ABOUT THIS GUIDE

Before You Start

About Your CD-ROM

Conventions

Related Documentation

Accessing Online Documentation

Documentation Comments

Product Registration

INTRODUCING THE SWITCH 3812 AND SWITCH 3824

About the Switch

Summary of Hardware Features

Switch-Front View Detail

10BASE-T／100BASE-TX／

1000BASE-T Ports

SFP Ports

LEDs

Console Port

Switch-Rear View Detail

Power Socket

Default Settings

INSTALLING THE SWITCH

Package Contents

Choosing a Suitable Site

Rack-mounting

Placing Units On Top of Each Other

The Power-up Sequence

Powering-up the Switch

Checking for Correct Operation of LEDs

Choosing the Correct Cables

SFP Operation

Approved SFP Transceivers

Inserting an SFP Transceiver

Removing an SFP Transceiver

SETTING UP FOR MANAGEMENT

Setting Up Overview

IP Configuration

Preparing for Management

Manually Configuring IP Information

Connecting to the Console Port

Viewing Automatically Configured IP Information

Using 3Com Network Supervisor

Connecting to the Console Port

Methods of Managing a Switch

Command Line Interface Management

Web Interface Management

SNMP Management

Setting Up Command Line Interface Management

CLI Management via the Console Port

CLI Management over the Network

Setting Up Web Interface Management

Pre-requisites

Web Management Over the Network

Setting Up SNMP Management

Pre-requisites

Default Users and Passwords

Changing Default Passwords

PROBLEM SOLVING

Solving Problems Indicated by LEDs

Solving Hardware Problems

Solving Communication Problems

Solving Software Upgrade Problems

SAFETY INFORMATION

Power Cord Set-Japan

Important Safety Information

Linformation de Securite Importante

Wichtige Sicherheitsinformationen

PIN-OUTS

Null Modem Cable

PC-AT Serial Cable

Modem Cable

RJ-45 Pin Assignments

TECHNICAL SPECIFICATIONS

Switch 3812 and Switch 3824

TECHNICAL SUPPORT

Online Technical Services

World Wide Web Site

3Com Knowledgebase Web Services

3Com FTP Site

Support from Your Network Supplier

Support from 3Com

Internet Support

Telephone Support

Returning Products for Repair

Contacting 3Com Support

INDEX

REGULATORY NOTICES

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