3COM ATMLINK 155 PCI User Manual

Download

ATML

ETWORK

SER

A member of the 3Com family of ATMLink network interface cards

INK

UIDE

™

155 PCI

NTERFACE

ARDS

Part No. 09-1038-000 Published February 1997

3Com Corporation

5400 Bayfront Plaza

■

Santa Clara, California

■

95052-8145

■

© 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 Unpublished rights reserved under the copyright laws of the United States.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 and LinkSwitch are registered trademarks of 3Com Corporation. 3TECH, ATMDisk, ATMLink, the 3Com logo, and CELLplex are trademarks of 3Com Corporation. 3ComFacts is a service mark of 3Com Corporation.

CompuServe is a registered trademark of CompuServe, Inc. Microsoft, MS-DOS, Windows NT, and Microsoft NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. Intel is a trademark of Intel Corporation. Other brand and product names may be registered trademarks or trademarks of their respective holders.

Guide written by Norman Lundell. Edited by Nancy Kurahashi. Technical illustration by Mary Inden. Production by Becky Whitmer.

IFETIME

3Com’s EtherLink®, TokenLink®, TokenLink Velocity™, Fast EtherLink, and FDDILink have a Lifetime Warranty.

To ensure the very best 3Com service and support, take the time to complete the product registration card.

ARRANTY

™

network interface cards

Any defective 3Com adapter will be repaired or replaced, at 3Com’s option, for as long as the adapter resides in its original IBM® Personal Computer, Personal System/2®, or compatible computer (driver software is covered by the standard 90-day limited software warranty).

Customers in the countries 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

■

3Com Benelux B.V., Marketing Department Nevelgaarde 8-9 3436 ZZ Nieuwegein Netherlands

■

France, Israel

3Com France, Marketing Department Immeuble McKinley BP 965 1, Avenue de l’Atlantique 91976 Les Ulis Courtaboeuf Cedex France

■

Italy, Greece, Spain, Portugal, Malta

3Com Mediterraneo Srl, Marketing Department Via Michelangelo Buonarroti, 1 20093 Cologno Monzese MI Italy

■

Japan

3Com Japan, Marketing Department Shinjuku Sumitomo Building 23F 2-6-1 Nishi Shinjuku, Shinjuku-ku Tokyo 163-02 Japan

■

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

ONTENTS

BOUT

HIS

UIDE

Introduction 1 How to Use This Guide 1 Conventions 2

NTRODUCTION

Product Features 1-1 Emulated LAN (ELAN) Overview 1-3 Software Descriptions 1-4

Network Driver Description 1-4 Diagnostic Utility Description 1-5 ATMLink Utility Description 1-6

ARDWARE

Installation Overview 2-1 Installing the 3C975 ATMLink NIC 2-1

INDOWS

Driver Installation Overview 3-1 Driver Installation Requirements 3-2

Hardware Requirements 3-2 Memory Requirements 3-2

Software Requirements 3-3 NIC Information Requirements 3-4

Resilient Server Links Overview 3-4

Rules for Using Resilient Server Links 3-4

NSTALLATION

NT D

Memory Requirement Scenario 1 3-3

Memory Requirement Scenario 2 3-3

RIVER

NSTALLATION

iii

Driver Installation Summary for Experienced Users 3-5

Before You Begin 3-5 Part One: NIC Detection, Resilient Server Links, and

ELAN Allocation 3-6 Part Two: NIC and ELAN Conﬁguration 3-7

Installing the Network Driver 3-8

NIC Detection, Resilient Server Links, and ELAN Allocation 3-8

NIC and ELAN Conﬁguration 3-12 Verifying Driver Installation and Conﬁguration 3-19 Enabling and Disabling ELANs 3-20 Removing an ELAN 3-20 Adding ELANs 3-21 Adding SNMP Support 3-24

ARE

ERVER

RIVER

NSTALLATION

Driver Installation Overview 4-1 Driver Installation Requirements 4-3

Hardware Requirements 4-3

Memory Requirements 4-3

Software Requirements 4-3

NIC Information Requirements 4-3 Resilient Server Links Overview 4-4

Rules for Using Resilient Links 4-4

Implementing Resilient Server Links in NetWare 4-5 Loading the Server Driver 4-6

Before You Begin 4-6

Driver Installation Procedure 4-7 Conﬁguring LECs and Resilient Server Links 4-11 NetWare Card Numbers and Multiple Physical NICs 4-20 Verifying Driver Installation and Conﬁguration 4-21 Editing the AUTOEXEC.NCF File 4-22 Removing an LEC from NetWare 4-26

ATML

Installing and Running the ATMLink Utility for Windows NT 5-1 ATMLink Utility Field Descriptions 5-2

Installing and Running the ATMLink Utility for Novell NetWare 5-7 ATMLink Utility Menu Options 5-9

INK

TILITY

ELAN Information 5-2 NIC Connection Statistics 5-4 NIC Information 5-5 Reset 5-6

NIC Information 5-9 VCC Statistics 5-10 ELAN Statistics 5-12 Reset NIC 5-13 Quit 5-13

IAGNOSTICS

Overview 6-1 When to Use the Diagnostic Utility 6-2 How to Use the Diagnostic Utility 6-3

Starting the Diagnostic Utility 6-3 Navigating Within the Diagnostic Utility 6-4 Running the Internal Tests 6-5 Running the External Loopback Test 6-7

Viewing Test Results 6-9

NIC Statistics 6-10 Individual Test Information 6-10

Changing the Test Setup 6-11

Enabling and Disabling Individual Tests 6-11 Changing the Number of Repetitions 6-12

Changing Action on Error 6-12 File Options 6-12 What to Do If a Test Fails 6-14 Constructing Loopback Plugs 6-16

Fiber-Optic Loopback Plug 6-16

RJ-45 Loopback Plug 6-18 Link LED 6-19

AND

ROUBLESHOOTING

PECIFICATIONS

Hardware A-1 Network Connections A-2 Standards Compliance A-2 Environment A-2 RJ-45 Connector Pinouts A-3

ECHNICAL

Online Technical Services B-1

3Com Bulletin Board Service B-1

World Wide Web Site B-2 3ComForum on CompuServe B-3

3ComFacts Automated Fax Service B-3 Support from Your Network Supplier B-4 Returning Products for Repair B-5

UPPORT

Access by Analog Modem B-1

Access by Digital Modem B-2

LOSSARY

NDEX

IMITED

FCC C

ANADIAN

LASS

ARRANTY

A V

ERIFICATION

B C

ERTIFICATION

OTICE

SER

OFTWARE

TATEMENT

ICENSE

GREEMENT

IGURES

1-1 3C975-F and 3C975-UTP ATMLink NICs 1-2

2-1 Removing the Expansion Slot Cover 2-2

2-2 3C975-F ATMLink NIC Installed in the Chassis 2-3

2-3 SC Duplex and RJ-45 Connectors 2-4

3-1 Network Settings Window 3-9

3-2 Add Network Adapter 3-9

3-3 Insert Disk Dialog Box 3-9

3-4 Select OEM Option Window 3-10

3-5 NIC Installation Dialog Box 3-10

3-6 NIC Mode Dialog Box 3-11

3-7 Total Number of ELANs Dialog Box 3-11

3-8 3Com ATMLink Installation Window 3-12

3-9 ELAN Conﬁguration Window 3-16

3-10 TCP/IP Conﬁguration Window with Sample Entries 3-17

3-11 Restart Prompt for Adapter Driver 3-19

3-12 Select OEM Option Window 3-21

3-13 NIC Installation Dialog Box 3-22

3-14 Total Number of ELANs Dialog Box 3-22

3-15 3Com ATMLink Installation Window Showing Additional

ELANs 3-23

3-16 Selecting the SNMP LEC MIB Agent 3-25

4-1 Installation Options Screen 4-7

4-2 Driver Options Screen 4-8

4-3 Additional Driver Actions Screen 4-8

4-4 Select a Driver Screen 4-9

4-5 Notes for Selecting a Drive Screen 4-9

4-6 Select a Driver to Install Screen 4-10

vii

4-7 ELAN Conﬁguration Screen 4-11

4-8 Conﬁguring the TCP/IP Network Interface 4-13

4-9 Selecting the Card Number 4-14

4-10 Prompt to Add Additional LEC 4-18

4-11 Additional Driver Actions Screen (Adding an Additional

ELAN) 4-18

4-12 Select a Driver Screen 4-19

4-13 Sample of AUTOEXEC.NCF File 4-23

5-1 ATMLink Utility Windows 5-2

5-2 ELAN Information Window 5-3

5-3 Connection Statistics Window 5-4

5-4 NIC information Window 5-5

5-5 Reset Option for Windows NT 5-7

5-6 NetWare ATM Utility Select a NIC Screen 5-8

5-7 NetWare ATMLink Utility Main Menu 5-8

5-8 NetWare NIC Information Screen 5-9

5-9 VCC Statistics Screen 5-11

5-10 Currently Conﬁgured LECs Screen 5-12

5-11 LEC Statistics Screen 5-12

6-1 Diagnostic Utility Main Screen 6-4

6-2 Test Setup Screen 6-5

6-3 Run Tests Screen 6-6

6-4 External Loopback Test Screen 6-8

6-5 Run Tests Screen 6-8

6-6 Test Results Screen 6-9

6-7 NIC Statistics Screen 6-10

6-8 Test Information Screen 6-11

6-9 Sample of Diagnostic Test Report File 6-14

6-10 Unclipping the Connectors of a Double-Strand

Fiber-Optic Cable 6-17

6-11 Clipping Together the Ends of the Same Fiber Strand 6-17

6-12 UTP External Loopback Plug 6-18

viii

TABLES

1 Notice Icons 2

2 Text Conventions 2

3-1 3C975 ATMLink NIC Installation Conﬁguration Parameters 3-13

4-1 3C975 ATMLink NIC NetWare Install Utility Conﬁguration

Parameters 4-11

4-2 NetWare Keywords 4-24

5-1 Windows NT ELAN Information Fields 5-3

5-2 Windows NT Connection Statistics Fields 5-4

5-3 Windows NT NIC Information Fields 5-6

5-4 NetWare NIC Information Fields 5-10

5-5 NetWare VCC Statistics Screen 5-11

5-6 LEC Statistics Fields for NetWare 5-13

6-1 Accessing MS-DOS 6-3

6-2 Function Key Descriptions of the Diagnostic Utility 6-4

6-3 LED Activity 6-19

A-1 RJ-45 Connector Pinouts A-3

ABOUT THIS GUIDE

Introduction

This user guide describes the installation and conﬁguration

of the 3Com network Interface cards (NICs). The intended audience is the network administrator, network operator, or network hardware installer. Knowledge of Asynchronous Transfer Mode (ATM), Microsoft operations is required.

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

The following table shows where to ﬁnd speciﬁc information in this guide.

3C975-F and 3C975-UTP ATMLink™ 155 PCI

Windows NT® and Novell® NetWare® server

If you are looking for information on: Turn to:

Hardware and software overview Chapter 1

Hardware installation Chapter 2

Microsoft Windows NT driver installation Chapter 3

Novell NetWare driver installation Chapter 4

ATMLink utility Chapter 5

ATMLink diagnostic utility Chapter 6

Hardware specifications Appendix A

Technical support Appendix B

2 ABOUT THIS GUIDE

Conventions

Table 1 and Table 2 list text and icon conventions that are used throughout this guide:

Table 1 Notice Icons

Icon Type Description

Information Note Information notes call attention to important

Caution Cautions alert you to personal safety risk, system

Warning Warnings alert you to the risk of severe personal

Table 2 Text Conventions

Convention Description

“Enter” vs. “Type” When the word “enter” is used in this guide, it means type

“Syntax” vs. “Command”

(continued)

something, then press the Return or Enter key. Do not press the Return or Enter key when an instruction simply says “type.”

When the word “syntax” is used in this guide, it indicates that the general form of a command syntax is provided. You must evaluate the syntax and supply the appropriate port, path, value, address, or string; for example:

Enable RIPIP by using the following syntax:

SETDefault !<port> -RIPIP CONTrol = Listen

In this example, you must supply a port number for !<port>.

When the word “command” is used in this guide, it indicates that all variables in the command have been supplied and you can enter the command as shown in text; for example:

Remove the IP address by entering the following command:

SETDefault !0 -IP NETaddr = 0.0.0.0

For consistency and clarity, the full form syntax (upper- and lowercase letters) is provided. However, you can enter the abbreviated form of a command by typing only the uppercase portion and supplying the appropriate port, path, address, value, and so forth. You can enter the command in either upper- or lowercase letters at the prompt.

features or instructions.

damage, or loss of data.

injury.

Conventions 3

Table 2 Text Conventions (continued)

Convention Description

Text represented as

screen display

Text represented as

commands

Keys When specific keys are referred to in the text, they are called out

Italics Italics are used to denote new terms or emphasis.

This typeface is used to represent displays that appear on your terminal screen, for example:

NetLogin: This typeface is used to represent commands that you

enter, for example:

SETDefault !0 -IP NETaddr = 0.0.0.0

by their labels, such as “the Return key” or “the Escape key,” or they may be shown as [Return] or [Esc].

If two or more keys are to be pressed simultaneously, the keys are linked with a plus sign (+), for example:

Press [Ctrl]+[Alt]+[Del].

INTRODUCTION

This chapter describes the hardware and software features of the 3Com card (NIC), hereafter called the 3C975 ATMLink NIC.

Product Features

The 3Com ATMLink 3C975 NIC is available in two models: the 3C975-F and the 3C975-UTP. The 3C975-F NIC has an SC duplex ﬁber-optic cable connector for double-strand

62.5/125 µm multimode ﬁber-optic cable. The 3C975-UTP NIC

has an RJ-45 connector and requires Category 5 unshielded twisted-pair cable. Both 3C975 ATMLink NICs are highperformance single-slot, bus master, half-length PCI cards that provide 155.52 megabit per second (Mbps) SONET (STS-3c) physical layer support.

The 3C975 ATMLink NICs support the following features:

3C975 ATMLink™ 155 PCI network interface

■ ATM Forum standard LAN Emulation Client (LEC)

■ ATM Forum AAL5 ATM adaptation layer

■ ATM Forum UNI 3.0/3.1 standard signaling for switched

virtual circuit (SVC) connections

■ Up to 4 NICs per system

■ Up to 16 emulated LANs (ELANs) per NIC

■ Up to 512 active connections per NIC

■ Up to 4,096 open and 1,024 simultaneously active virtual

channel connections per system

■ Resilient Server Link capability to protect against link failure

■ Compliance with PCI Local Bus Speciﬁcation, revision 2.0

■ Link LED to indicate connection status

1-2 CHAPTER 1: INTRODUCTION

■ Trafﬁc shaping (user-deﬁned maximum peak rate per ELAN)

■ Interim Local Management Interface (ILMI) 3.0 service

■ User-selectable virtual path identiﬁer/virtual circuit identiﬁer

(VPI/VCI) range

■ Simple Network Management Protocol (SNMP) agent for NICs

operating under the Windows NT

operating system

ATM

LINK

ATM

LINK

3C975-F

3C975-UTP

Figure 1-1 3C975-F and 3C975-UTP ATMLink NICs

Emulated LAN (ELAN) Overview 1-3

Emulated LAN (ELAN) Overview

The 3Com ATMLink network driver conforms to the ATM Forum LAN Emulation over ATM Speciﬁcation 1.0 to interoperate with legacy LAN networks. LAN emulation supports the multicast, broadcast, and address resolution services characteristic of shared media LANs, within the connection-oriented ATM environment. Four devices are deﬁned to provide these LAN emulation services:

■ LAN Emulation Client (LEC) found on all end stations

■ LAN Emulation Conﬁguration Server (LECS)

■ LAN Emulation Server (LES)

■ Broadcast and Unknown Server (BUS)

The 3C975 ATMLink NIC network driver provides the LAN Emulation Client and supports up to 16 LECs per NIC. Each LEC conﬁgured on an ATMLink NIC is regarded by the network operating system as a separate (emulated) NIC and receives a unique MAC address. An “emulated” NIC connects to an emulated LAN (ELAN). In short, each physical ATMLink NIC can connect to up to 16 separate ELANs.

The term ELAN is often used to denote an LEC in the 3Com ATMLink utilities, installation programs, and user guide.

An ELAN is a logical grouping of end stations within an ATM network. The ATM network administrator creates ELANs when conﬁguring the ATM switches. Membership in an ELAN is independent of the physical location of the end station within the ATM network. An end station can belong to multiple ELANs simultaneously. Mixed-media edge devices (such as the

3Com LinkSwitch

2700 switch) that are connected to ATM switches enable ATM end stations to interoperate with legacy LAN end stations, because the legacy LAN end station and the ATM end station can be members of the same ELAN. This guide includes conﬁguration procedures that allow an LEC to join an ELAN.

1-4 CHAPTER 1: INTRODUCTION

For more detailed information on LAN emulation and emulated LANs, access the Networking Solutions Center on the 3Com World Wide Web site at www.3com.com. White papers on ATM are found in the Advanced Technology Solutions section.

Software Descriptions

The following software is contained on the ATMDisk™ diskettes shipped with the 3C975 ATMLink NIC.

■ Network driver for Microsoft

and 4.0

■ Network driver and NetWare

NetWare server, versions 4.x and 3.12

Novell

■ ATMLink diagnostic utility (DOS version)

■ ATMLink utility (Windows NT and NetWare versions)

Network drivers and utility programs are periodically updated and made available through 3Com online services. See Appendix B for details on how to use 3Com online services.

Windows NT, versions 3.51

Loadable Modules (NLMs) for

Network Driver Description

3Com ATMLink network drivers support the following features:

■ Simultaneous operation of up to four physical NICs per system

■ ATM Forum LEC, version 1.0 for token ring and Ethernet LANs

■ ATM Forum UNI 3.0 and 3.1 signaling

■ 16 ELANs per NIC

■ ILMI 3.0 services

■ Resilient server links (RSL)

■ Trafﬁc shaping

■ SNMP agent for NICs operating under Windows NT

Software Descriptions 1-5

The NetWare 4.x and 3.12 drivers and Windows NT network drivers support up to four physical NICs per system.

Each physical NIC can be conﬁgured to support up to 16 LECs. Each LEC operates as a virtual NIC and has a unique MAC address.

Only one LEC per NIC is supported in NetWare 3.12.

The ATMLink NIC network driver uses switched virtual circuits (SVCs) to establish network connections with up to 4,096 open virtual channel connections (VCCs) supported per system. Each LEC requires a minimum of four VCCs in addition to those needed for its data requirements. These four VCCs are used by the LAN Emulation Server (LES) and the Broadcast and Unknown Server (BUS).

Resilient server links allow the network administrator to designate up to three of the installed 3C975 ATMLink NICs as standby NICs. In the event of link failure, the standby NIC assumes the conﬁguration proﬁle and network trafﬁc of a failed active ATMLink NIC. Resilient server links are discussed in Chapter 3 and Chapter 4.

The ATMLink network drivers let the ATM network administrator set a maximum peak cell rate value for each LEC. This form of bandwidth allocation is useful in mitigating congestion and ensuring optimum usage of bandwidth.

Diagnostic Utility Description

The ATMLink diagnostic utility is a DOS program that tests the internal integrity of the 3C975 ATMLink NIC and its ability to send and receive packets. The diagnostic utility also identiﬁes the MAC address, the PCI slot number, and manufacturer’s information for each installed 3Com ATMLink NIC. It is recommended that you run the diagnostic utility after installing the ATMLink NIC and before installing the network drivers. For information on how to use the diagnostic utility, see Chapter 6, “Diagnostics and Troubleshooting.”

1-6 CHAPTER 1: INTRODUCTION

ATMLink Utility Description

An ATMLink utility for Microsoft Windows NT and for Novell NetWare is shipped on the ATMDisk diskettes. Use the ATMLink utility to display conﬁguration and operating status of all installed ATMLink NICs and ELANs, as well as to reset a NIC. Chapter 5 describes how to use the ATMLink utility.

HARDWARE INSTALLATION

This chapter describes the procedure for installing the 3C975 ATMLink NIC in your PCI-bus computer system. Follow all applicable instructions included with your system documentation on PCI-bus installations.

Installation Overview

Hardware installation consists of the following major steps:

■ Unpacking the 3C975 ATMLink NIC

■ Installing the 3C975 ATMLink NIC in an available PCI slot

■ Connecting the appropriate cables

Please observe all special notes and precautions.

For technical speciﬁcations on the 3C975 ATMLink NIC, see Appendix A.

Installing the 3C975 ATMLink NIC

To install the 3C975 ATMLink NIC in your computer, perform these steps.

Keep the 3C975 ATMLink NIC in the protective antistatic bag until you are ready to install it. To prevent damage to the NIC due to electrostatic discharge, wear a grounding strap and handle the NIC by its edges only. If you do not have a grounding strap, touch the chassis or the power supply just before handling the NIC. Do not touch the components or any metal parts on the NIC, except for the backplate.

1 Unpack and inspect the 3C975 ATMLink NIC for damage.

2 Exit all open applications and user processes.

2-2 CHAPTER 2: HARDWARE INSTALLATION

3 Turn off the power to the computer system and any

attached devices.

4 Unplug the power cables from the power supply.

WARNING: Your computer operates with voltages that can be lethal. Before you remove the computer cover, carefully review the steps in this procedure and observe all cautions and warnings to protect yourself and to prevent damage to the computer.

5 Remove the cover from your computer.

6 Locate an empty bus master PCI-bus expansion slot.

7 Remove the metal expansion slot cover from the

computer chassis, as shown in Figure 2-1.

Save the screw for step 11 later in this section.

Mounting

screw

Expansion

slot cover

Expansion slots

Figure 2-1 Removing the Expansion Slot Cover

32-bit PCI slots

Installing the 3C975 ATMLink NIC 2-3

8 Insert the 3C975 ATMLink NIC in the selected slot, as

shown in Figure 2-2.

Figure 2-2 3C975-F ATMLink NIC Installed in the Chassis

9 Write down the MAC address of the NIC and note which

slot you used.

This information is helpful when installing the network drivers and connecting the cables to the ATM switch.

The MAC address is the 12-digit hexadecimal number printed on the small bar code label on the component side of the NIC.

10 Press down gently and ﬁrmly on the NIC to seat it properly.

11 Use the screw removed in step 7 to secure the

3C975 ATMLink NIC bracket to the system chassis.

12 Replace the system cover.

2-4 CHAPTER 2: HARDWARE INSTALLATION

13 Connect the power cables and turn on the power to the

computer.

14 Connect the 3C975 ATMLink NIC to the network.

The 3C975-F NIC uses 62.5/125 µm multimode ﬁber-optic

cable with SC duplex connectors. The 3C975-UTP NIC uses Category 5 unshielded twisted-pair cable with an RJ-45 connector. Both models are shown in Figure 2-3.

The physical installation of the ATMLink NIC is now complete.

ATM

SC connector port

LINK

Figure 2-3 SC Duplex and RJ-45 Connectors

LED

ATM

LINK

RJ-45 port

LED

It is strongly recommended that you run the ATMLink diagnostic utility before attempting to install the network drivers. The diagnostic utility veriﬁes that the on-board components of each NIC function correctly. This utility also correlates the MAC address of the NIC with its PCI slot number. You must know the PCI slot number to load, conﬁgure, or reconﬁgure the Microsoft Windows NT network drivers.

The next step is to install the network software driver. For server driver installation procedures, refer to Chapter 3 for Windows NT, or to Chapter 4 for Novell NetWare.

WINDOWS NT DRIVER INSTALLATION

The 3C975 ATMLink NIC driver for ﬁle servers running Windows NT provides standards-based ATM LAN emulation connectivity to an ATM network. This permits legacy LAN networking technologies and protocols (such as Ethernet and token ring) to run over an ATM network.

This chapter includes procedures to install and remove the 3C975 ATMLink Windows NT network driver, as well as information about ELAN conﬁguration and resilient links. A basic knowledge of Windows NT server operations and ATM concepts is required.

The term ELAN is often used to denote an LEC in the graphical user interface and in the following procedures.

Driver Installation Overview

The Windows NT driver installation program consists of two parts:

■ NIC detection, creation of resilient server links, and ELAN

allocation

■ NIC and ELAN conﬁguration

During NIC detection the user designates each detected 3Com 3C975 ATMLink NIC as either an active or a standby NIC (see the section “Resilient Server Links Overview” later in this chapter) and speciﬁes the number of ELANs supported by each active NIC. In the NIC/ELAN conﬁguration portion of the driver installation, the user sets the ATM parameters for all active NICs and ELANs as well as conﬁguration information for standby NICs.

There can be up to four 3Com 3C975 ATMLink NICs installed in a single computer system, with each NIC supporting up to 16 ELANs.

3-2 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Driver Installation Requirements

Please conﬁrm that the following requirements are met before you install and conﬁgure the 3Com ATMLink NIC Windows NT network driver.

Hardware Requirements

■ Computer with Intel®-based CPU and bus master PCI bus,

running Microsoft Windows NT version 3.51 or 4.x

■ 3.5-inch ﬂoppy disk drive

■ At least one 3Com ATMLink NIC installed in the system

Memory Requirements

Use the following formula to determine the Windows NT memory requirements in megabytes of RAM:

(16 x Frame_Size) + [(No. of NICs –1) x (No. of ELANS)]

where:

Frame_size = 1 When the maximum frame size is 1514 bytes

Frame_size = 2 When the maximum frame size is 4542 bytes

Frame_size = 4 When the maximum frame size is 9232 bytes

No. of NICs = The number of ATMLink NICs installed in the

computer

No. of ELANs = The number of ELANs on the NIC with the

most ELANs

When NICs with different maximum frame sizes are installed in the same computer, use the larger Frame_Size value.

Round up the result to the ﬁrst integral multiple of 8.

Most Ethernet ELANs use a maximum frame size of 1514 bytes. Token ring ELANs typically use a maximum frame size of 4542 or 9232 bytes. See Table 3-1 for more information on the Maximum Frame Size conﬁguration parameter.

Driver Installation Requirements 3-3

Memory Requirement Scenario 1

There are two NICs installed. One has a maximum frame size of 1514 bytes and four ELANs, and the other is a standby NIC. The memory requirement is 24 megabytes of RAM.

Frame_Size = 1 (1514 bytes maximum frame size) No. of NICs = 2 (two NICs are installed in the computer) No. of ELANs = 4 (only one NIC has ELANs conﬁgured)

(16 × 1) + [(2 – 1) × (4)] = 20

The closest integral multiple of 8 greater than 20 is 24.

Memory Requirement Scenario 2

There are three NICs installed. One is a token ring LAN type with a maximum frame size of 4542 and four ELANs, one is a token ring LAN type with a maximum frame size of 9232 and two ELANs, and one is an Ethernet LAN type with a maximum frame size of 1514 and six ELANs. The memory requirement is 80 megabytes of RAM.

Frame_Size = 4 (use the largest value of all present) No. of NICs = 3 (three NICs are installed in the computer) No. of ELANs = 6 (the maximum number of ELANs on any one NIC)

(16 × 4) + [(3 – 1) × (6)] = 76

The closest integral multiple of 8 greater than 76 is 80.

Software Requirements

■ ATMDisk diskette for Windows NT

3Com strongly recommends that your Windows NT operating system be updated with the most recent service packs available from Microsoft technical support (www.microsoft.com).

3-4 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

NIC Information Requirements

■ Names of the ELANs to be conﬁgured on each ATMLink NIC

■ IP address and subnet mask of each ELAN using TCP/IP if a

DHCP server is not being used

■ ATM address of the LES or LECS (other than the ATM Forum

Well-known Address) if ILMI services are not used

■ PCI slot number of each installed ATMLink NIC

The MAC address and PCI slot numbers of installed 3Com ATMLink NICs are used in the Windows NT driver installation. They can be obtained by using the diagnostic utility (see Chapter 6 for details).

Resilient Server Links Overview

Resilient server links add redundant function to your server to protect against network disruption and data loss.

To use resilient links, you must install two or more 3Com ATMLink NICs in your system. During the network driver conﬁguration procedure, at least one NIC must be designated an active NIC. The standby NIC takes over when the link on a designated active NIC port is lost.

Rules for Using Resilient Server Links

■ Resilient server links are established only among ATMLink NICs

installed in the same computer.

■ To make a resilient server link, at least two ATMLink NICs must

be installed in the same computer, and one of the NICs must be an active NIC.

■ Active NICs and their standby NICs must be connected to

switches on the same ATM network.

■ Up to three standby NICs can be assigned to a single active NIC.

■ A single standby NIC can be assigned to as many as three

active NICs.

Driver Installation Summary for Experienced Users 3-5

■ In a two-NIC scenario, when NIC 1 is active and NIC 2 is standby,

and if the link on the NIC 1 port fails, NIC 2 assumes the conﬁguration proﬁle of NIC 1 and becomes the active NIC.

NIC 1 now becomes a standby NIC for NIC 2.

■ When a standby NIC assigned to multiple active NICs becomes

active, it can no longer be a standby NIC for its other designated active NICs.

■ When an active NIC with multiple standby NICs fails, the ﬁrst

eligible standby NIC (in driver load order) assumes the conﬁguration proﬁle of the active NIC. If this NIC in turn fails, the next designated standby NIC (in driver load order) takes over, and so on.

■ A NIC cannot be conﬁgured as a standby NIC for another

standby NIC.

■ A resilient server link is established only if the active NIC is

operational after Windows NT is booted.

The standby NIC cannot assume the conﬁguration proﬁle of an active NIC that has never been operational.

Driver Installation Summary for Experienced Users

Experienced Windows NT users knowledgeable in ATM conﬁguration can use the following summary to install the 3C975 ATMLink network driver for Windows NT. Other users should proceed to the section “Installing the Network Driver” later in this chapter.

Before You Begin

■ Verify that all system and memory requirements are met.

■ When multiple ATMLink NICs are installed, run the

ATMLink diagnostic utility.

Write down the MAC address, the bus number, and the slot number of each installed ATMLink NIC. See Chapter 6 for information on the ATMLink diagnostic utility.

3-6 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

■ Obtain the names of the ELANs you wish to join from your

ATM system administrator.

■ Obtain an IP address for each ELAN you intend to install, if the

ELANs are to be used on an IP network without a DHCP server.

Part One: NIC Detection, Resilient Server Links, and ELAN Allocation

1 From the Network Settings window in the Control Panel,

click Add Adapter and copy the 3C975 NIC driver from the 3Com ATMDisk diskette.

The NIC Installation dialog box appears, identifying the ﬁrst 3Com ATMLink NIC found on the PCI bus.

2 Click Yes to install the ATMLink NIC network driver on the

identiﬁed NIC, or click No to bypass the NIC.

You may wish to bypass a previously installed NIC in the system.

The NIC Mode dialog box appears.

3 Make the identiﬁed NIC an active or a standby NIC.

■ If you select Stand-by, the NIC Installation dialog box

reappears when there are multiple NICs installed.

■ If you select Active, the Total Number of ELANs dialog box

appears.

4 Enter the number of ELANs to be supported by the

identiﬁed NIC.

If more than one 3Com ATMLink NIC is installed, the installation program returns to step 2 and the NIC Installation dialog box.

Driver Installation Summary for Experienced Users 3-7

Part Two: NIC and ELAN Conﬁguration

After all the 3Com ATMLink NICs have been detected, the driver ﬁles copied, and the number of ELANs speciﬁed, the 3Com ATMLink Installation window appears.

1 For each installed 3Com ATMLink NIC, set the following

global NIC parameters (these are the same for all NICs in the system):

■ VPI/VCI Range

■ Signaling Version

2 For each installed 3Com ATMLink NIC, set the following local

NIC parameters (these can vary with each NIC in the system):

■ LAN Type

■ ILMI VPI/VCI

■ Maximum Frame Size

■ Resilient Server Links

All of the above parameters except resilient link assignments must match the ATM switch settings. The default values work for most installations.

3 For each ELAN, set the following parameters:

■ ELAN Name

■ Peak Rate

■ LE Conﬁguration Mode

4 Click Save & Exit in the 3Com ATMLink Installation window.

5 Click OK in the Network Settings window.

6 Conﬁgure the IP parameters for each ELAN if IP is used.

Enter dummy IP values for each standby NIC.

7 Restart Microsoft Windows NT.

3-8 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

You have completed the ATMLink Windows NT network driver installation. The remaining sections of this chapter provide a more detailed approach to installing the ATMLink NIC network driver with Windows NT.

Installing the Network Driver

The following driver installation procedure is standard to Windows NT 3.51. The driver can also be installed as part of the Custom setup procedure supplied with your Windows NT operating system. Refer to the Microsoft Windows NT System Guide for additional information.

NIC Detection, Resilient Server Links, and ELAN Allocation

It is assumed that at least one 3C975 ATMLink NIC is installed in the system PCI bus.

1 Boot your system under Windows NT.

2 Log into your Windows NT Administrator account.

3 Double-click the Control Panel icon.

4 Double-click the Network icon.

The Network Settings window shown in Figure 3-1 appears.

5 Click Add Adapter.

The Add Network Adapter window appears, as shown in Figure 3-2.

6 Select <Other>Requires disk from manufacturer from the

bottom of the Network Adapter Card list box.

7 Click Continue.

The Insert Disk dialog box appears, as shown in Figure 3-3.

Installing the Network Driver 3-9

Figure 3-1 Network Settings Window

Figure 3-2 Add Network Adapter

Figure 3-3 Insert Disk Dialog Box

3-10 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

8 Insert the ATMDisk diskette for Windows NT in a ﬂoppy

disk drive.

If necessary, change the drive designation to the appropriate ﬂoppy drive.

9 Click OK.

The Select OEM Option window appears, as shown in Figure 3-4.

Figure 3-4 Select OEM Option Window

10 Select 3Com ATMLink PCI NIC (3C975) and click OK.

The installation program copies the network driver, ATM utility, ATM diagnostic utility, and SNMP agent ﬁles to the system hard disk and then detects all installed 3Com ATMLink NICs in the system. The dialog box shown in Figure 3-5 appears.

Figure 3-5 NIC Installation Dialog Box

Installing the Network Driver 3-11

11 Click Yes if you want the 3Com driver installed on the

indicated NIC. Otherwise, click No.

If you click Yes , the NIC Mode dialog box appears, as shown in Figure 3-6. If you click No, the NIC Installation dialog box reappears for the next discovered ATMLink NIC.

To correlate the PCI bus and slot number with a physical NIC, run the 3Com ATMLink diagnostic utility.

Figure 3-6 NIC Mode Dialog Box

12 Click Active to make the identiﬁed NIC an active NIC, or click

Stand-by to make it a standby NIC (resilient server link).

■ If you select Stand-by, the NIC Installation dialog box

reappears for the next discovered 3C975 ATMLink NIC.

■ If you select Active, the Total Number of ELANs dialog box

appears, as shown in Figure 3-7.

Figure 3-7 Total Number of ELANs Dialog Box

13 Enter the number of ELANs you require on the indicated

NIC, and click OK.

The maximum number of ELANs per NIC is 16.

3-12 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Each ELAN on a physical NIC is assigned a unique MAC address that is an increment of the base MAC address of the physical NIC.

When you have completed resilient server link and ELAN assignments for each discovered NIC, the 3Com ATMLink Installation window appears, as shown in Figure 3-8 in the next section.

NIC and ELAN Conﬁguration

The ELANs allocated to an active NIC appear in the ELAN portion of the ATMLink Installation window (Figure 3-8). The MAC addresses of the ELANs do not appear until the system is rebooted. The VCI/VPI Range and Signaling are global parameters set the same for all NICs in the system. LAN Type, ILMI VPI/VCI, and Maximum Frame Size are local NIC parameters and can be different for each NIC. Trafﬁc Shaping and LE Conﬁguration Mode, shown in Figure 3-9, are ELAN-speciﬁc parameters that can be different for each ELAN.

Figure 3-8 3Com ATMLink Installation Window

Installing the Network Driver 3-13

Table 3-1 describes the ﬁelds and buttons in the ATMLink Installation and ELAN Conﬁguration windows. Default values are shown in bold.

Table 3-1 3C975 ATMLink NIC Installation Conﬁguration Parameters

Range of Values

Field

ATMLink NIC All ATMLink NICs with

Global NIC Parameters (must be the same for all NICs in a computer system)

VPI/VCI Range 0 bits/12 bits

Signaling UNI v3.0

Local NIC Parameters (speciﬁc to each NIC in a computer system)

LAN Type Ethernet (802.3)

ILMI VPI 0 This parameter is determined by the

ILMI VCI 16 This parameter is determined by the

Maximum Frame Size 1514

Resilient Server Link Any active NIC Select one or more eligible active NICs

(continued)

(Defaults in Bold)

installed drivers by PCI slot, bus number, and MAC address (after initial installation)

1 bits/11 bits 2 bits/10 bits 8 bits/4 bits

UNI v3.1

Token Ring (802.5)

4542 9232

Description

Select the NIC you wish to configure from the drop-down list.

This parameter is determined by the ATM switch setting.

All ELANs configured on a NIC must be the same LAN type.

ATM switch setting.

All ELANs on the same NIC have the same MFS value, also called maximum transfer unit (MTU). Use 1514 for Ethernet, 4542 for 4 Mbps token ring, and 9232 for 16 Mbps token ring. Only end stations using the same value can interoperate.

to make the current ATMLink NIC a standby NIC.

3-14 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Table 3-1 3C975 ATMLink NIC Installation Conﬁguration Parameters (continued)

Range of Values

Field

ELAN Parameters (speciﬁc to each ELAN)

ELAN Name 0- to 32-character

Traffic Shaping 1–155 Mbps Sets the maximum bandwidth available

LE Configuration Mode

(Defaults in Bold)

ASCII string

Automatic using ILMI

Description

ELAN names must match ELAN names configured on the ATM switch. ELAN names are case-sensitive.

to an ELAN.

Select Automatic using ILMI for ILMI service.

Automatic with specific LECS

Manual with specific LES

LECS ATM Address ATM Forum

Well-known Address

LES ATM Address No default Enter the 20-byte network address of

Select Automatic with specific LECS to connect with a LECS different from that specified by ILMI.

Select Manual with a specific LES to bypass the LECS and connect directly with a LES of known address.

Enter the 20-byte network address of the target LECS if it does not use the ATM Forum Well-known Address.

the target LES.

To conﬁgure NICs and ELANs, follow these steps:

1 Select the NIC that you want to conﬁgure from the

ATMLink NIC list box in the ATMLink Installation window.

You can conﬁgure the NICs in any order that you wish.

2 To make the selected NIC a standby NIC, select one or

more active NICs.

Eligible active NICs appear in the Resilient Server Link box. If you make a NIC a standby NIC, no further conﬁguration is necessary. Proceed to step 7.

Installing the Network Driver 3-15

3 Change the global NIC parameters if necessary.

Global parameters values are the same for every NIC in the computer system.

a Select a VPI/VCI range.

Select the VPI/VCI range that matches the VPI/VCI range set on the ATM switch by the ATM network administrator. The default is 0 bits VPI, 12 bits VCI.

b Select a signaling option.

Select the option that matches the signaling option set on the ATM switch by the ATM network administrator. The default is UNI version 3.1.

4 Change the local NIC parameters if necessary.

Local parameter values are speciﬁc to the NIC being conﬁgured.

a Select a LAN type for the NIC.

All ELANs allocated to this NIC will be of this same LAN type. The default value is Ethernet.

b Set the maximum frame size (also known as the

maximum transfer unit [MTU]). Select 1514 for Ethernet, 4542 for 4 Mbps token ring, or 9232 for 16 Mbps token ring. The same maximum frame size value should be used by all end stations on the same network.

c Edit the ILMI VPI/VCI parameters if necessary.

The ILMI VPI/VCI is set on the ATM switch. Most implementations of ILMI use the default value of VPI 0 and VCI 16.

3-16 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

5 Select an ELAN name and then click Conﬁgure ELAN.

The ELAN Conﬁguration window appears, as shown in Figure 3-9.

Figure 3-9 ELAN Conﬁguration Window

a Enter the ELAN name.

The ELAN names should match the ELAN names conﬁgured on the ATM switch, LECS, or LES. In many ATM installations the ELAN name is supplied by the LES.

b Select the LE conﬁguration mode.

■ Select Automatic using ILMI to use the ATM switch-based

Interim Local Management Interface service (ILMI) to connect to the LES.

■ Select Automatic with speciﬁc LECS if you wish to contact

an LECS not identiﬁed by ILMI. Enter the 20-byte ATM address of the speciﬁc LECS if it does not use the default ATM Forum Well-known Address. To reinstate the default value, click the Well-known LECS Address button.

■ Select Manual with speciﬁc LES to connect directly to the

LES. Enter the 20-byte ATM address of the LES.

Installing the Network Driver 3-17

6 When all the clients are conﬁgured, click OK.

The 3Com ATMLink Installation window shown in Figure 3-8 reappears.

All entries and edits to the 3Com ATMLink Installation and ELAN Conﬁguration windows are saved only when you select the Save & Exit button in the 3Com ATMLink Installation window. Clicking Cancel erases all entries and edits in both windows.

7 Click Save & Exit to exit the 3Com ATMLink Installation

window.

8 Click OK in the Network Settings window.

If IP services are installed, the TCP/IP Conﬁguration dialog box appears, as shown in Figure 3-10. If any of the ELANs and standby NICs are on IP networks, proceed to the next step; otherwise, click Cancel in the TCP/IP Conﬁguration dialog box and proceed to step 11.

Figure 3-10 TCP/IP Conﬁguration Window with Sample Entries

3-18 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

9 Edit the TCP/IP parameters.

All ELANs and standby NICs using TCP/IP require a unique IP address and subnet mask. Enter dummy values for the standby NICs.

Contact your network administrator for appropriate IP addresses and subnet masks. Be sure that dummy IP addresses used for standby NICs do not conﬂict with other addresses on the network.

Each ELAN must be on a different subnet. Refer to the Microsoft Windows NT System Guide for information on the other TCP/IP conﬁguration values.

a Select an ELAN or standby NIC from the Adapter list box.

You can conﬁgure the ELANs and NICs in any order.

b Enter the IP address for an ELAN or a dummy address for a

standby NIC.

c Enter the subnet mask.

d Enter the default gateway if applicable.

If your local network has a gateway to other networks, you must enter your network’s gateway address to communicate with nodes on the other side of the gateway.

e Enter the primary WINS server if applicable.

This is the address of the primary name server used for looking up host names belonging to the local and connected networks.

f Enter the secondary WINS server if applicable.

If the primary name server does not respond to requests for host information, the secondary server will be queried.

g Repeat substeps a through f for each ELAN.

Verifying Driver Installation and Configuration 3-19

10 Click OK when the TCP/IP conﬁguration is complete.

The restart prompt shown in Figure 3-11 appears.

Figure 3-11 Restart Prompt for Adapter Driver

11 Make sure that all cables are connected to the appropriate

switch ports.

12 Select Restart Now to restart the Windows NT system.

This completes the installation and conﬁguration of the 3Com ATMLink Windows NT network driver.

Verifying Driver Installation and Conﬁguration

Perform the following procedures to verify that the driver is installed and operative:

■ If you are using TCP/IP, ping the ATMLink end station that you

want to test.

■ Check the link LED.

The LED is lit when the driver is loaded and a good connection is made to the ATM switch. The LED on a standby NIC does not light unless the NIC changes to active status.

■ Launch the ATMLink utility and check the State parameter in

the ELAN Information window. A functional ELAN is designated as OPERATIONAL.

■ Check the Windows NT events log for any messages about

the newly conﬁgured ELANs and NICs.

3-20 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Enabling and Disabling ELANs

To disable an ELAN, click the ELAN name in the 3Com ATMLink Installation window (Figure 3-15), and then click Disable ELAN. This action disables the protocol bindings of the ELAN. The button name then changes to Enable ELAN.

To enable an ELAN, click the name of a disabled ELAN and then click Enable ELAN.

Removing an ELAN

Individual ELANs are removed one at a time.

To remove an ELAN and its associated software drivers from Windows NT, follow these steps:

1 Double-click the Control Panel icon in the Main group.

The Control Panel window appears.

2 Double-click the Network icon to access the Network Settings

window.

3 Select an ELAN from the Installed Adapter Cards list.

4 Click Remove.

You are prompted to conﬁrm the removal of the component.

5 Click Yes to remove the ELAN.

The request is processed and the Networks Settings window reappears.

CAUTION: Do not attempt to reinstall the ELAN before restarting the computer.

6 Click OK in the Network Settings window.

The restart prompt appears.

7 Select Restart Now to reboot the computer.

Adding ELANs

Additional ELANs can be added to a NIC after the initial installation. Perform the following procedure to add additional ELANs:

1 If multiple ATMLink NICs are installed, identify the PCI slot

and bus number of the NICs on which you want to install additional ELANs.

Use the diagnostic utility to obtain this information if you do not already have it.

2 Perform steps 1 through 9 of the Windows NT driver

installation procedure, as described in the section “Installing the Network Driver.”

3 In the Select OEM Option window, select 3Com ATMLink

PCI NIC ELAN Instance, as shown in Figure 3-12.

Adding ELANs 3-21

Figure 3-12 Select OEM Option Window

3-22 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

The installation program ﬁnds all installed 3Com ATMLink NICs. A dialog box appears for the ﬁrst NIC discovered, as shown in Figure 3-13.

Figure 3-13 NIC Installation Dialog Box

4 If you want to add ELANs to the NIC identiﬁed in the dialog

box, click Yes ; otherwise, click No.

When you click No, and if multiple NICs are installed, the NIC Installation dialog box reappears with the next detected NIC.

When you click Yes, the Total Number of ELANs dialog box appears, as shown in Figure 3-14.

Figure 3-14 Total Number of ELANs Dialog Box

5 Enter the total number of ELANs you want to install on the

indicated physical NIC and click OK.

The total number of ELANs already conﬁgured on the indicated NIC is displayed in the Total ELANs ﬁeld. To add ELANs to the NIC, enter a number that is the sum of the number of ELANs already conﬁgured and the number of ELANs you want to add. For example, if the NIC already has 4 ELANs and you want to add 1 more, enter 5 in the Total ELANs ﬁeld.

Adding ELANs 3-23

The preexisting ELANs retain all of their conﬁguration information. The new ELANs appear in the ELAN portion of the 3Com ATMLink Installation window, as shown in Figure 3-15.

Figure 3-15 3Com ATMLink Installation Window Showing Additional ELANs

6 Conﬁgure the new ELANs, and then click Save & Exit.

7 Click OK in the Networks Setting window.

8 Conﬁgure IP information for the new ELANs if IP is used,

and click OK; otherwise, click Cancel.

9 Restart Windows NT.

3-24 CHAPTER 3: WINDOWS NT DRIVER INSTALLATION

Adding SNMP Support

The SNMP agent shipped with the ATMLink NIC offers limited support for the ATM Forum LAN Emulation Client Management

Version 1.0 Speciﬁcation. The agent is shipped on the AT MD is k diskette as the LECMIB.DLL and LECIFMIB.DLL ﬁles, for

use with Windows NT only. The ﬁles are automatically copied to the system hard drive during driver installation and install themselves if Windows NT is running the SNMP service. If the SNMP service was not running when the agent was copied from the ATMD is k diskette, the agent must be manually installed.

The ATMLink SNMP agent responds to requests from any standard SNMP network management software. The SNMP Get and GetNext commands work for all the LEC MIB objects. The Set command does not work with all SNMP variables, and the user cannot create or modify an LEC.

To manually install the ATMLink SNMP agent on your Windows NT system, perform the following procedure:

Make sure that the SNMP service is installed on Windows NT. See your Microsoft WIndows NT Installation Guide for more information.

1 Perform steps 1 through 9 of the Windows NT driver

installation procedure described in the section “Installing the Network Driver.”

2 From the Select OEM Option dialog box, select

3Com ATMLink SNMP LEC MIB Agent, as shown in Figure 3-16.

Adding SNMP Support 3-25

Figure 3-16 Selecting the SNMP LEC MIB Agent

3 Click OK.

The SNMP agent ﬁles are copied to the system hard disk.

4 Click OK in the Network Settings window.

5 Restart Windows NT.

NETWARE SERVER DRIVER INSTALLATION

The 3C975 ATMLink NIC driver for ﬁle servers running Novell NetWare 3.12 and 4.x provides standards-based ATM LAN emulation connectivity to an ATM network. This permits legacy LAN networking technologies and protocols (such as Ethernet and token ring) to run over an ATM network.

This chapter includes procedures to install and remove the 3C975 ATMLink Novell NetWare network driver, as well as information about LEC conﬁguration and resilient server links. A knowledge of Novell NetWare and ATM is required.

If the information in the release notes shipped with your product or the README.TXT ﬁles on the ATMDisk diskette differs from the information in this guide, follow the release notes or README.TXT ﬁles.

Driver Installation Overview

Installation of the 3Com ATMLink NIC NetWare driver is divided into three parts:

■ Conﬁrming that the driver installation requirements have

been met

■ Copying the driver to the hard drive of the server manually

or by using the NetWare install utility

■ Conﬁguring the LEC parameters by editing the

AUTOEXEC.NCF ﬁle or using the NetWare install utility

The installation requirements specify the hardware and software required for installation of the network driver. Required software includes NetWare Loadable Modules (NLMs) that permit NetWare versions 3.12 and 4.x to function with the 3Com ATMLink NIC network drivers.

4-2 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Copying the driver from the ATMDisk diskette to the hard drive of the server is a standard NetWare driver installation operation, performed manually or by using the standard NetWare install utility. This guide documents the use of the NetWare install utility.

After the ATMLink NIC network driver (3C975.LAN) has been copied to the server system directory, the driver is modiﬁed with the NetWare install utility to conﬁgure the parameters of the ﬁrst LEC. During this process the NIC can also be conﬁgured for resilient server links. When all the LEC parameters or resilient link parameters have been set, the installation program saves the parameters, loads the driver, and modiﬁes the AUTOEXEC.NCF ﬁle by adding appropriate load and bind command lines.

To conﬁgure additional LECs, you must modify the same 3C975.LAN driver. Resilient server links and LECs can be conﬁgured manually by editing the AUTOEXEC.NCF ﬁle. Procedures for manually editing the AUTOEXEC.NCF ﬁle and for unloading network drivers are included at the end of this chapter.

NetWare 4.x supports up to 4 3C975 ATMLink NICs per system, with up to 16 LECs per NIC. NetWare 3.12 supports up to four NICs per system and one LEC per NIC.

Driver Installation Requirements 4-3

Driver Installation Requirements

Please conﬁrm that the following installation requirements are met before installing and conﬁguring the network driver.

Hardware Requirements

■ File server with a PCI bus running Novell NetWare version 3.12

or 4.x

■ 3.5-inch ﬂoppy disk drive

■ At least one 3Com ATMLink NIC installed in the system

Memory Requirements

■ 64 MB of system memory recommended for each installed

ATMLink NIC

Software Requirements

■ 3Com ATMDisk diskette for Novell NetWare

Before installing the driver, review the README.TXT document included on the ATMDisk diskette.

3Com strongly recommends that your Novell network operating system be updated with the most recent patches and updates available from Novell technical support (www.novell.com).

NIC Information Requirements

■ The names of the ELANs to be conﬁgured on each ATMLink NIC

■ IP address and subnet mask of each LEC using TCP/IP

The MAC address and PCI slot numbers of installed 3Com ATMLink NICs are not used in the NetWare driver installation, but they can be obtained by using the diagnostic utility (see Chapter 6 for details).

4-4 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Resilient Server Links Overview

Resilient server links add redundant function to your server to protect against network disruption and data loss.

To use resilient links, you must install two or more 3Com ATMLink NICs in your system. During the network driver conﬁguration procedure, at least one NIC must be designated as an active NIC, and one a standby. The standby NIC takes over when the link on a designated active NIC port is lost.

Rules for Using Resilient Links

■ Resilient server links are established only among ATMLink NICs

installed in the same computer.

■ To make a resilient server link, at least two ATMLink NICs

must be installed in the same computer, and one of the NICs must be an active NIC.

■ Active NICs and their standby NICs must be connected to

switches on the same ATM network.

■ Up to three standby NICs can be assigned to a single active NIC.

■ A single standby NIC can be assigned to as many as three

active NICs.

■ In a two-NIC scenario, when NIC 1 is active and NIC 2 is

standby, and if the link on the NIC 1 port fails, NIC 2 assumes the conﬁguration proﬁle of NIC 1 and becomes the active NIC.

NIC 1 now becomes a standby NIC for NIC 2.

■ When a standby NIC assigned to multiple active NICs becomes

active, it can no longer be a standby NIC for its other designated active NICs.

■ When an active NIC with multiple standby NICs fails, the ﬁrst

Resilient Server Links Overview 4-5

■ A NIC cannot be conﬁgured as a standby NIC for another

standby NIC.

■ A resilient server link is established only if the active NIC is

loaded before the standby NIC and is operational after NetWare is booted.

The standby NIC cannot assume the conﬁguration proﬁle of an active NIC that has never been operational.

Implementing Resilient Server Links in NetWare

In NetWare, an active NIC and all of its standby NICs must share the same interrupt request level (IRQ). Because the PCI bus often assigns different IRQs to devices found in the PCI slots, you may need to use the system CMOS setup utility to manually assign the same IRQ to the target NICs. To see the IRQ of an ATMLink NIC, access the NIC Information screen in the ATMLink utility (see Chapter 5).

A standby NIC must have these attributes:

■ One or more designated active NICs

■ The same link type as its active NICs

■ Its own card number and channel number

The Home, Link Type, Card Number, and Channel Number parameters in the NetWare install utility are used to specify these attributes. The corresponding keywords are home, linktype, channel, and cardnum. See Table 4-1 and Table 4-2 later in this chapter for explanations of the NetWare install utility parameters and keywords.

To conﬁgure standby NICs manually in the AUTOEXEC.NCF ﬁle, use the appropriate keywords, as shown in the following example, where card 2 is a standby NIC for cards, 1, 3, and 4. Note that the active NICs must be loaded before the standby NICs.

load 3c975 cardnum=1, linktype=1 channel=1 (etc.) load 3c975 cardnum=3, linktype=1 channel=2 (etc.) load 3c975 cardnum=4, linktype=1 channel=3 (etc.) load 3c975 cardnum=2 linktype=1 channel=4 home=1,3,4

4-6 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

A NIC conﬁgured as a standby NIC does not require other keyword parameters or a bind command, because it assumes the conﬁguration proﬁle of the active NIC. For more information on editing the AUTOEXEC.NCF ﬁle, see the section “Editing the AUTOEXEC.NCF File” later in this chapter.

Loading the Server Driver

The following procedure describes the installation procedure for Novell NetWare 4.10. In NetWare version 3.12, LECs must be manually conﬁgured by editing the AUTOEXEC.NCF. In NetWare version 4.11, the install utility user interface differs slightly from that shown in this user guide.

Before You Begin

Perform the following operations before loading the ATMLink NetWare drivers:

■ Load the NLMs provided by 3Com on the ATMDisk diskette:

■ NBI.NLM

■ MSM.NLM

■ ETHERTSM.NLM

■ TOKENTSM.NLM

The NLMs for NetWare version 3.12 are also on the ATMDisk diskette. See the README.TXT ﬁle for further information.

■ Set the number of minimum packet receive buffers in the

STARTUP.NCF ﬁle.

Use the following syntax to set the number of minimum packet buffers required for the ATMLink NICs:

Minimum Packet Receive Buffers=<# of buffers>

where <# of buffers>= 64 * number of ATMLink NICs

If the number of minimum packet receive buffers is already present in the STARTUP.NCF ﬁle, add that number to the number calculated for the ATMLink NICs.

Driver Installation Procedure

Perform the following steps to install the 3Com 3C975 ATMLink NIC driver on a NetWare 4.x ﬁle server:

1 With NetWare 4.x installed and the server up and running,

enter the following command at the prompt:

load install

The Installation Options screen appears, as shown in Figure 4-1.

Loading the Server Driver 4-7

Figure 4-1 Installation Options Screen

Use the arrow keys to select an item in any of the NetWare dialog boxes and then press [Enter].

4-8 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

2 Select Driver options.

The Driver Options screen appears, as shown in Figure 4-2.

3 Select Conﬁgure network drivers.

The Additional Driver Actions screen appears, as shown in Figure 4-3.

Figure 4-2 Driver Options Screen

Figure 4-3 Additional Driver Actions Screen

Loading the Server Driver 4-9

4 Choose Select a driver.

The Select a Driver screen appears, as shown in Figure 4-4.

If this is the ﬁrst installation of the 3C975 NIC driver, it will not appear in the above list.

5 Press the [Insert] key to install a driver from the ﬂoppy

disk drive.

A system message for selecting a disk drive appears, as shown in Figure 4-5.

Figure 4-4 Select a Driver Screen

Figure 4-5 Notes for Selecting a Drive Screen

4-10 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

6 Insert the ATMDisk diskette for NetWare in a ﬂoppy drive.

If a path other than drive A: is required, press [F3] to specify a different drive.

7 Press [Enter].

The Select a Driver to Install screen appears, as shown in Figure 4-6.

Figure 4-6 Select a Driver to Install Screen

8 Press [Enter] to select the 3Com 3C975 ATMLink driver.

9 Select Yes when you are prompted to conﬁrm the name of

the driver to copy.

The install utility copies the driver to the appropriate server subdirectory.

Proceed to the next section to conﬁgure LECs and resilient server links.

Configuring LECs and Resilient Server Links 4-11

Conﬁguring LECs and Resilient Server Links

After the driver ﬁles are copied to the server, the ELAN Conﬁguration screen appears, as shown in Figure 4-7.

Figure 4-7 ELAN Conﬁguration Screen

Table 4-1 lists the conﬁguration parameters of the 3Com ATMLink NIC, the range of values, and parameter descriptions. Default values are shown in bold.

Table 4-1 3C975 ATMLink NIC NetWare Install Utility Conﬁguration Parameters

Range of Values

Parameter

Card Number 1, 2, 3, 4 This number denotes which physical NIC

Channel 1–64 Use a unique channel number for each

ELAN Name 1- to 32-character ASCII

Link Type Ethernet

Home Card <blank>, 1, 2, 3, 4 If Card Number=3 and Home=2,1 then

(continued)

(Defaults in Bold)

string

Token ring

Description

is being configured.

ELAN and standby NIC in the system (16 ELANs per NIC, 4 NICs per system).

ELAN names should match ELAN names configured on the ATM switch.

All ELANs with the same card number must have the same link type. A standby NIC must have the same link type as its active NICs.

Card 3 is a standby NIC for Card 2 and Card 1.

4-12 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Table 4-1 3C975 ATMLink NIC NetWare Install Utility Conﬁguration Parameters (cont’d)

Range of Values

Parameter

Maximum Frame Size 1514

Rate 1–155 Sets the maximum bandwidth in Mbps

LEC Configuration Mode

LECS Network Prefix ATM Forum

LECS User Part 00A03E00000100

LES Network Prefix No default Enter the 13-byte network prefix of the

LES User Part No default Enter the 7-byte user part of the target

Maximum VCCs Allowed

VPI/VCI Range 0 bits/12 bits

ILMI VPI 0 This parameter is determined by the ATM

ILMI VCI 16 This parameter is determined by the ATM

Signaling Version UNI v3.0

(Defaults in Bold)

4542 9232

Automatic

Manual

Well-known Address (not shown)

(not shown)

5–1024 There are 4,096 open VCCs supported

1 bits/11 bits 2 bits/10 bits 8 bits/4 bits

UNI v3.1

Description

All ELANs with the same card number must have the same MFS value, also called maximum transfer unit (MTU). Use 1514 for Ethernet, 4542 for 4 Mbps token ring, and 9232 for 16 Mbps token ring. Only end stations using the same value can interoperate.

available to an LEC.

Select Automatic for ILMI service. Select Manual to connect with a specific LECS or LES.

Enter the 13-byte network prefix of the switch on which the target LECS resides.

Enter the 7-byte user part of the target LECS address (the ESI plus 00 as the selector byte).

switch on which the target LES resides.

LES address (the ESI plus 00 as the selector byte).

per system (4 NICs per system).

This parameter is determined by the ATM switch setting and must be the same for all NICs in the system.

switch setting.

This parameter is determined by the ATM switch setting and must be the same for all NICs in the system.

Configuring LECs and Resilient Server Links 4-13

To conﬁgure LECs using the NetWare install program, perform the following procedure:

1 Select Select/Modify driver parameters and protocols at the

bottom of the ELAN Conﬁguration screen, as shown in Figure 4-7.

The highlight bar moves to the TCP/IP option in the Protocols box.

2 To add a protocol, select the desired protocol from the

Protocols box.

IPX is the default protocol. If you select TCP/IP, the dialog box shown in Figure 4-8 appears.

Figure 4-8 Conﬁguring the TCP/IP Network Interface

3 Edit the TCP/IP information as follows:

a Enter the IP address.

b Enter the IP mask.

c Press [Enter] to continue.

4-14 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

4 Press [F3] to set the frame type.

Use the arrow keys to select a new frame type, if necessary.

The default frame type is 802.2. If you are conﬁguring a token ring LEC, change the frame type to Token Ring or Token Ring SNAP as appropriate.

5 Edit the Card Number parameter.

a Use the arrow keys to select the Card Number parameter

and press [Enter].

The dialog box shown in Figure 4-9 appears and lets you select the card number.

b Select the card number you want and press [Enter].

When multiple ATMLink NICs are installed, you must determine which physical NIC corresponds to which card number in order to correctly connect the cables to the ATM switch. See the next section, “NetWare Card Numbers and Multiple Physical NICs.”

Figure 4-9 Selecting the Card Number

Configuring LECs and Resilient Server Links 4-15

6 Enter the ELAN name.

In most cases, the ELAN name should match a preconﬁgured

™

name on the ATM switch, such as the 3Com CELLplex

7000 switch. Other manufacturers may have different requirements. Refer to your ATM switch documentation for details concerning ELAN naming.

7 Enter the link type.

Select Ethernet or Token Ring according to your need.

8 Enter the card numbers of the designated active NICs if the

current card is to be a standby NIC.

An entry in the Home Parameter ﬁeld makes the current NIC (the NIC associated with the current card number) a standby NIC. Enter the card numbers (separated by commas) of the active NICs to be assigned to this standby NIC. When the Home Card parameter is set, any previously conﬁgured LECs with the same card number as the standby NIC are ignored.

The Link LED of a standby NIC does not light until it assumes the conﬁguration proﬁle of a failed active NIC.

9 Enter the maximum frame size.

■ Enter 1514 when communicating with Ethernet LAN

segments.

■ Enter 4542 when communicating with 4 Mbps token ring

LAN segments.

■ Enter 9232 when communicating with 16 Mbps token ring

LAN segments.

An end station can only communicate with end stations that are using the same maximum frame size, also known as the maximum transfer unit (MTU). Make sure that the ATM switch supports the speciﬁed maximum frame size.

4-16 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

10 Select the LEC conﬁguration mode.

■ Select Automatic to contact the default LAN Emulation

Conﬁguration Server (LECS) through the Interim Local Management Interface (ILMI).

■ Select Manual if you wish to contact a different LECS or

bypass the LECS and connect directly to a LAN emulation server (LES).

11 Enter the LECS network preﬁx if you selected Manual for

the LEC Conﬁguration Mode.

The LECS network preﬁx is the ﬁrst 13 bytes (26 characters) of the 20-byte ATM address of the ATM switch on which the target LECS resides. Enter the address without delimiters.

For example:

470000000000000000000000A1

12 Enter the LECS user part if you selected Manual for the LEC

Conﬁguration Mode.

This is the 7-byte hexadecimal (14-character) user part of the of the 20-byte target LECS ATM address. Enter the address without delimiters.

For example:

0E4A2C27456200

13 Enter the LES network preﬁx if you selected Manual for the

LEC Conﬁguration Mode.

The LES network preﬁx is the ﬁrst 13 bytes (26 characters) of the 20-byte ATM address of the ATM switch on which the target LES resides. Enter the address without delimiters.

For example:

470000000000000000000000A1

Configuring LECs and Resilient Server Links 4-17

14 Enter the LES user part if you selected Manual for the LEC

Conﬁguration Mode.

This is the 7-byte hexadecimal (14-character) user part of the target LES address. Enter the address without delimiters.

For example:

0E4A2C27456200

15 Select the VPI/VCI range.

The default value is 0 bits VPI, 12 bits VCI. This value is determined by the ATM switch settings and must be the same for all end stations on the network.

16 Select the ILMI VPI.

The default value is 0. This value is determined by the ATM switch settings.

17 Select the ILMI VCI.

The default value is 16. This value is determined by the ATM switch settings.

18 Select the signaling version.

UNI 3.1 is the default value. Select the version of UNI supported by your switch.

19 When you have set all the conﬁguration values, press [F10]

or [Esc] to move to the Driver Actions box.

20 Select Save parameters and load driver.

The install utility writes the appropriate load and bind commands to the AUTOEXEC.NCF ﬁle and loads the LEC.

If no errors are encountered, the dialog box shown in Figure 4-10 appears.

4-18 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Figure 4-10 Prompt to Add Additional LEC

21 Do one of the following:

■ Select No to complete and exit the conﬁguration procedure.

■ Select Yes to create and conﬁgure an additional LEC. The

Additional Driver Actions screen appears, as shown in Figure 4-11.

Figure 4-11 Additional Driver Actions Screen (Adding an Additional ELAN)

Configuring LECs and Resilient Server Links 4-19

The screen shown in Figure 4-11 is the same screen shown in Figure 4-3, except that the newly installed LEC instance is displayed. Each LEC instance requires conﬁguration of the same 3C975.LAN driver.

22 Choose Select an additional driver from the Additional

Driver Actions box and press [Enter].

The Select a Driver screen appears, as shown in Figure 4-12.

Figure 4-12 Select a Driver Screen

23 Select 3C975.LAN in the Select a Driver box.

The ELAN Conﬁguration screen appears, as shown in Figure 4-7.

Go to step 1 at the beginning of this section and repeat the conﬁguration procedure.

4-20 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

NetWare Card Numbers and Multiple Physical NICs

To connect a cable from the ATMLink NIC to the appropriate port on the ATM switch, you must know which physical NIC corresponds to a given NetWare card number.

All ATMLink LEC conﬁgurations include a card number that NetWare must correlate to a physical ATMLink NIC. LECs with the same card number are bound to the same physical NIC.

Using the ATMLink utility with the diagnostic utility is the quickest way to correlate physical NICs and NetWare card numbers. The diagnostic utility identiﬁes each ATMLink NIC by MAC address and PCI slot number. The ATMLink utility identiﬁes each NIC by the NetWare card number (NIC number) and the PCI slot number. Run the diagnostic utility to ﬁnd out which ATMLink NICs are in which PCI slots. Then run the ATMLink utility to identify which card numbers are assigned to the NICs in the same PCI slots.

A more elaborate method to correlate physical NICs to PCI slot numbers is to observe the LEDs of the ATMLink NICs when the NetWare server is initialized.

When the ﬁrst LEC is loaded, the driver correlates the card number with the ﬁrst ATMLink NIC found on the PCI bus. When an LEC with a different card number is loaded, the driver correlates the new card number to the next ATMLink NIC found, and so on for all different card numbers detected. This process is repeated every time the server is booted.

As each LEC loads, the LED on the corresponding ATMLink NIC ﬂashes slowly. In the sample AUTOEXEC.NCF ﬁle below, the LEC with card number 1 (cardnum=1) loads ﬁrst, card number 3 loads second, and card number 2 loads third and fourth. Card number 4 is the ﬁfth to load and is a standby NIC for card numbers 1, 2, and 3. The ﬁrst ATMLink NIC found on the PCI bus is correlated to all LECs with card number 1, the second ATMLink NIC found is correlated to all LECs with card number 3, the third ATMLink NIC found is correlated to all LECs

Verifying Driver Installation and Configuration 4-21

with card number 2, and the fourth ATMLink NIC found is recognized as a standby NIC. The ﬁrst ATMLink NIC to ﬂash during server initialization is card number 1, the next to ﬂash is card number 3, and the last to ﬂash is card number 2. The LEDs of standby NICs do not light up unless they become active NICs.

The direction in which the computer scans the PCI bus differs with the manufacturer.

load 3c975.lan cardnum=1 name=atm_1 elan=a (etc.) load 3c975.lan cardnum=3 name=atm_2 elan=b (etc.) load 3c975.lan cardnum=2 name=atm_3 elan=c (etc.) load 3c975.lan cardnum=2 name=atm_4 elan=d (etc.) load 3c975.lan cardnum=4 home=1,2,3 (etc.) bind ipx atm_1 (etc.) bind ipx atm_2 (etc.) bind ipx atm_3 (etc.) bind ipx atm_4 (etc.)

CAUTION: The load order of the driver determines which physical NICs are bound to which drivers. Changing the sequence of load commands in the AUTOEXEC.NCF ﬁle may necessitate changing the cabling of the physical NICs.

Verifying Driver Installation and Conﬁguration

Check server

installation

To verify that the driver has been properly loaded on the

driver

NetWare server, perform the following procedures:

1 At the system prompt, type:

load monitor

The NetWare Monitor screen appears.

2 Select LAN/WAN Information from the Available Options

menu.

The Available LAN Driver menu appears. If the 3C975.LAN driver is properly loaded, it appears on this menu.

3 Select 3C975.LAN and view the displayed statistics.

A functioning driver displays packets being sent and received.

4-22 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Check ability

to connect

over ATM link

To verify that the server is communicating over the ATM link, perform the following procedure:

1 Set up a NetWare client on an ELAN supported by the server

to be tested.

2 Log in or map to the server.

If you cannot log in or map to the server, the ATM link is not functional.

Editing the AUTOEXEC.NCF File

The experienced NetWare and ATM user can load network drivers, conﬁgure LECs, and set resilient server links by editing the AUTOEXEC.NCF ﬁle.

CAUTION: If you are using an editor other than the NCF ﬁles option editor accessed from the Installations Options menu of the NetWare install utility, be sure that it can save ﬁles in pure ASCII text format.

The four keywords required to conﬁgure an LEC are cardnum, channel, elan, and linktype. To make a NIC a standby NIC, use the linktype, channel, home, and cardnum keywords. In the 3Com

implementation of LAN emulation, each NetWare channel can be an LEC that uses ILMI by default to ﬁnd the LECS. The LEC may also be conﬁgured to contact another LECS or LES directly. Deﬁnitions and usage of keywords are listed in Table 4-2.

The sample AUTOEXEC.NCF ﬁle shown in Figure 4-13 represents the following scenario:

■ All 3Com-supplied NLMs are loaded before the network

drivers are loaded.

■ There are two 3Com ATMLink NICs installed in the system,

Card 1 and Card 2.

■ Card 1 is conﬁgured with two LECs.

■ Card 2 is conﬁgured as a standby NIC of Card 1.

Editing the AUTOEXEC.NCF File 4-23

Each LEC requires a separate load and bind command.

;LOAD NLMs AVAILABLE FROM THE 3COM ATMDISK ; load nbi.nlm load msm.nlm load ethertsm.nlm load tokentsm.nlm ; ;**** NETWARE ELAN CONFIGURATION EXAMPLE **** ; load 3c975.lan cardnum=1 frame=ethernet_802.2 linktype=1 channel=1 name=atm_1 elan=elan3372_1 ; load 3c975.lan cardnum=1 frame=ethernet_802.3 linktype=1 channel=2 name=atm_2 elan=elan3372_2 sig_version=1 max_frame_size=1514 ; bind ipx atm_1 net=6 bind ipx atm_2 net=7 ; ; ;********************************************* ;EXAMPLE OF A RESILIENT LINK ;CARD 2 IS A STANDBY NIC FOR CARD 1 ;ALWAYS LOAD THE ACTIVE NIC FIRST ;********************************************* load 3c975.lan cardnum=2 home=1 linktype=1 channel=3

Figure 4-13 Sample of AUTOEXEC.NCF File

CAUTION: The load order of LECs determines which physical

NICs are bound to which LECs. Changing the sequence of load commands in the AUTOEXEC.NCF ﬁle may necessitate changing the cabling of the physical NICs. See the section “NetWare Card Numbers and Multiple Physical NICs” for further information.

4-24 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Do not use the bind command for a standby NIC, or else NetWare will make it an active NIC. Always load an active NIC before its standby NIC.

Table 4-2 describes the NetWare keywords to use when editing the AUTOEXEC.NCF ﬁle. Defaults are shown in bold.

Table 4-2 NetWare Keywords

Range of Values

Keyword

Required Keywords

cardnum (card number)

channel 1–64 Assign each LEC and standby NIC in

ELAN

(ELAN name)

linktype 1 or 2 1=Ethernet, 2=token ring. All LECs

Optional Keywords

home 1, 2, 3, 4 If cardnum=3 and home=1,2 then

max_frame _size

(maximum frame size for Ethernet and token ring)

frame ethernet_802.2

(continued)

(Default in Bold)

1, 2, 3, 4 Assign each physical NIC a unique

1- to 32-character ASCII string

60–9232 The default is 1514 for Ethernet frame

ethernet_802.3 ethernet_II ethernet_SNAP token_ring token_ring_SNAP

Usage Rules

card number.

the system a unique channel number. There are 64 possible LECs (16 per NIC, 4 NICs per system).

ELAN names should match ELAN names configured on the ATM switch.

with the same card number must have the same link type. A standby NIC must have the same link type as its active NICs.

NIC 3 is a standby NIC for NIC 1 and NIC 2.

size. Use 4542 for 4 Mbps token ring, and 9232 for 16 Mbps token ring. All LECs with the same card number must have the same maximum frame size. End stations with different maximum frame sizes cannot communicate.

The driver defaults to the 802.2 frame type.

Editing the AUTOEXEC.NCF File 4-25

Table 4-2 NetWare Keywords (cont’d)

Range of Values

Keyword

lec_conﬁg_mode

(LEC configuration mode)

lecs_np

(LECS network prefix)

lecs_up

(LECS user part)

les _np

(LES network prefix)

les_up

(LES user part)

maxvcc

(maximum number of virtual channel circuits)

vpivci

(VPI/VCI range)

ilmi_vpi

(VPI for ILMI)

ilmi_vci

(VCI for ILMI)

rate 1–155 Sets the maximum bandwidth in Mbps

sig_version

(signaling version)

(Default in Bold)

1, 2 1=Automatic (uses ILMI or

Default is 13-byte network portion of ATM Forum Well-known Address.

00a03e00000100 is default

26-character ASCII string (13 hex digits)

14-character ASCII string (7 hex digits)

1–1024 The default value is 1,024 VCCs. With

0, 1, 2, 3 0=0/12 bits (default)

Depends on ATM switch settings

0, 1 0=UNI v3.0

Usage Rules

user-supplied LECS address) 2=Manual (must supply address for LES or LECS when using this option)

Use the 13-byte network prefix of the switch on which the target LECS resides.

Use the 7-byte user part of the 20-byte ATM address of the target LECS.

Use the 13-byte network prefix of the switch on which the target LES resides.

Use the 7-byte user part of the 20-byte ATM address of the target LES.

four NICs, the maximum number of open VCCs is 4,096.

1=1/11 bits 2=2/10 bits 3=8/4 bits Be sure that the VPI/VCI range is the same for all installed NICs in the system.

The default value is 0.

The default value is 16.

available to an LEC.

1=UNI v3.1 (default) Make sure that all installed NICs in the system use the same signaling version.

4-26 CHAPTER 4: NETWARE SERVER DRIVER INSTALLATION

Removing an LEC from NetWare

To remove an LEC from the AUTOEXEC.NCF ﬁle, follow these steps:

1 From the system prompt, enter the command:

load install

The Installation Options screen shown in Figure 4-1 appears.

2 Select NCF ﬁles options.

This opens the AUTOEXEC.NCF ﬁle for editing.

3 Delete the load and bind commands of the ELAN that you

want to remove.

The 3C975.LAN driver name can appear in either the load or bind commands as follows:

load 3c975.lan cardnum=1 frame=ethernet_802.2 linktype=1 channel=1 name=atm_1 elan=elan3372_1 vpivci=2 SIG_VERSION=1 max_frame_size=1514 ; bind ipx atm_1 net=6

4 Save and exit the AUTOEXEC.NCF ﬁle.

5 Exit the NetWare install utility.

The load order of the driver determines which physical NICs are bound to which drivers. Changing the sequence of load commands in the AUTOEXEC.NCF may necessitate changing the cabling of the physical NICs. See the section “NetWare Card Numbers and Multiple Physical NICs” for further information.

Installing and Running the ATMLink Utility for Windows NT

ATMLINK UTILITY

This chapter describes the Windows NT and Novell NetWare versions of the 3Com ATMLink utility.

The ATMLink utility reads and displays read-only ELAN connection statistics and NIC conﬁguration parameters. Active connection statistics are updated every 5 seconds. The utility can also reset the network driver of individual NICs.

The ATM utility is shipped in the root directory of the ATMDisk diskette for Windows NT as the ﬁle ATMUTIL.EXE. The ATMLink utility ﬁles are copied automatically to the System32 subdirectory during driver installation.

To run the ATMLink utility, perform the following procedure:

1 Add a new Program Item and ATMLink icon in the

Program Group of your choice.

2 Double-click the ATMLink icon to launch the ATMLink utility.

The ATMLink utility windows appears, as shown in Figure 5-1.

5-2 CHAPTER 5: ATMLINK UTILITY

Figure 5-1 ATMLink Utility Windows

ATMLink Utility Field Descriptions

The ATMLink utility displays information for correctly installed ATMLink NICs and LAN emulation clients (LECs).

ELAN Information

To view ELAN information, click the name of the ELAN on the directory tree in the left portion of the window, as shown in Figure 5-2.

ATMLink Utility Field Descriptions 5-3

Figure 5-2 ELAN Information Window

Table 5-1 explains the Windows NT ELAN information ﬁelds.

Table 5-1 Windows NT ELAN Information Fields

Field Description

ELAN Name Name of the ELAN, as configured by the user or supplied by the LES

MAC Address MAC address of the selected ELAN (as an increment of the NIC base

Configure Mode ■ Automatic—ATMLink LEC uses ILMI to connect with the LES

LES ATM Address LES address used by ATMLink LEC when Configure Mode is set to

LECS ATM Address LECS address used by ATMLink LEC when Configure Mode is set to

State ■ Down—ATMLink LEC is not joined to an ELAN

Link Type ■ Ethernet

MAC address)

■ Automatic LECS—ATMLink LEC uses the ATM Forum Well-known

Address or another ATM address to connect with the LECS

■ Manual—ATMLink LEC connects to LES directly

Manual

Automatic LECS

■ Initializing—ATMLink LEC is joining an ELAN

■ Operational—ATMLink LEC is joined to an ELAN

■ Token ring

5-4 CHAPTER 5: ATMLINK UTILITY

NIC Connection Statistics

To view NIC connection statistics, click the name of the NIC on the directory tree in the left portion of the window, and then click the Connections Stats tab in the right portion of the window, as shown in Figure 5-3.

Figure 5-3 Connection Statistics Window

NIC connection statistic ﬁelds are explained in Table 5-2.

Table 5-2 Windows NT Connection Statistics Fields

Field Displayed Value

VCI Numeric virtual circuit identifier of the indicated virtual circuit

VPI Numeric virtual path identifier of the indicated virtual circuit

VCC Type Type of virtual channel connection used by the ATMLink LEC

■ PVC_P2P_CTRL—permanent virtual circuit, point to point, control

■ PVC_P2P_DATA—permanent virtual circuit, point to point, data

■ SVC_P2P_CTRL—switched virtual circuit, point to point, control

■ SVC_P2P_DATA—switched virtual circuit, point to multipoint, data

■ SVC_P2MP_CTRL—switched virtual circuit, point to multipoint, control

■ SVC_P2MP_DATA—switched virtual circuit, point to multipoint, data

RxBytes Cumulative total of bytes received since the utility was initialized

TxBytes Cumulative total of bytes transmitted since the utility was initialized

(continued)

ATMLink Utility Field Descriptions 5-5

Table 5-2 Windows NT Connection Statistics Fields (continued)

Field Displayed Value

RxBytes/sec Average number of bytes received per second over a 5-second sampling

TxBytes/sec Average number of bytes transmitted per second, over a 5-second

RxCells Cumulative total of ATM cells received since initialization of the utility

TxCells Cumulative total of ATM cells transmitted since initialization of the utility

RxCells/sec Average number of ATM cells received per second over a 5-second

TxCells/sec Average number of ATM cells transmitted per second, over a 5-second

interval

sampling interval

sampling

NIC Information

To view NIC information, click the name of a NIC on the directory tree in the left portion of the window, and then click the NIC Information tab in the right portion of the window, as shown in Figure 5-4.

Figure 5-4 NIC information Window

The NIC Information screen displays the conﬁguration parameters of the selected physical NIC.

5-6 CHAPTER 5: ATMLINK UTILITY

The bus number, slot number, and IRQ values are set by the system BIOS. The maximum number of VCCs is preset by the network driver. All other values are set by using the ATMLink install utility. See Chapter 3 for more information on conﬁguring and reconﬁguring NICs and ELANs.

Table 5-3 describes the NIC information ﬁelds.

Table 5-3 Windows NT NIC Information Fields

Field Displayed Values

PCI Bus Number Number of the PCI bus on which the selected NIC is installed

PCI Slot Number Number of the PCI slot into which the selected NIC is inserted

IRQ Level Interrupt request level assigned to the selected NIC by the

Max Number of VCC 1024

VPI/VCI Range ■ 0 bits VPI, 12 bits VCI

Signaling Version ■ UNI 3.0

Max Frame Size ■ 1514—default value for Ethernet link type

Number of ELANs 0–16—number of LECs configured on selected NIC

Resiliency ■ Primary—the selected NIC is an active NIC

Card State ■ Link up

operating system

■ 1 bits VPI, 11 bits VCI

■ 2 bits VPI, 10 bits VCI

■ 4 bits VPI, 8 bits VCI

■ UNI 3.1

■ 4542—default value for 4 Mbps token ring link type

■ 9232—default value for 16 Mbps token ring link type

■ Standby—the selected NIC is a standby NIC

■ Link down

Reset

Selecting Reset from the Control menu reinitializes the network driver for the selected NIC. All link and ATM open connections of the NIC are momentarily lost, but reestablished when the driver reactivates.

Installing and Running the ATMLink Utility for Novell NetWare 5-7

Use the Reset option if the NIC appears to be unresponsive.

To access the Reset option, select Reset from the Control menu, as shown in Figure 5-5.

Figure 5-5 Reset Option for Windows NT

Installing and Running the ATMLink Utility for Novell NetWare

The ATMLink utility is shipped as the 3C975UTL.NLM ﬁle in the root directory of the ATMDisk diskette for Novell NetWare.

The ATMLink utility for NetWare can display information for only one NIC at a time.

To install and run the ATMLink Utility, perform the following procedure:

1 Copy the ﬁle named 3C975UTL.NLM from the

ATMDisk diskette to the NetWare server subdirectory.

2 From the server prompt, type:

load 3C975UTL

5-8 CHAPTER 5: ATMLINK UTILITY

The ATMLink Utility Select a NIC screen appears, as shown in Figure 5-6.

Figure 5-6 NetWare ATM Utility Select a NIC Screen

3 Use the arrow keys to select an installed ATMLink NIC, and

then press [Enter].

The NIC number shown in Figure 5-6 is the NetWare card number.

The ATMLink utility main menu appears, as shown in Figure 5-7.

Figure 5-7 NetWare ATMLink Utility Main Menu

ATMLink Utility Menu Options 5-9

ATMLink Utility Menu Options

Use the arrow keys to select from the following options:

■ NIC Information

■ VCC Statistics

■ ELAN Statistics

■ Reset NIC

■ Quit

Press [Enter] to display the selected information.

NIC Information

The NIC Information screen, as shown in Figure 5-8, displays the conﬁguration parameters of the selected physical NIC.

The bus number, slot number, and IRQ values are set by the system BIOS. All other values are set through the install utility or by manually editing the AUTOEXEC.NCF ﬁle. See Chapter 4 for details.

Figure 5-8 NetWare NIC Information Screen

5-10 CHAPTER 5: ATMLINK UTILITY

Table 5-4 lists the range of values that can be displayed on the NIC Information screen.

Table 5-4 NetWare NIC Information Fields

Field Displayed Value

Bus Number Number of the PCI bus on which the selected NIC is installed

Slot Number Number of the PCI slot into which the selected NIC is inserted

IRQ Interrupt request level assigned to the selected NIC by the

Maximum VCC 1024—The maximum number of open VCCs per system

VPI/VCI Range ■ 0 bits VPI, 12 bits VCI

UNI Version ■ UNI 3.0

Max Frame Size 60–9232

operating system

■ 1 bits VPI, 11 bits VCI

■ 2 bits VPI, 10 bits VCI

■ 4 bits VPI, 8 bits VCI

■ UNI 3.1

■ 1514—default value for Ethernet link type

■ 4542—default value for 4 Mbps token ring link type

■ 9232—default value for 16 Mbps token ring link type

VCC Statistics

The VCC Statistics screen, shown in Figure 5-9, displays a table of the current open connections established between the selected NIC and the ATM network.

ATMLink Utility Menu Options 5-11

Figure 5-9 VCC Statistics Screen

Table 5-5 describes the NetWare VCC statistics ﬁelds.

Table 5-5 NetWare VCC Statistics Screen

Field Description

VCI Numeric virtual circuit identifier of the indicated virtual circuit

VPI Numeric virtual path identifier of the indicated virtual circuit

VCC Type Indicates the type of virtual channel connection used by the ATMLink LEC

■ PVC P2P CTRL—permanent virtual circuit, point to point, control

■ PVC P2P DATA—permanent virtual circuit, point to point, data

■ SVC P2P CTRL—switched virtual circuit, point to point, control

■ SVC P2P DATA—switched virtual circuit, point to multipoint, data

■ SVC P2MP CTRL—switched virtual circuit, point to multipoint, control

■ SVC P2MP DATA—switched virtual circuit, point to multipoint, data

In Bytes Cumulative total of bytes received since the utility was initialized

Out Bytes Cumulative total of bytes transmitted since the utility was initialized

In bps Average number of bits received per second over a 5-second sampling

Out bps Average number of bits received per second over a 5-second sampling

interval

5-12 CHAPTER 5: ATMLINK UTILITY

ELAN Statistics

When you select the ELAN Statistics option from the main menu, the ATMLink utility displays two screens, the Currently Conﬁgured LECs screen, as shown in Figure 5-10, and the LEC Statistics screen, as shown in Figure 5-11.

The Currently Conﬁgured LECs screen displays the ELAN names of all LECs conﬁgured on the selected NIC. See Chapter 4 for information on ELAN names and conﬁguring LECs.

Figure 5-10 Currently Conﬁgured LECs Screen

Figure 5-11 LEC Statistics Screen

ATMLink Utility Menu Options 5-13

The LEC Statistics screen displays conﬁguration information and the operational status of the selected ELAN.

Check the State ﬁeld of the LEC Statistics screen to verify that an LEC has successfully joined an ELAN.

Table 5-6 describes the ﬁelds displayed in the LEC Statistics screen.

Table 5-6 LEC Statistics Fields for NetWare

Field Description

Instance The channel number assigned to the LEC

State ■ Operational—LEC is joined to an ELAN

■ Down—LEC is not joined to an ELAN

■ Initializing—LEC is in process of joining an ELAN

Type ■ Ethernet—LEC is configured to join an Ethernet ELAN

■ Token ring—LEC is configured to join a token ring ELAN

Config. Mode ■ Automatic—LEC uses ILMI to obtain LECS address

■ Manual—LEC uses the ATM Forum Well-known Address, or

another address to obtain LECS address, or LEC connects directly with LES

MAC Address MAC address assigned to LEC; it is an increment of the NIC base

LES Address LES address used by LEC; specified when the Configuration mode is

LECS Address Address of LECS used by LEC upon initialization

MAC address

set to manual

Reset NIC

Quit

Selecting Reset from the main menu reinitializes the network driver for the selected NIC. All link and ATM open connections of the NIC are momentarily lost but reestablished when the driver reactivates.

Use the Reset option if the NIC appears to be unresponsive.

Select Quit to exit the ATMLink utility for NetWare.

Overview

■ Detects and reports the PCI-bus slot number, interrupt

■ Tests the operation of the 3C975 ATMLink NIC on-board

■ Displays EEPROM-based device information for each

DIAGNOSTICS AND TROUBLESHOOTING

This chapter describes how to use the ATMLink diagnostic utility program shipped on the ATMDisk

The ATMLink diagnostic utility and its associated help ﬁles are in the root directory of the AT MD is k diskettes. The diagnostic

utility is an MS-DOS the following key functions:

request level, base MAC address, and other conﬁguration data of all installed 3Com ATMLink physical NICs

circuitry

3C975 ATMLink NIC

program (3C975CFG.EXE) that performs

diskettes.

The diagnostic test suite is divided into two groups, the internal and external tests. Six internal tests check the integrity of the segmentation and reassembly (SAR) controller and associated components. The external loopback test checks the integrity of the on-board transceiver and cable connectors. To run the external loopback test, you must use a loopback plug. To construct a loopback plug, see the section “Constructing Loopback Plugs” later in this chapter.

Any individual test in the suite can be enabled or disabled. These test conﬁguration settings can be saved to disk. Test results can be viewed on-screen or printed.

6-2 CHAPTER 6: DIAGNOSTICS AND TROUBLESHOOTING

When to Use the Diagnostic Utility

3Com suggests that you run the diagnostic utility immediately after installing the 3C975 ATMLink NIC, and before installing the network drivers.

Use the diagnostic utility in the following cases:

■ To verify that the hardware works before the network drivers

are installed

If the NIC or the PCI bus is not functioning properly, you save the trouble of loading and conﬁguring the network driver and ELANs.

■ If you want to correlate the PCI slot number with the MAC

address of a 3C975 ATMLink NIC

You need this information for installing and conﬁguring Windows NT network drivers when there is more than one physical NIC in the system.

■ If the network drivers fail to load

The internal and external tests determine whether the components on the NIC are functioning correctly.

■ If there is no network activity, or if irregular activity is reported

by the server or the switch

■ If you require speciﬁc manufacturer’s information about the

3C975 ATMLink NIC

The diagnostic utility reports the product revision number, date of manufacture, SRAM size, EEPROM size, and the MAC address of each installed 3C975 ATMLink NIC.

■ If you require speciﬁc conﬁguration information about the

3C975 ATMLink NIC

The diagnostic utility reports the device number, bus number, slot number, I/O port address, and interrupt request level (IRQ).

How to Use the Diagnostic Utility 6-3

How to Use the Diagnostic Utility

The diagnostic utility is a DOS program. It can be run directly from the ATMDisk diskette or copied, with its help ﬁle, to the system hard drive and run from a directory of your choice. The diagnostic utility must be run from DOS with no network drivers loaded. Table 6-1 describes the suggested method of accessing DOS from your network operating system (NOS).

The diagnostic utility cannot be run from an MS-DOS window.

Table 6-1 Accessing MS-DOS

NOS Method of Accessing DOS

Novell NetWare Down the server and exit to DOS.

Windows NT Reboot the system with an MS-DOS system diskette

Starting the Diagnostic Utility

This guide documents the internal and external test procedures separately.

(MS-DOS version 6.20 or later).

Make sure that the 3C975 ATMLink NIC is ﬁrmly seated in a functional PCI slot before running the diagnostic utility. (See Chapter 2 for hardware installation details.)

To run the diagnostic utility directly from the ATM Di sk diskette, perform the following procedure:

1 Shut down all applications and processes running on the

Windows NT or NetWare system, and exit to DOS as described in Table 6-1.

2 Insert the appropriate AT MD is k diskette in the ﬂoppy drive.

3 Change to the root directory of the ﬂoppy drive and type:

3C975CFG.EXE [Enter]

6-4 CHAPTER 6: DIAGNOSTICS AND TROUBLESHOOTING

The diagnostic utility main screen appears, as shown in Figure 6-1.

Figure 6-1 Diagnostic Utility Main Screen

Navigating Within the Diagnostic Utility

Use a mouse (if a mouse driver is loaded) or the keyboard to access the diagnostic utility’s character-based interface. In this guide it is assumed that a mouse is used. Keyboard commands are described in Table 6-2.

Table 6-2 Function Key Descriptions of the Diagnostic Utility

Keystroke Action

[Esc] Exit to previous screen

[Tab] Move cursor to next field

[Shift]+[Tab] Move cursor to previous field

[Alt]+[Highlighted letter] Execute indicated function

Up and Down arrow keys Move cursor up and down a list

[F1] Display Help screen for highlighted item

[F3] Exit to MS-DOS

[F5] Display Run Tests screen

[F6] Display Test Setup screen

[F8] Display NIC Information screen

[F9] Display NIC Statistics screen

[Esc] Exit to previous screen

Running the Internal Tests

The internal tests check the integrity of the on-board ASIC circuitry. The types of tests and number of test repetitions are set to the default values (that is, Internal tests enabled, External test disabled, and 10 repetitions per test).

To run all the internal tests, perform the following procedure:

1 Physically disconnect the 3Com ATMLink NICs from the

network.

2 From the Select menu item on the main screen, select the

NIC to be tested.

The Select menu is disabled if there is only one physical NIC installed in the system.

The MAC address identiﬁes the physical NIC being tested. The MAC address is the 12-digit hexadecimal number on the small bar code label on the component side of the NIC.

How to Use the Diagnostic Utility 6-5

3 From the Test menu, select Test Setup.

The Test Setup screen appears, as shown in Figure 6-2.

Figure 6-2 Test Setup Screen

6-6 CHAPTER 6: DIAGNOSTICS AND TROUBLESHOOTING

4 Verify that all the internal tests are enabled.

If they are not, click the Enable All button to set all internal tests to Enabled.

5 In the Test Select box, select Ext Loopback Test and verify

that the External Loopback Test is disabled.

If the External Loopback Test is not disabled, click Disable All.

6 Click OK.

The main screen shown in Figure 6-1 reappears.

7 From the Test menu, select Run Tests.

The Run Tests screen appears, as shown in Figure 6-3.

Figure 6-3 Run Tests Screen

8 Click Start to run the internal tests.

9 If any test fails, go to the section “What to Do If a Test Fails”

later in this chapter.

How to Use the Diagnostic Utility 6-7

Running the External Loopback Test

Run the External Loopback Test to check the integrity of the on-board transceiver and cable connectors. To run the External Loopback Test, you must use a loopback plug. For instructions on constructing a loopback plug, see the section “Constructing Loopback Plugs” later in this chapter.

CAUTION: Do not run the External Loopback Test when the 3C975 ATMLink NIC is cabled to another device.

To run the external loopback test only, perform the following procedure:

1 Insert the loopback plug into the 3Com ATMLink NIC.

2 From the Select menu on the diagnostic utility main screen,

select the 3C975 ATMLink NIC to be tested.

The PCI slot number or the MAC address of the NIC identiﬁes the physical NIC being tested. The MAC address is a 12-digit hexadecimal number on the small bar code label on the component side of the NIC.

3 Select Test Setup from the Test menu.

The Test Setup screen appears, as previously shown in Figure 6-2.

4 Click Disable All to disable all internal tests.

5 In the Test Select Box, select Ext Loopback Test.

The External Loopback Test screen appears, as shown in Figure 6-4.

6-8 CHAPTER 6: DIAGNOSTICS AND TROUBLESHOOTING

Figure 6-4 External Loopback Test Screen

6 Verify that the External Loopback Test is enabled.

If the External Loopback Test is disabled, click Enable All.

7 Click OK.

The main screen shown in Figure 6-1 reappears.

8 From the Test menu, select Run Tests.

The Run Tests screen appears, as shown in Figure 6-5.

Figure 6-5 Run Tests Screen

9 Click Start to run the External Loopback Test.

The test runs ten times by default. If you want to change the number of test repetitions, click Test Setup.

10 If the test fails, go to the section “What to Do If a Test Fails”

later in this chapter.

11 Remove the loopback plug and insert the network cable.

Viewing Test Results

The Test Results screen shown in Figure 6-6 appears after the tests have been run, showing the number of times each test was run and the pass/fail results.

Viewing Test Results 6-9

Figure 6-6 Test Results Screen

6-10 CHAPTER 6: DIAGNOSTICS AND TROUBLESHOOTING

NIC Statistics

Internal and external test results are also reported in the form of NIC statistics. To view the NIC Statistics screen, shown in Figure 6-7, click Stats on the Run Tests screen.

Figure 6-7 NIC Statistics Screen

Individual Test Information

To run a test continuously, disable the Halt on Error option. The test continues to gather statistics and does not stop when a failure occurs. When the test is concluded, the Test Information screen displays the number of successful completions and failures.

To view the Test Information screen, shown in Figure 6-8, select a test from the Run Tests screen and click Zoom.

Figure 6-8 Test Information Screen

Changing the Test Setup

In rare cases, such as intermittent faults, you may wish to change the default values of the diagnostic utility. Otherwise, no changes to defaults are necessary in order to detect the most common error conditions.

Changing the Test Setup 6-11

Enabling and Disabling Individual Tests

To enable and disable individual tests, follow these steps:

1 From the diagnostic utility main screen, select Test Setup

from the Test menu.

2 Use the mouse or [Tab] and arrow keys to select any of the

ﬁelds within the Test Setup box.

3 Press the [Space Bar] to enable or disable the selected test.

4 When you are satisﬁed with the new test setup, click OK.

5 To run the tests, choose Run Tests from the Test menu and

click Start.

6-12 CHAPTER 6: DIAGNOSTICS AND TROUBLESHOOTING

Changing the Number of Repetitions

All tests are set by default to run 10 times and to halt when an error occurs. To change the number of repetitions, enter a new value in the Times ﬁeld of the Repetitions box of the Test Setup screen (Figure 6-2).

Changing Action on Error

To test for suspected intermittent errors, clear the Halt On Error option and select Continuous.

File Options

The File Options button appears in the Test Setup and Run Tests screens. Use File Options to save, load, and print your test setup conﬁgurations and results.

Test setup conﬁguration data is saved to a ﬁle named 3C975.TST. This ﬁle contains the following test setup parameters:

■ Halt on error (yes or no)

■ Number of test repetitions

■ Status of internal and external NIC tests (enable or disable)

Load the 3C975.TST conﬁguration ﬁle to set the parameters of the current diagnostic test to those saved in the ﬁle.

Test results are saved to an ASCII text ﬁle named 3C975.RPT. All subsequent saved test results are appended to this ﬁle and are not saved separately.

A sample test result report is shown in Figure 6-9.

3COM ATMLINK 155 PCI User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual