3Com 3300 TM, 3300 XM, 3C16985B, 3C16986A, 3C16988A User guide

1697ua.bk Page 1 Monday, December 3, 2001 11:31 AM

SuperStack

®

3

Switch 3300 XM, SM, TM, MM

User Guide

3C16985B, 3C16987A, 3C16986A, 3C16988A http://www.3com.com/

Part No. DUA1698-5AAA04

Published November 2001


3Com Corporation

5400 Bayfront Plaza

Santa Clara, California

95052-8145

Copyright © 2001, 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 and SuperStack are registered trademarks of 3Com Corporation. The 3Com logo, is a trademark of

3Com Corporation.

Novell 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.


C

ONTENTS

A BOUT T HIS G UIDE

Conventions 8

Related Documentation 9

Documentation Comments 10

Product Registration 10

1 I

NTRODUCING THE

S

WITCH

3300 XM, SM, TM, MM

About the Switch 12

Summary of Features 12

Switch — Front View Detail 13

10BASE-T/

100BASE-TX Ports 14

1000BASE-SX Port (SM only) 14

1000BASE-T Port (TM only) 14

LEDs 14

Switch — Rear View Detail 16

Unit Information Label 16

Power Socket 16

Redundant Power System Socket 16

Console Port 17

Matrix Port 17

Network Configuration Examples 18

Switch as a Segmentation Switch 18

Switch as a Collapsed Backbone Switch 19

Switch as a Desktop Switch 20

Configuration Rules for Fast Ethernet 21

Configuration Rules with Full Duplex 22

Configuration Rules for Gigabit Ethernet (SM and TM) 23

Configuration Rules for the 3300 SM and TM 23


2 I

NSTALLING THE

S

WITCH

Choosing a Suitable Site 26

Rack-mounting 27

Placing Units On Top of Each Other 28

Stacking Units 29

Stacking Two Units 29

Stacking Up To Four Units 30

The Power-up Sequence 32

Connecting a Redundant Power System 32

Powering-up the Switch 32

Checking for Correct Operation 32

Choosing the Correct Cables 33

Solving Problems Indicated by LEDs 34

Managing the Switch 34

A S

AFETY

I

NFORMATION

Important Safety Information 36

L’information de Sécurité Importante 38

Wichtige Sicherheitsinformationen 40

B P IN OUTS

Null Modem Cable 43

PC-AT Serial Cable 43

Modem Cable 44

RJ45 Pin Assignments 44

C T

ECHNICAL

S

PECIFICATIONS

Switch 3300 XM, SM and MM 47

Switch 3300 TM 48

D T

ECHNICAL

S

UPPORT

Online Technical Services 51

World Wide Web Site 51

3Com Knowledgebase Web Services 51

3Com FTP Site 52


Support from Your Network Supplier 52

Support from 3Com 52

Returning Products for Repair 54

G

LOSSARY

I

NDEX

R EGULATORY N OTICES



A

BOUT

T

HIS

G

UIDE

This guide provides all the information you need to install and use a

SuperStack ® 3 Switch 3300 XM (3C16985B), 3300 SM (3C16987A),

3300 TM (3C16986A) or 3300 MM (3C16988A) unit with default settings. If 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 installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area

Networks).

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

Most user guides and release notes are available in Adobe Acrobat

Reader Portable Document Format (PDF) or HTML on the 3Com

World Wide Web site: http://www.3com.com/

All the Switches mentioned in this guide are compatible with the

Switches found within the SuperStack 1100/3300 family range.


8 A

BOUT

T

HIS

G

UIDE

Conventions

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

Table 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or instructions

Caution

Warning

Information that alerts you to potential loss of data or potential damage to an application, system, or device

Information that alerts you to potential personal injury

Table 2 Text Conventions

Convention Description

Screen displays This typeface represents information as it appears on the screen.

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

To change your password, use the following syntax:

Commands 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 port information, enter the following command: bridge port detail

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


Related

Documentation

Related Documentation 9

Table 2 Text Conventions (continued)

Convention

Words in italics

Description

Italics are used to:

■

■

■

Emphasize a point.

Denote a new term at the place where it is defined in the text.

Identify menu names, menu commands, and software button names. Examples:

From the Help menu, select Contents .

Click OK .

In addition to this guide, each Switch 3300 XM, SM, TM, MM document set includes the following:

■

■

■

■

■

■

Management Guide

This guide contains all the management information for the Switch. It is supplied on the SuperStack Switch CD-ROM.

Quick Reference Guide

This guide contains a quick summary of the hardware and software information for the Switch.

Quick Installation Guide

This guide contains a summary of the package contents, and a quick summary of the installation information for the Switch.

Release Notes

These notes provide information about the current software release, including new features, modifications, and known problems.

SuperStack Switch Help

This help provides information about the web interface software of the Switch. It is supplied on the SuperStack Switch CD-ROM.

SuperStack Switch README File

This file provides information about the current software release, including new features, modifications, and known problems. It is supplied on the SuperStack Switch CD-ROM.


10 A

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T

HIS

G

UIDE

Documentation

Comments

Product

Registration

In addition, there are other publications you may find useful:

■

Documentation accompanying the Advanced Redundant Power

System.

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: [email protected]

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 XM, SM, TM, MM User Guide

■

■

Part Number DUA1698-5AAA04

Page 21

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/registration/frontpg.pl


1 I

NTRODUCING THE

S

WITCH

3300 XM, SM, TM, MM

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

■

About the Switch

■

■

■

Switch — Front View Detail

Switch — Rear View Detail

Network Configuration Examples

■

■

■

■

Configuration Rules for Fast Ethernet

Configuration Rules with Full Duplex

Configuration Rules for Gigabit Ethernet (SM and TM)

Configuration Rules for the 3300 SM and TM


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About the Switch

The SuperStack ® 3 Switch 3300 XM, SM, TM, or MM connects:

■ your existing 10Mbps devices.

■

■ high-performance workgroups with a 100Mbps or 1000Mbps backbone or server connection.

users to dedicated 100Mbps ports in one switch.

In addition, as part of the 3Com ® SuperStack 3 range of products, you can combine it with any SuperStack II or SuperStack 3 system as your network grows.

Summary of Features The Switch has the following hardware features:

■

■

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

1000BASE-SX Gigabit Ethernet port (SM only)

■

■

1000BASE-T Gigabit Ethernet port (TM only)

One Matrix Port on the rear of the Switches 3300 SM, TM and XM for connecting units in the Switch 1100/3300 family to form a stack. This enables you to connect two units back-to-back using a single Matrix

Cable

■

■

Three Matrix Ports on the rear of the Switch 3300 MM allow you to connect a total of four units in the Switch 1100/3300 family together using 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”.


Switch — Front View Detail 13

Switch — Front

View Detail

1x

13x

6x 7x

18x 19x

Figure 1 Switch 3300 SM — front view

12x

24x

13

13

1

1

2

2

14

10BASE-T / 100BASE-TX green flashing green

= enabled, link OK

= disabled, link OK

11 3 4

3

15

4

16

5 6 7

5

17

6

18

7

19

8 9 10

8

20

9

21

10

22

11

23

14 15 16 17 18 19 20 21 22 23

12

12

24

24

1000BASE-SX

Packet

Status

Packet

Status

Unit

1 2

3

5

7

4

6

8

Power/Self Test

SuperStack3

Switch 3300 SM

1x

13x

1x

13x

10BASE-T/100BASE-TX Ports Port Status LEDs

1000BASE-SX Port

Figure 2 Switch 3300 XM — front view

6x 7x

18x 19x

12x

24x

2

10BASE-T / 100BASE-TX green = enabled, link OK flashing green = disabled, link OK

3 4 5 6 7 8 9 10 11 1

1

13

2 3

14 15

4 5

16 17

6

18

7

19

8

20

9

21

10

22

11

23

13

14 15 16 17 18 19 20 21 22 23

12

12

24

24

Packet

Status

Packet

Status

Power / Self Test LED

Unit LED

Unit

1

3

5

7

2

4

6

8

Power/Self Test

SuperStack3

Switch 3300 XM

10BASE-T / 100BASE-TX Ports Port Status LEDs Power / Self Test LED

Unit LED

6x 7x

18x 19x

Figure 3 Switch 3300 TM — front view

12x

24x

1

1

13

13

2

14

14

2

10BASE-T / 100BASE-TX green flashing green

= enabled, link OK

= disabled, link OK

3 4 5 6 7 8 9 10 11

3 4

15 16

15 16

5 6

17 18

17 18

7 8 9 10

19 20 21 22

19 20 21 22

11

23

23

12

12

24

24

1000BASE-T

Packet

Status

Packet

Status

Unit

1 2

3

5

7

4

6

8

Power/Self Test

SuperStack3

Switch 3300 TM

1x

13x

10BASE-T/100BASE-TX Ports Port Status LEDs

1000BASE-T Port

Figure 4 Switch 3300 MM — front view

6x 7x

18x 19x

12x

24x

13

13

1

1

2

2

14

10BASE-T / 100BASE-TX green = enabled, link OK flashing green = disabled, link OK

3 4

3

15

4

16

5

5

17

14 15 16 17

6 7 8 9 10

6

18

7 8

19 20

9

21

10

22

11

11

23

12

12

24

18 19 20 21 22 23 24

Matrix

Packet

Status

Packet

Status

Power / Self Test LED

Unit LED

Unit

1 2

3

5

7

4

6

8

Power/Self Test

SuperStack3

Switch 3300 MM

10BASE-T/100BASE-TX Ports Port Status LEDs Power / Self Test LED

Unit LED


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3300 XM, SM, TM, MM

10BASE-T/

100BASE-TX Ports

The Switch has 24 auto-negotiating 10BASE-T/100BASE-TX ports configured as MDIX (cross-over). These ports can be set to 10BASE-T half duplex, 10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full duplex, or they can automatically detect the speed and duplex mode of a link and provide the appropriate connection. The maximum segment length is 100m (328ft) over Category 5 twisted pair cable.

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

“Choosing the Correct Cables” on page 33 for more information.

1000BASE-SX Port

(SM only)

The Switch has a Gigabit Ethernet Port that provides a 1000Mbps connection to another Gigabit Ethernet device. This port uses 62.5

µµµµ m or

50 µµµµ m multimode fiber optic cable with MT-RJ duplex connectors.

1000BASE-T Port

(TM only)

The Switch has a Gigabit Ethernet Port that provides a 1000Mbps connection to another Gigabit Ethernet device. This port requires either a straight-through or a cross-over Category 5 cable with RJ-45 connectors at both ends.

LEDs Table 3 (overleaf) lists the LEDs visible on the front of the Switch, and their states according to color. For information on using the LEDs for problem solving, see “Solving Problems Indicated by LEDs” on page 34.


Switch — Front View Detail 15

.

Table 3 LED behavior

LED Color

Port Status LEDs

Packet Yellow

Off

Status Green

Green flashing

Off

Unit LEDs

1–8 Green

Off

Power/Self Test LED

Green

Green flashing

Yellow

Off

Indicates

Packets are being transmitted/received on the port.

No packets are being transmitted/received on the port.

A link is present, and the port is enabled.

A link is present, but the port is disabled.

No link is present.

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

The Switch is stand-alone.

The Switch is powered-up.

The Switch is either downloading software or is initializing (which includes running a Power On Self

Test).

The Switch has failed its Power On Self Test.

The Switch is not receiving power.


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3300 XM, SM, TM, MM

Switch — Rear

View Detail

Figure 5 Switch 3300 XM, SM and TM— rear view

Unit Information Label

Switch 3300 XM 24 Port

3C16985A

MAC Addr: XXXXXXXXXX

Serial XXXXXXXXXXXX

Console

(max) 19200,8,1,N

Matrix Port

Power Socket Redundant Power System Socket Console Port

Figure 6 Switch 3300 MM — rear view

Unit Information Label

Switch 3300 MM 24 Port

3C16988

MAC Addr: XXXXXXXXXX

Serial XXXXXXXXXXXX

Console

(max) 19200,8,1,N

Unit 2 Unit 3 Unit 4

Matrix Port

Power Socket Redundant Power System Socket Console Port Matrix Ports

Unit Information

Label

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.

Power Socket The Switch automatically adjusts its power setting to any supply voltage in the range 100–240V A.C. (XM, SM and MM only) or in the range

90–240V A.C. (TM only).

Redundant Power

System Socket

To protect against internal power supply failure, you can use this socket to connect a SuperStack Advanced Redundant Power System (ARPS) to the Switch. See “Connecting a Redundant Power System” on page 32.


Switch — Rear View Detail 17

Console Port 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.

Matrix Port The Matrix Port allows you to:

■

Stack the Switch 3300 SM, TM or XM with another unit in the Switch

1100/3300 family using a single Matrix Cable

■ Stack the Switch 3300 MM with up to three other units in the Switch

1100/3300 family, using up to three Matrix Cables

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

Units” on page 29.


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3300 XM, SM, TM, MM

Network

Configuration

Examples

The following illustrations show some examples of how the Switch can be used in your network.

Switch as a

Segmentation Switch

The example in Figure 7 shows how a Switch 3300 SM/XM stack can segment a network of shared 10Mbps and 100Mbps and 1000Mbps 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. The Switch 3300 SM also provides a Gigabit Ethernet connection to a local server.

Figure 7 Using the Switch to segment your network

Dual Speed Hub 500

Endstations on shared 10Mbps and 100Mbps connections

Local server on a shared

100Mbps connection

Dual Speed Hub 500


100Mbps

Local server on a shared

100Mbps connection

Switch 3300 SM/XM stack

XM

Endstations and servers on switched 10Mbps,

100Mbps and 1000Mbps connections

SM

1000Mbps


Network Configuration Examples 19

Switch as a Collapsed

Backbone Switch

The example in Figure 8 shows how a Switch 3300 TM stack can act as a backbone for both shared and switched network segments.

Figure 8 Using the Switch as a collapsed backbone


Endstations on switched 10Mbps connections

Switch 1100

Dual Speed Hub 500


Dual Speed Hub 500

Endstations on switched 10Mbps connections

Switch 1100

Endstations on switched

10Mbps connections

100Mbps

Switch 3300 TM stack

Servers on dedicated

1000Mbps connections


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3300 XM, SM, TM, MM

Switch as a Desktop

Switch

The example in Figure 9 shows how the Switch can be used for a group of users that require dedicated 10Mbps or 100Mbps connections to the desktop. The 3300 SM Switch provides a Gigabit Ethernet connection to a SuperStack II Switch 4900 in the basement and the 3300 TM Switch provides a Gigabit Ethernet connection to a local server.

Figure 9 Using the Switch in a desktop environment

Switch 3300:

SM

TM

XM

MM

Local server on a switched

1000Mbps connection

Endstations on switched 10Mbps or 100Mbps connections

1000Mbps

Switch 4900


Configuration Rules for Fast Ethernet 21

Configuration Rules for Fast Ethernet

The topology rules for 100Mbps Fast Ethernet are slightly different to those for 10Mbps Ethernet. Figure 10 illustrates the key topology rules and provides examples of how they allow for large-scale Fast Ethernet networks.

Figure 10 Fast Ethernet configuration rules


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3300 XM, SM, TM, MM

The key topology rules are:

■

Maximum UTP cable length is 100m (328ft) over Category 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 with 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 provides full duplex support for all its ports. Full duplex allows 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.


Configuration Rules for Gigabit Ethernet (SM and TM) 23

Configuration Rules for Gigabit

Ethernet (SM and

TM)

Gigabit Ethernet is designed to run over four media:

■

Single-mode fiber optic cable, with connections up to 5km.

■

Multimode fiber optic cable, with connections up to 550m.

■

■

Balanced, shielded copper cabling, with connections up to 25m.

Category 5 cabling, with connections up to 100m.

Table 4 Gigabit Ethernet cabling

Gigabit Ethernet

Transceivers

1000BASE-LX

1000BASE-SX

1000BASE-CX

1000BASE-T

Fiber Type

62.5

µ m MM

50 µ m MM

50 µ m MM

10 µ m SM

62.5

µ m MM

62.5

µ m MM

50 µ m MM

50 µ m MM

N/A

N/A

160

120

400

500

N/A

N/A

Modal

Bandwidth

(MHz/km)

500

400

500

N/A

Lengths Supported

Specified by IEEE

(meters)

2–550

2–550

2–550

2–5000

2–220

2–275

2–500

2–550

25

100

MM = Multimode SM = Single-mode

Configuration Rules for the 3300 SM and TM

The SM Switch has a Gigabit Ethernet fiber optic 1000BASE-SX port while the TM switch has a 1000BASE-T port. These ports provide a

1000Mbps full duplex connection to another Gigabit Ethernet device. Full duplex allows packets to be transmitted and received simultaneously and, in effect, doubles the potential throughput of a link.

For the SuperStack 3 Switch 3300 SM:

■

Use Multimode fiber optic cable (see Table 4 for details).

■

■

The 1000BASE-SX port is permanently fixed at 1000Mbps with full duplex.

For the Superstack 3 Switch 3300 TM:

■ the maximum UTP cable length is 100m (328ft) over Category 5 cable.

The 1000BASE-T port is permanently fixed at 1000Mbps with full duplex.


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2 I

NSTALLING THE

S

WITCH

This chapter contains the information you need to install and set up the

Switch. It covers the following topics:

■

Choosing a Suitable Site

■

■

■

Rack-mounting

Placing Units On Top of Each Other

Stacking Units

■

■

■

■

The Power-up Sequence

Choosing the Correct Cables

Solving Problems Indicated by LEDs

Managing the Switch

WARNING: Safety Information.

Before installing or removing any components from the Switch 3300 XM, SM, TM or MM or carrying out any maintenance procedures, you must read the safety information provided in Appendix A of this guide.

AVERTISSEMENT: Consignes de sécurité.

Avant d'installer ou d'enlever tout composant du Switch 3300 XM, SM, TM ou 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.

Bevor Sie Komponenten aus dem Switch 3300 XM, SM, TM oder MM entfernen oder dem Switch

Switch 3300 XM, SM, TM oder MM hinzufuegen oder

Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen, die in Appendix A (Anhang A) in diesem Handbuch aufgefuehrt sind.


26 C

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WITCH

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.

Alternatively, 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

“Configuration Rules for Fast Ethernet” on page 21.

■

■

■

■

The Switch is accessible and cables can be connected easily.

The switch is situated away from sources of conductive (electrical) dust, for example, laser printers

The AC supply used by the Switch is separate to that used by units that generate high levels of AC noise, for example air conditioning units and laser printers

Cabling is away from:

■

■

■

■

■

Sources of electrical noise such as radios, transmitters and 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.

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


Rack-mounting 27

Rack-mounting

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

CAUTION: Disconnect all cables from the Switch before continuing.

Remove all self adhesive pads from the underside of the Switch if they have been fitted.

1 Place the Switch the right way up on a hard flat surface, with the front facing towards you.

2 Locate a mounting bracket over the mounting holes on one side of the

Switch, as shown in Figure 11.

Figure 11 Fitting a bracket for rack mounting

3 Insert the two screws and tighten with a suitable screwdriver.

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

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

5 Insert the Switch into the 19-inch rack and secure with suitable screws

(not provided). Ensure that ventilation holes are not obstructed.

6 Connect network cabling.


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WITCH

Placing Units On

Top of Each Other

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 units on top of each other, ensuring that the pads of the upper unit line up with the recesses of the lower unit.


Stacking Units 29

Stacking 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 Port on the rear of the Switch SM, TM and XM allows you to connect two Switch units back-to-back. For this you need a Matrix Cable

(part number 3C16965). Contact your supplier for details.

The three Matrix Ports on the rear of the Switch MM allow you to connect a total of four units in the Switch 1100/3300 family together using Matrix Cables.

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

Only one SuperStack 3 Switch 3300 MM unit can be fitted per stack.

Stacking Two Units You can stack two Switch units with a single Matrix Cable. To do this:

1 Power-off both units.

2 Arrange the units as required. If you are using a Switch 3300 MM it must be positioned 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 28. When positioning the units, note that Matrix Cables are 1m (3.28ft) long.

3 Connect one end of the Matrix Cable to the Matrix Port of the top

Switch, and the other end to the Matrix Port of the lower Switch (See

Figure 12).

4 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 34.


30 C

HAPTER

2: I

NSTALLING THE

S

WITCH

Figure 12 A stack of two units

Stacking Up To Four

Units

You can stack up to four Switch units using one Switch 3300 MM and the appropriate number of Matrix Cables.

Only one SuperStack 3 Switch 3300 MM unit can be fitted per stack.

To stack up to four Switch units:

1 Power-off all the units.

2 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 28. When positioning the units, note that Matrix Cables are 1m (3.28ft) long.

3 Connect the Matrix Cables, as shown in Figure 13: a 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.

b Connect a second Matrix Cable to the port marked Unit 3 on the


Port on the next Switch up.

c Connect a third Matrix Cable to the port marked Unit 4 on the


Port on the Switch at the top of the stack.


Stacking Units 31

4 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 34.

Figure 13 A stack of three units

Switch 1100/3300

Switch 3300 SM

Switch 3300 MM


32 C

HAPTER

2: I

NSTALLING THE

S

WITCH

The Power-up

Sequence

The following sections describe how to get your Switch 3300 XM, SM,

TM or MM powered-up and ready for operation.

Connecting a

Redundant Power

System

You can connect a SuperStack Advanced Redundant Power System (part number 3C16071B) to the Switch. This unit, which is also known as an

ARPS, is designed to maintain the power to your Switch if a power supply 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.

Powering-up the

Switch

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.

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

2 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.

Checking for Correct

Operation

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 5 shows possible colors for the LED.


Choosing the

Correct Cables

Choosing the Correct Cables 33

Table 5 LED colors

Color

Green

Yellow

Off

State

The Switch is powered-up and operating normally

The Switch has failed its Power On Self

Test. This occurs if any of the ports fail during power-up.

The Switch is not receiving power.

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

LEDs” on page 34.

All of the ports on the front of the Switch 3300 XM, SM, TM and MM are configured as MDIX (cross-over). If you want to make a connection to another MDIX port, you need 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 cable. This is illustrated in Figure 14.

Figure 14 Connecting other devices to the Switch


34 C

HAPTER

2: I

NSTALLING THE

S

WITCH

Solving Problems

Indicated by LEDs

If the LEDs on the Switch indicate a problem, refer to Table 6 which contains a list of problems and suggested solutions.

Table 6 Problems indicated by LEDs

Problem

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

Suggested Solution

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

The relevant Switch unit has failed its Power On Self Test

(POST) because of an internal problem. Contact your supplier for advice.

Check that:

■

■

■

All connections are secure.

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

The connection uses cross-over cable if you are linking a 10BASE-T or 100BASE-TX port with a device 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”.

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 Management

Guide”.


A S

AFETY

I

NFORMATION

You must read the following safety information before carrying out any installation or removal of components, or any maintenance procedures on the Switch 3300 XM, SM, TM or MM.

WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully.

You must read the following safety information carefully before you install or remove the unit.

AVERTISSEMENT: Les avertissements présentent des consignes que vous 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 : Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen.

Sie müssen die folgenden Sicherheitsinformationen’ sorgfältig durchlesen, bevor Sie das Gerät installieren oder ausbauen.


36 A

PPENDIX

A: S

AFETY

I

NFORMATION

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 XM, SM, TM or 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 (grounded) outlet 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

■

■

The cord set must be UL-approved and CSA certified.

The minimum specification for the flexible cord is:

No. 18 AWG

Type SV or SJ

3-conductor

Denmark

Switzerland

■

■

■

■

The cord set must have a rated current capacity 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) configuration.

The supply plug must comply with section 107-2-D1, standard DK2-1a or DK2-5a.

The supply plug must comply with SEV/ASE 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 SELV conditions.

Switzerland only:

The supply plug must comply with SEV/ASE 1011.


Important Safety Information 37

■

■

■

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 Switch 3300 XM, SM, TM or 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 port on the unit and an approved modem.

Sockets for Redundant Power System (RPS):

Only connect an Advanced Redundant Power System (3C16071B) with Type 2A Power Modules and Type 2 cables to the Redundant

Power System 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 sockets.

WARNING: Fiber Optic ports - Optical Safety.

Never look at the transmit laser through a magnifying device while it is powered on. Never look directly at the fiber port and fiber cable ends when they are powered on.


38 A

PPENDIX

A: S

AFETY

I

NFORMATION

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 XM, SM, TM ou 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

■

Le cordon doit avoir reçu l'homologation des UL et un certificat de la CSA

Danemark

Suisse

■

■

■

■

■

■

■

■

Le cordon souple doit respecter, à titre minimum, les spécifications suivantes : calibre 18 AWG type SV ou 5J

à 3 conducteurs

Le cordon doit être en mesure d'acheminer un courant nominal d'au moins 10 A

La prise femelle de branchement doit être du type 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'alimentation doit respecter 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 branchement 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.


L’information de Sécurité Importante 39

■

■

■

L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme CEI 950. Ces conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions.

France et Pérou uniquement:

Ce groupe ne peut pas être alimenté par un dispositif à impédance

à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le biais d'un transformateur d'isolement à rapport 1:1, avec un point secondaire de connexion portant l'appellation Neutre et avec raccordement direct à la terre (masse).

Branchez uniquement un Advanced Redundant Power System

(3C16071B) avec Type 2A Power Modules et Type 2 câbles sur la prise femelle du 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 câbles de données blindés ou non blindés, avec les jacks blindés ou non blindés, l'un ou l'autre, peuvent être branchés à ces prises de courant de données.

AVERTISSEMENT: Ports pour fibres optiques - sécurité sur le plan optique.

Ne regardez jamais le laser d'émission en utilisant un dispositif d'agrandissement, tant qu'il est sous tension. Ne regardez jamais directement le port à fibres optiques et les embouts de câbles à fibres optiques tant qu'ils sont sous tension.


40 A

PPENDIX

A: S

AFETY

I

NFORMATION

Wichtige

Sicherheitsinformat ionen

■

■

■

■

■

■

■

■

Die Installation und der Ausbau des Geräts darf nur durch

Fachpersonal erfolgen.

Wenn die Switch 3300 XM, SM, TM oder MM Einheit in einer Stapel mit anderen SuperStack Hub Einheiten eingebaut werden soll, muß die Switch 3300 XM, SM, TM oder MM Einheit unter die schmaleren

Hub Einheiten eingebaut 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 erfolgt unter den SELV-Bedingungen

(Sicherheitskleinstspannung) gemäß IEC 950. Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.

■ Nur ein Advanced Redundant Power System (3C16071B) mit Type 2A

Power Modules und Type 2 kabel an den Redundant Power System

Anschluß anschließen.

WARNHINWEIS: RJ-45 Ports. RJ-45-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.


Wichtige Sicherheitsinformationen 41

WARNHINWEIS: Faseroptikanschlüsse - Optische Sicherheit.

Niemals mit einem Vergrößerungsgerät einen Übertragungs-Laser betrachten, während dieser eingeschaltet ist. Niemals direkt auf den Faser

Anschluß und auf die Faserkabelenden schauen, während diese eingeschaltet sind.


42 A

PPENDIX

A: S

AFETY

I

NFORMATION


B P

IN

-

OUTS

Null Modem Cable

9-pin to RS-232 25-pin


Cable connector: 9-pin female

Screen

TxD

RxD

Ground

RTS

CTS

Shell

3

2

5

7

8

DSR

DCD

DTR

6

1

4

PC/Terminal

Cable connector: 25-pin male/female

Screen only required if screen

2

7

1

3

4

20

RxD

TxD

Ground

RTS

DTR always required

5

6

8

CTS

DSR

DCD required for handshake

PC-AT Serial Cable

9-pin to 9-pin



Screen

DTR

TxD

RxD

CTS

Ground

DSR

RTS

DCD

Shell

4

3

2

8

5

6

7

1

PC-AT Serial Port

Cable connector: 9-pin female only required if screen Shell

1

2

3

4

5

Screen

DCD

RxD

TxD

DTR

Ground always required required for handshake always required

6

7

8

DSR

RTS

CTS required for handshake


44 A

PPENDIX

B: P

IN

-

OUTS

Modem Cable

RJ45 Pin

Assignments

9-pin to RS-232 25-pin



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 7 Pin assignments

5

6

7

3

4

8

1

2

Pin Number

Ports configured as MDI

Signal

TxData +

TxData –

RxData +

Not assigned

Not assigned

RxData –

Not assigned

Not assigned

Function

Transmit data

Transmit data

Receive Data

Receive data


Table 7 Pin assignments

6

7

8

3

4

5

1

2

Pin Number

Ports configured as MDIX

Signal

RxData +

RxData –

TxData +

Not assigned

Not assigned

TxData –

Not assigned

Not assigned

RJ45 Pin Assignments 45

Function

Receive Data

Receive Data

Transmit data

Transmit data


46 A

PPENDIX

B: P

IN

-

OUTS


C T

ECHNICAL

S

PECIFICATIONS

Switch 3300 XM, SM and MM

Physical Dimensions Height: 43.6mm x Width: 440mm x Depth: 247.5mm

Weight: 5kg (11lbs)

Environmental Requirements

Operating Temperature

Storage Temperature

Operating Humidity

Standards

Safety

Agency Certifications

EMC

Emissions

0° to 40°C (32° to 104°F)

–10° to +70°C (14° to 158°F)

10–95% relative humidity, non-condensing

EN60068 (IEC68) — various parts

UL 60950, EN60950, CSA 22.2 No. 60950, IEC 60950

EN55022 Class A, FCC Part 15 subpart B Class A, ICES-003 Class A,

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

EN50082-1

75 watts maximum

Immunity

Heat Dissipation

Power Supply

AC Line Frequency

Input Voltage Options

Current Rating

50/60Hz

100–240 VAC

1.5 amps (maximum)

(continued)


48 A PPENDIX C: T ECHNICAL S PECIFICATIONS

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 826)

TFTP (RFC 783)

Switch 3300 TM

Physical Dimensions Height: 43.6mm x Width: 440mm x Depth: 247.5mm

Weight: 5kg (11lbs)

Environmental Requirements

Operating Temperature

Storage Temperature

Operating Humidity

Standards

Safety

Agency Certifications

EMC

Emissions

0° to 50°C (32° to 122°F)

–10° to +70°C (14° to 158°F)

10–95% relative humidity, non-condensing

EN60068 (IEC68) — various parts

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

EN55022 Class A, FCC Part 15 subpart B Class A, ICES-003 Class A,

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

EN50082-1

75 watts maximum

Immunity

Heat Dissipation

Power Supply

AC Line Frequency

Input Voltage Options

Current Rating

50/60Hz

90–240 VAC

3 amps (maximum)

(continued)


Standards Supported

Switch 3300 TM 49

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 826)

TFTP (RFC 783)


50 A PPENDIX C: T ECHNICAL S PECIFICATIONS


D T

ECHNICAL

S

UPPORT

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

Information contained in this appendix is correct at time of publication. For the most recent information, 3Com recommends that you access the

3Com Corporation World Wide Web site.

Online Technical

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

World Wide Web 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 service provides access to online support information such as technical documentation and software, as well as support options that range from technical education to maintenance and professional services.

3Com

Knowledgebase Web

Services

The 3Com Knowledgebase is a database of technical information to help you install, upgrade, configure, or support 3Com products. The

Knowledgebase is updated daily with technical information discovered by

3Com technical support engineers. This complimentary service, which is available 24 hours a day, 7 days a week to 3Com customers and partners, is located on the 3Com Corporation World Wide Web site at: http://knowledgebase.3com.com


52 A

PPENDIX

D: T

ECHNICAL

S

UPPORT

3Com FTP Site 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: ftp.3com.com

■

■

Username: anonymous

Password:

<your Internet e-mail address>

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

Support from Your

Network Supplier

If you require additional assistance, contact 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

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.

Support from 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


Support from 3Com 53

■

■

■

A list of system hardware and software, including revision levels

Diagnostic error messages

Details about recent configuration changes, if applicable

Here is a list of worldwide technical telephone support numbers. These numbers are correct at the time of publication. Refer to the 3Com Web site for updated information.

Telephone Number Country

Asia, Pacific Rim

Australia

Hong Kong

India

Indonesia

Japan

Malaysia

New Zealand

Pakistan

Philippines

Europe, Middle East and

Africa

From anywhere in these regions, call:

Telephone Number

1 800 678 515

800 933 486

+61 2 9937 5085 or

000800 6501111

001 800 61 009

0531 616 439

1800 801 777

0800 446 398

+61 2 9937 5083

1235 61 266 2602

Country

P.R. of China

Singapore

S. Korea

Taiwan

Thailand

Europe and South Africa

From the following countries, you may use the toll-free numbers:

Austria

Belgium

Denmark

Finland

France

Germany

Hungary

Ireland

Israel

Italy

0800 297468

0800 71429

800 17309

0800 113153

0800 917959

0800 1821502

06800 12813

1800 553117

1800 9453794

800 8 79489

Luxembourg

Netherlands

Norway

Poland

Portugal

South Africa

Spain

Sweden

Switzerland

U.K.

Latin America

Brazil

Mexico

+44 (0)1442 435529 phone

+44 (0)1442 432524 fax

0800 13 3266

01 800 849CARE

Puerto Rico

Central and South America

10800 61 00137 or

021 6350 1590 or

00800 0638 3266

800 6161 463

00798 611 2230 or

02 3455 6455

00798 611 2230

0080 611 261

001 800 611 2000

0800 3625

0800 0227788

800 11376

00800 3111206

0800 831416

0800 995014

900 983125

020 795482

0800 55 3072

0800 966197

800 666 5065

AT&T +800 998 2112

North America 1 800 NET 3Com

(1 800 638 3266)

Enterprise Customers:

1 800 876-3266


54 A

PPENDIX

D: T

ECHNICAL

S

UPPORT

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

Asia, Pacific Rim + 65 543 6500

Europe, South Africa, and Middle East +44 (0)1442 435529

Fax Number

+ 65 543 6348

+ 44 (0)1442 432524

Central and South America

Argentina

Bolivia

Brazil

Caribbean

Chile

Colombia

Ecuador

Mexico

Paraguay

Peru

Uruguay

Venezuela

525 201 0075

0810 222 3266

511 241 1691

0800 133266 or

55 11 5643 2700

525 201 0004

562 240 6200

525 201 0004

525 201 0004

525 201 0004

525 201 0004

511 241 1691

525 201 0004

525 201 0004

From the following countries, you 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.

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

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

(1 800 638 3266)

Enterprise Customers:

1 800 876 3266

1 408 326 7120

(not toll-free)


G

LOSSARY

10BASE-T The IEEE specification for 10Mbps Ethernet over Category 3, 4 or 5 twisted pair cable.

100BASE-FX The IEEE specification for 100Mbps Fast Ethernet over fiber-optic cable.

100BASE-TX The IEEE specification for 100Mbps Fast Ethernet over Category 5 twisted-pair cable.

1000BASE-SX The IEEE specification for 1000Mbps Gigabit Ethernet over fiber-optic cable.

1000BASE-T The IEEE specification for 1000Mbps Gigabit Ethernet over Category 5 twisted-pair cable.

auto-negotiation A feature on twisted pair ports that allows them to advertise their capabilities for speed, duplex and flow control. When connected to a port that also supports auto-negotiation, the link can automatically configure itself to the optimum setup.

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

bandwidth The information capacity, measured in bits per second, that a channel can transmit. The bandwidth of Ethernet is 10Mbps, the bandwidth of

Fast Ethernet is 100Mbps.

baud The signalling rate of a line, that is, the number of transitions (voltage or frequency changes) made per second. Also known as line speed .

bridge A device that interconnects two LANs of a different type to form a single logical network that comprises of two network segments.

Bridges learn which endstations are on which network segment by examining the source addresses of packets. They then use this


56 G

LOSSARY information to forward packets based on their destination address. This process is known as filtering.

broadcast A packet sent to all devices on a network.

broadcast storm Multiple simultaneous broadcasts that typically absorb all the available network bandwidth and can cause a network to fail. Broadcast storms can be due to faulty network devices.

collision A term used to describe two colliding packets in an Ethernet network.

Collisions are a part of normal Ethernet operation, 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 traffic.

CSMA/CD Carrier-sense Multiple Access with Collision Detection. The protocol defined in Ethernet and IEEE 802.3 standards in which devices transmit only after finding a data channel clear for a period of time. When two devices transmit simultaneously, a collision occurs and the colliding devices delay their retransmissions for a random length of time.

endstation A computer, printer or server that is connected to a network.

Ethernet A LAN specification developed jointly by Xerox, Intel and Digital

Equipment Corporation. Ethernet networks use CSMA/CD to transmit packets at a rate of 10Mbps over a variety of cables.

Ethernet address See MAC address .

Fast Ethernet An Ethernet system that is designed to operate at 100Mbps.

forwarding The process of sending a packet toward its destination using a networking device.

filtering The process of screening a packet for certain characteristics, such as source address, destination address, or protocol. Filtering is used to determine whether traffic is to be forwarded, and can also prevent unauthorized access to a network or network devices.

flow control A congestion control mechanism. Congestion is caused by devices 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 congestion ends.


57 full duplex A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential throughput of a link.

half duplex A system that allows packets to transmitted and received, but not at the same time. Contrast with full duplex .

hub 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 connect LANs of the same type; however they connect more LANs than a repeater and are generally more sophisticated.

IEEE Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets standards for computers and communications.

IEEE 802.1D

A standard that defines the behavior of bridges in an Ethernet network.

IETF Internet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/IP networks. In the network management area, this group is responsible for the development of the

SNMP protocol.

IP Internet Protocol. IP is a layer 3 network protocol that is the standard for sending data through a network. IP is part of the TCP/IP set of protocols that describe the routing of packets to addressed devices.

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

IP address Internet Protocol address. A unique identifier for a device attached to a network using TCP/IP. The address is written as four octets separated with periods (full-stops), and is made up of a network section, an optional subnet section and a host section.

LAN Local Area Network. A network of endstations (such as PCs, printers, servers) and network devices (hubs and switches) that cover a relatively small geographic area (usually not larger than a floor or building). LANs are characterized by high transmission speeds over short distances (up to 1000m).

line speed See baud .


58 G

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

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

MAC address Media Access Control address; also called hardware or physical address.

A layer 2 address associated with a particular network device. Most devices that connect to a LAN have a MAC address assigned to them as they are used to identify other devices in a network. MAC addresses are 6 bytes long.

MDI Medium Dependent Interface. An Ethernet port connection where the transmitter of one device is connected to the receiver of another device.

MDI-X Medium Dependent Interface Cross-over. An Ethernet port connection where the internal transmit and receive lines are crossed.

multicast A packet sent to a specific group of endstations on a network.

NIC Network Interface Card. A circuit board installed in an endstation that allows it to be connected to a network.

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

protocol A set of rules for communication between devices on a network. The rules dictate format, timing, sequencing and error control.

repeater A simple device that regenerates LAN traffic so that the transmission distance of that signal can be extended. Repeaters are used to connect two LANs of the same network type.

router A device that provides WAN links between geographically separate networks.

RPS Redundant Power System. A device that provides a backup source of power when connected to a Switch.

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


59 server A computer in a network that is shared by multiple endstations. Servers provide endstations with access to shared network services such as computer files and printer queues.

SLIP Serial Line Internet Protocol. A protocol that allows IP to run over a serial line (console port) connection.

SNMP Simple Network Management Protocol. The current IETF standard protocol for managing devices on an TCP/IP network.

stack A group of network devices that are integrated to form a single logical device.

STP See Spanning Tree Protocol (STP) .

SuperStack In this guide, the generic term SuperStack refers to any SuperStack II and SuperStack 3 device. SuperStack II and SuperStack 3 devices can be connected together to form a SuperStack system.

switch A device that interconnects several LANs to form a single logical LAN that comprises of several LAN segments. Switches are similar to bridges, in that they connect LANs of a different type; however they connect more LANs than a bridge and are generally more sophisticated.

Switch Database A database that is stored by a switch to determine if a packet should be forwarded, and which port should forward the packet if it is to be forwarded.

TCP/IP Transmission Control Protocol/Internet Protocol. This is the name for two of the most well-known protocols developed for the interconnection of networks. Originally a UNIX standard, TCP/IP is now supported on almost all platforms, and is the protocol of the Internet.

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 address of the destination network.

Telnet 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 connected directly to the device.

TFTP Trivial File Transfer Protocol. Allows you to transfer files (such as software upgrades) from a remote device using the local management capabilities of the Switch.


60 G

LOSSARY unicast A packet sent to a single endstation on a network.

WAN 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.


I

NDEX

Numbers

1000BASE-SX port 14

1000BASE-T port 14

10BASE-T/100BASE-TX ports 14

3C number 16


3Com URL 51

A auto-negotiating ports 14

C cable choosing the correct 33

Matrix 17 maximum length 14, 22, 23 pin-outs 43

Choosing a Suitable Site 26

Collapsed Backbone Switch 19

Configuration Rules for the 3300 SM and TM 23 console port 17 conventions notice icons, About This Guide 8 text, About This Guide 8

Correct Operation, Checking for 32 cross-over configuration 14, 33

D

Desktop Switch 20

E

Ethernet address of the Switch 16

F

Fast Ethernet configuration rules 21 full duplex configuration rules 22

I

NDEX

61

G

Gigabit Ethernet configuration rules (SM and

TM) 23 glossary 55

H hardware features 12

I installing the Switch 25 prerequisites 26

L

LEDs 14 solving problems indicated by 34

Light Emitting Diodes.

See LEDs

M

MAC address of the Switch 16 management software 34 managing the Switch 34

Matrix Cable 17 matrix port 17

MDI configuration 33

MDIX configuration 14, 33

MIBs 52

N network configuration examples 18 network supplier support 52

O online technical services 51

P pin assignments modem cable 44 null modem cable 43

RJ45 44 serial cable 43 pin-outs 43

Ports

1000BASE-SX 14

1000BASE-T port 14

10BASE-T/100BASE-TX 14


62 I

NDEX auto-negotiating 14 console 17 matrix 17 power socket 16 powering-up a Switch 32

Powering-up the Switch 32

Power-up sequence 32 product name 16

R rack mounting a Switch 27

Redundant Power System.

See RPS returning products for repair 54

RPS 16 connecting 32 socket 16

S safety information

English 36

French 38

German 40 segment, maximum length 14, 22

Segmentation switch 18 serial number of the Switch 16 serial port.

See console port

Site

Choosing a Suitable Site 26 socket power 16

RPS 16 specifications, system 47 stacking a Switch 29

Stacking Two Units 29

Stacking Up To Four Units 30 standards supported 48

Status LEDs 14 straight-through configuration 33

Switch

10BASE-T/100BASE-TX ports 14

3C number 16 as a Collapsed Backbone Switch 19 as a Desktop Switch 20 as a Segmentation Switch 18 console port 17 dimensions 47

Ethernet address 16 features 12

Front View Detail 13 installation 25, 26

MAC address 16 power socket 16 powering-up 32 product name 16 rack mounting 27 rear view 16

RPS socket 16 serial number 16 size 47 stacking 29 standards supported 48 unit information label 16 weight 47

Switch 3300 SM

1000BASE-SX port 14

Switch 3300 SM and TM

Configuration Rules for the 3300 SM and

TM 23

Switch 3300 TM

1000BASE-T port 14

Switch SM and TM

Gigabit Ethernet configuration rules 23 system specifications 47

T

Technical specifications 47 technical support


3Com URL 51 network suppliers 52 product repair 54 topology rules for Fast Ethernet 21 topology rules with full duplex 22

U unit information label 16

URL 51

W

World Wide Web (WWW) 51


R EGULATORY N OTICES

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 TATEMENT

BSMI S TATEMENT


3Com 3300 TM, 3300 XM, 3C16985B, 3C16986A, 3C16988A User guide

SuperStack

3

Switch 3300 XM, SM, TM, MM

User Guide

ONTENTS

BOUT

HIS

UIDE

Conventions

Related

Documentation

Documentation

Comments

Product

Registration

NTRODUCING THE

WITCH

About the Switch

Switch — Front

View Detail

Switch — Rear

View Detail

Network

Configuration

Examples

Configuration Rules for Fast Ethernet

Configuration Rules with Full Duplex

Configuration Rules for Gigabit

Ethernet (SM and

TM)

Configuration Rules for the 3300 SM and TM

NSTALLING THE

WITCH

Choosing a Suitable

Site

Rack-mounting

Placing Units On

Top of Each Other

Stacking Units

The Power-up

Sequence

Choosing the

Correct Cables

Solving Problems

Indicated by LEDs

Managing the

Switch

AFETY

NFORMATION

Important Safety

Information

L’information de

Sécurité Importante

Wichtige

Sicherheitsinformat ionen

IN

OUTS

Null Modem Cable

PC-AT Serial Cable

Modem Cable

RJ45 Pin

Assignments

ECHNICAL

PECIFICATIONS

Switch 3300 XM, SM and MM

Switch 3300 TM

ECHNICAL

UPPORT

Online Technical

Services

Support from Your

Network Supplier

Support from 3Com

Returning Products for Repair

LOSSARY

NDEX

Related manuals

3com

3C16987