3Com 3C17204, 3C172203 User Manual

SuperStack®3

Switch 4400 Getting Started Guide

3C17203 3C17204

http://www.3com.com/

Part No. DUA1720-3AAA02 Published August 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 and CoreBuilder are trademarks of 3Com Corporation.

Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

Netscape Navigator is a registered trademark of Netscape Communications.

JavaScript is a trademark of Sun Microsystems.

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

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, we are committed to:

Establishing environmental performance standards that comply with national legislation and regulations.

Conserving energy, materials and natural resources in all operations.

Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized environmental standards. Maximizing the recyclable and reusable content of all products.

Ensuring that all products can be recycled, reused and disposed of safely.

Ensuring that all products are labelled according to recognized environmental standards.

Improving our environmental record on a continual basis.

End of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic components.

Regulated Materials Statement

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

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable, managed forests; it is fully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally-friendly, and the inks are vegetable-based with a low heavy-metal content.

ONTENTS

BOUTTHISGUIDE

Conventions 8 Related Documentation 9

Accessing Online Documentation 9 Product Registration 10 Documentation Comments 10

NTRODUCING THE

UPERSTACK

About the Switch 4400 12

Summary of Hardware Features 12

Summary of Software Features 13 Switch 4400 — Front View Detail 14

10BASE-T/ 100BASE-TX Ports 15

LEDs 15 Switch 4400 — Rear View Detail 17

Power Socket 17

Redundant Power System Socket 17

Console Port 17

Expansion Module Slots 17 Default Settings 18

WITCH

4400

NSTALLING THESWITCH

Package Contents 20 Choosing a Suitable Site 20 Rack-mounting 21 Placing Units On Top of Each Other 22 Stacking Units 22 The Power-up Sequence 23

Powering-up the Switch 4400 23

Checking for Correct Operation of LEDs 23 Connecting a Redundant Power System 24 Choosing the Correct Cables 24

ETTINGUPFORMANAGEMENT

Setting Up Overview 28

IP Configuration 28

Preparing for Management 30 Initial Switch Setup 30 Manual Setup 31

Connecting to a Front Panel Port 31

Connecting to the Console Port 33 Automatic Setup 36

Using 3Com Network Supervisor 36

Connecting to the Console Port 36 Methods of Managing a Switch 39

Command Line Interface Management 39

Web Interface Management 40

SNMP Management 40 Setting Up Command Line Interface Management 41

CLI Management via the Console Port 41

CLI Management over the Network 41 Setting Up Web Interface Management 42

Pre-requisites 42

Web Management Over the Network 42 Setting Up SNMP Management 43

Pre-requisites 43 Default Users and Passwords 44

Changing Default Passwords 44

ROBLEMSOLVING

Solving Problems Indicated by LEDs 46 Solving Hardware Problems 47 Solving Communication Problems 48

AFETYINFORMATION

Important Safety Information 52 L’information de Sécurité Importante 53 Wichtige Sicherheitsinformationen 55

OUTS

PIN-

Null Modem Cable 57 PC-AT Serial Cable 57 Modem Cable 58 RJ-45 Pin Assignments 58

ECHNICALSPECIFICATIONS

Switch 4400 (24-port) 61

Switch 4400 (48-port) 63

ECHNICALSUPPORT

Online Technical Services 65

World Wide Web Site 65 3Com Knowledgebase Web Services 65

3Com FTP Site 66 Support from Your Network Supplier 66 Supportfrom3Com 66 Returning Products for Repair 68

NDEX

EGULATORYNOTICES

BOUT

HIS

UIDE

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

This guide is intended for use with both Switch 4400 models:

■

3C17203 — 24 10BASE-T/100BASE-TX ports

■

3C17204 — 48 10BASE-T/100BASE-TX ports

All procedures described in this guide apply to both models.

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 differ 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/

3 Switch 4400 in its default state.

8 ABOUT THIS GUIDE

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

Ta b l e 1

Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions

Caution Information that alerts you to potential loss of data or

potential damage to an application, system, or device

Warning Information that alerts you to potential personal injury

Ta b l e 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:

system password <password>

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

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 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

Words in italics Italics are used to:

Emphasize a point.

■

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

■

text.

Identify menu names, menu commands, and software

■

button names. Examples:

From the Help menu, select Contents.

Click OK.

Product Registration

Documentation Comments

You can register your SuperStack 3 Switch 4400 on the 3Com Web site:

http://support.3com.com/registration/frontpg.pl

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

pddtechpubs_comments@3com.com

Please include the following information when commenting:

Document title

■

Document part number (on the title page)

■

Page number (if appropriate)

■

Example: Part Number DUA 1720-3AAA0x SuperStack 3 Switch 4400 Getting Started Guide Page 21

NTRODUCING THE

UPERSTACK

This chapter contains introductory information about the Switch 4400 and how it can be used in your network. It covers summaries of hardware and software features and also the following topics:

■

About the Switch 4400

■

Switch 4400 — Front View Detail

■

Switch 4400 — Rear View Detail

■

Default Settings

WITCH

4400

12 C

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NTRODUCING THESUPERSTACK3SWITCH

4400

About the Switch 4400

Summary of

Hardware Features

The Switch 4400 is a stackable 10/100 Mbps device and provides high-performance work groups with a backbone to server connection. TheSwitch4400allowsCascade,GigabitEthernetorFastEthernetFiber connections when expansion modules are installed in the expansion slots on the rear of the unit. You can also add the Switch 4400 to any

SuperStack

system as your network grows.

Table 3 summarizes the hardware features that are supported by the Switch 4400.

Ta b l e 3

Feature Switch 4400

Addresses

Auto-negotiation

Forwarding Modes Store and Forward

Duplex Modes Half and full duplex on all front panel ports

Flow Control In full duplex operation all ports are supported

Smart Auto-sensing Supported on all ports

Traffic Prioritization Supported (IEEE 802.ID): 4 queues per port

Ethernet and Fast Ethernet Ports

RPS Support Connects to SuperStack 3 Advanced Redundant

Mounting 19-inch rack or stand-alone mounting

Hardware features

Up to 8000 supported

■

Up to 64 permanent entries

■

Supported on all ports

■

Auto MDI/MDI-X

■

Auto-negotiating 10BASE-T/100BASE-TX ports

Power System (ARPS) (3C16071B)

About the Switch 4400 13

Summary of Software

Features

Table 4 summarizes the software features that are supported by the Switch 4400.

Ta b l e 4

Feature Switch 4400

Automatic IP Configuration

Resilient Links

Aggregated Links

Broadcast Storm Control

Virtual LANs (VLANs)

Multicast Filtering

Spanning Tree Protocol (802.1D-1998)

Roving Analysis Port

Rapid Spanning Tree Protocol (802.1w)

Webcache Support

Quality of Service (QoS)

RMON

Email Notification of Events

Management

Port Security

Software features

Supported

Supported stack-wide

Supported

Support for up to 60 VLANs using the IEEE 802.1Q standard

■

128 Multicast filter groups supported

■

IGMP filtering supported

Supported

Four groups supported: Statistics, History, Alarms, Event

Supported

Web interface, command line interface, and SNMP supported

Disconnect Unauthorized Device (DUD) supported

For information about managing the software features of the Switch, refer to the “SuperStack 3 Switch Management Interface Reference Guide” on the CD-ROM that accompanies the Switch.

14 C

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NTRODUCING THESUPERSTACK3SWITCH

4400

Switch 4400 — Front View Detail

Figure 1

Figure 2

Switch 4400 (24-port) — front view

Switch 4400 (48-port) — front view

WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot be used as standard traditional telephone sockets, or to connect the unit to a traditional PBX or public telephone network. Only connect RJ-45 data connectors, network telephony systems, or network telephones to these sockets.

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

Switch 4400 — Front View Detail 15

10BASE-T/

100BASE-TX Ports

LEDs Table 5 lists LEDs visible on the front of the Switch, and how to read their

The Switch has 24 or 48 auto-negotiating 10BASE-T/100BASE-TX ports configured as Auto MDIX (cross-over). These ports automatically provide the appropriate connection. Alternatively, you can manually set these ports to 10BASE-T half duplex, 10BASE-T full duplex, 100BASE-TX half duplex or 100BASE-TX full duplex. The maximum segment length is 100 m (328 ft) over Category 5 twisted pair cable.

status according to color. For information on using the LEDs for problem solving, see “Solving Problems Indicated by LEDs” on page 46.

Ta b l e 5

LED Color Indicates

Port Status LEDs

Packet Green Full duplex packets are being transmitted/received on the

Status Green A high speed (100 Mbps) link is present, and the port is

Module Packet LEDs

Module Status LEDs

(continued)

LED behavior

port.

Yellow Half duplex packets are being transmitted/received on the

port.

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

enabled.

Green flashing A high speed (100 Mbps) link is present, but the port is

disabled.

Yellow A low speed (10 Mbps) link is present, and the port is

enabled.

Yellow flashing A low speed (10 Mbps) link is present, but the port is

disabled.

Off No link is present.

Green Full duplex activity being received or transmitted

Yellow Half duplex activity being received or transmitted

Off No activity

Green The Module is installed and supported. The Link Status has

been determined, and the port is enabled.

Green flashing The Module is installed and supported. The Link Status has

been determined, but the port is disabled.

16 C

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NTRODUCING THESUPERSTACK3SWITCH

LED Color Indicates

Yellow The Module is installed and supported. The Link status has

Yellow flashing A Module is installed, however, it is not supported.

Off The Module is not installed.

Unit LEDs

1–8 Green When the Switch forms a stack with other Switch 4400

Green rotating When a software upgrade is in progress, the Unit LEDs of the

Green flashing The Switch physically forms a stack with other Switch 4400

Off A fault has occurred.

Power/Self Test LED

Green The Switch is powered-up and operating normally.

Green flashing The Switch is either downloading software or is initializing

Yellow The Switch has failed its Power On Self Test.

Off The Switch is not receiving power or there is a fault with the

4400

not been determined or there is no Link for a single port Module.

units, the LED indicates the position of the unit in the stack and that a link is present.

When the Switch is stand-alone and not part of a stack, LED 1ison.

unit that is being upgraded flash on and off in the following sequence —

1,2,4,6,8,7,5,3 (24-port)

1,2,3,4,8,7,6,5 (48-port)

units, but cannot be managed as part of that stack until all units have been upgraded to software version 2.0 or later.

(which includes running a Power On Self Test).

Power Supply Unit.

Switch 4400 — Rear View Detail 17

Switch 4400 — Rear View Detail

Power Socket The Switch automatically adjusts its power setting to any supply voltage

Redundant Power

System Socket

Console Port The console port allows you to connect a terminal and perform remote or

Figure 3

Switch 4400 — rear view

in the range 90-260 VAC.

To protect against internal power supply failure, you can use this socket to connect a Switch 4400 to a SuperStack 3 Advanced Redundant Power System (RPS). See “Connecting a Redundant Power System” on page 24.

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

Expansion Module

Slots

You can use these slots to install Expansion Modules. These allow the Switch to support various forms of connection and add extra functionality to your Switch. Contact your supplier for more information.

WARNING: When an Expansion Module is not installed, ensure the blanking plate is fitted by tightening all screws with a suitable tool.

18 C

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NTRODUCING THESUPERSTACK3SWITCH

4400

Default Settings Table 6 shows the default settings for the Switch 4400:

Ta b l e 6

Feature Switch 4400

Automatic IP Configuration Enabled

Port Status Enabled

Port Speed 10/100 Mbps ports are auto-negotiated

Duplex Mode All fixed 10BASE-T and 100BASE-TX ports are

Flow Control

Broadcast Storm Control Enabled

Virtual LANs (VLANs) All ports belong to the untagged Default VLAN

IP Multicast Filtering Filtering enabled

Rapid Spanning Tree Protocol Enabled

RMON Alarm Enabled

Smart Auto-Sensing Enabled

Webcache Support Disabled

Quality of Service (QoS) All ports prioritize NBX VoIP traffic (LAN and IP).

Default Settings

auto-negotiated

Enabled in half duplex

■

Auto-negotiated in full duplex

■

(VLAN 1) with 802.1Q learning operational

Fast Start:

Enabled on front panel ports

■

Disabled on rear panel port

■

All ports set to “best effort” for all other traffic.

If you initialize a Switch unit by selecting System > Control > Initialize in the Web interface or by entering system control initialize

in the Command Line Interface, the following settings are retained to allow you to connect to and manage the Switch:

IP Address

■

Subnet Mask

■

Default Router

■

NSTALLING THESWITCH

This chapter contains the information you need to install and set up the Switch 4400. It covers the following topics:

■

Package Contents

■

Choosing a Suitable Site

■

Rack-mounting

■

Placing Units On Top of Each Other

■

The Power-up Sequence

WARNING: Safety Information. Before installing or removing any components from the Switch 4400 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 4400 ou d'entamer une procédure de maintenance, lisez les informations relatives à la sécurité qui se trouvent dans l'Appendice A de ce guide.

VORSICHT: Sicherheitsinformationen. Bevor Sie Komponenten aus dem Switch 4400 entfernen oder dem Switch 4400 hinzufuegen oder Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen, die in Appendix A (Anhang A) in diesem Handbuch aufgefuehrt sind.

20 CHAPTER 2: INSTALLING THE SWITCH

Package Contents

Choosing a Suitable Site

Switch 4400 (24-port) (3C17203) or Switch 4400 (48-port) (3C17204)

■

CD-ROM

■

Getting Started Guide (this guide)

■

Implementation Guide

■

Management Quick Reference Guide

■

Release Notes

■

Unit Information Labels

■

Warranty Information

■

Power Cord

■

2 x Mounting brackets

■

4xScrews

■

4 x Rubber feet

■

The Switch is suited for use on a desktop, either free standing or mounted in a standard 19-inch equipment rack. Alternatively, the Switch can be mounted in a wiring closet or equipment room, as an aggregator for other Hubs and Switches. A rack-mounting kit containing two mounting brackets is supplied with the Switch.

CAUTION: Ensure that the ventilation holes are not obstructed.

When deciding where to position the Switch, ensure that:

Cabling is located away from:

■

sources of electrical noise such as radios, transmitters and

■

broadband amplifiers.

power lines and fluorescent lighting fixtures

■

The Switch is accessible and cables can be connected easily.

■

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. 3Com recommends that you provide a minimum of 25mm (1in.) clearance.

Air flow around the Switch does not exceed 40°C(104°F).

■

Rack-mounting 21

If the Switch is installed in a 19-inch rack or closed assembly its local air temperature may be greater than room ambient temperature.

■

The air is as free from dust as possible.

■

The unit is installed in a clean, air conditioned environment.

■

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

Rack-mounting

The Switch 4400 is 1U high and will fit 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.

To rack-mount your Switch:

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 3.

Figure 4

Fitting a bracket for rack-mounting

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

22 CHAPTER 2: INSTALLING THE SWITCH

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.

7 Finally place a unit information label on the unit in an easily accessible

position. The unit information label shows the following:

■

You may need this information for fault reporting purposes.

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

Placing Units On TopofEachOther

If the Switch units are free-standing, up to eight units can be placed one

on top of the other. If you are mixing a variety of SuperStack

3Switch

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 Switch 4400 units can be stacked together and then treated as a single

manageable unit with one IP address. Any combination of 24-port and 48-port units is allowed in a single stack, as long as the total number of front panel ports does not exceed the limit of 192 ports. The following combinations are allowed:

4 x 48-port Switches

■

3 x 48-port Switches and 2 x 24-port Switches

■

2 x 48-port Switches and 4 x 24-port Switches

■

1 x 48-port Switch and 6 x 24-port Switches

■

8 x 24-port Switches

■

The Power-up Sequence 23

Using the Expansion Module slot at the rear of the Switch, you can stack Switch units together in two ways:

■

The SuperStack 3 Switch Cascade Stacking Kit (3C17227) consists of two Cascade Modules and a Cascade Cable. This kit allows you to connect two Switch 4400 units together.

■

The SuperStack 3 Cascade Extender Kit (3C17228) consists of one Cascade Module, one Cascade Cable and one Cascade Extender Unit. This kit allows you to connect any of the combinations of Switch 4400 units shown in “Stacking Units” on page 22. Each Cascade Extender Kit enables you to add one additional Switch to your stack.

For more information contact your supplier, and refer to the user documentation that accompanies these Cascade Kits.

When the Switch 4400s are stacked together they are assigned a unit number from bottom-to-top for management purposes. When further switches are added to the stack, they can be positioned at the bottom of the stack or at the top. Either way, the Switch management software will re-order the Switch unit numbers into a logical order again (from bottom to top).

The Power-up Sequence

Powering-up the

Switch 4400

Checking for Correct

Operation of LEDs

The following sections describe how to get your Switch 4400 powered-up and ready for operation.

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

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 10 seconds.

During the Power On Self Test, all ports on the Switch are disabled and the LEDs light in a set sequence.

WhenthePOSThascompleted,checkthePower/SelfTestLEDtomake sure that your Switch is operating correctly. Table 7 shows possible colors for the LED.

+ 51 hidden pages

3Com 3C17204, 3C172203 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

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

Related Documentation

Product Registration

Documentation Comments

About the Switch 4400

Switch 4400 — Front View Detail

100BASE-TX Ports

LEDs Table 5 lists LEDs visible on the front of the Switch, and how to read their

Switch 4400 — Rear View Detail

Power Socket The Switch automatically adjusts its power setting to any supply voltage

Console Port The console port allows you to connect a terminal and perform remote or

Default Settings

Package Contents

Choosing a Suitable Site

Rack-mounting

Placing Units On TopofEachOther

Stacking Units Switch 4400 units can be stacked together and then treated as a single

The Power-up Sequence