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    Related Documentation


    Checklist for Monitoring the SSB


    You monitor the M20 router System and Switch Board (SSB) to ensure that it provides allocation of incoming data packets throughout shared memory on the Flexible PIC Concentrators (FPCs), transfers outgoing data cells to the FPCs for packet reassembly, performs route lookups using the forwarding table, monitors system components for failure and alarm conditions, and monitors FPC operation and reset. (See Table 1)


    Table 1: Checklist for Monitoring the SSB

    Monitor SSB Tasks

    Command or Action

    Monitor the SSB status 
    1. Display the SSB Environmental Status

    show chassis environment

    1. Display the SSB Environmental Status

    show chassis ssb

    1. Check the SSB LEDs

    Check the LEDs on the SCB faceplate.

    Check for SSB Alarms 
    1. Display SSB Error Messages in the System Log File

    show log messages

    1. Display SSB Error Messages in the Chassis Daemon Log File

    show log chassisd | match ssb

    Verify SSB Failure 
    1. Check the SSB Connection

    Check the thumbscrews on the left and right sides of the SSB.

    1. Perform a Swap Test on the SSB
    1. Take the SSB offline.
    2. Remove the SSB.
    3. Replace the SSB with one that you know works.
    Obtain SSB Hardware Information 
    1. Display the SSB Hardware Information

    show chassis hardware

    1. Locate the SSB Serial Number ID Label

    Look for the SSB serial number label located on the top of the SSB adjacent to the SDRAM memory bank.

    1. Display the SSB Firmware Version

    show chassis firmware

    Replace the SSB

    See Return the Failed Component.


    Related Documentation


    Published: 2012-08-20