3COM 2250 User Manual
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Baseline Switch 2250 Plus

(3C16476BS) User Guide

http://www.3com.com/

Part No. DUA16476B-SAA02

Published April 2005

3Com Corporation • 350 Campus Drive • Marlborough • MA USA 01752-3064

Copyright © 2004, 2005, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

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If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

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If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014(June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR252.227-7015(Nov 1995) or FAR52.227-14(June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

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Improving our environmental record on a continual basis.

End of Life Statement

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Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depletingmaterial.

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The documentation for this product is printed on paper that comes from sustainable, managed forests; it is fully biodegradable and recyclable, and is completely chlorine-free.The varnish isenvironmentally-friendly,and the inks arevegetable-basedwith a lowheavy-metalcontent.

CONTENTS

ABOUT THIS GUIDE

 

Conventions

5

 

 

 

 

 

 

Related Documentation

6

 

 

 

Documentation Comments

6

 

 

1

 

INTRODUCING THE BASELINE SWITCH

 

Overview of the Baseline Switch 2250 Plus

7

 

Features and Capabilities

7

 

 

 

Autosensing of MDI/MDIX Connections

7

 

Autonegotiating 10/100 Mbps Ports

7

 

SFP Ports

8

 

 

 

 

 

 

Traffic Prioritization

8

 

 

 

 

Forwarding of BPDU Packets

8

 

 

Physical Features

9

 

 

 

 

 

Front Panel

 

9

 

 

 

 

 

Rear Panel

12

 

 

 

 

 

Package Contents

12

 

 

 

 

2

 

 

 

INSTALLING THE SWITCH

 

 

 

Before You Begin

13

 

 

 

 

 

Positioning the Switch

13

 

 

 

 

Aufstellen des Switch

14

 

 

 

 

Rack-Mounting or Free-Standing

14

 

 

Using the Mounting Kit

14

 

 

 

Montagesatz Anweisungen

15

 

 

Placing Units On Top of Each Other 15

Supplying Power to the Switch

16

Checking for Correct Operation 16

Connecting a Network Device

17

Using SFP Transceivers 18

 

Approved SFP Transceivers

18

Inserting an SFP Transceiver

18

Removing an SFP Transceiver

19

 

Performing Spot Checks

19

 

 

 

3

 

 

CONNECTING TO THE WEB INTERFACE

 

 

Requirements for Accessing the Web Interface

21

 

Running the Discovery Application

21

 

 

Logging On to the Web Interface

22

 

 

Navigating the Web Interface

23

 

 

 

Menu

23

 

 

 

 

 

Buttons

24

 

 

 

 

 

Port Status 24

 

 

 

 

 

Accessing the Interface Without Using Discovery

24

 

DHCP Assigned IP Address

25

 

 

 

Manually Assigned (Static) IP Address 25

 

4

 

 

 

 

CONFIGURING THE SWITCH

 

 

 

 

Configuration Overview

27

 

 

 

 

Viewing Summary Information

27

 

 

Changing the Admin Password

28

 

 

Modifying the IP Address Settings

29

 

 

Automatic IP Configuration

29

 

 

Setting the IP Address

30

 

 

Configuring Port Settings

31

 

 

 

Basic Port Configuration

31

 

 

Advanced Port Configuration

32

 

Default Port Settings

32

 

 

 

Configuring VLANs

 

32

 

 

 

 

Creating a VLAN

 

33

 

 

 

 

Deleting VLANs

 

33

 

 

 

 

Modifying VLANs

 

34

 

 

 

 

Defining VLAN Membership

34

 

Sample VLAN Configurations

34

 

Configuring Trunking

36

 

 

 

 

Guidelines for Creating Trunks

36

 

Creating, Modifying, and Deleting Trunks 37

 

Defining Trunk Membership

37

 

Viewing Trunk Information

37

 

Monitoring Traffic

38

 

 

 

 

Using the System Tools 39

 

 

 

Restarting the Switch

39

 

 

 

Resetting and Backing Up/Restoring Configuration 39

 

Upgrading the System Software 40

 

Configuring the Spanning Tree

41

 

802.1p Prioritization

41

 

 

5

 

 

 

 

TROUBLESHOOTING

 

 

 

 

Resetting to Factory Defaults

43

 

 

Forgotten Password

 

43

 

 

 

 

Forgotten Static IP Address

44

 

 

Solving LED Issues

44

 

 

 

 

If the Problem Persists

45

 

 

A

OBTAINING SUPPORT FOR YOUR PRODUCT

 

Register Your Product

47

 

 

 

Purchase Value-Added Services

47

 

Troubleshoot Online

47

 

 

 

Access Software Downloads

47

 

 

Telephone Technical Support and Repair 48

 

Contact Us 48

 

 

 

 

B

 

 

 

SAFETY INFORMATION

 

 

 

Important Safety Information

51

 

 

France and Peru Only 51

 

 

 

Power Cord Set

52

 

 

 

Consignes Importantes de Sécurité

52

 

France et Pérou Uniquement

53

 

Cordon électrique

53

 

 

 

Wichtige Sicherheitshinweise Informationen 54

 

Stromkabel

54

 

 

 

C

 

 

 

TECHNICAL INFORMATION

 

 

 

Related Standards

57

 

 

Environmental 57

Physical 57

Electrical 57

GLOSSARY

INDEX

REGULATORY NOTICES

ABOUTTHISGUIDE

This guide is intended for use by network administators who are responsible for installing and setting up network equipment. Consequently, it assumes a basic working knowledge of LANs (local area networks).

Diese Anleitung ist für die Benutzung durch Netzwerkadministratoren vorgesehen, die für die Installation und das einstellen von Netzwerkkomponenten verantwortlich sind; sie setzt Erfahrung bei.

If release notes are shipped with your product and the information there differs from the information in this guide, follow the instructions in the release notes.

Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) on the 3Com World Wide Web site:

http://www.3com.com

Conventions

Table 1 andTable 2 list conventions that are used throughout this guide.

Table 1

Notice Icons

 

 

 

 

Icon

Notice Type

Description

 

 

 

 

Information

Information that describes important features

 

note

or instructions

 

Caution

Information that alerts you to potential loss of

 

 

data or potential damage to an application,

 

 

system, or device

 

Warning

Information that alerts you to potential

 

 

personal injury

 

 

 

Table 2 Text Conventions

Convention

Description

 

 

Screen displays

This typeface represents information as it

 

appears on the screen.

 

 

The words “enter”

When you see the word “enter” in this guide,

and “type”

you must type something, and then press

 

Return or Enter. Do not press Return or Enter

 

when an instruction simply says “type.”

 

 

Words in italics

Italics are used to:

 

Emphasize a point.

 

Denote a new term at the place where it is

 

 

defined in the text.

 

Identify menu names, menu commands, and

 

 

software button names. Examples:

From the Help menu, selectContents.

Click OK.

6 ABOUTTHISGUIDE

Related Documentation

In addition to this guide, each 3Com Baseline Switch 2250 Plus documentation set includes the following:

Online Help – Accessible from the Web interface, provides information that helps you perform tasks using the Web interface.

Release Notes – Provide information about the current software release, including new features, modifications, and known problems.

Documentation Comments

Your suggestions are very important to us. They will help make our documentation more useful to you. Please e-mailcomments about this document to 3Com at:

pddtechpubs_comments@3com.com

Please include the following information when contacting us:

Document title

Document part number (on the title page)

Page number (if appropriate)

Example:

3Com Baseline Switch 2250 Plus User Guide

Part number: DUA16476B-SAA01

Page 25

Please note that we can only respond to comments and questions about 3Com product documentation at this e-mailaddress. Questions related to technical support or sales should be directed in the first instance to your network supplier.