You can also physically view the craft interface to see the alarm indicators and alarm
descriptions displayed on the LCD display.
Display Current Cooling System Alarms
Purpose To determine the details of the current cooling system alarms.
Action For information that triggers cooling system alarms in each router type, see “Gather
Component Alarm Information” on page 67. For fan alarms by router type, see Table 91
on page 346.
To display the current cooling system alarms, use the following command:
user@host> show chassis alarms
Sample Output
user@host> show chassis alarms
2 alarms currently active
Alarm time Class Description
2002-04-08 15:25:12 PDT Major Rear left fan stopped spinning
2002-04-08 15:25:12 PDT Major Rear left fan Failure
Meaning The command output displays the current cooling system alarms, including the time and
date stamp, severity level, and description.Table 91 on page 346 shows the possible cooling
system alarms for each router type. The alarm LCD short version appears on the craft
interface LCD display. The alarm long version appears at the CLI when you use the show
chassis alarms command.
Table 91: Cooling System Alarm Messages
CLI Long VersionLCD Short VersionRouting Platform
fan-name stopped spinningN/AM5 and M10
fan-name removedN/A
Too few fans installed or workingN/A
fan-name stopped spinningN/AM7i and M10i
fan-name removedN/A
Too few fans installed or workingN/A
fan-name stopped spinningN/AM20
fan-name removedN/A
Too few fans installed or workingN/A
Copyright © 2012, Juniper Networks, Inc.346
M Series and T Series Routers Monitoring and Troubleshooting Guide
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