3com SuperStack II 3900 Getting Started Manual

®

http://www.3com.com/

SuperStack

®

II Switch 3900

Getting Started Guide

Part No. 10012706

Published August 1999

3Com Corporation

■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145

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.

3Com Corporation 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 hardcopy 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 guide.

EMISSIONS COMPLIANCE STATEMENTS FOR CLASS A PRODUCTS

United States — Federal Communications Commission Notice

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 responsible 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 instruction manual, may

cause harmful interference to radio communications. Operation of this

equipment in a residential area is likely to cause harmful interference, in

which case the user will be required to correct the interference at his or her

own expense.

Canada — Emissions Requirements

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.

Japan — VCCI Class A Compliance

This is a Class A product based on the standard of the Voluntary Control

Council for Interference by Information Technology Equipment (VCCI). If

this equipment is used in a domestic environment, radio disturbance may

arise. When such trouble occurs, the user may be required to take

corrective actions.

EMC DIRECTIVE COMPLIANCE

This equipment was tested and found to conform to the Council Directive

89/336/EEC for electromagnetic compatibility. Conformity with this

Directive is based upon compliance with the following harmonized

standards:

EN 55022 Limits and Methods of Measurement of Radio Interference

EN 50082-1 Electromagnetic Compatibility Generic Immunity Standard:

Residential, Commercial, and Light Industry

Warning:

This is a Class A product. In a domestic environment, this

product may cause radio interference, in which case you may be required

to take adequate measures.

LOW VOLTAGE DIRECTIVE COMPLIANCE

This equipment was tested and found to conform to the Council Directive

72/23/EEC for safety of electrical equipment. Conformity with this Directive

is based upon compliance with the following harmonized standard:

EN 60950 Safety of Information Technology Equipment

UK GENERAL APPROVAL STATEMENT

This equipment is manufactured to the international Safety Standard

EN60950 and is approved in the UK under the General Approval Number

NS/G/12345/J/100003 for indirect connection to the public

telecommunication network.

AUSTRALIAN EMC FRAMEWORKS COMPLIANCE

This product conforms to the EMC Frameworks and meets the Class A

limits of AS3548.

TRADEMARKS

Unless otherwise indicated, 3Com registered trademarks are registered in

the United States and may or may not be registered in other countries.

3Com, the 3Com logo, SuperStack, and Transcend are registered

trademarks of 3Com Corporation. 3Com Facts is a service mark of 3Com

Corporation.

Apple, AppleTalk, and Macintosh are trademarks of Apple Computer, Inc.

Ultrajet is a trademark of Chemtronics. HP and OpenView are registered

trademarks of Hewlett-Packard Co. IBM and NetView AIX are registered

trademarks of International Business Machines Corporation. MS-DOS and

Windows are registered trademarks of Microsoft Corporation. SunNet

Manager, SunOS, and OpenWindows are trademarks of Sun Microsystems,

Inc. Microswabs and Texwipe are registered trademarks of Texwipe.

Liqui-Tool is a trademark of Triangle Tool Group. UNIX is a registered

trademark in the United States and other countries, licensed exclusively

through X/Open Company.

All other company and product names may be trademarks of the respective

companies with which they are associated.

C

ONTENTS

A

BOUT

T

HIS

G

UIDE

Introduction 7

Finding Specific Information in This Guide 7

Conventions 8

SuperStack II Switch 3900 Documentation 9

Paper Documents 9

Documents and Help on CD-ROM 10

Related Publications 11

Documentation Comments 11

Year 2000 Compliance 11

1

S

YSTEM

AND

S

ETUP

O

VERVIEW

Switch 3900 Intelligent Switch 13

System Overview — 24-Port Front Panel 14

System Overview — 36-Port Front Panel 15

System Overview — Back Panel of Both Models 16

System Features and Benefits 17

System Management 17

Optional Gigabit Ethernet Modules 18

Network Configuration Example 18

Providing Dedicated Links for Fast Ethernet 18

Network Configuration Sample 19

2

I

NSTALLING

THE

S

YSTEM

Before You Begin 21

Installing the System on a Table Top or in a Free-Standing

Stack 22

Installing the System in a Distribution Rack 23

Preparing the System and Rack 23

Mounting the System into a Distribution Rack 25

3

C

ABLING

S

WITCH

3900 P

ORTS

Overview of Cabling 27

Fiber Safety Precautions 27

Fast Ethernet Ports 28

Cabling 10/100BASE-TX RJ-45 Ports 28

10/100BASE-TX RJ-45 Connector Pin Assignments 29

Gigabit Ethernet Ports 30

Guidelines for Gigabit Ethernet Cabling 30

Recommended Distances for 1000BASE-SX Ports or

Transce iv ers 30

Recommended Distances for

1000BASE-LX Transceivers 30

Cabling the Console Port 31

Console Port Pin Assignments 32

4

S

YSTEM

P

OWER

U

P

Power Options 33

AC Power Cord 33

Optional Advanced Redundant Power System 33

Optional Uninterruptible Power System 33

Power Up 34

To Power the Switch 3900 with the RPS 34

To Power the Switch 3900 from the Wall Receptacle 34

Power-up Diagnostics 34

System Diagnostics 35

Power LED Activity 35

Fault LED Activity 35

Ethernet Port Diagnostics 35

Packet LED Activity 35

Status LED Activity 35

System and Port Status LEDs 36

System Checks 37

Next Step: Software Configuration 37

5

Q

UICK

S

ETUP

FOR

M

ANAGEMENT

A

CCESS

About Switch 3900 System Management 39

How Do You Want to Manage the System? 39

Terminal Connection 40

Modem Connection 40

IP Management Interface 40

Initial Management Access 40

Setting the Console Port Baud 41

Configuring the IP Interface 41

6

T

ROUBLESHOOTING

THE

S

YSTEM

Getting Additional Help 43

Diagnosing Problems 43

Power Failures 43

Abnormal LED Activity 43

Cleaning Dirty Fiber Optic Ports and Connectors 46

A

S

YSTEM

S

PECIFICATIONS

B

S

ITE

R

EQUIREMENTS

AND

S

AFETY

C

ODES

General Safety Requirements 49

Wiring Closet Recommendations 49

Distribution Rack Requirements 50

Protective Grounding for the Rack 50

Space Requirements for the Rack 50

Mechanical Requirements for the Rack 51

Building and Electrical Codes 52

U.S. Building Codes 52

U.S. Electrical Codes 53

C

T

ECHNICAL

S

UPPORT

Online Technical Services 55

World Wide Web Site 55

3Com Knowledgebase Web Services 55

3Com FTP Site 56

3Com Bulletin Board Service 56

Access by Analog Modem 56

Access by Digital Modem 56

3Com Facts Automated Fax Service 56

Support from Your Network Supplier 57

Support from 3Com 57

Returning Products for Repair 59

I

NDEX

3C

OM

C

ORPORATION

L

IMITED

W

ARRANTY

A

BOUT

T

HIS

G

UIDE

Introduction

This guide provides all the information that you need

to set up your SuperStack

®

II Switch 3900 system and

get it operating in your network. This guide provides

an overview of your system and step-by-step

procedures for planning your configuration, installing

your system, cabling, powering up, configuring, and

troubleshooting. When you are ready to configure

your system, see the Command Reference Guide and

the Implementation Guide on the Documentation CD.

If the information in the Software Installation and

Release Notes that are shipped with your Switch 3900

system differs from the information in this guide,

follow the instructions in the Release Notes.

This guide is intended for the system or network

administrator who is responsible for installing and

managing network hardware. It assumes that you

have a working knowledge of local area network

(LAN) operations, but it does not assume prior

knowledge of the Switch 3900 system.

Finding Specific Information in This Guide

This table shows where to find specific information.

For information on Tur n t o

Best ways to use the Switch

3900 system

“System Features and Benefits”

on page 17

The front and back panels “System Overview — 24-Port

Front Panel” starting on page 14

Site requirements and other

issues to consider before you

install your Switch 3900 system

“General Safety Requirements” on

page 49

Installing the system on a table

or in a distribution rack

“Installing the System on a Table

Top or in a Free-Standing Stack”

starting on page 22 and

“Installing the System in a

Distribution Rack” on page 23

Cabling rules and pin

assignments:

■

Fast Ethernet ports “Fast Ethernet Ports” on page 28

■

Gigabit Ethernet ports “Gigabit Ethernet Ports” on

page 30

■

Console port “Cabling the Console Port” on

page 31 and “Console Port Pin

Assignments” on page 32

Checking system power-up

diagnostics and LEDs

“Power Up” on page 34

Deciding how to manage your

system

“How Do You Want to Manage

the System?” on page 39

Setting the Console port baud “Setting the Console Port Baud”

on page 41

8 A

BOUT

T

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G

UIDE

Conventions

Table 1 and Table 2 list conventions that are used

throughout this guide.

Configuring the IP management

interface

“Configuring the IP Interface” on

page 41

Troubleshooting hardware and

software problems

“Diagnosing Problems” on

page 43

Complying with environmental

and compliance specifications

Appendix A: System Specifications

Checking your site for

environmental and safety

considerations

Appendix B: Site Requirements

and Safety Codes

Getting help from your network

supplier or 3Com

Appendix C: Technical Support

Returning 3Com products to

3Com for Repair

“Returning Products for Repair”

on page 59

Tab l e 1

Notice Icons

Icon Typ e Description

Information

Note

Information that describes important

features or instructions

Caution Information that alerts you to potential loss

of data or damage to an application,

system, or device

Warning Information that alerts you to potential

personal injury

For information on Turn to

Ta b l e 2

Text Conventions

Convention Description

Screen

displays

This typeface represents information as it appears

on the screen.

Commands

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 update the system software, enter the

following command:

system softwareUpdate

This guide always gives the full form of a

command in uppercase and lowercase letters.

However, you can abbreviate commands by

entering the fewest letters in each command that

identify a unique command. Commands are not

case sensitive.

The words “enter”

and “type”

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.”

Keyboard key

names

If you must press two or more keys

simultaneously, the key names are linked with a

plus sign (+). Example:

Press Ctrl+Alt+Del

Words in

italics

Italics are used to:

■

Emphasize a point.

■

Denote a new term at the place where it is

defined in the text.

SuperStack II Switch 3900 Documentation 9

SuperStack II Switch 3900 Documentation

The following documents comprise the SuperStack II

Switch 3900 documentation set. Documents are

available in one of these forms:

■ Paper documents

The paper documents that are shipped with your

system and components are listed in the next

section.

■ Online documentation

The

SuperStack II Switch 3900 and 9300

Documentation CD

contains online versions of the

paper documents, the multiplatform

Command

Reference Guide

, and the

Implementation Guide

.

To order a paper copy of a document that you see

on the compact disc, or to order additional

compact discs, contact your network supplier.

■ Most user guides and release notes are available in

Adobe Acrobat Reader Portable Document Format

(PDF) or HTML on the 3Com Web site:

http://www.3com.com

Paper Documents

These documents are shipped with your system:

■

Unpacking Instructions for the SuperStack II Switch

3900 and 9300

How to unpack your system. Also, an inventory list

of items that are shipped with your system.

■

Software Installation and Release Notes for the

SuperStack II Switch 3900 and 9300

All of the new features, system issues, known

problems, and software corrections for the

software release. It also describes any changes to

the Switch 3900 system documentation.

■

Quick Installation Guide for the SuperStack II

Switch 3900 and 9300

How to perform a quick installation of your

system. For more details on installation, see

Chapter 2 of this guide.

■

SuperStack II Switch 3900 Getting Started Guide

All the procedures necessary for getting your

system up and running, including information on

installing, cabling, powering up, configuring, and

troubleshooting the system.

■

SuperStack II Switch 3900 and 9300

Administration Console Command Quick

Reference

booklet

A quick reference guide to all of the

Administration Console switching commands for

the Switch 3900. For complete descriptions, see

the

Command Reference Guide

on the

Documentation CD

.

■

Web Management User Guide for the

SuperStack II Switch 3900 and 9300

How to use the Web Management suite of

applications for the systems.

10 A

BOUT

T

HIS

G

UIDE

These documents are shipped with optional devices:

■ 1000BASE-SX/1000BASE-LX Gigabit Ethernet

Module Installation Guide

How to install the optional Gigabit Ethernet

modules.

■ SuperStack II Switch Advanced RPS User Guide

How to install the Advanced Redundant Power

System Type 2 (RPS) and how to use it to provide

redundant and resilient power supplies for the

Switch 3900.

■ SuperStack II Switch Advanced RPS ‘Y’ Cable

Type 2 User Guide

How to install the Y cable with the Advanced

Redundant Power Supply (RPS) to provide fully

redundant capabilities.

Documents and Help on CD-ROM

The compact disc that comes with your system

contains online versions of the paper guides that are

shipped with your system, as well as these new

guides:

■ Command Reference Guide

A complete multiplatform reference of all

Administration Console commands for this system

and several others.

■ SuperStack II Switch 3900 and Switch 9300

Implementation Guide

Information and examples about how to use the

features of these systems.

Related Publications 11

Related Publications

Depending on how you install and manage your

system, several related documents can provide helpful

information:

■ SNMP Network Manager documents

The Switch 3900 uses SNMP (Simple Network

Management Protocol), which can be accessed by

a remote network management application. 3Com

has network management applications for a

variety of platforms. Contact your network

supplier for current product information. Each

network management application includes a guide

that explains how to manage your system.

If you are using network management software

from another vendor, refer to the sections of the

product’s documentation that describe how to

manage SNMP devices.

■ SNMP documents

3Com recommends these books for easy-to-read

descriptions of SNMP:

■

Marshall T. Rose.

The Simple Book: An

Introduction to Networking Management

.

Englewood Cliffs, NJ: Prentice-Hall; 1996.

■

“Introduction to SNMP” Self-Study Guide.

Order from 3Com: Part Number 3CS-350A.

■ Telnet documents

To manage the Switch 3900 system over a TCP/IP

network using telnet, see the documentation that

is supplied with your telnet application.

Documentation Comments

Your suggestions are very important to us. They help

us make our documentation more useful to you.

Please send e-mail comments about this guide to:

[email protected]

Please include the following information when you

comment:

■ Document title

■ Document part number (found on the front or

back page of the document)

■ Page number (if appropriate)

Example:

SuperStack II Switch 3900 Getting Started Guide

Part Number 10012706

Page 25

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

12 About This Guide

1

S

YSTEM

AND

S

ETUP

O

VERVIEW

This chapter contains:

■ An overview of the SuperStack

®

II Switch 3900

and how it provides solutions for your network

■ A description of the major features and

components of the system

■ A network configuration example

Switch 3900 Intelligent Switch

The Switch 3900 is the ideal product for network

managers who want to migrate from existing

switched 10 Mbps networks to switched 100 Mbps

or who need to deliver faster access to servers.

The Switch 3900 provides superior workgroup and

departmental switching performance with the added

flexibility of multiple Gigabit Ethernet links and server

connections.

The SuperStack II Switch 3900 family delivers full line

rate, nonblocking switching between 10/100 Mbps

links and 1000 Mbps Gigabit Ethernet links with two

models:

■

Model Number 3C39024

— The 24-port

10/100BASE-TX switch, with up to three Gigabit

Ethernet links. See Figure 1.

■

Model Number 3C39036

— The 36-port

10/100BASE-TX switch, with up to three Gigabit

Ethernet links. See Figure 2.

Both versions of the Switch 3900 provide these

features:

■ One built-in Gigabit Ethernet multimode fiber

(MMF) link (1000BASE-SX) on the back panel

■ Expansion slots on the back panel (see Figure 3)

that can hold one or two of these optional Gigabit

Ethernet modules:

■

Model Number 3C39001

— 1000BASE-SX for

multimode fiber (MMF)

■

Model Number 3C39002

— 1000BASE-LX for

single-mode fiber (SMF) and multimode fiber

(MMF)

The cables for all Gigabit Ethernet ports use laser

transmission and have SC connectors. See “Optional

Gigabit Ethernet Modules” on page 18 for more

information.

14 C

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System Overview — 24-Port Front Panel

Figure 1

Front Panel of the 24-Port SuperStack II Switch 3900

Ethernet Ports

Provide 24 10/100BASE-TX

RJ-45 Ethernet ports

System and Port LEDs

Provide information about

the system and each port

14

15

16

17

13 18 19

20

21 22

23 24

14

15

16

17

13 18 19

20

21 22

23

10

1067

8

9

Status

1x

6x

12x

7x

13x

18x

24x

19x

green = enabled, link OK

flashing green = disabled, link OK

off = link fail

Power Fault

10/100 BASE - TX

2

31

11 12

4

5

67

8

9

2

31

11 12

4

5

24

Pckt

Stat

Pckt

Stat

Super Stack II Switch 3900

System Overview — 36-Port Front Panel 15

System Overview — 36-Port Front Panel

Figure 2

Front Panel of the 36-Port SuperStack II Switch 3900

v

Status

1x

6x

12x

7x

13x

18x

24x

19x

25x

30x

36x

31x

green = enabled, link OK

flashing green = disabled, link OK

off = link fail

Power Fault

10/100 BASE - TX

Pckt

Stat

Pckt

Stat

Pckt

Stat

2

3110

11 12

4

5

67

8

9

2

3110

11 12

4

5

67

8

9

14

15

16

17

13 18 19

20

21 22

23 24

14

15

16

17

13 18 19

20

21 22

23 24

26

27

28

29

25 30 31

32

33 34

35 36

26

27

28

29

25 30 31

32

33 34

35 36

Super Stack II Switch 3900

Ethernet Ports

Provide 36 10/100BASE-TX

RJ-45 Ethernet ports

System and Port LEDs

Provide information about

the system and each port

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System Overview — Back Panel of Both Models

Figure 3

Back Panel of the 24-Port and 36-Port SuperStack II Switch 3900

Power Receptacle

Console Port

Allows you to connect a workstation or modem to

the Switch 3900 system for management access

1000 Base SX

Pckt

Stat

Console

RPS Connector

Connects to the Optional

Redundant Power System

Optional Gigabit Ethernet Slots

Allow you to add additional

Gigabit Ethernet modules

Fixed Gigabit Ethernet Port

Provides a 1000BASE-SX link

Gigabit Ethernet Port LEDs

Provide information on the

port status and activity

System Features and Benefits 17

System Features and Benefits

The Switch 3900 is part of 3Com’s SuperStack family.

To combine technologies as your network grows,

install the Switch 3900 in a SuperStack network.

Some key features of the Switch 3900 system:

■ High-density Gigabit Ethernet and Fast Ethernet

configurations

The Switch 3900 has 24 or 36 Fast Ethernet ports

on the front panel and up to three Gigabit

Ethernet links on the back panel.

■ Autonegotiation support

The Switch 3900 supports 10BASE-T/100BASE-TX

and full-duplex and half-duplex autonegotiation

on all front panel ports.

■ Multiple-link trunking for Gigabit Ethernet and

Fast Ethernet links

You can choose the performance level of links

between switches, even scaling beyond one

Gigabit.

■ Trunking links, Spanning Tree, and Advanced

Redundant Power System (RPS) support

The Switch 3900 protects against cable and

equipment failures with Spanning Tree Protocol

and trunking links. The optional RPS protects

against power interruptions for fault-tolerant

networks.

■ Resilient Links

Resilient links protect your network against an

individual link or device failure by providing a

secondary backup link that is inactive until needed.

■ Manageability

The Switch 3900 provides full support for VLANs

and RMON Version 1, as well as a roving analysis

port through SNMP management.

System Management

Switch 3900 systems include integrated management

to provide fault tolerance and maximum network

availability. This management is accessible in these

ways:

■ Switch 3900 Administration Console

■ Standard network management applications based

on SNMP, such as 3Com’s Transcend

®

Network

Control Services, Sun’s SunNet Manager, HP

OpenView, and IBM’s NetView AIX applications

18 C

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Optional Gigabit Ethernet Modules

The Switch 3900 back panel has two expansion slots

that can hold optional Gigabit Ethernet modules.

These modules are available in the following

configurations:

■

1000BASE-SX Module

Multimode fiber with paired SC connectors.

■

1000BASE-LX Module

—

■

Single-mode fiber with paired SC connectors.

■

Multimode fiber with paired SC connectors.

For distances, see Chapter 3. For details on installing

and using the optional Gigabit Ethernet modules, see

the

1000BASE-SX/1000BASE-LX Gigabit Ethernet

Module Installation Guide

that is on the

Documentation CD

and shipped with each module.

Network Configuration Example

This section describes one way to place the

Switch 3900 in your network to alleviate traffic

congestion.

Providing Dedicated Links for Fast Ethernet

The rapid deployment of Fast Ethernet has increased

bandwidth demand many times over, not only

because it supports 100 Mbps connections on the

network but also because it places demands on the

servers to manage the traffic coming through those

connections.

Figure 4 shows how the Switch 3900 provides direct

100 Mbps links to devices on the network through its

Fast Ethernet ports and up to three dedicated Gigabit

links to your network’s servers.

In this sample configuration, the Switch 3900 can

provide up to 36 clients on your network with a

dedicated 100 Mbps link and can multiplex the client

traffic for Gigabit-speed access to the servers. (You

can use one port on the Switch 3900 for in-band

management as well as for network traffic.)

Network Configuration Sample 19

Network Configuration Sample

Figure 4

SuperStack II Switch 3900 Provides Dedicated Fast Ethernet Links

36-Port SuperStack

®

II Switch 3900

Switched Gigabit

server farm

Switched 100 Mb

desktop systems

Status

1x

6x

12x

7x

13x

18x

24x

19x

25x

30

36x

31x

green = enabled, link OK

flashing green = disabled, link OK

off = link fail

FaultPower

10/100 BASE - TX

2

3110

11 12

4

5

67

8

9

2

3110

11 12

4

5

67

8

9

14

15

16

17

13 18 19

20

21 22

23 24

14

15

16

17

13 18 19

20

21 22

23 24

26

27

28

29

25 30 31

32

33 34

35 36

26

27

28

29

25 30 31

32

33 34

35 36

Pckt

Stat

Pckt

Stat

Pckt

Stat

Super Stack II Switch 3900

20 C

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3com SuperStack II 3900 Getting Started Manual

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