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[MX/PTX] Syslog message - "Cmerror : kd_par1 detected_facetbuffer0 error"

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Article ID: KB37328 KB Last Updated: 06 Sep 2021Version: 1.0
Summary:

This article explains the meaning of the syslog message "Cmerror : kd_par1 detected_facetbuffer0 error" that is seen on MX and PTX Series routers. Since the error is a transient parity error, it usually clears on its own.

Symptoms:

The following log message may be seen followed by a major alarm on the chassis.

Jul 10 22:50:08  router-name : %PFE-3: fpc0 Cmerror Op Set: PE Chip: pe3[3]: FLT: kd_par1 detected_facetbuffer0 error  
root@router-name> show chassis alarms no-forwarding

1 alarms currently active
Alarm time               Class  Description
2021-07-10 22:50:08 UTC  Major  FPC 0 Major Errors
Cause:

These are parity errors in the internal SRAM memory of the Flexible PIC Concentrator (FPC). The errors are considered to be transient in nature and should clear automatically.

Solution:

Usually these errors should clear on their own. No RMA would be required too.

Perform a reboot of the FPC during a maintenance window, if the errors do not clear automatically. Contact Support with the following show command outputs if the issue is seen even after FPC reboot. Capture the output to a file.

  • show log messages
  • show log chassisd
  • start shell network pfe <fpc#>
  • show nvram
  • show syslog messages
  • exit
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