Contents

 

Recovering from Lost Cluster Member Connectivity

45-13

 

Preventing Autonegotiation Mismatches

45-13

 

 

Troubleshooting Power over Ethernet Switch Ports

45-13

 

Disabled Port Caused by Power Loss

45-14

 

 

Disabled Port Caused by False Link Up 45-14

 

 

SFP Module Security and Identification

45-14

 

 

 

Monitoring SFP Module Status

 

45-15

 

 

 

 

Monitoring Temperature

45-15

 

 

 

 

 

 

Using Ping

45-15

 

 

 

 

 

 

 

 

 

Understanding Ping

45-15

 

 

 

 

 

 

Executing Ping

45-16

 

 

 

 

 

 

 

Using Layer 2 Traceroute

45-17

 

 

 

 

 

 

Understanding Layer 2 Traceroute

45-17

 

 

 

Usage Guidelines

 

45-17

 

 

 

 

 

 

 

Displaying the Physical Path

45-18

 

 

 

 

Using IP Traceroute

45-18

 

 

 

 

 

 

 

Understanding IP Traceroute

45-18

 

 

 

 

Executing IP Traceroute

45-19

 

 

 

 

 

Using TDR

45-20

 

 

 

 

 

 

 

 

 

Understanding TDR

45-20

 

 

 

 

 

 

Running TDR and Displaying the Results

45-21

 

 

Using Debug Commands

45-21

 

 

 

 

 

 

Enabling Debugging on a Specific Feature

45-21

 

Enabling All-System Diagnostics

45-22

 

 

 

Redirecting Debug and Error Message Output

45-22

 

Using the show platform forward Command

45-23

 

 

Using the crashinfo Files

45-25

 

 

 

 

 

 

Basic crashinfo Files

45-25

 

 

 

 

 

 

Extended crashinfo Files

45-26

 

 

 

 

 

Using On-Board Failure Logging

45-26

 

 

 

 

Understanding OBFL

45-26

 

 

 

 

 

 

Configuring OBFL

45-27

 

 

 

 

 

 

 

Displaying OBFL Information

45-28

 

 

 

 

Configuring Online Diagnostics

 

 

 

 

 

C H A P T E R 46

 

46-1

 

 

 

 

Understanding Online Diagnostics

46-1

 

 

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

xxxviii

OL-9775-02

Page 38
Image 38
Cisco Systems 3750E manual Xxxviii, 45-14