Hi,
I have senario where 15 branches via bri connection to central ISDN E1 Pri Head office.The setup is working before and suddenly branches not able to dial head office.
Below is the debug q931 logs from branch router and i am getting continous "channel not avalible message on Head office
Branch router logs
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hmc#isdn test call interface bri 0/0/0 44492999
hmc#
007049: Jun 6 14:41:39.497 gmt: ISDN BR0/0/0 **ERROR**: handle_l2d_srq_mail: Layer 1 inactive
007050: Jun 6 14:41:39.721 gmt: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0/0, TEI 78 changed to up
007051: Jun 6 14:41:39.721 gmt: ISDN BR0/0/0 Q931: Sending SETUP callref = 0x002E callID = 0x84BC switch = basic-net3 interface = User
007052: Jun 6 14:41:39.721 gmt: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8 callref = 0x2E
Bearer Capability i = 0x8890
Standard = CCITT
Transfer Capability = Unrestricted Digital
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x81
Preferred, B1
Called Party Number i = 0x80, '44492999'
Plan:Unknown, Type:Unknown
007053: Jun 6 14:41:40.021 gmt: ISDN BR0/0/0 Q931: RX <- SETUP_ACK pd = 8 callref = 0xAE
Channel ID i = 0x89
Exclusive, B1
007054: Jun 6 14:41:40.181 gmt: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8 callref = 0xAE
007055: Jun 6 14:41:40.949 gmt: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8 callref = 0xAE
Cause i = 0x80AC - Requested circuit/channel not available
007056: Jun 6 14:41:40.953 gmt: ISDN BR0/0/0 Q931: TX -> RELEASE pd = 8 callref = 0x2E
Cause i = 0x80AC - Requested circuit/channel not available
007057: Jun 6 14:41:41.133 gmt: ISDN BR0/0/0 Q931: RX <- RELEASE_COMP pd = 8 callref = 0xAE
007058: Jun 6 14:41:43.145 gmt: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0/0/0, TEI 78 changed to down
007059: Jun 6 14:41:43.145 gmt: ISDN BR0/0/0 Q931: Ux_DLRelInd: DL_REL_IND received from L2
007060: Jun 6 14:41:50.289 gmt: ISDN BR0/0/0 Q931: L3_ShutDown: Shutting down ISDN Layer 3
007061: Jun 6 14:41:51.609 gmt: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0/0, TEI 79 changed to up
hmc#
un 6 14:41:18.355 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 11
Jun 6 14:41:18.355 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 11 is not available
RDC-R-WAN-02#
Jun 6 14:41:18.355 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
RDC-R-WAN-02#
Jun 6 14:41:20.283 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 12
Jun 6 14:41:20.283 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 12 is not available
RDC-R-WAN-02#
Jun 6 14:41:20.287 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
RDC-R-WAN-02#
Jun 6 14:41:23.167 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 13
Jun 6 14:41:23.167 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 13 is not available
RDC-R-WAN-02#
Jun 6 14:41:23.171 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jun 6 14:41:24.107 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 14
Jun 6 14:41:24.107 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 14 is not available
RDC-R-WAN-02#
Jun 6 14:41:24.107 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
RDC-R-WAN-02#
Jun 6 14:41:26.355 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 15
Jun 6 14:41:26.355 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 15 is not available
RDC-R-WAN-02#
Jun 6 14:41:26.355 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jun 6 14:41:28.003 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 17
Jun 6 14:41:28.003 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 17 is not available
hmc#isdn test call interface bri 0/0/0 44492999
hmc#
007049: Jun 6 14:41:39.497 gmt: ISDN BR0/0/0 **ERROR**: handle_l2d_srq_mail: Layer 1 inactive
007050: Jun 6 14:41:39.721 gmt: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0/0, TEI 78 changed to up
007051: Jun 6 14:41:39.721 gmt: ISDN BR0/0/0 Q931: Sending SETUP callref = 0x002E callID = 0x84BC switch = basic-net3 interface = User
007052: Jun 6 14:41:39.721 gmt: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8 callref = 0x2E
Bearer Capability i = 0x8890
Standard = CCITT
Transfer Capability = Unrestricted Digital
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x81
Preferred, B1
Called Party Number i = 0x80, '44492999'
Plan:Unknown, Type:Unknown
007053: Jun 6 14:41:40.021 gmt: ISDN BR0/0/0 Q931: RX <- SETUP_ACK pd = 8 callref = 0xAE
Channel ID i = 0x89
Exclusive, B1
007054: Jun 6 14:41:40.181 gmt: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8 callref = 0xAE
007055: Jun 6 14:41:40.949 gmt: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8 callref = 0xAE
Cause i = 0x80AC - Requested circuit/channel not available
007056: Jun 6 14:41:40.953 gmt: ISDN BR0/0/0 Q931: TX -> RELEASE pd = 8 callref = 0x2E
Cause i = 0x80AC - Requested circuit/channel not available
007057: Jun 6 14:41:41.133 gmt: ISDN BR0/0/0 Q931: RX <- RELEASE_COMP pd = 8 callref = 0xAE
007058: Jun 6 14:41:43.145 gmt: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0/0/0, TEI 78 changed to down
007059: Jun 6 14:41:43.145 gmt: ISDN BR0/0/0 Q931: Ux_DLRelInd: DL_REL_IND received from L2
007060: Jun 6 14:41:50.289 gmt: ISDN BR0/0/0 Q931: L3_ShutDown: Shutting down ISDN Layer 3
007061: Jun 6 14:41:51.609 gmt: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0/0, TEI 79 changed to up
hmc#
Head office router logs
**********************************************************************************************
un 6 14:41:18.355 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 11
Jun 6 14:41:18.355 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 11 is not available
RDC-R-WAN-02#
Jun 6 14:41:18.355 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
RDC-R-WAN-02#
Jun 6 14:41:20.283 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 12
Jun 6 14:41:20.283 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 12 is not available
RDC-R-WAN-02#
Jun 6 14:41:20.287 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
RDC-R-WAN-02#
Jun 6 14:41:23.167 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 13
Jun 6 14:41:23.167 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 13 is not available
RDC-R-WAN-02#
Jun 6 14:41:23.171 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jun 6 14:41:24.107 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 14
Jun 6 14:41:24.107 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 14 is not available
RDC-R-WAN-02#
Jun 6 14:41:24.107 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
RDC-R-WAN-02#
Jun 6 14:41:26.355 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 15
Jun 6 14:41:26.355 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 15 is not available
RDC-R-WAN-02#
Jun 6 14:41:26.355 qst: ISDN Se1/0:15 **ERROR**: CCPMSG_InCall: ChannelID IE invalid 44(0x2C) rejecting call
Jun 6 14:41:28.003 qst: ISDN Se1/0:15 **ERROR**: CCPRI_NegotiateBchan: Channel Negotiation Failed for Requested bchan 17
Jun 6 14:41:28.003 qst: %ISDN-6-CHAN_UNAVAILABLE: Interface Se1/0:15 Requested Channel 17 is not available
