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Re: [reSIProcate] Performance of a P2P-over-SIP program using resiprocate


Hi again!

Here is a sequence of messages that leads to a retransmission.

And the raw (suspect) ACK.

========================
No.     Time        Source                Destination           Protocol Info
978 117.582339 192.168.61.132 192.168.61.130 SIP/XML Request: INVITE sip:spzero@xxxxxxxxxxxxxx:12005

Frame 978 (626 bytes on wire, 626 bytes captured)
Ethernet II, Src: Vmware_5f:e3:82 (00:0c:29:5f:e3:82), Dst: Vmware_f2:ad:ed (00:0c:29:f2:ad:ed) Internet Protocol, Src: 192.168.61.132 (192.168.61.132), Dst: 192.168.61.130 (192.168.61.130)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 12005 (12005)
Session Initiation Protocol
    Request-Line: INVITE sip:spzero@xxxxxxxxxxxxxx:12005 SIP/2.0
        Method: INVITE
        [Resent Packet: False]
    Message Header
        Via: SIP/2.0/UDP 192.168.61.132:5060;branch=z9hG4bK-4721-321-0
        Max-Forwards: 70
        Contact: <sip:brynn@xxxxxxxxxxxxxx:5060>
        To: spzero <sip:spzero@xxxxxxxxxxxxxx:12005>
        From: brynn <sip:brynn@xxxxxxxxxxxxxx:5060>;tag=321
        Call-ID: 321-4721@xxxxxxxxxxxxxx
        CSeq: 1 INVITE
        Allow: INVITE, ACK, MESSAGE
        Content-Type: text/xml
        Content-Length: 186
    Message body

No.     Time        Source                Destination           Protocol Info
996 118.151202 192.168.61.130 192.168.61.132 SIP/XML Status: 606 Not Acceptable

Frame 996 (394 bytes on wire, 394 bytes captured)
Ethernet II, Src: Vmware_f2:ad:ed (00:0c:29:f2:ad:ed), Dst: Vmware_5f:e3:82 (00:0c:29:5f:e3:82) Internet Protocol, Src: 192.168.61.130 (192.168.61.130), Dst: 192.168.61.132 (192.168.61.132)
User Datagram Protocol, Src Port: 12005 (12005), Dst Port: 5060 (5060)
Session Initiation Protocol
    Status-Line: SIP/2.0 606 Not Acceptable
        Status-Code: 606
        [Resent Packet: False]
    Message Header
        Via: SIP/2.0/UDP 192.168.61.132:5060;branch=z9hG4bK-4721-321-0
        To: "spzero"<sip:spzero@xxxxxxxxxxxxxx:12005>;tag=f1adff71
        From: "brynn"<sip:brynn@xxxxxxxxxxxxxx:5060>;tag=321
        Call-ID: 321-4721@xxxxxxxxxxxxxx
        CSeq: 1 INVITE
        Content-Type: text/xml
        Content-Length: 50
    Message body

No.     Time        Source                Destination           Protocol Info
997 118.151497 192.168.61.132 192.168.61.130 SIP Request: ACK sip:spzero@xxxxxxxxxxxxxx:12005

Frame 997 (331 bytes on wire, 331 bytes captured)
Ethernet II, Src: Vmware_5f:e3:82 (00:0c:29:5f:e3:82), Dst: Vmware_f2:ad:ed (00:0c:29:f2:ad:ed) Internet Protocol, Src: 192.168.61.132 (192.168.61.132), Dst: 192.168.61.130 (192.168.61.130)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 12005 (12005)
Session Initiation Protocol
    Request-Line: ACK sip:spzero@xxxxxxxxxxxxxx:12005 SIP/2.0
        Method: ACK
        [Resent Packet: False]
    Message Header
        Via: SIP/2.0/UDP 192.168.61.132:5060;branch=z9hG4bK-4721-321-0
        To: spzero <sip:spzero@xxxxxxxxxxxxxx:12005>;tag=f1adff71
        From: brynn <sip:brynn@xxxxxxxxxxxxxx:5060>;tag=321
        Call-ID: 321-4721@xxxxxxxxxxxxxx
        CSeq: 1 ACK
        Content-Length: 0

No.     Time        Source                Destination           Protocol Info
1013 118.687362 192.168.61.130 192.168.61.132 SIP/XML Status: 606 Not Acceptable

Frame 1013 (394 bytes on wire, 394 bytes captured)
Ethernet II, Src: Vmware_f2:ad:ed (00:0c:29:f2:ad:ed), Dst: Vmware_5f:e3:82 (00:0c:29:5f:e3:82) Internet Protocol, Src: 192.168.61.130 (192.168.61.130), Dst: 192.168.61.132 (192.168.61.132)
User Datagram Protocol, Src Port: 12005 (12005), Dst Port: 5060 (5060)
Session Initiation Protocol
    Status-Line: SIP/2.0 606 Not Acceptable
        Status-Code: 606
        [Resent Packet: True]
        [Suspected resend of frame: 996]
    Message Header
        Via: SIP/2.0/UDP 192.168.61.132:5060;branch=z9hG4bK-4721-321-0
        To: "spzero"<sip:spzero@xxxxxxxxxxxxxx:12005>;tag=f1adff71
        From: "brynn"<sip:brynn@xxxxxxxxxxxxxx:5060>;tag=321
        Call-ID: 321-4721@xxxxxxxxxxxxxx
        CSeq: 1 INVITE
        Content-Type: text/xml
        Content-Length: 50
    Message body
===================================
Raw packet No.997
===================================
0000  00 0c 29 f2 ad ed 00 0c 29 5f e3 82 08 00 45 00   ..).....)_....E.
0010  01 3d 00 00 40 00 40 11 3d 59 c0 a8 3d 84 c0 a8   .=..@.@.=Y..=...
0020  3d 82 13 c4 2e e5 01 29 73 bf 41 43 4b 20 73 69   =......)s.ACK si
0030  70 3a 73 70 7a 65 72 6f 40 31 39 32 2e 31 36 38   p:spzero@xxxxxxx
0040  2e 36 31 2e 31 33 30 3a 31 32 30 30 35 20 53 49   .61.130:12005 SI
0050  50 2f 32 2e 30 0d 0a 56 69 61 3a 20 53 49 50 2f   P/2.0..Via: SIP/
0060  32 2e 30 2f 55 44 50 20 31 39 32 2e 31 36 38 2e   2.0/UDP 192.168.
0070  36 31 2e 31 33 32 3a 35 30 36 30 3b 62 72 61 6e   61.132:5060;bran
0080  63 68 3d 7a 39 68 47 34 62 4b 2d 34 37 32 31 2d   ch=z9hG4bK-4721-
0090  33 32 31 2d 30 0d 0a 54 6f 3a 20 73 70 7a 65 72   321-0..To: spzer
00a0  6f 20 3c 73 69 70 3a 73 70 7a 65 72 6f 40 31 39   o <sip:spzero@19
00b0  32 2e 31 36 38 2e 36 31 2e 31 33 30 3a 31 32 30   2.168.61.130:120
00c0  30 35 3e 3b 74 61 67 3d 66 31 61 64 66 66 37 31   05>;tag=f1adff71
00d0  0d 0a 46 72 6f 6d 3a 20 62 72 79 6e 6e 20 3c 73   ..From: brynn <s
00e0  69 70 3a 62 72 79 6e 6e 40 31 39 32 2e 31 36 38   ip:brynn@xxxxxxx
00f0  2e 36 31 2e 31 33 32 3a 35 30 36 30 3e 3b 74 61   .61.132:5060>;ta
0100  67 3d 33 32 31 0d 0a 43 61 6c 6c 2d 49 44 3a 20   g=321..Call-ID:
0110  33 32 31 2d 34 37 32 31 40 31 39 32 2e 31 36 38   321-4721@xxxxxxx
0120  2e 36 31 2e 31 33 32 0d 0a 43 53 65 71 3a 20 31   .61.132..CSeq: 1
0130  20 41 43 4b 0d 0a 43 6f 6e 74 65 6e 74 2d 4c 65    ACK..Content-Le
0140  6e 67 74 68 3a 20 30 0d 0a 0d 0a                  ngth: 0....
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