3COM 16985ua-bk User Manual

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SuperStack® 3

Switch 3300 MM User Guide

3C16988A

http://www.3com.com/

Part No. DUA1698-8AAA02 Published August 2000

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3Com Corporation 5400 Bayfr ont Plaza Santa Clara, Cali fornia 95052-8145

Copyright © 2000, 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 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 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 trademarks are registered in the United States and may or may not be registered in other countries.

3Com,Net Age, Sm artAgent, SuperStack and Transcend are registered trademarks of 3Com Corporation. The 3Com logo, CoreBuilder and PACE are trademarks of 3Com Corporation.

Novel l and NetWare are registered trademarks of Novell Incorporated. Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. All other company and product names may be 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.

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ONTENTS

BOUT THIS GUIDE

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

NTRODUCING THE SWITCH

About the SuperStack 3 Switch 3300 MM 12

Summary of Features 12

Switch 3300 M M — Front View Detail 13

10BASE-T/ 100BASE-TX Ports 13

LEDs 13

Switch 3300 M M — Rear View Detail 15

Unit Information Label 15 Power Socket 15 Redundant Power System Socket 15 Console Port 16 Matr ix Po rts 1 6

Network Configuration Examples 17

Switch 3300 MM as a Segmentation Switch 17 Switch 3300 MM as a Collapsed Backbone Switch 18

Switch 3300 MM as a Desktop Switch 19 Configuration Rules for Fast Ethernet 20 Configuration Rules with Full Duplex 21

3300 MM

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NSTALLING THE SWITCH

Choosing a Suitable S ite 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 Redunda nt Power System 29 Powering-up the Switch 3300 MM 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 Servic es 45

World Wide Web Site 45

3Com Knowledgebase Web Services 45

3Com FTP Site 4 6 Support from Your Network Supplier 46 Support from 3Com 46 Returning Products for R epair 48

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LOSSARY

NDEX

3COM C

EGULATORY NOTICES

ORPORATION LIMITED WARRANTY

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BOUT

HIS

UIDE

This guide provides all the information you need to install and use a SuperStack you want to change the way the Switch works using management software, refer to the “SuperStack Switch Management Guide”.

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

If the informat ion in the rel eas e not es that ar e s hipped with y our pro duct 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/

This guide makes reference to the SuperStack 3 Switch 3300 MM. This Switch has t hree fixed Matrix Ports on its rear panel and can be used to stack any 1100/3300 family Switch. Note that any 1100/3300 family Switch fitted with a Matrix Module can also be used to st ack Switches.

3 Switch 3300 MM (3C16988A) unit with default settings. If

All the Switches mentioned in this guide are compatible with the Switches found within the SuperStack 1100/3300 family range.

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8 A

BOUT THIS GUIDE

Conventions

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

Table 1

Icon Notice Type Description

Table 2

Convention Description

Screen displays

Syntax

Commands

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 alert s you to potent ial loss of data or

potential dama ge to an application, system, or device

Warning Information that alerts y o u to p otenti al personal injury

Text Conventions

This typeface represents information as it appears on the screen.

The word “syntax” means th at you must evaluate the synta x provided and then supply the appropriate values for the placeholders that appear in angle brackets. Example:

To change your password, use the following syntax:

system password <password>

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

The word “command” means that you must enter the command exactly as shown and then press Return or Enter. Commands appear in bold. Example:

To display por t information, enter the following command:

bridge port detail

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

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

Press Ctrl+Alt+Del

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Year 2000 Compliance

Documen ta ti on 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 3 Switch 3300 MM User Guide

■

Part Number DUA1698-8AAA02

■

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Product Registration

You can now register your SuperStack Switch on the 3Com web site to receive up-to-date information on your product:

http://support.3com.com/warrantyregistration/register.pl

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NTRODUCING THE SWITCH

This chapter contai ns intr oductory information abou t the Switch and how it can be used in your network. It covers the following topics:

■

About the SuperStack 3 Switch 3300 MM

■

Switch 3300 MM — Front View Detail

■

Switch 3300 MM — Rear View Detail

■

Network Configuration Examples

■

Configuration Rules for Fast Ethernet

■

Configuratio n Rules with Full D uplex

3300 MM

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3300 MM

About the SuperStack 3 Switch 3300 M M

Summary of Features

The SuperStack® 3 Switch 3300 MM connects:

■

your existing 10Mbps devices.

■

high-performance workgroups with a 100Mbps backbone or server

connection.

■

users to dedicated 100Mbps ports in one switch.

In addition, as part of the 3Com

SuperStack range of products, you can combine it with any SuperSt ack II or SuperSta ck 3 system as your network grows.

The Switch has the following hardware features:

■

24 Fast Ethernet auto -neg otiat ing 10BAS E- T/100 BAS E-TX port s

■

Three Matrix Ports to stack the Switch with up to three other units from the Switch 1100/3300 family using three Matrix Cables.

■

SuperStack architecture

Connects to Redundant Power System/Advanced Redundant

■

Power System 19-inch rack or stand-alone mounting

■

For information about the software features of the Switch, refer to the “SuperStack Switch Management Guide”.

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Switch 3300 M M — Front View Detail

Figure 1

Switch 3300 MM — Front View Detail 13

Switch 3300 MM — front view

10BASE-T/

100BASE-TX Ports

LEDs

The Switch has 24 auto-negotiating 10BASE-T/100BASE-TX ports configure d 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”

Table 3

(overleaf) lists the LEDs visible on the front of the Switch, and

page 30

for more information.

their states according to color. For information on usi ng the LEDs for problem solving, see “Solving Problems Indicated by LEDs”

on page 31.

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Table 3

LED behavior

LED Color Indicates Port Status LEDs

Packet Yellow Packets are being transmi tted/received on the port.

Off No packets are being transmitted/received on the

port.

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

Green flashing A link is present, but the port is disabled. Off No link is present.

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 an d that a link is present. Note that although there are eight LEDs, only four Sw itch units can be stacked at present.

Off The Switch is stand-alone.

Power/Self Test LED

Green The S w it c h is powe red-up. Green flashing The Switc h is ei th e r do wn lo a d in g so ftware or is

initial izin g (wh ich i nclud es runn in g a Pow er On Sel f

Test). Yellow The Sw itc h has failed its Po w e r O n Self Te st. Off The Switch is not re ceiving power.

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Switch 3300 M M — Rear View Detail

Figure 2

Unit Information Lab e l

Switch 3300 MM — rear view

Switch 3300 MM 24 Port

3C16988

MAC Addr: XXXXXXXXXX Serial XXXXXXXXXXXX

Console

(max) 19200,8,1,N

Switch 3300 MM — Rear View Detail 15

Unit 2 Unit4

Unit 3

Power Socket

Redundant Power System Socket

Unit Information

Label

Power Socket

Redundant Power

System Socket

Console Port

Matrix Ports

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 Advanced Redundant Power System (ARP S) to the Switch. See “Connecting a Redundant Power System”

on page29.

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3300 MM

Console Port

Matrix Ports

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.

The Matrix ports allow you to stack the Switch with up to three other units from the Switch 1100/3300 family using three Matrix Cables.

For more information about the role of the Matrix ports, see “Stacking

Units” on page 26.

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Network Configura ti on Examples 17

Network Configuration Examples

Switch 3300 MM as a

Segmentation Switch

The following il lustra tions show some ex amples of how th e Switch can be used in your network.

The example in Figure 3

shows how a Switch 3300 MM stack can segment a network of shared 10Mbps and 100Mbps connections. There is a 10/100 shared segment on each floor, and these segments are connected to the Switch which is positioned in the basement.

Figure 3

Local serveron a shared 100Mbps connection

Using the Switch to segment your network

Dual Speed Hub 500

Endstations on shared10Mbps and 100Mbpsconnections

100Mbps

Local serveron a shared 100Mbps connection

Switch 1100/3300

Endstations and serverson switched 10Mbps and100Mbps connections

Switch 3300 MM

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3300 MM

Switch 3300 MM as a

Collapsed Backbone

Switch

The example i n Figure 4

shows how a Switc h 3 300 MM s tack c an ac t as a

backbone f or both shared and switched network segments.

Figure 4

Endstations on shared 10Mbps and 100Mbps connections

Using the Switch as a collapsed backbone

Endstations on switched 10Mbps connections

Dual Speed Hub 500

Endstations on switched 10Mbps connections

Dual Speed Hub 500

Switch 1100

Endstations on switched 10Mbps connections

100Mbps

Switch 1100/3300

Switch 3300 MM

Servers on dedicated 100Mbps connections

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Network Configura ti on Examples 19

Switch 3300 MM as a

Desktop Switch

The example in Figure 5

shows how a Switch 3300 MM can be used, within a stack, for a group of users that require dedicated 10Mbps or 100Mbps connections to the desktop. The Switch 3300 SM provides a Gigabit Ethernet connection to a SuperStack II Switch 9300 in the basement whilst the Switch 3300 TM provides a Gigabit Ethernet connection t o a local server.

Figure 5

1000Mbps

Using the Switch in a desktop environment

Switch 3300:

Endstations on switched10Mbps

or 100Mbpsconnections

Local server ona switched

XM MM

1000Mbps connection

Switch 9300

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Configuration Rules for Fast E t hernet

The topology rules for 100Mbps Fast Ethernet are slightly different to those for 10Mbps Ethernet. Figure 6

illustrates the key topolog y rules and provides examples of how they allow for large-scale Fast Ethernet networks.

Figure 6

Fast Ethernet configuration rules

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Configuration Rules with Full Duplex 21

The key topology rules are:

■

Maximum UTP cable length is 100m (328ft) over Cat egory 5 cable.

■

A 412m (1352ft) fiber run is allowed for connecting switch-to-switch, or endstation-to-switch, using half-duplex 100BASE-FX.

■

A total network span of 325m (1066ft) is allowed in single-repeater topologies (one hub stack per wiring closet w ith a fiber run to the collapsed backbone). For example, a 225m (738ft) fiber link from a repeater to a router or switch, plus a 100m (328ft) UTP link from a repeater out to the endstations.

Configuration Rules with Full Duplex

The Switch provid es full duplex support for all its por ts. Full du plex all ows packets to be transmitted and received simultaneously and, in effect, doubles the potential throughput of a link.

With full duplex, the Ethernet topology rules are the same, but the Fast Ethernet rules are:

■

Maximum UTP cable length is 100m (328ft) over Category 5 cable.

■

A 2km (6562ft) fiber link is allowed for connecting switch-to-switch, or endstation-to-switch.

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3300 MM

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NSTALLING THE

This chapter contains the information you need to insta ll and set up the Switch. It covers the following topics:

■

Choosing a Suitable Site

■

Rack-mounting

■

Placing Units On Top of Each Ot her

■

Stacking Units

■

The Power-up Sequence

■

Choosing the Correct Cables

■

Solving Problems Indicated by LEDs

■

Managing the Swit ch

WITCH

WARNING: Safety Information.

components from the Switch 3300 MM or carrying out any maintenance procedures, yo u must read th e safety in formatio n provided in Appendix A of this guide.

AVERTISSEMENT: Consignes de sé curit é.

tout composant du Switch 3300 MM ou d'entamer une procédure de maintenance, lisez les informations relatives à la sécurité qui se trouvent dans l'Appendice A de ce guide.

WARNHINWEIS: Sicherheitsinformationen.

aus dem Sw itch 3300 MM entfernen oder dem Switch 3300 MM hinzufuegen oder Instandhaltungsarbeiten ve rrichten, lesen Sie die Sicherheitsanweisungen, die in Appendix A (Anhang A) in diesem Handbuch aufgefuehrt sind.

Before installing or removing any

Avant d'installer ou d'enlever

Bevor Sie Komponenten

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Choosing a Suitable Site

The Switch is suited for use in an office environment where it can be mounted in a standard 19-inch equipment rack, or free standing. Alternative ly, the Switch can be rack-mounted in a wiring closet or equipment room. A rack-mounting kit, containing two mounting brackets and four screws, is supplied with the Switch.

When deciding where to position the Switch, ensure that:

■

You are able to meet the configuration rules detailed in

“Configurati on Rules for Fast Ethe rnet”

■

The Switch is accessible and cables can be connected easily.

■

Cabling is away from:

Sources of electrical noise such as radios, transmitters and

■

on page 20.

broadband amplifiers Power lines and fluorescent lighting fixtures

■

Water or moisture cannot enter the case of the Switch.

■

Air-flow is not restricted around the Switch or through the vents in the side of the Switch. We recommend that you provide a minimum of 25mm (1in.) clearance.

■

No more than four Switch units are placed on top of one another, if the units are free standing.

Rack-mounting

■

If used in an office environment, the switch is positioned so that any noise from the fan is not disruptive.

The Switch is 1U high and fits in most standard 19-inch racks.

CAUTION:

Disconnect all cables from the Switc h before continuing. Remove all self adhesive pads from the underside of the Switch if they have been fitted.

Place the Switch the right way up on a hard flat surface, with the front

facing towards you. Locate a mounting bracket over the mounting holes on one side of the

Switch, as shown in Figure 7

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Placing Units On Top of Each Other 25

Figure 7

Insert the two screws and tighten with a suitable screwdriver.

Fitting a bracket for rack mounting

You must use the screws supplied with the mounting brackets. Damage caused to the unit by using incorrect screws invalidates your warranty.

Repeat steps 2 and 3 for the other side of the Switch.

Placing Un its On Top of Each Other

Insert the Switc h into the 19-inch rack and secure with suitable screws (not provided). Ensure that ventilation holes are not obstructed.

Connect network cabling.

If the Switch units are free-standing, up to four units can be placed one on top of the other. If you are mixing a variety of SuperStack Switch and Hub units, the smaller units must be positioned at the top.

If you are placing Switch units one on top of the other, you must use the self-adhesive rubber pads supplied. Apply the pads to the underside of each Switch, sticking one in the marked area at each corner. Place the Switch un its on top of each other, ensuring that the pads of the upper unit line up with the recesses of the lower unit.

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Stacki ng Un i ts

Stacking Two Units

Units in the Switch 1100/3300 family can be stacked together and then treated as a single manageable unit with one IP address.

The Matrix Ports on the r e ar of the Swit ch allo w you to conn ect a to tal of four units i n the Switch 1100/3300 family together using Matrix Cables.

You need only one SuperStack 3 Switch 3300 MM per stack.

The Switches in a stack are numbered 1 to 4, from the bottom up, for management purposes. The SuperStack 3 Switch 3300 M M will always be identified as Unit 1 and sh ould therefore be positioned at the bottom of the stack.

You can stack a Switch 33 00 MM to any Switch from the 1100/3300 family with a single Matrix Cable. To do this:

Power-off both units.

Arrange the units so the Switch 3300 MM is at the bottom of the stack.

They can be rack-mounted or free-standing; if you choose to have them free-standing, remember to position the rubber feet as detailed in

“Placing Units On Top of Each Other”

on page 25. When posi tioning the

units, note that Matrix Cables are 1m (3.28ft) long. Connect one end of the Matrix Cable to the Matrix Port of the top

Switch, and the other end to the Matrix Port marked Unit 2 on the Switch 3300 MM (See Figure 8

If you use the management software of the units:

■

Ensure that both units have the same version of management

software

■

Ensure that you re-configure the stack-wide features on both units

For more information about management software, see “Managing the

Switch” on page 32.

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Stacking Units 27

Stacking Up To Four

Units

Figure 8

A stack of two units

Switch 1100/3300

Switch 3300 MM

You can stack an additional three units from the SuperStack ll 1100/3300 family to the Switch 3300 MM.

To stack up to four Switch units:

Power-off all the units.

Arrange the units as required. They can be rack-mounted or free-standing; if you choose to have them free-standing, remember to position the rubber feet as detailed in “Placing Units On Top of Each

Other” on page 25. When positioning the units, note that Matrix Cables

are 1m (3.28ft) long.

Connect the Matrix Cables, as shown in Figure 9

Connect a Matrix Cable to the port marked Unit 2 on the

Switch 3300 MM. Connect the other end of this cable to the Matrix Port on the Switch placed immediately above the Switch 3300 MM.

Connect a second Matrix Cable to the port marked Unit 3 on the Switch 3300 MM. Connect the other end of this cable to the Matrix Port on the next Switch up.

Connect a third Matrix Cable to the port marked Unit 4 on the Switch 3300 MM. Connect the other end of this cable to the Matrix Port on the Switch at the top of the stack.

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If you use the management software of the units:

■

Ensure that all the units have the same version of management software

■

Ensure that you re-configure the stack-wide features on all the units

For more information about management software, see “Managing the

Switch” on page 32.

Figure 9

A stack of three units

Switches

1100/3300

Switch 3300 MM

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The Power-up Sequence 29

The Pow e r-up Sequence

Connecting a

Redundant Power

Powering-up the

Switch 3300 MM

System

The following sections describe how to get your Switch 3300 MM powered-up and ready for o peration.

You can connect a SuperStack Advanced Redundant Power System (part number 3C16071B) to the Switch. This unit, whic h is also known as an ARPS, is desi gn ed to mainta in the po w e r t o y o ur S w itch i f a power s u pp l y failure occurs.

For normal redundancy , the unit requires one Type 2A Power Module. For full redundancy, the unit requires two Type 2A Power Modules combined using a Type 2 Y-Cable.

Check with your supplier that you have the correct Power Modules and cables for your ARPS unit.

CAUTION:

The Switch can only use a SuperStack Advanced Redundant

Power System output.

Use the following sequence of steps to power-up the Switch.

CAUTION:

The Switch has no ON/OFF switch; the only method of connecting or disconnecting main power is by connecting or disconnecting the power cord.

Checking for Correct

Operation

Plug the power cord into the power socket at the rear of the Switch.

Plug the other end of the power cord into your power outlet

The Switch powers-up and runs through its Power On Self Test (POST), which takes approximately 12 seconds.

During the Power On Self Test, all ports on the Switch are disabled and the LEDs light in the following sequence:

■

All unit LEDs light

■

Port Status LEDs light in a rapid cycle

When the POST has completed, check the Power/Self Test LED to check that your Switch is operating correctly. Table 4

shows possible colors for

the LED.

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Choosing the Correct Cables

Table 4

Color State

Green The Switch is powered-up and

Yellow The Switch has failed its Power On Self

Off The Switch is not re ceiving power.

LED colors

opera ti ng normally

Test. Thi s o ccurs if any o f the ports fa il during power-up.

If there is evidence of a problem, see “Solving Problems Indicated by

LEDs” on page 31.

All of the ports on the front of the Switch 3300 MM are configured as MDIX (cross-over). If you want to make a connection to another MDIX port, you ne ed a

cross-over

cable. Most of the 10BASE-T and 100BASE-TX ports on 3Com devices are MDIX-only. Many ports on workstations and servers are configured as MDI (straight-through). If you want to make a connection to an MDI port, you need to use a standard

straight-through

Figure 10

Connecting other devices to the Switch 3300 MM

cable. This is illustrated in Figure 10

Page 31

Solving Problem s Indicated by LEDs 31

Solving Problems Indicated by LEDs

If the LEDs on the Switch indicat e a problem, refer to Table 5 which contains a list of problems and suggested solutions.

Table 5

Problem Suggested Solution A Power LED does not

light

On powering-up, the Power/Self Test LED lights yellow and a Unit LED lights green

A link is connected and yet the Status LED for the port does not light

Problems indicated by LEDs

Check that the power cable is firmly connected to the relevant Switch unit and to the supp ly outlet. If the connection is secure and there is still no power, you may have a faulty power cord.

The rele vant Switch unit has failed its Pow er On Self Test (POST) because of an internal problem. Contact your supplier fo r advi ce.

Check that:

All connectio ns are secure.

■

The devices at both ends of the link are pow ered-up.

■

The connection uses cross-over cable if you are

■

linking a 10BASE-T or 100BASE-T X port with a devi ce that is MDIX-only.

For information about solving problems when managing the Switch, refer to the Problem Solving chapter in the “SuperStack Switch Management Guide”.

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Managing the Switch

The Switch contains software that allows you to change and monitor the way it works. This

management software

is not required to get the Switch working, but if you do use it, you may improve the efficiency of the Switch and therefore improve the overall performance of your network. For information on managing the Switch using the management software, refer to the “SuperStack Switch Managem ent Guide”.

Page 33

AFETY INFORMATION

You must read the following safety information before carrying out any installation or removal of compone nts, or any maintenance procedures on the Switch 3300 MM .

WARNING:

personal safety. Follow all directions carefully. You must read the following safety information carefully before you install or remove the unit.

AVERTISSEMENT:

devez respecter pour garantir votre sécurité personnelle. Vous devez respecter attentivement toutes les consignes. Nous vous demandons de lire attentivement les consignes suivantes de sécurité avant d’installer ou de retirer l’appareil.

WARNHINWEIS

eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen. Sie müssen die folgenden Sicherhei tsinfo rmati onen ’ sorgfältig durchlesen , bevor Sie das Gerät installieren oder ausbauen.

Warnings contain directions that you must follow for your

Les avertissements présentent des consignes que vous

: Warnhinweise enthalten Anweisun gen, di e Sie zu Ihrer

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PPENDIX

A: S

AFETY INFORMATION

Important Safety Information

■

Installation and removal of the unit must be carried out by qualified personnel only.

■

If installing the Switch unit in a stack with SuperStack Hub units, the Switch 3300 MM unit must be installed below the Hub units.

■

The unit should never be connected to an A.C. outlet (power supply) without an earth (ground) connection.

■

The unit must be connected to an earthed (groun ded) out let to comply with European safety standards.

■

Power Cord Set: This must be approved for the country where it is used:

U.S.A. and Canada

Denmark

Switzerland

The cord set must be UL-approved and CSA certi fied.

■

The minimum sp ecification for the flexib le cord is:

■

No. 18 AWG Type SV or SJ 3-conductor

The cord set must have a ra ted current cap acity of at least

■

10A. The attachment plug must be an earth-grounding type

■

with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A, 250V) configur ation.

The supply plug must comply with section 107-2-D1,

■

standard DK2-1a or DK2-5a. The supply plug must comply with SEV/A SE 1011.

■

The appliance coupler (the connector to the unit and not the wall plug) must have a configuration for mating with an EN60320/IEC320 appliance inlet.

■

The socket outlet must be near to the unit and easily accessible. You can only remove power from the unit by disconnecting the power cord from the outlet.

■

This unit operates under SELV (Safety Extra Low Voltage) conditions according to IEC 950. The conditions are only maintained if the equipment to which it is connected also operates under SE LV conditions.

■

Switzerland only: The supply plug must comply with SEV/ASE 1011.

Page 35

Important Safety Information 35

■

France and Peru only: This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must be powered by 230V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point labelled Neutral, connected directly to earth (ground). †Impédance à la terre.

■

U.K. only: The Switc h 3300 MM is covered by Oftel General Approval, NS/G/12345/J/100003, for indirect connection to a public telecommunications system. This can only be achieved using the console po rt on the unit a nd an approved modem.

■

Sockets for Redundant Power System (RPS): Only connect an with Type 2A Power Modules and Type 2 cables to the

Power System

Advanced Redundant Power System (3C16071B)

Redundant

socket.

WARNING: RJ-45 Ports.

These are shielded RJ-45 data sockets. They cannot be used as telephone sockets. Only connect RJ-45 data connectors to these sockets.

Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sock ets.

Page 36

36 A

PPENDIX

A: S

AFETY INFORMATION

L’information de Sécurité Importante

■

L'installation et la dépose de ce groupe doivent être confiés à un personnel qualifié.

■

Si vous entassez l'unité Switch avec les unités SuperStack Hub, l'unité Switch 3300 MM doit être installée en dessous des unités Hub plus étroites.

■

L’unité ne devrait pas etre branchee a une prise de courant C.A. (source de courant) sous aucun prétexte sans un branchement mise à la terre (mise à la masse).

■

Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la masse) afin de respecter les normes européennes de sécurité.

■

Cordon électrique: Il doit être agréé dans le pays d'utilisation:

Etats-Unis et Canada

Danemark

Suisse

Le cordon doit avoir reçu l'homologation des UL et un

■

certi fi ca t d e la CS A Le cordon souple doit respecter, à titre minimum, les

■

spécifications suivantes : calibre 18 A W G

■

type SV ou 5J

■

à 3 conducteurs

■

Le cordon doit être en mesure d'ache miner un courant

■

nominal d'au moins 10 A La prise fe me lle d e branch em ent doi t êtr e du ty pe à mise à la

■

terre (mise à la masse) et respecter la configuration NEMA 5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V)

La prise mâle d'alimentation doit respecter la section 107-2

■

D1 de la norme DK2 1a ou DK2 5a La prise mâle d'al imenta tion d oit resp ecte r la norme SEV/ ASE

■

1011

■

Le coupleur d'appareil (le connecteur du groupe et non pas la prise murale) doit respecter une configuration qui permet un bran chement sur une entrée d'appareil EN60320/CEI 320.

■

La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. Vous ne pouvez mettre l ’appareil hors circuit qu'en débranchant son cordon électrique au niveau de cette prise.

Page 37

L’inform a ti o n d e Sécurité Importante 37

■

L’appareil fonctionn e à une te nsion extrêm ement basse de sécurité qui est conf orme à la no rme CEI 950 . Ces conditions n e sont maintenues que si l'équi pement auque l il est racc ordé fonctionne dans les mêmes conditions.

■

France et Pérou unique ment: Ce groupe ne peut pas être alimenté par un dispositif à im pédance à la terre. Si vos alimentations son t du type impédance à la terre, ce groupe doit être alim enté par une tension de 230 V (2 P +T) par le biais d'un transformateur d'isol ement à rapport 1:1, a vec un point secondaire de co nnexion po rtant l'appel lation Neutre et avec raccordement di rect à la te rre (m asse) .

■

Branchez un iquement u n

(3C16071B)

prise femelle du

avec Type 2A Po wer Modules et Type 2 câbles sur la

Redundant Pow er System

Advance d Redundant Power System

AVERTISSEMENT: Les ports RJ-45.

Il s'agit de prises femelles blindées de données RJ-45. Vous ne pouvez pas les utiliser comme prise de téléphone. Branchez uniquement des connecteurs de données RJ-45 sur ces prises femelles.

Les câbl es de données blindés ou non blindés, avec les jacks blindés ou non blindés, l'un ou l' aut re , pe uve nt être br anch és à ces prises de courant de données.

Page 38

38 A

PPENDIX

A: S

AFETY INFORMATION

Wichtige Sicherheitsinformat ionen

■

Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.

■

Wenn die Swi tch 3300 MM Einheit in einer Stapel mit anderen SuperStack Hub Einheiten eingebaut werden soll, muß die Switch 3300 MM Einheit unter die schmaleren Hub Einheiten e ingebaut werden.

■

Das Gerät ist unter keinen umständen an einen Wechselstrom (A.C.) Netzstecker anzuschließen ohne erdungsleitung.

■

Das Gerät muß an eine geerdete Steckdose angeschlossen werden, die die europäischen Sicherheitsnormen erfüllt.

■

Der Anschlußkabelsatz muß mit den Bestimmungen des Landes übereinstimmen, in dem er verwendet werden soll.

■

Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß eine passende Konfiguration für einen Geräteeingang gemäß EN60320/IEC320 haben.

■

Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden.

■

Der Betrieb dieses Geräts erf olgt unte r den SELV-Bedingungen (Sicherheitskleinstspannun g) gemäß IEC 950. Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät ange sch lossenen Ge räte unter SELV-Bedingungen betrieben werden.

■

Nur ein Power Modules und Type 2 kabel an den

Advanced Redundant Power System

Redundant Power System

(3C16071B) mit Type 2A

Anschluß ansc h li e ßen.

WARNHINWEIS: RJ-45 Ports. RJ-4 5-Anschlüsse.

Dies sind abgeschirmte RJ-45-Datenbuchsen. Sie können nicht als Telefonanschlußbuchsen verwendet werden. An diesen Buchsen dürfen nur RJ-45-Datenstecker angeschlossen werden.

Diese Datenstecker können entweder mit abgeschirmten oder unabgeschirmten Datenkabeln mit abgeschirmten oder unabgeschirmten Klinkensteckern verbunden werden.

Page 39

PIN-

OUTS

Null Modem Cable

PC-AT Serial Cable

9-pin to RS-232 25-pin

Switch 3300 MM Cable connector: 9-pin female

Screen TxD RxD Ground RTS CTS DSR DCD DTR

Shell 3 2 5 7 8 6 1 4

9-pin to 9-pin

Switch 3300 MM Cable connector: 9-pin female

Screen DTR TxD RxD CTS Ground DSR RTS DCD

Shell 4 3 2 8 5 6 7 1

PC/Terminal Cable connector: 25-pin male/female

1 3 2 7 4 20 5 6 8

PC-ATSerial Port Cable connector: 9-pin female

Shell

1 2 3 4 5 6 7 8

Screen RxD TxD Ground RTS DTR CTS DSR DCD

Screen DCD RxD TxD DTR Ground DSR RTS CTS

only required ifscreen

always required

required for handshake

only required ifscreen

always required

required for handshake

always required

required for handshake

Page 40

40 A

PPENDIX

B: PIN-

OUTS

Modem Cable

RJ45 Pin Assignment s

9-pin to RS-232 25-pin

Switch 3300 MM Cable connector: 9-pin female

Screen TxD RxD RTS CTS DSR Ground DCD DTR

Shell 3 2 7 8 6 5 1 4

RS-232 Modem Port Cable connector: 25-pin male

1 2 3 4 5 6 7 8 20

Screen TxD RxD RTS CTS DSR Ground DCD DTR

Pin assignments are identical for 10BASE-T and 100BASE-TX RJ45 connectors

Table 6

Pin Number Signal Function

Ports configured as MDI

1 TxData + Transmit data 2 TxData – Transmit data 3 RxData + Receive Data 4 Not assigned 5 Not assigned 6 RxData – Receiv e data 7 Not assigned 8 Not assigned

Pin assignments

Page 41

RJ45 Pin Assignments 41

Table 6

Pin Number Signal Function

Ports configured as MDIX

1 RxData + Receive Data 2 RxData – Receiv e Data 3 TxData + Transmit data 4 Not assigned 5 Not assigned 6 TxData – Transmit data 7 Not assigned 8 Not assigned

Pin assignments

Page 42

42 A

PPENDIX

B: PIN-

OUTS

Page 43

ECHNICAL

PECIFICATIONS

Physical Dimensions

Environmental Requi rements

Operating Temperature 0° to 50°C (32° to 122°F) Storage Temperature –10° to +7 0°C (14° to 158°F) Operating Humidity 10–95% relative humidity, non-condensing Standards EN60068 (IEC68) — various parts

Safety

Agency Certifications UL 1950, EN60950, CSA 22.2 No. 950, IEC 60950

EMC

Emissions EN55022 Class A, FCC Part 15 sub part B Class A, ICES-003 Class A,

Immunity EN50082-1

Heat Dissipation Power Supply

AC Line Frequency 50/60Hz Input Voltage Options 90–240 VAC Current Rating 3amps (maximum)

Height: 43.6mm x Width: 440mm x Depth: 247.5mm Weight: 5kg (11lbs)

VCCI Cl ass A, AS/NZS 3548 Class A, CNS 13438 Class A

75 watts maximum

(continued)

Page 44

44 A

PPENDIX

C: T

ECHNICAL SPECIFICATIONS

Standards Supported SNMP

SNMP protocol (RFC 1157) MIB-II (RFC 1213) Bridge MIB (RFC 1493) Repeater MIB (RFC 1516) VLAN MIB (RFC 1573) RMON MIB (RFC 1271) BOOTP (RFC 951)

Terminal Emulation Telnet (RFC 854) Protocols Used for Administration UDP (RFC 768) IP (RFC 791) ICMP (RFC 792) TCP (RFC 793) ARP (RFC 82 6) TFTP (RFC 783)

Year 2000 Compliance For information on Year 2000 Compliance and 3Com products, visit the 3Com

Year 2000 Web page:

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

Page 45

ECHNICAL

3Com provides easy access to technical support information through a variety of services. This appendix describes these services.

Information cont ained in this appendix i s co rr ect at ti me of publicat ion. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site.

UPPORT

Online Technical Services

World Wide Web Site

3Com

Knowledgebase Web

Services

3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems:

■

World Wide Web site

■

3Com Knowledgebase Web Services

■

3Com FTP site

To access the latest networking information on the 3Com Corporation World Wide Web site, enter this URL into your Internet browser:

http://www.3com.com/

This servic e pr ovides access t o onli ne suppor t i nformati on such as techni cal documentation and software, as well as support options that range from technical education to maintenance and professional services.

This interactive tool contains technical product information compiled by 3Com expert technical engineers around the globe. Located on the World Wide Web at 3Com customers and partners complementary, round-the-clock access to technical information on most 3Com products.

http://knowledgebase.3com.com

, this service gives all

Page 46

46 A

PPENDIX

D: T

ECHNICAL SUPPORT

3Com FTP Site

Support from Your Network Supplier

Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This service is available 24 hours a day, 7 days a week.

To connect to the 3Com FTP site, enter the following information into your FTP client:

■

Hostname:

■

Username:

■

Password:

ftp.3com.com anonymous

You do not need a user name and password with Web browser software such as Netscape Navigator and Internet Explorer.

If you require additional assistance, c ontact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.

When you contact your network supplier for assistance, have the following information ready:

■

Product model name, part number, and serial number

■

A list of system hardware and software, including revision levels

Support from 3Com

■

Diagnostic error messages

■

Details about recent configuration changes, if applicable

If you are unable to contact your network supplier, see the following section on how to contact 3Com.

If you are unable to obtain assistance from the 3Com online technical resources or from your network supplier, 3Com offers technical telephone support services. To find out more about your support options, call the 3Com technical telephone support phone number at the location nearest you.

When you contact 3Com for assistance, have the following information ready:

■

Product model name, part number, and serial number

■

A list of system hardware and software, including revision levels

Page 47

Support from 3Com 47

■

Diagnostic error messages

■

Details about recent configuration changes, if applicable

Here is a list of worldwide technical telephone support numbers:

Country Telephone Number Country Telephone Number Asia, Pacific Rim

Australia Hong Kong India Indonesia Japan Malaysia New Zealand Pakistan Philippines

Europe

From anywhere in Europe, call:

Europe, South Africa, and Middle East

From the following countries, you may use the toll-f reenumbers:

Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy Luxembourg

Latin America

Argentina Brazil Colombia

North America

1 800 678 515 800 933 486 +61 2 9937 5085 001 800 61 009 0531 61 6439 1800 801 777 0800 446 398 +61 2 9937 5083 1235 61 266 2602

+31 (0)30 6029900 phone +31 (0)30 60543 96 fax

0800 297468 0800 71429 800 17309 0800 113153 0800 917959 0800 1821502 06800 12813 1800 553117 1800 9453794 1678 79489 0800 3625

5411 4510 3200 0800 13 3266 571 629 4827

1 800 NET 3Com (1 800 638 3266)

Enterprise Customers: 1 800 876-3266

P.R. of China Singapore

S. Korea

From anywhere in S. Korea:

From Seoul: Taiwan, R.O. C. Thailand

Middle East Netherlands Norway Poland Portugal Russia South Africa Spain Sweden Switzerland U.K.

Mexico Puerto Rico South America

10800 61 00137 or 021 6350 1590 800 6161 463 82 2 3455 6455 00798 611 2230 00798 611 2230 0080 611 261 001 800 611 2000

1800 945 3794 0800 0227788 800 11376 00800 3111206 0800 831416 0800 995014 0800 995014 900 983125 020 795482 0800 55 3072 0800 966197

01 800 CARE (01 800 2273) 800 666 5065 1800 666 5065

Page 48

48 A

PPENDIX

D: T

ECHNICAL SUPPORT

Returning Products for Repair

Before you send a product directly to 3Com for repair, you must first obtain an authorization number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender’s expense.

To obtain an authorization number, call or fax:

Country Telephone Number Fax Number

Asia, Pacific Rim + 65 543 6500 + 65 543 6348 Brazil 5511 523 2725 Europe, South Afr ica, and Middle East + 31 30 6029900 + 31 30 6029999 Central and South Amer ica 525 201 0075 From the following countries, yo u may call the toll-free numbers; select option 2 and then option 2:

Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U.K.

U.S.A. and Canada 1 800 NET 3Com

0800 297468 0800 71429 800 17309 0800 113153 0800 917959 0800 1821502 00800 12813 1800553117 1800 9453794 1678 79489 0800 0227788 800 11376 00800 3111206 0800 831416 0800 995014 900 983125 020 795482 0800 55 3072 0800 966197

(1 800 638 3266) Enterp rise Customers:

1 800 876 3266

1 408 326 7120 (not tol l-free)

Page 49

LOSSARY

10BASE-T

100BASE-FX

100BASE-TX

1000BASE-SX

1000BASE-T

auto-negotiation

backbone

bandwidth

The IEEE specification for 10M bps Ethernet over Categor y 3, 4 or 5 twisted pair cable.

The IEEE specification for 100Mbps Fast Ethernet over fiber-optic cable. The IEEE specification for 100Mbps Fast Ethernet over Category 5

twisted-pair cable. The IEEE specification for 1000 Mbps Gigabit Ether net over fiber-optic

cable. The IEEE speci fication for 1 000Mbps Gi gabit Ether net over Cat egory 5

twisted-pair cable. A feature on twisted pair ports that allows them to advertise their

capabilities f or speed, duple x and flow control. Whe n connected to a port that also supports auto-negotiation, the link can automatically configure itself to the optimum setup.

The part of a network used as a primary path for transporting traffic between net work segments.

The information capacity, measured in bits per second, that a channel can transmit . The bandwi dth of Ether net is 10M bps, the band width of Fast Ether net is 100M bps.

baud

bridge

The signalling rate of a line, that is, the number of transitions (voltage or frequency ch anges) ma de per seco nd. Also kno wn as line speed.

A dev ice t hat in terco nnect s two LANs of a d ifferen t typ e to form a single logical n etwork that com prises of two network seg ments.

Bridges lear n which endst ations are on whic h network segm ent by examining the source addresses of packets. They then use this

Page 50

50 G

LOSSARY

information to forward pac kets based on thei r destination address. Th is process is known as filtering.

broadcast

broadc ast sto rm

collision

CSMA/CD

endstation

Ethernet

Ethernet address

A packet sent t o all devic es on a netwo rk. Multiple simultaneous broadcasts that typically absorb all the available

network ba ndwidth and c an cause a network to fail. Broadcast stor ms can be due to faulty network devices.

A term used to describe tw o colliding packets in an Etherne t network. Collisions are a par t of normal Eth ernet oper ation, but a sudden prolonged increase in the number of collisions can indicate a problem with a device, particularly if it is not accompanied by a general increase in tra ffic.

Carrier-sense Multiple Access with Collision Detection. The protocol defined in Ethernet and IEEE 802.3 standards in which devices transmit only after fi nding a data channel cl ear for a p eriod of time. When two devices transmit simultaneously, a collision occurs and the colliding devices delay t heir retransmissions f or a random len gth of time.

A computer, printer or server that is connected to a network. A LAN specification developed jointly by Xerox, Intel and Digital

Equipment C orporation. Et hernet net works use CSM A/CD to tran smit packets at a rate of 10Mbps over a variety of cables.

MAC add ress

See

Fast Ethernet

forwarding

filtering

flow control

An Ethernet system that is designed to operate at 100Mbps. The process of send ing a packet towa rd its destination using a

networking device. The process of screening a packet for certain characteristics, such as

source address, destinat ion address, or protoco l. Filtering is u sed to determine whether traffic is to be forwarded, and can also prevent unauthorized access to a ne twork or ne twork device s.

A congestion control me chanism. Con gestion is ca used by de vices sending traffic to already overloaded port on a Switch. Flow control prevents packet loss and inhibits devices from generating more traffic until the period of congest ion ends.

Page 51

full duplex

half duplex

hub

IEEE

IEEE 802 .1D

IETF

A sys tem that a llow s pac kets to b e tra nsmit ted a nd rec eived at the same time and, in effect, doub les the potent ial throughput of a link.

A system that al lows packets t o transmitted an d received, but no t at the same time. Contrast with full duplex.

A device that regenerates LAN traffic so that the transmission distance of that signal can be extended. Hubs are similar to repeaters, in that they conne ct LAN s of the same t ype; ho wever they conn ect mo re LANs than a repeater and are generally more sophisticated.

Institute of Electrical and Electronics Engineers. This American organization w as founded in 1963 and se ts standards for com puters and commun ications.

A standard that defines the behavior of bridges i n an Ethernet net work. Internet Engineering Task Force. An organizat ion responsible for

providing engine ering solutions f or TCP/IP netwo rks. In the network management area, this group is respon sible for the devel opment of the SNMP protocol .

Internet Protocol. IP is a l ayer 3 networ k protocol tha t is the standard for se ndin g data throu gh a netwo rk. I P is p art o f the TCP/ IP se t of protocols that describ e the routing of p ackets to addressed dev ices.

IPX

IP address

LAN

line speed

Internetwork Packet Exchange. IPX is a layer 3 and 4 network protocol designed for networks that use Novell Netware.

Internet Protocol address. A unique identifier for a device attached to a network using T CP/IP. The a ddress is written as f our octets separ ated with periods (f ull-stops), and is made up of a network section, an optional subne t section and a host section.

Local Area Ne twork. A net work of endst ations (such a s PCs, printer s, servers) and network devices (hubs and switches) that cover a relatively small geograph ic area (usua lly not larger th an a floor or buildi ng). LAN s are characterized by high transmission speeds over short distances (up to 1000m).

See baud.

Page 52

52 G

LOSSARY

loop

MAC

MAC ad dress

MDI

MDI-X

multicast

NIC

An event that occurs when two network devices are connected by more than one path, thereby causing packets to repeatedly cycle around the net work and not reach their destinat ion.

Media Access Control. A protocol specified by the IEEE for determining which devices have access to a network at any one time.

Media Access Cont rol address; also calle d hardware or physi cal add ress. A layer 2 ad dress associated with a par ticular networ k device. Most devices that c onnect to a LAN have a M AC address assign ed to them as they are used to identify other devices in a network. MAC addresses are 6 bytes long.

Medium De pendent Interf ace. An Ethe rnet port connection w here the transmitter of one device is connected to the receiver of another device.

Medium De pendent Interfa ce Cross-over. An Ether net port conn ection where the internal transmit and receive lines are crossed.

A packet sent t o a specific group of endstations on a network . Network Interface Card. A circuit board installed in an endstation that

allows it to be connected to a network.

POST

protocol

repeater

router

RPS

segment

Power On Self Test. An internal test that a Switch carries out when it is powered-up.

A set of rules for commun ication between devices on a network. Th e rules d icta te f ormat, timi ng, s eque ncing and error contro l.

A simp le d evice that regen erat es LA N traffi c so that the tr ansm issi on distance of that signal can be extended. Repeaters are used to connect two LANs of the same n etwork type.

A device tha t provides WAN links b etween g eographicall y separate networks.

Redundant P ower System. A device th at provides a ba ckup source of power when connected to a Switch.

A section of a LAN that is connected to the rest of the network using a switch or bridge .

Page 53

server

SLIP

SNMP

stack

STP

SuperStack

switch

Switch Da tabase

A computer in a network that is shared by multiple endstations. Servers provide endstation s with access to shared network services such as computer file s and printer que ues.

Serial Line I nternet P rotocol. A protoc ol that allow s IP to run over a serial line (con sole port) co nnection.

Simple Network Management Protocol. The current IETF standard protocol for ma naging devic es on an TC P/IP network.

A group of netw ork devices tha t are integrated t o form a single logical device.

See Sp anning Tree Protocol (STP) . In this guide, the generic term SuperStack refers to any SuperStack II

and SuperStack 3 device. S uperStac k II and SuperS tack 3 devic es can be connected together to form a SuperStack system.

A dev ice t hat in tercon nects sever al LA Ns to form a sin gle lo gica l LAN that comprises of several LAN segments. Switches are similar to bridges, in that they connect L ANs of a different type; ho wever th ey connect more LANs than a bridge and are generally more sophisticated.

A database t hat is stored by a switch to dete rmine if a pack et should be forwarded, and which port should forward the packet if it is to be forwarded.

TCP/IP

Telnet

TFTP

Transmission Control Protocol /Internet P rotocol. This is the n ame for two of the mo st well-know n protocols devel oped for the interconnection of networks. Originally a U NIX standard, TC P/IP is now supported on a lmost all plat forms, and is the p rotocol of the Inte rnet.

TCP relates to the content of the data travelling through a network — ensuring that the information sent arrives in one piece when it reaches its destination. IP relates to the address of the endstation to which data is being sent, as well as the add ress of the destin ation network.

A TCP/IP application protocol that provides a virtual terminal service, letting a user log into another computer system and access a device as if the user were connec ted directly to the devi ce.

Trivial File Transfer Protocol. Allows you to transfer files (such as software upgrad es) from a remote d evice us ing the local m anagemen t capabilities of the Switch.

Page 54

54 G

LOSSARY

unicast

WAN

A packet sent t o a single endst ation on a ne twork. Wide Area Network. A communications network that covers a wide

area. A WAN can cover a large geographic area, and may contain several LANs within it.

Page 55

NDEX

Numbers

10BASE-T/100BASE-TX ports 13 3C nu mbe r 15 3Com Knowledgebase Web Services 45 3Com URL 45

auto-negotiating ports 13

cable

choosing the correct 30 Matrix 16 maximum length 13, 21

pin-outs 39 console port 16 conventions

notice icons, About This Guide 8

text, About This Guide 8 cross-over configuration 13, 30

Ethernet address of the Switch 15

Fast Ethernet configuration rules 20 full duplex configuration rules 21

glossary 49

hardware features 12

LEDs 13 Light Emitting Diodes. See LEDs

MAC address of the Switch 15 management software 32 managing the Switch 32 Matrix Cable 16 matrix ports 16 MDI configuration 30 MDIX configuration 13, 30 MIBs 46

network configuration examples 17 network supplier support 46

online technical services 45

pin assignments

modem cable 40 null modem cable 39 RJ45 40

serial cable 39 pin-outs 39 ports

10BASE-T/100BASE-TX 13

auto-negotiating 13

console 16

matrix 16 power socket 15 powering-up a Switch 3300 MM 29 product name 15

installi ng the S witch 23

prerequisites 24

Page 56

56 I

NDEX

rack mounting a Switch 3300 MM 24 Redundant Power System. See RPS returning products for repair 48 RPS 15

connecting 29 socket 15

safety information

English 34 French 36

German 38 segment, maximum length 13, 21 serial number of the Switch 15 serial port. See console port socket

power 15

RPS 15 specifi cat ions, system 4 3 stacking a Switch 3300 MM 26 standards supported 44 straight-through configuration 30 Switch 3300 MM

10BASE-T/100BASE-TX ports 13

3C number 15

console port 16

dimensions 43

Ethernet address 15

features 12

installation 23, 24

MAC address 15

power socket 15

powering-up 29

product name 15

rack mounting 24

rear vi ew 1 5

RPS socket 15

serial number 15

size 43

stacking 26

standards supported 44

unit information label 15

weight 43 system specif icatio ns 43

technical support

3Com Knowledgebase Web Services 45 3Com URL 45 network suppliers 46

product repair 48 topology rules for Fast Ethernet 20 topology rules with full duplex 21

unit information label 15 URL 45

World Wide Web (WWW ) 45

Year 2000 compliance 44

Page 57

3Com Corporation L

This warranty applies to customers located in the United States, Australia, Canada (except Quebec), Ireland, New Zealand, U.K., and other English language countries, and countries for which a translation into the local language is not provided.

IMITED WARRANTY

UPERSTACK

HARDWARE:

SOFTWARE:

3 S

WITCH

3300 MM

3Com warrants to the end user ("Customer") that this hardware product will be free from defects in workmanship and materials, under normal use and service, for the following length of time from the date of purchase from 3Com or its authorized reseller:

Lifetime, for as long as the original Customer owns the product (not transferable to a subsequent end user) 3Com's sole obligation under this express warranty shall be, at 3Com's option and expense, to repair the

defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or if neither of the two foregoing options is reasonably available, 3Com may, in its sole discretion, refund to Customer the purchase price paid for the defective product. All products that are replaced will become the property of 3Com. Replacement products or parts may be new or reconditioned. 3Com warrants any replaced or repaired product or part for ninety (90) days from shipment, or the remainder of the initial warranty period, whichever is longer.

3Com warrants to Customer that each software program licensed from it, except as noted below, will perform in substantial conformance to its program specifications, for a period of ninety (90) days from the date of purchase from 3Com or its authorized reseller. 3Com warrants the media containing software against failure during the warranty period. No updates are provided, unless specifically included in the Included Services section. 3Com's sole obligation under this express warranty shall be, at 3Com's option and expense, to refund the purchase price paid by Customer for any defective software product, or to replace any defective media with software which substantially conforms to applicable 3Com published specifications. Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials. 3Com makes no warranty or representati on that its software products will meet Customer's requirements or work in combination with any hardware or applications software products provided by third parties, that the operation of the software products will be uninterrupted or error free, or that all defects in the software products will be corrected. For any third party products listed in the 3Com software product documentation or specifications as being compatible, 3Com will make reasonable efforts to provide compatibility, except where the non-compatibility is caused by a "bug" or defect in the third party's product or from use of the software product not in accordance with 3Com's published specifications or user manual.

THIS 3COM PRODUCT MAY INCLUDE OR BE BUNDLED WITH (1) THIRD PARTY SOFTWARE, OR (2) 3COM SOFTWARE THAT IS LICENSED "AS IS", THE USE OF WHICH IS GOVERNED BY A SEPARATE END USER LICENSE AGREEMENT. THIS 3COM WARRANTY DOES NOT APPLY TO SUCH THIRD PARTY SOFTWARE OR 3COM SOFTWARE LICENSED "AS IS". FOR THE APPLICABLE WARRANTY, PLEASE REFER TO THE END USER LICENSE AGREEMENT GOVERNING THE USE OF SUCH SOFTWARE OR THE ACCOMPA NY ING DOCUMENTATION RELATING TO SUCH SOFTWARE.

YEAR 2000 WARRANTY:

OBT AINING WARRANTY SERVICE:

In addition to the Hardware Warranty and Software Warranty stated above, 3Com warrants that each product sold or licensed to Customer on and after January 1, 1998 that is date sensitive will continue performing properly with regard to such date data on and after January 1, 2000, provided that all other products used by Customer in connection or combination with the 3Com product, including hardware, software, and firmware, accurately exchange date data with the 3Com product, with the exception of those products identified at 3Com's Web site, http://www.3com.com/products/yr2000.html, as not meeting this standard. If it appears that any product that is stated to meet this standard does not perform properly with regard to such date data on and after January 1, 2000, and Customer notifies 3Com within ninety (90) days after purchase of the product from 3Com or its authorized reseller, 3Com shall, at its option and expense, provide a software update which would effect the proper performance of such product, repair such product, deliver to Customer an equivalent product to replace such product, or if none of the foregoing is feasible, refund to Customer the purchase price paid for such product.

Any software update or replaced or repaired product will carry a Year 2000 Warranty for ninety (90) days after purchase.

Customer must contact a 3Com Corporate Service Center or an Authorized 3Com Service Center within the applicable warranty period to obtain warranty service authorization. Dated proof of purchase from 3Com or its authorized reseller may be required. Products returned to 3Com's Corporate Service Center must be pre-authorized by 3Com with a User Service Order (USO) number (or a Return Material Authorization (RMA) number or a Service Repair Order (SRO) number, whichever was issued) marked on the outside of the package, and sent prepaid and packaged appropriately for safe shipment, and it is recommended that they be insured or sent by a method that provides for tracking of the package. Responsibility for loss or damage

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does not trans fer to 3Com unti l the re tu rned it em is receiv ed by 3Com. The rep aire d or re place d ite m will be shipped to Customer, at 3Com's expense, not later than thirty (30) days after 3Com receives the defective product, and 3Com will retain risk of loss or damage until the item is delivered to Customer.

3Com shall not be responsible for any software, firmware, information, or memory data of Customer contained in, stored on, or integrated with any products returned to 3Com for repair, whether under warranty or not.

Dead- or Defective-on-Arrival

materials or workmanship within the first forty-eight (48) hours of installation but no later than thirty (30) days after the date of purchase, and this is verified by 3Com, it will be considered dead- or defective-on-arrival (DOA) and a replacement shall be provided prior to 3Com receiving the defective product, but only if Customer provides a purchase order number, credit card number, or other method of payment acceptable to 3Com, to be used if 3Com needs to charge Customer for the replacement, as explained below. The replacement product will normally be shipped not later than three (3) business days after 3Com's verification of the DOA product, but may be delayed due to export or import procedures. The shipment of a replacement product prior to 3Com receiving the defective product is subject to local legal requirements and may not be available in all locations. When such a replacement is provided and Customer fails to return the original product to 3Com within fifteen (15) days after shipment of the replacement, 3Com will charge Customer for the replacement product, at list price.

Shipment of a Replacement Prior to 3Com Receiving the Defective Product

years, after which time it may be available for a specified fee, but in either case only if Customer provides a purchase order number, credit card number, or other method of payment acceptable to 3Com, to be used if 3Com needs to charge Customer for the replacement, as explained below. 3Com will make commercially reasonable efforts to ship the replacement product not later than five (5) business days after receiving the request for a replacement, but may be delayed due to product availability or export or import procedures. The shipment of a replacement product prior to 3Com receiving the defective product is subject to local legal requirements and may not be available in all locations. When such a replacement is provided and Customer fails to return the original product to 3Com within fifteen (15) days after shipment of the replacement, 3Com will charge Customer for the replacement, at lis t price. This replacement prior to 3Com receiving the defective product is different from the fee-based Advance Hardware Replacement Service, which is available as a contracted service offering.

. In the event a product completely fails to function or exhibits a defect in

is provided for five (5)

INCLUDED SERVICES:

WARRANTIES EXCLUSIVE:

LIMIT ATION OF LIABILITY :

3Com's Electronic Support Services

on known bugs, documentation, release notes, and publicly available software and firmware upgrades. 3Com reserves the right to modify or cancel this offering at any time, without advance notice.

Telephone Te chnical Support

additional charge for 12 months from the date of purchase, on a commercially reasonable efforts basis. Telephone support is provided by 3Com only if Customer purchased this product directly from 3Com, or if Customer's reseller is unable to provide telephone support. To qualify for this telephone technical support, Customer must register on the 3Com Web site at http://support.3Com.com/index.htm, and state the date of purchase, product number, and serial number. 3Com's response to a request for telephone technical support will be in the form of a return call from a 3Com representative by close of business the following business day, defined as 9 a.m. to 5 p.m., local time, Monday through Friday, excluding local holidays. Please refer to the Technical Support appendix in the User Guide for telephone numbers.

Software Updates

through the 3Com Software Library.

IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRE SS OR IMP LIE D, EITH ER I N FAC T OR BY OPER ATI O N OF L AW, STA TU TOR Y OR OTH ER WISE , IN CLU DING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION, AND NON-INFRINGEMENT, ALL OF WHICH ARE EXPRESSLY DISCLAIMED. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS.

3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER INSTAL LATION OR TESTING, UNAUTHORIZED ATTEMPTS TO OPEN, REPAIR OR MODIFY THE PRODUCT, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD.

TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR

, All software and firmware upgrades and the latest code for this product downloaded

, available at no charge, include 3Com Knowledgebase, information

, with coverage for basic troubleshooting only, will be provided at no

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PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CO NNEC TI O N WITH TH E SA LE, IN STAL LA TI ON, MA IN TENA NC E, US E, PE RF ORM AN CE , FAIL UR E, OR INTERR UP TIO N OF I TS P ROD U CT S, EVE N I F 3C OM OR ITS AU TH ORI ZE D RE SEL L ER HA S B EE N ADVI SE D OF TH E POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.

DISCLAIMER:

GOVERNING LAW:

Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers, or the limitation of liability for personal injury, so the above limitations and exclusions may be limited in their applicati o n to you. When the imp lied warra nt ies ar e not allo wed to be exclud ed in th eir en tire ty , they wi ll be limited to the duration of the applicable written warranty. This warranty gives you specific legal rights which may vary depending on local law.

This Li mited Warranty shall be governed by the laws of the State of California, U.S.A., and by the laws of the United States, excluding their conflicts of laws principles. The United Nations Convention on Contracts for the International Sale of Goods is hereby excluded in its entirety from application to this Limited Warranty.

3Com Corporation 5400 Bayfront Plaza P.O. Box 58145 Santa Clara, CA 95052-8145 (408) 326-5000

June 23, 2000

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EGULATORY NOTICES

FCC S

TATEMENT

CSA S

TATEMENT

CE STATEMENT (EUROPE)

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference to radio communications, in which case the user will be required to correct the interference at their own expense.

Information To The User

If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

■

Reorient the receiving antenna.

■

Relocate the equipment with respect to the receiver.

■

Move the equipment away from the receiver.

■

Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits.

If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet prepared by the Federal Communications Commission helpful:

How to Identify and Resolve Radio-TV Interference Problems

This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4.

In order to meet FCC emissions limits, this equipment must be used only with cables which comply with IEEE

802.3.

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

This product complies with the European Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC as amended by European Directive 93/68/EEC.

Warning: This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

VCCI S

BSMI S

TATEMENT

3COM 16985ua-bk User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SuperStack® 3

Switch 3300 MM User Guide

Conventions

Related Documentation

Year 2000 Compliance

Documen ta ti on Comments

Product Registration

About the SuperStack 3 Switch 3300 M M

Summary of Features

Switch 3300 M M — Front View Detail

100BASE-TX Ports

LEDs

Switch 3300 M M — Rear View Detail

Unit Information Lab e l

Power Socket

Redundant Power System Socket

Console Port

Matrix Ports

Network Configuration Examples

Configuration Rules for Fast E t hernet

Configuration Rules with Full Duplex

Choosing a Suitable Site

Rack-mounting

Placing Un its On Top of Each Other

Stacki ng Un i ts

Stacking Two Units

The Pow e r-up Sequence

Choosing the Correct Cables

Solving Problems Indicated by LEDs

Managing the Switch

Important Safety Information

L’information de Sécurité Importante

Wichtige Sicherheitsinformat ionen

Null Modem Cable

PC-AT Serial Cable

Modem Cable

RJ45 Pin Assignment s

Online Technical Services

World Wide Web Site

3Com Knowledgebase Web Services

3Com FTP Site

Support from Your Network Supplier

Support from 3Com