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ISDN BRI Branch connecting to ISDN E1 at central site

                   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

**********************************************************************************************

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

1 REPLY
VIP Purple

ISDN BRI Branch connecting to ISDN E1 at central site

can you put config from both location?

regards

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