3COM 3C319 User Manual

®
Network Interface Card User Guide
A member of the high-performance TokenLink Velocity family
TokenLink® Velocity™ ISA
http://www.3com.com/
Part No. 09-0964-001 Published August 1997
3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145
Copyright © 3Com Corporation, 1997.
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 permission from 3Com Corporation.
3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability 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.
UNITED STATES GOVERNMENT LEGENDS:
If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following restricted rights:
For units of the Department of Defense:
Restricted Rights Legend:
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) for Restricted Rights in Technical Data and Computer Software Clause at 48 C.F.R. 52.227-7013. 3Com Corporation, 5400 Bayfront Plaza, Santa Clara, California 95052-8145.
For civilian agencies:
Restricted Rights Legend:
Use, reproduction, or disclosure is subject to restrictions set forth in subparagraph (a) through (d) of the Commercial Computer Software ­Restricted Rights Clause at 48 C.F.R. 52.227-19 and the limitations set forth in 3Com Corporation’s standard commercial agreement for the software. Unpublished rights reserved under the copyright laws of the United States.
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. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.
3Com, NetAge, Parallel Tasking, TokenDisk, TokenLink, and Transcend are registered trademarks of 3Com Corporation. AutoLink and Velocity are trademarks of 3Com Corporation. 3ComFacts is a service mark of 3Com Corporation.
Artisoft and LANtastic are trademarks of Artisoft, Inc. Banyan and VINES are trademarks of Banyan Systems, Incorporated. Compaq is a trademark of Compaq Computer Corporation. CompuServe is a trademark of CompuServe, Incorporated. DEC and PATHWORKS are trademarks of Digital Equipment Corporation. Pentium is a registered trademark of Intel Corporation. IBM, OS/2, and Warp are trademarks of International Business Machines Corporation. Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation. TROPIC is a trademark of National Semiconductor Corporation. NetWare and Novell are registered trademarks of Novell, Inc.
Other brand and product names may be registered trademarks or trademarks of their respective holders.
Guide written by Jean Anderson; revised by Phillip Schlueter. Edited by Nancy Kurahashi. Technical illustration by Tim Buckreus and Mary Inden. Production by Georgi Felix.
ii
L
IFETIME LIMITED
ARRANTY
W
3Com’s EtherLink®, Fast EtherLink, TokenLink®, TokenLink Velocity™, ATMLink™ PCI, and FDDILink™ network interface cards have a Lifetime Limited Warranty. For further details, please see 3Com’s Limited Warranty statement in this guide.
To ensure the very best 3Com service and support, take the time to complete the product registration card.
Customers in the countries or regions shown below should send the completed registration card to the appropriate address. Customers in other non-U.S. locations should send the registration card to the U.S. address on the front of the card.
Asia
3Com Asia Ltd., Marketing Department Room 2506-07, 25/F. Citibank Tower Citibank Plaza, Central Hong Kong
Australia, New Zealand
3Com Australia, Marketing Department 99 Walker Street Level 7 North Sydney New South Wales 2060 Australia
Belgium, Netherlands, Luxembourg
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Italy, Greece, Spain, Portugal, Malta
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Japan
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Sweden, Finland, Norway, Denmark
3Com Nordic, Marketing Department Torshamsgatan 39 Box 1110 164 22 KISTA Sweden
United Kingdom, Eire
3Com UK Ltd., Marketing Department Pacific House Third Avenue Globe Park Marlow-on-Thames Buckinghamshire, SL7 1YL England
Germany, Austria, Switzerland
3Com GmbH, Marketing Department Gustav-Heinemann-Ring 123 D-81739 Muenchen Munich West Germany
C
ONTENTS
A
BOUT THIS GUIDE
Introduction 1 How to Use This Guide 1 Conventions 2
1
I
NTRODUCTION
High-Performance Features 1-1
DynamicAccess Class of Service 1-1 Parallel Tasking Architecture 1-1
Full-Duplex/Dedicated Token Ring Support 1-2 Other Features 1-2 100% IBM Compatibility 1-4
2
I
NSTALLING THE
Installation Requirements 2-1 Safety Precautions 2-2 Inspecting the 3C319 NIC 2-2 Inserting the 3C319 NIC 2-3 Before Configuring the NIC and Installing the Driver 2-4
3C319 NIC
3
I
NSTALLING NETWARE
AutoLink Software Functions 3-1 Before Using the AutoLink Configuration Utility 3-2 Modifying AutoLink Default Settings 3-2 Avoiding Memory Manager Conflicts 3-2 Running the AutoLink Program 3-3
DOS C
LIENTS AUTOMATICALLY
iii
4
I
NSTALLING A NETWORK DRIVER FOR WINDOWS
Before Installing the Driver 4-2 Installing the NDIS 4 Driver for Windows 95 4-2
About Microsoft Windows 95 Versions 4-2
Retail Version of Windows 95 4-2 OSR2 Version of Windows 95 4-3 Finding the Windows 95 Version 4-3
Installing the NDIS 4 Driver for Retail Windows 95 4-3
When Windows 95 PnP Detects the NIC 4-3 When Windows 95 Does Not Detect the NIC 4-4
Installing the NDIS 4 Driver for Windows 95 OSR2 4-6
5
C
ONFIGURING THE
Before Using the Configuration and Diagnostic Program 5-2 Configuring the 3C319 NIC in a PC Without PnP Support 5-2 Changing Configuration Option Settings 5-5 Changing the Configuration of Multiple NICs 5-6 Configuration Options 5-6
Plug and Play (PnP) 5-7 Configuration Mode 5-7 Ring Speed 5-8 I/O Base Address 5-8 BIOS/MMIO Address Location 5-9 Shared RAM Page Size and Address Range 5-9 Interrupt Request Level 5-10 Other Configuration Options 5-10
NIC M
ANUALLY
95
6
I
NSTALLING A NETWORK DRIVER FOR WINDOWS
Before Installing the Driver 6-2 Installing the NDIS 4 Driver for Windows NT 6-2
Windows NT 3.51 6-2 Windows NT 4.0 6-3
iv
NT
7
C
ONFIGURING DYNAMICACCESS CLASS OF SERVICE
Before Starting Configuration 7-1 Activating Class of Service 7-2 Adding Class of Service Ranges and Protocols 7-3 Using Class of Service Advanced Options 7-5
Accessing Class of Service Advanced Options 7-6
Class of Service Advanced Options Settings 7-7
FIFO Packet Threshold 7-7 Concurrent UDP Streams 7-7 Low-Priority Ratio 7-7 Natural Packet Interval 7-8 Disable Switch Packet Prioritization 7-8 Disable Receive Packet Buffering 7-8
Auto Ring Speed Detection 7-8
Using Windows 95 to Access Auto Ring Speed
Detection 7-9
Using Windows NT to Access Auto Ring Speed
Detection 7-10
Disabling Auto Ring Speed Detection 7-10 Setting a Locally Administered Network Address 7-11
8
M
ANUALLY INSTALLING MISCELLANEOUS
N
ETWORK DRIVERS
Examining Driver Files on the
TokenDisk
TokenDisk
Before Installing Drivers 8-3 Installing the Client Driver for NetWare 8-3 Installing the OS/2 Network Driver for NetWare 8-6 Installing the Server Driver for NetWare 8-6 Installing the NDIS 2.01 Driver 8-6 Installing a Driver for Windows for Workgroups 8-6
Before Installing the Driver 8-7
Viewing the Driver Installation Instructions 8-7 Using IBM Drivers 8-8 Using Remote Program Load (RPL) 8-8
Before Using RPL 8-9
Enabling RPL 8-9
Disabling RPL 8-10
Diskette #1 Contents 8-2 Diskette #2 Contents 8-3
TokenDisk
Diskettes 8-1
v
9
T
ROUBLESHOOTING
3C319 NIC LEDs 9-1 Using the Configuration and Diagnostic Program 9-2 Diagnostic Test Types 9-2
Group 1 Diagnostics 9-3
MMIO Register Write/Read Test 9-3 Boot PROM Test 9-3 AIP Checksum Test 9-3 Shared RAM Boundary/Domain Test 9-3 Shared RAM Write/Read Test 9-3 Timer Test 9-3 Open NIC for Ring Operation Test 9-3 Ring Operations Test 9-4
Close NIC Test 9-4 Group 2 Diagnostic 9-4 Running the Diagnostic Tests 9-4 Changing the Test Setup 9-6
Troubleshooting Tips 9-7
A
S
PECIFICATIONS
Cabling A-1 Pin Assignments A-1
NIC I
NSTALLATION
B
T
ECHNICAL SUPPORT
Online Technical Services B-1
World Wide Web Site B-1 3Com Bulletin Board Service B-2
Access by Analog Modem B-2
Access by Digital Modem B-2 3ComFacts Automated Fax Service B-3 3ComForum on CompuServe Online Service B-4
Support from Your Network Supplier B-4 Support from 3Com B-5 Returning Products for Repair B-7
vi
G
LOSSARY
I
NDEX
3COM C
FCC C
LASS
3COM E
ORPORATION LIMITED WARRANTY
B C
ERTIFICATION STATEMENT
ND USER SOFTWARE LICENSE AGREEMENT
vii
FIGURES
5-1 Main Menu 5-3 5-2 NIC Configuration Screen 5-5
7-1 3Com Class of Service Setup Screen 7-2 7-2 Initial Class of Service Additional Ranges Screen 7-4 7-3 Class of Service Additional Ranges Screen with
Added Ranges 7-5
7-4 Class of Service Advanced Options Screen 7-6 7-5 3Com TokenLink Velocity ISA Adapter Dialog Box 7-9
8-1 Main Menu with Driver Installation and Update Selected 8-4 8-2 Network Drivers Menu 8-4
9-1 NIC LEDs 9-1 9-2 Configuration and Diagnostic Program Main Window 9-5 9-3 Run Tests Dialog Box 9-5 9-4 Test Setup Dialog Box 9-6
A-1 DB-9 Connector Pin Assignments A-2 A-2 RJ-45 Connector Pin Assignments A-2
ix
TABLES
1 Notice Icons 2 2 Text Conventions 2
2-1 Initial Settings of Configuration Options 2-5 2-2 Installation Procedures for Supported Network Environments 2-7
5-1 3Com Mode Versus IBM Mode 5-4
xi

ABOUT THIS GUIDE

About This Guide provides an overview of this guide, describes guide conventions, and tells you where to look for specific information.

Introduction

This guide describes how to install, configure, and troubleshoot the 3C319 TokenLink® Velocity™ ISA network interface card (NIC).
The HELP directory on TokenDisk® diskette #1 contains the latest technical information.
This guide is intended for network installers who are familiar with local area networking (LAN) technology, token ring technology, and network interface card installation.
If the information in the Release Notes shipped with your product differs from the information in this guide, follow the Release Notes.

How to Use This Guide

This table shows where to find specific information in this guide.
If you are looking for... Turn to...
3C319 NIC features and product overview Chapter 1 3C319 NIC installation and cabling procedures Chapter 2 Installation and configuration roadmap for your environment Chapter 2 NetWare client driver installation procedures Chapter 3 Windows 95 network driver installation procedures Chapter 4 Manual NIC configuration procedures Chapter 5 Windows NT network driver installation procedures Chapter 6 (continued)
2 ABOUT THIS GUIDE
If you are looking for... Turn to...
DynamicAccess Class of Service configuration procedures Chapter 7 Auto ring speed detection information Chapter 7 Manual installation procedures for miscellaneous drivers Chapter 8 Windows for Workgroups driver installation information Chapter 8 Troubleshooting tips and procedures Chapter 9 Specifications for cabling and connector pin assignments Appendix A Technical support Appendix B

Conventions

Table 1 and Table 2 list conventions that are used
throughout this guide.
Table 1 Notice Icons
Icon Notice Type Alerts you to...
Information note Important features or instructions
Caution Risk of personal safety, system damage, or loss
Warning Risk of severe personal injury
Table 2 Text Conventions
Convention Description
Screen displays This typeface represents information as it appears on
Words in italicized type
of data
the screen. Italics emphasize a point or denote new terms at the
place where they are defined in the text.

INTRODUCTION

1
The 3Com® TokenLink® Velocity™ ISA network interface card (NIC) is a high-performance card for PCs with an Industry Standard Architecture (ISA) bus or Extended Industry Standard Architecture (EISA) bus. This NIC is referred to as the 3C319 NIC in this guide.

High-Performance Features

The 3C319 NIC is designed for high network performance and trouble-free operation. This section describes the performance features of the 3C319 NIC.

DynamicAccess Class of Service

3Com’s DynamicAccess™ features optimize network performance. With the DynamicAccess Class of Service feature, you can select the applications—such as multimedia sessions-—that require the highest-priority access to your network. Based on your selection, the network device driver recognizes high-priority applications and prioritizes their data transmissions.
The NIC implements dual queues to ensure that high-priority traffic gets transmitted before normal-priority traffic. When high-priority traffic is available for transmission, a high-priority token is requested.

Parallel Tasking Architecture

Parallel Tasking® architecture provides the industry’s fastest performance by pipelining data between the PC and the network. Parallel Tasking technology improves network data throughput by overlapping processing tasks to speed data transmission and reception.
1-2 CHAPTER 1: INTRODUCTION
For example, the 3C319 NIC begins writing the first portion of a data frame to the network before it has completed reading it from PC memory.

Full-Duplex/Dedicated Token Ring Support

Full-duplex/Dedicated Token Ring (DTR) is an enhancement to the IEEE 802.5 standard that allows a 16 Mbps switch port to be dedicated to a station.
In full-duplex mode, a station can simultaneously transmit and receive independent data streams for potential data throughput of 32 Mbps. The 3C319 NIC operates in full-duplex mode when attached to a DTR switch.

Other Features

100% compatibility with IBM legacy drivers
and applications
Full connectivity with IBM AS/400 and mainframe
computers
Plug and Play installation for ease of use in many PCs
and advanced operating systems
AutoLink
16-bit client drivers
Universal boot PROM for booting your computer
remotely from a network server
Diagnostic programs to aid problem solving
software for easy installation of NetWare
CISPR B and FCC B certification for reduced
electromagnetic interference when using either shielded twisted-pair (STP) or unshielded twisted-pair (UTP) cables
Data rates of 4 or 16 Mbps over STP or UTP cables
Auto ring speed detection option that permits the
NDIS 4 driver for Windows 95 and Windows NT to detect and operate at the current ring data rate
Other Features 1-3
Promiscuous mode support for the Windows 95 and
Windows NT NDIS miniport drivers. In promiscuous mode, the NIC receives and forwards all network packets that arrive, regardless of the node to which they are addressed. Applications such as Microsoft Systems Management Server require the driver to be in promiscuous mode while they run. Promiscuous mode is automatically enabled and controlled by applications that require this feature. No user control is necessary.
Easy configuration in 3Com mode for highest
performance, or IBM mode with legacy IBM drivers 3Com mode provides significant performance
improvements by implementing Parallel Tasking architecture. Additionally, 3Com mode improves configuration flexibility by increasing the number of available IRQ channels to 8 and the number of I/O base addresses to 31. You can install up to six NICs per PC.
IBM mode provides the same configuration options as IBM 16/4 Token Ring adapters: four IRQ channels and two I/O base addresses. You can use either 3Com drivers or IBM drivers in the IBM mode.
Support for the following PC and network
operating systems:
MS-DOS version 3.2 or later (Microsoft DOS LAN
Manager, Banyan VINES DOS workstation, Banyan VINES 386 Server, IBM PC LAN Program, Novell NetWare DOS Requester, IBM DOS LAN Requester)
NetWare 2.1x or 2.2 (Novell NetWare 286 Server)
NetWare 3.1x, 4.1x, or later (Novell NetWare
386 Server)
Windows NT version 3.51 or later
Windows 95
Windows for Workgroups
IBM OS/2 version 2.0 or later (IBM LAN Server)
1-4 CHAPTER 1: INTRODUCTION
OS/2 version 1.x or later (Novell NetWare
OS/2 Requester)
IBM OS/2 EE version 1.1 or later (IBM LAN
Server/LAN Requester, Communications Manager)
MS-OS/2 version 1.x or later (Microsoft OS/2
LAN Manager)
IBM OS/2 Warp or OS/2 Warp Connect

100% IBM Compatibility

The 3Com TokenLink Velocity ISA NIC is 100% compatible with any commercially available driver or application that functions with the legacy TROPIC chip-based IBM adapters.
If a 3Com TokenLink Velocity ISA NIC is not 100% compatible (as defined above) with any driver or application written to function on any IBM ISA Token Ring adapter, 3Com will refund the purchase price of the NIC.
If you believe your TokenLink Velocity ISA NIC is not compatible, contact the support group of the organization from which you purchased the NIC. For information about 3Com technical support, see Appendix B.
INSTALLING THE
2
3C319 NIC
This chapter describes how to install the TokenLink Velocity ISA NIC (Part No. 3C319) in an ISA or EISA PC and how to connect the PC to the network.

Installation Requirements

Installation of the 3C319 NIC requires the following:
An ISA- or EISA-bus PC with at least 640 K of RAM
and an 80386, 80486, or Pentium processor.
A 16-bit (ISA) or 32-bit (EISA) expansion slot.
A high-density 3.5-inch floppy diskette drive.
Category 3, 4, or 5 UTP or types 1 or 6 STP cabling.
TokenDisk diskettes #1 and #2 containing the
installation program, Configuration and Diagnostic Program, and drivers.
he Configuration and Diagnostic Program supplied on TokenDisk diskette #1 is a DOS application. Before running the Configuration and Diagnostic Program, perform a clean boot from a DOS diskette or the hard drive’s DOS option to ensure that no memory managers or drivers are loaded. The Configuration and Diagnostic Program will not run in a DOS window.
One of the PC and network operating systems
described in the “Other Features” section of
Chapter 1.
Sufficient memory to load the 3C319 NIC driver from
the network operating system. Depending on the LAN operating system, you may need additional free memory. Refer to your network operating system (NOS) documentation for exact memory requirements.
2-2 CHAPTER 2: INSTALLING THE 3C319 NIC

Safety Precautions

WARNING: Personal computers operate with voltages that can be lethal. Before removing the cover, follow these steps to protect yourself and the PC.
1 Turn off the PC and unplug it. 2 Remove jewelry from your hands and wrists. 3 Use insulated or nonconductive tools.

Inspecting the 3C319 NIC

The contents of the 3C319 NIC package follow. If items are missing, contact your authorized network supplier immediately.
TokenLink Velocity 16-bit ISA 3C319 NIC
TokenDisk diskettes #1 and #2
TokenLink Velocity ISA Network Interface Card
User Guide
CAUTION: The NIC is packed in an antistatic container to protect it during shipment. To avoid damaging highly static-sensitive components on the NIC or in the PC, reduce static electricity on your body by wearing an electrostatic discharge wrist strap attached to the chassis or by touching the chassis before handling the NIC.
1 Remove the 3C319 NIC from its box and set it on a
nonstatic surface.
2 Return all packing materials to the shipping
container.
If it is necessary to return the 3C319 NIC to 3Com, pack it in the original (or equivalent) packing material to maintain the warranty.
3 Remove the 3C319 NIC from its antistatic container. 4 Inspect the 3C319 NIC for visible signs of damage.
If you find a problem, immediately notify your authorized network supplier and the carrier that delivered the NIC.
Complete the Product Registration Card and return it to 3Com. Or call 1-800-NET-3Com for immediate registration.

Inserting the 3C319 NIC

Follow these steps to insert the 3C319 NIC:
1 Insert the 3C319 NIC in an empty ISA or EISA
expansion slot.
Make sure it is completely seated in the slot by pushing down firmly on both ends of the NIC.
2 Connect one of the following network cable types
to the 3C319 NIC:
Shielded twisted-pair (STP) cable with a
DB-9 connector
Unshielded twisted-pair (UTP) cable with an
RJ-45 connector
CAUTION: Connect the cable only to the 3C319 NIC that you have just installed. Connecting the cable to other NICs could cause serious damage to them and the token ring network.
TokenLink Velocity NICs support industry-standard token ring Category 3, 4 or 5 UTP or types 1 or 6 STP cabling. These cables meet IEEE 802.5 specifications.
Do not daisy-chain token ring NICs or connect them back to back.
Inserting the 3C319 NIC 2-3
2-4 CHAPTER 2: INSTALLING THE 3C319 NIC
3 Connect the other end of the cable to a network
dual access unit (DAU), a multistation access unit (MAU), controlled access unit (CAU), or a token ring switch.
The 3C319 NIC can operate in full-duplex mode when attached to a Dedicated Token Ring (DTR)-enabled switch.
4 Plug in the PC and turn the power on.
The next step is to verify that the PC operating system recognizes the 3C319 NIC as a new device and configures it. If the operating system cannot automatically configure the NIC, you must configure it manually.
Before Configuring the NIC and Installing the Driver
After you have installed the 3C319 NIC in your PC, the next step is to configure the NIC and install the network driver for your environment.
For some operating systems, NIC configuration and driver installation are automatic; for others, you need to manually configure the NIC before installing the driver.
Most PCs produced after 1995 include Plug and Play (PnP) capabilities. When you turn on the computer after installing the NIC, PnP assigns settings to the following resources:
I/O base address
Interrupt request level
BIOS/MMIO base address
Shared RAM address
The configuration parameters are set initially by 3Com.
able 2-1 lists the default settings of the 3C319 NIC
T
at shipment.
Before Configuring the NIC and Installing the Driver 2-5
Table 2-1 Initial Settings of Configuration Options
Default Settings
Default Settings in
Option
Plug and Play Enabled Enabled Configuration Mode 3Com 3Com I/O Base Address Set by PnP A20h Interrupt Request Level Set by PnP 2(9) Ring Speed 16 Mbps 16 Mbps BIOS/MMIO Base Address Set by PnP CC000 RAM Page Size 16 K 16 K Shared RAM Address Range Set by PnP D8000–DBFFF Memory Mode 16-bit 16-bit I/O Mode 16-bit 16-bit IRQ Driver Type Edge Triggered Edge Triggered AutoSwitch Disabled Disabled Boot PROM Disabled Disabled Zero Wait State Enabled Enabled
PCs with PnP Support
in PCs without PnP Support
If you require other settings, you must change them manually, as described in Chapter 5, “Configuring the
NIC Manually,” and then reboot.
If your PnP PC does not detect and automatically configure the 3Com NIC, do not assume the NIC is defective. The BIOS PnP may be an early design, or the design may be nonstandard. Use the procedures in
Chapter 5, “Configuring the NIC Manually,” to disable PnP
and configure the NIC.
Proceed with NIC configuration and driver installation according to the conditions described below:
If you have a single 3C319 NIC installed and want to
load a single NetWare DOS ODI client, see Chapter 3,
“Installing NetWare DOS Clients Automatically.” Chapter 3 describes using the 3Com AutoLink utility
to configure the NIC automatically and install the DOS 16-bit client network driver for NetWare 3.12 and 4.10 systems.
2-6 CHAPTER 2: INSTALLING THE 3C319 NIC
If you installed the 3C319 NIC in a PC running
Windows 95 with PnP, it will be configured automatically when you install the driver. See
Chapter 4, “Installing a Network Driver for Windows 95.”
After installing the NDIS 4 driver for Windows 95, you have the option to enable DynamicAccess Class of Service support for the 3C319 NIC. See Chapter 7,
“Configuring DynamicAccess Class of Service.”
If you installed the 3C319 NIC in a PC running
Windows NT, disable PnP before installing the driver. See Chapter 5, “Configuring the NIC Manually,” for instructions on disabling PnP. For Windows NT driver installation instructions, see Chapter 6, “Installing a
Network Driver for Windows NT.”
After installing the NDIS 4 driver for Windows NT, you have the option to enable DynamicAccess Class of Service support for the 3C319 NIC. See Chapter 7,
“Configuring DynamicAccess Class of Service.”
If you installed the 3C319 NIC in a PC running
Windows for Workgroups with PnP, disable PnP before installing the driver. See Chapter 5, “Configuring the
NIC Manually,” for instructions on disabling PnP.
For Windows for Workgroups driver installation information, see “Installing a Driver for Windows for
Workgroups” in Chapter 8.
If you installed the 3C319 NIC in a PC without PnP, or
installed the NIC in a PC with a BIOS that does not have a utility to recognize and configure PnP-enabled devices, you must manually configure the NIC before installing the driver. See Chapter 5, “Configuring the
NIC Manually,” and then see Chapter 8, “Manually Installing Miscellaneous Network Drivers.”
Table 2-2 summarizes the installation procedures for
supported network environments.
Before Configuring the NIC and Installing the Driver 2-7
Table 2-2 Installation Procedures for Supported Network Environments
NetWare DOS Client
Step
1 Run AutoLink.
See Chapter
“Installing NetWare DOS Clients Automatically.”
2 Configure
3 Configure
Windows 95 Windows NT Others
Install driver.
See Chapter
3,
“Installing a Network Driver for Windows 95.”
DynamicAccess Class of Service.
See Chapter
“Configuring DynamicAccess Class of Service.”
Boot DOS, disable PnP, and configure NIC.
See Chapter
4,
“Configuring the NIC Manually.”
Install driver.
See Chapter
7,
“Installing a Network Driver for Windows NT.”
DynamicAccess Class of Service.
See Chapter
“Configuring DynamicAccess Class of Service.”
5,
6,
7,
Boot DOS, disable PnP, and configure NIC.
See Chapter
“Configuring the NIC Manually.”
Install driver.
See Chapter
“Manually Installing Miscellaneous Network Drivers.”
5,
8,
If you encounter problems during any step of the installation process, turn to Chapter 9, “Troubleshooting
NIC Installation,” for help.
INSTALLING NETWARE
3
DOS CLIENTS AUTOMATICALLY
The 3Com AutoLink software utility automatically configures one 3C319 NIC and installs the DOS 16-bit ODI client network driver for NetWare 3.12 and 4.10 systems. This chapter describes running the AutoLink program. Disregard this chapter if you do not want to install the DOS 16-bit client driver for NetWare.

AutoLink Software Functions

AutoLink software configures your PC as a NetWare DOS ODI client. The AutoLink configuration program performs the following functions:
Configures a single 3C319 NIC.
The AutoLink configuration utility cannot be used to configure multiple 3C319 NICs.
Installs the NetWare client software from TokenDisk
diskette #1.
Modifies the CONFIG.SYS, AUTOEXEC.BAT, and
NET.CFG files. (The previous versions of these files are renamed CONFIG.3CM, AUTOEXEC.3CM, and NET.3CM.)
The AutoLink configuration utility is a DOS application. It cannot run in PCs running OS/2, Windows 95, or Windows NT.
3-2 CHAPTER 3: INSTALLING NETWARE DOS CLIENTS AUTOMATICALLY
Before Using the AutoLink Configuration Utility
Make sure that the following steps have been performed before using the AutoLink configuration utility:
The NIC is installed in your DOS-based PC and is
connected to the network.
NetWare version 3.12 or later is installed on the server
(if necessary).
A NetWare server account is available with a user ID
and password.
DOS version 3.2 or later is installed on the client PC.

Modifying AutoLink Default Settings

A 3INSTALL.BAT file in the LOGIN directory of the NetWare server allows the AutoLink configuration program to download the NetWare client software from the server instead of from TokenDisk diskette #1. Your system administrator can create a 3INSTALL.BAT file that copies specific software from the server to customize your installation.
Use the AUTOLINK.CFG file to modify the AutoLink configuration process. The AUTOLINK.CFG file in the AUTOLINK directory on TokenDisk diskette #1 contains default settings and descriptions of the AUTOLINK.CFG parameters.
Avoiding Memory Manager Conflicts
The NIC uses areas of upper memory to transfer data. If you are using a memory manager such as EMM386 on your PC, you must reserve the upper memory for the NIC. The 3C319 NIC’s default configuration requires 16 K of shared RAM at address D8000–DBFFF and 8 K of MMIO/BIOS address at CC000. The following example uses EMM386 and the default memory range.
Running the AutoLink Program 3-3
1 Make a backup copy of the CONFIG.SYS file. Type:
copy config.sys config.old [Enter]
2 Edit the memory manager device statement in the
CONFIG.SYS file to exclude the memory range that the 3C319 NIC uses.
The statement should be similar to the following:
DEVICE=C:\WINDOWS\EMM386.EXE NOEMS X=CC00-CDFF X=D800-DBFF
where X stands for exclude, followed by the NIC’s memory range. See Chapter
5, “Configuring the
NIC Manually,” for additional memory ranges.
Refer to your operating system manual for additional instructions and information on using the memory manager.
3 Save the CONFIG.SYS file and exit the text editor. 4 Reboot the PC.
Next, load the NetWare DOS ODI client driver by running the AutoLink program, as described in the next section.

Running the AutoLink Program

The AutoLink program loads the NetWare DOS ODI client driver and automatically configures the 3C319 NIC. To run the AutoLink program, follow these steps:
1 Insert TokenDisk diskette #1 in the floppy drive
and type:
a: [Enter]
2 Type:
autolink [Enter]
The first time you use the installation software, the 3Com software license appears.
3-4 CHAPTER 3: INSTALLING NETWARE DOS CLIENTS AUTOMATICALLY
3 To accept the terms and conditions, type:
y
To view the full text of the license agreement, press [F1].
4 When the information screen appears, press [Enter]
to continue.
A status message appears, followed by a prompt for the ring speed of your network.
5 Enter the ring speed and configuration mode and
press [Enter].
The default ring speed is 16 Mbps. The 3C319 NIC operates at either 16 or 4 Mbps. The speed of the NIC and the network must be the same. Ask your system administrator for your network ring speed. See Chapter 5,
“Configuring the NIC Manually,” for details.
The configuration mode choices are 3Com or IBM mode. The default configuration mode is 3Com mode. See
Chapter 5, “Configuring the NIC Manually,” for details.
A message states that the NIC’s configuration is complete.
6 Remove TokenDisk diskette #1 and press any key
to reboot your PC.
The login prompt for a NetWare server appears.
7 Log in to the NetWare server with your ID
and password.
Your PC is now configured as a NetWare DOS ODI client. If you cannot connect to the NetWare server, see
Chapter 9, “Troubleshooting NIC Installation.”
INSTALLING A NETWORK
4
DRIVER FOR WINDOWS 95
This chapter describes how to install the NDIS 4 driver for the TokenLink Velocity ISA (3C319) NIC in Windows 95 environments. The NDIS 4 driver conforms to Microsoft’s latest NDIS 4.0 miniport specification and provides the following features:
DynamicAccess Class of Service
Auto ring speed detection
Promiscuous mode
The 3C319 NIC NDIS 3 full MAC driver, which is compatible with Microsoft’s earlier NDIS 3.x specification, is available on TokenDisk diskette #1 in the \WIN95 subdirectory. However, the features listed above are available only with the NDIS 4 driver.
Explicit instructions for installing the NDIS 3 driver are no longer provided in this guide because that driver has been superseded by the NDIS 4 driver, which provides additional features such as DynamicAccess Class of Service.
If you still want to load the NDIS 3 driver, follow the instructions provided in this guide for the NDIS 4 driver. When directed to insert TokenDisk diskette #2 (containing the NDIS 4 driver), you should instead insert TokenDisk diskette #1, which contains the NDIS 3 driver. In all other respects, the instructions for installing the NDIS 4 driver and NDIS 3 driver are nearly identical.
4-2 CHAPTER 4: INSTALLING A NETWORK DRIVER FOR WINDOWS 95

Before Installing the Driver

Before you install the NDIS 4 driver, make sure that the 3C319 NIC is installed as described in Chapter 2, and that Windows 95 is installed.
Have the Windows 95 software accessible on diskettes, CD, or hard drive in case the installation utility requests protocol files from the Windows 95 software library.
If your network environment uses the TCP/IP communications protocol, you must obtain from your network administrator all the information you will need to define an IP address during the installation process.
Installing the NDIS 4 Driver for Windows 95
This section describes installing the 3C319 NIC NDIS 4 driver for the following Microsoft Windows 95 versions:
Retail version 950 (950a)
OEM Service Release 2 (OSR2) version 950b
The default installation modes are 16 Mbps ring speed and 3Com mode. If these options are not satisfactory, you can change the settings in Windows 95.
About Microsoft Windows 95 Versions
The 3C319 NIC NDIS 4 driver installation procedures differ depending on the Windows 95 version installed on your PC.
Retail Version of Windows 95
If your PC did not come with Windows 95 already installed, you must install the retail version of Windows 95 (version 950) before you load the driver. The retail version of Windows 95 is designed to upgrade Windows 3.x PCs.
Installing the NDIS 4 Driver for Windows 95 4-3
OSR2 Version of Windows 95
Some PCs are sold with a special Windows 95 version already installed. Windows 95 OEM Service Release 2 (OSR2) is version 950b of Windows 95. An OEM Service Release is an updated version of a Microsoft product for PC original equipment manufacturers (OEMs) to preinstall on new PCs. The OSR2 version of Windows 95 contains some new hardware support and programs.
Finding the Windows 95 Version
To determine which Windows 95 version you are using, open the Control Panel, select System, and read the System information under the General tab. If your release is version 4.00.950 (or 4.00.950a), you are using the retail version of Windows 95 (version 950). If your release is version 4.00.950b, you are using the OSR2 version of Windows 95 (version 950b).
Installing the NDIS 4 Driver for Retail Windows 95
This section describes two ways to install the NDIS 4 driver for retail Windows 95 (version 950), depending on whether or not your PC supports PnP configuration. If you are not sure whether your Windows 95 version has PnP support, first try the following procedure, “When
Windows 95 PnP Detects the NIC.” If your PC does not
automatically detect the 3C319 NIC after you turn on power to the PC, use the second procedure, “When
Windows 95 Does Not Detect the NIC.”
When Windows 95 PnP Detects the NIC
Follow these steps to install the NDIS 4 driver for Windows 95 with PnP support. It is assumed that you are already running Windows 95.
1 Turn on the computer and start Windows 95.
Windows 95 automatically detects the new hardware in the PC. Windows 95 displays the New Hardware Found window.
4-4 CHAPTER 4: INSTALLING A NETWORK DRIVER FOR WINDOWS 95
2 Select Driver from disk provided by hardware
manufacturer and click OK.
Windows 95 displays the Install from Disk dialog box, which prompts you to insert the appropriate diskette and to type the directory location for the NDIS 4 driver.
3 Insert TokenDisk diskette #2 in the floppy drive. 4 Type the following path at the prompt:
a:\
5 Click OK.
If Windows 95 prompts you to insert the Windows 95 CD or diskettes to obtain files from the Windows 95 software library, insert the appropriate media and continue as directed by the prompts.
6 When the setup file has been read, select
TokenLink Velocity ISA NIC on the list and click OK.
Windows 95 imports the driver, and the driver installation is complete.
Auto ring speed detection is automatically enabled when you install the NDIS 4 driver for Windows 95. If you want to disable auto ring speed detection, see “Auto Ring
Speed Detection” in Chapter 7.
The DynamicAccess Class of Service feature is disabled by default when you install the NDIS 4 driver for Windows 95. To activate Class of Service, see Chapter 7,
“Configuring DynamicAccess Class of Service.”
When Windows 95 Does Not Detect the NIC
Follow these instructions to install the NDIS 4 driver for Windows 95 if your PC does not support PnP hardware configuration or does not detect the 3C319 NIC.
If your Windows 95 version has PnP support but is still not able to detect the 3C319 NIC, you should disable PnP before proceeding, as described in Chapter 5,
“Configuring the NIC Manually.” Once you have disabled
PnP, follow these steps to install the NDIS 4 driver:
1 In the Windows 95 desktop, double-click the
My Computer icon.
Installing the NDIS 4 Driver for Windows 95 4-5
2 In the My Computer group, double-click the
Control Panel icon.
3 In the Control Panel group, double-click the
Network icon. 4 In the Network dialog box, click Add. 5 In the Select Network Component Type dialog box,
double-click Adapter. 6 In the Select Network Adapters dialog box, click
Have Disk. 7 Insert TokenDisk diskette #2 in the floppy drive. 8 In the Copy Manufacturer’s Files From selection
box, type:
a:\
9 Click OK.
10 In the Models selection box, select the correct
mode (either ISA or EISA).
Select 3Com TokenLink Velocity ISA 3C319 if you
installed the NIC in an ISA slot. You can also make this selection if the NIC is in an EISA slot as long as you have not enabled the AutoSwitch option. (For more information about enabling the AutoSwitch option, see instructions in the section “Other Configuration
Options” in Chapter 5.)
Select 3Com TokenLink Velocity ISA 3C319 in EISA
mode only if you installed the NIC in an EISA slot
and used the EISA configuration utility to configure the NIC.
In a Compaq EISA-based PC, with PnP enabled on the
NIC, you are asked to run the EISA configuration utility.
Refer to the instructions that accompanied the PC
for details.
11 Click OK. 12 In the Network dialog box, click OK. 13 On the Resources screen, click OK to accept the I/O
base address.
4-6 CHAPTER 4: INSTALLING A NETWORK DRIVER FOR WINDOWS 95
14 Remove TokenDisk diskette #2 from the
floppy drive.
15 Click Yes to restart your PC to activate the driver.
This concludes the procedure for installing the NDIS 4 driver for retail Windows 95 without PnP support.
Auto ring speed detection is automatically enabled when you install the NDIS 4 driver for Windows 95. If you want to disable auto ring speed detection, see “Auto Ring
Speed Detection” in Chapter 7.
The DynamicAccess Class of Service feature is disabled by default when you install the NDIS 4 driver for Windows 95. To activate Class of Service, see Chapter 7,
“Configuring DynamicAccess Class of Service.”
Installing the NDIS 4 Driver for Windows 95 OSR2
Follow these steps to install the driver for Windows 95 OEM Service Release 2 (OSR2) version 950b. It is assumed that you are already running Windows 95.
During installation, have the Windows 95 software accessible on diskettes, CD, or hard drive in case the installation utility requests files from the Windows 95 software library.
1 Install the 3C319 NIC and start the computer.
Windows 95 detects the new hardware. ISA Token Ring Controller appears in the New Hardware Found dialog
notice. The Update Device Driver Wizard dialog box appears.
2 Click Next. 3 Click Other Locations.
The Select Other Locations dialog box appears.
4 Insert TokenDisk diskette #2 in the floppy drive. 5 Type the following path and click OK:
a:\
Installing the NDIS 4 Driver for Windows 95 4-7
6 Verify that the Update Device Driver Wizard dialog
box lists 3Com TokenLink Velocity ISA Adapter, and
click Finish.
Messages appear while files are being copied. The
System Settings Change dialog box appears.
7 Remove TokenDisk diskette #2 from the
floppy drive. 8 Click Yes to restart the computer.
This concludes the procedure for installing the NDIS 4
driver for Windows 95 under OSR2.
Auto ring speed detection is automatically enabled when
you install the NDIS 4 driver for Windows 95. If you want
to disable auto ring speed detection, see “Auto Ring
Speed Detection” in Chapter 7.
The DynamicAccess Class of Service feature is disabled
by default when you install the NDIS 4 driver for
Windows 95. To activate Class of Service, see Chapter 7,
“Configuring DynamicAccess Class of Service.”
CONFIGURING THE
5
NIC MANUALLY
This chapter describes how to configure the 3C319 NIC
manually using the Configuration and Diagnostic Program
on TokenDisk diskette #1. Use the procedures in this
chapter if:
Your PC does not provide PnP configuration; the BIOS
does not have a utility that recognizes and configures PnP-enabled devices
The PnP utility on your PC does not detect and
configure the 3C319 NIC
Your network operating system does not support
PnP configuration
You need to reconfigure a parameter not set by the
PnP BIOS
You need to disable PnP for the 3C319 NIC
You have a system failure while using the
Configuration and Diagnostic Program
Change the default configuration for the NIC only if you
have conflicts with other devices or cards. (See Table 2-1
for initial settings set by 3Com for configuration options.)
For standard settings of commonly used devices, refer to
the SYSRESRC.TXT file in the HELP directory on TokenDisk
diskette #1.
This chapter does not apply to 3C319 NICs installed in
EISA PCs with the AutoSwitch option enabled. To change
software option settings in an EISA PC, use the EISA
configuration utility provided with the PC.
5-2 CHAPTER 5: CONFIGURING THE NIC MANUALLY
Before Using the Configuration and Diagnostic Program
To configure the 3C319 NIC, the NIC must be already installed in your PC and connected to the network, as described in Chapter 2.
The Configuration and Diagnostic Program is a DOS application that will not function properly if the 3C319 drivers are already installed.
The Configuration and Diagnostic Program indicates memory conflicts if you run it with a memory manager without excluding the memory range used by the 3C319 NIC. Before you run the Configuration and Diagnostic Program, you must bypass the drivers and the /memory manager. Use a DOS diskette if you are running DOS 5.0 or earlier.
If you are running Windows NT, perform a clean boot from the DOS partition, or boot from a DOS diskette to run the diagnostic program. If you use Windows 95 or Windows for Workgroups, exit Windows and restart the PC in MS-DOS mode, or boot from a floppy that has the operating system installed on it.
Configuring the 3C319 NIC in a PC Without PnP Support
Before starting, make sure that you have performed a clean DOS boot according to the instructions in the preceding section, “Before Using the Configuration and
Diagnostic Program.” To configure the 3C319 NIC in a PC
without PnP support, follow these steps:
1 Insert TokenDisk diskette #1 in a floppy drive (for
example, the A drive) on your PC, and at the DOS prompt type:
a: [Enter]
2 At the prompt, type:
install [Enter]
The first time you use the installation software, a software license screen appears.
Configuring the 3C319 NIC in a PC Without PnP Support 5-3
3 To accept the displayed terms and conditions, type:
y
To view the full text of the license agreement, press [F1].
The main menu appears, as shown in Figure 5-1.
ESC=Cancel F1=Help
TokenDisk-3C319 TokenLink Velocity ISA NIC v.4.0
MAIN MENU
Installation Tips <ReadMe> ... Microsoft Windows Information AutoLink Auto Configure 3Com ISA NIC Driver Installation and Update ... Configuration and Diagnostic Program NIC (Network Interface Card) Release Notes
Automatically configures the NIC to non-conflicting settings.
(C) Copyright 1996, 3Com Corporation. All Rights Reserved.
[ENTER]=Execute Function [
↑↓
]=Scroll
[F1]=Help [ESC]=<Cancel>
Figure 5-1 Main Menu
4 Use the arrow keys to select Auto Configure 3Com
ISA NIC. Press [Enter]. 5 Select the operating mode and speed:
3Com mode, 16 Mbps
3Com mode, 4 Mbps
IBM mode, 16 Mbps
IBM mode, 4 Mbps
3Com mode provides significant throughput
performance improvements, the same features as IBM
mode, and additional I/O address options and interrupt
request (IRQ) levels that reduce the possibility of conflicts
with other peripherals.
5-4 CHAPTER 5: CONFIGURING THE NIC MANUALLY
IBM mode is compatible with existing IBM drivers.
Table 5-1 shows the differences between the modes.
Table 5-1 3Com Mode Versus IBM Mode
3Com Mode IBM Mode
Requires 3Com drivers for expanded configuration settings. Supports existing IBM Token Ring 16/4 Adapter drivers when the I/O base address = A20 or A24 and the IRQ = 2, 3, 6, or 7.
Parallel Tasking architecture Maximum of 6 NICs in one PC Maximum of 2 NICs in one PC 8 IRQ levels 4 IRQ levels 31 I/O base addresses 2 I/O base addresses (A20h, A24h)
Supports existing IBM Token Ring 16/4 Adapter drivers
6 Press [Enter].
After you have selected the configuration mode and ring speed, the configuration program automatically attempts to configure device parameters to settings that do not conflict with other devices in your PC. The configuration program displays settings for the following parameters:
Configuration mode
I/O base address
Interrupt request level
Ring speed
BIOS/MMIO base address
Shared RAM address range
To change the settings manually, follow the steps in the next section, “Changing Configuration Option Settings.”
7 Press any key to continue.
The configuration program returns you to the main menu (Figure 5-1).
8 Press [Esc] to exit the Configuration and
Diagnostic Program.
Changing Configuration Option Settings 5-5
Changing Configuration Option Settings
PnP is enabled by default. You must disable PnP to
configure the 3C319 NIC with the Configuration and
Diagnostic Program.
To disable PnP for the 3C319 NIC and change the
configuration settings, follow these steps:
1 Insert TokenDisk diskette #1 in the floppy drive (for
example, the A drive) and type:
a:\3trdiag [Enter]
2 Select Install and press [Enter]. 3 Press [Enter] to select Configure NIC.
The screen shown in Figure 5-2 appears.
Diagnostic and Manual Configuration Program Version 2.0
InstallQuit View Select
Plug and Play Configuration Mode l/O Base Address Interrupt Request Level Ring Speed BIOS/MMIO Base Address Shared RAM Address Range Memory Mode I/O Mode IRQ Driver Type Auto Switch
Test
TokenLink Velocity NIC Configuration
NIC Configuration
Enabled 3Com 300h 5 16 Mbps CC000h D8000h-DBFFFh 16 bit 16 bit Edge Triggered Disabled
F1=Help
CancelOKModify File Options
[ENTER]=Change the Setting [
↑↓
]=Scroll
[Alt]+<Highlighted Key>=Execute Function
Figure 5-2 NIC Configuration Screen
4 If Plug and Play is enabled, use the arrow keys to
select Plug and Play and press [Enter] to disable it. 5 Use the arrow keys to select another parameter
and press [Enter].
A second dialog box appears to allow you to make
your choice.
5-6 CHAPTER 5: CONFIGURING THE NIC MANUALLY
6 If you want to change other configuration option
settings, use the arrow keys to select a setting and press [Enter].
You can use a mouse, provided a mouse driver is installed on your PC. In this case, click the setting you want.
7 Continue this procedure to select other options. 8 Press [Tab] until you highlight OK. 9 Press [Enter].
This procedure saves the new settings to the NIC. After manually configuring the 3C319 NIC, you must
install network drivers. If you have disabled PnP and manually configured the NIC for your Windows 95 environment, go to Chapter 4, “Installing a Network
Driver for Windows 95.” For Windows NT environments,
go to Chapter 6, “Installing a Network Driver for
Windows NT.” For information on manually installing
drivers for other operating systems, see Chapter 8,
“Manually Installing Miscellaneous Network Drivers.”
Changing the Configuration of Multiple NICs
If you have more than one 3C319 NIC in a PC, you must configure each one separately. Go to the main window of the Configuration and Diagnostic Program, press [F10], and select the next NIC. Repeat steps 4 through 9 in the section “Changing Configuration Option Settings.”
Configuration Options
This section discusses the configuration options for the 3C319 NIC. For instructions on changing any of these options, see the section “Changing Configuration Option
Settings” earlier in this chapter. The following
configuration options are available:
Plug and Play (PnP)
Configuration Mode
Ring Speed
I/O Base Address
BIOS/MMIO Address Location
Shared RAM Page Size and Address Range
Interrupt Request Level
Memory Mode
I/O Mode
IRQ Driver Type
AutoSwitch
Boot PROM
Zero Wait State

Plug and Play (PnP)

This option enables a PC with Plug and Play (PnP) support
to allocate resources for the 3C319 NIC. The resources
allocated in a PnP system include:
I/O base address
Interrupt request level
BIOS/MMIO base address
Shared RAM base address
Configuration Options 5-7
The default for PnP is enabled. Disable PnP to configure
the 3C319 NIC with the Configuration and Diagnostic
Program. For instructions, see the section “Changing
Configuration Option Settings” earlier in this chapter.
Configuration Mode
This 3C319 NIC provides the following two modes
of operation:
3Com mode
IBM mode
5-8 CHAPTER 5: CONFIGURING THE NIC MANUALLY
3Com mode increases the number of available IRQ channels from 4 to 8 and the number of I/O base addresses from 2 to 31. You can install up to six 3C319 NICs per PC. 3Com drivers are supplied on the TokenDisk diskettes to support these 3Com mode enhancements. The default is 3Com mode.
IBM mode provides the same configuration options as IBM 16/4 Token Ring Adapters: 4 IRQ channels and 2 I/O base addresses. You can continue to use IBM drivers with the NIC in IBM mode.

Ring Speed

The 3C319 NIC operates at a ring speed of either 4 or 16 Mbps. The 3C319 NIC ring speed must match the speed of the token ring network. The default value is 16 Mbps. For the NDIS 4 driver, the auto ring speed detection feature is enabled by default. (To disable the auto ring speed detection feature, see “Auto Ring Speed
Detection” in Chapter 7.)

I/O Base Address

In IBM mode when only one 3C319 NIC is installed, it is designated the Primary NIC. Change the Primary/Alternate option with the Configuration and Diagnostic Program. The base address allowed in IBM mode is A20h (primary) or A24h (alternate). The default is A20h.
In 3Com mode the I/O base addresses designate the NICs. The I/O base addresses for 3Com mode are as follows, with the default address in bold:
A20h 280h 300h 380h A24h 290h 310h 390h 210h 2A0h 320h 3A0h 220h 2B0h 330h 3B0h 230h 2C0h 340h 3C0h 240h 2D0h 350h 3D0h 250h 2E0h 360h 3E0h 260h 2F0h 370h
If a system resource conflict continues, you may have to
change the settings of other NICs or options that are in
your PC.

BIOS/MMIO Address Location

There are 12 possible 8 KB blocks of PC memory that can
be assigned for accessing the ROM area of the 3C319
NIC. The factory default ROM address for the 3C319 NIC
is CC000–CDFFF. The ROM address locations are as
follows, with the default in bold:
C8000-C9FFF D4000–D5FFF
CA000–CBFFF D6000–D7FFF
CC000–CDFFF D8000–D9FFF
CE000–CFFFF DA000–DBFFF
D0000–D1FFF DC000–DDFFF
D2000–D3FFF DE000–DFFFF
The BIOS/MMIO address selected must not be assigned
for use by any other NIC or device and cannot be the
same as the RAM address for this NIC. If a system
resource conflict exists, you may have to change the
settings of other NICs or devices that are in your PC.
Configuration Options 5-9

Shared RAM Page Size and Address Range

There are 22 possible blocks of memory available
for accessing the RAM located on the 3C319 NIC.
The factory default RAM size and address location
for the 3C319 NIC, which support RAM paging, are
16 KB / D8000–DBFFF.
RAM paging allows the software to access all 64 KB of
RAM on the 3C319 NIC one page (16 KB) at a time,
while using only 16 KB of PC memory space. RAM
paging is available for all 16 KB address ranges.
5-10 CHAPTER 5: CONFIGURING THE NIC MANUALLY
If a conflict exists, you may have to change the settings of other NICs or adapters that are in your PC. The 22 RAM address ranges are as follows, with the default in bold:
8 KB / C8000–C9FFF 8 KB / DE000–DFFFF 8 KB / CA000–CBFFF 16 KB / C8000–CBFFF 8 KB / CC000–CDFFF 16 KB / CC000–CFFFF 8 KB / CE000–CFFFF 16 KB / D0000–D3FFF 8 KB / D0000–D1FFF 16 KB / D4000–D7FFF 8 KB / D2000–D3FFF 16 KB / D8000–DBFFF 8 KB / D4000–D5FFF 16 KB / DC000–DFFFF 8 KB / D6000–D7FFF 32 KB / C8000–CFFFF 8 KB / D8000–D9FFF 32 KB / D0000–D7FFF 8 KB / DA000–DBFFF 32 KB / D8000–DFFFF 8 KB / DC000–DDFFF 64 KB / D0000–DFFFF

Interrupt Request Level

A 3C319 NIC can operate on one of four interrupt levels for IBM mode (2 [9], 3, 6, or 7), or one of eight interrupt levels for 3Com mode (2 [9], 3, 5, 6, 7, 10, 11, or 15).
The default interrupt level is 2, but the 3C319 NIC can operate on any of the levels if necessary. If a conflict continues, you may have to change the setting of other NICs or devices that are in your PC.
Other Configuration Options
The Configuration and Diagnostic Program also allows the selection of the following additional parameters.
3Com recommends that you avoid changing these configuration settings.
Memory Mode —Allows operation with 8-bit or 16-bit memory interfaces. The default is 16-bit, but the 8-bit option is provided for backward compatibility with older PCs. The Parallel Tasking feature is disabled in 8-bit mode.
I/O Mode —Allows operation with 8-bit or 16-bit I/O interfaces. The default is 16-bit, but the 8-bit option is provided for backward compatibility with older PCs.
Configuration Options 5-11
IRQ Driver Type —Provides a choice of IRQ signal drivers
to the ISA bus. The level-sensitive type relies on the
motherboard circuitry for reliable operation and allows
shared interrupts. Edge triggering is a more robust
technique because it is independent of motherboard
circuitry, but does not allow shared interrupts. The default
is edge-triggered.
AutoSwitch —When enabled, allows installation of
the 3C319 NIC in an EISA PC by the EISA configuration
utility without running the 3TRDIAG program first. The
default is disabled. Do not enable AutoSwitch if you
installed the 3C319 NIC in an ISA PC.
Boot PROM —When enabled, allows the PC to boot
from a server. The default is disabled.
Zero Wait State —When enabled, allows the PC to
communicate with the 3C319 NIC more quickly. Some
PCs may not operate correctly with this option enabled.
The option can be disabled to solve this problem. The
default is enabled.
INSTALLING A NETWORK
6
DRIVER FOR WINDOWS NT
This chapter describes how to install the NDIS 4
driver for the TokenLink Velocity ISA (3C319) NIC in
Windows NT environments. The NDIS 4 driver conforms
to Microsoft’s latest NDIS 4.0 miniport specification and
provides the following features:
DynamicAccess Class of Service
Auto ring speed detection
Promiscuous mode
The 3C319 NIC NDIS 3 full MAC driver, which is
compatible with Microsoft’s earlier NDIS 3.x specification,
is available on TokenDisk diskette #1 in the \WINNT
subdirectory. However, the features listed above are
available only with the NDIS 4 driver.
Explicit instructions for installing the NDIS 3 driver are
no longer provided in this guide because that driver has
been superseded by the NDIS 4 driver, which provides
additional features such as DynamicAccess Class
of Service.
If you still want to load the NDIS 3 driver, follow the
instructions provided in this guide for the NDIS 4 driver.
When directed to insert TokenDisk diskette #2 (containing
the NDIS 4 driver), you should instead insert TokenDisk
diskette #1, which contains the NDIS 3 driver. In all other
respects, the instructions for installing the NDIS 4 driver
and NDIS 3 driver are nearly identical.
6-2 CHAPTER 6: INSTALLING A NETWORK DRIVER FOR WINDOWS NT

Before Installing the Driver

Before installing the driver, make sure that Windows NT is installed and that the following procedures have been completed:
The 3C319 NIC has been installed as described in
Chapter 2.
Plug and Play (PnP) has been manually disabled
as described in Chapter 5, “Configuring the
NIC Manually.”
Windows NT versions 3.51 and 4.0 are not PnP-enabled.
The NIC has been manually configured as described
in Chapter 5, “Configuring the NIC Manually.”
If your network environment uses the TCP/IP communications protocol, you must obtain from your network administrator all the information you will need to define an IP address during the installation process.

Installing the NDIS 4 Driver for Windows NT

This section describes installing the 3C319 NIC NDIS 4 driver for the following Microsoft Windows NT versions:
Windows NT 3.51
Windows NT 4.0

Windows NT 3.51

Follow these steps to install the NDIS 4 driver for Windows NT 3.51:
1 Insert TokenDisk diskette #2 in the floppy drive. 2 In the Main group, double-click the Control
Panel icon.
3 In the Control Panel group, double-click the
Network icon.
4 In the Network Settings dialog box, click
Add Adapter.
Installing the NDIS 4 Driver for Windows NT 6-3
5 In the Add Network Adapter dialog box, scroll to
the bottom of the Network Adapter Card selection
list. Select <Other> Requires disk from manufacturer. 6 Click Continue. 7 Type the following path at the prompt:
a:\
This path identifies the location of the NDIS 4
OEMSETUP.INF file for Windows NT 3.51.
8 Click OK to select the NIC.
The driver files are copied to the C: drive. A prompt
appears, asking if you want to restart your computer.
9 Remove the TokenDisk diskette and click
Restart now.
This completes the installation.
Auto ring speed detection is automatically enabled when
you install the NDIS 4 driver for Windows NT. If you want
to disable auto ring speed detection, see “Auto Ring
Speed Detection” in Chapter 7.
The DynamicAccess Class of Service feature is disabled
by default when you install the NDIS 4 driver for
Windows NT. To activate Class of Service, see Chapter 7,
“Configuring DynamicAccess Class of Service.”

Windows NT 4.0

Follow these steps to install the 3Com NDIS 4 driver for
Windows NT 4.0:
1 In the My Computer group, double-click the
Control Panel icon. 2 In the Control Panel group, double-click the
Network icon. 3 In the Network dialog box, click the Adapters tab. 4 In the Adapters tab, click Add.
6-4 CHAPTER 6: INSTALLING A NETWORK DRIVER FOR WINDOWS NT
5 In the Select Network Adapter dialog box, click
Have Disk.
The Insert Disk dialog box appears.
6 Insert TokenDisk diskette #2 in the floppy drive. 7 Type the following path and click OK:
a:\
This path identifies the location of the NDIS 4 OEMSETUP.INF file for Windows NT 4.0.
The Select OEM Option dialog box appears.
8 Select 3Com TokenLink Velocity ISA (3C319) Adapter
and click OK.
9 Verify that 3Com TokenLink Velocity ISA (3C319)
Adapter appears in the list in the Network Adapters tab and click Close.
If your network environment uses the TCP/IP communications protocol, the Microsoft TCP/IP Properties dialog box will be displayed. You must obtain from your network administrator all the information you need to define an IP address during the installation process. Continue once you have defined the NIC to TCP/IP.
Bindings messages appear, followed by a prompt to restart the computer.
10 Remove TokenDisk diskette #2 from the
floppy drive.
11 Click Yes to restart the computer.
This concludes the procedure for installing the NDIS 4 driver for Windows NT 4.0.
Auto ring speed detection is automatically enabled when you install the NDIS 4 driver for Windows NT. If you want to disable auto ring speed detection, see “Auto Ring
Speed Detection” in Chapter 7.
The DynamicAccess Class of Service feature is disabled by default when you install the NDIS 4 driver for Windows NT. To activate Class of Service, see Chapter 7,
“Configuring DynamicAccess Class of Service.”
CONFIGURING
7
DYNAMICACCESS CLASS OF SERVICE
This chapter describes enabling and configuring
DynamicAccess Class of Service support for
Windows 95 and Windows NT.
The DynamicAccess Class of Service feature lets you select
critical applications for high-priority network access.
Class of Service prioritization allows stations running
critical applications under Windows 95 or Windows NT
to access network bandwidth before other stations. The
NDIS 4 driver requests a priority token when the selected
applications transmit data.
DynamicAccess Class of Service is only available with the
3C319 NIC NDIS 4 driver. This feature is not available with
other 3C319 NIC drivers.
The DynamicAccess Class of Service feature is disabled
by default; if you want to take advantage of this feature,
you must manually enable it after installing the
NDIS 4 driver.
Before Starting Configuration
The 3C319 NIC must be installed and configured
before you configure DynamicAccess Class of Service.
For installation instructions, see Chapter 2, “Installing the
3C319 NIC.” If your operating system does not
automatically detect and configure the NIC, you must
configure the NIC manually. See Chapter 5, “Configuring
the NIC Manually,” for instructions.
The NDIS 4 driver must also be installed before you
configure DynamicAccess Class of Service. For installation
instructions, see Chapter 4, “Installing a Network Driver
for Windows 95,” or see Chapter 6, “Installing a Network
Driver for Windows NT.”
7-2 CHAPTER 7: CONFIGURING DYNAMICACCESS CLASS OF SERVICE
Finally, you must also have installed the appropriate applications that you want to prioritize.

Activating Class of Service

To select Class of Service applications in a Windows 95 or Windows NT environment, follow these steps:
1 In the Control Panel group, double-click the
Class of Service icon.
The Supported Applications tab of the 3Com Class of Service Setup screen appears, as shown in Figure 7-1.
Figure 7-1 3Com Class of Service Setup Screen
2 Click Enable in the Class of Service box.
The default mode is Disable.
Adding Class of Service Ranges and Protocols 7-3
3 Click the boxes next to the appropriate
application names for which you want to
activate Class of Service.
For the NDIS 4 driver to recognize high-priority network
traffic, it must know if a stream of network traffic was
generated by a given application.
If an application is not listed here, you can obtain
the necessary information from the application’s
manufacturer and manually enter the information in
the Additional Ranges tab.
4 Click OK.

Adding Class of Service Ranges and Protocols

You can add information for Class of Service applications
that you want to prioritize but which are not listed on
the 3Com Class of Service Setup screen (Figure 7-1).
You must specify port or socket ranges as well as the
network protocol being used. Obtain the information
from the application manufacturer. The Class of Service
network driver uses these ranges to determine whether a
packet should be treated as high-priority.
To add the Class of Service ranges and protocols, follow
these steps:
1 Click the Additional Ranges tab.
The Class of Service Additional Ranges screen appears,
as shown in Figure 7-2.
c
7-4 CHAPTER 7: CONFIGURING DYNAMICACCESS CLASS OF SERVICE
Figure 7-2 Initial Class of Service Additional Ranges Screen
2 Enter the beginning of the port or socket range for
the application in the Range Start box.
The range start should be a hexadecimal value with a maximum of four digits.
3 Enter the inclusive range end value of the port
or socket range for the application in the Range End box.
The range end should be a hexadecimal number with a maximum of four digits. If only one port or socket is needed, Range End should match Range Start.
4 Select the protocol that the application uses.
This can be TCP, UDP, or IPX. Some applications support multiple protocols and have port or socket ranges for each protocol. In this case, the range or protocol must match the protocol on the PC.
Using Class of Service Advanced Options 7-5
For example, if only TCP/IP is installed, do not enter
the socket range for IPX, as it will adversely affect
driver performance.
5 Once the Range Start, Range End, and Protocol are
entered press Add.
The range is added to the list, as shown in Figure 7-3.
c
Figure 7-3 Class of Service Additional Ranges Screen with
Added Ranges
6 Click OK when you are finished.
To remove a range, select the range in the list and
click Remove.

Using Class of Service Advanced Options

You can use Class of Service Advanced Options to
adjust the network driver’s handling of certain types of
Class of Service traffic. In general, you do not need to
change these values. Contact your network administrator
before using these options.
7-6 CHAPTER 7: CONFIGURING DYNAMICACCESS CLASS OF SERVICE

Accessing Class of Service Advanced Options

To access the advanced options, follow these steps:
1 To display the Class of Service Advanced Options
screen, click the Advanced Options tab.
The Class of Service Advanced Options screen appears, as shown in Figure 7-4.
Figure 7-4 Class of Service Advanced Options Screen
2 Enter new information as required. 3 Click OK to set the new value. 4 Reboot the system to activate changes.
Using Class of Service Advanced Options 7-7

Class of Service Advanced Options Settings

This section provides a detailed description of each
Advanced Values field shown on the Class of Service
Advanced Options screen (Figure 7-4).
The Advanced Options section of the Class of Service
Advanced Options Screen shown in lower part of
Figure 7-4 is not currently available for token ring
installations.
FIFO Packet Threshold
This setting controls the number of non–Class of Service
packets the network driver will allow in the FIFO ahead
of any Class of Service packets. A smaller number
decreases the time between Class of Service packets
but can adversely affect performance. A value of 12
is recommended.
Concurrent UDP Streams
This option controls the number of simultaneous
multimedia UDP packet streams the network driver can
handle at any time. For many applications, the number of
UDP streams is the same as the number of connections.
For example, for videoconferencing with three people,
applications use three UDP streams for the video data.
The value must be a power of two (2, 4, 8) but the
optimal value may vary depending on the PC and
application.
A video server may support 32 connections, but a client
may only want to conference with four other people at
a time.
A value of 16 is recommended for most applications.
Low-Priority Ratio
When Class of Service support is enabled, high-priority
packets are always transmitted before low-priority
packets. If a certain high-priority application sends out
enough packets, no low-priority packets may be sent.
7-8 CHAPTER 7: CONFIGURING DYNAMICACCESS CLASS OF SERVICE
To prevent this problem, the driver uses a ratio value to periodically send out a low-priority packet (if one is waiting to be sent).
For example, if a value of 1000 is entered, one low-priority packet would be sent for every 1000 high-priority packets. A value of 25 is recommended for most applications.
Natural Packet Interval
This field is not applicable for token ring installations. Any value entered in this field is ignored.
Disable Switch Packet Prioritization
This option is not currently enabled for token ring installations. Any setting is ignored.
Disable Receive Packet Buffering
This option is not currently enabled for token ring installations. Any setting is ignored.

Auto Ring Speed Detection

An alternative way to access DynamicAccess Class of Service is to click the Properties button with the 3C319 NIC selected while you are viewing the adapters list. Using this method also allows you to disable or enable the auto ring speed detection option.
The auto ring speed detection option permits the NDIS 4 driver for Windows 95 and Windows NT to detect and operate at the current ring data rate. Auto ring speed detection is automatically enabled when you load the NDIS 4 driver. (This feature is not available with other 3C319 NIC drivers.)
To manually set the ring speed after disabling auto ring speed detection, see “Changing Confi
Settings” in Chapter 5.
guration Option
Auto Ring Speed Detection 7-9
The access paths for auto ring speed detection and
DynamicAccess Class of Service through the Properties
button are slightly different for Windows 95 and
Windows NT. The following procedures describe the
different paths.
Using Windows 95 to Access Auto Ring Speed Detection
To access the auto ring speed detection option in a
Windows 95 environment, follow these steps:
1 In the My Computer group, double-click the
Control Panel icon. 2 In the Control Panel group, double-click the
System icon. 3 In the System Properties dialog box, click the
Device Manager tab. 4 In the Device Manager tab, double-click Network
adapters. 5 Select 3Com TokenLink Velocity ISA (3C319) Adapter
and click Properties.
The 3Com TokenLink Velocity ISA (3C319) Adapter
dialog box appears, as shown in Figure 7-5.
Figure 7-5 3Com TokenLink Velocity ISA Adapter Dialog Box
The 3Com TokenLink Velocity ISA (3C319) Adapter
dialog box provides you with an alternative method of
accessing DynamicAccess Class of Service. To access the
3Com Class of Service Setup screen (shown in Figure 7-1),
click the Priority button.
7-10 CHAPTER 7: CONFIGURING DYNAMICACCESS CLASS OF SERVICE
Using Windows NT to Access Auto Ring Speed Detection
To access the auto ring speed detection option and DynamicAccess Class of Service applications in a Windows NT environment, follow these steps:
1 In the My Computer group, double-click the
Control Panel icon.
2 In the Control Panel group, double-click the
Network icon. 3 In the Network dialog box, click the Adapters tab. 4 In the Adapters tab, select 3Com TokenLink Velocity
ISA (3C319) Adapter and click Properties.
The 3Com TokenLink Velocity ISA (3C319) Adapter
dialog box appears, as shown in Figure 7-5.
The 3Com TokenLink Velocity ISA (3C319) Adapter
dialog box provides you with an alternative method of
accessing DynamicAccess Class of Service. To access the
3Com Class of Service Setup screen (shown in Figure 7-1),
click the Priority button.

Disabling Auto Ring Speed Detection

The 3Com TokenLink Velocity ISA (3C319) Adapter
dialog box (Figure 7-5) lets you disable or enable auto
ring speed detection.
Auto ring speed detection is automatically enabled when
you load the NDIS 4 driver. When enabled, the Auto Ring
Speed Detect option is checked. To disable the option
follow these steps:
1 In the 3Com TokenLink Velocity ISA (3C319)
Adapter dialog box (Figure 7-5), click the marked
Auto Ring Speed Detect check box to clear it.
The check box toggles between enabled (checked) and
disabled (cleared).
2 Click OK.
Setting a Locally Administered Network Address 7-11

Setting a Locally Administered Network Address

The 3Com TokenLink Velocity ISA (3C319) Adapter dialog box (Figure 7-5) lets you manually set a locally administered address (LAA). In most cases, you use a preset NIC address and leave this field blank. Check with your network administrator before using this feature.
To set a locally administered address, follow these steps:
1 With the 3Com TokenLink Velocity ISA (3C319)
Adapter dialog box displayed (Figure 7-5), type a valid 12-digit address in the Network Address (LAA) field.
A valid 12-digit hexadecimal value falls within the following range (400000000000h to 7FFFFFFFFFFFh)
2 Click OK.
MANUALLY INSTALLING
8
MISCELLANEOUS NETWORK DRIVERS
This chapter provides instructions for manually installing the following network software drivers:
NetWare DOS ODI client driver
NetWare server driver
If you followed the procedures in Chapter 3, “Installing
NetWare DOS Clients Automatically,” and the
configuration was successful, you should not use the procedures in this chapter.
In addition, this chapter provides instructions for locating online installation information for the following network drivers:
NetWare OS/2 ODI driver
NDIS 2.01 driver
Windows for Workgroups drivers
This chapter also provides information about obtaining and using IBM drivers, and about using Remote Program Load (RPL) to obtain boot images from various network operating system providers.

Examining Driver Files on the TokenDisk Diskettes

Two TokenDisk diskettes with network drivers are shipped with the 3C319 NIC. The following sections describe the contents of each diskette.
8-2 CHAPTER 8: MANUALLY INSTALLING MISCELLANEOUS NETWORK DRIVERS

TokenDisk Diskette #1 Contents

TokenDisk diskette #1 includes the following
network drivers:
NetWare DOS ODI driver (3CTOKEN.COM)
NetWare OS/2 ODI driver (3CTOKEN.SYS)
NetWare server driver (3CTOKEN.LAN)
NDIS 2.01 DOS driver (TLNK3.DOS)
NDIS 2.01 OS/2 driver (TLNK3.OS2)
Use the NDIS 2.01 driver for the following network operating systems:
IBM LAN Server
Banyan VINES
DEC
Artisoft LANtastic/AI
Microsoft LAN Manager
NDIS 3.0 full MAC driver for Windows NT
PATHWORKS
(TLNKV.SYS), Windows 95 (TLNKV.VXD), and Windows for Workgroups (TLNK3.386)
Explicit instructions for installing the NDIS 3 driver
are no longer provided in this guide because that
driver has been superseded by the NDIS 4 driver, which
provides additional features such as DynamicAccess
Class of Service.
If you still want to load the NDIS 3 driver, follow the
instructions provided in this guide for the NDIS 4
driver. When directed to insert TokenDisk diskette #2
(containing the NDIS 4 driver), you should instead insert
TokenDisk diskette #1, which contains the NDIS 3 driver.
In all other respects, the instructions for installing the
NDIS 4 driver and NDIS 3 driver are nearly identical.

TokenDisk Diskette #2 Contents

TokenDisk diskette #2 contains the NDIS 4 miniport driver for Windows 95 and Windows NT. This driver is enabled for DynamicAccess Class of Service. Follow the instructions in Chapter 4, “Installing a Network Driver for
Windows 95,” or Chapter 6, “Installing a Network Driver for Windows NT,” to install this driver.
To obtain drivers for network operating systems not included on the TokenDisk diskettes, contact the network operating system (NOS) manufacturer or use the IBM drivers supplied with the NOS.
For a list of supported drivers, software driver updates, and patches for the drivers on the TokenDisk diskettes, refer to the 3Com online delivery services listed in
Appendix B, “Technical Support.”

Before Installing Drivers

The 3C319 NIC must be installed in the PC, as described in Chapter 2, “Installing the 3C319 NIC.”
Before Installing Drivers 8-3
The drivers described in this chapter are not PnP-enabled. Before installing a driver, be sure to disable PnP and manually configure the NIC using the procedures described in Chapter 5, “Configuring the
NIC Manually.”

Installing the Client Driver for NetWare

If you did not use the AutoLink configuration utility, follow these steps to install the DOS ODI client driver for NetWare:
1 Make sure the 3C319 NIC is configured as described
in Chapter 5, “Configuring the NIC Manually.” 2 Start the Install program on TokenDisk diskette #1. 3 From the main menu shown in Figure 8-1, select
Driver Installation and Update... and press [Enter].
8-4 CHAPTER 8: MANUALLY INSTALLING MISCELLANEOUS NETWORK DRIVERS
ESC=Cancel F1=Help
TokenDisk-3C319 TokenLink Velocity ISA NIC v.4.0
MAIN MENU
Installation Tips <ReadMe> ... Microsoft Windows Information AutoLink Auto Configure 3Com ISA NIC Driver Installation and Update ... Configuration and Diagnostic Program NIC (Network Interface Card) Release Notes
Instructions for installing 3Com NIC drivers for popular NOSs
(C) Copyright 1996, 3Com Corporation. All Rights Reserved.
[ENTER]=Execute Function [
↑↓
]=Scroll
[F1]=Help [ESC]=<Cancel>
Figure 8-1 Main Menu with Driver Installation and Update Selected
4 Select Install Novell NetWare Driver, as shown in
Figure 8-2, and press [Enter].
ESC=Cancel F1=Help
TokenDisk-3C319 TokenLink Velocity ISA NIC v.4.0
NETWORK DRIVERS
(C)
Install Novell NetWare Driver ... NDIS Driver Installation and Information ... Display Software Compatibility Information
Copy drivers for DOS and OS/2 clients and V3.12, and V4.10 servers.
Copyright 1996, 3Com Corporation. All Rights Reserved.
[ENTER]=Execute Function [
↑↓
]=Scroll
[F1]=Help [ESC]=<Cancel>
Figure 8-2 Network Drivers Menu
Installing the Client Driver for NetWare 8-5
5 When the NetWare Driver screen appears, select
Copy DOS ODI Client Driver.
6 At the prompt, accept the \NWCLIENT directory as
the default for the destination of the driver, or
enter a new path.
The NetWare driver and NET.CFG file are copied to
your PC.
7 Exit to DOS. 8 Edit the AUTOEXEC.BAT file and add the
following lines:
C:\
path
\LSL
path path path
\3CTOKEN \IPXODI \VLM
C:\
C:\
C:\
F:
LOGIN
C: \ path\ is the directory you choose for the NetWare
client files and the DOS ODI driver. Use the latest Novell
files from the Novell forum on the CompuServe site or
from your authorized reseller.
9 Edit your CONFIG.SYS file and include these
statements:
Files= <value>
Buffers= <value>
Lastdrive= Z
Novell recommends that <value> be at least 20 for
each statement.
10 Remove TokenDisk diskette #1 from the
floppy drive.
11 Reboot your PC.
This completes the manual NetWare DOS ODI client
driver installation.
8-6 CHAPTER 8: MANUALLY INSTALLING MISCELLANEOUS NETWORK DRIVERS

Installing the OS/2 Network Driver for NetWare

TokenDisk diskette #1 includes the Novell NetWare OS/2 ODI driver (\NWCLIENT\3CTOKEN.SYS). The \HELP\NWOS2ODI.TXT file includes instructions for installing this driver.

Installing the Server Driver for NetWare

The NW410 directory on TokenDisk diskette #1 includes the driver and files for Novell NetWare 3.12 and 4.x servers. Refer to Novell documentation for instructions on using the INSTALL.NLM file to install the drivers for the 3C319 NIC, or follow the instructions provided under the Installation Tips <Readme> menu option on the main menu, shown in Figure 8-1.

Installing the NDIS 2.01 Driver

Select Installation Tips <Readme> on the main menu shown in Figure 8-1 for instructions on installing the NDIS 2.01 driver in supported network operating systems.
Instructions are included for using TokenDisk diskette #1 as an automatic OEM import disk for IBM LAN Server, Microsoft LAN Manager, Microsoft Windows for Workgroups, and other network operating systems.

Installing a Driver for Windows for Workgroups

This section describes how to use the Help program on TokenDisk diskette #1 to view driver installation instructions for:
NetWare client PCs running Windows for Workgroups
PCs running Windows for Workgroups and using the
NDIS 3 protected-mode driver
PCs running Windows for Workgroups and using the
NDIS 2 real-mode driver
Installing a Driver for Windows for Workgroups 8-7

Before Installing the Driver

Before installing the driver, make sure that the following
procedures have been completed:
The 3C319 NIC has been installed as described in
Chapter 2.
Plug and Play (PnP) has been manually disabled
as described in Chapter 5, “Configuring the
NIC Manually.”
Windows for Workgroups is not a PnP-enabled
operating system.
The NIC has been manually configured as described
in Chapter 5, “Configuring the NIC Manually.”

Viewing the Driver Installation Instructions

Follow these steps to view the instructions:
1 Exit to the DOS prompt. 2 Insert TokenDisk diskette #1 in drive A and type at
the prompt:
a:\help [Enter]
3 From the main Help menu, select Windows and
press [Enter]. 4 From the Windows Help menu, select one of the
following and press [Enter]:
NDIS 3 (protected-mode driver)
NDIS 2 (real-mode driver)
NetWare (real-mode driver)
When using non-Novell protocol stacks (for example,
Microsoft IPX protocol stacks with the NetWare client
driver), you must disable the Parallel Tasking feature of
the 3C319 NIC. The procedure is described in the
NetWare (real-mode driver) Help file.
To complete the installation, follow the directions on
the screen.
8-8 CHAPTER 8: MANUALLY INSTALLING MISCELLANEOUS NETWORK DRIVERS

Using IBM Drivers

Since the 3C319 NIC is fully IBM-compatible you can use drivers for IBM 16/4 Token Ring Adapters.
Obtain IBM token ring drivers for the 3C319 NIC in one of the following ways:
Copy the IBM 16/4 Token Ring Adapter drivers
supplied with your network operating system.
Use the IBM 16/4 Token Ring Adapter drivers in IBM’s
LAN Support Program version 1.2 or later.
With IBM drivers, use only IBM-compatible settings.
To use the IBM 16/4 Token Ring Adapter drivers supplied with your network operating system, copy them to your PC and follow the instructions that accompany the network operating system.

Using Remote Program Load (RPL)

The Remote Program Load capability included with the 3C319 NIC allows you to load boot images from Novell NetWare, IBM LAN Server, Microsoft LAN Manager, and Banyan VINES servers.
If RPL is enabled on the NIC and on the network server, the PC can boot from a server on the token ring network using the configured NIC. This eliminates the need to use local drives or diskettes.
RPL can be disabled to allow the PC to boot from its hard disk using 3Com’s 3TRDIAG program. You can also use IBM’s installation and RPL operation documentation for 3C319 NIC procedures.
The RPL capability can only be used with:
I/O base addresses A20h or A24h
Shared RAM address D8000
BIOS/MMIO address CC000
IRQs 2, 3, 6, or 7
RPL is not supported on the 3C319 NIC in an EISA PC
with the AutoSwitch function enabled.

Before Using RPL

To use RPL, enable the boot PROM feature on the NIC
and use the procedures that follow.
Refer to your network operating system documentation
for instructions on how to create a boot image that loads
the IBM token ring driver.

Enabling RPL

The following procedure explains how to enable RPL.
Refer to your network operating system documentation
for network procedures and for information on drivers
that you can load with RPL.
Using Remote Program Load (RPL) 8-9
1 Boot your PC under DOS. 2 Insert the backup copy of TokenDisk diskette #1 in a
floppy drive. 3 At the prompt, type:
3trdiag [Enter]
4 From the Install pull-down menu, select
Configure NIC.
5 Using the arrow keys, select Boot PROM. 6 Press [Enter] and select Enable. 7 Press [Enter]. 8 Select OK and press [Enter] to save the setting. 9 Remove the diskette from the drive and reboot
the PC.
If your PC has a hard drive, the following message
appears on your screen:
Type H to boot from the hard disk
8-10 CHAPTER 8: MANUALLY INSTALLING MISCELLANEOUS NETWORK DRIVERS
10 Type H to boot your PC from your local hard
disk. Otherwise, the PC will boot from the network server.

Disabling RPL

To disable RPL, use the following procedure:
1 Boot your PC under DOS. 2 Insert the backup copy of TokenDisk diskette #1 in a
floppy drive.
3 At the prompt, type:
3trdiag [Enter]
4 From the Install pull-down menu, select
Configure NIC.
5 Using the arrow keys, select Boot PROM. 6 Press [Enter], and select Disable. 7 Press [Enter]. 8 Select OK and press [Enter] to save the setting. 9 Remove the diskette from the drive and reboot
the PC.
TROUBLESHOOTING
9
This chapter describes how to isolate and solve
3C319 NIC hardware and network cabling problems
in the following sections:
3C319 NIC LEDs
Using the Configuration and Diagnostic Program
Diagnostic Test Types
Troubleshooting Tips

3C319 NIC LEDs

Light-emitting diodes (LEDs) on the backplate of the
3C319 NIC, shown in Figure 9-1, indicate the configured
ring speed and whether or not the 3C319 NIC is
inserted into the ring. The LEDs also light when drivers
are loading and when the diagnostics program is running.
NIC INSTALLATION
4 Mbps
4
Figure 9-1 NIC LEDs
16
16 Mbps
9-2 CHAPTER 9: TROUBLESHOOTING NIC INSTALLATION
When the green LED (labeled “4”) is lit, it indicates that the 3C319 NIC is set to 4 Mbps speed and is correctly inserted into the token ring network.
When the yellow LED (labeled “16”) is lit, it indicates that the 3C319 NIC is set to 16 Mbps and is correctly inserted into the token ring network.
Using the Configuration and Diagnostic Program
You can run the Configuration and Diagnostic Program on TokenDisk diskette #1 to test the setup or configuration and test for physical board problems.
The diagnostic program tests the 3C319 NIC, not the network. Boot from DOS before running the diagnostic program. Connect the 3C319 NIC to the network for all diagnostic tests.
The Configuration and Diagnostic Program is a DOS application that does not function properly if the 3C319 NIC drivers are already installed. The program also indicates memory conflicts if you run it with a memory manager without excluding the memory range used by the 3C319 NIC. You must bypass the drivers and the memory manager before you run the diagnostic program. Use a DOS diskette if you are running DOS 5.0 or earlier.
If you are running Windows NT, boot from the DOS partition or boot from a DOS diskette to run the diagnostic program. If you use Windows 95 or Windows for Workgroups, exit Windows and restart the PC in MS-DOS mode, or boot from a floppy that has the operating system installed on it.

Diagnostic Test Types

There are two groups of Configuration and Diagnostic Program tests.
A lobe cable must be connected from the 3C319 NIC to a retiming concentrator or MAU for all Group 1 tests. A lobe cable is the section of cable that attaches a ring station or network device to a MAU or wiring hub.

Group 1 Diagnostics

Group 1 diagnostics test physical components,
connectors, and circuitry of the 3C319 NIC as follows.
MMIO Register Write/Read Test
This test verifies that the PC can access the 3C319 NIC’s
memory mapped I/O registers correctly.
Boot PROM Test
This test verifies that the PC can access the boot PROM
correctly and verifies the integrity of the boot PROM.
AIP Checksum Test
This test verifies that the 3C319 NIC’s node ID, channel
identifier, and supported function identifiers such as data
rate, shared RAM, and transmit buffer size are correct.
Shared RAM Boundary/Domain Test
This test verifies that the shared RAM base address is
aligned on the proper address boundary according to the
shared RAM page size setting and verifies that its domain
does not conflict with that of the 3C319 NIC ROM.
Diagnostic Test Types 9-3
Shared RAM Write/Read Test
This test verifies that the PC can correctly access the total
64 KB of available shared RAM.
Timer Test
This test verifies the 3C319 NIC’s timer operations by
comparing the 3C319 NIC timing to the PC’s timing.
Open NIC for Ring Operation Test
This test prepares the 3C319 NIC for a NIC ring operation
test and verifies the 3C319 NIC’s ability to transmit data
over the network. This test requires you to connect to an
STP or a UTP cable with a DAU, MAU, CAU, or token
ring switch at the other end.
9-4 CHAPTER 9: TROUBLESHOOTING NIC INSTALLATION
Ring Operations Test
This test assesses communication on the ring. The 3C319 NIC must be attached to the ring to run this test successfully. The 3C319 NIC also must be set to the correct ring speed. Note that this test always fails when you are using a Dedicated Token Ring (DTR) hub.
Close NIC Test
This test verifies the 3C319 NIC’s ability to close the 3C319 NIC and terminate the Ring Operations Test. The 3C319 NIC must have been previously opened.

Group 2 Diagnostic

The Group 2 diagnostic test (NIC Wrap Test) causes all user-transmitted data to be sent and received without going to the network.
A lobe cable must be connected from the selected 3C319 NIC to a retiming concentrator or MAU for the Group 2 test. A lobe cable is the section of cable that attaches a ring station or network device to a MAU or wiring hub.

Running the Diagnostic Tests

The Configuration and Diagnostic Program can be started from the menus or the DOS command line. For command line instructions, see the INSTRUCT.TXT file in the \HELP subdirectory on TokenDisk diskette #1.
1 Insert TokenDisk diskette #1 in the floppy drive
and type:
a:\ [Enter]
2 To start the diagnostic program, type:
3trdiag [Enter]
The Configuration and Diagnostic Program main window appears, as shown in Figure 9-2.
3 Use the arrow keys to select the Test pull-down
menu shown in Figure 9-2.
Diagnostic Test Types 9-5
Quit View Select F1=Help
Diagnostic and Manual Configuration Program Version 2.0
Install
Test
Run Tests... (F5) Test Setup... (F6) Echo Server... (F7)
Selected NIC
3Com 3C319: Token Ring Address = 00608C112233
TokenLink Velocity 16/4 16-bit ISA NIC
[ENTER]=Run the Diagnostic Tests [Alt]+<Highlighted Key>=Execute Function [ [F1]=Help [F3]=Exit [F4]=Configure NIC [F6]=Test Setup
↑↓
]=Scroll
Figure 9-2 Configuration and Diagnostic Program Main Window
4 Select Run Tests.
The Run Tests dialog box appears, similar to the one
shown in Figure 9-3.
Diagnostic and Manual Configuration Program Version 2.0
InstallQuit View Select
Group 1 Tests MMIO Register Write/Read Test AIP Checksum Test Shared RAM Boundary/Domain Test Shared RAM Write/Read Test Timer Test Open NIC for Ring Operation Test Ring Operations Test Close NIC Test
Waiting for <Start>
Start
Continue
Test
3Com 3C319 Token Ring Address = a312240b00a0
Run
Test Results
Repetitions Completed Results
0 0 0 0 0 0 0 0
F1=Help
Not Tested Not Tested Not Tested Not Tested Not Tested Not Tested Not Tested Not Tested
Pass 0 of 1
Test Setup... Zoom... Stats... File Options...
Cancel
[ENTER]=<Start> Begin Diagnostic Tests [Alt]+<Highlighted Key>=Execute Function [TAB]=Next Field [SHIFT+TAB]=Previous Field [F1]=Help [ESC]=Cancel
Figure 9-3 Run Tests Dialog Box
9-6 CHAPTER 9: TROUBLESHOOTING NIC INSTALLATION
5 Press [Enter] to start the tests.
Each test runs once unless you specify otherwise. The test results are displayed on the screen with “Passed” or “Failed” in the Results column.
To run the tests continuously, select the Continuous option in the Test Setup dialog box, as described in the next section, “Changing the Test Setup.”

Changing the Test Setup

To change the test parameters, follow these steps:
1 Select Test Setup in the Run Tests dialog box and
press [Enter].
The Test Setup dialog box appears, as shown in
Figure 9-4.
Diagnostic and Manual Configuration Program Version 2.0
Errors
Test
Test Setup
MMIO Register Write/Read Test AIP Checksum Test Shared RAM Boundary/Domain Test Shared RAM Write/Read Test Timer Test Open NIC for Ring Operation Test Ring Operations Test Close NIC Test
Defaults
File Options... OK Cancel
Group 1 Tests
Enable Group
InstallQuit View Select
Group Select
Group 1 Group 2
Repetitions
(.) [1 ]Times
Continuous
[X] Halt on Error
F1=Help
*Enabled *Enabled *Enabled *Enabled *Enabled *Enabled *Enabled *Enabled
Disable Group
↑↓
]=Select a Test Group to View
[ [Alt]+<Highlighted Key>=Execute Function [TAB]=Next Field [SHIFT+TAB]=Previous Field [F1]=Help [ESC]=<Cancel>
Figure 9-4 Test Setup Dialog Box
2 Press [Tab] to move from field to field and select
any field within the Test Setup dialog box.
Within the Group Select area, use the arrow keys to select Group 1 or Group 2. Use the Enable Group or Disable Group options to enable or disable a group of tests.
For a description of these tests, refer to the online help in the diagnostic program.
3 Select OK and press [Enter].
The Run Tests Dialog box reappears (Figure 9-3).
4 To run the tests, select Start and press [Enter].

Troubleshooting Tips

If a diagnostic test fails, the 3C319 NIC may not be defective. The problem is usually incorrect option settings or option settings that conflict with the settings of other boards, or the 3C319 NIC may be improperly installed.
Windows NT versions 3.51 and 4.0 are not PnP-enabled operating systems. If the network driver fails to load when the 3C319 NIC is installed in a PnP PC, configure the NIC using the Configuration and Diagnostic Program on TokenDisk diskette #1. Follow the procedures in
Chapter 5, “Configuring the NIC Manually,” to disable PnP
for the 3C319 NIC and then configure the NIC.
Troubleshooting Tips 9-7
If a test fails, you can get additional information by highlighting the test that failed in the Run Tests dialog box and pressing [Enter]. You can also highlight the Zoom button and press [Enter]. The program notifies you of the error and suggests actions for solving the problem.
CAUTION: Turn off the power before inserting or removing the 3C319 NIC from the PC.
Follow these steps to isolate the problem further:
1 Seat the 3C319 NIC firmly in the slot. 2 Inspect all cables and connections. 3 Make sure that the LEDs on the 3C319 NIC and the
MAU light, or that the solenoid on the MAU engages.
9-8 CHAPTER 9: TROUBLESHOOTING NIC INSTALLATION
4 Ensure that the settings (memory allocations,
interrupts, etc.) for the 3C319 NIC do not conflict with other devices installed in the PC.
See Table 2-1 for initial settings set by 3Com for configuration options. See Chapter 5, “Configuring the
NIC Manually,” for a description of the settings.
5 Check that the ring speed (4 or 16) matches the
network speed.
Select the View pull-down menu in the Configuration and Diagnostic Program and select NIC Information to view the current 3C319 NIC configuration.
6 If you installed the 3C319 NIC correctly and still
experience problems, review your configuration procedures.
Make sure that you have properly configured your PC for the 3C319 NIC. Refer to Chapter 5, “Configuring the
NIC Manually.”
Make sure that you have installed the correct drivers for your network operating system. Refer to Chapters 4, 6, and 8.
7 Install the 3C319 NIC in another slot and run the
diagnostic tests again to isolate a defective slot.
The slot may be defective. If the 3C319 NIC passes the tests in the second slot, contact the reseller or manufacturer of the PC.
8 Install the 3C319 NIC in another functioning PC and
run the tests again.
Your PC may be defective. If the 3C319 NIC passes the tests in the second PC, contact the reseller or manufacturer of the first PC.
9 Replace the failed 3C319 NIC with a working
3C319 NIC. If the second 3C319 NIC fails, the PC may be defective.
Troubleshooting Tips 9-9
10 Try a different lobe cable. 11 Verify that you have the latest software drivers
from the network vendor for the network operating system (NOS) that you are using.
Press the [F1] key for Help information at any time during operation of the Configuration and Diagnostic Program.
Appendix B, “Technical Support,” contains sources of
online information. In addition, the SYSRESRC.TXT file in the \HELP subdirectory contains information about commonly used interrupts and I/O base addresses.
A
This appendix provides specifications for:
Cabling
Pin assignments

Cabling

The 3C319 NIC supports industry-standard token ring cabling that meets IEEE 802.5 specifications. Use Category 3, 4, or 5 unshielded twisted-pair (UTP) or types 1 or 6 shielded twisted-pair (STP) cabling.

Pin Assignments

The 3C319 NIC can be connected to a network with either a DB-9 or an RJ-45 connector. Figure A-1 and Figure A-2 show the pin assignments for these connectors.

SPECIFICATIONS

A-2 APPENDIX A: SPECIFICATIONS
4
16
6 7 8 9
1 2 3 4 5
RX
TX
RX
TX
8
7 TX 6 RX 5 RX 4 TX 3
2
1
12345678
4 Mbps
16 Mbps
Figure A-1 DB-9 Connector Pin Assignments
Figure A-2 RJ-45 Connector Pin Assignments

TECHNICAL SUPPORT

B
3Com provides easy access to technical support information through a variety of services. This appendix describes these services.
Information contained in this appendix is correct at time of publication. For the very latest, we recommend that you access 3Com Corporation’s World Wide Web site.

Online Technical Services

3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems:
World Wide Web site
3Com Bulletin Board Service (3ComBBS)
3ComFacts
3ComForum on CompuServe online service
SM
automated fax service

World Wide Web Site

Access the latest networking information on 3Com Corporation’s World Wide Web site by entering our URL into your Internet browser:
http://www.3com.com/
This service features the latest information about 3Com solutions and technologies, customer service and support, news about the company, Net Age
®
Magazine, and more.
B-2 APPENDIX B: TECHNICAL SUPPORT

3Com Bulletin Board Service

3ComBBS contains patches, software, and drivers for all 3Com products, as well as technical articles. This service is available through analog modem or digital modem (ISDN) 24 hours a day, 7 days a week.
Access by Analog Modem
To reach the service by modem, set your modem to 8 data bits, no parity, and 1 stop bit. Call the telephone number nearest you:
Country Data Rate Telephone Number
Australia up to 14400 bps 61 2 9955 2073 Brazil up to 14400 bps 55 11 547 9666 France up to 14400 bps 33 1 6986 6954 Germany up to 28800 bps 4989 62732 188 Hong Kong up to 14400 bps 852 2537 5608 Italy (fee required) up to 14400 bps 39 2 27300680 Japan up to 14400 bps 81 3 3345 7266 Mexico up to 28800 bps 52 5 520 7853 P.R. of China up to 14400 bps 86 10 684 92351 Singapore up to 14400 bps 65 534 5693 Taiwan, R.O.C. up to 14400 bps 886 2 377 5840 U.K. up to 28800 bps 44 1442 438278 U.S.A. up to 28800 bps 1 408 980 8204
Access by Digital Modem
ISDN users can dial in to 3ComBBS using a digital modem for fast access up to 56 Kbps. To access 3ComBBS using ISDN, use one of the following numbers:
408 654 2706 or 408 654 2703

3ComFacts Automated Fax Service

3Com Corporation’s interactive fax service, 3ComFacts, provides data sheets, technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.
Call 3ComFacts using your Touch-Tone telephone using one of these international access numbers:
Country Telephone Number
U.K. 44 1442 438279 U.S.A. 1 408 727 7021
Local access numbers are available within the following countries:
Online Technical Services B-3
Telephone
Country
Australia 1800 678 515 Netherlands 06 0228049 Belgium 0800 71279 New Zealand 0800 446 398 Denmark 800 17319 Norway 800 11062 Finland 98 001 4444 Portugal 0505 442 607 France 05 90 81 58 Russia (Moscow only) 956 0815 Germany 0130 81 80 63 Singapore 800 6161 463 Hong Kong 800 933 486 Spain 900 964 445 Italy 1678 99085 Sweden 020 792954 Malaysia 1800 801 777 U.K. 0800 626403
Number
Country
Telephone Number
B-4 APPENDIX B: TECHNICAL SUPPORT

3ComForum on CompuServe Online Service

3ComForum contains patches, software, drivers, and technical articles about all 3Com products, as well as a messaging section for peer support. To use 3ComForum, you need a CompuServe account.
To use 3ComForum:
1 Log on to your CompuServe account. 2 Type go threecom 3 Press [Return] to see the 3ComForum main menu.

Support from Your Network Supplier

If additional assistance is required, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.
When you contact your network supplier for assistance, have the following information ready:
A list of system hardware and software, including
revision levels
Diagnostic error messages
Details about recent configuration changes,
if applicable
If you are unable to contact your network supplier, see the following section on how to contact 3Com.

Support from 3Com

If you are unable to receive support from your network supplier, technical support contracts are available from 3Com.
Contact your local 3Com sales office to find your authorized service provider using one of these numbers:
Regional Sales Office Telephone Number 3Com Corporation
P.O. Box 58145 5400 Bayfront Plaza Santa Clara, California 95052-8145 U.S.A.
3Com Asia Limited
Australia
Hong Kong India Indonesia Japan
Korea Malaysia New Zealand Philippines P.R. of China
Singapore Taiwan, R.O.C. Thailand
3Com Benelux B.V.
Belgium Netherlands
3Com Canada
Calgary Edmonton Montreal Ottawa Toronto Vancouver
3Com France 33 1 69 86 68 00 (continued)
Support from 3Com B-5
800 NET 3Com or 1 408 764 5000 408 764 5001 (fax)
61 2 9937 5000 (Sydney) 61 3 9866 8022 (Melbourne) 852 2501 1111 91 11 644 3974 62 21 572 2088 81 6 536 3303 (Osaka) 81 3 3345 7251 (Tokyo) 82 2 319 4711 60 3 732 7910 64 9 366 9138 632 892 4476 8610 68492568 (Beijing) 86 21 63501581 (Shanghai) 65 538 9368 886 2 377 5850 662 231 8151 5
32 2 725 0202 31 30 6029700
403 265 3266 403 423 3266 514 683 3266 1 613 566 7055 416 498 3266 604 434 3266
B-6 APPENDIX B: TECHNICAL SUPPORT
Regional Sales Office Telephone Number 3Com GmbH
Austria Czech Republic/Slovak Republic Germany (Central European HQ) Hungary Poland Switzerland
3Com Iberia
Portugal Spain
3Com Ireland 353 1 820 7077 3Com Latin America
U.S. Headquarters Northern Latin America Argentina Brazil Chile Colombia Mexico Peru Venezuela
3Com Mediterraneo
Italy
3Com Middle East 971 4 349049 3Com Nordic AB
Denmark Finland Norway Sweden
3Com Russia 007 095 258 09 40 3Com Southern Africa 27 11 807 4397 3Com UK Ltd. 44 131 240 2900 (Edinburgh)
43 1 513 4323 420 2 21845 800 49 30 34 98790 (Berlin) 49 89 627320 (Munich) 36 1 250 83 41 48 22 6451351 41 31 996 14 14
351 1 3404501 34 1 383 17 00
408 326 2093 305 261 3266 (Miami, Florida) 541 312 3266 55 11 5181 0869 562 633 8935 571 629 4110 52 5 520 7841/7847 51 1 221 5399 58 2 953 8122
39 2 253011 (Milan) 39 6 5279941 (Rome)
45 39 27 85 00 358 0 435 420 67 47 22 58 47 00 46 8 632 56 00
44 161 873 7717 (Manchester) 44 162 889 7000 (Marlow)

Returning Products for Repair

Before you send a product directly to 3Com for repair, you must first obtain a Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense.
To obtain an RMA number, call or fax:
Country Telephone Number Fax Number
U.S.A. and Canada 1 800 876 3266,
Latin America 1 408 326 2927 408 764 7120 Europe, South Africa,
and Middle East Elsewhere 1 408 326 2926 1 408 764 7120
option 2
44 1442 438125 44 1442 435822
Returning Products for Repair B-7
408 764 7120

GLOSSARY

3Com mode
A mode of operation for the 3Com TokenLink Velocity ISA network interface card (NIC) that provides increased throughput and expanded configuration options.
CAU
Controlled access unit.
Class of Service
A 3Com DynamicAccess feature that helps to optimize network performance by letting you prioritize your applications for efficient network access. High-priority tokens are requested when the network transmits data for selected applications.
Clean boot
A DOS boot with no memory managers or other programs (such as drivers) loaded in memory.
DAU
Dual access unit.
Driver
A program, usually resident in the server or workstation memory, that controls the network hardware (such as NICs or controllers) or implements the protocol stacks through which higher-level applications communicate with the network hardware.
DTR
Dedicated Token Ring (DTR). An IEEE standard that increases network performance in switched token ring environments. It allows data transmission using dedicated resources between the station and the concentrator. Transmissions can be either half-duplex or full-duplex.
DynamicAccess technology
A 3Com set of features that optimize network performance. (See also Class of Service.)
2 GLOSSARY
EISA
Full-duplex
Hexadecimal
IBM mode
Extended Industry Standard Architecture.
A mode of operation in which a token ring station can simultaneously transmit and receive independent data streams. Dedicated transmissions occur between the station and switch; token passing no longer occurs.
A number system with a base of sixteen. In hexadecimal, the first ten digits are 0–9 and the last six digits are A–F. This number system is identified in this guide by a number or character followed by “h.”
A mode of operation for 3Com TokenLink Velocity ISA NICs with configuration options restricted to the same options provided by IBM 16/4 Token Ring Adapters. Either 3Com or IBM drivers can be used when the NIC is configured in IBM mode.
IEEE 802.5
The standard for the token ring access method and physical layer specifications developed by a subcommittee of the Institute for Electrical and Electronics Engineers (IEEE) 802 committee.
Input/Output (I/O)
The method, medium, or device (such as a keyboard, monitor, floppy disk, hard disk, NIC, or printer) used to transfer data to a PC or from the PC back to a device or a network.
ISA
Industry Standard Architecture.
LAN
Local area network. A communications network within a limited physical area such as a building that provides high-speed data transmission. The basic components of a LAN are the boards that plug into each PC to connect it to the network, cabling, server hardware, and software for network control.
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