CSCvc98563 - alarm code CBC_ALRM_CANBUS_A_FAILED and CBC...SLOT_ID_CHANGED raise and clear from both RP0 and RP1 - 1

[RGvanWierst]

Hi All,

a similar problem is experienced with IOS-XR release 7.1.3 on the Fabric Card 0/FC0 on a ASR 9906 router.

RP/0/RSP1/CPU0:ASR9K# sh alarms

--------------------------------------------------------

Active Alarms (Detail) for EDT

--------------------------------------------------------

Description:             Canbus slot id changed at runtime     

Location:                0/FC0

AID:                     SM/HW_ERROR/1   

Tag String:              FAM_FAULT_TAG_CBC_ALRM_SLOT_ID_CHANGED_RUNTIME

Module Name:             N/A

EID:                     CHASSIS/LCC/1:CONTAINER/FC/1

Pending Sync:            false

Severity:                Major

Status:                  Set

Group:                   Controller

Set Time:                04/01/2021 16:08:25 CEST

Clear Time:              -

Service Affecting:       NotServiceAffecting

Transport Direction:     NotSpecified

Transport Source:        NotSpecified

Threshold Value:         -

Bucket Type:             NotSpecified

Current Value:           -

Event Type:              Default

Interface:               N/A      

Alarm Name:              Canbus slot id changed

The error was logged after the active RSP was removed from the chassis and reseated again. From that moment, on both RSPs, the Alarm Major LED is red.

RP/0/RSP1/CPU0:ASR9K# admin sh led

Fri Apr  2 09:54:12.712 CEST

=============================================================

Location  LED Name                      Mode         Color

=============================================================

0/0

          0/0-Status LED                WORKING     GREEN

0/2

          0/2-Status LED                WORKING     GREEN

0/RSP0

          0/RSP0-Fail LED               WORKING     OFF

          0/RSP0-ACO LED                WORKING     OFF

          0/RSP0-Alarm Minor LED        WORKING     OFF

          0/RSP0-Alarm Major LED        WORKING     RED

          0/RSP0-Alarm Critical LED     WORKING     OFF

          0/RSP0-FC Fault LED           WORKING     OFF

0/RSP1

          0/RSP1-Fail LED               WORKING     OFF

          0/RSP1-ACO LED                WORKING     OFF

          0/RSP1-Alarm Minor LED        WORKING     OFF

          0/RSP1-Alarm Major LED        WORKING     RED

          0/RSP1-Alarm Critical LED     WORKING     OFF

          0/RSP1-FC Fault LED           WORKING     OFF

0/FC0

          0/FC0-Status LED              WORKING     GREEN

Does anyone know a solution for having those red LEDs go OFF again?

Thanks in advance for your feedback.

Best Regards,

RG.

[RGvanWierst · Accepted solution]

Hi All,

the problems mentioned and described on 6 April 2021 have been solved. 

Problems were:

1] the red Alarm Major LEDs on both RSPs in the 9906 router 

2] A "Canbus slot id changed at runtime"  Active Alarm for EDT in the alarms list.

Both problems have been solved by removing (disconnecting) the standby RSP from the chassis, waiting a few seconds until all LEDs are off, and next carefully reseating the RSP into the chassis.

After approximately 10 minutes the router had stabilized and all LEDs were OFF.

The mentioned alarm had disappeared from the alarms list.

Best regards,

RG