Description

PECHIP_CMERROR_FI_MEM_MISC_PROTECT_FSET_REG_DETECTED_GNTPIV2PPFE_MEM0 noticed on FPC where the PFE is getting disabled

Symptoms

root@> show chassis alarms no-forwarding
No alarms currently active

root@> show chassis hardware detail no-forwarding

Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                AB123             JNP10008 [PTX10008]
FPC 1            REV 42   750-051357   ABC123          LC1101 - 30C / 30Q / 96X
  CPU                     BUILTIN      BUILTIN           FPC CPU
 
root@> show chassis fpc detail
Slot 1 information:
  State                               Online
  Total CPU DRAM                 8192 MB
  FIPS Capable                        False
  Temperature                      48 degrees C / 118 degrees F
  Start time                          2024-08-3 12:47:05 PDT
  Uptime                              21 days, 10 hours, 10 minutes, 24 seconds
  Max power consumption           1020 Watts
  
Aug 3 16:28:32.764   fpc1 cmerror_level_decrement: for /fpc/1/pfe/0/cm/0/PE_Chip/1/PECHIP_CMERROR_FI_MEM_MISC_PROTECT_FSET_REG_DETECTED_GNTPIV2PPFE_MEM0 (0x210745), scope: pfe, category: io, severity: fatal, module: PE Chip, type: Description for PECHIP_CMERROR_FI_MEM_MISC_PROTECT_FSET_REG_DETECTED_GNTPIV2PPFE_MEM0 
Aug 3 16:28:32.781   fpc1 Performing action log for error /fpc/1/pfe/0/cm/0/PE_Chip/1/PECHIP_CMERROR_FI_MEM_MISC_PROTECT_FSET_REG_DETECTED_GNTPIV2PPFE_MEM0 (0x210745) in module: PE Chip with scope: pfe category: io level: fatal, oc_category: default 
Aug 3 16:28:32.793   fpc1 Cmerror Op Clear: PE Chip::FATAL ERROR!! from PE1[1]: FI: Clear GntPipe V2PPFE table mem0 MEM:vpfe2ppfe_mapping, MEMTYPE:5, ADDR :[he7905d0,he7905d0], LOG_ADDR :[93,93], WIDTH :[32],  (URI: /fpc/1/pfe/0/cm/0/PE_Chip/1/PECHIP_CMERROR_FI_MEM_MISC_PROTECT_FSET_REG_DETECTED_GNTPIV2PPFE_MEM0) 
Aug 3 16:28:47.956   chassisd[32312]: CHASSISD_SNMP_TRAP7: SNMP trap generated: FRU insertion (jnxFruContentsIndex 7, jnxFruL1Index 1, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName FPC @ 0/*/*, jnxFruType 3, jnxFruSlot 0)
Aug 3 16:28:58.131   chassisd[32312]: CHASSISD_SNMP_TRAP10: SNMP trap generated: FRU power on (jnxFruContentsIndex 7, jnxFruL1Index 1, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName FPC: LC1101 - 30C / 30Q / 96X @ 0/*/*, jnxFruType 3, jnxFruSlot 0, jnxFruOfflineReason 2, jnxFruLastPowerOff 108136132, jnxFruLastPowerOn 108146643)
Aug 3 16:29:12.314   inetd[32328]: Number of tftp connections at max limit (1)

 

Solution

This error generally indicates a mirror error on the PECHIP of FPC1 in a PTX router. Such memory issues on the FPC are often due to transient hardware problems.

Solution

1. Offline and Online the FPC:
   - During the maintenance window, offline and online the FPC using the following commands:
     
     set chassis fpc <slot number> offline | online
     
   - Verify the status of alarms and check the log messages with:
     
     show chassis alarm
     show log messages | match PECHIP
     
2. Physical Reseating:
   - If the PECHIP error continues to appear in the log messages, physically reseat the FPC.

Modification History

2024-09-04 : Article Created