Cisco 10000 Series Troubleshooting Guide

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Cisco 10000 Series Router Troubleshooting Guide
OL-0439-02
Chapter 1 Basic Troubleshooting Tasks and Startup Issues
Hardware Troubleshooting Flowchart
A malfunctioning blower or blocked air passages could result in these alarms asserting at lower ambient
temperatures.
For customer sites where ambient temperatures are frequently close to 40 degrees C, and/or for
customers who do not wish to receive these alarms, the minor and major thresholds can be adjusted.
Hardware Troubleshooting Flowchart
Use Figure 1-1 to determine which component of your Cisco 10000 series router is malfunctioning.
Figure 1-1 describes a series of hardware dependent startup events that must take place for a Cisco 10000
series router to allow the passage of IP traffic. At each main point of the flowchart, there are pointers to
the chapters in this guide that describe how to troubleshoot individual pieces of hardware.
Note This flowchart does not address software configuration problems.
Figure 1-1 Hardware Troubleshooting Flowchart
Correct
input
wiring
Reseat
PRE
and restart
Reseat
line card
and restart
System
startup
successful
Obtain
technical
assistance
*Miswire
LED
off
?
PEM
Power OK
LED on
?
PRE
Status
LEDs OK
?
PEM
Power OK
LED on
?
PRE
status LEDs
OK?
Line
card LEDs
OK
?
No
Yes
Yes
No
No
Yes
Yes
Yes
No
No
No
Yes
No
Yes
Line card
LEDs on
?
Troubleshoot
PEM
See section
"PEM Faults"
See section
"PRE Module
Faults"
See appropriate
line card fault
section
Turn
on
PEM
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Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English