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    Checklist for Monitoring Redundant MCSs

    Purpose

    You monitor and maintain redundant Miscellaneous Control Subsystems (MCSs) installed in the M40e or M160 router to ensure that there is no interruption of functions such as the following:

    • Router component monitoring and control for failure and alarm conditions
    • Component power-up and power-down control
    • Redundant Routing Engine, MCS, and PFE Clock Generator (PCG) mastership control
    • Flexible PIC Concentrator (FPC) error detection and reset control
    • SONET clock source generation and monitoring
    • SONET reference clock (from the FPC and BIT interfaces) monitoring
    • System clocks (from the PCG) monitoring

    For more information about monitoring a single MCS, see Checklist for Monitoring the MCS.

    Table 1 provides a checklist of tasks you perform to monitor redundant MCSs.

    Action

    Table 1: Checklist for Monitoring Redundant MCSs

    Monitor Redundant MCS Tasks

    Command or Action

    Display Redundant MCS Hardware Information

    show chassis hardware

    Monitoring Redundant MCS Status
    1. Check the Redundant MCS Environmental Status

    show chassis environment mcs

    1. Check the Redundant MCS Status from the Craft Interface

    show chassis craft-interface

    1. Check the Redundant MCS LED Status

    Check the LEDs on the MCS faceplate.

    Display Redundant MCS Mastership
    1. Check the MCS Environmental Status

    show chassis environment mcs

    1. Check the MCS Status from the Craft Interface

    show chassis craft-interface

    1. Check the MCS LEDs

    Check the LEDs on the MCS faceplate.

    Switch MCS Mastership

    Manually take the MCS offline by pressing the offline button on the component faceplate.

    Perform a Swap Test on a Redundant MCS
    1. Take the host module offline.
    2. Take the MCS offline.
    3. Remove the MCS and replace it with one that you know works.
    Return an MCS

    See Return the Failed Component, or follow the procedure in the M40e or M160 router hardware guide.

     

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    Published: 2012-08-20