Troubleshooting M40E Hardware Components; Overview Of Troubleshooting Resources For The M40E Router; M40E Router Troubleshooting Resources - Juniper M40E Hardware Manual

CHAPTER 15
Troubleshooting M40e Hardware
Components

Overview of Troubleshooting Resources for the M40e Router

M40e Router Troubleshooting Resources

Copyright © 2010, Juniper Networks, Inc.
Overview of Troubleshooting Resources for the M40e Router on page 145
Troubleshooting the Cooling System on the M40e Router on page 150
Troubleshooting FPCs on the M40e Router on page 152
Troubleshooting PICs on the M40e Router on page 153
Troubleshooting the M40e Power System When All LEDs on Both Supplies Are
Off on page 155
Troubleshooting the M40e Power System When All LEDs on One Supply Are Off or
LED States Are Not Correct on page 155
M40e Router Troubleshooting Resources on page 145
M40e Router LED Overview on page 146
M40e Chassis and Interface Alarm Messages on page 147
Using Blown Fuse Indicators to Troubleshoot the M40e Router on page 149
To troubleshoot a router, you use the Junos OS command-line interface (CLI), LCD,
alarms, devices connected to the alarm relay contacts on the TXP-CIP, and LEDs on both
the components and craft interface.
LEDs—When the Routing Engine detects an alarm condition, it lights the red or yellow
alarm LED on the craft interface as appropriate. In addition, you can also use the
component-specific LEDs on the craft interface and on the faceplate of a component
to troubleshoot the routing matrix.
See "M40e Router LED Overview" on page 146
LCD—When a red or yellow alarm occurs, the cause of the alarm messages is displayed
on the craft interface LCD. Use the CLI to display more information about the alarm.
Alarm devices connected to the alarm relay contact on the TXP-CIP—When a red or
yellow alarm occurs, it trips the corresponding alarm relay contact on the TXP-CIP.
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