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Display Redundant Routing Engine Mastership and Backup

Purpose

To determine redundant Routing Engine mastership and backup.

Action

To display which Routing Engine is master and backup, use the following CLI command:

user@host> show chassis routing-engine

Sample Output

user@host> show chassis routing-engine

Routing Engine status 
 Slot 0  
  Current state: Master 
  Election priority: Master 
 Temperature          41 C / 105 degrees F
  DRAM               765 Mbytes
  CPU utilization 
    User              0 percent
    Background          0 percent
    Kernel             0 percent
    Interrupt          0 percent
    Idle            100 percent
  Serial ID            39000004f8bdec01
  Start time            2000-01-04 22:02:58 UTC
  Uptime               14 hours, 45 minutes, 40 seconds
  Load averages           1 minute   5 minute  15 minute
                                     0.05    0.04    0.01
 Slot 1 
  Current state  Backup 
  Election priority  Backup (default) 
  Temperature          41 C / 105 degrees F
[...Output truncated...]

Meaning

The command output shows the status of the Routing Engines: RE0 is Master and RE1 is Backup.

You can also use the show chassis environment routing-engine command. The Current State field indicates which Routing Engine is master and which is backup.

For M40e and M160 routers, you can also use the show chassis craft-interface command. The command output shows the master and backup Routing Engine LED status.