Troubleshooting the TX Matrix Plus Routing Engines

Problem

During normal operation, the ONLINE LED on each Routing Engine is lit green, indicating that the Routing Engine is functional.

• The ONLINE LED on the Routing Engine faceplate is lit steadily red.
• An alarm indicates that a host subsystem has been removed or failed.

Solution

1. Check the ONLINE LED on the Routing Engine faceplate. If the ONLINE LED is red, issue the chassis routing-engine sfc 0 command to check the status of the Routing Engine.
   user@host> show chassis routing-engine sfc 0

   sfc0-re0:
   --------------------------------------------------------------------------
   Routing Engine status:
     Slot 0:
       Current state                  Master
       Election priority              Master (default)
       Temperature                 27 degrees C / 80 degrees F
       CPU temperature             42 degrees C / 107 degrees F
       DRAM                      3327 MB
       Memory utilization          12 percent
       CPU utilization:
         User                       0 percent
         Background                 0 percent
         Kernel                     2 percent
         Interrupt                  0 percent
         Idle                      98 percent
       Model                          RE-TXP-SFC
       Serial ID                      737A-1024
       Start time                     2009-05-11 17:39:49 PDT
       Uptime                         3 hours, 45 minutes, 25 seconds
       Last reboot reason             Router rebooted after a normal shutdown.
       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                 29 degrees C / 84 degrees F
       CPU temperature             43 degrees C / 109 degrees F
       DRAM                      3327 MB
       Memory utilization          11 percent
       CPU utilization:
         User                       0 percent
         Background                 0 percent
         Kernel                     0 percent
         Interrupt                  0 percent
         Idle                     100 percent
       Model                          RE-TXP-SFC
       Serial ID                      737A-1024
       Start time                     2009-05-11 17:08:54 PDT
       Uptime                         4 hours, 16 minutes, 52 seconds
       Last reboot reason             0x1:power cycle/failure 
   
   

2. Issue the show chassis alarms command to display Routing Engine alarms.