
308656-14.00 Rev 00
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Contents
Preface
Before You Begin ............................................................................................................xvii
Text Conventions ...........................................................................................................xviii
Acronyms .........................................................................................................................xix
Hard-Copy Technical Manuals ........................................................................................xxv
How to Get Help .............................................................................................................xxv
Chapter 1
Introduction
Preventing Problems .......................................................................................................1-1
Reading the Release Notes and Relevant Documentation ......................................1-2
Minimizing Disruption When Installing New Software ..............................................1-2
Selecting the Proper Tool for Configuring a Router ..................................................1-2
Saving Your Configuration Changes ........................................................................1-3
Backing Up Your Files ..............................................................................................1-3
Maintaining Consistent Files in Multiple Flash Memory Cards ................................1-3
Handling Flash Memory Cards to Prevent Static Damage .......................................1-4
Responding to a Failed prom Command ..................................................................1-4
Preparing to Troubleshoot ...............................................................................................1-4
Getting Acquainted with the Troubleshooting Tools ..................................................1-4
Using the System Log to Display Event Messages ...........................................1-5
Displaying and Changing Configuration Settings and Statistics ......................1-10
Using the ping Command ................................................................................1-20
Using the Packet Capture Tool ........................................................................1-20
Using Inbound Telnet to Access the Technician Interface ................................1-21
Taking a Snapshot of Your Network .......................................................................1-22
Documenting Each Step ...............................................................................................1-23
Performing One Corrective Task at a Time ...................................................................1-24
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