3Com SuperStack II 3300 FX Manuale utente

http://www.3com.com/tns

Part No. DUA1510-0AAA04-PDF

Published April 2001

Getting the Best from

3Com®Network Supervisor

Software Version 3.0 for Windows®

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 thefollowing:

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’sstandard commercial license for theSoftware.Technical data isprovidedwith limited rights

only as provided in DFAR 252.227-7015 (No v1995) orFAR 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 mayormay not

be registered in other countries.

3Com, the 3Com logo, LinkBuilder, OfficeConnect, and SuperStack are registered trademarks of

3Com Corporation. CoreBuilder is a trademark of 3Com Corporation.

Windows is a registered trademark ofMicrosoft Corporation.

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

associated.

Guide written by Michael Lamont. Edited by Dave Hall.

CONTENTS

ABOUT THIS GUIDE

How to Use This Guide 5

Who Is This Guide For? 5

Conventions 5

Related Documentation 6

Year 2000 Compliance 6

Documentation Comments 6

1OVERVIEW OF NETWORK MANAGEMENT

Why Use Network Management? 7

The Benefits of Network Management 7

FullNetwork View froma Single PC 7

Reducing Downtime 8

Improving Performance 8

Freeing Up Personnel 8

Reducing Equipment Costs 8

Key Network Management Functions 8

Monitoring Network Capacity 8

Predicting ProblemLinks and Devices 9

2USING TRANSCEND NETWORK SUPERVISOR TO MANAGE YOUR

NETWORK

Overviewof NetworkSupervisorWizards 12

Major Benefits of Network Management with Network Supervisor 12

Color-Coded View of Your Network Connectivity 12

Real-Time DetailedStress Monitoring 12

Total Visibility of Network Activity 13

Immediate Notification of Problems 13

SettingupNetwork Supervisorfor the First Time 13

Discovering and Mapping Your Network 13

Monitoring Core Devices and Links 14

Reacting to Network Events 15

Viewingthe Stressonyour Network15

Viewing Detailed Stress Indicators 16

Managing and Manipulating Events 19

Intelligent Event Generation 19

Instant Notification of Significant Activity Using Alerts 20

Viewing NetworkTrends and Patterns 21

Tracking the Devices on Your Network 21

Planning Your Network Capacity 22

Listing All the Devices Attached to Each Port 22

Network Discovery Report 22

3LIVE UPDATE

About Live Update 23

Live Update 23

Using Live Update 23

Live Update Setup 23

3COM END USER SOFTWARE LICENSE AGREEMENT

ABOUT THIS GUIDE

How to Use This

Guide This guide is designed to be read before you start to use 3Com®Network

Supervisor. It should enable you to gain an overview of the application

and how you can benefit from it.

This guide outlines:

■The main concepts and benefits of network management and how

you can benefit from it.

■An overview of Network Supervisor and how it can help you.

This is not a procedural guide to using Network Supervisor. For detailed

information onhow to use and configure Network Supervisor, use one of

the Wizards provided with the application or consult the online help.

Who Is This Guide

For? This guide is designed for users who are PC-literate, with some

experience of networking hardware, particularly managed products.

However, you are not expected to have any experience of network

management.

Conventions This section shows an example of the information note icon that is used

throughout this guide to indicate important features or instructions.

This is a sample informationnote icon.

6ABOUT THIS GUIDE

Documentation The following document provides useful background information on

networks and networking.

The 3Com Introduction to Networking (supplied with Network

Supervisor).

This document can be accessed from the Windows Start menu, then by

following this path: Programs>3Com Network Supervisor>Network

Supervisor Guide.

Year 2000

Compliance For information onYear 2000 compliance and 3Com products, visit the

3Com Year 2000 Web page:

http://www.3com.com/products/yr2000.html

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:

■Getting the Best from 3Com Network Supervisor

■Part Number DUA1510-0AAA04-PDF

■Page 20

1OVERVIEW OF NETWORK

MANAGEMENT

This chapter gives you an overview of the basic concepts of network

management. It outlines:

■Why Use Network Management?

■The Benefits of Network Management

■Key Network Management Functions

Why Use Network

Management? Many businesses today run their computers on a computer network.

Using a network management solution allows you to track the

performance of your network and quickly identify problems before they

affect your users. This in turn helps you to run your business more

efficiently.

The Benefits of

Network

Management

Network management provides the following benefits:

■Full Network View from a Single PC

■Reducing Downtime

■Improving Performance

■Freeing Up Personnel

■Reducing Equipment Costs

Full Network View

from a Single PC Some network management software (including 3Com®Network

Supervisor) allows youto view and display alldevices, links andactivity on

your network from the convenience of a single, centrally-situated PC. For

example, you can easily locate andmonitor the health of a specific PC or

other type of device without leaving your desk.

8CHAPTER 1: OVERVIEWOF NETWORKMANAGEMENT

Reducing Downtime Network downtime can affect your business and its productivity. When

this happens, it is important that you restore connections as quickly as

possible.

Reactive network management does reduce downtime by responding to

device and link failures. However, a network management solution

provides you with a proactive management capability. This reduces the

number and severity of failures and can help avoid downtime altogether.

Improving

Performance Network topology and monitoring information give you an accurate view

of your network’s structure and traffic rates. Using this information you

can make changes to the structure of your network to improve its

performance.

Freeing Up Personnel Using a network management solution which gives a full view of your

network and actively warns you of problems, reduces the day-to-day

demands on personnel to find and fix problems. This automation allows

people to focus on key management activities.

Reducing Equipment

Costs Network management enables you to make better use of current

equipment, delaying expensive and disruptive upgrades until they are

necessary. Understanding your network also enables you to choose

upgrades that give the best return for any investment.

Key Network

Management

Functions

The key network management functions described here are useful tools

which help to deliver the benefits of network management described in

“The Benefits of Network Management”.

■Monitoring Network Capacity

■Predicting Problem Links and Devices

Monitoring Network

Capacity This lets you track recurring bottlenecks and plan for a regulated

expansion of thecapacity (bandwidth) available to your users.

KeyNetwork Management Functions 9

Predicting Problem

Links and Devices This lets you provide preventative solutions using less staff-hours and

reduces the amount of time that your network is either inefficient or

unavailable.

For example, network management software can show:

■History of problem areas.

■Devices on your network suffering from stress.

Stress is the performance measure of a network object (a device or link)

against pre-defined thresholds.

10 CHAPTER 1: OVERVIEWOF NETWORKMANAGEMENT

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