This article describes how to clear the "Backup RE Active" chassis alarm on EX9200 Series switches.
The following alarm is reported on EX9200:
root@EX9200> show chassis alarms
1 alarms currently active
Alarm time Class Description
2018-09-04 10:20:24 PDT Minor Backup RE Active
root@EX9200> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Backup
Election priority Master (default)
<output snipped>
Routing Engine status:
Slot 1:
Current state Master
Election priority Backup (default)
The master Routing Engine may fail and switch over to the backup Routing Engine (RE) due to file system corruption in the RE, which results in the above alarm. The alarm may also be reported when there is internal hardware error, hard disk failure, or hardware failure or when the master RE is removed or reset and the backup RE takes over.
To clear the alarm, perform the following procedure:
[edit]
root@EX9200# set chassis redundancy routing-engine 1 master
[edit]
root@EX9200# set chassis redundancy routing-engine 0 backup
[edit]
root@EX9200# show system commit
[edit]
root@EX9200# show chassis
redundancy {
routing-engine 0 backup;
routing-engine 1 master;
}
[edit]
root@EX9200# set chassis redundancy graceful-switchover
[edit]
root@EX9200# set system commit synchronize
[edit]
root@EX9200# commit synchronize
configuration check succeeds
re0:
commit complete
re1:
commit complete
Wait for one or two minutes and run the following commands to verify the Routing Engine state.
{MASTER} [edit]
root@EX9200> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Backup
Election priority Backup
Temperature 33 degrees C / 91 degrees F
CPU temperature 31 degrees C / 87 degrees F
DRAM 16330 MB (16384 MB installed)
Memory utilization 10 percent
5 sec CPU utilization:
User 1 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 99 percent
Model RE-S-EX9200-1800X4
Serial ID 9009155788
Start time 2018-08-09 18:20:02 PDT
Uptime 25 days, 16 hours, 3 minutes, 2 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.17 0.13 0.15
Routing Engine status:
Slot 1:
Current state Master
Election priority Master
Temperature 34 degrees C / 93 degrees F
CPU temperature 29 degrees C / 84 degrees F
DRAM 16330 MB (16384 MB installed)
Memory utilization 7 percent
<output snipped>
15 min CPU utilization:
User 0 percent
Background 0 percent
Kernel 1 percent
Interrupt 0 percent
Idle 99 percent
Model RE-S-EX9200-1800X4
Serial ID 9009140140
Start time 2018-08-09 17:58:26 PDT
Uptime 25 days, 16 hours, 24 minutes, 51 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.31 0.21 0.12
{MASTER}[edit]
root@EX9200> show chassis alarms
No alarms currently active