Maintaining M320 FPCs

Purpose

For optimum router performance, verify the condition of the FPCs. The router can have up to eight FPCs mounted vertically in the FPC card cage at the front of the chassis.

Action

On a regular basis:

• Check the LED display on the craft interface and the LEDs on the craft interface directly above each FPC slot. The green LED labeled OK lights steadily when an FPC is functioning normally.
• Issue the CLI 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  Online            37      2          0       256         9         41
    1  Empty           
    2  Online            37      3          0       256         8         41
    3  Empty           
    4  Empty           
    5  Empty           
    6  Empty           
    7  Empty           
  

  For more detailed output, add the detail option. The following example also specifies a slot number (0), which is optional:

  user@host> show chassis fpc detail 0

  Slot 0 information:
    State                               Online    
    Temperature                      37 degrees C / 98 degrees F
    Total CPU DRAM                  256 MB
    Total SRAM                       28 MB
    Total SDRAM                     256 MB
    Start time:                         2003-10-01 04:19:30 PDT
    Uptime:                              10 days, 7 hours, 16 minutes, 48 seconds

  For further description of the output from the commands, see the Junos OS System Basics and Services Command Reference.