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    Check the MCS Status

    To check the MCS status:

    1. Check the MCS Environmental Status
    2. Check the MCS Status from the Craft Interface
    3. Check the MCS LEDs

    Check the MCS Environmental Status

    Purpose

    To obtain information about the MCS environmental status.

    Action

    To check the MCS environmental status, use the following command:

    user@host> show chassis environment mcs

    Sample Output

    user@host> show chassis environment mcs
    MCS 0 status:
      State                           Online Master
      Temperature                  43 degrees C / 109 degrees F
      Power:
        3.3 V                    3318 mV
        5.0 V                    4974 mV
        12.0 V on                 12
      FPGA Revision                13
    MCS 1 status:
      State                           Online Standby
      Temperature                  58 degrees C / 136 degrees F
      Power:
        3.3 V                    3317 mV
        5.0 V                    5006 mV
        12.0 V                  11843 mV
        5.0 V bias               4998 mV
        8.0 V bias               8195 mV
      BUS Revision                 12
      FPGA Revision               255
    

    Meaning

    The show chassis environment mcs command is available on the M40e and M160 routers only. The command output displays environmental information about both MCSs installed in the router or about an individual MCS. The MCS status can be Present, Online, Offline, or Empty. The command also indicates that the MCS is the master MCS. The command output also displays the temperature of the air flowing past the MCS, information about MCS power supplies, field-programmable gate array (FPGA) revision information, and the revision level of the chassis management bus (CMB) backup.

    To display the environmental status of a particular MCS, use the following Junos OS CLI operational mode command:

    user@host> show chassis environment mcs slot

    Check the MCS Status from the Craft Interface

    Purpose

    To check the MCS LED status from the craft interface.

    Action

    To display the MCS LED status from the craft interface, use the following command:

    user@host> show chassis craft-interface

    Sample Output

    user@host> show chassis craft-interface
    [...Output truncated...] 
    MCS and SFM LEDs:
    MCS    0   1      SFM    0   1   2   3
    --------------------------------------
    Amber      .             .   .
    Green      .             .   .
    Blue       *             *   *
    

    Meaning

    If the amber FAIL LED is on, check for current MCS alarms.

    Look at the Host Module LEDs on the craft interface. The LEDs indicate the MCS status. (See Figure 1.)

    Figure 1: M40e and M160 Router Craft Interface Host Module LEDs

    M40e and M160
Router Craft Interface Host Module LEDs

    Three host module LEDs—one green MASTER, one green ONLINE, and one red OFFLINE—located on the upper right of the craft interface indicate the status of each host module. The LEDs marked HOST0 show the status of the Routing Engine in slot RE0 and the MCS in slot MCS0. The LEDs marked HOST1 show the status of the Routing Engine in slot RE1 and the MCS in slot MCS1.

    Table 1 describes the functions of the host module LEDs.

    Table 1: Host Module LEDs

    Label

    Shape

    Color

    State

    Description

    MASTER

     

    Green

    On steadily

    Host module (Routing Engine and MCS) is functioning as master.

    ONLINE

     

    Green

    On steadily

    Host module is present and operational.

    Blinking

    Host module is starting up.

    OFFLINE

     

    Red

    On steadily

    Host module is not present, or is present
    but not operational.

    Check the MCS LEDs

    Purpose

    To check the MCS status from the LEDs on the MCS faceplate.

    Action

    To check the MCS status, look at the LEDs on the MCS faceplate.

    Table 2describes the functions of these LEDs.

    Table 2: MCS LEDs

    Color

    Label

    State

    Description

    Blue

    MASTER

    On steadily

    MCS is master.

    Green

    OK

    On steadily

    MCS is operating normally.

    Blinking

    MCS is starting up.

    Amber

    FAIL

    On steadily

    MCS has failed.

    When the MCS is functioning normally, the green OK LED remains on steadily. If the amber FAIL LED is on, check for MCS alarms.

     

    Related Documentation

     

    Published: 2012-08-20