3COM 3C16950, 3C16951 User Manual

SuperStack® II Switch 1100

User Guide

3C16950, 3C16951

http://www.3com.com/

Part No. DUA1695-0AAA04 Published April 1999

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 1999, 3Com Technologies. 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 Technologies.

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

3Com Technologies provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

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.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software describ ed 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 “commercia l item” as defined in FAR 2.101(a) and as such is p rovided with o nly 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 DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (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.

Unless otherwise indicated, 3Com registered tradema rks are registered in the United States and may or may not be registered in other countries.

3Com, the 3Com logo, Net Age, SmartAgent, SuperStack and Transcend are registered trademarks of 3Com Corporation. CoreBuilder and PACE are trademarks of 3Com Corporation. 3ComFacts is a service mark of 3Com Corporation.

All other company and product names may b e trademarks of the respective companies with which they are associated.

Environmental Statement

It is a 3Com policy to be environmentally friendly in all operations. This manual is printed on paper that comes from sustainable, managed European forests. The production process for making the pulp has a reduced AOX level (adsorbable organic halogen) resulting in elemental chlorine-free paper.

The paper is fully biodegradable and recyclable.

ONTENTS

BOUT THIS GUIDE

Conventions 8 Related Documentation 9 Year 2000 Compliance 10 Documentation Comments 10

NTRODUCING THE SWITCH

About the SuperStack II Switch 1100 12

Summary of Features 12

Switch 1100 — Front View Detail 13

Port Connections 13 LEDs 14

Switch 1100 — Rear View Detail 15

Unit Information Label 15 Power Socket 15 Redundant Power System Socket 15 Console Port 15 Expansion Module Slot 16 Transceiver Module Slot 16 Matrix Port 16

Network Configuration Examples 17

Network Segmentation I 17 Network Segmentation II 18

Desktop Switching 19 Configuration Rules for Fast Ethernet 20 Configuration Rules with Full Duplex 21

1100

NSTALLING THE SWITCH

Choosing a Suitable Site 24 Rack-mounting 24

Placing Units On Top of Each Other 25 Stacking Units 26

Stacking Two Units 26 Stacking Up To Four Units 27

The Power-up Sequence 29

Connecting a Redundant Power System 29 Powering-up the Switch 1100 29

Checking for Correct Operation 29 Choosing the Correct Cables 30 Solving Problems Indicated by LEDs 31 Managing the Switch 32

AFETY INFORMATION

Important Safety Information 34 L’information de Sécurité Importante 36 Wichtige Sicherheitsinformationen 38

OUTS

PIN-

Null Modem Cable 39 PC-AT Serial Cable 39 Modem Cable 40 RJ45 Pin Assignments 40

ECHNICAL SPECIFICATIONS

ECHNICAL SUPPORT

Online Technical Services 43

World Wide Web Site 43

3Com Knowledgebase Web Services 43

3Com FTP Site 44

3Com Bulletin Board Service 44

3Com Facts Automated Fax Service 45 Support from Your Network Supplier 45 Support from 3Com 45 Returning Products for Repair 47

LOSSARY

NDEX

3COM C

EMC S

ORPORATION LIMITED WARRANTY

TATEMENTS

BOUT

HIS

UIDE

This guide provides all the information you need to install and use a SuperStack change the way the Switch works using management software, refer to the “SuperStack II Switch Management Guide” (part number DUA1695-0BAA0x).

The guide is intended for use by network administrators who are responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks).

This guide is intended for use with both Switch 1100 models:

■ 3C16950 — 24 10BASE-T ports

■ 3C16951 — 12 10BASE-T ports

All pictures and example screens show the 24-port model, however, all procedures apply to the 24-port model and the 12-port model.

If the information in the release notes that are shipped with your product 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) or HTML on the 3Com World Wide Web site:

http:/ /www.3com.com /

II Switch 1100 unit with default settings. If you want to

8 A

BOUT THIS GUIDE

Conventions

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

Ta b l e 1

Icon Notice Type Description

Ta b l e 2

Convention Description

Screen displays This typeface represents information as it appears on the

Syntax The word “syntax” means that you must evaluate the syntax

Commands The word “command” means that you must enter the

The words “enter” and “type”

Keyboard key names If you must press two or more keys simultaneously, the key

Notice Icons

Information note Information that describes important features 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

Text Conventions

screen.

provided and then supply the appropriate values for the placeholders that appear in angle brackets. Example:

To enable RIPIP, use the following syntax:

SETDefault !<port> -RIPIP CONTrol = Listen

In this example, you must supply a port number for <port>.

command exactly as shown and then press Return or Enter. Commands appear in bold. Example:

To remove the IP address, enter the following command:

SETDefault !0 -IP NETaddr = 0.0.0.0

When you see the word “enter” in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”

names are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

Year 2000 Compliance

Documentation Comments

For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page:

http://www.3com.com/products/yr2000.html

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

pddtechpubs_comments@3com.com

Please include the following information when commenting:

■

Document title

■

Document part number (on the title page)

■

Page number (if appropriate)

Example:

■

SuperStack II Switch 1100 User Guide

■

Part Number DUA1695-0AAA03

■

Page 21

NTRODUCING THE

This chapter contains introductory information about the Switch and how it can be used in your network. It covers the following topics:

■ About the SuperStack II Switch 1100

■ Switch 1100 — Front View Detail

■ Switch 1100 — Rear View Detail

■ Network Configuration Examples

■ Configuration Rules for Fast Ethernet

■ Configuration Rules with Full Duplex

WITCH

1100

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About the SuperStack II Switch 1100

Summary of Features

The SuperStack® II system solves the problem of growth in dynamic network environments and provides everything you need for successful workgroup networking. Much more than a collection of stackable components, the system comprises a complete, integrated architecture of modular parts that are easy to install and use.

As part of this SuperStack II system, the Switch 1100 meets the challenge of modern LANs and allows you to add features and capacity as your network expands.

The Switch has the following hardware features:

■

12 or 24 Ethernet 10BASE-T ports

■

Two Fast Ethernet auto-negotiating 10BASE-T/100BASE-TX ports

■

Matrix port for connecting units in the Switch 1100/3300 family to

form a stack:

■

Connect two units back-to-back using a single Matrix Cable

■

Connect up to four units using Matrix Cables linked to a Matrix Module

■

Slot for an Expansion Module

■

Slot for a Transceiver Module (10Mbps Ethernet)

■

SuperStack II architecture:

■

Connects to Redundant Power System / Uninterruptible Power System

■

19-inch rack or stand-alone mounting

For information about the software features of the Switch, refer to the “SuperStack II Switch Management Guide” (DUA1695-0BAA0x).

Switch 1100 — Front View Detail

Figure 1

Port Connections 10BASE-T Ports

The Switch has 12 or 24 10BASE-T ports configured as MDIX (cross-over). The maximum segment length is 100m (328ft) over Category 3, 4, or 5 twisted pair cable.

Switch 1100 — Front View Detail 13

Switch 1100 — Front view

As these ports are configured as MDIX (cross-over), you need to use a cross-over cable to connect to devices whose ports are MDIX-only. See

“Choosing the Correct Cables”

on page 30 for more information.

10BASE-T/100BASE-TX Ports

The Switch has two auto-negotiating 10BASE-T/100BASE-TX ports configured as MDIX (cross-over). These ports can be set to 10BASE-T half duplex, 10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full duplex, or they can automatically detect the speed and duplex mode of a link and provide the appropriate connection. The maximum segment length is 100m (328ft) over Category 5 twisted pair cable.

As these ports are configured as MDIX (cross-over), you need to use a cross-over cable to connect to devices whose ports are MDIX-only. See

Choosing the Correct Cables”

“

on page 30 for more information.

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LEDs

Ta b le 3

lists the LEDs visible on the front of the Switch, and their states

according to color. For information on using the LEDs for problem solving,

Checking for Correct Operation” on page 29.

see “

Ta b l e 3

LED Color Indicates

TCVR Yellow Port 1 is a Transceiver Module fitted to the rear of the

Port Status LEDs

Packet Yellow Packets are being transmitted/received on the port.

Status Green A link is present, and the port is enabled.

Expansion Module Port Status LEDs

Packet Yellow Packets are being transmitted/received on the

Status Yellow A valid Expansion Module is installed.

LED behavior

Switch.

Off Port 1 is operating as a 10BASE-T port.

Off No packets are being transmitted/received on the port.

Green flashing A link is present, but the port is disabled.

Off No link is present.

Expansion Module port(s).

Off No packets are being transmitted/received on the

Expansion Module port(s).

Yellow flashing An unrecognized Expansion Module is installed.

Off No Expansion Module is installed.

Unit LEDs

1–8 Green The Switch forms a stack with other Switch units; the

LED indicates the position of the Switch in the stack and that a link is present. Note that although there are eight LEDs, only four Switch units can be stacked at present.

Off The Switch is stand-alone.

Power/Self Test LED

Green The Switch is powered-up.

Green flashing The Switch is either downloading software or is

initializing (which includes running a Power On Self Test).

Yellow The Switch has failed its Power On Self Test.

Off The Switch is not receiving power.

Switch 1100 — Rear View Detail

Figure 2

Switch 1100 — Rear View Detail 15

Switch 1100 — Rear view

Unit Information

Label

Power Socket

Redundant Power

System Socket

Console Port

This label shows the following:

■

The 3Com product name of the Switch

■

The 3Com 3C number of the Switch

■

The unique MAC address (Ethernet address) of the Switch

■

The serial number of the Switch

You may need this information for fault reporting purposes.

The Switch automatically adjusts its power setting to any supply voltage in the range 90–240V A.C.

To protect against internal power supply failure, you can use this socket to connect a SuperStack II Advanced Redundant Power System (RPS) to the Switch. See “

Connecting a Redundant Power System” on page 29.

The console port allows you to connect a terminal and perform remote or local out-of-band management. The console port uses standard null modem cable and is set to auto-baud, 8 data bits, no parity and 1 stop bit.

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Expansion Module

Slot

Transceiver Module

Slot

Matrix Port

You can use this slot to install an Expansion Module; for example, a 100BASE-FX Module that provides an additional high-speed link, or a Matrix Module that provides four matrix ports for stacking Switch units together. 3Com provides a range of Expansion Modules; contact your supplier for availability. For more information about Matrix Modules, see

Stacking Units” on page 26.

“

When an Expansion Module is not installed, ensure the blanking plate is secured in place.

You can use this slot to install a Transceiver Module. When a Transceiver Module is installed, the Transceiver Module port becomes port 1 and the port labelled 1 on the front panel becomes inactive. The Transceiver Module can provide a 10Mbps Ethernet half duplex link to the rest of your network using various media such as fiber and coaxial cabling.

When a Transceiver Module is not installed, ensure the blanking plate is secured in place.

The matrix port allows you to:

■

Stack the Switch with another unit in the Switch 1100/3300 family

using a single Matrix Cable

■

Stack the Switch with up to three other units in the Switch 1100/3300

family, if one of the units has a Matrix Module installed

For more information about the role of the matrix port, see “

Stacking

Units” on page 26.

Network Configuration Examples 17

Network Configuration Examples

Network

Segmentation I

The following illustrations show some examples of how the Switch can be placed on your network.

Figure 3

shows how the Switch 1100 fits into a large corporate network with a Fast Ethernet infrastructure. A Switch is positioned on each floor and servers are centralized in the basement.

Figure 3

Using the Switch 1100 to segment your network

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Network

Segmentation II

Figure 4

shows the Switch 1100 in a second workgroup situation. This setup could be that of a small office within a large corporation, or part of a larger corporate network. Most of the switch ports have multiple endstations.

Figure 4

Using the Switch 1100 to segment your network

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