MQSS errors on FPCs are causing wedge and interfaces to remain in down state.

user@router_re0> show version
Hostname: router_re0
Model: mx10008
Junos: 22.4R3-S2.11

FPC 3            REV 40   750-114437   BXXXXXX5          JNP10K-LC9600

user@router-fpc3:pfe> show host-path app wedge-detect state
Wedge-Detection states:

General Information:
        RPC ready?    : Yes
        SYS ready?    : Yes (h/w ready : Yes, ISSU : No)
        Stopped?      : No
        Threshold     : 3
        Interval(ms)  : 1000
        init. wait(s) : 120
        False +ve     : rx

...

PFE Inst : 3      FP Interface  : fp3
        State           : Suspect-wedge
        Transmit count  : 683156
        Received count  : 645970
        Missed count    : 1
        Wedge reporting : Registered
        Epoch drop      : 0
        Verify Errors   : 8337
        Uptime          : 7 days 21 hours 47 mins 55 secs
        Error path      : -- n/a --

*** messages ***
Dec 18 15:02:05.982 user@router_re0-fpc3 ytchip-luss[10646]: ppe_error_interrupt(8315): YT[1].slice[1]_PPE 80 Errors thread timeout error
Dec 18 15:02:06.356 user@router_re0-fpc3 ytchip-luss[10646]: dispatch_event_handler(1102): YT[1].slice[1].disp[0] PRIMARY_TIMEOUT (PPE 0 Zone 9).
Dec 18 15:02:06.567 user@router_re0 fpc3 MQSS(3): WI-0: OGE 0 interface FIFO overflow
Dec 18 15:02:06.487 user@router_re0-fpc3 ytchip-luss[10646]: ppe_error_interrupt(8315): YT[1].slice[1]_PPE 100 Errors thread timeout error
Dec 18 15:02:07.383 user@router_re0 fpc3 MQSS(3): WI-0: OGE 0 interface FIFO overflow
Dec 18 15:02:07.356 user@router_re0-fpc3 ytchip-luss[10646]: dispatch_event_handler(1102): YT[1].slice[1].disp[1] PRIMARY_TIMEOUT (PPE 0 Zone 12).
Dec 18 15:02:09.496 user@router_re0 fpc3 MQSS(3): WI-0: OGE 0 interface FIFO overflow
Dec 18 15:02:11.383 user@router_re0 fpc3 MQSS(3): WI-0: OGE 0 interface FIFO overflow
Dec 18 15:02:12.482 user@router_re0-fpc3 packetio[10661]: [Error] Wedge-Detect : Packet verification error: interface-id: 9 instance: 3 prio: 7 missed packet: 645970 645976 packet: Packet inIf:fp3 outIf:cp0 type:Command net:Input Pkt Len: 72 pos: 0 00 00 00 09 00 09 db 58 09 09 09 09 00 00 01 80  c2 00 00 02 20 ed 47 99 7f 18 88 09 01 01 01 14 00 7f 20 ed 47 99 7f 0a 00 54 00 7f 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09
Dec 18 15:02:12.483 user@router_re0-fpc3 packetio[10661]: [Error] Wedge-Detect : Packet verification error: interface-id: 9 instance: 3 prio: 7 pattern mismatch seq: 645976 packet: Packet inIf:fp3 outIf:cp0 type:Command net:Input Pkt Len: 72 pos: 0 00 00 00 09 00 09 db 58 09 09 09 09 00 00 01 80 c2 00 00 02 20 ed 47 99 7f 18 88 09 01 01 01 14 00 7f 20 ed 47 99 7f 0a 00 54 00 7f 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09
Dec 18 15:02:13.383 user@router_re0 fpc3 MQSS(3): WI-0: OGE 0 interface FIFO overflow
Dec 18 15:02:14.482 user@router_re0-fpc3 packetio[10661]: [Error] Wedge-Detect : Packet verification error: interface-id: 9 instance: 3 prio: 7 missed packet: 645977 645978 packet: Packet inIf:fp3 outIf:cp0 type:Command net:Input Pkt Len: 72 pos: 0 00 00 00 09 00 09 db 5a 09 09 09 09 00 00 01 80 c2 00 00 02 20 ed 47 99 7f 18 88 09 01 01 01 14 00 7f 20 ed 47 99 7f 0a 00 54 00 7f 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09
Dec 18 15:02:14.483 user@router_re0-fpc3 packetio[10661]: [Error] Wedge-Detect : Packet verification error: interface-id: 9 instance: 3 prio: 7 pattern mismatch seq: 645978 packet: Packet inIf:fp3 outIf:cp0 type:Command net:Input Pkt Len: 72 pos: 0 00 00 00 09 00 09 db 5a 09 09 09 09 00 00 01 80 c2 00 00 02 20 ed 47 99 7f 18 88 09 01 01 01 14 00 7f 20 ed 47 99 7f 0a 00 54 00 7f 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09 09

Restart FPCs in a Service Affecting MW

2025-01-06 : Article Created

2026-05-29 : Minor formatted