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Maintaining the T1600 Control Boards

 

Purpose

For optimum router performance, verify the condition of the control boards.

Action

On a regular basis:

  • Check the host subsystem LEDs on the craft interface. For more information about the LEDs and the display, see T1600 Craft Interface Description.

    During normal operations:

    • The green host subsystem OK LED on the craft interface is lit.

    • The red host subsystem OK LED on the craft interface is not lit.

  • Check the LEDs on the control board faceplate.

    During normal operations:

    • The green OK LED on the control board faceplate is lit.

    • The yellow FAIL LED on the control board faceplate is not lit.

  • Issue the show chassis environment cb command to check the status of the T-CBs. The output is similar to the following:

    user@host> show chassis environment cb

For further description of the output from the commands, see show chassis environment cb.