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    Check the SSB LEDs

    Purpose

    Periodically check the SSB LEDs to verify that the SSB is online or offline and the type of task it is performing.

    Action

    To check the SSB LEDs, look on the faceplate at the front of the router (see Figure 1).

    Figure 1: SSB LEDs

    SSB LEDs

    The SSB has two groups of LEDs: online/offline LEDs and status LEDs. The online/offline LEDs indicate whether the SSB is online or offline. The status LEDs indicate what type of task the SSB is performing. Table 1 describes the LED states.

    Table 1: SSB LEDs

    Label

    Color

    State

    Description

    OFFLINE

    Amber

    On steadily

    SSB is offline.

    ONLINE

    Green

    On steadily

    SSB processor is running.

    MASTER

    Blue

    On steadily

    SSB is master.

    STATUS (left)

    Green

    Blinking

    SSB processor is running. Normally, the blinking is faint and becomes bright only when the SSB is processing many exceptions.

    STATUS (right)

    Green

    Flashing

    I/O interrupts are occurring.

     
     

    Published: 2012-08-20