Troubleshooting M120 FPCs and CFPCs
Problem Description: The FPCs or CFPCs are not functioning normally.
Solution As soon as an FPC (or CFPC) is seated in an operating router, the Routing Engine
downloads the FPC software to it under two conditions: the FPC is present when the
Routing Engine boots the Junos OS, and the FPC is installed and requested online through
the CLI or push button on the front panel. The FPC then runs diagnostics and enables
the PICs housed on it. During this time, the green LED labeled STATUS above the FPC on
the craft interface blinks. When the FPC is online and functioning normally, the STATUS
LED lights steadily.
To troubleshoot the FPCs:
• Make sure the FPC is properly seated in the midplane. Check that each ejector handle
has been turned clockwise and is tight.
• Issue the show chassis fpc command to check the status of installed FPCs. As shown
in the sample output, the value Online in the column labeled State indicates that the
FPC is functioning normally:
user@host> show chassis fpc
Temp CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt DRAM (MB) Heap Buffer
0 Empty
1 Empty
2 Online 39 1 0 128 1 59
3 Online 41 0 0 128 1 59
4 Online 43 0 0 128 1 58
5 Online 39 0 0 128 3 59
For more detailed output, add the detail option. The following example also specifies
a slot number (2), which is optional:
user@host> show chassis fpc detail 2
State Online
Temperature 39 degrees C / 102 degrees F
Total CPU DRAM 128 MB
Start time 2006-05-02 08:53:29 PDT
Uptime 1 hour, 51 minutes, 57 seconds
For further description of the output from the commands, see the CLI Explorer.
Related
Documentation
M120 Flexible PIC Concentrators (FPCs) Description on page 51•
• M120 Compact FPCs (CFPCs) Description on page 54
• Maintaining M120 FPCs and CFPCs on page 270
• Replacing an M120 FPC on page 213
• Replacing an M120 CFPC on page 219
287Copyright © 2018, Juniper Networks, Inc.
Chapter 32: Troubleshooting Components
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