Chapter 34 Troubleshooting - Cisco Catalyst 3750 Software Configuration Manual

Metro switch

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Table of Contents

Troubleshooting

This chapter describes how to identify and resolve software problems related to the Cisco IOS software

on the Catalyst 3750 Metro switch.

Additional troubleshooting information is provided in the hardware installation guide.

For complete syntax and usage information for the commands used in this chapter, refer to the command

reference for this release and the Cisco IOS Command Summary for Release 12.1.

This chapter consists of these sections:

Recovering from Corrupted Software By Using the XMODEM Protocol, page 34-2

Recovering from a Lost or Forgotten Password, page 34-3

Preventing Autonegotiation Mismatches, page 34-7

SFP Module Security and Identification, page 34-8

Using Ping, page 34-8

Using Layer 2 Traceroute, page 34-10

Using IP Traceroute, page 34-11

Using Debug Commands, page 34-13

Using the show platform forward Command, page 34-14

Using the crashinfo File, page 34-17

Recovery procedures require that you have physical access to the switch.

C H A P T E R

Catalyst 3750 Metro Switch Software Configuration Guide

Troubleshooting