re0> show chassis alarms 1 alarms currently active Alarm time Class Description 2024-02-29 05:21:25 PST Minor FPC 0 SIB Link Error
FPC X SIB Link Error alarm will be triggered
Get the RSI, var/log and these commands:
show chassis fabric errors fpc <slot>FPC slot number (0..7) ----> for all FPCs please show chassis fabric errors sib <sib-slot> SIB slot number (0..5) ----> for all SIBs please show chassis fabric fpcs show chassis fabric plane-location show chassis fabric reachability detail show chassis fabric sibs show chassis fabric summary show chassis fabric topology show chassis environment sib show chassis sibs detail show chassis sibs errors
Find out which FPC is having issues with which plane, for example:
Feb 29 05:21:24.668 re0 fpc0 cmqfx: Link errors detected for PFE 4 SIB 0 Plane 1 Feb 29 05:21:25.130 re0 fpc0 Cmerror Op Set: PE Chip: PE4[4]: EPW: crc error (URI: /fpc/0/pfe/0/cm/0/PE_Chip/4/PECHIP_CMERROR_EPW_MISC_INT_EVENTS_CRC_ERR) Feb 29 05:21:26.190 re0 fpc0 Cmerror Op Set: PE Chip: PE4[4]: EPW: crc error (URI: /fpc/0/pfe/0/cm/0/PE_Chip/4/PECHIP_CMERROR_EPW_MISC_INT_EVENTS_CRC_ERR) Feb 29 05:22:47.261 re0 fpc0 Cmerror Op Clear: PE Chip: PE4[4]: EPW: clear crc error (URI: /fpc/0/pfe/0/cm/0/PE_Chip/4/PECHIP_CMERROR_EPW_MISC_INT_EVENTS_CRC_ERR) Feb 29 05:22:47.273 re0 fpc0 Cmerror Op Clear: PE Chip: PE4[4]: EPW: clear crc error (URI: /fpc/0/pfe/0/cm/0/PE_Chip/4/PECHIP_CMERROR_EPW_MISC_INT_EVENTS_CRC_ERR) Feb 29 05:21:25.090 re0 chassisd[22469]: CHASSISD_FM_ERROR: fm_qfx10_ev_fpc_state_handler: Packet Forwarding Engine got link errors (SIB#0, Packet Forwarding Engine 4 on FPC 0) Feb 29 05:21:25.092 re0 alarmd[22780]: Alarm set: FPC id=369098856, color=YELLOW, class=CHASSIS, reason=FPC 0 SIB Link Error
Fabric management FPC state:
FPC #0 PFE #4 SIB0_FASIC1 (plane 1) Plane Disabled, Links Error
The above is showing issues with FPC towards plane 1, and plane 1 is part of SIB0
For PTX5000, reseat the issued FPC could resolve the issue.
To clear the alarm:
Offline the affected FPC Offline the affected plane
Wait a few minutes
Online the affected plane Online the affected FPC request chassis fpc slot X offline request chassis fabric plane X offline/ request chassis sib slot 5 offline
Wait a couple of minutes
request chassis fabric plane X online/request chassis sib slot 5 online
Wait until the plane is back online
request chassis fpc slot X online
If the model is PTX10K16, please perform the following workaround:
>request chassis fpc slot 0 offline >request chassis sib slot 2 offline ---Wait a couple of minutes--- >request chassis sib slot 2 online ---Wait until the sib is back online--- >request chassis fpc slot 0 online
The alarm should be cleared after that, and then monitoring should be done for a few days.
If the alarm comes back, you can try inserting the FPC into a different slot to see if the issue follows the FPC or the slot.
Either the SIB, FPC or chassis might have hardware issues and should be replaced.
Start a case with JTAC support if the issue persists.
2024-11-27 : Added PTX5000 in the solution section. Added PTX5000 under Categories.
2024-06-24: Added the SIB restart command (usable for PTX10008) in the solution section.2024-03-05 : Article Created
2025-11-19-Font modification