Juniper M Series Monitoring And Troubleshooting Manual page 581

Display HCM Alarms
Purpose
Action
Sample output
Meaning
Sample Output
Copyright © 2012, Juniper Networks, Inc.
If a router with a single HCM fails, no alarm can be sent. If a master HCM fails on a router
with dual HCMs and the backup HCM takes over mastership, an alarm is reported on the
backup Routing Engine.
When HCM mastership changes because of failure, Routing Engine mastership changes
as well.
To view HCM alarms, use the following command:
user@host> show chassis alarms
user@host>show chassis alarms
4 alarms currently active
Alarm time Class
2005-02-16 22:10:27 UTC
The command output displays a minor alarm indicating that the backup Routing Engine
is active or is master. Since the HCM is a companion component of the Routing Engine,
the backup HCM is also active. The command output displays the date and time of the
alarm.
To verify that the backup HCM has taken over mastership, use the show chassis
routing-engine command.
user@host>show chassis routing-engine
user@host>show chassis routing-engine
Routing Engine status:
Slot 0:
Current state
Election priority
Temperature
DRAM
Memory utilization
CPU utilization:
User
Background
Kernel
Interrupt
Idle
Model
Serial ID
Start time
Uptime
Routing Engine status:
Slot 1:
Current state
Election priority
Temperature
CPU temperature
DRAM
Description
Minor Backup RE Active
Backup
Master (default)
33 degrees C / 91 degrees F
2048 MB
37 percent
0 percent
0 percent
6 percent
0 percent
100 percent
RE-3.0
P10865703096
2005-02-16 22:13:19 UTC
2 hours, 13 minutes, 57 seconds
Master
Backup (default)
33 degrees C / 91 degrees F
29 degrees C / 84 degrees F
2048 MB
Chapter 25: Monitoring the HCM
537