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Get ‘500 Internal Server Error’ during SIP INVITE - cause 44

Get ‘500 Internal Server Error’ during SIP INVITE - cause 44

Have you ever seen anything like this before?  It usually works, but intermittently, we see calls get rejected.  It somehow seems related to high loads on the router.  We reduced the occurrences by changing our code to throttle the number of SIP INVITEs we send, but this doesn’t scale well.  Once it occurs, the only way to clean it up is to do a shut/no shut on the voice-port associated to SIP INVITE.

Any suggestions on how we can proceed to debug this issue?

BACKGROUND:

Cisco 2811 running (C2800NM-ADVENTERPRISEK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2)

NAME: "2811 chassis", DESCR: "2811 chassis" PID: CISCO2811

NAME: "9 Port FE Switch on Slot 0 SubSlot 1", DESCR: "9 Port FE Switch" PID: HWIC-D-9ESW

NAME: "WIC/VIC/HWIC 1 Power Daughter Card", DESCR: "9-Port HWIC-ESW Power Daughter Card" PID: ILPM-8

NAME: "Two port E1 voice interface daughtercard on Slot 0 SubSlot 2", DESCR: "Two port E1 voice interface daughtercard" PID: VWIC-2MFT-E1=

NAME: "Two port E1 voice interface daughtercard on Slot 0 SubSlot 3", DESCR: "Two port E1 voice interface daughtercard" PID: VWIC-2MFT-E1=

NAME: "PVDMII DSP SIMM with four DSPs on Slot 0 SubSlot 4", DESCR: "PVDMII DSP SIMM with four DSPs" PID: PVDM2-64

NAME: "High Density Voice2 Network module with on board two port interface  on Slot 1", DESCR: "High Density Voice2 Network module with on board two port interface " PID: NM-HDV2-2T1/E1

NAME: "2nd generation two port EM voice interface daughtercard on Slot 1 SubSlot 0", DESCR: "2nd generation two port EM voice interface daughtercard" PID: VIC2-2E/M

NAME: "PVDMII DSP SIMM with four DSPs on Slot 1 SubSlot 2", DESCR: "PVDMII DSP SIMM with four DSPs" PID: PVDM2-64

NAME: "PVDMII DSP SIMM with four DSPs on Slot 1 SubSlot 3", DESCR: "PVDMII DSP SIMM with four DSPs" PID: PVDM2-64

NAME: "PVDMII DSP SIMM with four DSPs on Slot 1 SubSlot 4", DESCR: "PVDMII DSP SIMM with four DSPs" PID: PVDM2-64

NAME: "PVDMII DSP SIMM with four DSPs on Slot 1 SubSlot 5", DESCR: "PVDMII DSP SIMM with four DSPs" PID: PVDM2-64

WIRESHARK:

No.     Time        Source                Destination           Protocol Info

      2 0.057246    10.194.154.136        171.68.115.156        SIP      Status: 100 Trying

Frame 2 (471 bytes on wire, 471 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 100 Trying

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41a-100875-517454db

        From: <sip:200@171.68.115.156:5060>;tag=82f4a00-9c7344ab-13c4-45026-41a-4ea64c5a-41a

        To: <sip:19900001479191922@10.194.154.136:5060>

        Date: Wed, 08 Sep 2010 20:47:49 GMT

        Call-ID: 80e4f50-9c7344ab-13c4-45026-41a-10aff3f4-41a

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow-Events: telephone-event

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Length: 0

No.     Time        Source                Destination           Protocol Info

      3 0.071428    10.194.154.136        171.68.115.156        SIP/SDP  Status: 183 Session Progress, with session description

Frame 3 (1109 bytes on wire, 1109 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 183 Session Progress

   Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41a-100875-517454db

        From: <sip:200@171.68.115.156:5060>;tag=82f4a00-9c7344ab-13c4-45026-41a-4ea64c5a-41a

        To: <sip:19900001479191922@10.194.154.136:5060>;tag=48645D8-1175

        Date: Wed, 08 Sep 2010 20:47:49 GMT

        Call-ID: 80e4f50-9c7344ab-13c4-45026-41a-10aff3f4-41a

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER

        Allow-Events: telephone-event

        Remote-Party-ID: <sip:19900001479191922@10.194.154.136>;party=called;screen=no;privacy=off

            [Expert Info (Note/Undecoded): Unrecognised SIP header (Remote-Party-ID)]

                [Message: Unrecognised SIP header (Remote-Party-ID)]

                [Severity level: Note]

                [Group: Undecoded]

        Contact: <sip:19900001479191922@10.194.154.136:5060>

        Supported: sdp-anat

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Type: application/sdp

        Content-Disposition: session;handling=required

        Content-Length: 264

    Message Body

        Session Description Protocol

            Session Description Protocol Version (v): 0

            Owner/Creator, Session Id (o): CiscoSystemsSIP-GW-UserAgent 8759 6996 IN IP4 10.194.154.136

                Owner Username: CiscoSystemsSIP-GW-UserAgent

                Session ID: 8759

                Session Version: 6996

                Owner Network Type: IN

                Owner Address Type: IP4

                Owner Address: 10.194.154.136

            Session Name (s): SIP Call

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Time Description, active time (t): 0 0

                Session Start Time: 0

                Session Stop Time: 0

            Media Description, name and address (m): audio 18710 RTP/AVP 18 101

                Media Type: audio

                Media Port: 18710

                Media Protocol: RTP/AVP

                Media Format: ITU-T G.729

                Media Format: DynamicRTP-Type-101

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Media Attribute (a): rtpmap:18 G729/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 18

                MIME Type: G729

                Sample Rate: 8000

            Media Attribute (a): fmtp:18 annexb=no

                Media Attribute Fieldname: fmtp

                Media Format: 18 [G729]

                Media format specific parameters: annexb=no

            Media Attribute (a): rtpmap:101 telephone-event/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 101

               MIME Type: telephone-event

                Sample Rate: 8000

            Media Attribute (a): fmtp:101 0-16

                Media Attribute Fieldname: fmtp

                Media Format: 101 [telephone-event]

                Media format specific parameters: 0-16

No.     Time        Source                Destination           Protocol Info

      4 0.089917    10.194.154.136        171.68.115.156        SIP/SDP  Status: 200 OK, with session description

Frame 4 (1116 bytes on wire, 1116 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 200 OK

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41a-100875-517454db

        From: <sip:200@171.68.115.156:5060>;tag=82f4a00-9c7344ab-13c4-45026-41a-4ea64c5a-41a

        To: <sip:19900001479191922@10.194.154.136:5060>;tag=48645D8-1175

        Date: Wed, 08 Sep 2010 20:47:49 GMT

        Call-ID: 80e4f50-9c7344ab-13c4-45026-41a-10aff3f4-41a

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER

        Allow-Events: telephone-event

        Remote-Party-ID: <sip:19900001479191922@10.194.154.136>;party=called;screen=no;privacy=off

            [Expert Info (Note/Undecoded): Unrecognised SIP header (Remote-Party-ID)]

                [Message: Unrecognised SIP header (Remote-Party-ID)]

                [Severity level: Note]

                [Group: Undecoded]

        Contact: <sip:19900001479191922@10.194.154.136:5060>

        Supported: replaces

        Supported: sdp-anat

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Type: application/sdp

        Content-Disposition: session;handling=required

        Content-Length: 264

    Message Body

        Session Description Protocol

            Session Description Protocol Version (v): 0

            Owner/Creator, Session Id (o): CiscoSystemsSIP-GW-UserAgent 8759 6996 IN IP4 10.194.154.136

                Owner Username: CiscoSystemsSIP-GW-UserAgent

                Session ID: 8759

                Session Version: 6996

                Owner Network Type: IN

                Owner Address Type: IP4

                Owner Address: 10.194.154.136

            Session Name (s): SIP Call

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Time Description, active time (t): 0 0

                Session Start Time: 0

                Session Stop Time: 0

            Media Description, name and address (m): audio 18710 RTP/AVP 18 101

                Media Type: audio

                Media Port: 18710

                Media Protocol: RTP/AVP

                Media Format: ITU-T G.729

                Media Format: DynamicRTP-Type-101

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Media Attribute (a): rtpmap:18 G729/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 18

                MIME Type: G729

                Sample Rate: 8000

            Media Attribute (a): fmtp:18 annexb=no

                Media Attribute Fieldname: fmtp

                Media Format: 18 [G729]

                Media format specific parameters: annexb=no

            Media Attribute (a): rtpmap:101 telephone-event/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 101

                MIME Type: telephone-event

                Sample Rate: 8000

            Media Attribute (a): fmtp:101 0-16

                Media Attribute Fieldname: fmtp

                Media Format: 101 [telephone-event]

                Media format specific parameters: 0-16

No.     Time        Source                Destination           Protocol Info

     7 1.661867    10.194.154.136        171.68.115.156        SIP      Status: 100 Trying

Frame 7 (469 bytes on wire, 469 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 100 Trying

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41c-100eca-13593e22

        From: <sip:200@171.68.115.156:5060>;tag=82f4b98-9c7344ab-13c4-45026-41c-669825d-41c

        To: <sip:19900001479191916@10.194.154.136:5060>

        Date: Wed, 08 Sep 2010 20:47:51 GMT

        Call-ID: 80e5138-9c7344ab-13c4-45026-41c-3f6bfc7-41c

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow-Events: telephone-event

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Length: 0

No.     Time        Source                Destination           Protocol Info

      8 1.676056    10.194.154.136        171.68.115.156        SIP/SDP  Status: 183 Session Progress, with session description

Frame 8 (1107 bytes on wire, 1107 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 183 Session Progress

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41c-100eca-13593e22

        From: <sip:200@171.68.115.156:5060>;tag=82f4b98-9c7344ab-13c4-45026-41c-669825d-41c

        To: <sip:19900001479191916@10.194.154.136:5060>;tag=4864C1C-10F8

        Date: Wed, 08 Sep 2010 20:47:51 GMT

        Call-ID: 80e5138-9c7344ab-13c4-45026-41c-3f6bfc7-41c

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER

        Allow-Events: telephone-event

        Remote-Party-ID: <sip:19900001479191916@10.194.154.136>;party=called;screen=no;privacy=off

            [Expert Info (Note/Undecoded): Unrecognised SIP header (Remote-Party-ID)]

                [Message: Unrecognised SIP header (Remote-Party-ID)]

                [Severity level: Note]

                [Group: Undecoded]

        Contact: <sip:19900001479191916@10.194.154.136:5060>

        Supported: sdp-anat

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Type: application/sdp

        Content-Disposition: session;handling=required

        Content-Length: 264

    Message Body

        Session Description Protocol

            Session Description Protocol Version (v): 0

            Owner/Creator, Session Id (o): CiscoSystemsSIP-GW-UserAgent 7991 6854 IN IP4 10.194.154.136

                Owner Username: CiscoSystemsSIP-GW-UserAgent

                Session ID: 7991

                Session Version: 6854

                Owner Network Type: IN

                Owner Address Type: IP4

                Owner Address: 10.194.154.136

            Session Name (s): SIP Call

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Time Description, active time (t): 0 0

                Session Start Time: 0

                Session Stop Time: 0

            Media Description, name and address (m): audio 17660 RTP/AVP 18 101

                Media Type: audio

                Media Port: 17660

                Media Protocol: RTP/AVP

                Media Format: ITU-T G.729

                Media Format: DynamicRTP-Type-101

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Media Attribute (a): rtpmap:18 G729/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 18

                MIME Type: G729

                Sample Rate: 8000

            Media Attribute (a): fmtp:18 annexb=no

                Media Attribute Fieldname: fmtp

                Media Format: 18 [G729]

                Media format specific parameters: annexb=no

            Media Attribute (a): rtpmap:101 telephone-event/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 101

                MIME Type: telephone-event

                Sample Rate: 8000

            Media Attribute (a): fmtp:101 0-16

                Media Attribute Fieldname: fmtp

                Media Format: 101 [telephone-event]

                Media format specific parameters: 0-16

No.     Time        Source                Destination           Protocol Info

     10 1.700567    10.194.154.136        171.68.115.156        SIP      Status: 100 Trying

Frame 10 (471 bytes on wire, 471 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 100 Trying

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41c-100f04-2fde97a9

        From: <sip:200@171.68.115.156:5060>;tag=82f4d30-9c7344ab-13c4-45026-41c-5c20b753-41c

        To: <sip:19900001479191923@10.194.154.136:5060>

        Date: Wed, 08 Sep 2010 20:47:51 GMT

        Call-ID: 80e5320-9c7344ab-13c4-45026-41c-7fbe4865-41c

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow-Events: telephone-event

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Length: 0

No.     Time        Source                Destination           Protocol Info

     11 1.726376    10.194.154.136        171.68.115.156        SIP/SDP  Status: 200 OK, with session description

Frame 11 (1114 bytes on wire, 1114 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 200 OK

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41c-100eca-13593e22

        From: <sip:200@171.68.115.156:5060>;tag=82f4b98-9c7344ab-13c4-45026-41c-669825d-41c

        To: <sip:19900001479191916@10.194.154.136:5060>;tag=4864C1C-10F8

        Date: Wed, 08 Sep 2010 20:47:51 GMT

        Call-ID: 80e5138-9c7344ab-13c4-45026-41c-3f6bfc7-41c

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER

        Allow-Events: telephone-event

        Remote-Party-ID: <sip:19900001479191916@10.194.154.136>;party=called;screen=no;privacy=off

            [Expert Info (Note/Undecoded): Unrecognised SIP header (Remote-Party-ID)]

                [Message: Unrecognised SIP header (Remote-Party-ID)]

                [Severity level: Note]

                [Group: Undecoded]

        Contact: <sip:19900001479191916@10.194.154.136:5060>

        Supported: replaces

        Supported: sdp-anat

        Server: Cisco-SIPGateway/IOS-12.x

        Content-Type: application/sdp

        Content-Disposition: session;handling=required

        Content-Length: 264

    Message Body

        Session Description Protocol

            Session Description Protocol Version (v): 0

            Owner/Creator, Session Id (o): CiscoSystemsSIP-GW-UserAgent 7991 6854 IN IP4 10.194.154.136

                Owner Username: CiscoSystemsSIP-GW-UserAgent

                Session ID: 7991

                Session Version: 6854

                Owner Network Type: IN

                Owner Address Type: IP4

                Owner Address: 10.194.154.136

            Session Name (s): SIP Call

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Time Description, active time (t): 0 0

                Session Start Time: 0

                Session Stop Time: 0

            Media Description, name and address (m): audio 17660 RTP/AVP 18 101

                Media Type: audio

                Media Port: 17660

                Media Protocol: RTP/AVP

                Media Format: ITU-T G.729

                Media Format: DynamicRTP-Type-101

            Connection Information (c): IN IP4 10.194.154.136

                Connection Network Type: IN

                Connection Address Type: IP4

                Connection Address: 10.194.154.136

            Media Attribute (a): rtpmap:18 G729/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 18

                MIME Type: G729

                Sample Rate: 8000

            Media Attribute (a): fmtp:18 annexb=no

                Media Attribute Fieldname: fmtp

                Media Format: 18 [G729]

                Media format specific parameters: annexb=no

            Media Attribute (a): rtpmap:101 telephone-event/8000

                Media Attribute Fieldname: rtpmap

                Media Format: 101

                MIME Type: telephone-event

                Sample Rate: 8000

            Media Attribute (a): fmtp:101 0-16

                Media Attribute Fieldname: fmtp

                Media Format: 101 [telephone-event]

                Media format specific parameters: 0-16

No.     Time        Source                Destination           Protocol Info

     13 1.727645    10.194.154.136        171.68.115.156        SIP      Status: 500 Internal Server Error

Frame 13 (526 bytes on wire, 526 bytes captured)

Ethernet II, Src: Cisco_0d:3c:c0 (00:1f:ca:0d:3c:c0), Dst: HewlettP_06:71:52 (00:1f:29:06:71:52)

Internet Protocol, Src: 10.194.154.136 (10.194.154.136), Dst: 171.68.115.156 (171.68.115.156)

User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)

Session Initiation Protocol

    Status-Line: SIP/2.0 500 Internal Server Error

    Message Header

        Via: SIP/2.0/UDP 171.68.115.156:5060;rport;branch=z9hG4bK-41c-100f04-2fde97a9

        From: <sip:200@171.68.115.156:5060>;tag=82f4d30-9c7344ab-13c4-45026-41c-5c20b753-41c

        To: <sip:19900001479191923@10.194.154.136:5060>;tag=4864C50-3C3

        Date: Wed, 08 Sep 2010 20:47:51 GMT

        Call-ID: 80e5320-9c7344ab-13c4-45026-41c-7fbe4865-41c

        CSeq: 1 INVITE

            Sequence Number: 1

            Method: INVITE

        Allow-Events: telephone-event

        Server: Cisco-SIPGateway/IOS-12.x

        Reason: Q.850;cause=44

            Reason Protocols: Q.850

            Cause: 44(0x2c)[Requested circuit/channel not available]

        Content-Length: 0

Thanks!

-John

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Re: Get ‘500 Internal Server Error’ during SIP INVITE - caus

Since it appears you are a Cisco Employee, my recommendation is that you use the many internal resource available to you (including, but not limited to) , like TAC access, internal forums, team leaders, etc.

This not to give the casual reader, the impression that the best source of support at Cisco is a customer's public forum.

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