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    Display the SFM Summary Status

    Purpose

    To isolate problems in the SFM by checking the SFM summary status.

    Action

    To display the SFM summary status, use the following command:

    user@host> show chassis sfm

    Sample Output

    user@host> show chassis sfm
    Temp  CPU Utilization (%)   Memory    Utilization (%)
    Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
      0  Online            41      2          0        64        16         46
      1  Offline             --- Hard FPC error ---
      2  Online            43      2          0        64        16         46
      3  Online            44      2          0       128         7         46
    

    Meaning

    The command output displays the SFM slot number: 0, 1, 2, or 3. The output also displays the operating status of each SFM as Online, Offline, or Empty.

    In the sample output, the root cause of the SFM1 failure may be an FPC problem.

    The command output displays the temperature of air passing by the SFM, in degrees Centigrade. It displays the SFM CPU usage, including the total percentage used by the SFM processor and the percentage used for interrupts.

    The command output also displays the percentage of memory usage, including the total DRAM available to the SFM processor, in megabytes (MB), and the percentage of heap space (dynamic memory) being used by the SFM processor. Heap utilization greater than 80 percent can indicate a software problem (memory leak). The output shows the percentage of buffer space being used by the SFM processor for buffering internal messages.

    If the SFM summary command output indicates that there is a problem, you can display more detailed SFM status information with the following command:

    user@host> show chassis sfm detail

    The command output displays the following information:

    Sample output

    user@host> show chassis sfm detail
    SFM status:
    Slot 0 information:
      State                          Online    
      SPP Temperature             36 degrees C / 96 degrees F
      SPR Temperature             45 degrees C / 113 degrees F
      Total CPU DRAM              64 Mbytes
      Total SRAM                   4 Mbytes
      Internet Processor I           Version 1, Foundry IBM, Part number 3
      Start time:                    2001-12-03 05:08:45 PST
      Uptime:                        6 hours, 41 minutes, 17 seconds
    Slot 1 information:
      [...Output truncated...]
    Slot 2 information:
      [...Output truncated...]
    Slot 3 information:
      [...Output truncated...]
    Packet scheduling mode: Disabled
    

    In addition to the command output displayed for the show chassis sfm command, the show chassis sfm detail command displays the temperature of air passing by the Switch Plane Processor (SPP) card and the Switch Plane Router (SPR) card (the two SFM serial components) in degrees Centigrade. The command output displays the total CPU DRAM and SRAM being used by the SFM processor. It also displays the time when the SFM became active and how long the SFM has been up and running. A small uptime means that the SFM came online a short time ago and could indicate a possible SFM error condition.

    To display the status of a particular SFM, use the following command:

    user@host> show chassis sfm sfm-slot

    To display detailed status information about a particular SFM, use the following command:

    user@host> show chassis sfm detail sfm-slot
     

    Related Documentation

     

    Published: 2012-08-20