Table 88: Checklist For Monitoring The Cooling System - Juniper M Series Monitoring And Troubleshooting Manual

CHAPTER 11
Monitoring the Cooling System
Checklist for Monitoring the Cooling System
Purpose
Action
Copyright © 2012, Juniper Networks, Inc.
Checklist for Monitoring the Cooling System on page 317
Understanding the Cooling System on page 318
Checking the Cooling System Status on page 339
Checking the Cooling System Alarms on page 345
Maintaining the Air Filter on page 349
Verifying a Fan Failure on page 349
Verifying an Impeller Failure on page 349
Replacing a Cooling System Component on page 350
You monitor and maintain the cooling system to keep an acceptable operating
temperature for the router chassis and its components. (See

Table 88: Checklist for Monitoring the Cooling System

Monitor Cooling System Tasks
"Checking the Cooling System Status" on
page 339
"Checking the Cooling System Alarms" on page 345
1. Check the Alarm Indicators on the Craft
Interface on page 345
2. Display Current Cooling System Alarms
on page 346
3. Display Cooling System Error Messages in
the System Log File on page 348
"Maintaining the Air Filter" on page 349
"Verifying a Fan Failure" on page 349
Table 88 on page
Command or Action
show chassis environment
show chassis craft-interface
Check the router craft interface.
show chassis alarms
show log messages | match fan
Inspect the air filter. If dirty, clean it; if
damaged, replace it.
Perform a swap test on the fan. If defective,
replace it without powering down the router.
317.)
317