Description

A minor alarm on the SIB of the FPC shown with no impact to the customer.


root@user> show chassis alarms

1 alarms currently active

Alarm time Class Description

2024-12-21 01:49:14 UTC Minor FPC 5 SIB Link Error,

Symptoms

root@user> show chassis fabric fpcs no-forwarding

Fabric management FPC state:

PFE #5

SIB5_Fcore1 (plane 11) Plane Disabled, Links Error

 

Dec 21 01:49:13 Router : %PFE-3: fpc5 BEGIN Tx serdes info for asic PFE5_RX_SIB2_SIB5 serdes 8 

Dec 21 01:49:13 Router : %PFE-3: fpc5 END Tx serdes info for asic PFE5_RX_SIB2_SIB5 serdes 8

%DAEMON-3-CHASSISD_FM_ERROR: fm_sng_ev_fpc_state_handler: Packet Forwarding Engine got link errors (SIB#5, Packet Forwarding Engine 5 on FPC 5)

Solution

The above log indicates a hardware error related to plane 11 of PFE 5 which is connected to SIB 5 of the FPC. We recommend you to reseat the affected FPC to resolve the issue. If the issue persists after this step, we can try inserting the FPC into a different slot to see if the issue follows the FPC or the slot and determine further steps.

Modification History

2025-02-03 : Article Created

2025-07-31 : Removed PII info from the logs.