solucao de problemas no session initiation protocol (sip)
DESCRIPTION
Análise e troubleshooting no Protocolo SIP.TRANSCRIPT
Cisco Confidential © 2011 Cisco and/or its affiliates. All rights reserved. 1
Webcast com Especialistas em Tecnologia da Comunidade Cisco:
Solução de Problemas envolvendo Session Initiation Protocol (SIP)
Michelle Jardim System Sales Engineer
Data: 06/12/2012
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2
• O especialista de hoje é a Engenheira de Sistema da Cisco Michelle Jardim
• Poderá perguntar questões sobre Solução de Problemas envolvendo Session Initiation Protocol (SIP)
Michelle Jardim
CCIE Voice
34960
2
Foto do
Especialista
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3
A apresentação incluirá algumas perguntas para o público.
Convidamos você a participar ativamente das perguntas que faremos durante a sessão
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 4
Se desejar baixar uma cópia da apresentação de hoje, vá ao endereço indicado no chat ou use este link
https://supportforums.cisco.com/docs/DOC-28412
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5
a) Administrador de redes
b) Técnico de informática
c) Analista de Sistemas
d) Cargos gerenciais
e) Outro
f) Atualmente não trabalho
Qual o seu cargo em seu emprego atual?
Cisco Confidential 6 © 2011 Cisco and/or its affiliates. All rights reserved.
Use o painel de perguntas e respostas (Q&A) para perguntar ao especialista agora. Ele começará a responder.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7
Michelle Jardim
Data: 06/12/2012
CCIE Voice 34960
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8
• Visão geral do Session Initiation Protocol (SIP)
• Ferramentas de Troubleshooting
• Estudos de Caso
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 9
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 10
• Protocolo de sinalização usado para estabelecer, gerenciar e terminar sessões em uma rede IP
• Protocolo definido na RFC 3261
• Extendido em diversas outras RFCs
• Baseado em mensagens ASCII
• Equipamentos finais (Endpoints) são conhecidos como User Agents
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 11
• Mensagens SIP
• Pedidos e Respostas (Requests and Responses)
• Cabeçalhos (Headers)
• Negociação de Mídia
• Session Description Protocol - SDP
• Modelo Oferta/Resposta (Offer/Answer)
• Early Offer x Delayed Offer
• Early Media
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 12
• User Agent Clients (UAC) enviam Pedidos para os User Agent Servers (UAS)
• User Agent Servers enviam Respostas aos Pedidos
• A maioria dos dispositivos SIP são ao mesmo tempo UAC e UAS (ambos iniciam e aceitam Pedidos)
• Unified CM e CUBE são Back-to-Back User Agents (B2BUA)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 13
• INVITE - Um usuário ou serviço está sendo convidado a participar de uma sessão SIP
• ACK - Confirma que um cliente recebeu uma Resposta final para um Pedido de INVITE
• BYE - Termina uma sessão existente; pode ser enviada por qualquer User Agent (em uma sessão de múltiplos usuários)
• CANCEL – Cancela Pedidos pendentes; não finaliza sessões que já foram aceitas
• OPTIONS - Pergunta as capabilities de um servidor (Também utilizado como Keep Alive)
• REGISTER - Registra o User Agent no Registrar Server do domínio
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 14
• INFO (RFC 2976) - para enviar mais informações em um diálogo já estabelecido
• PRACK (RFC 3262) - para confirmar o recebimento de uma Resposta provisória a um Pedido.
• SUBSCRIBE (RFC 3265) – para informar que quer ser notificado se um evento específico ocorrer.
• NOTIFY (RFC 3265) - para notificar um assinante que um evento específico ocorreu.
• UPDATE (RFC 3311) - para atualizar parâmetros antes de uma Resposta final ao INVITE.
• MESSAGE (RFC 3428) - Mensagens Instâneas SIP
• REFER (RFC 3515) - para remeter um User Agent para se comunicar com outro User Agent
• PUBLISH (RFC 3903) - para enviar informações sobre status de um User Agent a um Presence Server
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 15
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bK1515b3154665
From: "Test User 1" <sip:[email protected]>;tag=97903bc0-43adcd-45510543
To: <sip:[email protected]>
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Call-Info: <sip:172.18.106.59:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
Cisco-Guid: 2081204224-3137452793-0000000466-0996807340
Session-Expires: 1800
P-Asserted-Identity: "Test User 1" <sip:[email protected]>
Contact: <sip:[email protected]:5060>;video;audio
Max-Forwards: 69
Content-Length: 864
Content-Type: application/sdp
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 16
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bK1515b3154665
From: "Test User 1" <sip:[email protected]>;tag=97903bc0-43adcd-45510543
To: <sip:[email protected]>
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Call-Info: <sip:172.18.106.59:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
Cisco-Guid: 2081204224-3137452793-0000000466-0996807340
Session-Expires: 1800
P-Asserted-Identity: "Test User 1" <sip:[email protected]>
Contact: <sip:[email protected]:5060>;video;audio
Max-Forwards: 69
Content-Length: 864
Content-Type: application/sdp
SIP Method
URI SIP Version
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INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bK1515b3154665
From: "Test User 1" <sip:[email protected]>;tag=97903bc0-43adcd-45510543
To: <sip:[email protected]>
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Call-Info: <sip:172.18.106.59:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
Cisco-Guid: 2081204224-3137452793-0000000466-0996807340
Session-Expires: 1800
P-Asserted-Identity: "Test User 1" <sip:[email protected]>
Contact: <sip:[email protected]:5060>;video;audio
Max-Forwards: 69
Content-Length: 864
Content-Type: application/sdp
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 18
Response
Code
Description Example
1xx Provisional – Request Received and
Continuing to Process Request
100 Trying
180 Ringing
183 Session Progress
2xx Success – Action was successfully received,
understood, and accepted
200 OK
202 Acceptable
3xx Redirection – Another SIP Element needs to
be contacted in order to complete the request
300 Multiple Choices
301 Moved Permanently
302 Moved Temporarily
4xx Client Error – Request contains bad syntax or
cannot be fulfilled at this server
401 Unauthorized
406 Not Acceptable
486 Busy Here
487 Request Terminated
488 Not Acceptable Here
5xx Server Error – Server failed to fulfill an
apparently valid request
503 Service Unavailable
6xx Global Failure – Request is invalid at any server 600 Busy Everywhere
603 Decline
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 19
Unified CM
INVITE
200 OK
Session Established
ACK
BYE
200 OK
Phone 1
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INVITE
200 OK
Session Established
Phone 1 Unified CM
ACK
BYE
200 OK
Phone 2
INVITE
200 OK
ACK
BYE
200 OK
CUBE
SBC (CUBE) SBC (CUBE)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 21
INVITE
200 OK
Phone 1
ACK
BYE
200 OK
Unified CM
CUBE
SBC (CUBE)
INVITE
200 OK
ACK
BYE
200 OK
INVITE
200 OK
ACK
BYE
200 OK
SIP SP
SBC
SP SBC
Session Established
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 22
• SIP utiliza o Session Description Protocol (SDP) (RFC 4566/3266/2327) para passar as informações de mídia.
• SIP usa o modelo Oferta/Resposta (Offer/Answer) descrito na RFC 3264 para negociar a mídia utilizando o SDP.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 23
• Um User Agent envia uma Oferta de SDP contendo toda as opções que pode negociar.
• SDP contém M linhas para cada media stream sendo negociado (Ex: áudio, vídeo, canal de conteúdo, etc)
• O outro User Agent envia uma Resposta de SDP que contém as mesmas ou parte das mesmas opções recebidas no pedido inicial.
• De acordo com a RFC 3264, “Para cada "m=" na Oferta, DEVE conter uma linha correspondente "m=" na Resposta. A Resposta deve conter o mesmo número de linhas "m=" contidas na Oferta.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 24
v=0
o=Cisco-SIPUA 26964 0 IN IP4 172.18.159.152
s=SIP Call
t=0 0
m=audio 29254 RTP/SAVP 0 8 18 102 9 116 124 101
c=IN IP4 172.18.159.152
a=crypto:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:102 L16/16000
a=rtpmap:9 G722/8000
a=rtpmap:116 iLBC/8000
a=fmtp:116 mode=20
a=rtpmap:124 ISAC/16000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
m=video 25466 RTP/AVP 97
c=IN IP4 172.18.159.152
b=TIAS:1000000
a=rtpmap:97 H264/90000
a=fmtp:97 profile-level-id=42801E
a=recvonly
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 25
v=0
o=CiscoSystemsCCM-SIP 2000 1 IN IP4 172.18.106.59
s=SIP Call
c=IN IP4 172.18.159.152
t=0 0
m=audio 30308 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=video 0 RTP/AVP 97
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 26
• O User Agent Client pode enviar uma Oferta de SDP dentro do INVITE - isto é denominado Early Offer.
• O User Agent Server pode enviar uma Oferta de SDP em uma mensagem de Resposta caso o INVITE não contenha uma Oferta de SDP - isto é denominado Delayed Offer.
• Para o Early Offer, a Resposta de SDP é enviada dentro de uma mensagem de Resposta ao INVITE.
• Para o Delayed Offer, a Reposta de SDP é enviada dentro da mensagem de Pedido ACK.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 27
INVITE with SDP - Offer
200 OK with SDP - Answer
Session Established
Phone 1 Unified CM
ACK (no SDP)
BYE
200 OK
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 28
INVITE (no SDP)
200 OK with SDP - Offer
Session Established
Phone 1 Unified CM
ACK with SDP - Answer
BYE
200 OK
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 29
• Delayed Offer não estabelece a mídia até a mensagem de 200 OK (ligação atendida)
• Caso a mídia seja requerida antes da ligação ser atendida, SIP executa o processo conhecido como Early Media
• Com o Early Media em uma ligação Delayed Offer, a Oferta de SDP é originada pelo User Agent Server dentro de uma mensagem de resposta Provisória (Ex: 183 Session Progress)
• O User Agent Client envia a Resposta de SDP dentro de uma mensagem de pedido PRACK (Definida na RFC 3262)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 30
INVITE (no SDP)
200 OK (INVITE) w/ SDP (should be same as answer)
Session Established
Phone 1 Unified CM
ACK
BYE
200 OK
183 Session Progress with SDP - Offer
PRACK with SDP - Answer
Media Stream Established
200 OK (PRACK)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 31
• Qualquer User Agent envolvido em uma ligação pode enviar um Re-INVITE em um diálogo existente para renegociar parâmetros de uma ligação.
• Não é possível enviar um Re-INVITE antes que uma mensagem de INVITE tenha recebido uma Resposta final.
• O método UPDATE também pode ser usado para renegociar, porém antes que uma Resposta final tenha sido recebida.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 32
• Re-INVITE – Terminando uma Sessão de Mídia
INVITE sip:[email protected]:49833;transport=tls SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK901f9c72c19221
From: "Paul Giralt" <sip:[email protected]>;tag=15462272~0d0d25d7-4931-4a07-83c6-
b82e2c213ca7-45545776
To: <sip:[email protected]>;tag=0022bdd6843100702aae8e5b-4be253be
Date: Wed, 11 Jan 2012 03:08:51 GMT
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 104 INVITE
Max-Forwards: 70
Expires: 180
Allow-Events: presence
Call-Info: <urn:x-cisco-remotecc:callinfo>; security= Authenticated; orientation= from; gci= 2-231448; call-
instance= 2
Remote-Party-ID: "Paul Giralt" <sip:[email protected]>;party=calling;screen=yes;privacy=off
Contact: <sip:[email protected]:5061;transport=tls>
Content-Type: application/sdp
Content-Length: 489
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 33
• Re-INVITE – Terminando uma Sessão de Mídia
v=0
o=CiscoSystemsCCM-SIP 15462272 2 IN IP4 172.18.106.59
s=SIP Call
c=IN IP4 0.0.0.0
t=0 0
m=audio 19594 RTP/SAVP 9 101
a=crypto:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXX
a=rtpmap:9 G722/8000
a=ptime:20
a=inactive
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=video 19444 RTP/AVP 126
b=TIAS:1000000
a=rtpmap:126 H264/90000
a=fmtp:126 profile-level-id=42801E;packetization-mode=1;level-asymmetry-allowed=1
a=inactive
a=mid:227796888
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 34
• Re-INVITE – Delayed Offer para reestabelecer uma nova mídia
INVITE sip:[email protected]:49833;transport=tls SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK901fac34c0fb1b
From: "Paul Giralt" <sip:[email protected]>;tag=15462272~0d0d25d7-4931-4a07-83c6-
b82e2c213ca7-45545776
To: <sip:[email protected]>;tag=0022bdd6843100702aae8e5b-4be253be
Date: Wed, 11 Jan 2012 03:08:52 GMT
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 106 INVITE
Max-Forwards: 70
Expires: 180
Allow-Events: presence
Call-Info: <urn:x-cisco-remotecc:callinfo>; security= NotAuthenticated; orientation= from; gci= 2-231448;
call-instance= 2
Remote-Party-ID: "Paul Giralt" <sip:[email protected]>;party=calling;screen=yes;privacy=off
Contact: <sip:[email protected]:5061;transport=tls>
Content-Length: 0
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 35
• Re-INVITE – Oferta na mensagem de resposta 200 OK
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK901fac34c0fb1b
From: "Paul Giralt" <sip:[email protected]>;tag=15462272~0d0d25d7-4931-4a07-83c6-b82e2c213ca7-
45545776
To: <sip:[email protected]>;tag=0022bdd6843100702aae8e5b-4be253be
Call-ID: [email protected]
Date: Wed, 11 Jan 2012 03:08:52 GMT
CSeq: 106 INVITE
Server: Cisco-CPCIUS/9.2.1
Contact: <sip:[email protected]:49833;transport=tls>
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE,INFO
Remote-Party-ID: "Paul Giralt" <sip:[email protected]>;party=called;id-
type=subscriber;privacy=off;screen=yes
Supported: replaces,join,sdp-anat,norefersub,extended-refer,X-cisco-callinfo,X-cisco-serviceuri,X-cisco-
escapecodes,X-cisco-service-control,X-cisco-srtp-fallback,X-cisco-monrec,X-cisco-config,X-cisco-sis-5.2.0,X-
cisco-xsi-8.5.1
Allow-Events: kpml,dialog
Recv-Info: conference
Recv-Info: x-cisco-conference
Content-Length: 788
Content-Type: application/sdp
Content-Disposition: session;handling=optional
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 36
• Re-INVITE – Oferta na mensagem de Resposta 200 OK v=0
o=Cisco-SIPUA 26259 2 IN IP4 10.116.101.41
s=SIP Call
t=0 0
m=audio 32518 RTP/SAVP 0 8 18 102 9 116 124 101
c=IN IP4 10.116.101.41
a=crypto:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=rtpmap:102 L16/16000
a=rtpmap:9 G722/8000
a=rtpmap:116 iLBC/8000
a=rtpmap:124 ISAC/16000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
m=video 17614 RTP/AVP 126 97
c=IN IP4 10.116.101.41
b=TIAS:2500000
a=rtpmap:126 H264/90000
a=fmtp:126 profile-level-id=42801F;packetization-mode=1;level-asymmetry-allowed=1
a=rtpmap:97 H264/90000
a=fmtp:97 profile-level-id=42801F;packetization-mode=0;level-asymmetry-allowed=1
a=sendrecv
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 37
• Re-INVITE – Resposta na mensagem de Pedido ACK
ACK sip:dbe40e44-0dfe-45f1-bd7f-
[email protected]:49833;transport=tls SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK901fb064465a06
From: "Paul Giralt" <sip:[email protected]>;tag=15462272~0d0d25d7-
4931-4a07-83c6-b82e2c213ca7-45545776
To: <sip:[email protected]>;tag=0022bdd6843100702aae8e5b-4be253be
Date: Wed, 11 Jan 2012 03:08:52 GMT
Call-ID: [email protected]
Max-Forwards: 70
CSeq: 106 ACK
Allow-Events: presence
Content-Type: application/sdp
Content-Length: 446
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 38
• Re-INVITE – Resposta na mensagem de Pedido ACK – Rejeitando Suporte a vídeo
v=0
o=CiscoSystemsCCM-SIP 15462272 3 IN IP4 172.18.106.59
s=SIP Call
t=0 0
m=audio 4000 RTP/SAVP 0
c=IN IP4 172.18.106.58
a=crypto:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXX
a=rtpmap:0 PCMU/8000
a=ptime:20
a=sendonly
m=video 0 RTP/AVP 126
c=IN IP4 10.116.101.50
b=TIAS:1000000
a=rtpmap:126 H264/90000
a=fmtp:126 profile-level-id=42801E;packetization-mode=1;level-asymmetry-allowed=1
a=mid:227796888
Cisco Confidential 39 © 2011 Cisco and/or its affiliates. All rights reserved.
Use o painel de perguntas e respostas (Q&A) para perguntar ao especialista agora. Ele começará a responder.
Cisco Confidential 40 © 2011 Cisco and/or its affiliates. All rights reserved.
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• Unified CM / SME Tools:
Real Time Monitoring Tool -> Session Trace
• TranslatorX
• Wireshark
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 42
• Permite procurar por uma chamada com base no número de origem ou de destino
• Não depende de CDRs
• Session trace apenas rastreia as sessões SIP, de forma detalhada
• Exibe as mensagens SIP completas e originais
• Utiliza tags de correlação para incluir todos os call legs relacionados com a chamada selecionada
• Só pode ser usado para chamadas cujos traces ainda estão no servidor (CUCM 9.0 permite visualizar traces que foram arquivados fora do servidor)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 43
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 44
• Diagrama do Fluxo da Chamada
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• Passe o mouse para obter informações sobre a mensagem
• Clique em “See SIP message” para ver a mensagem SIP original
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 46
• Detalhes da Mensagem SIP
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 47
• Analisa arquivos de traces SDI do serviço de CallManager
• Decodifica mensagens SIP, SCCP, H.323, MGCP e ISDN Q.931
• Lista de chamadas com base em mensagens de CDR nos Traces
• Pode gerar diagramas de multi-protocolos
• Capacidade avançada de filtragem
• Download para Windows, Mac OS X e Linux em:
http://translatorx.cisco.com/
• Guia sobre como habilitar e coletar via RTMT os traces do serviço de CallManager:
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml
NOTA: O TAC não suporta a ferramenta TranslatorX
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 48
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• Janela com Lista de Chamadas
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• Filtrando a Lista de Chamadas
Select Each Call and click
“Generate Filter” button
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• CDR
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• CDR
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• Filtros de Mensagens
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• Ferramenta Open Source de captura e análise de pacotes
• Disponível em http://www.wireshark.org
• Disponível para Windows, Mac OS X e UNIX / Linux
• Oferece análise de chamadas VoIP, incluindo SIP
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 57
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 58
• Análise de Chamada VoIP
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• Diagrama de Chamada VoIP
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• Ambos, CUCM e IOS, fornecem mecanismo para coletar uma captura de pacotes
• Como realizar uma coleta de pacote?
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 61
• Acesse CUCM via SSH
• Para começar a captura aplique o comando:
utils network capture file [file name] size all count 100000
Example:
utils network capture file CUCMCapture size all count 100000
• Se este comando é aplicado várias vezes com o mesmo nome de arquivo, CUCM irá automaticamente renomear o arquivo com “_” e o seguinte número.
• A captura parará depois que 100000 pacotes forem coletados ou se CTRL+C é pressionado.
• Executar o teste recriando o problema.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 62
• Faça download da captura usando um dos métodos abaixo:
• Se é CUCM 7.X ou versões seguintes, colete os arquivos de log via RTMT selecionando o serviço “Pacture Capture Logs” (listado na segunda página de serviços) durante o período da captura.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 63
• Se é CUCM 6.X ou versões anteriores, aplique o comando abaixo para enviar a captura para um servidor de SFTP:
file get activelog /platform/cli/[file name].cap
Example:
file get activelog /platform/cli/CUCMCapture.cap
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 64
• IP traffic Export feature permite capturar pacotes na interface de um roteador.
• Configuração:
• Utilização:
ip traffic-export profile CUBE_Debug mode capture
bidirectional
incoming access-list 101
outgoing access-list 101
interface GigabitEthernet0/0
ip traffic-export apply CUBE_Debug size 10000000
traffic-export interface g0/0 clear
traffic-export interface g0/0 start
traffic-export interface g0/0 stop
traffic-export interface g0/0 copy tftp://10.1.1.1/capture.pcap
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 65
• Switched Port Analyzer feature permite capturar pacotes na interface de um switch.
• Configuração:
• Utilização:
• Guia para diferentes modelos de switch:
http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c612.shtml#topic5
monitor session 1 source interface fastethernet 0/2
monitor session 1 destination interface fastethernet 0/3
show monitor session 1
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 66
a) Basica, Já tive alguns contatos, porém não entendo muito sobre a ferramenta.
b) Eu tenho conhecimento avançado, porém frequentemente utilizo os serviços do TAC para auxiliar-me nesse processo.
c) Estou em processo de aprendizado.
d) Nenhuma.
Qual é a sua experiência com as ferramentas utilizadas para troubleshooting de SIP?
Cisco Confidential 67 © 2011 Cisco and/or its affiliates. All rights reserved.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 68
• Um usuário relata que toda vez que ele disca para (919) 555-1212, recebe uma mensagem de que a chamada não pode ser concluída da forma discada.
Descrição do Problema
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 69
Utilizando o RTMT Session Trace
• Entre com *5551212 no campo Called Number/URI
• Defina a hora de ínicio e a duração da busca
• A pesquisa encontrou duas chamadas
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 70
• Clique duas vezes para ver o diagrama do fluxo da chamada.
• Mostra claramente que o destino envia a mensagem de Resposta 404 Not Found
Utilizando o RTMT Session Trace
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 71
Troubleshoot da chamada no CUBE
• Habilitar o debug de mensagens SIP – debug ccsip messages Jan 16 04:00:22.679: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bKb5291d44b969a4
From: "Paul Giralt" <sip:[email protected]>;tag=19210128~0d0d25d7-4931-4a07-83c6-b82e2c213ca7-
45568313
To: <sip:[email protected]>
Date: Mon, 16 Jan 2012 03:55:17 GMT
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM8.6
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Call-Info: <sip:172.18.106.59:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
Cisco-Guid: 3852191232-0000065536-0000018595-0996807340
Session-Expires: 1800
P-Asserted-Identity: "Paul Giralt" <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Max-Forwards: 69
Content-Length: 0
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 72
Jan 16 04:00:22.687: //98/E59BC6000000/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bKb5291d44b969a4
From: "Paul Giralt" <sip:[email protected]>;tag=19210128~0d0d25d7-4931-4a07-83c6-
b82e2c213ca7-45568313
To: <sip:[email protected]>;tag=253488-726
Date: Mon, 16 Jan 2012 04:00:22 GMT
Call-ID: [email protected]
CSeq: 101 INVITE
Allow-Events: telephone-event
Server: Cisco-SIPGateway/IOS-15.2.2.T
Reason: Q.850;cause=1
Content-Length: 0
show dialplan number +19195551212
Macro Exp.: +19195551212
No match, result=-1
• Verifique se o número corresponde a um dial peer válido:
Troubleshoot da chamada no CUBE
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 73
• Um usuário relata que toda vez que ele disca para (919) 555-1212, ele recebe um reorder (fast busy) tone.
Descrição do Problema
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 74
• Entre com *5551212 no campo Called Number/URI
• Defina a hora de ínicio e a duração da busca
• A pesquisa encontrou duas chamadas
Utilizando o RTMT Session Trace
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 75
Utilizando o RTMT Session Trace
• O diagrama mostra a sinalização a partir do telefone, e também para o CUBE
• O CUBE está respondendo com uma mensagem de Resposta 403 Forbidden
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 76
• A partir da versão 15.1(2) T, o IOS rejeita chamadas de origens desconhecidas por padrão.
• É possível desativar essa feature ou adicionar à lista de endereços permitidos:
voice service voip
no ip address trusted authenticate
allow-connections sip to sip
sip
voice service voip
ip address trusted list
ipv4 172.18.106.0 255.255.255.0
allow-connections sip to sip
sip
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 77
• Um usuário relata que toda vez que liga para um número de telefone específico, ninguém atende a chamada; mas se ele chama esse mesmo número a partir de seu telefone celular, a chamada é sempre atendida.
• Número chamador é 89919236.
• Número chamado é 1 877 288-8362.
Descrição do Problema
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 78
• Como é possível recriar o problema, pode gerar uma chamada de teste e depois recolher os traces do CallManager.
Coletando os Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 79
• Select File > Open Folder…
Utilizando TranslatorX para análise dos traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 80
• Pesquisar pelo número chamado
Utilizando o TranslatorX para análise dos Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 81
• Desabilite os filtros
• Selecione o INVITE
• Filtre pelo SIP Call ID
Utilizando o TranslatorX para análise dos Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 82
03/29/2010 10:36:41.497 |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to
172.18.159.231:[5060]:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bK1515b3154665
From: "Test User 1" <sip:[email protected]>;tag=97903bc0-a3de-4a15-ba27-44c81fe3adcd-
45510543
To: <sip:[email protected]>
Date: Mon, 29 Mar 2010 14:36:41 GMT
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM8.0
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Call-Info: <sip:172.18.106.59:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
Cisco-Guid: 2081204224-3137452793-0000000466-0996807340
Session-Expires: 1800
P-Asserted-Identity: "Test User 1" <sip:[email protected]>
Contact: <sip:[email protected]:5060>;video;audio
Max-Forwards: 69
Content-Length: 0
Utilizando o TranslatorX para análise dos Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 83
• Onde é que a chamada foi originada? Tente pesquisar pelo número do chamador
Utilizando o TranslatorX para análise dos Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 84
• Selecione o INVITE
• Crie novo filtro
• Filtre pelo Endereço IP
• Habilite os filtros
Utilizando o TranslatorX para análise dos Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 85
Utilizando o TranslatorX para análise dos Traces
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 86
03/29/2010 10:36:33.771 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on
port 51682 index 2321 with 1717 bytes:
INVITE sip:[email protected];user=phone SIP/2.0
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <sip:[email protected]>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <sip:[email protected];user=phone>
Call-ID: [email protected]
Max-Forwards: 70
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 INVITE
User-Agent: Cisco-CP9951/9.0.1
Contact: <sip:[email protected]:51682;transport=tls>
Expires: 180
Accept: application/sdp
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE,INFO
Remote-Party-ID: "Test User 1" <sip:[email protected]>;party=calling;id-
type=subscriber;privacy=off;screen=yes
Supported: replaces,join,sdp-anat,norefersub,extended-refer,X-cisco-callinfo,X-cisco-serviceuri,X-cisco-
escapecodes,X-cisco-service-control,X-cisco-srtp-fallback,X-cisco-monrec,X-cisco-config,X-cisco-sis-5.0.0,X-
cisco-xsi-9.0.1
Allow-Events: kpml,dialog
Content-Length: 632
Content-Type: application/sdp
Content-Disposition: session;handling=optional
INVITE do IP Phone com SDP ao CUCM
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 87
v=0
o=Cisco-SIPUA 26964 0 IN IP4 172.18.159.152
s=SIP Call
t=0 0
m=audio 29254 RTP/SAVP 0 8 18 102 9 116 124 101
c=IN IP4 172.18.159.152
a=crypto:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:102 L16/16000
a=rtpmap:9 G722/8000
a=rtpmap:116 iLBC/8000
a=fmtp:116 mode=20
a=rtpmap:124 ISAC/16000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
m=video 25466 RTP/AVP 97
c=IN IP4 172.18.159.152
b=TIAS:1000000
a=rtpmap:97 H264/90000
a=fmtp:97 profile-level-id=42801E
a=recvonly
INVITE do IP Phone com SDP ao CUCM (continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 88
03/29/2010 10:36:33.773 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on
port 51682 index 2321
SIP/2.0 100 Trying
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <sip:[email protected]>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <sip:[email protected];user=phone>
Date: Mon, 29 Mar 2010 14:36:33 GMT
Call-ID: [email protected]
CSeq: 101 INVITE
Allow-Events: presence
Content-Length: 0
Unified CM envia 100 Trying
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 89
03/29/2010 10:36:33.780 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port
51682 index 2321
REFER sip:[email protected]:51682 SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151511c5f04bf
From: <sip:[email protected]>;tag=2144536187
To: <sip:[email protected]>
Call-ID: [email protected]
CSeq: 101 REFER
Max-Forwards: 70
Contact: <sip:[email protected]:5061;transport=tls>
User-Agent: Cisco-CUCM8.0
Expires: 0
Refer-To: cid:[email protected]
Content-Id: <[email protected]>
Require: norefersub
Content-Type: application/x-cisco-remotecc-request+xml
Referred-By: <sip:[email protected]>
Content-Length: 409
Unified CM envia REFER para tocar Outside Dialtone
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 90
<x-cisco-remotecc-request>
<playtonereq>
<dialogid>
<callid>[email protected]</callid>
<localtag>97903bc0-a3de-4a15-ba27-44c81fe3adcd-45510542</localtag>
<remotetag>00260bd9669e07147bcb3aac-3cda8f0c</remotetag>
</dialogid>
<tonetype>DtOutsideDialTone</tonetype>
<direction>user</direction>
</playtonereq>
</x-cisco-remotecc-request>
Unified CM envia REFER para tocar Outside Dialtone (continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 91
03/29/2010 10:36:33.781 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port
51682 index 2321
SUBSCRIBE sip:[email protected]:51682 SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK1515232b4e84f
From: <sip:[email protected]>;tag=1976165806
To: <sip:[email protected]>
Call-ID: [email protected]
CSeq: 101 SUBSCRIBE
Date: Mon, 29 Mar 2010 14:36:33 GMT
User-Agent: Cisco-CUCM8.0
Event: kpml; [email protected]; from-
tag=00260bd9669e07147bcb3aac-3cda8f0c
Expires: 7200
Contact: <sip:[email protected]:5061;transport=tls>
Accept: application/kpml-response+xml
Max-Forwards: 70
Content-Type: application/kpml-request+xml
Content-Length: 424
<?xml version="1.0" encoding="UTF-8" ?>
<kpml-request xmlns="urn:ietf:params:xml:ns:kpml-request" xmlns:xsi="http://www.w3.org/2001/XMLSchema-
instance" xsi:schemaLocation="urn:ietf:params:xml:ns:kpml-request kpml-request.xsd" version="1.0">
<pattern criticaldigittimer="1000" extradigittimer="500" interdigittimer="10000" persist="persist">
<regex tag="Backspace OK">[x#*+]|bs</regex>
</pattern>
</kpml-request>
Unified CM envia um SUBSCRIBE for KPML
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 92
03/29/2010 10:36:33.802 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port 51682
index 2321 with 453 bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151511c5f04bf
From: <sip:[email protected]>;tag=2144536187
To: <sip:[email protected]>;tag=00260bd9669e07167c743311-343ee3af
Call-ID: [email protected]
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 REFER
Server: Cisco-CP9951/9.0.1
Contact: <sip:[email protected]:51682;transport=TLS>
Content-Length: 0
Phone envia 200 OK para REFER e SUBSCRIBE
03/29/2010 10:36:33.843 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port 51682
index 2321 with 465 bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK1515232b4e84f
From: <sip:[email protected]>;tag=1976165806
To: <sip:[email protected]>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: [email protected]
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 SUBSCRIBE
Server: Cisco-CP9951/9.0.1
Contact: <sip:[email protected]:51682;transport=TLS>
Expires: 7200
Content-Length: 0
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 93
IP Phone (172.18.159.152)
Unified CM (172.18.106.59)
SIP Gateway (172.18.159.231)
INVITE
100 Trying
REFER
SUBSCRIBE
200 OK (REFER)
200 OK (SUBSCRIBE)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 94
03/29/2010 10:36:34.350 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on
port 51682 index 2321 with 896 bytes:
NOTIFY sip:[email protected]:5061 SIP/2.0
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1cd529ba
To: <sip:[email protected]>;tag=1976165806
From: <sip:[email protected]>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: [email protected]
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 1001 NOTIFY
Event: kpml
Subscription-State: active; expires=7200
Max-Forwards: 70
Contact: <sip:[email protected]:51682;transport=TLS>
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE
Content-Length: 209
Content-Type: application/kpml-response+xml
Content-Disposition: session;handling=required
<?xml version="1.0" encoding="UTF-8"?>
<kpml-response xmlns="urn:ietf:params:xml:ns:kpml-response" version="1.0" code="200" text="OK"
suppressed="false" forced_flush="false" digits="1" tag="Backspace OK"/>
Usuário disca o ‘1’
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 95
03/29/2010 10:36:34.352 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on
port 51682 index 2321
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1cd529ba
From: <sip:[email protected]>;tag=00260bd9669e07177ee0d51d-14f56f89
To: <sip:[email protected]>;tag=1976165806
Date: Mon, 29 Mar 2010 14:36:34 GMT
Call-ID: [email protected]
CSeq: 1001 NOTIFY
Content-Length: 0
Unified CM responde NOTIFY With a 200 OK
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 96
03/29/2010 10:36:34.353 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on
port 51682 index 2321
REFER sip:[email protected]:51682 SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151536ea86ab0
From: <sip:[email protected]>;tag=1574166193
To: <sip:[email protected]>
Call-ID: [email protected]
CSeq: 101 REFER
Max-Forwards: 70
Contact: <sip:[email protected]:5061;transport=tls>
User-Agent: Cisco-CUCM8.0
Expires: 0
Refer-To: cid:[email protected]
Content-Id: <[email protected]>
Require: norefersub
Content-Type: application/x-cisco-remotecc-request+xml
Referred-By: <sip:[email protected]>
Content-Length: 401
Unified CM envia REFER para parar Outside Dialtone
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 97
<x-cisco-remotecc-request>
<playtonereq>
<dialogid>
<callid>[email protected]</callid>
<localtag>97903bc0-a3de-4a15-ba27-44c81fe3adcd-45510542</localtag>
<remotetag>00260bd9669e07147bcb3aac-3cda8f0c</remotetag>
</dialogid>
<tonetype>Dt_NoTone</tonetype>
<direction>user</direction>
</playtonereq>
</x-cisco-remotecc-request>
Unified CM envia REFER para parar Outside Dialtone (Continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 98
03/29/2010 10:36:34.402 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on
port 51682 index 2321 with 453 bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151536ea86ab0
From: <sip:[email protected]>;tag=1574166193
To: <sip:[email protected]>;tag=00260bd9669e07184b08b96b-796ab86f
Call-ID: [email protected]
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 REFER
Server: Cisco-CP9951/9.0.1
Contact: <sip:[email protected]:51682;transport=TLS>
Content-Length: 0
Telefone responde com 200 OK para REFER
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 99
IP Phone (172.18.159.152)
Unified CM (172.18.106.59)
SIP Gateway (172.18.159.231)
INVITE
100 Trying
REFER
SUBSCRIBE
200 OK (REFER)
200 OK (SUBSCRIBE)
NOTIFY
200 OK (NOTIFY)
REFER
200 OK (REFER)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 100
03/29/2010 10:36:34.944 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from
172.18.159.152 on port 51682 index 2321 with 896 bytes:
NOTIFY sip:[email protected]:5061 SIP/2.0
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK647d03c1
To: <sip:[email protected]>;tag=1976165806
From: <sip:[email protected]>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: [email protected]
Date: Mon, 29 Mar 2010 14:36:34 GMT
CSeq: 1002 NOTIFY
Event: kpml
Subscription-State: active; expires=7195
Max-Forwards: 70
Contact: <sip:[email protected]:51682;transport=TLS>
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE
Content-Length: 209
Content-Type: application/kpml-response+xml
Content-Disposition: session;handling=required
<?xml version="1.0" encoding="UTF-8"?>
<kpml-response xmlns="urn:ietf:params:xml:ns:kpml-response" version="1.0" code="200"
text="OK" suppressed="false" forced_flush="false" digits="8" tag="Backspace OK"/>
Usário disca o ‘8’
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 101
03/29/2010 10:36:34.352 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to
172.18.159.152 on port 51682 index 2321
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1cd529ba
From: <sip:[email protected]>;tag=00260bd9669e07177ee0d51d-14f56f89
To: <sip:[email protected]>;tag=1976165806
Date: Mon, 29 Mar 2010 14:36:34 GMT
Call-ID: [email protected]
CSeq: 1001 NOTIFY
Content-Length: 0
Unified CM responde NOTIFY With a 200 OK
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 102
Usuário disca o restantes dos dígitos
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 103
IP Phone (172.18.159.152)
Unified CM (172.18.106.59)
SIP Gateway (172.18.159.231)
INVITE
100 Trying
REFER
SUBSCRIBE
200 OK (REFER)
200 OK (SUBSCRIBE)
NOTIFY
200 OK (NOTIFY)
REFER
200 OK (REFER)
NOTIFY
200 OK (NOTIFY)
NOTIFY / 200 OK
Repeats 10 Times
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 104
10:36:41.486 |Digit analysis: match(pi="2", fqcn="+19194769236", cn="89919236",plv="5",
pss="1stLine:RTP_AbbrDial:Cisco:US Local:US RTP Local:US Long Distance:US
International:VMPilotPartition", TodFilteredPss="1stLine:RTP_AbbrDial:Cisco:US Local:US RTP Local:US Long
Distance:US International:VMPilotPartition", dd="918772888362",dac="1”)
10:36:41.486 |Digit analysis: analysis results
10:36:41.486 ||PretransformCallingPartyNumber=+19194769236
|CallingPartyNumber=+19194769236
|DialingPartition=GDP_GlobalE164_PSTN
|DialingPattern=\+1.[2-9]XX[2-9]XXXXXX
|FullyQualifiedCalledPartyNumber=+18772888362
|DialingPatternRegularExpression=(+1)([2-9][0-9][0-9][2-9][0-9][0-9][0-9][0-9][0-9][0-9])
|DialingWhere=
|PatternType=Enterprise
|PotentialMatches=NoPotentialMatchesExist
|DialingSdlProcessId=(0,0,0)
|PretransformDigitString=+18772888362
|PretransformTagsList=ACCESS-CODE:SUBSCRIBER
|PretransformPositionalMatchList=+1:8772888362
|CollectedDigits=+18772888362
|UnconsumedDigits=
|TagsList=ACCESS-CODE:SUBSCRIBER
|PositionalMatchList=+1:8772888362
|VoiceMailbox=
|VoiceMailCallingSearchSpace=1stLine:RTP_AbbrDial
Digit Analysis
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 105
|VoiceMailPilotNumber=89944444
|RouteBlockFlag=RouteThisPattern
|RouteBlockCause=0
|AlertingName=
|UnicodeDisplayName=
|DisplayNameLocale=1
|OverlapSendingFlagEnabled=0
|WithTags=
|WithValues=
|CallingPartyNumberPi=NotSelected
|ConnectedPartyNumberPi=NotSelected
|CallingPartyNamePi=NotSelected
|ConnectedPartyNamePi=NotSelected
|CallManagerDeviceType=NoDeviceType
|PatternPrecedenceLevel=Routine
|CallableEndPointName=[23146446-6606-7227-3882-75d07dd6fdef]
|PatternNodeId=[9badd465-d20a-5bc7-1077-8edee47e8caf]
|AARNeighborhood=[]
|AARDestinationMask=[]
|AARKeepCallHistory=true
|AARVoiceMailEnabled=false
|NetworkLocation=OffNet
Digit Analysis (Continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 106
|Calling Party Number Type=Cisco Unified CallManager
|Calling Party Numbering Plan=Cisco Unified CallManager
|Called Party Number Type=Cisco Unified CallManager
|Called Party Numbering Plan=Cisco Unified CallManager
|ProvideOutsideDialtone=false
|AllowDeviceOverride=false
|AlternateMatches=
{
|Partition=US Long Distance
{
<
|Pattern=9.1[2-9]XX[2-9]XXXXXX
|PatternType=Translation
|TranslationPartition=[a6bd708e-ac4d-ae55-3134-b90b987e5ad9]
|CallManagerDeviceType=NoDeviceType
|PatternPrecedenceLevel=PlDefault
|PatternRouteClass=RouteClassDefault
|RouteNextHopByCgpn=false
>
}
}
Digit Analysis (Continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 107
|TranslationPatternDetails=
|PretransformCallingPartyNumber=89919236
|CallingPartyNumber=+19194769236
|DialingPartition=US Local
|DialingPattern=9.1877[2-9]XXXXXX
|FullyQualifiedCalledPartyNumber=918772888362
|DialingPatternRegularExpression=(9)(1877[2-9][0-9][0-9][0-9][0-9][0-9][0-9])
|DialingWhere=
|PatternType=Translation
|PotentialMatches=NoPotentialMatchesExist
|DialingSdlProcessId=(0,0,0)
|PretransformDigitString=918772888362
|PretransformTagsList=ACCESS-CODE:SUBSCRIBER
|PretransformPositionalMatchList=9:18772888362
|CollectedDigits=+18772888362
|UnconsumedDigits=
|TagsList=SUBSCRIBER
|PositionalMatchList=18772888362
|VoiceMailbox=
|VoiceMailCallingSearchSpace=
|VoiceMailPilotNumber=
|RouteBlockFlag=RouteThisPattern
|RouteBlockCause=1
|AlertingName=
Digit Analysis (Continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 108
|UnicodeDisplayName=
|DisplayNameLocale=1
|OverlapSendingFlagEnabled=0
|WithTags=
|WithValues=
|CallingPartyNumberPi=NotSelected
|ConnectedPartyNumberPi=NotSelected
|CallingPartyNamePi=NotSelected
|ConnectedPartyNamePi=NotSelected
|CallManagerDeviceType=NoDeviceType
|PatternPrecedenceLevel=Routine
|CallableEndPointName=[bb6f140a-5fd4-179a-2cad-2a1d5eacca7e]
|PatternNodeId=[bb6f140a-5fd4-179a-2cad-2a1d5eacca7e]
|AARNeighborhood=[]
|AARDestinationMask=[]
|AARKeepCallHistory=true
|AARVoiceMailEnabled=false
|NetworkLocation=OnNet
|Calling Party Number Type=Cisco Unified CallManager
|Calling Party Numbering Plan=Cisco Unified CallManager
|Called Party Number Type=Cisco Unified CallManager
|Called Party Numbering Plan=Cisco Unified CallManager
|ProvideOutsideDialtone=true
|AllowDeviceOverride=false
|AlternateMatches=
Digit Analysis (Continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 109
03/29/2010 10:36:41.497 |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 172.18.159.231:[5060]:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bK1515b3154665
From: "Test User 1" <sip:[email protected]>;tag=97903bc0-a3de-4a15-ba27-44c81fe3adcd-
45510543
To: <sip:[email protected]>
Date: Mon, 29 Mar 2010 14:36:41 GMT
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM8.0
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Call-Info: <sip:172.18.106.59:5060>;method="NOTIFY;Event=telephone-event;Duration=500"
Cisco-Guid: 2081204224-3137452793-0000000466-0996807340
Session-Expires: 1800
P-Asserted-Identity: "Test User 1" <sip:[email protected]>
Contact: <sip:[email protected]:5060>;video;audio
Max-Forwards: 69
Content-Length: 0
CUCM envia INVITE para o PSTN Gateway
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 110
IP Phone (172.18.159.152)
SIP Gateway (172.18.159.231)
INVITE
100 Trying
REFER
SUBSCRIBE
200 OK (REFER)
200 OK (SUBSCRIBE)
NOTIFY
200 OK (NOTIFY)
REFER
200 OK (REFER)
NOTIFY
200 OK (NOTIFY)
NOTIFY / 200 OK
Repeats 10 Times
SUBSCRIBE
INVITE 200 OK (SUBSCRIBE)
Unified CM (172.18.106.59)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 111
03/29/2010 10:36:42.324 |//SIP/SIPUdp/wait_UdpDataInd: Incoming SIP UDP message size 1568 from
172.18.159.231:[5060]:
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 172.18.106.59:5060;branch=z9hG4bK1515b3154665
From: "Test User 1" <sip:[email protected]>;tag=97903bc0-a3de-4a15-ba27-44c81fe3adcd-
45510543
To: <sip:[email protected]>;tag=DE1EFF8-0
Date: Mon, 29 Mar 2010 14:37:23 GMT
Call-ID: [email protected]
CSeq: 101 INVITE
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO,
REGISTER
Allow-Events: telephone-event
Remote-Party-ID: <sip:[email protected]>;party=called;screen=no;privacy=off
Contact: <sip:[email protected]:5060>
Supported: sdp-anat
Server: Cisco-SIPGateway/IOS-12.x
Content-Type: multipart/mixed;boundary=uniqueBoundary
Mime-Version: 1.0
Content-Length: 788
--uniqueBoundary
Gateway responde com 183 Session Progress com SDP
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 112
Content-Type: application/sdp
Content-Disposition: session;handling=required
v=0
o=CiscoSystemsSIP-GW-UserAgent 0 7954 IN IP4 172.18.159.231
s=SIP Call
c=IN IP4 172.18.159.231
t=0 0
m=audio 27980 RTP/AVP 0 8 116 18 100 101
c=IN IP4 172.18.159.231
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:116 iLBC/8000
a=fmtp:116 mode=20
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:100 X-NSE/8000
a=fmtp:100 192-194
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
--uniqueBoundary
Content-Type: application/x-q931
Content-Disposition: signal;handling=optional
Content-Length: 11
Gateway responde 183 Session Progress com SDP (Continuação)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 113
03/29/2010 10:36:42.330 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on
port 51682 index 2321
SIP/2.0 180 Ringing
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <sip:[email protected]>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <sip:[email protected];user=phone>;tag=97903bc0-a3de-4a15-ba27-44c81fe3adcd-45510542
Date: Mon, 29 Mar 2010 14:36:33 GMT
Call-ID: [email protected]
CSeq: 101 INVITE
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
Allow-Events: presence
Contact: <sip:[email protected]:5061;transport=tls>
Call-Info: <urn:x-cisco-remotecc:callinfo>; security= NotAuthenticated; orientation= to; ui-state= ringout; gci= 2-
305505; call-instance= 1
Send-Info: conference
Remote-Party-ID: <sip:[email protected]>;party=called;screen=no;privacy=off
Content-Length: 0
Unified CM envia 180 Ringing ao IP Phone
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 114
IP Phone (172.18.159.152)
SIP Gateway (172.18.159.231)
INVITE
100 Trying
REFER
SUBSCRIBE
200 OK (REFER)
200 OK (SUBSCRIBE)
NOTIFY
200 OK (NOTIFY)
REFER
200 OK (REFER)
NOTIFY
200 OK (NOTIFY)
NOTIFY / 200 OK
Repeats 10 Times
SUBSCRIBE
INVITE
100 Trying
200 OK (SUBSCRIBE)
180 Ringing
183 Session Progress
Unified CM (172.18.106.59)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 115
• Timestamps salta de 10:36:42 para 10:37:32
• Sem sinalização SIP por 50 segundos
Telefone continua tocando
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 116
03/29/2010 10:37:32.934 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on
port 51682 index 2321 with 422 bytes:
CANCEL sip:[email protected];user=phone SIP/2.0
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <sip:[email protected]>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <sip:[email protected];user=phone>
Call-ID: [email protected]
Max-Forwards: 70
Date: Mon, 29 Mar 2010 14:37:32 GMT
CSeq: 101 CANCEL
User-Agent: Cisco-CP9951/9.0.1
Content-Length: 0
Telefone envia uma CANCEL
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 117
03/29/2010 10:37:32.935 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on
port 51682 index 2321
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <sip:[email protected]>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <sip:[email protected];user=phone>
Date: Mon, 29 Mar 2010 14:37:32 GMT
Call-ID: [email protected]
CSeq: 101 CANCEL
Content-Length: 0
Unified CM envia um 200 OK pelo CANCEL
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 118
IP Phone (172.18.159.152)
SIP Gateway (172.18.159.231)
NOTIFY
200 OK (NOTIFY)
CANCEL
200 OK (CANCEL)
CANCEL
200 OK (CANCEL)
487 Request Cancelled
487 Request Cancelled
ACK
ACK
Unified CM (172.18.106.59)
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 119
• O que fazer para que o gateway abra canal de voz após a mensagem 183 Session Progress?
• RFC 3262: Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
• Fornece uma forma de reconhecer a mensagem 183 Session Progress – PRACK
• Parâmetro “SEP Rel1XX Options” * no CUCM:
Disabled
Send PRACK for all 1xx Messages
Send PRACK if 1xx Contains SDP
*Service Parameter in 7.x and earlier. SIP Profile parameter in 8.x and later
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 120
a) Debug voice ccapi inout
b) Debug ccsip messages
c) Debug voip vtsp default
d) Debug voip vtsp session
Qual dos comandos abaixo, habilita o debug de mensagens SIP?
Cisco Confidential 121 © 2011 Cisco and/or its affiliates. All rights reserved.
Use o painel de perguntas e respostas (Q&A) para perguntar ao especialista agora. Ele começará a responder.
Cisco Confidential 122 © 2011 Cisco and/or its affiliates. All rights reserved.
O Especialista responderá às questões verbalmente. Use o painel escrito Q&A para continuar fazendo suas perguntas.
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 123
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Se tiver perguntas adicionais, poderá perguntar ao especialista Ele estará respondendo do dia 06 de Dezembro ao dia 17 de Dezembro. https://supportforums.cisco.com/thread/2186372 Você poderá assistir ao video ou ler as perguntas e respostas 5 dias úteis após o evento em https://supportforums.cisco.com/community/portuguese/canto-dos-especialistas/webcasts
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Com o Especialista Cisco : Paulo Aguiar
Tire dúvidas sobre soluções da Cisco em Melhores práticas para migração do ASA (Adaptive Security Appliance) para Release 8.3/8.4
Este evento estará aberto até o dia 07 de Dezembro
Acesse
https://supportforums.cisco.com/thread/2184443
Tema: Melhores práticas para migração do ASA
(Adaptive Security Appliance) para Release 8.3/8.4
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 126
em Inglês
Terça-feira, 18 de Dezembro, às
11:30 a.m. IST (India UTC +5:30 horas) 4 a.m. Brasilia 6 p.m. Lisboa
Junte-se à especialista Cisco
Maithri B
Durante esse evento ao vivo você irá aprender os fundamentos de multicast wireless e porque necessitamos disto.
Registre-se para esse evento ao vivo em
http://tools.cisco.com/gems/cust/customerSite.do?METHOD=E&LANGUAGE_ID=E&PRIORITY_CODE=4&SEMINAR_CODE=S17388
Tema: Multicast on Cisco Wireless LAN Controllers
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 127
Em Inglês
Terça-feira, 15 de Janeiro, às
9:00 a.m. Pacific Time
3:00 p.m. Brasil
5:00 p.m. Lisboa
Junte-se ao especialista Cisco
Ashutosh Luktuke
Durante esse evento ao vivo você irá aprender sobre
Cisco GETVPN
Você pode registrar-se a partir de 10 de Dezembro em
https://supportforums.cisco.com
Tema: Cisco GETVPN
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 128
Ocorrendo atualmente
Tema: Scaling Data Center Networks with Cisco FabricPath Junte-se aos especialistas Cisco: Iqbal Syed and Hatim Badr Aprenda e pergunte aos especialistas questões relacionadas ao Cisco FabricPath sobre as arquiteturas STP ou VPC, Opções de design com o FabricPath, Migração de redes STP/VPC para redes FabricPath e a melhores práticas de implementação e design Fabric Path. Tema: Best Practices for Configuring the Cisco Web Security Appliance (WSA) Junte-se ao especialista Cisco: Juan Ramos Aprenda como configurar, solucionar problemas, e otimizar a Web Security Appliance (WSA) da Cisco. A Web Security Appliance facilmente extende a segurança web para incluir Anti-Virus, Reputação web (web reputation), e blacklists para revelar ameaças de seguranças ocultas na internet.
Junte-se ao tópico de discussão de um ou ambos eventos Pergunte ao Especialista pelo link:
https://supportforums.cisco.com/community/netpro/expert-corner#view=ask-the-experts
© 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 129
Em Breve
Tema: Data Center and Cloud Security
Junte-se ao especialista Cisco: Naman Latif
Aprenda e pergunte sobre Data Center e Cloud Security
Tema: Cisco Unified Border Element (CUBE) Junte-se ao especialista Cisco: Robin Cai Aprenda e pergunte sobre como configurar e solucionar problemas no Cisco Unified Border Element.
Eventos começam Segunda-Feira, 10 de Dezembro
Junte-se ao tópico de discussão desses eventos, através do link abaixo:
https://supportforums.cisco.com/community/netpro/expert-corner#view=ask-the-experts
Cisco Confidential © 2011 Cisco and/or its affiliates. All rights reserved. 130
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