3com 3C15100E User Guide

3Com® Network Supervisor v5.1 User Guide

3C15100E

http://www.3com.com/

Part No. DUA15100-EAAA02

Published June 2005

3Com Corporation 350 Campus Drive Marlborough MA USA 01752-3064

Copyright © 2005, 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.

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ABOUT THIS GUIDE

Conventions 20 Feedback about this User Guide 21 Related Documentation 21

1 GETTING STARTED

Introduction 23

What is 3Com Network Supervisor 23 Installation 24 Activation 24

Getting Started 25

Creating a New Network Map 26

Discovery Type Step 26 Specify Subnets Step 26 Monitor Core Devices and Links Step 26 Community Strings Step 26 NBX Voice Network Step 26 NBX Call Processors Step 27

Summary Step 27 Coexistence with other Network Management Applications 27 Upgrading from earlier versions of 3Com Network Supervisor 28

Advanced Package compatibility 29

Main Features 29

Main Window 29 Network Discovery 29 Network Monitoring 30 The Event System 30 Traffic Prioritization 30 Reporting 30 Live Update 30

2 PRODUCT ACTIVATION

Introduction 33 Key Concepts 34 Components 34

About Dialog 34 Activate Now dialog 34

Examples 36

Activating 3Com Network Supervisor 36

Useful Information and References 36

Where can I find the product number for 3Com Network Supervisor? 36

Where can I find the serial number for 3Com Network Supervisor? 36

Key Considerations 37

What if I lose my Activation Key after registration? 37 If I re-install the product after it has been activated, do I need to

activate it again? 37 If I upgrade to Network Supervisor v5.1 from an earlier, activated

version of Network Supervisor, do I need to activate it again? 37 Why can’t I log in to the 3Com support web site? 37

3 MAIN WINDOW

Overview 39 Key Concepts 40

Map Files 40

Components 41

Map 41 Tree 41 Toolbar 41 Status Bar 41 Main Menu 42 File 42 Edit 43 View 44 Device 46 Monitoring 47 Alerts/Events 48 To ol s 48

Help 49 File > Exit Menu Option 49 View > Show Toolbar Menu Option 50 Tools > Options Menu Option 50

General 50

Device Management 52

Internet 53 Alerts 54 Help > Contents and Index Menu Option 54 Help > Launch User Guide 55 Help > About 3Com Network Supervisor Menu Option 55

Examples 55

Finding the Product Version 55 Finding the Serial Number and Activation Key 56

4 DISCOVERING THE NETWORK

Overview 57 Key Concepts 58

The Discovery Process – Detecting Devices 58

IP Ping 59

Device Capability Detection 59

SNMP Type Detection 60

IP to MAC Resolution 60

End Station Type Recognition 60

Web Type Recognition 61

DNS Name Resolution 61

NBX Phone Detection 61

Device Sizing 62 The Discovery Process – Determining Topology 63

Sizing stage 64

Spanning Tree stage 64

Remote Poll Stage (broadcast ARP) 64

Initial Endstation stage 65

Device Resolution Stage 65

Remote Poll Stage (directed pings) 65

Outstanding end station stage 66

Tree Building Stage 66

Clouds – Unknown Topology 66 Wireless Clients Clouds 70

The Discovery Process – Rediscovery 70

Components 71

Launching a discovery 72

The Welcome dialog box 72 File > New 73 Tools > Network Discovery with nothing selected 73 Tools > Network Discovery with a discovered subnet selected 73 Tools > Network Discovery with an undiscovered subnet selected 74

The Network Discovery Wizard 75

Discovery Type Pane 75 Specify Subnets Pane 77 Editing subnets in the list 80 Removing subnets from the list 80 Choosing from a list of known subnets 80 Monitor Core Devices and Links Pane 82 Community Strings Pane 83 NBX Voice Network Pane 84 NBX Call Processors Pane 85 Summary Pane 86

The Network Discovery Progress Dialog Box 87

Network Discovery Summary dialog box 88

The Discovery Report 90

Discovery 90

Topology 91 The Misconfigurations and Optimizations Report 91 The Changes Report 92 The Displayed Map 92

Initial Map Creation 92

Subsequent Map Updates 93

Examples 93

I have four separate subnets - how do I specify them? 93 I am using different SNMP community strings for different devices on my

network - how do I specify this? 94

Useful Information and References 95

Why the discovered map may not exactly reflect the network 95

Some devices haven't appeared 95

Some devices are the wrong type 96

There are clouds in my map 96 Support for 3Com devices 96 Support for third party devices 97

Key Considerations 98

Discovery Report Errors and Warnings 98

Discovery Section 98

Topology Section 100

5 WORKING WITH THE MAP

Overview 105 Key Concepts 106

The Map 106 The Tree 108

Components 110

Map Structure 110 The Grouped Network View 110 The Ungrouped Network View 112

Devices 112

Device Icons 112

Pull-Right Menu for Devices 115

Physical Links 116

Unvalidated Links 116

Physical Link Annotations 117

Spanning Tree Protocol Support 118

Pull-Right Menu for Physical Links 118

Layer-3 Connections 119 Clouds 120

Pull-Right Menu for Clouds 121

Subnets 121

Device Groups 124

Tooltips 127

Map Item Labels and Address Translation 128 Navigation 135

Panning 135

Zoom in 135

Zoom out 136

Fit to page 136 Shortcut Symbols 139 Navigating Around the Map Using the Tree 141 Trace Path 141 Using The Trace Path Wizard 144 Finding Items on Your Network 145 Using Wildcards to Find Partial Matches 146 Searching Within the Search Results 147 Using the Find Dialog Box to Select Items for Operations 148 Finding Devices 148 Finding Links 150 Finding NBX Telephony Components 151

Modifying the Map Layout 153

Manually Modifying the Map Contents 154 Adding Items to the Map 154 Linking Items in the Map 156

Keeping the Map Up-to-date 157 Saving and Opening Maps 157 Printing the Map 160

Examples 161

Selecting all of the SuperStack 3 Switch 4400 Devices in the Network 161

Viewing all of the Physical Connections for a Router 164 Focusing in on a Set of Devices in the Map 166 Adding a Link between Map Items from Different Submaps 169 Adding a New Device on Your Network Into the Map 171

Useful Information and References 174

Graphical Support for Specific Device Types 174

NBX Network Telephony Solution 174

3Com Switch 4007 174

3Com Wireless Access Points 174

Files Associated with Saved Maps 175

6 VIEWING DEVICE DETAILS

Overview 177 Key Concepts 178

Items Supported by the Properties Dialog Box 178

Components 178

Launching the Properties Dialog Box 178 Structure of the Properties Dialog Box 179

The Tabbed Pane 179

The Device Tree 181 Properties Dialog Box for a Node 183 Properties Dialog Box for a Supported Device 184 Supported Device (Stack or Chassis) 185 Supported Device (Single Unit) 186 Properties Dialog Box for an Unsupported Device 186 Properties Dialog Box for an End station 187 Properties Dialog Box for a Phone 188 Properties Dialog Box for a Subnet 190 Properties Dialog Box for a Device Group 190 Properties Dialog Box for a Cloud 191 Properties Dialog Box for a Link 192

Properties Dialog Box for a Link 193 Properties Dialog Box for a Layer-3 Connection 194 Properties Dialog Box for a Multiple Selection 195 Applying Changes to Devices Using the Properties Dialog Box 197

This section describes how you can apply changes to items with the

Properties dialog box. 197

Changing the Custom Name 197

Setting the IP Address for a Manually Added Device 198

Setting the Port Numbers for a Manually Added Link 200 Changing the Community Strings for a Device 201

Examples 205 Key Considerations 208

Troubleshooting 208

7 MONITORING THE NETWORK

Overview 211 Key Concepts 211

Monitor 211 Monitoring and Event Generation 212 Monitoring State 212

Monitoring State and the Grouped View 214

Monitoring Techniques 214

IP Ping Monitoring 215 SNMP MIB Data Retrieval 215 Service Polling 216 SNMP Trap Receipt 216

Monitor-able Items 217

Monitoring Non-3Com Devices 217

Link Monitoring 217

Components 218

Live Graphs Window 218

Poll Rates 219 Live Graphs Tree 219 Live Graphs Display 220

Displaying Thresholds 220

Live Graphs Toolbar 222 Live Graphs Menu 222 More Detail Dialog Box 223

Configuration 225

Starting and Stopping Monitoring 225

Disabling and Enabling Individual Monitors 226 Controlling Event Generation from Monitors 227 Registering 3Com Network Supervisor as an SNMP Trap

Destination 227

Examples 228

Enabling Monitoring on the Core Devices in the Map 228 Disabling Monitoring on the Whole Network 229

Key Considerations 229

Text Displayed in Graphs 229 Problems Starting Monitoring for a Device or Link 230

8 THE EVENT LOG

Overview 233 Key Concepts 233

Events 233

Event Types 234

Monitor-Based Events 234

SNMP Trap-Based Events 234

3Com Network Supervisor Internal Events 235

Event Severities 235

Information Severity 235 Warning Severity 235 High Severity Events 235 Critical Severity 236 Recurring Severity 236 Event Severity Colors 236

Event Resolution 236

Event Correlation 237 Recurring Event Handling 237 Event Suppression 238 SNMP Trap Filtering 238

Alerts 238

Events List Components 239

Launching the Events Window 239 Events Main Window 240

Events List 241 Events Toolbar 242 Events Menu 243 Status Bars 245

Working With Events 246

Navigating to Event Sources in the Map 246 Commenting on Events 246 Manually Resolving Events 247

Deleting Events 248 Refreshing the Events List 249 Exporting the Events List to a CSV Format File 250 Printing the Events List 251 Find Dialog Box 251 Filter Dialog Box 252

Name Filter 253

Show only voice related events Filter 254

Severity Filter 255

Last number of days Filter 255

Resolved Filter 255

Deleted Events Filter 256

Description Filter 256

Comment Filter 256 Filter Status Bar 257

More Detail Dialog Box 257

Event Tab 258

Event System Configuration 259

Disabling and Enabling Events 259

Disabled Events Dialog Box 260

Selecting Items 261 Controlling How Events are Logged 262 Setting Thresholds for Monitor-Based Events 262

High and Warning Thresholds 263

Launching the Threshold Settings Dialog Box 263

Threshold Settings Dialog Box 263 Managing Event Ageing 266

Ageing Dialog Box 267

Alert System Components 269

Alerts System Overview 269 Configure Alerts Dialog Box 269

Attaching Alerts to Items 270 Configure Global Alerts Dialog Box 271

Enabling Global Alerts 272

If you enable a Sound alert then the alert’s action will only be

successfully performed if you have a correctly configured sound card

and suitable speakers or headphones on the PC running 3Com

Network Supervisor. 273

Configuring Alerts 273

Launching Alerts When Events are Resolved 275

Examples 277

Viewing the Unresolved Events for a Subnet 277 Exporting High Severity Events Generated in the Last Week 277 Undeleting an Event 279 Receiving Notification When A Server Farm Is Unreachable 282

Key Considerations 286

No Events in the Events List 286

Events List Update Was Stopped 286

Filter Has Excluded All Events 287

9 CREATING REPORTS

Overviews 289 Key Concepts 290

Selection-sensitive 290 Feature Reports Types 290 Device Report History - Restriction 290 Custom Report Types 291 Reports History 291 Export to CSV 291

Components 291

Inventory Report 292 Capacity Report 292 Topology Report 292 Free ports Report 293 Reports Dialog Box 293

Generate Report Tab 294

History Tab 295 Custom Report Types Dialog Box 297 Add/Edit Report Type Wizard 298

Columns Step 298

Name and Description Step 302

Summary Step 302

Examples 303

Assessing Network Expansion Capability 303 Ensuring Stacks are Running the Same Agent Version 304

Key Considerations 305

Report Information Out-of-Date 305 Disk Usage 305 Generate Report not Working 306

10 CONFIGURING SINGLE DEVICES

Overview 307 Key Concepts 307

Web Management 307 Telnet Management 308 SSH Management 308 Administration Menu 308

Network Jack Configuration Manager 308

Properties Dialog Box 309

General 309 Addresses 310 SNMP 311

Registering Devices for Warranty 312

Components 312

Device Warranty Dialog Box 312 Device Warranty Wizard 313

Introduction Step 314 Contact Details Step 315 Partner/Reseller Details Step 315 Device Selection Step 317

Summary Step 318 Connection to the 3Com Server 319 What Data is Sent to the 3Com server 319 Reports 320

Device Warranty 320

Examples 322

Renaming a Switch 4007 using Telnet 322 Disabling a Port on a Switch 4400 using the Web Interface 322 Registering 3Com Devices for Warranty 322

Key Considerations 324

Troubleshooting 324

The Device Warranty dialog box is not displayed after a Network

Discovery 324

3Com Network Supervisor lists some devices as unregistered, although

you have already registered them on the 3Com website 325 Frequently Asked Questions 325

Why are some registered devices missing from the email? 325

Why is there no warranty associated with some of the devices in the

email? 325

11 PRIORITIZING NETWORK TRAFFIC

Overview 327 Key Concepts 328

Classification 328 Marking 329

Queuing 331 Dropping 333 Service Levels 333 Configuring the Network for End-to-end Traffic Prioritization 334

Components 335

Prioritize Network Traffic Wizard 335

Configuration Type Step 336 NBX Step 337 Servers Step 339 Applications Step 340 Application Field Values 341 Finish Step and Progress 342

Prioritization Reports 342

Agent Upgrades Required for Prioritization report 342 Network Prioritization Report 343 Prioritization Configuration Report 343

Examples 344

Applying an Existing Configuration to New Devices 344 Prioritizing NBX Voice Traffic 345 Prioritizing Traffic To and From a SAP Server 346 Blocking Access to a Streaming Audio Server 348 Prioritizing a Video Conferencing Application 349 Restricting Access to SNMP 352

Useful Information and References 356

User Priority Field 356 DiffServ Codepoint Field 357 Determining Field Values for Applications 358 3Com Network Supervisor Classifier Rules for NBX Phone Traffic 358 3Com Network Supervisor Service Levels 359 Configuration Levels for Supported 3Com Devices 359

Key Considerations 361

Resource Warnings 361 Why Errors Can Occur When Adding a Server 363 Potential Hazards When Blocking Traffic To and From Servers 363 Servers That Cannot be Selected for Blocking 364 Potential Hazards of Blocking Application Traffic 365 Potential Hazards of Blocking SNMP, HTTP and Telnet 366

12 NBX SUPPORT

Overview 367 Key Concepts 367

How 3Com Network Supervisor Discovers the Phone Network 368 How 3Com Network Supervisor Represents the Phone Network

Icons 368

NBX Call Processor 369

Line Cards 369

Analog Terminal Adapter and Analog Terminal Card 369

NBX Phones and Attendant Consoles 370

NBX Applications 370 How 3Com Network Supervisor Monitors the Phone Network 370

Components 371

Discovering the NBX Voice Network 371

NBX Voice Network Step 371

NBX Call Processors Step 371

Add NBX Call Processor/Modify NBX Call Processor 373 Properties dialog box 374 Monitoring the Phone Network 375

Monitoring the NBX Call Processor 375

Monitoring a Phone 375

Monitoring a Line Card 376 Understanding Voice-related 3Com Network Supervisor Events 376

Events related to the NBX Call Processor 377

Events related to phones 377

Events related to other links or devices on the network 377

Examples 377

Discovering Several NBX Call Processors Simultaneously 377 Receiving an Alert when my Phones Stop Working 378

Useful Information and References 379

NBX system 379 NBX Call Processor 379 NBX NetSet 379

Key Considerations 380

Troubleshooting 380

The phones are not shown on the map, although there is a NBX Call

Processor 380

The display of end stations in the map has been disabled 380

The wrong username/password was specified for the NBX Call Processor 381

There is a problem with the HTTP service for the NBX Call Processor 382

The NBX Call Processor stopped responding during the network discovery 382

Frequently Asked Questions 383

Why are there a lot of unconnected phones on the map? 383 The phone was removed from the network 383 The phone cannot be reached 383 The network device the phone is connected to has not been

discovered 384 Why are some phones on the map showing the user name, while

others show the extension number? 384 How do I change the label of a phone or line card? 385

13 LIVE UPDATE

Overview 387 Key Concepts 388

Connection Type 388 Service Packs 388 Live Update Engine 388

Components 389

Live Update Setup Wizard 389

Connection Type Step 389 Use Custom Settings Step 390 Summary Step 391

Live Update Select File Groups Dialog Box 393

Status 394 Table of Available Updates 395

File Group Details 395 Select File Group - Group Name 396 Download Progress 397 Changing the Download Settings 398 Live Update Activity Report 401

Examples 402

Ensuring 3Com Devices are Supported 402 Updating the Connection Information 403

Solution 1 - Automatic Configuration using the Live Update Setup Wizard 404

Solution 2 - Manual Configuration using the Options Dialog Box 405

Useful Information and References 406

Proxy Server 406

Key Considerations 406

The Proxy Settings are not Retrieved 406 Not Enough Space on the Disk 407

A OBTAINING SUPPORT FOR YOUR PRODUCT

Register Your Product to Gain Service Benefits 409 Purchase Value-Added Services 409 Troubleshoot Online 409 Access Software Downloads 410 Contact Us 410 Telephone Technical Support and Repair 410

B SYSTEM REQUIREMENTS

Operating System 413 Web Browser 413 Additional Software Required 413 Hardware 414

C REPORT EXAMPLES

Overview 415 Discovery Report 416

Discovery Report Example 416 Discovery Report Example Content 417 Misconfigurations and Optimizations Report 419

Spanning Tree Fast Start 419

XRN Fabric 419

Configure aggregated links using LACP 419 Web Cache Redirection 420 Misconfiguration and Optimization Reports 420

Limitations 428

Webcache Redirection and VLANs 428 Redirection on the Cache Port (49XX) 428 Webcache Software Releases 429 Restarting Webcache Traffic Server 429

D ADDING TRAP DECODES

E ADDING MAC ADDRESS VENDOR TRANSLATIONS

F INTEGRATING AN SSH CLIENT

INDEX

3COM END USER SOFTWARE LICENSE AGREEMENT

ABOUT THIS GUIDE

This guide is intended for use by those responsible for installing, setting up and managing a network; consequently, it assumes a working knowledge of networks and network management systems.

If the Release Notes provided with this 3Com Network Supervisor User Guide contain details that differ from the information in this guide, follow the information in the release notes.

Most 3Com user guides are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site:

http://www.3com.com/

20 ABOUT THIS GUIDE

Conventions Ta bl e 1 and Tab l e 2 list conventions that are used throughout this guide.

Tab le 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.

Tab le 2 Text Conventions

Convention Description

Screen displays This typeface represents information as it appears on the

Syntax The word “syntax” means that you must

Commands The word “command” means that you must enter the

The words “enter” and “type”

Keyboard key names If you must press two or more keys simultaneously, the key

screen.

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>.

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

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.”

names are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

Tab le 2 Text Conventions (continued)

Convention Description

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.

Feedback about this User Guide 21

Feedback about this User Guide

GETTING STARTED

Introduction This chapter contains introductory information about 3Com Network

Supervisor, how to install and activate the application and a brief summary of all its major features.

What is 3Com

Network Supervisor

3Com Network Supervisor is an easy-to-use application that allows you to manage and monitor your network. With 3Com Network Supervisor, you can:

■ Discover all devices on your network

■ View the network topology to show exactly how the network is

configured

■ Monitor all devices on the network, including 3Com NBX

and end stations

■ Be alerted wherever you are (for example by pager or SMS), if any

problems occur

■ Pin-point the source of network problems through a powerful

fault-correlation event engine

■ Automatically register all your 3Com devices for warranty in a single

operation

3Com Network Supervisor also provides:

■ Powerful reporting capability for network asset auditing and

identifying potential misconfigurations

For a list of supported devices, refer to the Supported Device PDF supplied with 3Com Network Supervisor.

telephones

24 CHAPTER 1: GETTING STARTED

Installation Double-click your downloaded 3com_network_supervisor_v5_0.exe file

to begin the installation process. Once the installation has started (as shown in Figure 1

Figure 1 InstallShield Wizard

), please follow the steps in the installation wizard.

Activation Once you have installed 3Com Network Supervisor, you will have a

60-day evaluation period within which to activate your software. When you launch 3Com Network Supervisor for the first time the Activate Now dialog will be displayed as shown in Figure 2

Figure 2 Activate Now Dialog

Getting Started 25

To activate your software:

1 Click Get Activation Key. 3Com Network Supervisor will direct you to a

3Com activation website to retrieve your activation key.

2 Once you have your activation key, enter it into the Activation Key text

box and click OK to complete the activation process.

If you are upgrading to Network Supervisor v5.1 from an activated copy of Network Supervisor v5.0, you will not need to reactivate Network Supervisor following the upgrade. Network Supervisor v5.1 will retain the activated status from your existing installation.

However, if you are upgrading from an earlier version of Network Supervisor, you will have to reactivate Network Supervisor following the upgrade.

For more information, please refer to “

Product Activation” on page 33.

Getting Started This section details the operations you need to perform before you can

start using 3Com Network Supervisor with your 3Com devices.

26 CHAPTER 1: GETTING STARTED

When you first run 3Com Network Supervisor, a Welcome dialog is displayed which enables you to:

■ Create a new network map

■ Open an existing map

■ Open the last map you were using

Creating a New

Network Map

To create a new map, select Create a new network map and click OK to launch the Network Discovery wizard. Follow the steps in the wizard to initiate discovery of your network as follows:

Discovery Type Step

You can choose whether you want to:

■ Discover your local IP subnet

■ Discover all subnets connected to your default router

■ Discover one or more specific routers

Specify Subnets Step

If you have chosen to discover specific subnets, enter their details here.

Monitor Core Devices and Links Step

You can choose whether you want 3Com Network Supervisor to monitor the status of your network after it has been discovered. If you select No, you can enable monitoring at any time after discovery is complete.

Community Strings Step

You can enter any non-default SNMP community strings used by your network devices. 3Com Network Supervisor needs to read SNMP information from your network devices in order to successfully create your network map. 3Com Network Supervisor also needs to write to some devices in order to determine network topology accurately.

NBX Voice Network Step

Select Yes, if you have a 3Com NBX voice solution on your network.

+ 432 hidden pages

3com 3C15100E User Guide

3Com® Network Supervisor v5.1 User Guide

CONTENTS

ABOUT THIS GUIDE

Conventions Ta bl e 1 and Tab l e 2 list conventions that are used throughout this guide.

Feedback about this User Guide

Related Documentation

GETTING STARTED

Introduction This chapter contains introductory information about 3Com Network

Installation Double-click your downloaded 3com_network_supervisor_v5_0.exe file

Activation Once you have installed 3Com Network Supervisor, you will have a

Getting Started 25