[Serusers] SER has problems matching ACKs to replies
Maxim Sobolev
sobomax at portaone.com
Mon Apr 7 21:19:51 CEST 2003
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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