3COM C17302, C17304, 3C17300 User Manual

0 (0)

SuperStack® 3

Switch 4200 Series

Getting Started Guide

3C17300

3C17302

3C17304

http://www.3com.com/

Part No. DUA1730-0AAA02

Published October 2002

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

Copyright © 2002, 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, the 3Com logo and SuperStack are all registered trademarks 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.

CONTENTS

ABOUT THIS GUIDE

Conventions 8

Related Documentation 9

Accessing Online Documentation 10

Product Registration 10

Documentation Comments 10

1INTRODUCING THE

SUPERSTACK 3 SWITCH 4200 SERIES

 

About the Switch 4200 Series

12

 

 

 

Summary of Hardware Features

12

 

 

Switch 4200 Series — Front View Detail

13

 

10BASE-T/ 100BASE-TX Ports 14

 

 

10/100/1000BASE-T Ports

14

 

 

 

GBIC Ports

14

 

 

 

 

 

LEDs 15

 

 

 

 

 

 

Switch 4200 Series — Rear View Detail

17

 

Power Socket

17

 

 

 

 

 

Redundant Power System Socket

17

 

 

Console Port

17

 

 

 

 

 

Default Settings

18

 

 

 

 

 

 

 

 

 

2 INSTALLING THE SWITCH

 

 

 

 

Package Contents 20

 

 

 

 

 

Choosing a Suitable Site

20

 

 

 

 

Rack-mounting

21

 

 

 

 

 

Placing Units On Top of Each Other

23

 

 

Stacking Units

23

 

 

 

 

 

The Power-up Sequence

24

 

 

 

 

Powering-up the Switch 4200 Series

24

 

Checking for Correct Operation of LEDs

24

 

 

Connecting a Redundant Power System

25

 

 

Choosing the Correct Cables

25

 

 

 

 

 

Choosing the correct Fiber cables

26

 

 

 

GBIC Operation

27

 

 

 

 

 

 

 

 

Approved GBIC Transceivers

27

 

 

 

 

 

Inserting a GBIC Transceiver

27

 

 

 

 

 

 

 

 

 

3 SETTING UP FOR MANAGEMENT

 

 

 

 

Setting Up Overview

32

 

 

 

 

 

 

 

IP Configuration 33

 

 

 

 

 

 

 

Preparing for Management

 

34

 

 

 

 

 

Manually Configuring IP Information

35

 

 

 

Connecting to a Front Panel Port

35

 

 

 

Connecting to the Console Port

38

 

 

 

 

Viewing Automatically Configured IP Information

42

 

Using 3Com Network Supervisor

42

 

 

 

 

Connecting to the Console Port

42

 

 

 

 

Methods of Managing a Switch

45

 

 

 

 

 

Command Line Interface Management

 

45

 

 

Web Interface Management

46

 

 

 

 

 

SNMP Management

46

 

 

 

 

 

 

 

Setting Up Command Line Interface Management

47

 

CLI Management via the Console Port

 

47

 

 

CLI Management over the Network

47

 

 

Setting Up Web Interface Management

48

 

 

Pre-requisites

48

 

 

 

 

 

 

 

 

Web Management Over the Network

 

49

 

 

Setting Up SNMP Management

49

 

 

 

 

 

Pre-requisites

50

 

 

 

 

 

 

 

 

Default Users and Passwords

50

 

 

 

 

 

Changing Default Passwords

50

 

 

 

 

 

 

 

 

 

 

 

 

 

4 PROBLEM SOLVING

 

 

 

 

 

 

 

 

Solving Problems Indicated by LEDs

54

 

 

 

 

Solving Hardware Problems

55

 

 

 

 

 

 

Solving Communication Problems

55

 

 

 

 

Solving Stack Formation Problems

56

 

Solving Software Upgrade Problems

57

A

 

 

 

SAFETY INFORMATION

 

 

 

Important Safety Information

60

 

 

L’information de Sécurité Importante

62

 

Wichtige Sicherheitsinformationen

64

B

 

 

 

 

 

 

PIN-OUTS

 

 

 

 

 

 

Null Modem Cable

67

 

 

 

 

PC-AT Serial Cable

67

 

 

 

 

Modem Cable 68

 

 

 

 

 

RJ-45 Pin Assignments

68

 

 

 

1000BASE-T RJ-45 Pin Assignments

69

C

 

 

TECHNICAL SPECIFICATIONS

 

 

Switch 4226T

 

 

 

 

 

 

(3C17300)

71

 

 

 

 

 

Switch 4250T

 

 

 

 

 

 

(3C17302)

73

 

 

 

 

 

Switch 4228G

 

 

 

 

 

(3C17304)

74

 

 

 

 

D

 

 

 

 

TECHNICAL SUPPORT

 

 

 

 

Online Technical Services

75

 

 

 

World Wide Web Site

75

 

 

 

3Com Knowledgebase Web Services 76

 

3Com FTP Site

76

 

 

 

 

Support from Your Network Supplier

76

 

Support from 3Com

77

 

 

 

Internet Support

77

 

 

 

Telephone Support

77

 

 

 

Returning Products for Repair

79

 

INDEX

REGULATORY NOTICES

ABOUT THIS GUIDE

This guide provides all the information you need to install and use a SuperStack® 3 Switch 4200 in its default state.

This guide is intended for use with all Switch 4200 Series models:

Switch 4226T (3C17300) — 24 10BASE-T/100BASE-TX ports, 2 10/100/1000BASE-T ports

Switch 4250T (3C17302) — 48 10BASE-T/100BASE-TX ports, 2 10/100/1000BASE-T ports

Switch 4228G (3C17304) — 24 10BASE-T/100BASE-TX ports, 2 10/100/1000BASE-T ports and 2 GBIC ports

All procedures described in this guide apply to all models except where stated.

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/

8 ABOUT THIS GUIDE

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

 

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

 

 

 

 

 

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:

 

 

 

 

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”

When you see the word “enter” in this guide, you must type

 

 

and “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.

Related Documentation

9

Related

In addition to this guide, each Switch documentation set includes the

Documentation

following:

 

SuperStack 3 Switch Implementation Guide

 

This guide contains information on the features supported by your

 

Switch and how they can be used to optimize your network. It is

 

supplied in PDF format on the CD-ROM that accompanies the Switch.

 

SuperStack 3 Switch Management Quick Reference Guide

 

This guide contains:

 

a list of the software features supported by the Switch.

 

a summary of the web interface and command line interface

 

commands for the Switch.

 

SuperStack 3 Switch Management Interface Reference Guide

 

This guide provides detailed information about the web interface and

 

command line interface that enable you to manage the Switch. It is

 

supplied in HTML format on the CD-ROM that accompanies the

 

Switch.

 

Release Notes

 

These notes provide information about the current software release,

 

including new features, modifications, and known problems.

 

There are other publications you may find useful, such as:

 

Documentation accompanying the Advanced Redundant Power

 

system.

 

Documentation accompanying 3Com Network Supervisor. This is

 

supplied on the CD-ROM that accompanies the Switch.

10 ABOUT THIS GUIDE

Accessing Online The CD-ROM supplied with your Switch contains the following online Documentation documentation:

SuperStack 3 Switch Implementation Guide (PDF format)

SuperStack 3 Switch Management Interface Reference Guide (HTML format)

1To access the documentation insert the CD-ROM into your CD-ROM drive. If your PC has auto-run enabled, a splash screen will be displayed automatically.

2Select the Documentation section from the contents page.

If the online documentation is to be accessed from a local drive or server, you will need to access the CD-ROM contents via the root directory and copy the files from the CD-ROM to a suitable directory.

The HTML Reference Guide is stored in the Docs/reference directory on the CD-ROM. The documentation is accessed using the contents.htm file.

The PDF Implementation Guide is stored in the Docs/implementation directory of the CD-ROM.

 

3Com recommends that you copy the Docs/reference directory as a

 

whole to maintain the structure of the files.

 

 

Product

You can register your SuperStack 3 Switch 4200 on the 3Com Web site:

Registration

http://3com.com/register

 

 

Documentation

Your suggestions are very important to us. They will help make our

Comments

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 1730-0AAA0x

 

SuperStack 3 Switch 4200 Series Getting Started Guide

 

Page 21

1

INTRODUCING THE

SUPERSTACK 3 SWITCH 4200

SERIES

This chapter contains introductory information about the Switch 4200 Series 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 4200 Series

Switch 4200 Series — Front View Detail

Switch 4200 Series — Rear View Detail

Default Settings

12 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES

About the Switch

The Switch 4200 Series are stackable 10/100/1000 Mbps devices which

4200 Series

consists of:

 

24 or 48 10BASE-T/100BASE-TX ports

 

2

10/100/1000BASE-T ports

 

2

GBIC ports (Switch 4228G only)

The Switch provides high-performance workgroups with a backbone to server connection. You can also add the Switch 4200 Series to any SuperStack® system as your network grows.

Summary of Table 3 summarizes the hardware features that are supported by the Hardware Features Switch 4200 Series.

Table 3 Hardware features

Feature

Switch 4200 Series

 

 

Addresses

Up to 8000 supported

 

Up to 64 permanent entries

Auto-negotiation

Supported on all ports

 

Auto MDI/MDI-X

Forwarding Modes

Store and Forward

Duplex Modes

Half and full duplex on all 10/100 ports. Full duplex

 

on 1000BASE-T ports and full duplex on GBIC ports

Flow Control

In full duplex operation all ports are supported

Smart Auto-sensing

Supported on all ports except GBIC ports which are

 

single speed ports.

 

Smart auto-sensing allows auto-negotiating ports to

 

monitor and detect a high error rate on a link, or a

 

problem in the "physical" interconnection to

 

another port and react accordingly.

Traffic Prioritization

Supported (IEEE 802.ID): 2 queues per port

Ethernet and Fast Ethernet

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

Ports

 

Gigabit Ethernet

Auto-negotiating 10/100/1000BASE-T ports

GBIC

Auto-negotiating GBIC ports (Switch 4228G only)

RPS Support

Connects to SuperStack Advanced Redundant

 

Power System (ARPS) (3C16071, 3C16071A or

 

3C16071B)

Mounting

19-inch rack or stand-alone mounting

 

 

3COM C17302, C17304, 3C17300 User Manual

About the Switch 4200 Series 13

Switch 4200 Series

 

Figure 1 Switch 4226T (3C17300) — front view

— Front View

 

 

 

 

 

 

 

 

 

 

Detail

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10BASE-T / 100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

RJ-45 Ports

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit LEDs

Power / Self Test LED

 

 

 

 

 

 

 

 

 

 

 

 

 

1

13

2

14

3 15

4 16

5 17

6 18

7 19

8 20

9

21

10 22

11 23

12 24

3C17300 Superstack 3 Switch 4226T

Power/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Self Test

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

25 / Up 26 / Down

2

 

3

Alert

4

Unit

Alert LED

10/100/1000BASE-T ports

Figure 2 Switch 4250T (3C17302) — front view

10BASE-T / 100BASE-TX

RJ-45 Ports

Unit LEDs

Power / Self Test LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3C17302 Superstack 3 Switch 4250T

 

 

 

1

25

2

26

3

27

4

28

5

29

6

30

7

31

8

32

9

33

10

34

11

35

12

36

13

37

14

38

15

39

16

40

17

41

18

42

19

43

20

44

21 45

22 46

23 47

24

48

Power/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Self Test

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

Down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Alert

Up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 Unit

49

 

 

 

 

 

50

Alert LED

10/100/1000BASE-T ports

Figure 3 Switch 4228G (3C17304) — front view

10BASE-T / 100BASE-TX

RJ-45 Ports

Power / Self Test LED

Unit LEDs

1

13

2

14

3 15

4 16

5 17

6 18

7 19

8 20

9

21

10 22

11 23

12 24

Power/

 

 

Self Test

 

27

1

25 / Up 26 / Down

27

2

 

 

3

Alert

 

4

Unit

28

3C17304 Superstack 3 Switch 4228G

28

Alert LED

10/100/1000BASE-T GBIC ports ports

14 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES

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.

10BASE-T/ The Switch has 24 or 48 auto-negotiating 10BASE-T/100BASE-TX ports 100BASE-TX Ports configured as Auto MDIX (cross-over). While auto-negotiation is enabled,

these ports can automatically detect whether they need to operate in MDI or MDIX mode. 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.

10/100/1000BASE-T The Switch has two auto-negotiating 10/100/1000BASE-T ports

Ports configured as Auto MDIX (cross-over). While auto-negotiation is enabled, these ports can automatically detect whether they need to operate in MDI or MDIX mode. These ports provide 10/100/1000 Mbps full duplex connections to other Gigabit Ethernet devices. Full duplex allows packets to be transmitted and received simultaneously which, in effect, doubles the potential throughput of a link. These ports require either straight-through or cross-over Category 5 cables with RJ-45 connectors at both ends. The maximum UTP cable length is 100 m (328 ft) over Category 5 cable.

The 10/100/1000BASE-T ports will auto-negotiate to the appropriate speed.

GBIC Ports This section applies to the SuperStack 3 Switch 4228G only.

The two GBIC ports support Category 5 twisted pair cable and fiber Gigabit Ethernet short-wave (SX), long-wave (LX) and long-haul (LH70) GBIC transceivers in any combination. This offers you the flexibility of using GBIC transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high capacity aggregated link backbone connection.

About the Switch 4200 Series 15

Fiber GBIC's.

The default state for these ports is auto-negotiation enabled, where speed, duplex and flow control modes are negotiated. Because the speed and duplex modes are fixed by the media type, only the flow control is negotiated with the link partner. Alternatively, auto-negotiation can be disabled and the flow control setting can be manually configured.

1000BaseT GBIC's

These ports will auto-negotiate to 1000BASE-T, full duplex only. Although it is not possible to disable auto-negotiation it is possible to change the advertised capabilities for flow control support, effectively enabling or disabling flow control.

LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see “Solving Problems Indicated by LEDs” on page 54.

It is not possible to determine the duplex mode from the LEDs. For more detailed information, refer to the “SuperStack 3 Switch Management Interface Reference Guide” on the CD-ROM that is supplied with the Switch.

Table 4

LED behavior

 

 

 

 

LED

Color

Indicates

 

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

 

Green

A 100 Mbps link is present and the port is enabled.

 

Green flashing

Packets are being transmitted/received on the port.

 

Yellow

A 10 Mbps link is present and the port is enabled.

 

Yellow flashing

Packets are being transmitted/received on the port.

 

Green / Yellow

A 10 or 100 Mbps link is present, but the port is disabled.

 

alternating

 

 

Off

No link is present.

Port Status LEDs GBIC ports

 

Green

A 1000 Mbps link is present and the port is enabled.

 

Green flashing

Packets are being transmitted/received on the port.

Port Status LEDs 10/100/1000BASE-T ports

 

Green

A 1000 Mbps link is present and the port is enabled.

(continued)

 

16 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES

LED

Color

Indicates

 

 

 

 

Green flashing

Packets are being transmitted/received on the port.

 

Yellow

A 10 or 100 Mbps link is present and the port is enabled.

 

Yellow flashing

Packets are being transmitted/received on the port.

 

Green / Yellow

A 10, 100 or 1000 Mbps link present but disabled.

 

alternating

 

 

Off

No link is present.

Unit LEDs

 

1–4

Green

When the Switch forms a stack with other Switch 4200

 

 

Series units the LED indicates the position of the unit in the

 

 

stack and that a link is present. Unit LED number 1 can also

 

 

indicate a stand-alone Switch.

 

Off

The Switch initialization process is not complete.

Power/Self Test LED

 

 

Green

The Switch is powered-up and operating normally.

 

Green flashing

The Switch is either downloading software or is initializing

 

 

(which includes running a Power On Self Test).

 

Yellow

The Switch has failed its Power On Self Test.

 

 

Refer to Chapter 4 Solving Problems Indicated by LEDs.

 

Off

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

 

 

Power Supply Unit.

Alert LED

 

 

Green flashing

The Switch Alert LED has been configured via the CLI or Web

 

 

Interface to flash.

 

Off

The Switch Alert LED has been configured via the CLI or Web

 

 

Interface to be off (Default state).

 

 

 

About the Switch 4200 Series 17

Switch 4200 Series

Figure 4 Switch 4200 Series — rear view

— Rear View Detail

 

 

Supply Data Warning Label

Console (max) 19200,8,1,N

 

 

 

 

 

 

 

Redundant Power System Socket

 

Console Port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Socket

 

 

Power Socket The Switch automatically adjusts its power setting to any supply voltage in the range 90-240 VAC.

Redundant Power To protect against internal power supply failure, you can use this socket System Socket to connect a Switch 4200 to a SuperStack Advanced Redundant Power

System (RPS). See “Connecting a Redundant Power System” on page 25.

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

18 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES

Default Settings Table 5 shows the default settings for the Switch 4200 Series:

Table 5 Default Settings

Feature

Switch 4200 Series

 

 

Automatic IP Configuration

Enabled

Port Status

Enabled

Port Speed

All ports are auto-negotiated

Duplex Mode

All ports are auto-negotiated

Flow Control

Enabled in half duplex

 

Auto-negotiated in full duplex

Broadcast Storm Control

Enabled

Virtual LANs (VLANs)

All ports belong to the untagged Default VLAN

 

(VLAN 1) with 802.1Q learning operational

IP Multicast Filtering

Filtering enabled

Rapid Spanning Tree Protocol

Enabled

Fast Start:

Enabled on all ports

RMON Alarm

Enabled

Smart Auto-Sensing

Enabled

LACP

(10/100/1000BASE-T ports and GBIC ports only)

 

Enabled

Quality of Service (QoS)

All ports prioritize NBX VoIP IP.

 

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

2

INSTALLING THE SWITCH

 

This chapter contains the information you need to install and set up the Switch 4200 Series. It covers the following topics:

Package Contents

Choosing a Suitable Site

Rack-mounting

Placing Units On Top of Each Other

The Power-up Sequence

GBIC Operation

WARNING: Safety Information. Before installing or removing any components from the Switch 4200 Series 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 4200 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 4200 entfernen oder dem Switch 4200 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

Switch unit

 

CD-ROM

 

Getting Started Guide (this guide)

 

Management Quick Reference Guide

 

Release Notes

 

Unit Information Labels

 

Warranty Information

 

Power Cord

 

2 x Mounting brackets

 

4 x Screws

 

4 x Rubber feet

 

 

Choosing a Suitable

The Switch is suited for use on a desktop, either free standing or

Site

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

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

Rack-mounting 21

The air is as free from dust as possible.

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

 

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

 

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.

 

No more than eight Switch units are placed on top of one another, if

 

the units are free-standing.

 

 

Rack-mounting

The Switch 4200 Series are 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 5.

22 CHAPTER 2: INSTALLING THE SWITCH

Figure 5 Fitting a bracket for rack-mounting

3Insert 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.

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

5Insert the Switch into the 19-inch rack and secure with suitable screws (not provided). Ensure that ventilation holes are not obstructed.

6Connect network cabling.

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

Placing Units On Top of Each Other 23

Placing Units On If the Switch units are free-standing, up to eight units can be placed one Top of Each Other on top of the other. If you are mixing a variety of SuperStack® 3 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

Up to four Switch 4200 Series units can be stacked together and then

 

treated as a single manageable unit with one IP address. Any

 

combination of Switch 4200 Series units is allowed in a single stack. The

 

units are connected together via the 10/100/1000BASE-T ports on the

 

front of the unit as shown in Figure 6. Starting from the base of the stack,

 

the port marked with ‘up’ is connected to the port marked with ‘down’

 

on the unit above. Cable lengths of between 14 cm (5.5 in) and

 

100 m (328 ft) can be used for stacking.

Figure 6 Stacking example

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3C17302 Superstack 3 Switch 4250T

 

 

 

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Power/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Self Test

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

Up

Down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Alert

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49

50

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13

2

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8 20

9

21

10 22

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12 24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3C17304 Superstack 3 Switch 4228G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power/

 

 

 

 

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Self Test

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

25 / Up

26 / Down

 

27

 

 

 

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Alert

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Unit

 

 

 

 

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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12 24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3C17304 Superstack 3 Switch 4228G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power/

 

 

 

 

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Self Test

 

 

 

 

 

27

 

 

 

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

25 / Up

26 / Down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Alert

 

 

 

 

 

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

13

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12 24

 

3C17300 Superstack 3 Switch 4226T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Self Test

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

25 / Up

26 / Down

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Alert

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Unit

 

The unit LEDs will display the unit number in the stack, from 1 at the bottom to 4 at the top.

3Com recommends that when you add a new unit to a stack, you should first initialize it to factory default settings

Stack renumbering occurs when another Switch 4200 Series unit is added to the bottom of an established stack except when the stack is already 4 units high. In this instance the ‘down’ port on the bottom unit of the existing stack will be disabled and its LED will flash green. You will then not be able to use that port again until the link is lost on that port.

24 CHAPTER 2: INSTALLING THE SWITCH

When another Switch 4200 Series unit is added to the top of an established stack, no stack renumbering occurs. If however the unit being added takes the stack height above 4 then the ‘up’ port on the top unit of the existing stack will be disabled and its LED will flash green. You will then not be able to use that port again until the link is lost on that port.

When removing a Switch from a stack, note the following:

Removing a Switch 4200 Series unit from the bottom of an existing stack will cause the remaining stack to renumber.

Removing a Switch 4200 Series unit from the middle of an existing stack will cause the other Switches in the stack to divide into two stacks. Units below the unit removed will not renumber, units above will renumber.

Removing a Switch 4200 Series unit from the top of an existing stack will have no effect on the remaining stack.

If you are having problems, refer to “Solving Stack Formation Problems” on page 56.

The Power-up

The following sections describe how to get your Switch 4200 Series

Sequence

powered-up and ready for operation.

Powering-up the

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

Switch 4200 Series

 

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

2Plug 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.

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

When the POST has completed, check the Power On Self Test LED to make sure that your Switch is operating correctly. Table 6 shows possible colors for the LED.

The Power-up Sequence 25

Table 6 Power/Self Test LED colors

Color

State

 

 

Green

The Switch is powered-up and operating normally.

Yellow

The Switch has failed its Power On Self Test.

Off

The Switch is not receiving power.

 

 

In addition, check the Unit LEDs on all Switches in the stack. If a Unit LED is off, initialization is not complete. 3Com recommends that you do not use the Switch's management interface until the Unit LED is green.

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

LEDs” on page 54.

Connecting a You can connect a SuperStack Advanced Redundant Power System Redundant Power (3C16071, 3C16071A or 3C16071B) to the Switch. This unit, which is

System also known as an RPS, 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 (part number 3C16074A). For full redundancy, the unit requires two type 2A Power Modules combined using a Type 2 Y-Cable (part number 3C16078).

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

CAUTION: The Switch can only use a SuperStack Advanced Redundant

Power System output.

Choosing the Correct All of the ports on the front of the Switch 4200 Series are Auto-MDIX, Cables that is they have a cross-over capability. The port can automatically detect

whether it needs to operate in MDI or MDIX mode. Therefore you can make a connection to a port with a straight-through (MDI) or a cross-over cable (MDIX).

The Auto-MDIX feature only operates when auto-negotiation is enabled.

If auto-negotiation is disabled, all the Switch ports are configured as

MDIX (cross-over). If you want to make a connection to another MDIX

26 CHAPTER 2: INSTALLING THE SWITCH

port, you need a cross-over cable. 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. See Table 7.

3Com recommends that you use Category 5 twisted pair cable — the maximum segment length for this type of cable is 100 m (328 ft).

CAUTION: If you want to install the Switch using a Category 5E or Category 6 cable, 3Com recommends that you briefly connect the cable to a grounded port before connecting network equipment. If you do not, the cables Electrostatic Discharge (ESD) may damage the Switch's port.

You can create a grounded port by connecting all wires at one end of a UTP cable to an earth ground point, and the other end to a female RJ-45 connector located, for example, on a Switch rack or patch panel. The RJ-45 connector is now a grounded port.

Table 7 Cables required to connect the Switch 4200 Series to other devices if auto-negotiation is disabled

Cross-over Cable

Straight-through Cable

Switch to Switch (MDIX to MDIX)

Switch to Hub (MDIX to MDIX)

Switch to PC (NIC) (MDIX to MDI)

Choosing the correct Choose from the following cable options:

Fiber cables

The 1000BASE-SX ports can be connected to multimode fiber cables only.

The 1000BASE-LX and LH70 GBIC ports use multimode or single-mode fiber optic cables.

For detailed information on fiber cable specifications, refer to the

SuperStack 3 Implementation Guide that accompanies your Switch.

If you wish to connect a 1000BASE-SX MT-RJ port to a fiber port with a different type of connector, for example, SC or ST please contact your network supplier for a suitable patch cable.

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