This article talks about FPC Minor Error CM_CMERROR_FABRIC_FI (0x2e0001)

An alarm would be seen as below,

lab@Juniper> show chassis alarms

1 alarms currently active

Alarm time Class Description

2024-01-13 21:10:11 UTC Minor FPC 16 Minor Errors

When the FPC encounters an error in the FI i.e Fabric In direction it reports the error as below that can be seen in the log messages:

Jan 13 21:15:12 Juniper: %PFE-5: fpc16 Performing action clear-cmalarm for error /fpc/16/pfe/0/cm/0/CM[1]/1/CM_CMERROR_FABRIC_FI (0x2e0001) in module: CM[1] with scope: board category: functional level: minor

We can log in to the FPC shell to check the same, these are transient in nature and can be cleared with the cli command as shown further in the section. Please note that the isolated or infrequent occurrences can be ignored safely.

SMPC7(jtac-mx960-r2004-re0 vty)# show cmerror module 11 error 0x2e0001

Error-id       : 0x2e0001

Error Name         : CM_CMERROR_FABRIC_FI

Identifier          : /fpc/7/pfe/0/cm/0/CM[1]/1/CM_CMERROR_FABRIC_FI

Description          : MPC fabric FI error

State            : enabled

Scope            : pfe

Category          : functional

PFE             : 1

Configured Level      : Minor

Default Level        : Minor

Count             : 0

Threshold           : 3

Error Limit         : 1

Occur Count        : 0

Clear Count         : 0

OverItemThres Occur Count : 0

OverItemThres Clear Count : 0

Last-occurred(ms ago) : 0

The error being "Minor" in nature, we can clear this using the command below:

clear chassis fpc errors <fpc-slot-id> errors 0x2e0001

If the error persists or re-appears, it is suggested to restart the fpc in a safe window to recover via reinitialisation:

request chassis fpc slot <fpc-slot-id> restart

Note : For SRX, card offline option is not there. Please reboot the chassis to recover from the issue state.

Please open a JTAC case if the error is frequently seen in the log messages and persists even after the above mentioned steps.