Match em dial peer

[Christopher Duarte]

Olá a todos,

Tenho uma conexão ISDN E1 e os seguintes dial peers configurados no gateway:

dial-peer voice 1 pots

translation-profile incoming DID-STRIP

direct-inward-dial

port 0/0/0:15

!

dial-peer voice 201 voip

destination-pattern 9.......

session protocol sipv2

session target ipv4:10.0.0.127

session transport udp

voice-class codec 1

dtmf-relay rtp-nte

ip qos dscp cs3 signaling

no vad

No entanto, as chamadas vindas da PSTN através do link E1 falham:

Oct  9 14:43:38 UTC: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8  callref = 0x0DF4

        Bearer Capability i = 0x8090A2

                Standard = CCITT

                Transfer Capability = Speech 

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA98397

                Exclusive, Channel 15

        Facility i = 0x9F8B0100A10F02010B06072A8648CE1500040A0100

                Protocol Profile =  Networking Extensions

                0xA10F02010B06072A8648CE1500040A0100

                Component = Invoke component

                        Invoke Id = 11

                        Operation = InformationFollowing (calling_name)

                                Name information in subsequent FACILITY message

        Calling Party Number i = 0x2183, '1128038030'

                Plan:ISDN, Type:National

        Called Party Number i = 0xA1, '2129381100'

                Plan:ISDN, Type:National

Oct  9 14:43:38 UTC: ISDN Se0/0/0:15 Q931: Received SETUP  callref = 0x8DF4 callID = 0x114A switch = primary-ni interface = User

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:

   Calling Number=1128038030, Called Number=2129381100, Voice-Interface=0x49504F40,

   Timeout=TRUE, Peer Encap Type=ENCAP_VOICE, Peer Search Type=PEER_TYPE_VOICE,

   Peer Info Type=DIALPEER_INFO_SPEECH

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:

   Result=NO_MATCH(-1) After All Match Rules Attempt

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpMatchSafModulePlugin:

   dialstring=NULL, saf_enabled=0, saf_dndb_lookup=0, dp_result=-1

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:

   Calling Number=1128038030, Called Number=2129381100, Voice-Interface=0x0,

   Timeout=TRUE, Peer Encap Type=ENCAP_VOICE, Peer Search Type=PEER_TYPE_VOICE,

   Peer Info Type=DIALPEER_INFO_FAX

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:

   Result=NO_MATCH(-1) After All Match Rules Attempt

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpMatchSafModulePlugin:

   dialstring=NULL, saf_enabled=0, saf_dndb_lookup=0, dp_result=-1

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:

   Calling Number=1128038030, Called Number=2129381100, Voice-Interface=0x0,

   Timeout=TRUE, Peer Encap Type=ENCAP_VOICE, Peer Search Type=PEER_TYPE_VOICE,

   Peer Info Type=DIALPEER_INFO_SPEECH

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpAssociateIncomingPeerCore:

   Result=NO_MATCH(-1) After All Match Rules Attempt

Oct  9 14:43:38 UTC: //-1/xxxxxxxxxxxx/DPM/dpMatchSafModulePlugin:

   dialstring=NULL, saf_enabled=0, saf_dndb_lookup=0, dp_result=-1

Oct  9 14:43:38 UTC: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x8DF4

        Cause i = 0x809C - Invalid number format (incomplete number)

Alguma ideia do que pode estar causando a falha?

Agradeço desde já.

[Andre Castro · Accepted solution]

Ola Christopher,

Parece que o a chamada entrante não encontra nenhum dial-peer como candidato para combinar com o número discado.

Se vc deseja que a chamada entre pela interface E1, no dial-peer 1 sugiro configurar um dos critérios utilizados pelo gateway para recebê-la, por exemplo:

dial-peer voice 1

  incoming called-number .

Do contrário, o dial-peer permanecerá desativado.

Aplique algum dos critérios como no exemplo e verifique se funciona.

Um abraço,

[Leonardo Santana · Accepted solution]

Ola Christopher,

Em adição as dicas do André, de uma olhada neste documento para um melhor entendimento de como um dial-peer de entrada é selecionado.

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a008010fed1.shtml

Att

Leonardo Santana

[Christopher Duarte]

Muito obrigado pessoal pelos esclarecimentos.

No entanto ainda fica confuso para mim, pois o documento também afirma:

Voice-port (associated with the incoming call setup request) with configured dial peer port (applicable for inbound POTS call legs)
If no match is found in the step 3, the router or gateway attempts to match the configured dial peer port to the voice-port associated with the incoming call. If multiple dial peers have the same port configured, the dial peer first added in the configuration is matched.

O que me levaria a acreditar que o match seria dado mesmo na porta configurada (port 0/0/0:15) neste caso de dial peer pots.

De toda maneira obrigado, funcionou com as dicas dadas.

Abraços

[Andre Castro]

Tem certa razão Christopher.

Complementando o documento que o Leonardo forneceu (+5), segue:

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a008010fed1.shtml#topic11

Destination-pattern is configured and a voice-port or session target is also configured.

Você pode até verificar o estado de operação do dial peer antes e depois de configurar algum dos 3 critérios indicados no documento, com o comando 'show dial-peer voice summary'.

Um abraço