15
>a=direction:active
>a=oldmediaip:192.168.1.20
>
>SER->B2BUA
>
>SIP/2.0 100 trying -- your call is important to us
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Sip EXpress router (0.8.10 (i386/freebsd))
>Content-Length: 0
>
>SER->ATA
>
>INVITE sip:16045215277 at 172.17.1.127:5060;user=phone;transport=udp SIP/2.0
>Record-Route: <sip:16045215277 at 64.180.102.72;branch=0>
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bK56f9.3c3c97acad0bdb329284be13e26ccc54.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>cisco-GUID: 200546447-2237180178-1764455078-2518034476
>CSeq: 2 INVITE
>Max-Forwards: 9
>Expires: 300
>Contact: <sip:380442466396 at 64.180.102.72:5061;user=phone>
>User-Agent: PortaSIP (030401b)
>Content-Type: application/sdp
>Content-Length: 309
>o=380442466396 20916528 20916528 IN IP4 192.168.1.20
>s=ATA186 Call
>c=IN IP4 193.111.9.226
>t=0 0
>m=audio 14000 RTP/AVP 4 8 0 101
>a=rtpmap:4 G723/8000/1
>a=rtpmap:8 PCMA/8000/1
>a=rtpmap:0 PCMU/8000/1
>a=rtpmap:101 telephone-event/8000
>a=fmtp:101 0-15
>a=direction:active
>a=oldmediaip:192.168.1.20
>
>ATA->SER
>
>SIP/2.0 100 Trying
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bK56f9.3c3c97acad0bdb329284be13e26ccc54.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 0
>
>ATA->SER
>
>SIP/2.0 183 Session Progress
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bK56f9.3c3c97acad0bdb329284be13e26ccc54.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 201
>Content-Type: application/sdp
>o=16045215277 1110 1110 IN IP4 172.17.1.127
>s=ATA186 Call
>c=IN IP4 64.180.102.72
>t=0 0
>m=audio 10000 RTP/AVP 4 101
>a=rtpmap:4 G723/8000/1
>a=rtpmap:101 telephone-event/8000
>a=fmtp:101 0-15
>
>SER->B2BUA
>
>SIP/2.0 183 Session Progress
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 221
>Content-Type: application/sdp
>o=16045215277 1110 1110 IN IP4 172.17.1.127
>s=ATA186 Call
>c=IN IP4 64.180.102.72
>t=0 0
>m=audio 10000 RTP/AVP 4 101
>a=rtpmap:4 G723/8000/1
>a=rtpmap:101 telephone-event/8000
>a=fmtp:101 0-15
>a=direction:active
>
>ATA->SER
>
>SIP/2.0 480 Temporarily Not Available
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bK56f9.3c3c97acad0bdb329284be13e26ccc54.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 0
>
>SER->B2BUA
>
>SIP/2.0 480 Temporarily Not Available
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 0
>
>B2BUA->SER
>
>ACK sip:16045215277 at demo.portaone.com:5060;transport=udp;user=phone SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 ACK
>Max-Forwards: 70
>Content-Length: 0
>
>SER->ATA
>
>ACK sip:16045215277 at 172.17.1.127:5060;user=phone;transport=udp SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bKbc52.5db2fe1211adfdd0d5db3db6e2295344.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 ACK
>Max-Forwards: 69
>Content-Length: 0
>
>SER->B2BUA
>
>SIP/2.0 480 Temporarily Not Available
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 0
>
>B2BUA->SER
>
>ACK sip:16045215277 at demo.portaone.com:5060;transport=udp;user=phone SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 ACK
>Max-Forwards: 70
>Content-Length: 0
>
>SER->ATA
>
>ACK sip:16045215277 at 172.17.1.127:5060;user=phone;transport=udp SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bKbc52.5db2fe1211adfdd0d5db3db6e2295344.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 ACK
>Max-Forwards: 69
>Content-Length: 0
>
>SER->B2BUA
>
>SIP/2.0 480 Temporarily Not Available
>Via: SIP/2.0/UDP 64.180.102.72:5061
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 INVITE
>Server: Cisco ATA 186 v2.15 ata18x (030401b)
>Content-Length: 0
>
>B2BUA->SER
>
>ACK sip:16045215277 at demo.portaone.com:5060;transport=udp;user=phone SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 ACK
>Max-Forwards: 70
>Content-Length: 0
>
>SER->ATA
>
>ACK sip:16045215277 at 172.17.1.127:5060;user=phone;transport=udp SIP/2.0
>Via: SIP/2.0/UDP 64.180.102.72;branch=z9hG4bKbc52.5db2fe1211adfdd0d5db3db6e2295344.0
>Via: SIP/2.0/UDP 64.180.102.72:5061
>To: <sip:121 at 64.180.102.72;user=phone>;tag=2698540533
>From: <sip:380442466396 at 64.180.102.72:5061;user=phone>;tag=4505a91c4165b3ffb1b4df0ff79c2904
>Call-ID: 3135130751 at 192.168.1.20
>CSeq: 2 ACK
>Max-Forwards: 69
>Content-Length: 0
>
>[the last 3 repeat until timeout hits]
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--
Jiri Kuthan http://iptel.org/~jiri/
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