CONTENTS 7

Prerequisites

48

 

Web Management Over the Network

49

Setting Up SNMP Management V1 or V2

50

Prerequisites

50

 

Default Users and Passwords 50

Configuration Conversion Utility 51

4

PROBLEM SOLVING

 

 

 

 

Solving Problems Indicated by LEDs

54

 

Solving Hardware Problems

55

 

 

Solving Communication Problems

57

 

 

 

 

5

UPGRADING SOFTWARE

 

 

 

Upgrade methods

59

 

 

 

Upgrading from the Command Line Interface 60

 

Check Flash Space Available 60

 

Backup Switch Software

61

 

 

Upgrade Using TFTP

61

 

 

Upgrade Using FTP (via network port) 63

XModem (using the console cable)

65

Upgrading from the Bootrom Interface

66

Introduction

66

 

 

TFTP

68

 

 

 

FTP

68

 

 

 

XModem

69

 

 

Upgrading the Bootrom 70

 

 

Bootrom Upgrade using TFTP

71

 

Bootrom Upgrade using FTP

71

 

Bootrom Upgrade using XModem

72

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3Com 3CR17661-91, 3CR17662-91, 3CR17660-91 manual Problem Solving