Maintaining the Routing Engines

The router can have a Routing Engine in each of the slots labeled RE0 and RE1 at the rear of the chassis, as shown in Figure 2. To maintain the Routing Engines, perform the following procedures on a regular basis:

• Check the Routing Engine LEDs on the Routing Engine panel or on the craft interface. The green LED labeled ONLINE and blue LED labeled MASTER light steadily for the master Routing Engine when it is functioning normally. (The ONLINE LED also lights for the standby Routing Engine if it is installed). For more information about the LEDs, see Routing Engine Panel and Fan Tray.
• Issue the CLI show chassis routing-engine command to check the status of the Routing Engines. As shown in the sample output, the master Routing Engine is marked as Master in the Current state field:
  user@host> show chassis routing-engine

  Routing Engine status:
    Slot 0:
      Current state            Master
      Election priority        Master (default)
      Temperature           37 degrees C / 98 degrees F
      DRAM                 768 MB
      Memory utilization    18 percent
      CPU utilization:
        User                 0 percent
        Background           0 percent
        Kernel               2 percent
        Interrupt            0 percent
        Idle                98 percent
      Model                    RE-2.0
      Serial ID                8b00000792898b01
      Start time               2003-04-29 16:09:49 PDT
      Uptime                   16 days, 3 hours, 6 minutes, 34 seconds
      Load averages:           1 minute   5 minute  15 minute
                                   0.00       0.00       0.00
  Routing Engine status:
    Slot 1:
      Current state            Backup
      Election priority        Backup (default)
      Temperature           36 degrees C / 96 degrees F
      DRAM                 768 MB
      Memory utilization    16 percent
      CPU utilization:
        User                 0 percent
        Background           0 percent
        Kernel               0 percent
        Interrupt            0 percent
        Idle               100 percent
      Model                    RE-2.0
      Serial ID                6d000007c8150801
      Start time               2003-04-22 10:01:29 PDT
      Uptime                   16 days, 3 hours, 6 minutes, 34 seconds
  
  
  

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