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Maintaining the MX2010 Routing Engines

date_range 09-Mar-21

Purpose

Each host subsystem comprises a Control Board and Routing Engine (CB-RE) functioning together.

To maintain the host subsystem, check the LEDs (RE0 and RE1) on the craft interface. For more information about the LEDs and the display, see MX2010 Craft Interface Description .

Note:

Even though the Routing Engine is combined with a Control Board (CB-RE), separate LEDs on the craft interface show the status of the Routing Engines, and separate LEDs show the status of the Control Boards.

For optimum router performance, verify the condition of the Routing Engines and 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 MX2010 Craft Interface Description . During normal operations:

    Note:

    Even though the Routing Engine is combined with a Control Board (CB-RE), separate LEDs on the craft interface show the status of the Routing Engines, and separate LEDs show the status of the Control Boards.

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

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

  • Check the LEDs on the Routing Engine portion of the CB-RE faceplate. During normal operations, the ONLINE LED is lit steadily green.

  • Issue the show chassis routing-engine command to check the status of the Routing Engines. The output is similar to the following:

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user@host> show chassis routing-engine

Routing Engine status:
  Slot 0:
    Current state                  Master
    Election priority              Master (default)
    Temperature                 39 degrees C / 102 degrees F
    CPU temperature             35 degrees C / 95 degrees F
    DRAM                      16351 MB (16384 MB installed)
    Memory utilization           7 percent
    CPU utilization:
      User                       0 percent
      Background                 0 percent
      Kernel                     2 percent
      Interrupt                  1 percent
      Idle                      97 percent
    Model                          RE-S-1800x4
    Serial ID                      9009094145
    Start time                     2013-02-16 18:06:28 PST
    Uptime                         2 days, 20 hours, 54 minutes, 15 seconds
    Last reboot reason             Router rebooted after a normal shutdown.
    Load averages:                 1 minute   5 minute  15 minute
                                       0.10       0.03       0.01
Routing Engine status:
  Slot 1:
    Current state                  Backup
    Election priority              Backup (default)
    Temperature                 38 degrees C / 100 degrees F
    CPU temperature             34 degrees C / 93 degrees F
    DRAM                      16351 MB (16384 MB installed)
    Memory utilization           7 percent
    CPU utilization:
      User                       0 percent
      Background                 0 percent
      Kernel                     0 percent
      Interrupt                  0 percent
      Idle                      99 percent
    Model                          RE-S-1800x4
    Serial ID                      9009094136
    Start time                     2013-02-16 18:06:36 PST
    Uptime                         2 days, 20 hours, 54 minutes, 5 seconds
    Last reboot reason             Router rebooted after a normal shutdown.
    Load averages:                 1 minute   5 minute  15 minute
                                       0.00       0.00       0.00

For further description of the command output, see the Junos OS System Basics and Services Command Reference.

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