Troubleshooting FPCs

As soon as an FPC is seated in an operating router, the Routing Engine downloads the FPC software to it. The FPC then runs diagnostics and enables the PICs housed on it. During this time, the green LED labeled OK above the FPC on the craft interface blinks. When the FPC is online and functioning normally, the OK LED lights steadily.

To troubleshoot the FPCs, follow these guidelines:

• If the red LED labeled FAIL above the FPC on the craft interface lights steadily, check the LCD on the craft interface for a message about the status of the FPC and the PICs housed in it.
• Make sure the FPC is properly seated in the midplane—use a Phillips screwdriver to check that the screws at the top and bottom of the card carrier are tight.
• To check the status of an FPC, issue the following CLI command:
  user@host> show chassis fpc

                  Temp  CPU Utilization (%)   Memory    Utilization (%)
  Slot State      (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
    0  Online      37      4          0        32         1         39
    1  Online      39      4          0        32         1         39
    2  Empty
    3  Online      34      1          0        32         1         40
    4  Empty           
    5  Online      35      4          0        32         2         40
    6  Online      36      4          0        32         1         39
    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              32 MB
    Total SRAM                   4 MB
    Total SDRAM                256 MB
    I/O Manager ASIC information   Version 2.0, Foundry IBM, Part number 0
    I/O Manager ASIC information   Version 2.0, Foundry IBM, Part number 0
    I/O Manager ASIC information   Version 2.0, Foundry IBM, Part number 0
    I/O Manager ASIC information   Version 2.0, Foundry IBM, Part number 0
    Start time:                    2003-04-29 16:11:55 PDT
    Uptime:                        5 days, 21 hours, 32 minutes, 41 seconds
  
   

  For further description of the output from the commands, see the JUNOS Internet Software Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management.