Hello,
I've been experiencing issues with dropped calls from one of our clients. All the research I've done thus far has indicated that the issue is with the Telco, but they've said they don't see any issues.
Here is sample output from the debugs.
526471: Apr 13 17:27:04: %MARS_NETCLK-3-CLK_TRANS: Network clock source transitioned from priority 10 to priority 1
526472: Apr 13 17:27:10: %CONTROLLER-5-UPDOWN: Controller T1 0/0/0, changed state to down (LOF detected)
526473: Apr 13 17:27:10.175: ISDN Se0/0/0:23 Q931: L3_ShutDown: Shutting down ISDN Layer 3
526474: Apr 13 17:27:10.179: ISDN Se0/0/0:23 Q931: Ux_DLRelInd: DL_REL_IND received from L2
526475: Apr 13 17:27:10: %MARS_NETCLK-3-HOLDOVER: Entering Holdover for Controller T1 0/0/0
526476: Apr 13 17:27:10.987: %HA_EM-5-LOG: MonitorSerial: Alert Sent
526477: Apr 13 17:27:12: %LINK-3-UPDOWN: Interface Serial0/0/0:23, changed state to down
526478: Apr 13 17:27:20: %MARS_NETCLK-3-HOLDOVER_TRANS: Holdover timer exceeded for Controller T1 0/0/0
526479: Apr 13 17:27:20: %MARS_NETCLK-3-CLK_TRANS: Network clock source transitioned from priority 1 to priority 10
526480: Apr 13 17:27:21.191: %HA_EM-5-LOG: MonitorSerial: Alert Sent
526481: Apr 13 17:27:24: %VOICE_IEC-3-GW: C SCRIPTS: Internal Error (Digit collect failed): IEC=1.1.179.11.28.6 on callID 29854 GUID=B4E42D7AE15A11E4AB3EBD0FFCE4095F
526482: Apr 13 17:27:25: %CONTROLLER-5-UPDOWN: Controller T1 0/0/0, changed state to up
526483: Apr 13 17:27:25.183: ISDN Se0/0/0:23 Q921: L2_EstablishDataLink: sending SABME
526484: Apr 13 17:27:25.183: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
526485: Apr 13 17:27:26.011: ISDN Se0/0/0:23 Q921: User RX <- SABMEp sapi=0 tei=0
526486: Apr 13 17:27:26.011: ISDN Se0/0/0:23 Q921: User TX -> UAf sapi=0 tei=0
526487: Apr 13 17:27:26.067: ISDN Se0/0/0:23 Q921: User RX <- INFO sapi=0 tei=0, ns=0 nr=0
526488: Apr 13 17:27:26.067: ISDN Se0/0/0:23 Q931: RESTART pd = 8 callref = 0x0000
Channel ID i = 0xA98381
Exclusive, Channel 1
Restart Indicator i = 0x80
526650: Apr 13 17:28:23: %CONTROLLER-5-UPDOWN: Controller T1 0/0/0, changed state to down (LOF detected)
526651: Apr 13 17:28:23.175: ISDN Se0/0/0:23 Q931: L3_ShutDown: Shutting down ISDN Layer 3
526652: Apr 13 17:28:23.179: ISDN Se0/0/0:23 Q931: Ux_DLRelInd: DL_REL_IND received from L2
526653: Apr 13 17:28:23: %MARS_NETCLK-3-HOLDOVER: Entering Holdover for Controller T1 0/0/0
526654: Apr 13 17:28:24.019: %HA_EM-5-LOG: MonitorSerial: Alert Sent
526655: Apr 13 17:28:25: %LINK-3-UPDOWN: Interface Serial0/0/0:23, changed state to down
526656: Apr 13 17:28:33: %MARS_NETCLK-3-HOLDOVER_TRANS: Holdover timer exceeded for Controller T1 0/0/0
526657: Apr 13 17:28:33: %MARS_NETCLK-3-CLK_TRANS: Network clock source transitioned from priority 1 to priority 10
526658: Apr 13 17:28:34.279: %HA_EM-5-LOG: MonitorSerial: Alert Sent
526659: Apr 13 17:28:37: %CONTROLLER-5-UPDOWN: Controller T1 0/0/0, changed state to up
526660: Apr 13 17:28:37.183: ISDN Se0/0/0:23 Q921: L2_EstablishDataLink: sending SABME
526661: Apr 13 17:28:37.183: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
526662: Apr 13 17:28:38.127: ISDN Se0/0/0:23 Q921: User RX <- SABMEp sapi=0 tei=0
526663: Apr 13 17:28:38.127: ISDN Se0/0/0:23 Q921: User TX -> UAf sapi=0 tei=0
526664: Apr 13 17:28:38.183: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
526665: Apr 13 17:28:38.191: ISDN Se0/0/0:23 Q921: User RX <- INFO sapi=0 tei=0, ns=0 nr=0
526666: Apr 13 17:28:38.191: ISDN Se0/0/0:23 Q931: RESTART pd = 8 callref = 0x0000
Channel ID i = 0xA98381
Exclusive, Channel 1
Restart Indicator i = 0x80
From the running config
!
controller T1 0/0/0
cablelength long 0db
pri-group timeslots 1-24
!
!
interface Serial0/0/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn supp-service name calling
no cdp enable
!
!
card type t1 0 0
Show Controllers T1
Lodge2921#show controllers t1
T1 0/0/0 is up.
Applique type is Channelized T1
Cablelength is long 0db
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Version info FPGA Rev: 08121917, FPGA Type: PRK1
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (230 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 37 Path Code Violations,
3 Slip Secs, 6892 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
11 Errored Secs, 1 Bursty Err Secs, 7 Severely Err Secs, 7432 Unavail Secs
If anyone has any ideas on additional debugs/ information to speak with the telco about that would be very helpful.
Thank you!
-Josh
