3com 3C17702 - SuperStack 3 Switch 4900 SX Getting Started Manual

http://www.3com.com/

Part No. DUA1770-2AAA02

Published March 2001

SuperStack

®

3

Switch 4900 SX

Getting Started Guide

3C17702

17702ua.bk Page 1 Friday, April 6, 2001 3:31 PM

3Com Corporation

5400 Bayfront Plaza

Santa Clara, California

95052-8145

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, SuperStack, and Transcend are registered trademarks of 3Com Corporation. The 3Com logo and

CoreBuilder are trademarks of 3Com Corporation.

Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell

and NetWare are registered trademarks of Novell, Inc. 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.

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C

ONTENTS

A

BOUT

T

HIS

G

UIDE

Conventions 8

Related Documentation 9

In addition to this guide, each Switch 4900 SX documentation set

includes the following:

■

Implementation Guide

This guide contains information on the features supported by your

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

■

Management Quick Reference Guide

This guide contains a summary of the web interface and command

line interface commands for the Switch.

■

Release Notes

These notes provide information about the current software release,

including new features, modifications, and known problems.

■

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.

There are other publications you may find useful:

■

Documentation accompanying the Advanced Redundant Power

system.

■

Documentation accompanying the Expansion Modules.

■

Documentation accompanying Transcend Network Supervisor. This is

supplied on the CD-ROM that accompanies the Switch.

Accessing Online

Documentation

The CD-ROM supplied with your Switch contains the following online

documentation:

■

Implementation Guide (PDF format)

■

Management Interface Reference Guide (HTML format).

To access the online documentation from the CD-ROM:

1

Insert the CD-ROM into the CD-ROM drive. If your PC has auto-run

enabled, a splash screen will be displayed automatically.

2

Select the Documentation section from the contents page.

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10 A

BOUT

T

HIS

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UIDE

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

Registration

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

receive up-to-date information on your product:

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

Documentation

Comments

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

documentation more useful to you. Please e-mail comments about this

document to 3Com at:

pddtechpubs_comments@3com.com

Please include the following information when commenting:

■

Document title

■

Document part number (on the title page)

■

Page number (if appropriate)

Example:

■

SuperStack 3 Switch 4900 SX Getting Started Guide

■

Part Number DUA1770-0AAA0x

■

Page 21

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1

I

NTRODUCING

THE

S

WITCH

4900 SX

This chapter contains introductory information about the Switch 4900 SX

and how it can be used in your network. It covers summaries of hardware

and software features and also the following topics:

■

About the SuperStack 3 Switch 4900 SX

■

Switch 4900 SX — Front View Detail

■

Switch 4900 SX — Rear View Detail

■

Default Settings

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4900 SX

About the

SuperStack 3

Switch 4900 SX

The SuperStack

®

3 Switch 4900 SX connects your existing 1000 Mbps

devices and high-performance workgroups with a 1000BASE-SX

backbone or server connection. In addition, you can combine the

SuperStack 3 range of products, with any SuperStack II system as your

network grows.

For information about using the software features of the Switch, refer to

the “SuperStack 3 Switch Management Interface Reference Guide” on

the CD-ROM that accompanies the Switch.

Summary of

Hardware Features

Table 3

summarizes the hardware features that are supported by the

Switch 4900 SX.

Tab le 3

Hardware features

Feature Switch 4900 SX

Addresses

■

Up to 12,000 supported

■

Up to 64 permanent entries

Forwarding Modes

Store and Forward

Duplex Modes

Full duplex

Flow Control

Supported on all ports

Traffic Prioritization

Supported (IEEE 802.IQ)

Gigabit Ethernet Ports

Auto-negotiating 1000BASE-SX

SuperStack 3

Architecture

■

Connects to SuperStack 3 Advanced Redundant

Power System (ARPS) (3C16071B)

■

19-inch rack or stand-alone mounting

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Switch 4900 SX — Front View Detail 13

Summary of Software

Features

Table 4

summarizes the software features that are supported in the

Switch 4900 SX.

Tab le 4

Software features

Switch 4900 SX —

Front View Detail

Figure 1

Switch 4900 SX — front view

Ports

The Switch 4900 SX has 12 auto-negotiating 1000BASE-SX ports with

MT-RJ connectors. The ports can auto-negotiate flow control.

1000BASE-SX ports do not support auto-negotiation of speed and only

support full duplex mode.

Feature Switch 4900 SX

Resilient Links

Supported

Aggregated Links

Support for four groups of four ports per unit

Broadcast Storm Control

Supported

Virtual LANs (VLANs)

Support for up to 30 VLANs using the IEEE 802.1Q

standard

Multicast Filtering

128 Multicast filter groups supported

IGMP filtering supported

Spanning Tree Protocol

Supported

RMON

Seven groups supported: Statistics, History, Alarms,

Hosts, Hosts Top N, Matrix, Events

Management

Web interface, command line interface, and SNMP

supported

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WITCH

4900 SX

LEDs

Table 5

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 22.

Tab le 5

LED behavior

LED Color Indicates

Port Status LEDs

Packet Yellow Packets are being transmitted/received on the port.

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

Status Green A high speed (1000 Mbps) link is present, and the port

is enabled.

Green flashing A high speed (1000 Mbps) link is present, but the port

is disabled.

Off No link is present.

Module Status LEDs

Green The Module is installed and supported. The Link Status

has been determined for a single port Module.

Yellow The Module is installed and supported. The Module

has multi-ports or there is no Link for a single port

Module.

Yellow flashing The Module is installed but not supported. Note that

the 4900 SX unit will continue to operate normally.

Off The Module is not installed.

Unit LEDs

1–4 Green 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.

Off The Switch is stand-alone or the link is not present.

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.

Off The Switch is not receiving power.

Layer-3 LED

Green Layer 3 is enabled on the Switch.

Off Layer 3 is disabled on the Switch.

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Switch 4900 SX — Rear View Detail 15

Switch 4900 SX —

Rear View Detail

Figure 2

Switch 4900 SX — rear view

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 90-240 VAC.

Redundant Power

System Socket

To protect against internal power supply failure, you can use this socket

to connect a SuperStack 3 Advanced Redundant Power System (RPS) to

the Switch. See “Connecting a Redundant Power System”

on page 22.

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 (see Appendix B

) and is set to auto-baud, 8 data bits, no

parity and 1 stop bit.

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4900 SX

Expansion Module

Slot

You can use this slot to install an Expansion Module. Contact your supplier

for further information.

WARNING:

When an Expansion Module is not installed, ensure the

blanking plate is fitted by tightening all screws with a suitable tool.

Default Settings

Table 6 shows the default settings for the Switch 4900 SX. If you initialize

the Switch units, it is returned to these defaults.

Tab le 6

Default Settings

Feature Switch 4900 SX

Port Status

Enabled

Port Speed

1000BASE-SX

Duplex Mode

Full duplex

Flow Control

Auto-negotiated

Broadcast Storm Control

Enabled

High threshold: 3000 broadcast frames per second -

Notify and filter

Low threshold: 1500 broadcast frames per second -

Notify and unfilter

Virtual LANs (VLANs)

All ports belong to the untagged Default VLAN

(VLAN 1) only. 802.1Q learning is disabled

Multicast Filtering

IGMP filtering is enabled

Spanning Tree Protocol

Disabled

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2

I

NSTALLING

THE

S

WITCH

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

Switch 4900 SX. It covers the following topics:

■

Package Contents

■

Choosing a Suitable Site

■

Rack-mounting

■

Placing Units On Top of Each Other

■

The Power-up Sequence

■

Solving Problems Indicated by LEDs

■

Solving Hardware Problems

■

Managing the Switch

WARNING: Safety Information.

Before installing or removing any

components from the Switch 4900 SX 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 4900 SX 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 4900 SX entfernen oder dem Switch 4900 SX

hinzufuegen oder Instandhaltungsarbeiten verrichten, lesen Sie die

Sicherheitsanweisungen, die in Appendix A (Anhang A) in diesem

Handbuch aufgefuehrt sind.

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Package Contents

■

Switch 4900 SX (3C17702)

■

CD-ROM

■

Management Quick Reference Guide

■

Getting Started Guide (this guide)

■

Implementation Guide

■

Release Notes

■

Registration Information

■

Power Cord

■

2 x mounting brackets

■

6 x screws

■

4 x rubber feet

Choosing a Suitable

Site

The Switch is suited for use in a network room, or telecommunications

room, 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 six screws is supplied with the unit.

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

25 mm (1 in.) clearance.

■

Air flow 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.

■

The air is as free from dust as possible.

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Rack-mounting 19

■

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

■

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

the units are free-standing.

■

Ensure there is adequate clearance at the front of the unit to ensure

that the fibers are not damaged as they have a restricted bend radius.

Rack-mounting

The Switch 4900 SX is 1.5U and will fit in most standard 19-inch racks.

However, as each Switch requires a shelf or runner to support its weight,

you will need to allow a 2U space within the rack for each Switch.

WARNING:

The switch should only be used in a rack if it is mounted on

runners, a shelf, or a tray to support the weight. The rack-mount kits

alone are not sufficient to support the weight of the switch. The rack

mount kits must not be used to suspend the Switch from under a table or

desk, or attach it to a wall.

CAUTION:

You must use a full depth shelf or support that will not

obstruct the air flow through the side panels of the Switch 4900 SX.

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 3

Fitting a bracket for rack-mounting

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WITCH

You must use the screws supplied with the mounting brackets. Damage

caused to the unit by using incorrect screws invalidates your warranty.

3

Insert the three screws and tighten with a suitable screwdriver.

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.

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

®

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.

The Power-up

Sequence

The following sections describe how to get your Switch 4900 SX

powered-up and ready for operation.

WARNING:

If you are connecting the Switch 4900 SX to a Type 3 Power

Module, read the Safety Information section in the Type 3 Power Module

User Guide.

Powering-up the

Switch 4900 SX

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.

17702ua.bk Page 20 Friday, April 6, 2001 3:31 PM

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