Alarm Severity Classes; Verifying Active Alarms On Mx104 Routers - Juniper MX104 Hardware Manual

Alarm Severity Classes

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Verifying Active Alarms on MX104 Routers

Purpose
Action
Meaning
Copyright © 2017, Juniper Networks, Inc.
Alarms on the MX104 routers have two severity classes:
Major (steady red)—Indicates a critical situation on the router that has resulted from
one of the following conditions. A red alarm condition requires immediate action.
One or more hardware components have failed.
One or more hardware components have exceeded temperature thresholds.
An alarm condition configured on an interface has triggered a critical warning.
Minor (steady yellow)—Indicates a noncritical condition on the router that, if left
unchecked, might cause an interruption in service or degradation in performance. A
minor alarm condition requires monitoring or maintenance.
A missing rescue configuration generates a minor system alarm.
Chassis Conditions That Trigger Alarms
Verifying Active Alarms on MX104 Routers on page 199
Monitoring System Log Messages on MX104 Routers on page 200
Use the monitoring functionality to view alarm information for the MX104 routers, including
alarm type, alarm severity, and a brief description for each active alarm on the router.
Observe the system LED on the front panel of the router. If the router is functioning
normally with no alarms, the system LED lights green steadily.
Issue the CLI
show chassis alarms
in the sample output, the value
user@host> show chassis alarms
2 alarms currently active
Alarm time
2010-01-01 00:05:24 UTC
2010-01-01 00:05:24 UTC
When the router is functioning normally with no active alarms, the CLI displays the
output as shown:
user@host> show chassis alarms
No alarms currently active
Table 76 on page 200 lists the alarm output fields.
Chapter 26: Troubleshooting Components
command to verify the status of the router. As shown
indicates the severity of the alarm.
Class
Class Description
Minor Loss of communication with Backup RE
Major Fan Tray Failure
199