3COM NETWORK DIRECTOR User Manual
3Com® Network Director User Guide
3C15500
http://www.3com.com/
Part No. DUA1550-0AAA01
Published May 2004
3Com Corporation
350 Campus Drive
Marlborough
MA USA 01752-3064
Copyright © 2004, 3Com Technologies. All rights reserved. No part of this documentation may be reproduced
in any form or by any means or used to make any derivative work (such as translation, transformation, or
adaptation) without written permission from 3Com Technologies.
3Com Technologies reserves the right to revise this documentation and to make changes in content from time
to time without obligation on the part of 3Com Technologies to provide notification of such revision or
change.
3Com Technologies provides this documentation without warranty, term, or condition of any kind, either
implied or expressed, including, but not limited to, the implied warranties, terms or conditions of
merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or
changes in the product(s) and/or the program(s) described in this documentation at any time.
If there is any software on removable media described in this documentation, it is furnished under a license
agreement included with the product as a separate document, in the hard copy documentation, or on the
removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy,
please contact 3Com and a copy will be provided to you.
UNITED STATES GOVERNMENT LEGEND
If you are a United States government agency, then this documentation and the software described herein are
provided to you subject to the following:
All technical data and computer software are commercial in nature and developed solely at private expense.
Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or
as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are
provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights
only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable.
You agree not to remove or deface any portion of any legend provided on any licensed program or
documentation contained in, or delivered to you in conjunction with, this User Guide.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not
be registered in other countries.
3Com and the 3Com logo are registered trademarks of 3Com Corporation. XRN is a trademark of
3Com Corporation
IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Inc.
Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows
NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of
Novell, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusively
through X/Open Company, Ltd.
Netscape Navigator is a registered trademark of Netscape Communications.
HP OpenView is a registered trademark of Hewlett Packard.
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.
The SUN J2RE software included in this product includes code licensed from RSA Security, Inc. Some portions
of the SUN J2RE software licensed from IBM are available at http://oss.software.ibm.com/icu4j/
AdventNet Java SNMP Package Version 1.3.2 Copyright (c) 1998-99 AdventNet, Inc. All Rights Reserved.
Portions of this software were derived from the CMP SNMP 1.2U distribution and the following notice applies
to the CMU software. Copyright 1989 by Carnegie Mellon University. All Rights Reserved.
Permission to use, copy, modify, and distribute this CMU software and its documentation for any purpose and
without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting documentation, and that the name of CMU
not be used in advertising or publicity pertaining to distribution of the software without specific, written prior
permission.
Graphics Server 4 for Microsoft Windows Copyright (c) 1989 - 1996 Bits Per Second Ltd.
PuTTY is copyright 1997-2003 Simon Tatham. Portions copyright Robert de Bath, Joris van Rantwijk, Delian
Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry, and CORE SDI S.A.
Permission is hereby granted, free of charge, to any person obtaining a copy of the PuTTY software and
associated documentation files (the "PuTTY Software"), to deal in the PuTTY Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the PuTTY Software, and to permit persons to whom the PuTTY Software is furnished to do so,
subject to the following conditions: this copyright notice and this permission notice shall be included in all
copies or substantial portions of the PuTTY Software.
Protected by U.S. patents 6,594,696; 6,633,230; 6,646,656; 6,691,161; 6,691,256; Patents Pending.
CONTENTS
ABOUT THIS GUIDE
Conventions 32
Feedback about this User Guide 33
Related Documentation 33
1 GETTING STARTED
Introduction 35
What is 3Com Network Director 35
On the CD 35
Installation 36
Activation 36
Getting Started 37
Creating a New Network Map 38
Discovery Type Step 38
Specify Subnets Step 38
Monitor Core Devices and Links Step 38
Community Strings Step 38
NBX Voice Network Step 38
NBX Call Processors Step 38
Discovery Options Step 39
Scheduled Discovery Step 39
Summary Step 39
Upgrading from 3Com Network Supervisor 39
Coexistence with 3Com Network Director 39
Using saved Network Supervisor maps 40
Using saved 3Com Network Supervisor files 41
The Device Warranty feature 41
Main Features 42
Main Window 42
Network Discovery 42
Network Monitoring 42
The Event System 43
Reports on Historical Data 43
RMON Support 43
VLAN Support 43
Bulk Configuration 44
Backup, Restore and Setup 44
Agent Update 44
Traffic Prioritization 44
Reporting 45
Device Administration 45
Live Update 45
2 PRODUCT ACTIVATION
Introduction 47
Key Concepts 48
Components 48
About Dialog 48
Activation Wizard 49
Obtaining Product Upgrades 51
US, Canada and Latin America 52
Outside US, Canada and Latin America 52
Examples 52
Activating 3Com Network Director 52
Useful Information and References 53
Where can I find the product number for 3Com Network
Director? 53
Where can I find the serial number for 3Com Network Director? 53
Where can I find the license key for 3Com Network Director? 53
What product number is right for me? 54
Key Considerations 54
What if I lose my Activation Key after registration? 54
How do I move my copy of 3Com Network Director to another
workstation? 54
If I re-install the product after it has been activated, do I need to
activate it again? 55
My copy of 3Com Network Director no longer runs, even though it
has been activated. 55
Why can’t I log in to the 3Com support web site? 55
I want to install my upgrade from 3Com Network Supervisor
Advanced Package v2.0 to 3Com Network Director on a different
workstation. 55
I want to upgrade my copy of 3Com Network Supervisor Advanced
Package v2.0 to 3Com Network Director v1.0 56
Troubleshooting 58
My license key to upgrade from 3Com Network Supervisor Advanced
Package v2.0 is rejected 58
3 MAIN WINDOW
Overview 61
Key Concepts 62
Map Files 62
Components 63
Map 63
Tree 63
Toolbar 63
Status Bar 63
Main Menu 64
File 64
Edit 65
View 66
Device 69
Monitoring 70
Alerts/Events 71
RMON 71
To ol s 72
Help 73
File > Lock Menu Option 73
File > Exit Menu Option 74
View > Show Toolbar Menu Option 74
Tools > Scheduled Tasks Menu Option 74
Tools > Options Menu Option 76
General 77
Device Management 78
Internet 80
Discovery 81
Monitoring 81
Logging 82
VLANs 84
Retry/Timeout 84
Security 85
Help > Contents and Index Menu Option 87
Help > Launch User Guide 87
Help > About 3Com
Examples 88
Finding the Product Version 88
Finding the Serial Number, License Number and Activation Key 89
Key Considerations 90
Scheduled Tasks 90
®
Director Menu Option 88
4 DISCOVERING THE NETWORK
Overview 91
Key Concepts 92
The Discovery Process – Detecting Devices 92
IP Ping 93
Device Capability Detection 93
SNMP Type Detection 94
IP to MAC Resolution 94
End Station Type Recognition 94
Web Type Recognition 95
DNS Name Resolution 95
NBX Phone Detection 95
Device Sizing 96
The Discovery Process – Determining Topology 96
Sizing stage 97
Spanning Tree stage 98
Remote Poll Stage (broadcast ARP) 98
Initial Endstation stage 99
Device Resolution Stage 99
Remote Poll Stage (directed pings) 99
Outstanding end station stage 100
Tree Building Stage 100
Clouds – Unknown Topology 100
Other Clouds 103
The Discovery Process – Rediscovery 104
Scheduled Discoveries 106
Components 106
Launching a discovery 106
The Welcome dialog box 107
File > New 107
Tools > Network Discovery with nothing selected 108
Tools > Network Discovery with a discovered subnet selected 108
Tools > Network Discovery with an undiscovered subnet
selected 109
The Network Discovery Wizard 109
Discovery Type Pane 110
Specify Subnets Pane 111
Editing subnets in the list 114
Removing subnets from the list 114
Choosing from a list of known subnets 114
Importing subnets from a file 116
Monitor Core Devices and Links Pane 117
Community Strings Pane 118
NBX Voice Network Pane 120
NBX Call Processors Pane 120
Discovery Options Pane 122
Scheduled Discovery Pane 124
Summary Pane 126
The Network Discovery Progress Dialog Box 128
Network Discovery Summary dialog box 130
The Discovery Report 131
Discovery 132
Topology 132
The Misconfigurations and Optimizations Report 132
The Changes Report 133
The Displayed Map 133
Initial Map Creation 133
Subsequent Map Updates 134
Examples 134
How do I discover my network every day at midnight? 134
Directly From the Options dialog box 134
I have four separate subnets - how do I specify them? 137
One of my subnets is over a slow WAN link - can I discover it, and if so,
what settings should I use? 138
I am using different SNMP community strings for different devices on my
network - how do I specify this? 139
Useful Information and References 140
Why the discovered map may not exactly reflect the network 140
Some devices haven't appeared 140
Some devices are the wrong type 141
There are clouds in my map 141
Support for 3Com devices 142
Support for third party devices 142
Key Considerations 143
Discovering over slow/expensive links 143
Discovery Report Errors and Warnings 144
Discovery Section 144
Topology Section 146
5 WORKING WITH THE MAP
Overview 151
Key Concepts 152
The Map 152
The Tree 154
Components 156
Map Structure 156
The Grouped Network View 156
The Ungrouped Network View 158
Devices 158
Device Icons 158
Pull-Right Menu for Devices 161
Physical Links 163
Unvalidated Links 164
Physical Link Annotations 164
Spanning Tree Protocol Support 165
Pull-Right Menu for Physical Links 165
Layer-3 Connections 166
167
Clouds 167
Pull-Right Menu for Clouds 169
Subnets 169
Device Groups 172
Tooltips 174
Map Item Labels and Address Translation 175
Navigation 182
Panning 182
Zoom in 182
Zoom out 183
Fit to page 183
Shortcut Symbols 186
Navigating Around the Map Using the Tree 187
Viewing the VLANs on Your Network 188
Trace Path 188
Using The Trace Path Wizard 191
Finding Items on Your Network 192
Using Wildcards to Find Partial Matches 193
Searching Within the Search Results 194
Using the Find Dialog Box to Select Items for Operations 195
Finding Devices 195
Finding Links 197
Finding NBX Telephony Components 198
Modifying the Map Layout 200
Manually Modifying the Map Contents 202
Adding Items to the Map 202
Linking Items in the Map 204
Keeping the Map Up-to-date 205
Dynamic Network Login Support 205
Saving and Opening Maps 206
Exporting Maps to Microsoft“ Visio“ 208
209
Printing the Map 210
Background Images 210
Examples 212
Selecting all of the SuperStack 3 Switch 4400 Devices in the
Network 212
Viewing all of the Physical Connections for a Router 215
Focusing in on a Set of Devices in the Map 217
Adding a Link between Map Items from Different Submaps 220
Adding a New Device on Your Network Into the Map 221
Useful Information and References 225
Graphical Support for Specific Device Types 225
NBX Network Telephony Solution 225
3Com Switch 4007 225
3Com Wireless Access Points 225
Files Associated with Saved Maps 226
Network Login 227
6 VIEWING DEVICE DETAILS
Overview 229
Key Concepts 230
Items Supported by the Properties Dialog Box 230
Components 230
Launching the Properties Dialog Box 230
Structure of the Properties Dialog Box 231
The Tabbed Pane 231
The Device Tree 233
Properties Dialog Box for a Node 236
Properties Dialog Box for a Supported Device 237
Supported Device (Stack or Chassis) 238
Supported Device (Single Unit) 239
Properties Dialog Box for an Unsupported Device 240
Properties Dialog Box for an End-Station 241
Properties Dialog Box for a Phone 242
Properties Dialog Box for a Subnet 244
Properties Dialog Box for a Device Group 245
Properties Dialog Box for a Cloud 245
Properties Dialog Box for a Link 247
Properties Dialog Box for a Non-WAN Link 247
Properties Dialog Box for a WAN Link 249
Properties Dialog Box for a Layer-3 Connection 250
Properties Dialog Box for a Multiple Selection 251
Applying Changes to Devices Using the Properties Dialog Box 254
This section describes how you can apply changes to items with the
Properties dialog box. 254
Changing the Custom Name 254
Setting the IP Address for a Manually Added Device 255
Setting the Port Numbers for a Manually Added Link 257
Changing the Community Strings for a Device 258
Changing the Monitoring Settings 261
Changing the Retry and Timeout Settings for a Device or Subnet 262
Changing the Discovery Options for a Subnet 263
Examples 264
Key Considerations 269
Troubleshooting 269
7 MONITORING THE NETWORK
Overview 273
Key Concepts 273
Monitor 273
Monitoring and Event Generation 274
Monitoring State 274
Monitoring State and the Grouped View 276
Monitoring Techniques 276
IP Ping Monitoring 277
SNMP MIB Data Retrieval 277
Service Polling 278
SNMP Trap Receipt 278
Monitor-able Items 279
Monitoring Non-3Com Devices 279
Link Monitoring 279
Components 280
Live Graphs Window 280
Poll Rates 281
Live Graphs Tree 281
Live Graphs Display 282
Displaying Thresholds 283
Live Graphs Toolbar 284
Live Graphs Menu 285
More Detail Dialog Box 286
Detailed Graph Dialog Box 287
Viewing a Monitor’s Component Values 288
Showing Thresholds 289
Showing Plot Points 290
Exporting a Graph 290
Zooming into a Graph 291
Poll Rates 293
Configuration 293
Starting and Stopping Monitoring 293
Disabling and Enabling Individual Monitors 294
Controlling Monitoring Type and Polling Rates 296
Monitoring Mode 296
Poll Rate 298
Specifying Monitoring Mode and Poll Rates at the Whole Map
Level 298
Specifying Monitoring Mode and Poll Rates at the Subnet Level 300
Specifying Monitoring Mode and Poll Rates at the Device Level 301
Specifying Monitoring Mode in the Discovery Wizard 302
Changing Retry Periods and Timeouts 304
Controlling Event Generation from Monitors 304
Registering 3Com Network Director as an SNMP Trap Destination 304
Configuring the Storage of Monitoring Data 306
Examples 308
Enabling Monitoring on the Core Devices in the Map 308
Disabling Monitoring on the Whole Network 308
Configuring Monitoring for a Remote Office 309
Extending the Length of Maintained Monitor History 313
Key Considerations 314
Monitoring and Logged Data 314
Text Displayed in Graphs 314
Problems Starting Monitoring for a Device or Link 315
8 THE EVENT LOG
Overview 319
Key Concepts 319
Events 319
Event Types 320
Monitor-Based Events 320
SNMP Trap-Based Events 321
3Com Network Director Internal Events 321
Event Severities 321
Information Severity 321
Warning Severity 322
High Severity Events 322
Critical Severity 322
Recurring Severity 322
Event Severity Colors 323
Event Resolution 323
Smart Event Analysis 324
Event Correlation 324
Recurring Event Handling 324
Event Suppression 325
SNMP Trap Filtering 325
Alerts 325
Events List Components 326
Launching the Events Window 326
Events Main Window 327
Events List 327
Events Toolbar 329
Events Menu 329
Status Bars 331
Working With Events 332
Navigating to Event Sources in the Map 332
Commenting on Events 333
Manually Resolving Events 334
Deleting Events 335
Refreshing the Events List 336
Exporting the Events List to a CSV Format File 337
Printing the Events List 338
Find Dialog Box 338
Filter Dialog Box 339
Name Filter 340
Show only voice related events Filter 341
Severity Filter 341
Last number of days Filter 342
Resolved Filter 342
Deleted Events Filter 343
Description Filter 343
Comment Filter 343
Filter Status Bar 343
More Detail Dialog Box 344
Event Tab 345
Graphs Tab 346
Trap Decode Tab 348
Event System Configuration 349
Disabling and Enabling Events 349
Disabled Events Dialog Box 350
Selecting Items 351
Controlling Smart Event Analysis 352
Controlling Global Smart Event Analysis 353
Controlling SNMP Trap Filtering 354
Controlling Per-Event Advanced Settings 355
Setting Thresholds for Monitor-Based Events 356
High and Warning Thresholds 356
Launching the Threshold Settings Dialog Box 356
Threshold Settings Dialog Box 357
Configuring the Storage of Monitoring History for Events 360
Managing Event Ageing 361
Ageing Dialog Box 363
Alert System Components 364
Alerts System Overview 364
Attach Alerts Dialog Box 364
Attaching Alerts to Items 366
Configuring Alerts 366
SNMP Trap Alerts 369
Examples 370
Viewing the Unresolved Events for a Subnet 370
Exporting High Severity Events Generated in the Last Week 371
Undeleting an Event 373
Obtaining Events for Received SNMP Traps 376
Getting Events As Soon As Your Network Has A Problem 377
Receiving Notification When A Server Farm Is Unreachable 378
Key Considerations 382
No Events in the Events List 382
Events List Update Was Stopped 382
Filter Has Excluded All Events 383
No Graph Available for an Event 383
9 PERFORMANCE REPORTING
Overview 385
Key Concepts 385
Automated logging 385
Data resolutions 386
Reporting 386
Components 386
Historical report 386
Link monitors 389
Logging options 390
Database 391
Examples 392
Determining the cause of high errors on a link 392
Predicting demand for bandwidth requirements 392
Web server analysis 393
Useful Information and References 395
RRDTool 395
Mapping file format 395
Devices 395
Links between switches/hubs 395
Links between a switch/hub and an end station/cloud 395
Database file format 396
Database management 398
Key Considerations 399
Troubleshooting 399
Mapping file not updating 399
Changing the logging data directory 399
Missing data within RRD database files 400
Empty historical report states 3Com Network Director cannot monitor
device/link 400
10 RMON
Introduction 403
Key Concepts 404
What is RMON 404
Statistics 404
History 404
Host 405
HostTopN 405
Matrix 406
HC-RMON 406
Components 407
3Com support for RMON 407
The RMONView window 407
The Menu bar 408
414
The Toolbar 414
The Table View 416
416
The Graph View 417
Viewing data from the RMON Statistics group 417
Viewing RMON Statistics data for a selected device 417
3Com Switch 4007 418
Viewing data from the RMON History group 423
Viewing RMON History data for a selected device 423
3Com Switch 4007 424
Viewing RMON history data for a selected link 425
History View dialog box 427
History Entries 429
Viewing data from the RMON Host group 431
Viewing RMON Host data for a selected device 431
3Com Switch 4007 432
Viewing RMON host data for a selected link 433
Host View dialog box 436
Viewing data from the RMON Matrix group 440
Viewing RMON Matrix data for a selected device 440
Stations 446
Matrix Flow 446
Managing RMON tables 447
Deletion of RMON Tables 448
Examples 450
How do I graph errors on my core switch links? 450
How do I graph utilization on a specific VLAN? 451
How do I view the data associated with an aggregated link? 451
Useful Information And References 452
RMON 452
RMON Support on individual 3Com devices 452
RMON Limits on individual devices (for table creation) 452
Key Considerations 452
11 CREATING REPORTS
Overview 453
Key Concepts 454
Selection-sensitive 454
Feature Reports Types 454
Device Report History - Restriction 455
Custom Report Types 455
Reports History 455
Export to CSV 456
Components 456
Inventory Report 456
Capacity Report 457
Topology Report 457
Free ports Report 457
Reports Dialog Box 458
Generate Report Tab 459
History Tab 460
Custom Report Types Dialog Box 462
Add/Edit Report Type Wizard 463
Columns Step 463
Name and Description Step 467
Summary Step 467
Examples 468
Assessing Network Expansion Capability 468
Ensuring Stacks are Running the Same Agent Version 469
Key Considerations 470
Report Information Out-of-Date 470
Disk Usage 470
Generate Report not Working 471
12 CONFIGURING SINGLE DEVICES
Overview 473
Key Concepts 474
Web Management 474
Telnet Management 474
SSH Management 474
Administration Menu 474
3Com Device View 475
3Com Switch Manager 475
3Com Router Manager 475
Network Jack Configuration Manager 475
IP Ping 475
Trace Route 476
Properties Dialog Box 478
General 478
Security 479
Unit Information 480
VLANs 481
Registering Devices for Warranty 483
Components 483
Device Warranty Dialog Box 483
Device Warranty Wizard 484
Introduction Step 484
Contact Details Step 485
Partner/Reseller Details Step 486
Device Selection Step 488
Summary Step 489
Connection to the 3Com Server 490
What Data is Sent to the 3Com server 490
Reports 491
Web Management 491
Device Warranty 491
Examples 493
Renaming a Switch 4007 using Telnet 493
Disabling a Port on a Switch 4400 using the Web Interface 493
Viewing Connected Ports using Device View 494
Registering 3Com Devices for Warranty 494
Key Considerations 496
Troubleshooting 496
The Device Warranty dialog box is not displayed after a Network
Discovery 496
3Com Network Director lists some devices as unregistered, although
you have already registered them on the 3Com website 496
Frequently Asked Questions 497
Why are some registered devices missing from the email? 497
Why is there no warranty associated with some of the devices in the
email? 497
13 VLAN MANAGEMENT
Overview 499
Viewing the VLANs configured on your network 499
Configuring VLANs on your network 499
Key Concepts 500
General VLAN concepts 500
About VLANs 500
Benefits of VLANs 501
802.1Q VLANs 502
Port-based VLANs 502
Tagged and untagged VLAN membership 503
The Default VLAN 504
Communication between VLANs 504
3Com Network Director VLAN Concepts 508
Discovering VLANs in 3Com Network Director 508
VLAN membership inference 509
Components 514
Show VLANs 514
Filter View button 516
Interaction with Trace Path 516
Maps with no VLAN information 517
VLAN names 517
Find Dialog Box 520
Options Dialog Box 521
VLAN membership 523
Properties dialog box 524
VLANs tab for VLAN-aware switches 524
VLANs tab for VLAN-unaware devices 530
VLAN configuration report 533
Misconfigurations and Optimizations Report 534
Inconsistent VLAN configuration on link 535
Inconsistent VLAN naming 535
Changes Report 536
Trace Path 537
Create VLAN wizard 537
Launching the wizard 537
Checking VLAN connectivity 543
Adding an IP routing interface 547
Summary of changes to be made 550
Edit Port VLAN Membership wizard 552
Launching the wizard 552
Modifying the list of selected switches and ports 553
Checking VLAN connectivity 558
Configuring unsupported devices 558
Summary of changes to be made 559
Device History Report 561
Examples 561
Finding all switches on which a particular VLAN is configured 561
Reporting the VLAN configuration of all switches on the
network 562
Moving a port to another VLAN 562
Extending your VLANs to include new inter-switch links 565
Creating a new Voice VLAN for 3Com NBX systems 568
Useful Information and References 569
Standards, Protocols, and Related Reading 569
Device support 569
Key Considerations 570
Guidelines for creating/editing a VLAN 570
Troubleshooting 570
Incorrect VLAN membership inference 570
VLAN-related network discovery problems 570
Spanning Tree 572
Problems with apparent network loops 572
Reference A 574
Reference B 575
Reference C 576
14 BULK CONFIGURATION
Overview 577
Key Concepts 578
Configuration Templates 578
Device and Port Selections 579
Components 579
Configuration Editor Dialog Box 580
Configuration Summary Tree Features 581
Feature Configuration Panels 582
Loading and Saving Configuration Templates 584
Selection Editor Dialog Box 584
Editing Device and Port Selections 585
Loading and Saving Device and Port Selections 588
Applying a Configuration Template to a Device or Port Selection 589
Configuration Summary Report 591
Device Configuration Panels 592
Configuring User Accounts 592
Add User Account Dialog Box 595
Edit User Account Dialog Box 595
Configuring Access Rights 596
Configuring Trusted IP Hosts 596
Add Trusted IP Address Dialog Box 598
Configuring the Device as a RADIUS Client 599
Configuring System Information 600
Configuring Trap Destinations 601
Add Trap Destination Dialog Box 603
Configuring Spanning Tree 603
Configuring IGMP 605
Configuring Broadcast Storm Control 605
Port Configuration Panels 606
Configuring Port Security 606
Configuring Spanning Tree 608
Configuring Port Administration 608
Configuring Autonegotiation 609
Configuring LACP 611
Examples 612
Configuring User Accounts 612
Configuring Network Login 615
Useful Information and References 619
Supported Devices 619
Supported Features by Device Family 619
Key Considerations 621
Potential Hazards when using Bulk Configuration 621
15 PRIORITIZING NETWORK TRAFFIC
Overview 623
Key Concepts 624
Classification 624
Marking 625
Queuing 627
Dropping 629
Service Levels 629
Configuring the Network for End-to-end Traffic Prioritization 630
Components 631
Prioritize Network Traffic Wizard 631
Configuration Type Step 632
NBX Step 633
Servers Step 635
Applications Step 636
Application Field Values 637
Finish Step and Progress 638
Prioritization Reports 638
Agent Upgrades Required for Prioritization report 638
Network Prioritization Report 639
Prioritization Configuration Report 639
Examples 640
Applying an Existing Configuration to New Devices 640
Prioritizing NBX Voice Traffic 641
Prioritizing Traffic To and From a SAP Server 642
Blocking Access to a Streaming Audio Server 644
Prioritizing a Video Conferencing Application 645
Restricting Access to SNMP 648
Useful Information and References 652
User Priority Field 652
DiffServ Codepoint Field 653
Determining Field Values for Applications 654
3Com Network Director Classifier Rules for NBX Phone Traffic 654
3Com Network Director Service Levels 655
Configuration Levels for Supported 3Com Devices 655
Key Considerations 657
Resource Warnings 657
Why Errors Can Occur When Adding a Server 659
Potential Hazards When Blocking Traffic To and From Servers 659
Servers That Cannot be Selected for Blocking 660
Potential Hazards of Blocking Application Traffic 661
Potential Hazards of Blocking SNMP, HTTP and Telnet 662
16 UPGRADING DEVICE SOFTWARE
Overview 663
Key Concepts 664
Agent Image Files 664
The Internal TFTP Server 664
Scheduling 664
Components 665
Agent Update Wizard 665
Introduction Step 665
Update Type Step 666
Specify Devices and Agent Versions Step 667
Change Agent Version Step 669
Scheduling Step 670
Summary Step 671
The Progress Dialog Box 672
Agent Update Events 673
Agent Update Reports 673
Agent Update Summary report 673
Agent Audit report 674
Examples 674
Update all Switch 4400’s with a New Agent 674
Detecting and Downgrading a Problem Device 675
Useful Information and References 676
Supported Devices 676
Agent Image Filenames 676
Key Considerations 677
Co-existence With Other TFTP Servers 677
Considerations When Downgrading Devices 677
Troubleshooting Device Problems Following Agent Update 677
Repeated Timeouts 678
17 USING 3COM NETWORK DIRECTOR ON A MULTI-SITE
N
ETWORK
Overview 681
Key Concepts 681
Multi-Site Networks 681
Local and Remote Sites 681
Issues with Managing a Multi-Site Network 682
3Com Network Director Support for Multi-Site Networks 682
Configurable Timeouts 683
Configurable Retries 684
Configurable Poll Rates for Active Monitoring 685
Configurable Monitoring Modes 685
Configurable Discovery Options 686
Configurable Monitor Thresholds 686
Components 687
Automatic WAN Link Discovery 687
Manual Layout of WAN Topology 688
Connecting Point-to-Point WAN Interfaces Together 688
Grouping Logically Connected WAN Interfaces Together 689
Restoring WAN Interface Representations after a Manual Layout of
WAN Topology 691
Manual Layout of WAN Topology and Rediscovery 692
Monitoring WAN links 692
Configuring WAN Link Monitors 693
Disabling Monitors on WAN Links 694
Configuration 694
Configuring Retries and Timeout Periods 694
Specifying Retries and Timeout Periods at the Whole Map Level 695
Specifying Retries and Timeout Periods at the Subnet Level 697
Specifying Retries and Timeout Periods at the Device Level 699
Specifying Retries and Timeout Periods in the Network Discovery
Wizard 700
Determining Appropriate Retry and Timeout Periods 701
Issues and Techniques when Configuring the Retry/Timeout
Hierarchy 704
Configuring Monitoring Modes and Poll Rates 705
Determining Monitoring Modes and Poll Rates 706
Issues and Techniques when Configuring Monitoring Modes and Poll
Rates 709
Configuring Discovery 710
Configuring Discovery Options in Multi-Site Networks 710
Scheduling Discoveries in Multi-Site Networks 713
Configuring Monitor Thresholds 714
Examples 715
Grouping Frame Relay Interfaces Together 715
Discovering a Remote Site 727
Configuring Service Monitoring Thresholds Using Historical
Reports 742
Useful Information and References 748
Supported WAN Interface Types 748
Key Considerations 750
Problems with Discovering Remote Sites 750
Problems with Discovering WAN Routers 751
18 NBX SUPPORT
Overview 753
Key Concepts 754
How 3Com Network Director Discovers the Phone Network 754
How 3Com Network Director Represents the Phone Network Icons 754
NBX Call Processor 755
Line Cards 755
Analog Terminal Adapter and Analog Terminal Card 756
NBX Phones and Attendant Consoles 756
NBX Applications 756
How 3Com Network Director Monitors the Phone Network 756
Components 757
Discovering the NBX Voice Network 757
NBX Voice Network Step 757
NBX Call Processors Step 757
Add NBX Call Processor/Modify NBX Call Processor 759
Properties dialog box 760
Monitoring the Phone Network 761
Monitoring the NBX Call Processor 761
Monitoring a Phone 761
Monitoring a Line Card 762
Selecting the Phones Associated with an NBX Call Processor 762
Finding out Which NBX Call Processor is Associated with a Phone 764
Understanding Voice-related 3Com Network Director Events 765
Events related to the NBX Call Processor 765
Events related to phones 766
Events related to other links or devices on the network 766
Launching NetSet 766
Launching NetSet for the NBX Call Processor 766
Launching NetSet for a phone or line card 767
Examples 768
Discovering Several NBX Call Processors Simultaneously 768
Receiving an Alert when my Phones Stop Working 768
Useful Information and References 769
NBX system 769
NBX Call Processor 770
NBX NetSet 770
Key Considerations 770
Troubleshooting 770
There is no NBX Call Processor associated with my phone 770
The phone was added manually 771
The phone is not managed by the NBX Call Processor anymore 771
The display of end stations in the map has been disabled 771
The wrong username/password was specified for the NBX Call
Processor 772
There is a problem with the HTTP service for the NBX Call
Processor 773
The NBX Call Processor stopped responding during the network
discovery 773
Frequently Asked Questions 774
Why are there a lot of unconnected phones on the map? 774
The phone was removed from the network 774
The phone cannot be reached 775
The network device the phone is connected to has not been
discovered 775
Why are some phones on the map showing the user name, while
others show the extension number? 775
How do I change the label of a phone or line card? 776
19 BACKING UP DEVICE CONFIGURATIONS
Overview 777
Key Concepts 778
Physical Identification of Devices 778
Physical Configuration of Devices 778
Backup Components 779
Device Backup Wizard 779
Backup Type Step 779
Specify Devices to Backup Step 781
Specify Telnet Login Information Step 781
Backup Identification Step 782
Scheduling Step 783
Summary Step and Progress 784
Device Backup Events 784
Device Backup Reports 785
Backup Summary Report 785
Backup Audit Report 786
Backup Files 786
Restore Components 787
Device Restore Wizard 787
No Backups Found Step 787
Specify Device Being Replaced Step 788
Specify Backup to Use Step 789
Specify Telnet Login Information Step 790
Summary Step and Progress 791
Device Restore Event 792
Restore Summary Report 792
Setup Components 792
Device Setup Wizard 792
Configuration Source Type Step 793
Specify Source Device Step 793
Specify Source Backup Step 794
Specify Devices to Setup Step 795
Summary Step and Progress 796
Device Setup Event 798
Setup Summary Report 798
Examples 799
Scheduling a Device Backup Operation 799
Restoring to a Replacement Device 801
Deploying a Group of Devices 802
Useful Information and References 805
Supported 3Com Devices 805
Supported Device Parameters 806
Understanding Backup Files 807
Managing Backup Files 807
Key Considerations 808
How Backup Files are Discarded 808
Potential Hazards when using Restore and Setup 809
Why Errors can Occur during Restore and Setup 809
20 LIVE UPDATE
Overview 811
Key Concepts 812
Connection Type 812
Service Packs 812
Live Update Engine 812
Components 813
Live Update Setup Wizard 813
Connection Type Step 813
Use Custom Settings Step 814
Summary Step 815
Live Update Select File Groups Dialog Box 817
Status 818
Table of Available Updates 819
File Group Details 820
Select File Group - Group Name 820
Loading...