Juniper M Series User Manual

Display HCM Alarms
Purpose 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.
Action To view HCM alarms, use the following command:
user@host> show chassis alarms
Sample output
user@host>show chassis alarms
4 alarms currently active
Alarm time Class Description
2005-02-16 22:10:27 UTC Minor Backup RE Active
Meaning 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
Sample Output user@host>show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Backup
Election priority Master (default)
Temperature 33 degrees C / 91 degrees F
DRAM 2048 MB
Memory utilization 37 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 6 percent
Interrupt 0 percent
Idle 100 percent
Model RE-3.0
Serial ID P10865703096
Start time 2005-02-16 22:13:19 UTC
Uptime 2 hours, 13 minutes, 57 seconds
Routing Engine status:
Slot 1:
Current state Master
Election priority Backup (default)
Temperature 33 degrees C / 91 degrees F
CPU temperature 29 degrees C / 84 degrees F
DRAM 2048 MB
537Copyright © 2012, Juniper Networks, Inc.
Chapter 25: Monitoring the HCM

Juniper M Series Specifications

General

Brand	Juniper
Model	M Series
Category	Network Router
Language	English