3com CoreBuilder 5000 EtherFlex Module User Guide

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CoreBuilder™ 5000

EtherFlex Module User Guide

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Document Number 17-00619-3 Published May 1997

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 3Com Corporation, 1997. All rights reserved. No part of this documentation may be reproduced in any form or by any means, or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Corporation. Portions of this document are reproduced in whole or part with permission from third parties.

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 products or programs 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.

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 the 3Com Corporation 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 Unpublished rights reserved under the copyright laws of the United States.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 hardcopy 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 sent to you.

Federal Communications Commission Notice

This equipment was tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you must correct the interference at your own expense.

Canadian Emissions Requirements

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

EMC Directive Compliance

This equipment was tested and conforms to the Council Directive 89/336/EEC for electromagnetic compatibility. Conformity with this directive is based upon compliance with the following harmonized standards:

EN 55022 – Limits and Methods of Measurement of Radio Interference EN 50082-1 – Electromagnetic Compatibility Generic Immunity Standard: Residential, Commercial, and

Light Industry Warning: This is a Class A product. In a domestic environment, this product may cause radio interference, in

which case you may be required to take adequate measures. Compliance with this directive depends on the use of shielded cables.

Low Voltage Directive Compliance

This equipment was tested and conforms to the Council Directive 72/23/EEC for safety of electrical equipment. Conformity with this directive is based upon compliance with the following harmonized standard:

EN 60950 – Safety of Information Technology Equipment

VCCI Class 1 Compliance

This equipment is in the 1st Class category (information equipment to be used in commercial or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment aimed at preventing radio interference in commercial or industrial areas.

Consequently, when the equipment is used in a residential area or in an adjacent area, radio interference may be caused to radio and TV receivers, and so on.

Read the instructions for correct handling.

Fiber Cable Classification Notice

Use this equipment only with fiber cable classified by Underwriters Laboratories as to fire and smoke characteristics in accordance with Section 770-2(b) and Section 725-2(b) of the National Electrical Code.

UK General Approval Statement

The CoreBuilder 5000 Integrated System Hub and ONline System Concentrator are manufactured to the International Safety Standard EN 60950 and are approved in the U.K. under the General Approval Number NS/G/12345/J/100003 for indirect connection to the public telecommunication network.

Trademarks

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com, Boundary Routing, CardFacts, EtherLink, LANplex, LANsentry, LinkBuilder, NETBuilder, NETBuilder II, NetFacts, Parallel Tasking, SmartAgent, TokenDisk, TokenLink, Transcend, TriChannel, and ViewBuilder are registered trademarks of 3Com Corporation.

3TECH, CELLplex, CoreBuilder, EtherDisk, EtherLink II, FDDILink, MultiProbe, NetProbe, and ONline are trademarks of 3Com Corporation.

3ComFacts is a service mark of 3Com Corporation. The 3Com Multichannel Architecture Communications System is registered under U.S. Patent

Number 5,301,303. AT&T is a registered trademark of American Telephone and Telegraph Company. Banyan and VINES are registered trademarks of Banyan Systems Inc. CompuServe is a registered trademark of CompuServe, Inc. DEC, DECnet, DELNI, POLYCENTER, VAX, VT100, VT220, and the Digital logo are trademarks of Digital

Equipment Corporation. Hayes is a registered trademark of Hayes Microcomputer Products. OpenView is a registered trademark of Hewlett-Packard Company. Intel is a registered trademark of Intel Corporation. AIX, IBM, and NetView are registered trademarks of International Business Machines Corporation. Microsoft, MS-DOS, Windows, Windows 95, and Windows NT are registered trademarks of

Microsoft Corporation. V30 is a trademark of NEC Corporation. NetWare and Novell are registered trademarks of Novell, Incorporated.

IPX is a trademark of Novell, Incorporated. OSF and OSF/Motif are registered trademarks of Open Software Foundation, Inc. ONC, OpenWindows, Solaris, Solstice, Sun, Sun Microsystems, SunNet Manager, and SunOS are trademarks

of Sun Microsystems, Inc.

iii

SPARCstation is a trademark licensed exclusively to Sun Microsystems Inc. OPEN LOOK is a registered trademark of Unix System Laboratories, Inc. UNIX is a registered trademark of X/Open Company, Ltd. in the United States and other countries. Other brand and product names may be registered trademarks or trademarks of their respective holders.

HOW TO USE THIS GUIDE

Audience 1 Structure of This Guide 2 Document Conventions 3 Related Documents 4

3Com Documents 4 Reference Documents 4

1 INTRODUCTION

EtherFlex Module Description 1-1

EtherFlex Module Physical Description 1-2 EtherFlex Module Features 1-4 EtherFlex Module Benefits 1-4

EtherFlex Module I/O Cards 1-5

I/O Card Features and Benefits 1-7 I/O Card Theory of Operation 1-7 Maximum Number of I/O Cards Per Module 1-8

I/O Card Descriptions 1-8

BNC 10BASE-2 I/O Card Description 1-9

BNC 10BASE-2 I/O Card Features 1-9

RJ-45 10BASE-T I/O Card Description 1-10

RJ-45 10BASE-T I/O Card Features 1-10

Male AUI I/O Card Description 1-11

Male AUI I/O Card Features 1-11

Female AUI I/O Card Description 1-13

Understanding Female AUI I/O Card Limitations 1-13

10BASE-FB/FL I/O Card Description 1-14

10BASE-FB/FL I/O Card Features 1-14 Sample Etherflex Module Application 1-15 Where to Go From Here 1-16

2 DESIGNING AND EXPANDING THE NETWORK

Understanding General Network Configuration Rules 2-1

Before Configuring Your Network 2-2 Basic Network Rules 2-2 LAN Product Distances 2-4

Configuring Fiber Backbone, Twisted Pair to-the-Desk 2-5

Fiber Backbone Configuration Rules 2-5 Verifying Fiber Backbone Configuration 2-7

Configuring Twisted Pair Backbone, Twisted Pair to-the-Desk 2-7

Twisted Pair Backbone Configuration Rules 2-8

Verifying a Twisted Pair Backbone Configuration 2-9 Connecting an Ethernet Segment Using a Male AUI I/O Card 2-10 Using Patch Panels 2-11 Setting Redundant Links 2-12

Setting Redundancy Between Two Ports on One EtherFlex

Module 2-13

Setting Redundancy Between Two EtherFlex Modules 2-13 Where to Go From Here 2-14

3 INSTALLING THE MODULE AND I/O CARDS

Precautionary Procedures 3-2 General Installation Rules 3-3 Quick Installation 3-4 Unpacking Procedures 3-5

Before You Begin 3-5 Setting the DIP Switches 3-6

DIP Switch Features 3-6

Setting the DIP Switches 3-7

DIP Switch Definition 3-8 BNC 10BASE-2 I/O Card Jumpers 3-9

BNC 10BASE-2 I/O Card Jumper Settings 3-10

BNC 10BASE-2 I/O Card Termination 3-11

External Termination 3-11 Internal Termination 3-11

Setting BNC 10BASE-2 I/O Card Termination 3-11 BNC 10BASE-2 I/O Card Shield Grounding 3-12 Storing the BNC 10BASE-2 I/O Card Jumper 3-13

Connecting Module Daughter Cards 3-14 Installing I/O Cards 3-16

General Installation Rules 3-16 Installing I/O Cards 3-17

Installing Single-Height I/O Cards 3-17 Installing Double-Height I/O Cards 3-22

Replacing Existing I/O Cards 3-25

Replacing a Single-Height I/O Card 3-25

Replacing a Double-Height I/O Card 3-26 Installing the Module 3-27 Monitoring the Front Panel 3-30

Monitoring Module Status 3-30 Monitoring Port Status Through LEDs 3-30

Verifying LED and Network Operation 3-32

Using the CoreBuilder 5000 Controller Module to Verify Bi-Color LED Operation 3-33

Using the DMM to Verify Network Connections 3-33

Where to Go From Here 3-34

4 CONFIGURING THE MODULE AND I/O CARDS

Configuration Overview 4-1 Configuring the EtherFlex Module and I/O Cards 4-2

Set Port Mode Commands 4-2

Enable/Disable/Shutdown Ports 4-2

Set Port Redundancy 4-3

Set Remote Diagnostics 4-4

Enable/Disable Link Integrity Command 4-5 Set Port Alert Filter Command 4-5 Set Port Auto Polarity Command 4-6 Set Port Squelch Command 4-6 Enable/Disable SQE Test Mode Command 4-7 10BASE-FB/FL Commands 4-7

Force 10BASE-FB/FL 4-7

Set Port Autosensing 4-8

Network Selection 4-8

Assigning Ports on a Module to the Network 4-9

Assigning a Daughter Card to a Network 4-9

vii

Showing Module Configurations 4-10

Show Module Command 4-10 Show Port Command 4-11

Status Information 4-12

Gathering Statistics 4-13

Gathering Repeater Statistics 4-14

Monitoring the Network 4-14

Monitor Command 4-14 Show Counter Command 4-15

Where to Go From Here 4-16

5 TROUBLESHOOTING

Troubleshooting Using the I/O Card Port Status LEDs 5-2 Technical Assistance 5-3 Where to Go From Here 5-3

A SPECIFICATIONS

Electrical Specifications A-2 Environmental Specifications A-3 Mechanical Specifications A-3 General Specifications A-4 I/O Card Connectors and Cables A-5

Twisted Pair Connectors A-6 Twisted Pair Cables A-6

Connecting Twisted Pair Cables A-7 BNC 10BASE-2 Connector and Cables A-7 Male AUI Connector and Cables A-7 Female AUI Connector and Cables A-7

viii

B TECHNICAL SUPPORT

Online Technical Services B-1

World Wide Web Site B-2 3Com Bulletin Board Service B-2

Access by Analog Modem B-2

Access by Digital Modem B-2 3ComFacts Automated Fax Service B-3 3ComForum on CompuServe Online Service B-3

Support From Your Network Supplier B-4 Support From 3Com Corporation B-5 Returning Products for Repair B-6 Accessing the 3Com MIB B-6 Contacting 3Com Technical Publications B-7

INDEX

3COM CORPORATION LIMITED WARRANTY

FIGURES

1-1 CoreBuilder 5000 EtherFlex Module Faceplate 1-3 1-2 I/O Cards Installed in an EtherFlex Module 1-6 1-3 BNC 10BASE-2 I/O Card Faceplate and LEDs 1-9 1-4 RJ-45 10BASE-T I/O Card Faceplate and LEDs 1-11 1-5 Male AUI I/O Card Faceplate and LEDs 1-12 1-6 Female AUI I/O Card Faceplate and LEDs 1-13 1-7 10BASE-FB/FL I/O Card Faceplate and LEDs 1-15 1-8 EtherFlex Application With RJ-45 10BASE-T and

BNC 10BASE-2 I/O Cards 1-16

2-1 Sample Configuration Distance Calculation 2-6 2-2 Example of a Twisted Pair Network 2-8 2-3 Ethernet Segment Connected to EtherFlex Module 2-10 2-4 Redundant Configurations 2-12 3-1 EtherFlex Module DIP Switch Location 3-7 3-2 BNC 10BASE-2 I/O Card Jumper Settings 3-10 3-3 BNC 10BASE-2 I/O Card Termination Options 3-12 3-4 Storing Jumper Caps 3-13 3-5 Location of Network Monitor Cards on the Module 3-15 3-6 Removing 1 Blank Faceplate 3-18 3-7 Removing the Standoff Screw From the Module 3-19 3-8 Inserting a Single-Height I/O Card 3-20

3-9 Attaching the Bracket to the Module Faceplate 3-21 3-10 Removing 2 Blank Faceplates 3-23 3-11 Installing a Double-Height I/O Card 3-24 3-12 Installing a CoreBuilder 5000 Module in a Hub 3-28 3-13 Opened and Closed Module Ejectors 3-29 3-14 EtherFlex Module RJ-45 Cable Connection 3-30 3-15 LED Location on Each Type of I/O Card 3-31

4-1 Remote Diagnostics Example 4-4

A-1 RJ-45 Connector Pinouts A-6 A-2 Female AUI Connector Pinouts A-7

TABLES

1-1 Maximum I/O Cards Supported by the EtherFlex Module 1-8

1-2 Female AUI I/O Card Limitations 1-14

2-1 Seven Basic Network Rules 2-2

2-2 LAN Product Equivalent Distances 2-4

3-1 Quick Installation Checklist 3-4

3-2 Network Selection DIP Switch Settings 3-8

3-3 EtherFlex Module I/O Card LED Interpretations 3-32

5-1 Port Status LED Troubleshooting 5-2

A-1 Power Requirements A-2 A-2 Environmental Specifications A-3 A-3 Mechanical Specifications A-3 A-4 General Specifications A-4 A-5 Female AUI Pin Assignments A-8

xiii

HOW TO USE THIS GUIDE

This guide explains how to install and operate the 3Com CoreBuilder guide also includes information on monitoring this module using a 3Com An appendix explains cabling and connector guidelines and specifications for the EtherFlex Module and I/O cards.

Before installing or using the EtherFlex Module, read Chapters 1, 2, and 3 of this guide for basic installation and operation instructions.

™

5000 EtherFlex Module and supported I/O cards. This



CoreBuilder 5000 Distributed Management Module (DMM).

Audience This guide is intended for the following people at your site:

■ Network manager or administrator

■ Hardware installer

2 HOW TO USE THIS GUIDE

Structure of This Guide

This guide contains the following chapters and appendix:

Chapter 1, Introduction – Introduces the functions and features of the CoreBuilder 5000 EtherFlex Module and I/O cards.

Chapter 2, Designing and Expanding the Network – Shows possible network configurations using the CoreBuilder 5000 Integrated System Hub and the CoreBuilder 5000 EtherFlex Module.

Chapter 3, Installing the Module and I/O Cards – Provides illustrated procedures for installing the EtherFlex Module into the CoreBuilder 5000 Integrated System Hub and installing the I/O cards onto the EtherFlex Module. Also shows front panel LEDs on each I/O card.

Chapter 4, Configuring the Module and I/O Cards – Describes the network management commands used to configure the module and I/O cards.

Chapter 5, Troubleshooting – Provides help in isolating and correcting problems that may arise when installing or operating the module and I/O cards.

Appendix A, Specifications – Provides electrical, environmental, and mechanical specifications and cabling and connector guidelines for the module and I/O cards.

Appendix B, Technical Support – Lists the various methods for contacting the 3Com technical support organization and for accessing other product support services.

Index

Document Conventions 3

Document Conventions

The following document conventions are used in this manual:

Convention Indicates Example

Courier text User input In the Agent Information Form,

enter MIS in the New Contact field.

System output After pressing the Apply button, the

Bold command string Path names Before you begin, read the

Text in angled brackets User-substituted

identifiers

Capitalized text in plain brackets

Italics Text emphasis,

Icon Notice Type Alerts you to...

Information note Important features or instructions

Keyboard entry by the user

document titles

system displays the message Transmitti ng data.

readme.txt file located in

/usr/s nm /age nts .

In the command above, substitute <rem_name> with the name of the remote machine.

Type your password and press [ENTER].

Ensure that you press the Apply button after you add the new search parameters.

Caution Risk of personal safety, system damage, or loss

Warning Risk of severe personal injury

of data

4 HOW TO USE THIS GUIDE

INTRODUCTION

This chapter describes the 3Com CoreBuilder™ 5000 EtherFlex Module (Model Number 6104M-MOD) and supported I/O cards.

EtherFlex Module Description

For more information on the 3Com System Hub, refer to the CoreBuilder 5000 Integrated System Hub Installation and Operation Guide.

This chapter contains the following sections:

■ EtherFlex Module Description

■ EtherFlex Module I/O Cards

■ I/O Card Descriptions

■ Sample Etherflex Module Application

■ Where to Go From Here

The CoreBuilder 5000 EtherFlex Module is a single-slot media module with a flexible architecture which allows you to populate the EtherFlex Module with various input/output (I/O) cards. This architecture allows you to mix and match front-end card types.

The CoreBuilder 5000 EtherFlex Module supports the ''mix and match'' capability with 5 types of field-installable I/O cards. By combining several I/O cards, you can create customized mixed-media solutions to meet your individual needs.



CoreBuilder 5000 Integrated

The EtherFlex Module:

■ Is per-port switchable to all 8 Ethernet backplane segments.

■ Supports up to 8 isolated networks.

1-2 CHAPTER 1: INTRODUCTION

■ Supports security through the 3Com CoreBuilder 5000 Private Line

Card (PLC). The PLC provides continuous eavesdropping and intrusion protection without affecting network performance. Up to 2 Private Line Cards may be connected.

■ Allows you to connect up to 2 CoreBuilder 5000 Ethernet Network

Monitor Cards for network management.

This sections also describes the following characteristics of the EtherFlex Module:

■ EtherFlex Module Physical Description

■ EtherFlex Module Features

■ EtherFlex Module Benefits

EtherFlex Module

Physical Description

The EtherFlex module has:

■ A single motherboard with connectors to support up to 4 I/O cards

■ Two connectors to support up to 2 daughter cards

The module faceplate has 4 openings (bays) with 2 removable brackets. The bays are populated with the I/O cards the EtherFlex Module supports.

The EtherFlex Module occupies 1 slot in the hub. Each I/O card in an EtherFlex module occupies 1 or 2 bays within the module (see Figure 1-1

An EtherFlex Module with no I/O cards installed contains 4 blank faceplates (see Figure 1-1

The module supports the following types of I/O cards:

■ Single-height – Occupies 1 bay (RJ-45 10BASE-T, BNC 10BASE-2,

10BASE-FB/FL)

■ Double-height – Occupies bays 1 and 2 or 3 and 4 (Male and

Female AUI)

EtherFlex Module Description 1-3

Figure 1-1 shows the EtherFlex Module with blank faceplates and no

I/O cards installed.

Removable bracket

Bays/ blank faceplates

Permanent bracket

Removable bracket

Figure 1-1 CoreBuilder 5000 EtherFlex Module Faceplate

1-4 CHAPTER 1: INTRODUCTION

EtherFlex Module

Features

The CoreBuilder 5000 EtherFlex Module provides the following features:

■ Network Security – Supports security through the private line card

(PLC). The PLC provides continuous eavesdropping and intrusion protection without impacting network performance.

■ Multiple Daughter Cards – Allow you to connect either network

monitor or private line cards for network management. The module supports the following configurations:

■ 2 Private Line Cards

■ 2 daughters cards

■ 1 card of each simultaneously

■ Scalable Network Management Architecture – Allows you to

gather Ethernet and Remote Network Monitoring (RMON) network statistics for any of the CoreBuilder 5000 backplane segments. Supports up to 2 network monitor cards (NMC) per module for in-depth monitoring of the network.

■ Network Statistics – All I/O cards provide support for Repeater

Management Information Base (MIB) statistics without the need for a network monitor card.

■ Remote Diagnostics Mode – Checks driver and receiver integrity.

EtherFlex Module

Benefits

The CoreBuilder 5000 EtherFlex Module provides the following benefits:

■ Flexibility to mix and match media types using field-installable

I/O cards.

■ Per-port switching to all 8 of the CoreBuilder 5000 backplane

segments and isolated segments. Supports up to 8 segments, simultaneously, in any combination.

■ IEEE Repeater Statistics-gathering for basic network monitoring

through the CoreBuilder 5000 security and network management architecture.

■ Offers high port density at a low cost per port.

■ Supports per-port activity and status LEDs.

■ Maintains its own inventory and power management information in

non-volatile RAM (NVRAM).

EtherFlex Module I/O Cards 1-5

EtherFlex Module I/O Cards

The EtherFlex Module supports several mixed-media I/O cards. All I/O cards are field-installable. However, you must remove the EtherFlex Module from the backplane to add, remove, or replace an I/O card on the module.

The following I/O cards are supported:

■ BNC 10BASE-2 (Model Number 6103D-BNC)

■ RJ-45 10BASE-T (Model Number 6104D-TPP)

■ Male AUI (Model Number 6103D-AUIM)

■ Female AUI (Model Number 6103D-AUIF)

■ 10BASE-FB/FL (Model Number 6102D-FIB)

This section contains the following sections:

■ I/O Card Features and Benefits

■ I/O Card Theory of Operation

■ Maximum Number of I/O Cards Per Module

1-6 CHAPTER 1: INTRODUCTION

Figure 1-2 shows an EtherFlex Module with three types of I/O cards

installed.

LEDs

BNC 10BASE-2 I/O Card

10BASE2

LEDs

RJ-45 10BASE-T I/O Card

LEDs

10BASET

LEDs

AUI-M

Make AUI I/O Card

Figure 1-2 I/O Cards Installed in an EtherFlex Module

EtherFlex Module I/O Cards 1-7

I/O Card Features

and Benefits

I/O Card Theory of

Operation

The CoreBuilder 5000 EtherFlex Module I/O cards provide the following features and benefits:

■ Multimedia Support – Flexibility to mix and match media types

using field-installable I/O cards.

■ Per-Port Switching – Per-port switching to all 8 of the CoreBuilder

5000 backplane segments and isolated segments. Supports up to 12 segments including backplane and isolated segments in any combination.

■ Automatic Partitioning – When the number of collisions or

duration of any collision exceeds a threshold, the I/O card automatically disables the port and then enables the port when the I/O card detects good data.

■ IEEE Repeater Statistics – Provides IEEE Repeater

statistics-gathering for monitoring the CoreBuilder 5000 security and network management architecture.

The EtherFlex Module I/O cards work as follows:

1 Each signal suffers a loss of power as it travels from transmitting device

to receiving device. The longer the cable length between transmitting and receiving devices, the weaker the signal becomes during transmission, thus lowering the chance that the receiving device can interpret the data correctly.

2 To compensate for a weak signal, repeaters bolster the signal as it

passes through the network.

3 Regenerative repeaters sample signals along a network to determine

whether they are above or below the voltage level at which they were originally transmitted. After each sampling, the repeaters reconstruct the signals to their original shape and retransmit them, thus improving data transmission.

4 Before sending the signal on to the cable (destination), each I/O card

restores the following characteristics to the signal:

■ Amplitude

■ Phase

■ Frequency

1-8 CHAPTER 1: INTRODUCTION

Maximum Number

of I/O Cards Per

I/O Card Descriptions

Module

Table 1-1

■ I/O cards supported by the EtherFlex Module

■ Maximum number of bays occupied by each I/O card

■ Number of ports supported on each I/O card

■ Maximum number of ports supported by the EtherFlex Module

lists the:

Table 1-1 Maximum I/O Cards Supported by the EtherFlex Module

I/O Card Type

Number of I/O Cards per EtherFlex Module

Number of Ports per I/O Card

Maximum Ports per EtherFlex Module

RJ-45 10BASE-T 4 4 16 BNC 10BASE-2 4 3 12 Male AUI 2 3 6 Female AUI 2 3 6

10BASE-FB/FL 4 2 8

Refer to the section in this chapter, “Understanding Female AUI I/O Card

Limitations,” for the maximum number of Female AUI ports in a 17-slot hub.

This section describes the following I/O cards supported by the CoreBuilder 5000 EtherFlex Module:

■ BNC 10BASE-2 I/O Card Features

■ RJ-45 10BASE-T I/O Card Features

■ Male AUI I/O Card Features

■ Understanding Female AUI I/O Card Limitations

■ 10BASE-FB/FL I/O Card Features

The CoreBuilder 5000 EtherFlex Module contains 4 bays (subslots) for I/O cards. The module can hold up to 4 single-height or 2 double-height I/O cards at one time. Each I/O card has its own faceplate and port status LEDs.

I/O Card Descriptions 1-9

BNC 10BASE-2 I/O

Card Description

The CoreBuilder 5000 BNC 10BASE-2 I/O Card (Model Number 6103D-BNC) is a single-height, 3-port repeater card with built-in media attachment units (MAUs). Each port attaches directly to a thin-wire (10BASE2) segment. Compatible with IEEE 802.3 specifications, this card provides full repeater functionality, allowing you to connect up to 3 thin-wire Ethernet segments to the network.

BNC 10BASE-2 I/O Card Features

The CoreBuilder 5000 BNC 10BASE-2 I/O Card provides the following features:

■ On-board Termination – Termination is set internal or external to

the BNC 10BASE-2 I/O Card, on a per-port basis.

■ Grounding Option – BNC connector shield grounding can either

be present or absent depending on whether the BNC jumper is installed.

Figure 1-3

shows the BNC 10BASE-2 I/O Card faceplate and LEDs.

LEDs

10BASE2

Figure 1-3 BNC 10BASE-2 I/O Card Faceplate and LEDs

1-10 CHAPTER 1: INTRODUCTION

RJ-45 10BASE-T I/O

Card Description

The CoreBuilder 5000 RJ-45 10BASE-T I/O Card (Model Number 6104D-TPP)

is a single-height, 4-port repeater card

which supports networks utilizing RJ-45 connectors in 10BASE-T installations.

The RJ-45 10BASE-T I/O Card connects up to 4 devices (PCs, terminals, printers, modems) to the 3Com CoreBuilder 5000 Integrated System Hub. The I/O card provides 4 twisted pair Ethernet ports which may be switched individually to any of the CoreBuilder 5000 backplane networks or extended (isolated) segments.

RJ-45 10BASE-T I/O Card Features

The CoreBuilder 5000 RJ-45 10BASE-T I/O Card provides the following features:

■ Remote Diagnostic Mode – Checks driver and receiver integrity.

■ Port Redundancy – Prevents network failure by allowing you to

define a primary and secondary port in case one link fails.

■ Squelch Mode – Supports normal and low squelch settings based

on the 10BASE-T standard.

■ Auto Polarity Switching – Enables an RJ-45 10BASE-T I/O Card in

an EtherFlex Module to automatically switch the polarity of twisted pair cabling. If, for instance, you erroneously reverse the polarity of some twisted pair cabling while assembling it, Auto Polarity allows you to automatically detect this problem and reverse the polarity.

■ Link Integrity – Allows you to enable or disable Link Integrity for

all ports on an RJ-45 10BASE-T I/O Card in an EtherFlex Module in networks that comply with the 10BASE-T standard.

I/O Card Descriptions 1-11

Figure 1-4 shows the RJ-45 10BASE-T I/O Card and LEDs.

LEDs

10BASET

Male AUI I/O Card

Description

Figure 1-4 RJ-45 10BASE-T I/O Card Faceplate and LEDs

The CoreBuilder 5000 Male AUI I/O Card (Model Number 6103D-AUIM) is a double-height transceiver, 3-port repeater card. Compatible with IEEE 802.3 specifications, this I/O card is designed for attaching computers, bridges, routers, and repeaters directly to your CoreBuilder 5000 system through an AUI cable.

Male AUI I/O Card Features

The Male AUI I/O Card provides the following features:

■ Port Redundancy – Prevents network failure by allowing you to

define a primary and secondary port in case one link fails.

■ SQE Test – Provides an SQE (Software Quality Engineering) test for

repeater compatibility.

1-12 CHAPTER 1: INTRODUCTION

Figure 1-5 shows the Male AUI I/O Card faceplate and LEDs.

LEDs

AUI-M

Figure 1-5 Male AUI I/O Card Faceplate and LEDs

I/O Card Descriptions 1-13

Female AUI I/O Card

Description

The CoreBuilder 5000 Female AUI I/O Card (Model Number 6103D-AUIF) is a double-height, 3-port repeater card that attaches Ethernet segments directly to your CoreBuilder 5000 system using an AUI cable and external transceivers. Compatible with IEEE 802.3 specifications, the Female AUI I/O Card provides a way to connect any Ethernet segment running on 10BASE-5 transceiver cable to your network.

Figure 1-6

shows the Female AUI I/O Card and LEDs.

LEDs

AUI-F

Figure 1-6 Female AUI I/O Card Faceplate and LEDs

Understanding Female AUI I/O Card Limitations

The CoreBuilder 5000 Female AUI I/O Card uses significantly more +12 Volt power than other I/O cards. As a result, there is a limitation on the number of Female AUI ports that can exist in a CoreBuilder 5000 17-slot hub. The limitation to the number of ports configured on a Female AUI I/O Card depends on the number of power supplies used in that hub.

1-14 CHAPTER 1: INTRODUCTION

Follow the guidelines outlined in Table 1-2 when installing a Female AUI I/O Card in an EtherFlex Module.

Table 1-2 Female AUI I/O Card Limitations

Maximum Number

Number of Power Supplies Available

4 (with no redundant power supply) 23 4 (with 1 redundant power supply) 15

of Female AUI Ports

The maximum number of Female AUI I/O cards is 23 for CoreBuilder 5000 or ONline hubs in any combination.

If you are unsure how well your configuration of the Female AUI I/O Card accommodates these guidelines, contact your supplier or 3Com Technical Support.

10BASE-FB/FL I/O

Card Description

The CoreBuilder 5000 10BASE-FB/FL I/O Card (Model Number 6102D-FIB) is a single-height, 2-port repeater, autosensing I/O card that complies with the IEEE 802.3 standard. The I/O card’s autosensing capability allows you to connect fiber to the desktop (10BASE-FL) or fault-tolerant backbones (10BASE-FB). The module determines if one end of the fiber link is 10BASE-FB or 10BASE-FL.

You can mix FB and FL networks on the same 10BASE-FB/FL I/O card.

10BASE-FB/FL I/O Card Features

The 10BASE-FB/FL I/O Card provides the following features:

■ Remote Diagnostic Mode – Checks driver and receiver integrity.

■ Port Redundancy – Prevents network failure by allowing you to

define a primary and secondary port in case one link fails.

■ Autosensing – Automatically configures the 10BASE-FB/FL ports on

the EtherFlex Module to the same protocol the network is running.

Sample Etherflex Module Application 1-15

Figure 1-7 shows the 10BASE-FB/FL I/O Card faceplate and LEDs.

Sample Etherflex Module Application

FB/FL

LEDs

Figure 1-7 10BASE-FB/FL I/O Card Faceplate and LEDs

This section shows a sample application for the EtherFlex Module.

Figure 1-8

shows an EtherFlex Module application with the following

I/O cards installed:

■ RJ-45 10BASE-T – Utilizing 2 of 4 ports

■ BNC 10BASE-2 – Utilizing 3 ports

The sample application shows the following:

■ Two PCs connected directly to an RJ-45 10BASE-T I/O Card using a

twisted pair RJ-45 cable.

■ Three 10BASE-2 segments connected to a BNC 10BASE-2 I/O Card.

Each segment is grounded and terminated with 50 ohm termination on both ends.

In Figure 1-8

■ The first and third segments (Ports 1 and 3) are externally

terminated. You do not set the BNC jumpers.

■ The second segment (Port 2) terminates at the port. When the

BNC port serves as the segment end point, install termination through jumper settings on the BNC 10BASE-2 I/O Card.

1-16 CHAPTER 1: INTRODUCTION

EtherFlex Module

RJ-45 10BASE-T

I/O Card

Port 1

Figure 1-8 shows a sample EtherFlex application.

RJ-45 cable

Where to Go From Here

Port 3

External termination

Port 2

External termination

CoreBuilder 50 00 hub

PCPC

BNC 10BASE-2 I/O Card

10BASE2

Printer

10BASE2

Printer

10BASE2

Printer

External termination

Figure 1-8 EtherFlex Application With RJ-45 10BASE-T and BNC 10BASE-2 I/O Cards

Once you are familiar with the CoreBuilder 5000 EtherFlex Module, evaluate the environment in which you plan to use the module and go to Chapter 2, Designing and Expanding the Network

. Chapter 2 describes cabling considerations and configuration examples specific to the EtherFlex Module in the CoreBuilder 5000 Integrated System Hub.

DESIGNING AND EXPANDING THE

NETWORK

This chapter describes how to configure networks that use the CoreBuilder EtherFlex Module, and I/O cards.

This chapter contains the following sections:

■ Understanding General Network Configuration Rules

■ Configuring Fiber Backbone, Twisted Pair to-the-Desk

■ Configuring Twisted Pair Backbone, Twisted Pair to-the-Desk

■ Connecting an Ethernet Segment Using a Male AUI I/O Card

■ Using Patch Panels

■ Setting Redundant Links

■ Where to Go From Here

CAUTION: To ensure proper operation, install all equipment using only approved cables. Refer to Appendix A on connector and cable requirements.

™

5000 Integrated System Hub, the CoreBuilder 5000

, Specifications, for information

Understanding General Network Configuration Rules

This section describes general rules for configuring an Ethernet network using fiber as the backbone medium and twisted pair as the horizontal medium (connection to printers, PC). It also provides rules to ensure that your network configuration conforms to distance limitations imposed by Ethernet and networking equipment.

The following topics are discussed:

■ Before Configuring Your Network

■ Basic Network Rules

■ LAN Product Distances

2-2 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

Before Configuring

Before configuring the network, consider your:

Your Network

■ Network size from end to end:

■ 100 meters

■ 1000 meters

■ 4000 meters

■ Greater than 4000 meters

■ Plans for expansion. Once the network expands beyond a certain

size, you may need to add a switch or other internetworking device.

Basic Network Rules Table 2-1

■ Seven basic network rules to keep in mind when you construct

your network

■ 3Com Corporation’s recommendations for these rules

For hardware-specific information on the EtherFlex Module, refer to

Appendix A

Table 2-1 Seven Basic Network Rules

Rule Definition Recommendations/Notes 1 If possible, use 10BASE-FB

as the backbone medium.

2 Wire the backbone in a

3 Use the maximum Fiber

star topology for proper fault isolation.

Ethernet network diameter, which is 4200 meters of fiber cable.

lists:

, Specifications.

Use 62.5 micron cable to conform with IEEE 10BASE-F and ANSI FDDI standards.

Use ST-type connectors. Make sure to lay extra fiber cables. The extra cost is small

and you need them as your network grows. The star topology conforms to Ethernet and FDDI wiring.

Ensure that you run at least 2 fiber strands to each backbone connection.

4200 meters is the maximum distance between any 2 transceivers on the network.

4200 meters does not include the transceiver cable (that is, drop or patch cable) that connects a device with an external transceiver. Transceiver cables can extend up to 50 meters. Thus, total network diameter can be as much as 4300 (4200 m + 2 * 50 m) between any 2 nodes.

Understanding General Network Configuration Rules 2-3

Table 2-1 Seven Basic Network Rules (continued)

Rule Definition Recommendations/Notes 4 Be aware that certain

LAN devices on the network shrink the maximum Fiber Ethernet network diameter to less than 4200 meters.

5 Assume that 1 meter of

coaxial or twisted pair cable is equal to 1 meter of fiber cable.

6 Ensure the fiber link

distances do not exceed the limits imposed by the optical power budget.

7 When in doubt about your

network distance, use a switch or bridge.

Many LAN products delay the signal that travels through them. This is known as equivalent distance. Each microsecond delay:

Reduces the maximum link distance Shrinks the network diameter by approximately

200 meters of fiber cable

Table 2-2

A conservative rule. For example, the actual equivalence is about 1.1 meters of coaxial cable for each meter of fiber cable. For simplicity, assume 1 meter.

For 62.5 micron cable, you can use up to 4000 meters point-to-point using CoreBuilder 5000 or ONline Fiber Modules. If you have poor quality cable or cross several patch panels, you may have to sacrifice some distance in cable length.

Some older, Ethernet fiber optic products are less powerful than CoreBuilder 5000 Fiber Module optics. If connecting to an Ethernet fiber optic product, remember that the least powerful device determines the maximum point-to-point distance.

If you are not certain if you have exceeded allowable network distances, use a bridge to extend the network.

lists equivalent distances for 3Com products.

2-4 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

LAN Product

Distances

When you configure your network, each installed product reduces the network diameter distance. Table 2-2

lists the LAN product equivalent

distances required for each LAN product installed.

Table 2-2 LAN Product Equivalent Distances

Equivalent Distance

LAN Product

CoreBuilder 5000 and ONline Ethernet 10BASE-T Modules 585

Incoming signal to TP port 420 Outgoing signal from TP port 165

CoreBuilder 5000 and ONline Ethernet 10BASE-FB Modules

Incoming signal to fiber port 140 Outgoing signal from fiber port 50

CoreBuilder 5000 and ONline Ethernet 10BASE-FL Module 560

Incoming signal to fiber port 330 Outgoing signal from fiber port 230

CoreBuilder 5000 and ONline Ethernet Transceiver Module

10BASE-FB Star Coupler (8 or 14 port) 180 CoreBuilder 5000 and ONline Ethernet BNC Module 900

Incoming signal to BNC port 450 Outgoing signal from BNC port 450

CoreBuilder 5000 and ONline Ethernet Repeater Module 800

Incoming signal to AUI port 600 Outgoing signal from AUI port 200

IEEE Repeater 800

(meters)

190

Configuring Fiber Backbone, Twisted Pair to-the-Desk 2-5

Configuring Fiber Backbone, Twisted Pair to-the-Desk

Fiber Backbone

Configuration Rules

This section describes:

■ Fiber Backbone Configuration Rules

■ Fiber Backbone, Twisted Pair to-the-Desk Configuration Example

■ Verifying Fiber Backbone Configuration

When you configure a network with unshielded twisted pair (UTP) cabling to the desk and fiber for the backbone, the following rules apply:

■ Add a bridge if you will exceed 4 full repeater hops.

■ If traffic travels into a port on any repeater-based module and

out the backplane, then the module counts as a ½-repeater hop.

■ If traffic travels into the module through one port and out

another port on the same or a different module, then the module counts as 1 full repeater hop.

■ The equivalent fiber distance for the EtherFlex 10BASE-FB I/O Card

or Ethernet 10BASE-FB Modules (see Table 2-2

■ 140 meters for signals that enter a 10BASE-FB port at the front

) is:

panel

■ 50 meters for signals that internally enter a 10BASE-FB Module

through the CoreBuilder 5000 hub backplane

■ The equivalent fiber distance for the EtherFlex 10BASE-T I/O Card or

Ethernet 10BASE-T Modules (see Ta b l e 2 - 2

■ 420 meters for signals that enter the EtherFlex 10BASE-T port at

) is:

the front panel

■ 165 meters for signals that internally enter a 10BASE-T port

through the CoreBuilder 5000 hub backplane

For each pair of EtherFlex 10BASE-T I/O Cards that a signal travels through, deduct a fiber equivalent distance of 585 meters (420 m + 165 m = 585 m) from the overall allowable network diameter. You must also deduct the fiber equivalent distance if a signal enters the EtherFlex 10BASE-T I/O Card through one port and exits another port of the same EtherFlex 10BASE-T I/O Card. The fiber equivalent distance counts as 585 meters of fiber equivalent distance and as a full repeater hop.

2-6 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

Fiber Backbone,

Twisted Pair to-the-Desk

Configuration

Example

Fiber backbone

1000 m

The sample configuration shown in Figure 2-1 uses EtherFlex 10BASE-FB I/O Cards to connect hubs and EtherFlex 10BASE-T I/O Cards to connect to transceivers. Refer to the next page for a detailed explanation of configuration distances.

2 4

10 9

500 m

Fiber backbone

2 4

Hub A

Hub B

Hub C

Unshielded twisted pair

100 m

Unshielded twisted pair

75 m

Unshielded twisted pair

Configuration Distance

1. Maximum Diameter:

2. Equivalent Distances: Hub A:

Hub B: Hub C:

Total:

3. Amount of cable between

transceivers:

Total:

4. Remaining Distance:

470 m 305 m 190 m

965 m

1000 m 100 m 500 m 75 m

4200 m

1675 m

1560 m

Figure 2-1 Sample Configuration Distance Calculation

Configuring Twisted Pair Backbone, Twisted Pair to-the-Desk 2-7

Verifying Fiber

Backbone

Configuration

To determine if your network configuration is legal:

1 Begin with 4200 meters (m). 2 Identify the two transceivers that are the greatest fiber equivalent

distance apart. In Figure 2-1

, 10BASE-T Transceivers A and B are the

farthest apart.

3 Determine the sum of each hub’s equivalent distance using the

distances listed in Table 2-2

. For example, Hub A has an equivalent distance of 470 m. This total represents the sum of the incoming signal to the UTP port (420 m) and the outgoing signal from the fiber port (50 m). Refer to Figure 2-1

for details.

4 Subtract the total equivalent distance of each hub located between

transceivers A and B (965 m) from the maximum network diameter (4200 m). In this case, the subtotal is 3235 m.

5 Determine the total amount of cable between transceivers A and B

(1675 m) and subtract this number from the subtotal determined in step 4 (3235 m).

The remaining distance equals 1560 m.

For the configuration shown in Figure 2-1

to function properly, the fiber equivalent distance between Transceiver A and Transceiver B must be less than 4200 meters. As a result of the calculation above,1560 meters remain for expansion.

Configuring Twisted Pair Backbone, Twisted Pair to-the-Desk

This section describes:

■ TTwisted Pair Backbone Configuration Rules

■ Twisted Pair Backbone, Twisted Pair to-the-Desk Configuration

Example

■ Verifying a Twisted Pair Backbone Configuration

2-8 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

Twisted Pair

Backbone

Configuration Rules

Twisted Pair

Backbone, Twisted

Pair to-the-Desk

Configuration

Example

When you configure a network with twisted pair cabling to the desk and twisted pair for the backbone, the following rules apply:

■ Add a bridge if you have more than 8 EtherFlex modules serially

connected. Each bridge creates a subnetwork. Each subnetwork can have its own 4200 meter network diameter.

■ If traffic travels into a port on any repeater-based module and

out the backplane, then the module counts as a ½-repeater hop.

■ If traffic travels into the module through one port and out

another port on the same or a different module, then the module counts as 1 full repeater hop.

Because of the Ethernet 4-repeater rule, do not put more than 8 CoreBuilder 5000 Ethernet Modules in the path between any 2 transceivers. An exception to this is the CoreBuilder 5000 10-Port FB Module and EtherFlex Modules with 10BASE-FB/FL I/O cards configured as FB. These configurations allow more than 8 modules in the path between 2 transceivers.

Figure 2-2 illustrates an example of a twisted pair network.

100 m

Figure 2-2 Example of a Twisted Pair Network

50 m

Configuring Twisted Pair Backbone, Twisted Pair to-the-Desk 2-9

Verifying a Twisted Pair

Backbone

Configuration

Although fiber cable is not used in the configuration illustrated in

Figure 2-2

, you can calculate the fiber equivalent distance as follows:

1 Total amount of cable between workstations:

100 m + 100 m + 100 m + 100 m + 50 m = 450 m.

2 Total equivalent distance of the EtherFlex 10BASE-T Modules:

Each hub has an equivalent distance of (420 m + 165 m) or 585 m Four hubs with a total equivalent distance of (585 m * 4) or 2340 m exist.

3 Total equivalent distance: 450 m + 2340 m = 2790 m.

Incoming signal to the UTP port on each hub = 420 m. Outgoing signal from the UTP port on each hub = 165 m. Refer to Table 2-2 more information on LAN product equivalent distances.

Although the twisted pair network example in Figure 2-2

uses only CoreBuilder 5000 EtherFlex 10BASE-T Modules, it is also possible to use other 10BASE-T modules.

Because the total equivalent distance (2790 meters) is less than 4200 meters, Figure 2-2

illustrates a legitimate configuration.

for

2-10 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

Connecting an Ethernet Segment Using a Male AUI I/O Card

This section shows a configuration in which the Male AUI I/O Card in an EtherFlex Module is connected to network PCs.

Figure 2-3

shows a network setup of an Ethernet segment connecting

to a hub containing an EtherFlex Module with a Male AUI I/O Card.

CoreBuilder 5000 hub

2 4

Fiber backbone

2 4

50 m

AUI cable

CoreBuilder 5000 hub

3 m

AUI cable

Figure 2-3 Ethernet Segment Connected to EtherFlex Module

When you connect an AUI port to a device, the minimum AUI cable distance is 3 meters and the maximum is 50 meters.

Using Patch Panels 2-11

Using Patch Panels Patch panels make cable management simple when used in a

rack-mounted hub. However, patch panels weaken signals that pass through them, thereby reducing achievable link distances.

3Com assumes the use of 1 patch panel in the 100 meter link distance calculations specified in the examples in this guide. Each additional patch panel in the link reduces the 100 meter link distance by approximately 10 meters.

In the example shown in Figure 2-2

, if you used 2 patch panels between the upper right PC and the upper right hub, you would have to shorten the link distance of 100 meters to 90 meters. This is because the maximum allowable link distance on 24-gauge wire (using 10BASE-T signaling with 2 intervening patch panels) is 100 meters minus approximately 10 meters.

A patch panel installed between the lower right PC and the lower left hub in Figure 2-2

does not affect the link because it is only 50 meters

away. Patch panels only affect lengths greater than 90 meters.

2-12 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

Setting Redundant Links

EtherFle x Module

When you set up a redundant twisted pair link between ports on CoreBuilder 5000 hubs, you prevent any possible network failure.

Figure 2-4

shows two examples of a redundant configuration using

RJ-45 10BASE-T and Male AUI I/O Cards in an EtherFlex Module.

CoreBuilder 5000 hub

T wisted pair

cable

Twisted pair

cable

CoreBuilder 5 000 hub

EtherFle x Modules

AUI cable

Setting redu nd ant links between 2 ports on 1 I/O card on an EtherFlex Module

Figure 2-4 Redundant Configurations

You can also enable redundancy between ONline modules in a CoreBuilder 5000 Integrated System Hub.

Setting redundant links between 2 ports on different I/O cards on 2 EtherFlex Modules

Setting Redundant Links 2-13

Setting Redundancy

Between Two Ports

on One EtherFlex

Module

Setting Redundancy

Between Two

EtherFlex Modules

To set link redundancy between 2 ports on 1 RJ-45 10BASE-T I/O Card in an EtherFlex Module:

1 Connect 2 links to 2 ports on the module. 2 Use the SET PORT MODE REDUNDANT command to specify the primary

link port and the backup link port. For example, if you set up a redundant link using the following

command:

SET POR T 8.1 MODE REDUNDANT 8.3

Port 1 in slot 8 becomes the primary link and port 3 in slot 8 becomes the backup link.

To set link redundancy between 2 ports on different I/O cards in 2 EtherFlex Modules:

1 Connect 2 links to 2 ports between the modules. 2 Use the SET PORT MODE REDUNDANT command to specify the primary

link port and the backup link port. For example, if you set up a redundant link using the following

command:

SET PORT 12.3 MODE REDUNDANT 8.2

Port 3 in slot 12 becomes the primary link and port 2 in slot 8 becomes the backup link.

Only RJ-45 10BASE-T twisted pair, Male AUI, and 10BASE-FB/FL I/O Cards support this feature.

CAUTION: Redundancy on the EtherFlex Module is a management module software function. Consequently, a network loop could occur if the module is set to redundant mode and it is powered down and then up without a 3Com management module in the hub.

2-14 CHAPTER 2: DESIGNING AND EXPANDING THE NETWORK

Once redundancy is configured, a switchover to the backup link occurs under two conditions:

■ Link failure

■ Port partition

Once the switchover occurs and the backup link becomes operational, the system automatically performs a switchover back to the primary link once the problem is resolved.

Although you can configure redundancy between 2 ports on 1 module, you should configure redundancy between 2 ports on 2 different modules. This provides additional protection if, for example, one of the modules fails.

Refer to the CoreBuilder 5000 Distributed Management Module User Guide for more information on setting redundancy between module

ports.

Where to Go From Here

Once you complete this chapter, go to Chapter 3. Chapter 3, Installing the Module and I/O Cards, describes installation procedures, explains how to set the DIP switches, and explains how to monitor the front panel using LEDs.

INSTALLING THE MODULE AND

I/O CARDS

This chapter describes how to install the CoreBuilder™ 5000 EtherFlex Module and I/O cards. A module reference card for the EtherFlex Module (Document Number 17-00620) lists the DIP switch settings, EtherFlex Module management commands, LED indicators, and other module information. Store the card in the CoreBuilder 5000 reference binder in the Reference Card area.

This chapter contains the following topics:

■ Precautionary Procedures

■ General Installation Rules

■ Quick Installation

■ Unpacking Procedures

■ Setting the DIP Switches

■ BNC 10BASE-2 I/O Card Jumpers

■ Connecting Module Daughter Cards

■ Installing I/O Cards

■ Installing the Module

■ Monitoring the Front Panel

■ Verifying LED and Network Operation

■ Where to Go From Here

CAUTION: Read the precautionary procedures before unpacking the module.

3-2 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Precautionary Procedures

Electrostatic discharge (ESD) can damage static-sensitive devices on circuit boards. Follow these precautions when you handle the EtherFlex Module and any I/O card that is installed on the module.

CAUTION: Do not remove the board from its antistatic shielding bag until you are ready to inspect or install it.

CAUTION: Handle the board by the faceplate only.

Use one of the following proper grounding techniques when you install the EtherFlex Module and I/O cards:

■ Use a foot strap and grounded mat or wear a grounded static

discharge wrist strap.

■ Touch the grounded rack or other source of ground just before you

handle the module and I/O cards.

General Installation Rules 3-3

General Installation Rules

This section describes general rules to follow when installing and replacing I/O cards on an EtherFlex module, as follows:

■ If you want to remove an I/O card from an EtherFlex carrier module,

you must:

■ Disable all ports on that module.

■ Reconfigure the module after you re-install it.

This is because each physical port on the module is associated with a logical port in a top-to-bottom sequence.

For example, if 3 EtherFlex I/O cards are installed in a hub and each card contains 3 ports (BNC I/O Card), ports 1 to 3 are associated with the top-most I/O card, ports 4 to 6 with the center I/O card, and ports 7 to 9 with the bottom I/O card. If you remove the middle card, the bottom card takes on ports 4 to 6 attributes and ports 7 to 9 no longer exist.

■ Install daughtercards on the EtherFlex module before you install

I/O cards.

■ If you insert different types of I/O cards after configuring the

module, you must reconfigure the module if the number of ports or media type changes.

■ If you replace an I/O card and the existing I/O card port number and

media type remain constant, then the module configuration does not change.

■ I/O card ports are numbered sequentially from top to bottom on an

EtherFlex module. When you replace or install I/O cards, existing I/O cards installed in the bays below the newly-installed I/O card must be reconfigured.

■ When using the SHOW MODULE command, follow these guidelines

when numbering the subslot parameters:

■ EtherFlex module occupies subslot 1.

■ Daughtercards occupy subslots 2 and 3.

■ I/O cards in the EtherFlex module occupy subslots 4, 5, 6, and 7

(depending on the type of I/O card installed). Male AUI and Female AUI I/O cards occupy subslots 4 and 6.

EtherFlex modules can occupy any slot in the hub.

3-4 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Quick Installation Table 3-1 outlines the steps for the installation of your module and

I/O cards. If you are familiar with installing CoreBuilder 5000 modules, use this table as a checklist. Otherwise, consult the remainder of this chapter.

Table 3-1 Quick Installation Checklist

Step Procedure Chapter/Section 1 Verify that your network complies with the

basic rules for network design.

2 Unpack the module and I/O cards. Chapter 3, Unpacking

3 Configure the DIP switch settings. If you

have a network management module installed in the hub, configure the module using the management commands described later in this chapter.

4 Insert I/O cards onto the EtherFlex Module.

5 Attach the Network Monitor Card or

6 Establish connections from the EtherFlex

7 Enter the SHOW POWER1 command at the

8 Verify LED status for normal operation. Chapter 3, Verifying LED

Refer to the CoreBuilder 5000 Integrated System Hub Installation and Operation Guide for

Tighten the faceplate screws of each I/O card.

Private Line Card to the EtherFlex Module.

Module to devices using the appropriate connectors and cabling.

command line of the terminal. This command displays current power requirements for the hub.

details on hub power requirements.

Chapter 2, Designing and

Expanding the Network

Procedures

Chapter 3, Setting the DIP

Switches or Chapter 4, Configuring the EtherFlex Module and I/O Cards

Chapter 3, Installing I/O

Cards

Chapter 3, Connecting

Module Daughter Cards

Chapter 3, Installing the

Module

Chapter 3, Installing the

Module

and Network Operation

For information about potential problems, consult the troubleshooting techniques in Chapter 5

Unpacking Procedures 3-5

Unpacking Procedures

To unpack the EtherFlex Module and I/O cards:

1 Verify that the EtherFlex Module (Model Number 6104M-MOD) is the

model you ordered by checking the model number listed on the side of the shipping carton.

Note that the product model number printed on the shipping box differs from the model number on the product. The model number on the shipping box contains the prefix ’3C9’.

2 Verify that the I/O cards are the models that you ordered by checking

the Model Number listed on the side of the shipping carton.

3 Remove the EtherFlex Module and I/O cards from the shipping carton. 4 Remove the module and I/O cards from the antistatic shielding bag and

inspect them for damage. Always handle the EtherFlex Module and the I/O cards by the faceplate,

being careful not to touch the components. If the module or I/O cards appear to be damaged, return them to the antistatic shielding bag, repack them in the shipping carton, and contact your local supplier.

Keep the shipping carton and antistatic shielding bag in which your module and I/O cards were shipped for future storage or shipment.

Record the serial number of your EtherFlex Module and any I/O cards you received. The Hub Planning Chart (located in the CoreBuilder 5000 reference binder) and the Module Planning Chart (supplied with your module) are provided for this purpose.

Before You Begin Before installing the EtherFlex Module and I/O cards, be sure that the

module is equipped with:

■ 4 blank panels on the front of the module

■ 2 removable brackets

■ 2 screws per panel

■ 4 standoffs and screws

Standoffs with the screws are attached to the module. There is 1 standoff per bay (Figure 3-7

3-6 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Place all unused blank faceplates, screws, and brackets in a safe place. You will need them for future use.

Setting the DIP Switches

If you are using a management module and do not plan to use the DIP configuration command, skip the section Setting the DIP Switches in this chapter and go to one the following sections:

■ Section BNC 10BASE-2 I/O Card Jumpers if you are going to set

jumpers on the BNC 10BASE-2 I/O Card

■ Section Connecting Module Daughter Cards if you are going to

install an Ethernet Network Monitor Card or a Private Line Card

The CoreBuilder 5000 EtherFlex Module has an 8-position DIP switch. All of the DIP switch settings on the EtherFlex Module are ignored if an appropriate CoreBuilder 5000 network management module (for example, DMM 2.2 or later) is already installed in the hub. Use network management commands, rather than the DIP switches, to configure the module.

This section contains the following information:

■ DIP Switch Features

■ Setting the DIP Switches

■ DIP Switch Definition

DIP Switch Features Use the DIP switch to:

later

■ Configure the module to a CoreBuilder 5000 backplane network

■ Choose the primary module configuration:

■ Non-volatile RAM configuration (software configuration)

■ DIP Segment selection (DIP-specified module configuration)

You cannot assign ports to different networks simultaneously using the DIP switches on the EtherFlex Module. You must use network management commands.

Setting the DIP Switches 3-7

Setting the DIP

Switches

To set the module to access the DIP switch settings when using a management module, issue the SET DEVICE DIP_ CONFIGUR ATIO N ENABLE command from the management module.

If a CoreBuilder 5000 network management module is not installed in your hub, your hub configuration defaults to the DIP switch settings on the module.

Figure 3-1

shows the DIP switch location on an EtherFlex Module.

DIP switch location

Backplane DIN

connector

DIP switches

Figure 3-1 EtherFlex Module DIP Switch Location

3-8 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

DIP Switch Definition Table 3-2 briefly describes the DIP switch settings. Each DIP switch

function is defined in Chapter 4, Configuring the EtherFlex Module and

I/O Cards:

■ Switches 1 through 4 allow you to configure all ports to one of the

backplane segments (Ethernet 1 to Ethernet 8) or as a workgroup (Isolated_1).

■ Switch 5 allows you to switch between non-volatile RAM (NVRAM)

or DIP-switch controlled configuration.

■ Switches 6, 7, and 8 are not used.

■ Zero (0) is the Off position and 1 is the On position.

Table 3-2 Network Selection DIP Switch Settings

Network Selection

DIP Switch Settings

Switch 4 Switch 3 Switch 2 Switch 1

1 (default) 0 0 0 0 2 0 0 0 1 3 0 0 1 0 4 0 0 1 1 5 0 1 0 0 6 0 1 0 1 7 0 1 1 0 8 0 1 1 1 Isolated_1 1

By default, Switch 5 is set to NVRAM. When enabled, settings stored in NVRAM take

precedence over DIP switch settings 1 through 4.

The DIP switch legend on the module refers to the backplane connection as the channel selection (CHSEL). The channel setting and the network setting are the same. Ports set to the same network communicate with each other. If the switch labeled ISOLATE is On, it sets the module to Isolated_1.

BNC 10BASE-2 I/O Card Jumpers 3-9

When the EtherFlex Module is first installed, the hub checks for configuration settings in the CoreBuilder 5000 Distributed Management Module (DMM). If the hub is managed, the module uses the settings from the DMM to check:

1 For configuration settings stored in NVRAM. 2 If there are no configuration settings in NVRAM or DIP switch 5 is set

to DIP-switch controlled configuration, the EtherFlex Module checks the DIP switches for configuration information.

BNC 10BASE-2 I/O Card Jumpers

The BNC 10BASE-2 I/O Card is equipped with 6 jumper locations for selecting termination and shield grounding.

The section describes:

■ BNC 10BASE-2 I/O Card Jumper Settings

■ BNC 10BASE-2 I/O Card Termination

■ BNC 10BASE-2 I/O Card Shield Grounding

■ Storing the BNC 10BASE-2 I/O Card Jumper

3-10 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

BNC 10BASE-2 I/O

Card Jumper Settings

There are 2 jumpers per port on the BNC 10BASE-2 I/O Card. Each port can:

■ Be individually terminated

■ Have the cable shield grounded at one end of the connection

Figure 3-2

shows the component side view of the BNC 10BASE-2 I/O

Card with the location of the jumpers.

Component Side View

JP1

JP2

JP3

JP4

TERM

Port 1

SHIELD

TERM

Port 2

SHIELD

JP5

JP6

TERM

SHIELD

Jumpers (JP) BNC connectors

Port 3

Figure 3-2 BNC 10BASE-2 I/O Card Jumper Settings

Termination and chassis ground settings cannot be overridden by the DMM.

BNC 10BASE-2 I/O Card Jumpers 3-11

BNC 10BASE-2 I/O

Card Termination

Because of the characteristics of the BNC cable, you must set termination for the BNC 10BASE-2 I/O Card. Termination on the BNC 10BASE-2 I/O Card can be set to one of the following:

■ External Termination

■ Internal Termination

External Termination

If you use separate external terminators, you do not install BNC jumpers. However, to prevent interference, set termination at the external device and store the BNC jumpers in the inactive position.

Internal Termination

If the BNC port on the EtherFlex Module serves as an end point to a segment (no external termination), set termination through installed jumpers on the BNC 10BASE-2 I/O Card (for an example, see Figure 3-3

). Termination jumpers are shipped installed (internal

termination).

Setting BNC 10BASE-2 I/O Card Termination

Your network configuration may require that you reconfigure one or more of the BNC jumper settings. For example:

■ If you are connecting the BNC 10BASE-2 I/O Card to a transient

point on an Ethernet segment which already has proper termination at both ends, termination on the BNC 10BASE-2 I/O Card must be removed.

■ If the point to which you are connecting the BNC 10BASE-2 I/O

Card is an end point of the segment, you must terminate the segment through an installed jumper on the BNC 10BASE-2 I/O Card.

3-12 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Figure 3-3 shows termination options on a BNC 10BASE-2 I/O Card.

BNC 10BASE-2 I/O

Card Shield

Grounding

10BASE2

External termination

Port 2

Port 3

Internal termination

PC PC

Printer

External termination

Figure 3-3 BNC 10BASE-2 I/O Card Termination Options

The application in Figure 3-3 shows:

■ Termination for Port 2 is external. The jumper is removed or in an

inactive position.

■ Termination for Port 3 is internal. The jumper is installed.

Shield grounding for the BNC 10BASE-2 I/O Card is set manually by grounding the cable shield to the port ground at one end of a connection between 2 hubs.

The shield grounding jumpers are shipped installed, but off-center. That is, the shield-to-ground connection is not made. When you connect 2 hubs, you must only ground one end of the cable connection. If the segment is already properly grounded to a point on the network, store the chassis ground jumper cap in an inactive position (refer to the next section, Storing the BNC 10BASE-2 I/O Card

Jumper).

For proper tracking, install ground shield jumpers on all segments in one location.

BNC 10BASE-2 I/O Card Jumpers 3-13

Storing the BNC

10BASE-2 I/O Card

Jumper

When a jumper cap is not being used (not installed), you should store it in an easily accessible location, in case the configuration for a port changes such that internal termination or grounding is required. One option is to store the cap on the module.

Figure 3-4

shows the position of the jumper cap in an active position

and in inactive positions.

Jumper caps

Jumpers

Active position

Figure 3-4 Storing Jumper Caps

Inactive positions

CAUTION: You must store the jumper cap on the BNC 10BASE-2 I/O Card as described above. If you store the cap over a set of pins other than those shown in Figure 3-4

, problems with data integrity on your

network will occur.

3-14 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Connecting Module Daughter Cards

This section describes the location for connecting an Ethernet Network Monitor Card or a Private Line Card to the EtherFlex Module. The EtherFlex Module supports up to 2 daughter cards. This capability gives you greater flexibility in both creating workgroups and configuring modules.

You need to attach a CoreBuilder 5000 Ethernet Network Monitor Card (ENMC) to monitor Ethernet and RMON statistics on your EtherFlex Module. Attach the ENMC to the network you want to monitor. The ENMC allows you to individually select and monitor each backplane segment on your CoreBuilder 5000 Integrated System Hub. You can assign this card to any of the 8 isolated or backplane segments.

You need to attach a CoreBuilder 5000 Private Line Card (PLC) to provide continuous eavesdropping and intrusion protection without affecting network performance. Up to 2 Private Line Cards can be connected to the EtherFlex Module.

Use the same procedure for installing Ethernet Network Monitor Cards (NMC) when you install Ethernet Private Line Cards (PLC). The PLC is attached in the same subslot location as the NMC.

Once the ENMC or PLC is attached to the EtherFlex Module, you can monitor the network using the following commands:

■ MONITOR

■ SHOW COUNTER

These commands are explained in more detail in Chapter 4,

Configuring the Module and I/O Cards

For details on installing Network Monitor Cards, refer to the documentation that accompanies the CoreBuilder 5000 Ethernet Network Monitor Card.

CAUTION: Install the daughter cards (Network Monitor or Private Line Cards) before installing any I/O cards on the EtherFlex Module.

Connecting Module Daughter Cards 3-15

Figure 3-5 provides a component side view of the EtherFlex Module

and the orientation of Network Monitor Cards on the module.

Screws

Standoffs

Subslot 3

Network monitor card

I/O card connector

Subslot 2

NMC connector

Network monitor card

Figure 3-5 Location of Network Monitor Cards on the Module

3-16 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Installing I/O Cards The EtherFlex Module supports two types of I/O cards:

■ Single-height – Can be inserted into any one of the 4 bays on the

EtherFlex Module and include the following I/O cards:

■ 3-port BNC 10BASE-2

■ 4-port RJ-45 10BASE-T

■ 2-port 10BASE-FB/FL

■ Double-height – Can only be inserted into adjacent bays (1 and 2

or 3 and 4) on the EtherFlex Module and include the following I/O cards:

■ 3-port Male AUI

■ 3-port Female AUI

This section describes:

■ General Installation Rules

■ Installing I/O Cards

General Installation

Rules

■ Replacing Existing I/O Cards

This section describes general rules to follow when installing and replacing I/O cards on an EtherFlex Module.

■ Install daughter cards on the EtherFlex Module before you install

I/O cards.

■ If you replace I/O cards after configuring the module, you must

reconfigure the module, if the port number and media type change.

■ If you add an I/O card and the existing I/O card port number and

media type remain constant, then the module configuration does not change.

■ I/O card ports are numbered sequentially in the bays on an EtherFlex

Module. When replacing or installing I/O cards, the I/O cards configured in the bays below the newly-installed I/O card must be reconfigured.

Installing I/O Cards 3-17

■ When using the SHOW MODULE Command, follow these guidelines

when numbering the slot and subslot parameters:

■ EtherFlex Module occupies subslot 1

■ Daughtercards occupy subslots 2 and 3

■ I/O cards in the EtherFlex Module occupy subslots 4, 5, 6, and 7

(depending on the type of I/O card installed).

Installing I/O Cards This section describes how to install the following I/O cards onto an

EtherFlex Module:

■ Installing Single-Height I/O Cards

■ Installing Double-Height I/O Cards

Installing Single-Height I/O Cards

To install single-height I/O cards:

1 Remove 1 blank faceplate from the front of the EtherFlex Module. You

can select any one of the 4 bays in the module.

If you are installing more than one single-height I/O card, remove as many blank faceplates, screws, and brackets as required to insert the I/O cards.

2 Remove the 2 screws from the front of the module (Figure 3-6

Place the screws aside. You will use them again. Put the blank faceplates in a safe place for future use.

3-18 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Figure 3-6 shows the components to remove from the module when

you install a single-height I/O card.

Remove 2 screws

Remove blank faceplate

Figure 3-6 Removing 1 Blank Faceplate

3 Remove the standoff screw from the module.

Installing I/O Cards 3-19

Figure 3-7

shows each standoff screw location on the EtherFlex

Module.

Standoff screw

Standoff and screw

Figure 3-7 Removing the Standoff Screw From the Module

4 Insert the I/O card from behind the module faceplate (Figure 3-8) and

orient the connector on the I/O card with the I/O connector on the module.

Ensure the I/O faceplate is flush with the module faceplate.

3-20 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Figure 3-8 shows how to insert a single-height I/O card onto an

EtherFlex Module.

Figure 3-8 Inserting a Single-Height I/O Card

5 Align the I/O card connector with the I/O connector on the module. 6 Gently press on the I/O card until you hear a click. 7 Place the standoff screw on the module and insert it through the

I/O card into the module. Tighten the standoff screw.

Installing I/O Cards 3-21

When you replace a bracket on the faceplate, make certain that the concave side of the bracket faces you and not the module faceplate.

Figure 3-9

shows how to position a bracket on the outside of the

module faceplate.

Bracket

Align screw holes on the bracket to the holes on the module faceplate

Concave side view of the bracket

Figure 3-9 Attaching the Bracket to the Module Faceplate

Brackets are always positioned on the outside of the module faceplate.

8 Screw in the I/O card from the front of the module.

Insert the same 2 screws you removed from the blank faceplate. Lightly tighten each screw first, and then tighten all of the screws.

If you replace I/O cards after configuring the module, you must reconfigure the module. You do not have to reconfigure the module with a newly-inserted I/O card.

9 Insert the EtherFlex Module into the hub. Follow the instructions

described in the section Installing the Module

in this chapter.

3-22 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Installing Double-Height I/O Cards

To install double-height I/O cards:

1 Remove 2 blank faceplates from the front of the EtherFlex Module.

Remove the 4 screws and the bracket from blank bays 1 and 2 or 3 and 4 on the front of the module.

Place the blank faceplates, screws, and bracket aside.

You only have 2 choices for positioning a double-height I/O card. You can insert a double-height I/O card in bays 1 and 2 or bays 3 and 4.

Installing I/O Cards 3-23

Figure 3-10 shows the components to remove from the module when

you install a double-height I/O card.

Remove blank faceplate

Remove screws

Remove bracket

Remove blank faceplate

Figure 3-10 Removing 2 Blank Faceplates

2 Remove the corresponding 2 standoff screws from the module (see

Figure 3-7

) and place them aside.

3-24 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

3 Insert the I/O card from behind the module faceplate (Figure 3-11) and

orient the connector on the I/O card with the I/O connector on the module.

Ensure the I/O faceplate is flush with the module faceplate.

Figure 3-11

shows how to install a double-height I/O card onto an

EtherFlex Module.

Figure 3-11 Installing a Double-Height I/O Card

4 Gently press the I/O card into place until you hear a click. 5 Screw in the 2 standoff screws through the I/O card onto the module. 6 Screw in the I/O card from the front of the module.

Insert 2 of the same screws you removed from the blank faceplates. Lightly tighten each screw first, and then tighten all of the screws.

Installing I/O Cards 3-25

If your EtherFlex Module contains empty bays, leave the blank faceplates in the module. Store any unused blank faceplates, brackets, and screws in a safe place.

7 Insert the EtherFlex Module into the hub. Follow the instructions

described in the section Installing the Module

in this chapter.

Replacing Existing

I/O Cards

This section describes the following procedures for replacing an existing I/O card:

■ Replacing a Single-Height I/O Card

■ Replacing a Double-Height I/O Card

Replacing a Single-Height I/O Card

To replace a single-height I/O card with a double-height I/O card:

1 Remove the EtherFlex Module from the hub. 2 Remove the 4 screws and bracket from the front of the existing

I/O card and the adjacent blank faceplate or adjacent I/O card. Place the screws aside. You will use them again. Place the blank

faceplate in a safe place for future use.

3 Remove the corresponding standoff screws from the module. Place

them aside.

4 Remove the I/O cards or blank faceplates and place them aside. 5 Insert the new I/O card from behind the module faceplate (Figure 3-11

Orient the connector on the I/O card with the I/O connector on the module.

Ensure the I/O faceplate is flush with the module faceplate.

6 Screw in the standoff screws on the module. 7 Screw in the I/O card from the front of the module.

Insert 2 of the same screws you removed from the existing I/O card and blank faceplate. Lightly tighten each screw first, and then tighten all of the screws.

8 Insert the EtherFlex Module into the hub. Follow the instructions

described in the section Installing the Module

in this chapter.

3-26 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Replacing a Double-Height I/O Card

To replace a double-height I/O card with a single-height I/O card:

1 Remove the EtherFlex Module from the hub. 2 Remove the 2 screws from the front of the existing I/O card. Place the

screws aside.

3 Remove the standoff screws from the module. Place them aside. 4 Remove the I/O card and place it aside. 5 Get the blank faceplate, 2 screws, and 1 bracket that you put aside

when you initially unpacked your module and I/O cards.

If you need a blank faceplate, screws, or bracket, call your service representative and order Part Number 6100D-SPAR for a parts replacement kit.

6 Insert the single-height I/O card from behind the module faceplate

(Figure 3-10

) and orient the connector on the I/O card with the I/O

connector on the module. Ensure the I/O faceplate is flush with the module faceplate.

7 Insert the blank faceplate from behind the module faceplate into the

empty bay.

The blank faceplate is inserted from behind the module faceplate. Do not place the blank faceplate on the front of the module faceplate.

8 Screw in the I/O card and blank faceplate from the front of the module.

Use the 2 screws you removed from the existing I/O card and the 2 screws you initially received with your module.

Lightly tighten each screw first, and then tighten all of the screws.

9 Screw in the standoff screws on the module.

10 Insert the EtherFlex Module into the hub. Follow the instructions

described in the next section, Installing the Module

Installing the Module 3-27

Installing the Module

You do not need to power down the CoreBuilder 5000 Integrated System Hub to install

or remove the EtherFlex Module. You can insert

the module while the hub is operating (this is called a hot swap).

The EtherFlex Module I/O cards must be inserted with the EtherFlex Module removed from the hub.

To install the EtherFlex Module:

1 After all the I/O cards are installed on the EtherFlex Module, insert the

module into the hub.

2 Configure the EtherFlex Module:

■ If you plan to install the EtherFlex Module in a managed hub (for

example, DMM Version 2.2 or later), go to step 3 to complete the installation. To configure the appropriate settings, go to Chapter 4, Configuring the Module and I/O Cards

■ If you plan to insert the EtherFlex Module in an unmanaged hub,

configure the DIP switch settings on the module to the desired settings and go to step 4.

3 To determine if the hub has adequate power for the new module, from

the Management Module command line enter the SHOW POWER BUDGET command. Refer to Appendix A

, Specifications, for the power

requirements for each of the specified watt ranges. Refer to the CoreBuilder 5000 Distributed Management Module

Commands Guide for information on the SHOW POWER BUDGET command.

4 Locate an open slot in the hub. Remove the blank panel on the hub to

expose a slot for the module.

3-28 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

5 Insert the module into the board guides at the top and bottom of the

slot and slide it into the hub by pressing firmly at the top and bottom of the faceplate. Figure 3-12

shows the installation of the module.

Figure 3-12 Installing a CoreBuilder 5000 Module in a Hub

Installing the Module 3-29

6 Close the EtherFlex Module ejectors (Figure 3-13).

Opened

eject or

Figure 3-13 Opened and Closed Module Ejectors

Closed

ejector

7 Fasten the spring-loaded screws on the front of the EtherFlex Module

faceplate to the hub using your fingers (do not overtighten).

8 Attach the appropriate cables to the I/O cards on the EtherFlex Module.

3-30 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Figure 3-14 shows a cable connection to an RJ-45 10BASE-T I/O Card.

CoreBuilder 5000 hub

Figure 3-14 EtherFlex Module RJ-45 Cable Connection

RJ-45 10BASE-T I/O Card

RJ-45 connector

Monitoring the Front Panel

Monitoring Module

Status

Monitoring Port

Status Through LEDs

Use the LEDs on the front panel of each I/O card installed in the EtherFlex Module to monitor the status of each port. Every port on each I/O card has a single LED associated with it. This is a bi-color LED which indicates:

■ Module status

■ Port status

■ Port activity

Module status is displayed through the individual port LEDs on each I/O card. Flashing LEDs on the I/O cards installed in an EtherFlex Module indicate that there may be a problem with the motherboard or an I/O card.

The EtherFlex Module has 1 bi-color LED for each port on each I/O card. Each LED indicates the state of a port as described in Table 3-3

The colors of the LEDs indicate the following:

■ Green – Displays port status information

■ Yellow – Displays port traffic information

Monitoring the Front Panel 3-31

If a port has a problem, the LED blinks green. The number of blinks indicates the type of problem. If the LED turns yellow during activity, the port is OK.

Figure 3-15

AUI-M

shows the location of the LEDs on each type of I/O card.

Bi-Color Port Status and Activity LEDs

AUI-F

10BASE2

10BASET

FB/FL

Male AUI

Figure 3-15 LED Location on Each Type of I/O Card

Female AUI

BNC 10BASE-2 RJ-45 10BASE-T

10BASE-FB/FL

3-32 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

Table 3-3 describes the possible port states indicated by the port LEDs.

Table 3-3 EtherFlex Module I/O Card LED Interpretations

LED Name Color State Indicates

Port Status/Activity Green On Port enabled and link OK.

Yellow1On Continuous traffic activity on port.

During a software download, all LEDs on the I/O cards in the EtherFlex Module

are yellow.

1 blink Link failure on the port.

No loopback detected on the AUI. Carrier loss on the AUI.

No power on the I/O card. 2 blinks I/O card port partitioning. 3 blinks Port receive jabber error on only a Male

AUI I/O card and a 10BASE-FB/FL I/O

card configured as FB. 4 blinks Remote link failure on only

10BASE-FB/FL I/O card configured as FB Off Port disabled.

Module has no power.

I/O card is unknown.

Software download to the EtherFlex

Module in progress. Blinking Normal activity on the port.

Verifying LED and Network Operation

This section describes LED and network verification for the EtherFlex Module, including:

■ Using the CoreBuilder 5000 Controller Module to Verify Bi-Color

LED Operation

■ Using the DMM to Verify Network Connections

For more information on the DMM, refer to the CoreBuilder 5000 Distributed Management Module User Guide.

Verifying LED and Network Operation 3-33

Using the

CoreBuilder 5000

Controller Module

to Verify Bi-Color LED

Operation

Using the DMM to

Verify Network

Connections

The CoreBuilder 5000 Integrated System Hub controller module is equipped with an LED test button on the front panel to verify LED operation.

When you press the LED test button:

1 The module initiates a test to all modules in the hub. All LEDs should

respond by lighting continuously for approximately 5 seconds.

2 During this time period, the LEDs should alternate between green and

yellow about every ½ second. Any LED that does not light is defective. (Refer to Chapter 5, Troubleshooting, for more information on defective LEDs.) The LED test does not disrupt network operation.

During a software download to the EtherFlex Module all of the port LEDs are illuminated yellow until the download process is complete.

The Distributed Management Module (DMM) allows you to verify each network connection (both backplane and isolated) for all CoreBuilder 5000 modules and monitor cards installed in your hub.

To verify network connections:

1 Press the Display Control toggle button located on the front of the

DMM.

2 Observe the DMM as it sequentially cycles through each network

connection (Ethernet 1 to 8 or Isolated 1 to 8).

3 Each status port LED associated with the network indicated on the

DMM LED matrix display illuminates.

3-34 CHAPTER 3: INSTALLING THE MODULE AND I/O CARDS

The following example illustrates the verification process.

Verifying Network

Connections for the

EtherFlex Module

Where to Go From Here

This example describes how to verify network connections for a newly-installed EtherFlex Module. Assume you have one module with 2 ports connected to Ethernet networks 1 and 3 (E1 and E3).

To verify the network configuration:

1 Press the Display Control toggle button located on the front of the

DMM.

2 Once initiated, the DMM cycles through each network connection (E1

and E3) and performs the following: a Displays the current network under examination (as shown on the

DMM LCD display).

b Lights the status LEDs associated with the current network.

3 Because ports on the module are connected only to E1 and E3, the

network verification only lights the status LEDs associated with those networks.

However, if you configure the module with connections to all 8 backplane networks, the network verification process cycles through all 8 networks.

Once you complete this chapter, go to Chapter 4. Chapter 4, Configuring the Module and I/O Cards, describes how to configure the CoreBuilder 5000 EtherFlex Module and I/O cards using management commands.

CONFIGURING THE MODULE AND

Configuration Overview

I/O CARDS

This chapter describes how to configure the EtherFlex Module and I/O cards. The EtherFlex Module must be configured using Distributed Management Module (DMM) software Version 2.2 or later.

This chapter contains the following sections:

■ Configuration Overview

■ Configuring the EtherFlex Module and I/O Cards

■ Showing Module Configurations

■ Gathering Statistics

■ Monitoring the Network

■ Where to Go From Here

The CoreBuilder™ 5000 Distributed Management Module provides network management for the CoreBuilder 5000 Integrated System Hub and its modules. Use network management commands, rather than the DIP switches, to configure the module. All of the DIP switch settings on the EtherFlex Module are ignored if an appropriate CoreBuilder 5000 network management module (for example, DMM Version 2.2 or later) is already installed in the hub.

If network management is present when you first install the module, the:

■ Network defaults to isolated mode.

■ Ports are automatically disabled (so that users cannot join the

network undetected by network management).

You must enable the ports you want to use and set the module ports to the appropriate network using management commands.

4-2 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Configuring the EtherFlex Module and I/O Cards

Set Port Mode

Commands

Use the following SET PORT and SET MODULE network management commands to configure the EtherFlex Module and I/O cards:

■ Set Port Mode Commands

■ Enable/Disable Link Integrity Command

■ Set Port Alert Filter Command

■ Set Port Auto Polarity Command

■ Set Port Squelch Command

■ Enable/Disable SQE Test Mode Command

■ 10BASE-FB/FL Commands

■ Network Selection

For additional information on network management commands, refer to the CoreBuilder 5000 Distributed Management Module Commands

Guide.

The management commands described in this section apply to all I/O cards supported by the EtherFlex Module except where noted.

This section describes the following SET PORT MODE commands:

■ Enable/Disable/Shutdown Ports

■ Set Port Redundancy

■ Set Remote Diagnostics

Enable/Disable/Shutdown Ports

This command allows you to enable, disable, and shut down each of the ports on any I/O card on an EtherFlex Module.

When a port is set to:

■ Enable – It transmits to and receives data from the network to

which the port is assigned.

■ Disable – It does not transmit or receive data. (Link Integrity is not

affected.)

■ Shutdown – It turns off link integrity and the transmitter. The port

responds with status OFF at the terminal.

Configuring the EtherFlex Module and I/O Cards 4-3

Use the following command to enable, disable, or shut down a port:

SET PORT {

slot .por t

{

slot

} MODE {disable}

.all } {enab le }

{shutdown}

Set Port Redundancy

This command allows you to set redundancy between ports on RJ-45 10BASE-T, Male AUI, and 10BASE-FB/FL I/O Cards on an EtherFlex Module. When you set 2 ports redundant to each other, the secondary port takes over if the primary port fails.

Use the following command to set redundancy between ports:

SET PO RT {

slot.port

} MODE {redundant} {

{non -red un dant }

slot.p or t

}

Refer to Chapter 2, the section Setting Redundant Links, for an example of port redundancy.

You can set redundancy on mixed-media ports on the following I/O cards:

■ RJ-45 10BASE-T

■ Male AUI

■ 10BASE-FB/FL

4-4 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Set Remote Diagnostics

On the EtherFlex Module with an RJ-45 10BASE-T I/O Card, a port you configure for remote diagnostics will transmit Link Integrity only if it receives Link Integrity. This allows the RJ-45 10BASE-T I/O Card Remote Diagnostic feature to be used in a redundant configuration to provide even more fault tolerance (Figure 4-1

ONline or CoreBuilder 5000 hub

Primary

port

Backup port

transmit

receiv e

transmit

receive

CoreBuilder 5000 hub

receive

transmit

receive

transmit

Remote

diagno stic

Remote diagnostic

RJ-45 10BASE-T

on an

EtherFlex

Module

Figure 4-1 Remote Diagnostics Example

For example, if the primary port’s transmit link fails, the remote diagnostic port on the RJ-45 10BASE-T I/O Card will stop transmitting Link Integrity. The primary port will then sense the link failure and switch over to the backup port.

Use the following command to set remote diagnostics:

SET PO RT {

slot.port

} MODE {remote_diagnostics} {

{non _rem ot e_di agn osti cs }

slot.port

}

The last variable (slot.port) in the command above is optional. When Remote Diagnostic mode is enabled, it is referred to as a buddy port.

Configuring the EtherFlex Module and I/O Cards 4-5

Enable/Disable Link

Integrity Command

Set Port Alert Filter

Command

This command allows you to enable or disable Link Integrity for all ports on an RJ-45 10BASE-T I/O Card in an EtherFlex Module in networks that comply with the 10BASE-T standard.

You should set Link Integrity to:

■ Disable – When connecting to older equipment that does not

comply with the 10BASE-T standard.

■ Enable – For all ports on your I/O card. You must enable Link

Integrity at both ends of the connection.

Use the following command to enable or disable Link Integrity for each port:

SET PORT {

slot.port

{

slot.

all} {disabl e}

} LINK_ IN TE GR IT Y {ena ble }

This command allows you to override the PORT FILTER command feature on a port-by-port basis on any I/O card in an EtherFlex Module. The PORT FILTER command feature enables or disables the DMM delivery of port up and port down traps. You can use this command to continue to monitor port status on critical ports (for example, file servers) while alerts from other ports are disabled.

Configure Alert Filter to:

■ Enable – To use the PORT ALERT filtering feature.

■ Disable – To cause all port up and port down alerts to display.

Use the following command to enable or disable the port up and port down alerts for a port:

SET PO RT {

slot.port

{

slot.

all} {enabl e}

} ALERT_FILTER {disable}

The following output is an example of the SET PORT ALERT_FILTER command issued for port 1 of a module in slot 1:

CB50 00> set po rt 1.1 aler t_filter di sable Port 01 .01 Alert Filter set to DISABLE.

Set the SET PORT ALERT PORT_UP_DOWN FILTER command before you use the SET PORT ALERT FILTER command.

4-6 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

For more information on these commands, refer to the CoreBuilder 5000 Distributed Management Module Commands Guide.

Set Port Auto

Polarity Command

Set Port Squelch

Command

This command enables an RJ-45 10BASE-T I/O Card in an EtherFlex Module to automatically switch the polarity of twisted pair cabling. If, for instance, you erroneously reverse the polarity of some twisted pair cabling while assembling it, the AUTO POLARITY command enables you to automatically detect this problem and reverse the polarity.

Use the following command to enable or disable auto polarity for a port:

SET PO RT {

slot.port

{

slot.

all} {ena ble}

} AUTO_POLARITY {disable}

This command allows you to establish the squelch level on the module as either normal (high) or low (sensitive) for ports on an RJ-45 10BASE-T I/O Card in an EtherFlex Module. The squelch level is factory-set to ''normal'' to conform to the 10BASE-T standard.

There are two squelch settings for the module:

■ Low setting – Allows ports to receive weaker signals, allowing

longer distances. Increases the achievable link distance, with the added risk of losing packets to impulse noise.

■ Normal setting – Allows ports to receive signals compliant with the

10BASE-T standard.

Use the following command to set squelch mode for a port:

SET PO RT {

slot.port

{

slot.

all} {low}

} SQU ELCH {norma l}

Configuring the EtherFlex Module and I/O Cards 4-7

Enable/Disable SQE

Test Mode Command

10BASE-FB/FL

Commands

This command allows you to enable or disable SQE testing for ports on a Male AUI I/O Card in an EtherFlex Module. The SQE test mode setting tests the collision detection capability of the AUI port after each transmission.

Use the following command to enable or disable SQE testing for each port:

SET PO RT {

slot .por t

{

slot .

all} {dis able }

} SQE_TEST {enable}

When SQE testing is:

■ Enable – You can connect the port to any device except repeaters.

Enable is the default setting.

■ Disable – You can connect the port to baseband repeaters and

multi-port transceivers.

This section describes the following 10BASE-FB/FL commands:

■ FORCE 10BASE-FB/FL CONFIGURATION

■ SET AUTOSENSE

Force 10BASE-FB/FL

This command allows you to force a network to use FB or FL signaling. Because the Ethernet fiber ports in your configuration can be FB or FL, this command allows your network to be compatible with your existing equipment.

Use the following command to force a network to use FB or FL protocol:

SET PO RT {

slot.port

} FORCE _C ON FIGU RA TION {FL_ mode } {FB_mod e}

4-8 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Set Port Autosensing

This command allows you to enable or disable the automatic sensing feature. The autosense feature automatically knows the protocol (FB or FL) being used on the network.

Use the following command to enable or disable the autosensing feature:

SET PO RT {

slot.port

{

slot.

all} {disable}

} AUTOSENSE {enable}

When autosense is:

■ Disabled – The media configuration field shows whether the port is

using FB or FL protocol.

■ Enabled – The media sense field shows whether the port is using

FB or FL protocol. The media module sense is what the FB/FL chip on the Fiber I/O card uses to determine the protocol on the line (either FB or FL).

If autosensing is enabled, the actual protocol running on the port is shown by the media sense field and not the media configuration field.

Network Selection This command provides port-level configuration flexibility for the

CoreBuilder 5000 Integrated System Hub. You can assign ports collectively or individually, to any of the 8 backplane segments or any of the 8 isolated segments. The module supports up to 12 segments simultaneously, in any combination.

Refer to the CoreBuilder 5000 Integrated System Hub Installation and Operation Guide, Chapter 1, for a complete discussion of the CoreBuilder 5000 Integrated System Hub architecture.

The DIP switch settings on the module refer to the backplane connection as the channel selection (CHSEL). The channel setting and the network setting are the same.

Configuring the EtherFlex Module and I/O Cards 4-9

Assigning Ports on a Module to the Network

The DIP switch settings on the EtherFlex Module allow you to assign all ports (collectively) on the module to network 1 through 8 or to an extended segment. Network management lets you assign one or more ports to a network.

Use the following command to assign a port to a network:

SET PO RT {

slot.port

{

slot.

all} {isola te d_ 1... _8 }

} NET WORK {eth erne t_ 1. .._8 }

Use this command to assign users to backplane segments or isolated segments (workgroups). For instance, to create a module segment workgroup, you must assign all of the users in the workgroup to one isolated network (for example, ISOLATED_1).

Assigning a Daughter Card to a Network

If you have a CoreBuilder 5000 Ethernet Network Monitor Card or Private Line Card installed on the module, network management allows you to assign the card to a network. The CoreBuilder 5000 EtherFlex Module supports up to 2 daughter cards. You can assign the daughter cards to any of the 8 backplane segments, whether or not any of the ports are assigned to that segment. The daughter cards can also be assigned to any isolated segment.

Use the following command to assign a daughter card to a network:

SET MO DUL E {

slot.subslot

} NETWORK {ethernet_1...8}

{isolat ed _1 ..._ 8}

The CoreBuilder 5000 Ethernet Network Monitor Card is configured as subslot 2 or 3 on the EtherFlex Module. The default, subslot 1, refers to the EtherFlex Module.

4-10 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Showing Module Configurations

Show Module

Command

You can display status information about the EtherFlex Module using the following network management commands:

■ SHOW MODULE

■ SHOW PORT

This command allows you to display both brief and verbose information about a particular module.

Use the following command to display module information:

SHOW MODULE {

slot.subslot

{

slot.

all} {no_verbo se }

} {verbose}

The following output is an example of the SHOW MODULE VERBOSE command issued for an EtherFlex Module installed in slot 2:

CB50 00> show m odule 2.1 verbose

Slot Module Version Network General Info rmation

----- - --------- --- ------ ------ ---- ---------- ---------

02.01 6104M-MOD 1.00 PER_PORT

6104M-MOD: CB5000 EtherFlex Module

Boot Versio n: 1.00 Non-Volatil e DIP Sett ing: ENAB LED

When you issue a SHOW MODULE command for a subslot occupied by an EtherFlex I/O card, the system tells you the bay is empty, whether or not there is an I/O card in that bay. This is normal operation.

To determine if an I/O card occupies a particular bay, use the SHOW INVENTORY command instead of the SHOW MODULE command.

Showing Module Configurations 4-11

Show Port Command This command allows you to display brief and verbose information on

both individual ports and all ports collectively.

Use the following command to display port information:

SHOW PORT {

slot.port

{

slot.

all} {no_ve rb ose}

} {verbose}

The following output is an example of the SHOW PORT ALL VERBOSE command issued for an RJ-45 10BASE-T I/O Card in an EtherFlex Module installed in slot 2.

CB50 00> show port 2.all verbose

Port Di splay for Module 6104D -TPP:

Port Mode Status Netwo rk Gener al I nform at ion

---- ---- ---- ---- -- ---- ----- -- ---- -- ----- -- -- ---- -

02.01 DISABLED LINK FAILURE ISOLATED_1

Aler t Fil te r: ENABLE D Port Connec tor RJ-4 5 Network Dip Setting:I SOLATED_ 1 Squelch NORMAL Link Integr ity: ENAB LED Auto Polarity: ENABLED

02.02 DISABLED LINK FAILURE ISOLATED_1

Alert Filte r: ENA BLED Port Co nnector: RJ-45 Network Dip Setting:I SOLATED_ 1 Squelch NORMAL Link Integr ity: ENAB LED Auto Polarity: DISABL ED

02.03 DISABLED LINK FAILURE ISOLATED_1

Alert Filter: ENABLED Port Connector: RJ-45 Network Dip Setting:I SOLATED_ 1 Squelch NORMAL Link Integr ity: ENAB LED Auto Polarity: ENABLE D

The output example shown above lists only ports 1, 2, and 3 on the RJ-45 10BASE-T I/O Card. The card can have up to 4 ports.

4-12 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Status Information

When a BNC 10BASE-2 I/O Card is installed on an EtherFlex Module, the status information is different from the other I/O cards.

The status information for a BNC 10BASE-2 I/O Card includes the following additional states:

■ Termination

■ Grounding

The following output is an example of the SHOW PORT ALL VERBOSE command issued for port 5 on a BNC 10BASE-2 I/O Card in an EtherFlex Module installed in slot 2.

CB50 00> show port 2.all verbose

Port Di splay for Module 6104M -MOD:

Port M ode Status Network Gen er al Info rm atio n

----- ----- - --------- ----- ---------- -------- ---------

02.05 D ISABLED OK ISOL ATED_1

Alert Filte r: DISABLED Port Connector: FIBER Network Dip Setting: ISOLATED_1 High Power Optics: DISABL ED Media Config: FB Media Sense: FL Autose nsing: ENAB LED

The status information for a 10BASE-FB/FL I/O Card includes the following additional states:

■ Autosense

■ Media Configuration

■ Media Sense

Gathering Statistics 4-13

The following output is an example of the SHOW PORT ALL VERBOSE command issued for port 3 on a 10BASE-FB/FL I/O Card in an EtherFlex Module installed in slot 2.

CB50 00> show p ort 2.all verbose

Port Di splay for Module 6104M -MOD:

Port Mod e Status Network Gene ral Infor mation

---- --- ----- -- --------------- -------- ------ --------- ---

02.03 DISABLED OK ISOLATED_ 1

Alert Filter: DISAB LED Port Connector: FIBER Network Dip Setting: IS OLATED_1 High Power Optics DISABLE D Media Config: FB Media Sense: FL Autose nse: ENABLED

Gathering Statistics This section describes how the EtherFlex Module gathers statistics. The

I/O cards are each equipped with a repeater chip that provides statistics-gathering on each port without the use of a Network Monitor Card. The statistics that are available include:

■ Network – Network statistics are presented by gathering events

from all ports on the EtherFlex Module and from other modules in the hub whose ports are on the same network, and summarizing them.

■ Module – Module statistics summarize the events on all ports on a

specified module on the same network.

■ Port – Per-port statistics are the number of events from traffic

entering the module from the ports on the I/O cards.

4-14 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Gathering Repeater

Statistics

Monitoring the Network

The EtherFlex Module gathers repeater statistics for each port (for example, collision, partition, late collision, data rate mismatch, and short event statistics).

Unlike repeater statistics, Ethernet and RMON statistics are available only when a Network Monitor Card is defined. The NMC can return network statistics from all cards in the hub.

You can install the monitor card on either the EtherFlex Module or the Distributed Management Module for Ethernet (DMM-EC). For more information on the DMM, refer to the CoreBuilder 5000 Distributed

Management Module User Guide.

The CoreBuilder 5000 Ethernet Network Monitor Card does not provide per-port statistics for ONline modules when it is installed on the EtherFlex Module. If, however, the card is installed on the DMM, it is possible to collect per-port statistics for ONline modules.

This section describes how to monitor your network configuration. You can monitor the network using the following commands:

■ MONITOR

■ SHOW COUNTER

Monitor Command This command allows you to monitor each network (individually) by

specifying the backplane segment, isolated or backplane, to which your ports are configured. The MONITOR command reports the same information as the SHOW COUNTER command except that the MONITOR command display captures events only at the time of the request.

Use the following command to monitor a network:

MONITOR {mm:ss} {ETHERNET} {ethernet_1..._8}

{REPEATER} {isolated_1..._8} {RMON}

The system-specified range of time allotted for monitoring the network is 00 to 30 minutes (mm) and 05 to 59 seconds (ss). Use these ranges when specifying a length of time to monitor your network.

Monitoring the Network 4-15

The following output is an example of the MONITOR REPEATER command for an EtherFlex Module assigned to network ethernet_4. This example monitors ethernet_4 every 5 seconds.

CB50 00> monito r 00:05 re peater ethernet _4 port 8.4

Repeater Statistics for ETHERNET_4

-----------------------------------------------------------Cumulative Last Time In terval

------ --------- -------- -------------------- -------- ---------

Readable Frames 15680 30 40 Readable Octets 0 0 Runts 0 0 FCS Er rors 0 0 Late Events 0 0 Short Events 0 0 Frame Too Long 0 0 Very Long Events 0 0 Alignm ent Error s 0 0 Collis ions 0 0 Data Rate Mismatches 0 0 Auto Partition Count 0 0 Last Source Addre ss N/ A 08-00-8f -00-11-11

Displa y will refr esh every 5 s econds. Press C TRL-C to exit.

Show Counter

Command

This command displays cumulative information. The SHOW COUNTER command provides you with detailed information on Ethernet and RMON statistics. RMON statistics-gathering requires a Network Monitor Card (NMC). Ethernet statistics do not require an NMC.

Use the following command to gather Ethernet and RMON statistics:

SHOW COUNTE R {ET HE RNET } {e ther ne t_1. .. _8}

{RMON}

Use the following command to view statistics on an isolated network:

SHOW COUNTE R REP EA TER {isolated_x} {module}

4-16 CHAPTER 4: CONFIGURING THE MODULE AND I/O CARDS

Use the following command to show network, module, and port-level repeater statistics:

SHOW COUNTE R REPE ATER {et hern et_1. .._8 }

SHOW COUNTE R REPE ATER { SHOW COUNTE R REPE ATER {

Both the MONITOR and SHOW COUNTER commands provide information for ongoing network statistics, as follows:

■ MONITOR – Displays network statistics periodically at the time

interval you specified in the command.

■ SHOW COUNTER – Allows you to display all statistics, at one time,

since the last CLEAR COUNTER command.

The following example illustrates RMON statistics gathering:

CB50 00> show c ounter rmon hosts ethernet _1

RMON Ho sts Table for Host Addr ess 08-00 -19-A4-B3 on Port 5.12

------ --------- -------- -------------------- -------- --------- Receiv ed Packets 24000 Receiv ed Octets 285000 Transm itted Pack ets 1200 Transm itted Octe ts 75000 Transm itted Erro rs 124 Transm itted Broa dcast Pac kets 150 Transm itted Mult icast Packets 280

module port

}{

{isol ated_ 1... _8}

}{

slot

}

slot .port

}

Where to Go From Here

For more information on Ethernet, RMON, and repeater statistics, refer to the CoreBuilder 5000 Distributed Management Module Commands Guide.

Once you complete this chapter, go to Chapter 5 if necessary. Chapter 5, Troubleshooting, describes troubleshooting procedures for the CoreBuilder 5000 EtherFlex Module.

If you have problems configuring or installing your media module, refer to Chapter 5 prior to contacting customer support.

TROUBLESHOOTING

This chapter describes troubleshooting procedures for the CoreBuilder verifying that the module is operating properly.

This chapter contains the following sections:

■ Troubleshooting Using the I/O Card Port Status LEDs

■ Technical Assistance

■ Where to Go From Here

™

5000 EtherFlex Module. This information can assist you in

5-2 CHAPTER 5: TROUBLESHOOTING

Troubleshooting Using the I/O Card Port Status LEDs

A blinking Port Status LED signals a problem with a port or a link connected to a port. Once a port detects a problem, you can analyze the problem by counting the number of blinks.

Table 5-1

outlines possible causes and several solutions for problems

indicated by blinking Port Status LEDs.

Table 5-1 Port Status LED Troubleshooting

LED State

1 Blink Link Failure Cables not connected Connect cables.

2 Blinks Port

3 Blinks Jabber Error Packets are greater

4 Blinks Remote Link

Off Ports

Indication Possible Cause Corrective Action

Cables broken Check cables with cable

tester. Repair or replace cables.

Link Integrity mismatch Make sure that both ends of

the connection have the same Link Integrity setting.

Faulty cable Check cable with cable tester.

Partitioned

Failure

Disabled

Looped network Check network wiring

than the allowable Ethernet packet size

The connection is bad between the transmitting port that is reporting the error and the receiving port that is connected to the transmit port.

Ports disabled Enable ports. EtherFlex Module not

powered Burned out Status LED Press the LED test on the

Bad EtherFlex Module or I/O card

Repair or replace cable.

topology and remove any loops that have been created.

Check the directly-connected device.

Check the cable and connections to this module and the directly-connected device.

Check the Controller Module Power LEDs.

Controller Module. Replace module.

3com CoreBuilder 5000 EtherFlex Module User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

FIGURES

TABLES

HOW TO USE THIS GUIDE

Audience This guide is intended for the following people at your site:

Structure of This Guide

Document Conventions

Related Documents This section provides information on supporting documentation,

■ 3Com Documents

■ Reference Documents

INTRODUCTION

EtherFlex Module Description

■ EtherFlex Module Physical Description

EtherFlex Module I/O Cards

I/O Card Descriptions

BNC 10BASE-2 I/O Card Features

RJ-45 10BASE-T I/O Card Features

Male AUI I/O Card Features

Understanding Female AUI I/O Card Limitations

10BASE-FB/FL I/O Card Features

Sample Etherflex Module Application

Where to Go From Here

Understanding General Network Configuration Rules

Basic Network Rules Table 2-1

■ Fiber Backbone Configuration Rules

Using Patch Panels 2-11

Setting Redundant Links

Where to Go From Here

Precautionary Procedures

General Installation Rules

Quick Installation Table 3-1 outlines the steps for the installation of your module and

Unpacking Procedures

Before You Begin Before installing the EtherFlex Module and I/O cards, be sure that the

Setting the DIP Switches

■ DIP Switch Features

Setting the DIP Switches 3-7

DIP Switch Definition Table 3-2 briefly describes the DIP switch settings. Each DIP switch

BNC 10BASE-2 I/O Card Jumpers

Figure 3-2 BNC 10BASE-2 I/O Card Jumper Settings

External Termination

Internal Termination

Setting BNC 10BASE-2 I/O Card Termination

Connecting Module Daughter Cards

■ General Installation Rules

■ Installing I/O Cards

Installing I/O Cards 3-17

Installing Single-Height I/O Cards

Installing Double-Height I/O Cards

Replacing a Single-Height I/O Card

Replacing a Double-Height I/O Card

Installing the Module

Monitoring the Front Panel

Verifying LED and Network Operation

Where to Go From Here

Configuration Overview

Configuring the EtherFlex Module and I/O Cards

■ Set Port Mode Commands

Enable/Disable/Shutdown Ports

Set Port Redundancy

Set Remote Diagnostics

Commands

Force 10BASE-FB/FL

Set Port Autosensing

Network Selection This command provides port-level configuration flexibility for the

Assigning Ports on a Module to the Network

Assigning a Daughter Card to a Network

Showing Module Configurations

Show Port Command This command allows you to display brief and verbose information on

Status Information

Gathering Statistics 4-13

Monitoring the Network

Monitor Command This command allows you to monitor each network (individually) by

Where to Go From Here

TROUBLESHOOTING