3COM 6416SW User Manual

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ONcore ATM Switch/Control Module

Installation and User's Guide

Document Number: 17-00616-3

Printed March 1996

Model Number: 6416SW

3Com Corporation

118 Turnpike Road

Southborough, MA 01772-1886

U.S.A.

(508) 460-8900

FAX: (508) 460-8950

Federal Communication Commission Notice

This equipment has been 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 the user will be required to correct the interference at his own expense.

Canadian Emission Requirements

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de class A prescrites dans la norme sur le materiel brouilleur: "Appareils Numériques", NMB-003 édictée par le ministre des Communications.

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Interference-causing equipment standard entitled "Digital Apparatus", ICES-003 of the Department of Communications.

VDE Class B Compliance

Hiermit wird bescheinigt, class der (6416SW) in Uebereinstimmung mit den Bestimmungen der Vfg 243/1991 funkentstoert ist.

Der Deutschen Bundespost wurde das Inverkehrbringen dieses Geraetes angezeigt und die berechtigung zur Ueberpruefung der Serie auf Einhaltung der bestimmungen eingeraeumt.

Einhaltung mit betreffenden Bestimmugen kommt darauf an, dass geschirmte Ausfuehrungen gebraucht werden. Fuer die Beschaffung richtiger Ausfuehrungen ist der Betreiber verantwortlich.

ii ONcore ATM Switch/Control Module: Installation and User's Guide

This is to certify that the (6416SW) is shielded against radio interference in accordance with the provisions of Vfg 243/1991.

The German Postal Services have been advised that this equipment is being placed on the market and that they have been given the right to inspect the series for compliance with regulations.

Compliance with applicable regulations depends on the use of shielded cables. The user is reponsible for procuring the appropriate cables.

VCCI Class 1 Compliance

This equipment is in the 1st Class category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council For Interference by Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in commercial and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be caused to radio and TV receivers, etc.

Read the instructions for correct handling.

iii

Fiber Cable Classification

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 ONline System Concentrator and the ONcore Switching Hub are manufactured to the International Safety Standard EN 60950 and as such are approved in the UK under the General Approval number NS/G/12345/J/100003 for indirect connection to the public telecommunication network.

Disclaimer

The information in this document is subject to change without notice and should not be construed as a commitment by 3Com Corporation. 3Com Corporation assumes no responsibility for any errors that may appear in this document.

1995, 1996 by 3Com Corporation. All rights reserved. The information contained herein is the exclusive and confidential property of 3Com Corporation. No part of this manual may be disclosed or reproduced in whole or in part without permission from 3Com Corporation.

Trademarks

Because of the nature of this material, numerous hardware and software products are mentioned by name. In most, if not all cases, these product names are claimed as trademarks by the companies that manufacture the products. It is not our intent to claim these names or trademarks as our own.

ONdemand and TriChannel are trademarks, and 3Com, CELLplex, and ONcore registered trademarks, of 3Com Corporation.

iv ONcore ATM Switch/Control Module: Installation and User's Guide

The following terms are trademarks or service marks of the IBM Corporation in the United States or other countries: AIX, AIXwindows, IBM, NetView for AIX, Nways and RISC System 6000.

XNS is a trademark and Ethernet is a registered trademark of Xerox Corporation.

vi ONcore ATM Switch/Control Module: Installation and User's Guide

Contents

Chapter 1. Introduction to ATM ..................... 1-1

3Com ONcore ATM Subsystem ...................... 1-2

ATM Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

ATM Switch/Control Module ....................... 1-6

ATM Subsystem Traffic Management ................ 1-11

ATM Subsystem Chassis Management ............... 1-12

Benefits of Using ATM in the ONcore Hub ............. 1-14

LAN Emulation Client (LEC) ....................... 1-15

Chapter 2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Before You Start ............................... 2-1

Unpacking the Module ............................ 2-2

Installing the 6416SW Module ....................... 2-3

Verifying Normal 6416SW Operation ................... 2-7

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Meaning of the LEDs .......................... 2-10

ATM Reset Button ............................ 2-12

RS-232 Console Port .......................... 2-13

RS-232 Auxiliary Port .......................... 2-14

Chapter 3. ATM Addressing . . . . . . . . . . . . . . . . . . . . . . . 3-1

ATM Campus Networks ........................... 3-1

Network Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Network Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Defining the ATM Address of the 6416SW ................ 3-7

Setting-Up ATM Trunk Connections .................... 3-8

Using Static Routes ............................ 3-9

Trunks Within a Single Cluster/Subnetwork .............. 3-9

Trunks Between Subnetworks ..................... 3-10

Example: Configuring a Connection Between User Devices ... 3-11

Using Permanent Virtual Connections .................. 3-13

Chapter 4. Setting-Up and Using a Configuration Console .... 4-1

Contents vii

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Before You Start ............................... 4-3

Entering 6416SW Commands ...................... 4-3

Keyboard Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Command Completion . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Setting Up a Configuration Console in Normal (ASCII) Mode ..... 4-7

Setting Up a Configuration Console in SLIP Mode ........... 4-8

Returning to Normal Mode ........................ 4-9

SLIP Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

TELNET Sessions Via a Remote Switch ................ 4-12

Minimum Local Configuration ..................... 4-12

Logon Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Reconfiguring 6416SW Configuration Console Settings ........ 4-15

Saving Reconfigured Configuration Console Settings ....... 4-15

Automatic Modem Hangup ....................... 4-16

Chapter 5. Configuring the ATM Switch/Control Module ...... 5-1

Configuration Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Setting 6416SW Passwords ......................... 5-6

Administrator Password . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

User Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Setting the Internal Clock .......................... 5-9

Setting Local 6416SW Parameters .................... 5-10

Switch Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Service Contact Information ...................... 5-11

Console Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Console Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Setting the ATM Address of the 6416SW ................ 5-13

Connecting ATM media Modules ..................... 5-14

Enabling ATM Ports and Interfaces ................... 5-15

Disabling an ATM Port ......................... 5-15

Setting Up Trunks (Logical Links) .................... 5-16

Static Routes for Other Subnetworks ................. 5-16

Setting SNMP Parameters ........................ 5-17

IP Address and Subnetwork Mask (IP only) ............. 5-18

LAN Emulation Client (LE only) .................... 5-19

viii ONcore ATM Switch/Control Module: Installation and User's Guide

Default Gateway (IP & LE) ....................... 5-21

ARP Server (IP only) .......................... 5-21

Community Table (IP & LE) ...................... 5-22

Alerts (IP & LE) ............................. 5-22

Setting the LECS ATM Address ..................... 5-23

Saving Configuration Settings and Logging Off ............ 5-25

Working With Configuration Settings ................... 5-28

Reverting Configuration Changes ................... 5-28

Displaying Configuration Settings ................... 5-29

Modifying Configuration Settings ................... 5-32

Isolating and Reconnecting ATM Media Modules ........... 5-33

Fault Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33

Chapter 6. Network and Switch Management ............ 6-1

Managing the ATM Subsystem ....................... 6-1

SNMP Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Accessing MIB Files ........................... 6-3

Security Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Uploading and Downloading Operations ................. 6-5

Inband Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Out-of-band Operations . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Chapter 7. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 7-1

Phase 1: Installation and Power Problems ................ 7-2

Prerequisites for ATM Troubleshooting ................. 7-3

Diagnosing Problems from the ATM Media LEDs .......... 7-4

Diagnosing Problems from the 6416SW LEDs ............ 7-6

Diagnosing Problems with the Power Supply ............. 7-9

Phase 2: Problems During ATM Configuration ............ 7-10

Diagnosing Problems Concerning the 6416SW Console ...... 7-11

Diagnosing Problems with ATM Modules .............. 7-14

Diagnosing Problems with ATM Ports ................ 7-15

Phase 3: Problems on ATM Media Ports Without ATM Traffic ... 7-19

Diagnosing Problems with ATM Ports Attached to ATM Devices . 7-20

Checking ATM Address Registration ................. 7-22

Diagnosing Problems in the Hardware Configuration ........ 7-23

Phase 4: Problems with Normal ATM Operation ........... 7-24

Contents ix

ONcore Cannot PING the ARP Servers and Vice-versa ...... 7-25

ONcore Hub Cannot PING an ARP Client .............. 7-27

ONcore LEC Cannot PING another Client and Vice-versa .... 7-28

ARP Client Cannot PING the ARP Server .............. 7-29

Two Devices Using IP Over a PVC Cannot Ping Each Other ... 7-30

ONcore LEC Cannot Initialize to the LES/BUS ........... 7-31

Administrative Problems (Netview/SNMP/Telnet) .......... 7-34

Communication Problems in an IBM LAN Emulation Environment 7-39

Other Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44

ATM Connection Problems ....................... 7-47

Using 6416SW Trap Messages ...................... 7-50

Contacting Your 3Com Service Representative ............ 7-51

Troubleshooting Phase 1 and Phase 2 Problems .......... 7-51

Troubleshooting Phase 3 Problems .................. 7-52

Troubleshooting Phase 4 Problems .................. 7-53

Appendix A. Technical Specifications . . . . . . . . . . . . . . . . . A-1

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . A-2

Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Appendix B. RS-232 Cable and Modem Requirements ....... B-1

Attaching a Console, Modem, or Server .................. B-1

RS-232 Cable Requirements ........................ B-2

RS-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

9-Pin/9-Pin Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

9-Pin/25-Pin Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Null-Modem Interposer . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Modem Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

Modem Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Modem Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Appendix C. Error and Information Codes .............. C-1

Q.2931 Error Codes for Clear Causes ................... C-2

Maintenance Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

IBM LAN Emulation Server Error Codes ................. C-6

x ONcore ATM Switch/Control Module: Installation and User's Guide

Appendix D. Configuring AIX for Download and Upload

Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Appendix E. ONcore ATM Address Formats ............. E-1

Network Prefix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3

End System Part ............................. E-5

Appendix F. Technical Support . . . . . . . . . . . . . . . . . . . . . F-1

Online Technical Support .......................... F-2

E-mail Technical Support ......................... F-2

World Wide Web Site ........................... F-2

Support from Your Network Supplier .................... F-3

Support from 3Com ............................. F-4

Returning Products for Repair ....................... F-5

Accessing the 3Com MIB and atswitch.mib ................ F-6

3Com Technical Publications ........................ F-6

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-1

Contents xi

xii ONcore ATM Switch/Control Module: Installation and User's Guide

Figures

1-1. ATM Backplane in the 17-slot 3Com ONcore Hub ...... 1-3

1-2. Wiring Star Topology in ATM Backplane (17-slot model) ... 1-4

2-1. Installing the 6416SW Module in an ONcore Hub ....... 2-3

2-2. ONcore Module Ejectors ..................... 2-4

2-3. Attaching a Terminal to the 6416SW RS-232 Console Port . 2-6

2-4. Front Panel of 6416SW Module ................. 2-9

3-1. Components of an ATM Campus Network ........... 3-2

3-2. ATM Address Hierarchy ...................... 3-3

3-3. ATM Logical Links Used to Connect ATM Clusters ...... 3-8

3-4. Using Static Route Mappings to Connect User Devices

Across Subnetworks . . . . . . . . . . . . . . . . . . . . . . . 3-12

4-1. Working in Remote 6416SW Sessions ............ 4-14

6-1. Upgrade Operations for ATM Microcode ............ 6-5

B-1. RS-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . B-2

B-2. Console Attachment: 9-pin to 9-pin RS-232 Cable ...... B-3

B-3. Console Attachment: 9-pin to 25-pin RS-232 Cable ...... B-4

B-4. Pin Assignment: RS-232 Interposer ............... B-5

B-5. Pin Assignment: RS-232 Modem Cable ............ B-6

B-6. Example: IBM 7855-10 Modem Configuration ......... B-8

E-1. NSAP Address Formats Supported in the ONcore ATM

Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Figures xiii

xiv ONcore ATM Switch/Control Module: Installation and User's Guide

Tables

1-1. ATM Connections Supported in ONcore Hubs ......... 1-7

1-2. Maximum PING and TELNET Message Lengths ...... 1-15

2-1. Meaning of the 6416SW LEDs ................. 2-10

2-2. RS-232 Console Port Pin Assignments (DB9) ........ 2-13

2-3. RS-232 Auxiliary Port Pin Assignments ............ 2-14

5-1. 6416SW Configuration Commands ............... 5-4

7-1. 6416SW Trap Messages .................... 7-50

B-1. EIA 232 Connector-Pin Signal Assignments .......... B-2

C-1. Q.2931 Error Codes for Clear Causes in ONcore-based ATM

Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

C-2. Maintenance Codes and Meanings ............... C-5

C-3. IBM LAN Emulation Server Error Codes ............ C-6

Tables xv

xvi ONcore ATM Switch/Control Module: Installation and User's Guide

How to Use This Guide

This guide presents information on how to install and configure the 3Com ONcore ATM Switch/Control Module (Model Number 6414SW) in the 3Com ONcore Switching Hub. It describes how to diagnose and solve problems associated with the operation of the 6416SW module, and describes some of the principles of asynchronous transfer mode (ATM) technology on which the 6416SW module is based.

This guide also describes how to install and configure a management console for the 6416SW module. The ATM commands that you enter at the console to manage the ATM subsystem in the ONcore hub are described in the

ATM Command Reference Guide

ONcore Switching Hub, CELLplex 4000 Workgroup Switch

, Document Number: 17-00866.

Who Should Use this Guide

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

ATM network administrator ATM network operator

Hardware installer.

How to Use this Guide

This guide contains seven chapters and six appendixes:

Chapter 1, “Introduction to ATM” gives an overview of the main functions of the 6416SW module.

Chapter 2, “Installation” describes how to install the 6416SW module in the ONcore hub. It also describes how to connect a console to the 6416SW module in order to perform configuration tasks.

How to Use This Guide xvii

Chapter 3, “ATM Addressing” describes the components of an ATM Campus network, guidelines for defining ATM addresses for the 6416SW, how to set up trunk connections within and between networks, and how to use Permanent Virtual Connections (PVCs). It also describes how to connect a console to the 6416SW module in order to perform configuration tasks.

Chapter 4, “Setting-Up and Using a Configuration Console” describes how to set up and configure the 6416SW management console, set an ATM address, and configure facilities for SNMP management and remote login.

Chapter 5, “Configuring the ATM Switch/Control Module” describes how to configure the 6416SW module after installing it in the ONcore hub.

Chapter 6, “Network and Switch Management” provides guidelines for managing and maintaining the ATM Switch/Control.

Chapter 7, “Troubleshooting” describes how to diagnose and solve problems associated with the installation and operation of the 6416SW module, 6416SW console, and ATM subsystem in the ONcore hub.

Appendix A, “Technical Specifications” describes the technical specifications for the 6416SW module.

Appendix B, “RS-232 Cable and Modem Requirements” describes the RS-232 cable requirements and pin assignments for connecting a console or modem to the 6416SW module's RS-232 Console port. It also describes how to configure a modem connection.

Appendix C, “Error and Information Codes” describes the return codes displayed for the Q.2931 protocol and Maintenance mode.

Appendix D, “Configuring AIX for Download and Upload Operations”

describes how to configure a server running AIX* for TFTP file transfers with ATM ONcore hubs.

xviii ONcore ATM Switch/Control Module: Installation and User's Guide

Appendix E, “ONcore ATM Address Formats” describes the ATM addressing formats.

Appendix F, “Technical Support” describes the support services provided by 3Com Corporation.

How to Use This Guide xix

Prerequisite Knowledge

To understand the information presented in this guide you should be familiar with:

Features and characteristics of the 3Com ONcore Switching hub, as

described in

Guide

Principles of asynchronous transfer mode (ATM) technology ATM Forum UNI Specifications V3.0 and V3.1. ATM Forum LAN Emulation Specifications V1.0.

3Com ONcore Switching Hub Installation and Operation

, 17-00362.

xx ONcore ATM Switch/Control Module: Installation and User's Guide

Conventions Used in This Guide

The following text conventions are used in this guide:

Text Convention

Bold Text emphasis Selective backpressure temporarily

Italics

Meaning Example

stops one virtual connection. Global backpressure temporarily

stops an ATM link. Special term This is known as a Document titles Refer to the

ATM User-Network

hot swap

Interface Specification - Version 3.0

for more information.

Monospace Command syntax

(parameters and variables)

User input (including carriage return)

System messages and screen displays

SET PORT slot.port ENABLE

To display detailed information,

enter the following command:

show port 4.2 verbose [ENTER]

Port display for ONcore ATM 155

Mbps Module:

Port Type Mode Status

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

4. 2 NNI enabled UP-OKAY

How to Use This Guide xxi

Related Documents

This section provides information on supporting documentation, including: 3Com Documents Reference Documents

3Com Documents

The following documents provide additional information on 3Com products:

ONcore Switching Hub Installation and Operation Guide

provides information on the installation, operation, and configuration of the ONcore Switching Hub. This guide also describes the principal features of the ONcore Fault-Tolerant Controller Module.

ONcore Distributed Management Module User's Guide

information on the ONcore Distributed Management Module's operation, installation, and configuration. This guide also describes the software commands associated with the Distributed Management Module.

Distributed Management Module Commands Guide

each management command by providing detailed information on the command's format, use, and description.

ONcore Switching Hub/Cellplex 4000 Workgroup Switch ATM Command Reference Guide

detailed information on the command's format, use, and description.

For a complete list of 3Com documents, contact your 3Com representative.

17-00866 - describes each ATM command by providing

17-00362 -

17-00370 - provides

17-00372 - describes

xxii ONcore ATM Switch/Control Module: Installation and User's Guide

Reference Documents

The following documents supply related background information:

Case, J., Fedor, M., Scoffstall, M., and J. Davin,

Management Protocol,

Performance Systems International and the MIT Laboratory for Computer Science, May 1990.

Rose, M., and K. McCloghrie,

Information for TCP/IP-based internets,

International and Hughes LAN Systems, May 1990.

RFC 1157, University of Tennessee at Knoxville,

Structure and Identification of Management

RFC 1155, Performance Systems

The Simple Network

How to Use This Guide xxiii

Service and Support

3Com Corporation is committed to providing our customers with a full range of support services to provide maximum network uptime.

This section describes: Warranty Information

Software Subscription Service

Support

Warranty Information

3Com products are covered under a limited factory warranty. This warrranty covers defects in the hardware, software, or firmware. Hardware and firmware is covered for one year and software is covered for 45 days.

Software Subscription Service

Software Subscription Service (SSS) is available from 3Com Corporation at additional cost. SSS provides you with all software upgrades for a one year period for that product. For example, if you purchase version 1.0 of a product and you purchase SSS at that time, you will be entitled to all software releases for that product for one year. This includes all major releases and all minor releases.

To order SSS, call 3Com Corporation in the U.S. at 800-228-6840 or 508-490-5858 and ask for the SSS Coordinator. You can also send a FAX to the SSS coordinator at 508-460-6195. When signing up for SSS, be prepared to provide the following information:

Ship to address Bill to address Product serial numbers Current software version Original purchase order

xxiv ONcore ATM Switch/Control Module: Installation and User's Guide

Note: You can buy SSS for less that a full year period so that all software products have the same renewal date for your convenience.

Support

3Com Corporation supports product-related questions through the Customer Support Organization (CSO). CSO is available Monday through Friday from 8:30 am to 8:00 pm, Eastern Time. Technical Support Engineers are available to help diagnose and solve customer problems. Ensure that you have your product serial number and software revision level (if applicable) when you call CSO.

If you have a critical problem with your 3Com product and need to return it, call the Customer Support Organization for a Return Authorization Number at 800-228-6840 or 508-490-5858.

3Com User Group

The 3Com User Group is a network of global users working with 3Com toward the common goal of achieving world-class networking solutions.

To join the 3Com User Group or to receive user group information, call one of the following:

Your local 3Com office

(800) 228-9930

(508) 460-8900 extension 3322

3Com Technical Publications

If you have comments or questions on 3Com Technical Publications documents, please complete the reader comment form at the back of this manual or contact the Technical Publications group at one of the following:

On the Internet: writers@msmailer.3com.com

By fax: (508) 229-1551

How to Use This Guide xxv

xxvi ONcore ATM Switch/Control Module: Installation and User's Guide

Chapter 1. Introduction to ATM

This chapter presents an overview of the main principles and modes of operation of asynchronous transfer mode (ATM) technology on which the 3Com ONcore ATM Switch/Control (6416SW) module is based. It also describes how ATM is implemented in the 3Com ONcore Switching Hub and shows how an ONcore-based ATM campus network can be built by interconnecting ATM subsystems.

1-1

3Com ONcore ATM Subsystem

By interconnecting 3Com ONcore Switching hubs, you can build a private campus network that uses ATM to provide:

The backbone structure, with possible extensions to the WAN New LAN capability for attaching workstations and servers with dedicated bandwidth

and isochronous transmission.

ATM is implemented in the ONcore hub to permit existing LANs (such as Token-Ring) to coexist with the new ATM technology.

In the 3Com ONcore hub, the ATM subsystem consists of the following components:

An ATM backplane for interconnecting active ATM modules installed in any of the

slots in the hub

A 2-slot ATM Switch/Contol Module (6416SW) module (two may be installed in

17-slot models)

ATM media (for example, 100 Mbps Concentration) modules.

1-2 ONcore ATM Switch/Control Module: Installation and User's Guide

ATM Backplane

All data transmitted between modules in the ATM subsystem passes through the ATM backplane. Data is switched between ATM media modules in the ATM subsystem by a 6416SW module. 6416SW modules are installed in slot positions 9 and 10 in the ATM backplane of 10-slot models, and slot positions 9 and 10 and/or 11 and 12 in the ATM backplane of 17-slot models. These positions are shown in Figure 1-1.

Fan Area

ATM Backplane

ShuntBus

Ring-Bus Connectors

Media Backplane

TriChannel

TriChannel Connectors

112233445566778899101011111212131314141515161617

Power Module

Controller 2 Controller 1

ac Inlets

Figure 1-1. ATM Backplane in the 17-slot 3Com ONcore Hub

Two 6416SW modules may be installed in the 17-slot models. This allows for 6416SW redundancy (see page “ATM Switch/Control Redundancy” on page 1-13).

1-3

The major difference between the ATM backplane and other ONcore hub LAN backplanes is that each ATM media module has a dedicated set of connections to the 6416SW module. This set of dedicated connections constitutes a wiring star topology in which ATM media modules are at the tips of the star and the 6416SW module is at the center. The wiring topology used in the ATM backplane is shown in Figure 1-2.

Slot Positions for

Fan Area

1 2 3 4 5 6 7 8 9 10 1112 13 14 15 16 17

6416SW Modules: 9 to 10 and 11 to 12

Slot Positions for ATM Media Modules: 1 to 8 and 12 to 17

ATM Bus Linking 6416SW Modules

6416SW = ATM Switch/Control

Figure 1-2. Wiring Star Topology in ATM Backplane (17-slot model)

1-4 ONcore ATM Switch/Control Module: Installation and User's Guide

The main characteristics of the ATM backplane are as follows: Modular structure

Full floating ATM media modules Support of two 6416SW modules for reliability and redundancy (in 17-slot models) Full coexistence with existing legacy LAN modules.

ATM media modules can be hot-swapped into any open slot. Also, you can remove an ATM module and re-insert it into another slot without disturbing the operation of other ATM modules and without causing a failure in ATM connections in the hub.

You can install an ATM media module in any one of slots 1 to 8 in a 10-slot model, and of slots 1 to 8 and 12 to 17 in a 17-slot model. Slots 9, 10, and 11 (in 17-slot models) are reserved for 6416SW modules. After installing the module, you must configure it for operation by entering a series of commands from the 6416SW local console or from a TELNET session. The commands are detailed in the

Hub/CELLplex 4000 Workgroup Switch, ATM Command Reference Guide

SA33-0385 (hereafter referred to as the

Command Reference Guide

ONcore Switching Hub/CELLplex 4000 ATM

3Com ONcore Switching

17-00866,

1-5

ATM Switch/Control Module

The ATM Switch/Contol Module (6416SW) module used in the ONcore hub consists of two cards packaged into a double-slot module:

A base card (ATM Switch fabric) that switches cells from one ATM port to another

ATM port or to another output link on the same module. ATM cell switching is carried out by means of the Switch integrated circuit, a

technology used by the ONcore switch. This single chip is a non-blocking 16-by-16 times 256 Mbps 8-bit parallel switch.

The Control Point card houses a processor where the Control program resides.

The 3Com ONcore ATM subsystem (as all ATM switching devices) requires a control program to perform the functions associated with the establishment and management of ATM circuits. These functions are integrated into the switching element of each 6416SW module. This allows the ONcore ATM subsystem to use a distributed control system with the following advantages:

Each ATM module benefits from the fault-tolerant design of the 3Com ONcore

chassis.

Continued ATM network operation is ensured in case of a failure at a single point in

the network.

1-6 ONcore ATM Switch/Control Module: Installation and User's Guide

The 3Com ONcore Switch imbedded Control Point provides a complete set of functions to control an ATM campus network and to interconnect local ATM networks over ATM wide area networks.

The Control Point supports an extensive set of ATM connections, including:

Switched (SVC) and permanent (PVC) Point-to-point and point-to-multipoint Reserved Bandwidth (RB) and Available Bit Rate (ABR)

Note: The Available Bit Rate service will be available in future releases of the 6416SW module.

Table 1-1. ATM Connections Supported in ONcore Hubs

Type of Virtual Connection

Virtual Path Connection (VP)

Virtual Channel Connection (VC)

ATM control functions are fully distributed instead of being centralized. This means that all nodes participate as peers in the control algorithms. Due to the distribution of control functions, ONcore ATM networks provide for availability, scalability, and growth.

Connection Type

Permanent Reserved

Switched Reserved

Permanent Reserved

Connection Class Connection Mode

Bandwidth and Available Bit Rate

Point-to-point

Point-to-point and point-to-multipoint

Point-to-point

1-7

Each 3Com ONcore Switch/Control provides the following functions: Control plane:

– Support of ATM signaling (SVCs) according to ATM Forum V3.0 and V3.1

specifications.

– Switch-to-switch interface (SSI) based on an extension of the ATM Forum UNI

V3.0 as stated in the ATM Forum P-NNI framework

– Topology services and route computation based on TRS, with automatic bypass

of failed nodes and links only for SSI connections (TRS is an extension of OSPF, Open Shortest Path First.)

– Interconnection of local ATM networks over an ATM WAN that provides a

permanent virtual path, allowing switched connections to be set up between end systems on both sides of the WAN (VP tunneling)

– Internal SVC APIs to support node management and services over switched

ATM connections

– Support of permanent virtual path (VP) and permanent virtual channel (VC)

point-to-point connections

– Support of IP over ATM (RFC 1577) for node management and services

(Classical IP); PING message: 916 bytes maximum.

– Support of 802.3 LAN Emulation Client for node management and services

(LAN emulation). PING and TELNET messages: maximum length depends on the maximum SDU size supported on the corresponding emulated LAN. See Table 1-2 on page 1-15

1-8 ONcore ATM Switch/Control Module: Installation and User's Guide

Management plane:

– Full SNMP support (get, getnext, set, and traps) – MIB-II support – IETF AToMIB

– Full Interim Local Management Interface (ILMI) support at UNI and from the

network management station

– OSPF MIB support for managing topology and route computation – 3Com extension

— Hub-specific: switch, modules and ports — Enhanced PVC management (automatic route computation and recovery) — Signalling (Q.2931 and SAAL) configurations and statistics

— ATM statistics

– Services for local and remote administration.

User Plane (hardware):

– ATM layer (switching)

– Support of Reserved Bandwidth (RB) connection.

1-9

The SNMP ATM agent is a function of the Control program in the 6416SW module and implements the ATM MIB defined in the V3.0 UNI Specification of the ATM Forum.

The AToMIB is defined by the IETF and by the 3Com extensions. It can be driven by SNMP managers, such as IBM NetView for AIX . The 3Com ATM management application, Transcend ONcore ATM Campus Manager, can be used by a LAN administrator to better tune the system.

Both PVCs and SVCs are supported. The signaling is upwardly compatible with the ATM Forum V3.0 and V3.1 UNI. Control messages are encapsulated in the SAAL Adaptation Layer.

The ILMI (ATM Forum V3.0) is fully supported. End-systems can register their local address to the ONcore hub and receive notification of their network address. ILMI messages are SNMP-formatted and conveyed using the AAL5 Adaptation layer.

1-10 ONcore ATM Switch/Control Module: Installation and User's Guide

ATM Subsystem Traffic Management

High-speed ATM networks support a variety of applications with different traffic and quality of service (QOS) requirements. For example, multimedia and time critical data applications require guaranteed levels of delay and throughput, while other applications can tolerate variations in delay and throughput (LAN traffic). This diversity requires different congestion management methods.

The 3Com ONcore ATM subsystem supports the ATM Reserved Bandwidth (RB) service type of traffic.

In the Reserved Bandwidth (RB) service, an application needs to establish a traffic contract with the network before transmitting data. The traffic contract consists of a specified QOS class and a set of traffic descriptors. Through resource allocation, the network either provides the desired QOS for the ATM connection or refuses the call. For this method, the source must be accurately modelled and able to precisely describe its traffic pattern. The allocated bandwidth is usually less than the peak rate in order to benefit from statistical multiplexing gains which may cause congestion. A source policing scheme ensures that the source conforms itself to the contract by means of a "leaky bucket" rate control.

The use of selective and global backpressure for traffic management in the ATM subsystem gives the 3Com ONcore ATM network an added value. Selective backpressure temporarily stops one virtual connection. Global backpressure temporarily stops an ATM link.

1-11

ATM Subsystem Chassis Management

Management of the ATM subsystem can be achieved in two ways:

Via a Distributed Management Module (DMM) installed in the ONcore hub.

Via the 6416SW module, which contains a subset of DMM, when the ONcore hub is only running ATM. (Check the Release Notes for the level of 6416SW code required).

Note: If a DMM module is present, or hot-inserted, in the hub, the DMM module will assume chassis management, and 6416SW commands entered will not be effected. The required commands, in this case, should be entered from a DMM console, and not the local console.

Power management of the hub is provided by the SET POWER MODE and SHOW POWER commands. The power mode can be set so that if an additional power supply is available, the supply is kept in reserve, to be used in the event of failure. Power management information can be displayed to show the amount of power available, and the amount of power consumed by the hub. In addition, the power budget, power modes, and power information can be displayed for individual slots.

A complete inventory of the hub's contents, including fans and power supplies can be displayed via the SHOW HUB command.

The SHOW INVENTORY command allows you to display inventory information about the hub, including all modules, submodules, and controller module.

For more information, see the

Reference Guide

ONcore Switching Hub/CELLplex 4000 ATM Command

1-12 ONcore ATM Switch/Control Module: Installation and User's Guide

ATM Switch/Control Redundancy

By installing a second 6416SW in a 17-slot hub, a backup to the active 6416SW is provided (check the Release Notes for the level of 6416SW and the level of code required). If the active 6416SW fails, the standby will take over control. The active 6416SW continually updates the tables in the standby 6416SW to ensure that the backup configuration is current, and to reduce the impact should a switch to the standby be required. The active 6416SW checks every one second to determine if the standby 6416SW is present and up-to-date. The date and time are also updated to ensure network time consistency in case of switch-over.

The active 6416SW also periodically requests that the standby 6416SW perform diagnostics to ensure that it is capable of assuming control if required.

Which 6416SW is to be active can be defined by the operator in both Maintenance and Administrator modes, via the SET ROLE or SET DEVICE ROLE command (see the

ONcore Switching Hub/CELLplex 4000 ATM Command Reference Guide

This choice is considered at next reset when electing the active 6416SW. Maintenance mode can be entered for the backup 6416SW, but this mode will be ended should the active 6416SW fail or enter Maintenance mode.

for details).

Note: The standby 6416SW does not support Telnet. There are two console modes available, basic dialog mode and maintenance mode.

1-13

Benefits of Using ATM in the ONcore Hub

The use of ATM in the ONcore hub offers the following benefits:

Use of ATM in local and wide area networks, and in both private and public networks

ATM support for multimedia applications and mixed traffic, such as voice, video, and data

Extension of current application solutions by providing bandwidth on demand and allowing applications to share bandwidth

Support for current and future high-bandwidth applications and protocols

Low transfer delay and support for both non-realtime and realtime applications by providing large peak bandwidth

Coexistence of ATM with the existing LAN backplane allowing for the combined use of shared media LANs and ATM

Integration of ATM into the ONcore hub management functions

Distributed switching across ONcore hubs for greater network reliability

Platform for providing ATM to the desktop and high media concentration

Independent of physical interface type

Simplified networking and architecture.

1-14 ONcore ATM Switch/Control Module: Installation and User's Guide

LAN Emulation Client (LEC)

The 6416SW contains an integrated ‘lite’ LEC that provides basic LAN emulation client functions for use by an SNMP agent or for Internet FTP functions. Such functions include Netview, TELNET, and TFTP. The LEC implementation is fully ATM Forum compliant.

The maximum length of PING and TELNET messages depends on the maximum SDU size supported on the corresponding emulated LAN. Table 1-2 lists the correspondence (in bytes):

Table 1-2. Maximum PING and TELNET Message Lengths

802.3 ELAN max SDU PING/TELNET maximum length

1516 1492 4544 4520 9234 9210 18190 18166

If a connection is lost between a LEC and a LAN emulation server (LES), the LEC will attempt to reconnect 5 times, at intervals of 5 seconds. If the connection is not re-established, the LEC will continue attempts to reconnect, at intervals of one minute.

1-15

1-16 ONcore ATM Switch/Control Module: Installation and User's Guide

Chapter 2. Installation

This chapter describes how to install the 6416SW module. Before you unpack the module, please follow the precautions in “Before You Start.”

Before You Start

Take the following precautions before unpacking the 6416SW module:

Do not remove the 6416SW module from its anti-static shielding bag until you are ready to insert it into the ONcore hub. This avoids the possibility of having electrostatic discharge damage static-sensitive devices in the 6416SW cards.

Always use a foot strap and grounded mat or wear a grounded static discharge wrist strap whenever you inspect or install the 6416SW module. Or else, touch a grounded rack or another source of ground before handling the 6416SW module.

Verify that the 6416SW module is the correct feature by matching the part number listed on the side of the shipping carton to the part number you ordered.

2-1

Unpacking the Module

To unpack the 6416SW module, follow these steps:

1. Remove the 6416SW module from the shipping carton.

2. Remove the 6416SW module from the anti-static bag and inspect it for damage. Always handle the module by the faceplate being careful not to touch the internal components.

If the module appears damaged, put it back in the anti-static bag, and put the bag back into the shipping carton. Then contact your local 3Com dealer or 3Com representative.

3Com suggests that you keep the shipping carton and the anti-static shielding bag which your 6416SW module was delivered in, in case you later want to repackage the module for storage or shipment.

3Com also suggests that you record the serial number of your 6416SW module and other information about the modules in your ONcore hub in the Hub Planning Chart provided in your ONcore Switching Hub Reference Library.

2-2 ONcore ATM Switch/Control Module: Installation and User's Guide

Installing the 6416SW Module

To install a 6416SW module in the ONcore hub, follow these steps:

1. Install the ONcore hub in its rack or on a desktop by following the instructions in the

3Com ONcore Hub Installation Guide

2. Insert the 6416SW module into slots 9 and 10 (or slots 11 and 12 in A17 models) of the hub by matching the top and bottom board guides as you slide the module cleanly into place (by pressing evenly on the top and bottom of the faceplate). Do not attempt to push the module all the way into the hub until you have verified that the top and bottom module ejectors are OPEN (see Figure 2-2 on page 2-4.)

3. Make sure that the module is plugged into the connectors on the ATM backplane.

(17-00362).

1234567

Slots

ACTIVE

ERROR

RUNNING

STBY

MAINT

RESET

ATM

RESET

RS-232 CONSOLE

RS-232 AUXILIARY

WRONG SLOT

A-SCPSW

8910

ACTIVITY

STAT

RESET

MODULE RESET

PO RT1

PO RT2

PO RT3

PO RT4

11121314

1516

ACTIVITY

STAT

RESET

MODULE RESET

PO RT1

PO RT2

PO RT3

PO RT4

Figure 2-1. Installing the 6416SW Module in an ONcore Hub

2-3

4. Close the top and bottom ejectors simultaneously.

Figure 2-2. ONcore Module Ejectors

2-4 ONcore ATM Switch/Control Module: Installation and User's Guide

5. Fasten the spring-loaded screws on the front panel of the module to the hub using your fingers. Do not over-tighten.

6. (optional) Press the LED Test button on the Controller module to verify that all LEDs are functional.

7. If you want to use a local console to configure (out-of-band) the ATM subsystem, you must attach an ASCII-type terminal to the RS-232 Console port on the 6416SW module. The connection can either be local or via modems.

If you use the modem cables that are delivered with the ONcore hub, you must also use the null modem adapter supplied with the 6416SW module.

Verify that the console and modems (if used) meet the factory defaults of the 6416SW module. If they are not compatible with the factory defaults, you will not be able to communicate with the module. The default 6416SW settings are:

9600 baud rate 8 data bits

No parity

1 stop bit.

See Chapter 4, “Setting-Up and Using a Configuration Console” on page 4-1 for more information.

8. Attach one end of an RS-232 cable to the RS-232 Console port, the topmost RS-232 port on the front panel of the 6416SW module. Loop the cable through the hub cable tray (if installed) and attach the other end to the RS-232 serial port connector on the console or personal computer.

Note: The RS-232 cable can be a maximum of 200 feet (61 meters) in length. There are several RS-232 cable configurations available. Refer to Appendix B, “RS-232 Cable and Modem Requirements” on page B-1 for more information on the exact RS-232 cable that you need.

2-5

ACTIVITY

STAT

RESET

MODULE RESET

PORT 1

PORT 2

PORT 3

PORT 4

RS-232 Console port

ACTIVITY

STAT

RESET

MODULE RESET

PORT 1

PORT 2

PORT 3

PORT 4

Figure 2-3. Attaching a Terminal to the 6416SW RS-232 Console Port

9. Attach cables to the ATM media modules and ATM user devices you want to use. Then enter 6416SW commands from the console (as described in Chapter 5, “Configuring the ATM Switch/Control Module” on page 5-1) to configure the ATM subsystem.

10. Enter the SAVE ALL command from the console once you have configured all ATM media modules. The 6416SW module saves the configuration information in nonvolatile memory.

2-6 ONcore ATM Switch/Control Module: Installation and User's Guide

Verifying Normal 6416SW Operation

After installing the 6416SW module, you can verify that it is operating properly by checking the status of the LEDs and the message displayed on the console screen. The position of the LEDs is shown in Figure 2-4 on page 2-9.

The RUNNING LED on the module should light (yellow). The ACTIVE LED should light (yellow) if the 6416SW module is managing ATM

media modules.

The WRONG SLOT LED should not light. If the module is installed properly and if the RS-232 connection is made, the

following message should display on the console screen when you press Enter:

Now you can enter 6416SW commands from the local console to set up your system defaults and configure ATM media modules as explained in Chapter 5, “Configuring the ATM Switch/Control Module” on page 5-1. If you have problems while configuring your ATM subsystem, refer to Chapter 7, “Troubleshooting” on page 7-1.

How to perform wrap tests on ATM ports is described in the

Hub/CELLplex 4000 ATM Command Reference Guide

The next section describes the front panel of the 6416SW module and the meaning of each LED.

ONcore Switching

2-7

Front Panel

The front panel of the 6416SW module contains:

Seven LEDs that show the operating state of the module 9-pin RS-232 Console port 9-pin RS-232 Auxiliary port (reserved for 3Com service personnel) ATM Reset button that resets all ATM modules (6416SW and ATM media) in the

ONcore hub.

The position of these components on the front panel is shown in Figure 2-4 on page 2-9

2-8 ONcore ATM Switch/Control Module: Installation and User's Guide

Active LED

Standby LED

Maintenance LED

Reset LED

ATM Reset button (resets all ATM modules and ATM traffic)

RESET

ACTIVE

MAINT

RESET

Running LED

ERROR

RUNNING

STBY

ATM

RS-232

CONSOLE

Error LED

RS-232 Console Port

RS-232

AUXILIARY

RS-232 Auxiliary Port

Wrong Slot LED

WRONG SLOT

Figure 2-4. Front Panel of 6416SW Module

2-9

Meaning of the LEDs

Table 2-1 shows the meaning of each LED on the front panel of the 6416SW module.

Table 2-1 (Page 1 of 2). Meaning of the 6416SW LEDs

LED Name Color State Meaning

Active Yellow OFF 6416SW module is not able to

control ATM traffic and ATM media modules.

ON 6416SW module is able to

control ATM traffic and ATM media modules.

Standby (STBY)

Running Yellow OFF 6416SW software is not running.

Error Red OFF 6416SW module is functioning

Yellow OFF Either a second 6416SW module

is not installed or, if a second 6416SW is installed, it is not active.

ON The second 6416SW module is

installed and active.

The Error LED or the Maintenance LED lights up.

ON 6416SW software is started and

running properly.

properly.

ON 6416SW module is not

operational because of an error. See Chapter 7, “Troubleshooting” on page 7-1.

2-10 ONcore ATM Switch/Control Module: Installation and User's Guide

Table 2-1 (Page 2 of 2). Meaning of the 6416SW LEDs

LED Name Color State Meaning

Maintenance (MAINT)

Reset Yellow OFF 6416SW module is functioning

Wrong Slot Yellow OFF Normal operation.

Yellow OFF 6416SW module is functioning

properly.

ON Maintenance mode is active.

properly.

ON 6416SW and ATM media

modules in hub are being reset.

ON 6416SW module is not installed

in the correct slots.

2-11

ATM Reset Button

The ATM Reset button resets the 6416SW and all ATM media modules in the ONcore hub. All data traffic and connections in the ATM subsystem are stopped.

Press this button when instructed after you correct an error condition. Before pressing it, be sure to save any configuration settings entered in the current session with the SAVE command. When you press the ATM Reset button, all unsaved settings will be lost.

The button is recessed on the front panel to prevent it from being accidentally pressed. To press it, use a pen or a small screwdriver to hold the button down.

Pressing the ATM Reset button has the same effect as entering the RESET ATM_SUBSYSTEM FORCE command from the 6416SW console.

2-12 ONcore ATM Switch/Control Module: Installation and User's Guide

RS-232 Console Port

The 9-pin RS-232 Console port (the topmost RS-232 port on the front panel) is a DTE male connector (DB-9) to which a console or modem is connected in order to:

Initialize the 6416SW module at installation. Enter 6416SW network management commands (described in the

Switching Hub/CELLplex 4000 ATM Command Reference Guide

Download new software versions.

Table 2-2. RS-232 Console Port Pin Assignments (DB9)

Pin Number Signal Name

1 Carrier Detect (CD) 2 Receive Data (RX) 3 Transmit Data (TX) 4 Data Terminal Ready (DTR) 5 Signal Ground (GND) 6 Data Set Ready (DSR) 7 Request to Send (RTS) 8 Clear to Send (CTS)

ONcore

9 No connection

An RTS signal is not continuously sent by the 6416SW module. If you attach a terminal (such as an IBM 3151 or 3164) you should configure it with IPRTS (Induced Permanent RTS) for Line Control.

2-13

RS-232 Auxiliary Port

The 9-pin RS-232 Auxiliary serial port (the bottommost RS-232 port on the front panel) is also a DTE male connector (DB-9).

The RS-232 Auxiliary port is reserved for 3Com service engineers. No device should be connected to it during normal hub operation.

Table 2-3. RS-232 Auxiliary Port Pin Assignments

Pin Number Signal Name

1 No connection 2 Receive Data (RX) 3 Transmit Data (TX) 4 No connection 5 Signal Ground (GND) 6 No connection 7 Request to Send (RTS) 8 Clear to Send (CTS) 9 No connection

2-14 ONcore ATM Switch/Control Module: Installation and User's Guide

Chapter 3. ATM Addressing

This chapter describes:

The components of an ATM Campus Network Guidelines for defining an ATM Address for the ATM Switch/Control How to set up trunk connections within and between subnetworks How to use Permanent Virtual Connections (PVCs).

ATM Campus Networks

The purpose of an ATM network is to set up connections between ATM user devices, the two endpoints of a connection.

3Com ATM subsystems can be interconnected in order to build a local, privately owned and administered ATM network called an ATM Campus Network.

3-1

Figure 3-1. Components of an ATM Campus Network

3-2 ONcore ATM Switch/Control Module: Installation and User's Guide

Network Components

The various parts of the ATM address form a hierarchy of network components, as shown in Figure 3-2.

Figure 3-2. ATM Address Hierarchy

For a full description of the ATM address formats supported by the 6416SW, see Appendix E, “ONcore ATM Address Formats” on page E-1.

The terms used to describe the components of an ATM Campus Network are defined here:

ATM Campus Network

One or more ATM subnetworks interconnected using NNI interfaces.

This set of subnetworks is controlled by one administrative domain and a single private owner using one network access protocol (UNI).

An ATM Campus Network is identified by:

The first 9 bytes of the unique network prefix.

3-3

ATM Subnetwork One or more ATM clusters interconnected using NNI interfaces.

An ATM subnetwork is identified by:

The first 9 bytes of the network prefix, which are the same for

all subnetworks in a Campus Network, plus

A 2-byte routing domain number (RDN), which is unique within

the ATM Campus Network.

ATM Cluster One or more ATM subsystems interconnected using SSI interfaces.

An ATM Cluster is identified by:

The first 11 bytes of the network prefix, which are the same for

all clusters in an ATM subnetwork, plus

A 1-byte ATM Cluster Number (ACN), unique within the ATM

subnetwork, which ranges from 0 to 255.

ATM Subsystem The components of the ATM subsystem in the hub include:

Integrated ATM Switch/Control module functions Devices connected to the ATM ports ATM media modules installed ATM interfaces: user-to-network (UNI), switch-to-switch (SSI),

network-to-network (NNI).

An ATM Subsystem is identified by:

The first 12 bytes of the network prefix, which are the same for

all subsystems in a cluster, plus

A 1-byte Hub Number (HN), unique within the ATM Cluster,

which ranges from 0 to 255.

ATM User Device An end system that encapsulates data into ATM cells and forwards

them to the ATM subsystem across a UNI interface. Examples of ATM user devices are:

Servers and workstations equipped with ATM adapters ATM concentrators or workstations equipped with ATM adapters Routers with ATM adapters LAN ATM bridges.

3-4 ONcore ATM Switch/Control Module: Installation and User's Guide

An ATM User Device is identified by:

The first 13 bytes of the network prefix, which are the same for

all user devices attached to an ATM subsystem, plus

A 6-byte End System Identifier (ESI), unique within the ATM

Subsystem, plus

A 1-byte Selector field that may be used by the user device.

The 6416SW passes the network prefix of an ATM address to attached end systems using the Interim Local Management Interface (ILMI) protocol.

3-5

Network Interfaces

ATM standards define three protocols used across the interfaces connecting the components of an ATM campus network:

UNI Defines the interface between an ATM User Device (such as a terminal,

router, bridge, server, workstation, or concentrator equipped with an ATM adapter) and the ATM network. The ATM subsystem supports the private UNI defined by the ATM Forum UNI Specification V3.1.

SSI Defines the interface between two ATM switches in the same ATM Cluster.

The SSI fully supports networking functions without the need of operator intervention, such as routing, node failure and node recovery, backup, and topology management by the Topology Routing Service (TRS) program.

You can define multiple SSI connections between two ATM switches. The SSI has been developed from the Public-NNI for use in 3Com ATM subnetworks.

NNI Defines the interface between two ATM switches belonging to different ATM

Clusters in the same subnetwork or in different subnetworks. Operator intervention is required in order to manage networking functions

such as routing, backup, topology changes, and so on. You can define only one NNI connection between two ATM switches.

3-6 ONcore ATM Switch/Control Module: Installation and User's Guide

Defining the ATM Address of the 6416SW

A default ATM address is provided with the 6416SW. You can continue to use this default address only if you use your 6416SW as a stand-alone ATM switch.

If you want to connect the 6416SW to other ATM subsystems, the ATM address must be defined as follows:

AFI-RDN The first (leftmost) 11 bytes of the Network Prefix is the address of the ATM

subnetwork to which this 6416SW belongs. If the ATM campus network is connected to a public carrier, this address is

assigned by the appropriate administrative authority.

ACN If the ATM subnetwork contains multiple ATM clusters, this byte specifies the

number of the cluster to which this 6416SW belongs.

HN If the ATM cluster contains multiple ATM subsystems, this byte specifies the

number of this 6416SW in the cluster.

This address is assigned to the 6416SW using the SET DEVICE ATM_ADDRESS command, which automatically saves the ATM address and resets the ATM subsystem.

3-7

Setting-Up ATM Trunk Connections

To configure a trunk between two ATM subnetworks or two ATM clusters in the same subnetwork over a virtual path (VP) service provider, you must configure a logical link between a pair of ATM ports. The ATM ports must both use a network-to-network (NNI) interface and be on the boundary hub of each subnetwork or cluster.

Figure 3-3 shows an example of logical links between pairs of ATM clusters from a boundary hub in each cluster.

Figure 3-3. ATM Logical Links Used to Connect ATM Clusters

3-8 ONcore ATM Switch/Control Module: Installation and User's Guide

You can configure multiple logical links over the same physical port. However, you can only configure one logical link (using one pair of ATM ports) for each ATM cluster-to-cluster or subnetwork-to-subnetwork connection.

Using Static Routes

In an ONcore/CELLplex 4000 ATM network, you can only set a logical link to a cluster number (ACN) that is defined within your own ATM subnetwork. In order to set up a logical link with a remote cluster outside your own subnetwork, you must use the SET STATIC_ROUTE command to assign an ACN to the network prefix of the boundary hub of each remote cluster to which you want to link. The SET LOGICAL_LINK command then will be able to set up a connection to this logical hub using its assigned ACN.

Trunks Within a Single Cluster/Subnetwork

To define a logical link between switches within the same cluster or subnetwork, use the SET LOGICAL_LINK command to set the following parameters for each port in each switch:

Virtual Path Identifier (VPI) number ATM cluster number (ACN) for the remote switch Bandwidth available on the virtual path Signalling role for Q.2931 protocol.

3-9

Trunks Between Subnetworks

In order to define a logical link between switches in different subnetworks, you must also use the SET STATIC_ROUTE command to associate the address of the boundary hub in the remote cluster with a locally defined ACN.

The SET LOGICAL_LINK command then uses this ACN to establish the logical link with the remote cluster.

3-10 ONcore ATM Switch/Control Module: Installation and User's Guide

Example: Configuring a Connection Between User Devices

When configuring a connection between two ATM user devices attached to different subnetworks (for example, between Workstation D and Workstation E in Figure 3-4 on page 3-12), you must:

Configure the route between the clusters in the first subnetwork; for example,

between Clusters A and B in subnetwork Y.

Configure the route between the clusters in both subnetworks; for example, from

Cluster B in subnetwork Y to Cluster C in subnetwork X.

To configure the route from Workstation D to Workstation E, you would start from hub F, the entry point to Cluster A in subnetwork Y:

1. From hub F, enter the SET STATIC_ROUTE command with the ACN for Cluster C.

2. From hub G (boundary hub), enter the SET LOGICAL_LINK command with the ACN for Cluster C.

3. From hub H (the entry point in Cluster B), enter the SET STATIC_ROUTE command with the ACN for Cluster C.

4. From hub H (which is also a boundary hub), enter the SET LOGICAL_LINK command with the ACN for Cluster C.

The ATM address of Workstation E is known in Cluster C by the updates received at each ATM switch by the Topology Routing Service (TRS).

To configure the route for communication in the opposite direction, from Workstation E to Workstation D, you would start from Hub J, the entry point to Cluster C in subnetwork X:

1. From hub J, enter the SET STATIC_ROUTE command with the ACN for Cluster A.

2. From hub I (boundary hub), enter the SET LOGICAL_LINK command with the ACN for Cluster A.

3. From hub H (entry point), enter the SET STATIC_ROUTE command with the ACN for Cluster A.

3-11

4. From hub H (boundary hub), enter the SET LOGICAL_LINK command with the ACN for Cluster A.

The ATM address of Workstation D is known in Cluster A by the TRS updates.

Figure 3-4. Using Static Route Mappings to Connect User Devices

Across Subnetworks

3-12 ONcore ATM Switch/Control Module: Installation and User's Guide

Using Permanent Virtual Connections

Permanent virtual connections (PVCs) for virtual channel and virtual path connections are created via the SET PVC command. See the

ATM Command Reference Guide

for details.

ONcore Switching Hub/CELLplex 4000

3-13

3-14 ONcore ATM Switch/Control Module: Installation and User's Guide

Chapter 4. Setting-Up and Using a Configuration Console

This chapter describes:

How to enter commands and get help on the 6416SW configuration console How to set up the 6416SW configuration console in Normal (ASCII) mode How to set up the 6416SW configuration console via a SLIP protocol connection How to access the 6416SW from a remote console via TELNET How to reconfigure configuration console settings.

Overview

The commands for configuring the 6416SW are entered using a configuration console (ASCII terminal or workstation) connected to the console port. The console can communicate in one of two ways:

Normal (ASCII) mode

In normal mode, commands are entered directly from the configuration console.

See “Setting Up a Configuration Console in Normal (ASCII) Mode” on page 4-7 for instructions on connecting a configuration console to the 6416SW in Normal mode.

4-1

SLIP mode

In SLIP mode, commands are entered via a TELNET session between an IP workstation and the 6416SW.

If your workstation supports TFTP, it can also be used as a TFTP server to perform DOWNLOAD and UPLOAD operations between your workstation and the ONcore. (See “Uploading and Downloading Operations” on page 6-5.)

Note: If no activity takes place for a period of 20 minutes, the console is automatically returned to normal mode.

This method requires an initial connection in Normal mode to set up the IP addresses and change the port protocol.

See “Setting Up a Configuration Console in SLIP Mode” on page 4-8 for instructions on connecting a configuration console to the 6416SW in SLIP mode.

After the switch has been initially configured, it is also possible to configure and manage the switch:

From a remote TELNET sessions, as described in “TELNET Sessions Via a

Remote Switch” on page 4-12.

Using an SNMP management application, as described in Chapter 6, “Network and

Switch Management” on page 6-1.

4-2 ONcore ATM Switch/Control Module: Installation and User's Guide

Before You Start

The following section describes keystrokes and the command syntax to use to enter 6416SW commands from a configuration console. For a complete description of all 6416SW configuration commands, see the

Command Reference Guide

Entering 6416SW Commands

By entering commands at the prompt on the 6416SW configuration console, you can configure various functions of the 6416SW. The management prompt appears as follows:

ONcoreATM>

ONcore Switching Hub/CELLplex 4000 ATM

6416SW commands are not case-sensitive. The system interprets ABC (uppercase) the same as abc (lowercase).

The values you enter for certain command parameters are, however, case-sensitive and must be typed exactly as shown in the

Command Reference Guide

com_name parameter in two separate SET COMMUNITY commands, you will create two different community names.

. For example, if you enter RWTRAP and rwtrap for the

ONcore Switching Hub/CELLplex 4000 ATM

4-3

Keyboard Functions

When entering 6416SW commands the following keyboard functions are available:

Keystroke Function

BS or Backspace Moves the cursor one space backward and deletes the character. Enter Runs the command or prompts you to enter missing parameters. Space bar Types the complete 6416SW command. Ctrl + C Cancels the command that is currently running and returns you to

a blank command line.

Ctrl + R Retypes the last command you entered on the command line.

The last 10 commands you entered can be retyped in this way. Ctrl + L Types the currently edited command on the next line. ? Displays a list of available commands.

4-4 ONcore ATM Switch/Control Module: Installation and User's Guide

Getting Help

To get help on available 6416SW commands, type ? on the command line and press Enter. For example, to see what commands start with the word SAVE, you would enter:

ONcoreATM> save ? [ENTER]

The following response is displayed:

Possible completions: alert all community device lan_emul module_port static_route terminal tftp

If you logged on as the system administrator, you can enter ? to display a list of all active 6416SW commands. An example is shown here:

ONcoreATM> ? [ENTER]

clear download dump logout maintain ping reset revert save set swap telnet upload wrap

4-5

Command Completion

The 6416SW management command line accepts abbreviated command input with a facility called command completion. Command completion lets you enter a command and its parameters by typing the minimum number of characters to uniquely identify the command or a parameter.

For example, to enter the SAVE command, you only need to type SA and press the space bar:

ONcoreATM> sa

The system automatically fills in the rest of the command:

ONcoreATM> save

To enter a parameter, such as COMMUNITY, with the SAVE command, you can type the first few letters (for example, COMM) and press the space bar:

ONcoreATM> save comm

The rest of the parameter is automatically entered:

ONcoreATM> save community

If you enter an insufficient number of letters (for example, only S or C) for the system to determine the command or parameter (for example, Set, Show, Save and so on), the word is not completed and you are prompted to enter the rest of the command. The system also prompts you if you forget to enter a mandatory parameter.

4-6 ONcore ATM Switch/Control Module: Installation and User's Guide

Setting Up a Configuration Console in Normal (ASCII) Mode

The following procedure sets up the configuration console in Normal mode and logs you on as the system administrator with full access to all 6416SW commands:

1. Connect an ASCII-type terminal to the RS-232 console port on the front panel of the 6416SW.

2. In the terminal’s user guide, locate the procedure for setting parameters for baud rate, data bits, parity, and stop bits.

3. Configure these configuration console settings to the values used by the 6416SW so that the configuration console and the 6416SW can communicate. The factory-set default settings for the 6416SW are as follows:

Baud rate 9600 Data bits 8 Parity None Stop bits 1

4. Press Enter. The following message is displayed:

Password:

5. As no factory password is provided for administration first Logon, press Enter.

Welcome to system administrator service on ONcore. ONcoreATM>

You can now proceed to configure the 6416SW, as described in Chapter 5, “Configuring the ATM Switch/Control Module” on page 5-1.

4-7

Setting Up a Configuration Console in SLIP Mode

The procedure that follows sets up the configuration console in SLIP mode and logs you on as the system administrator with full access to all 6416SW commands.

Note: A typical workstation includes two serial ports (COM1, COM2):

One dedicated to an ASCII-terminal emulator, The other dedicated to an IP stack and supported via the SLIP protocol.

Both ports are needed for this procedure.

1. Connect your workstation to the RS-232 console port on the front panel of the 6416SW from the ‘ASCII-terminal’ serial port.

2. Configure the terminal in Normal mode and logon as administrator as described in “Setting Up a Configuration Console in Normal (ASCII) Mode” on page 4-7.

3. If a data transmission rate other than 9600 is required, use the SET TERMINAL BAUD command to configure a data transmission rate.

ONcoreATM> set terminal baud 192 [ENTER]

4. Set the local IP address (6416SW) and remote IP address (workstation) for the SLIP protocol using the SET TERMINAL SLIP_ADDRESSES command.

ONcoreATM> set terminal slip_addresses [ENTER] Enter local ip address : 9.1 .86.139 [ENTER] Enter remote ip address : 9.1 .86.138 [ENTER] ONcoreATM>

5. Switch the configuration console port operating mode to SLIP using the SET TERMINAL CONSOLE_PORT_PROTOCOL command.

ONcoreATM> set terminal console_port_protocol slip [ENTER]

6. Unplug the cable from the ‘ASCII-terminal’ serial port and plug it into the ‘IP-stack’ serial port of your workstation.

4-8 ONcore ATM Switch/Control Module: Installation and User's Guide

7. Configure the IP stack SLIP with the IP address of the 6416SW and verify the 6416SW-to-workstation connectivity by issuing a PING request.

C:\ping 9.1 .86.138 [ENTER]

8. Start a TELNET session to the 6416SW.

ONcoreATM> telnet 9.1 .86.139 [ENTER]

9. Logon as administrator. The Welcome screen is displayed:

Password:

Welcome to system administrator service on ONcore. ONcoreATM>

You can now proceed to configure the 6416SW, as described in Chapter 5, “Configuring the ATM Switch/Control Module” on page 5-1.

Returning to Normal Mode

To switch the configuration console port back to Normal mode, use the SET TERMINAL CONSOLE_PORT_PROTOCOL command.

ONcoreATM> set terminal console_port_protocol normal [ENTER]

Note: An 6416SW RESET restores the configuration console port to NORMAL operating mode.

4-9

SLIP Support

The SLIP function is supported on:

TCP/IP for AIX version 3.2.5 TCP/IP V2.1.2 for IBM DOS V7 (no TFTP support) TCP/IP V2.0 for OS/2 V3 (WARP) ChameleonNFS V4.0 for Windows

Using TCP/IP for AIX version 3.2.5

1. Enter smitty mkinet

2. Enter serial line INTERNET Network Interface

3. Configure the local and remote IP addresses

4. The mask is not required

5. Do not fill in the baud rate and the dial string

6. PING the IP address of the remote 6416SW.

Using TCP/IP V2.1.2 for IBM DOS V7 (no TFTP support)

1. Use Custom command, then SLIP interface

2. Select SL and enable the interface

3. Select COM1 and 9600 modem speed

4. Configure the local and remote IP addresses

5. The mask is not required

6. PING the IP address of the remote 6416SW.

4-10 ONcore ATM Switch/Control Module: Installation and User's Guide

Using TCP/IP V2.0 for OS/2 V3 (WARP)

1. Configure the SLIP connection using the TCPIPCFG icon then SLIP.

2. Enable the SLIP interface on the correct COMM port.

3. Keep VJ compression off and use 1000 as MTU size.

4. Configure the local and remote IP addresses.

5. The mask is not required.

6. Configure FTFP server using TCPIPCFG icon thru in the FTFP server for 6416SW download and upload operations.

7. Set terminal speed with the mode com1 command.

8. PING the IP address of the remote 6416SW.

AUTOSTART

. This is required

Using ChameleonNFS V4.0 or V4.1 for Windows

1. Configure the SLIP connection using the Custom icon under ChameleonNFS

2. Select COM1 and no flow control PORT option

3. Do not select a modem under the Modem option

4. Configure the local and remote IP addresses

5. The mask is not required.

6. Enter the appropriate hostname in the services/host table.

7. Use the TELNET icon under ChameleonNFS to connect to terminal dialog via VT220 emulation.

4-11

TELNET Sessions Via a Remote Switch

The 6416SW’s remote login feature allows you to log on to an 6416SW from a remote configuration console or network workstation that supports the TELNET protocol.

You can remotely log on to only one 6416SW at a time.

Minimum Local Configuration

Before you can log on to the 6416SW from a remote switch, you must perform a minimum configuration using a configuration console (in either Normal or SLIP mode). The minimum configuration that is required depends on the type of subnetwork you will use for the TELNET session:

Classical IP

Set the ATM address of the 6416SW Enable the port that connects to the ARP server Get the ATM address of the ARP server Set the ARP server ATM address in the 6416SW Set the IP address of the 6416SW Enable the port that will be used for the TELNET session.

LAN Emulation

Set the ATM address of the 6416SW Start the LEC.

These steps are described in Chapter 5, “Configuring the ATM Switch/Control Module” on page 5-1.

4-12 ONcore ATM Switch/Control Module: Installation and User's Guide

Logon Procedure

You specify the 6416SW by entering its IP address with the TELNET command:

C:\ telnet 123.94.2 2.9 [ENTER]

Once you are connected to the remote switch, you must log on by entering the correct password. Afterwards all the commands you enter are run on the remote module as if entered from a local 6416SW session.

To log off from a TELNET session, enter the LOGOUT command. The LOGOUT command disconnects the TELNET connection and reconnects you to the local 6416SW accessed through your configuration console. The following message is displayed with the local management prompt:

ATM2 logout [ENTER]

Bye

Remote session completed C:\

4-13

Figure 4-1 shows an example of an 6416SW remote login. Note that once you are connected to 6416SW A, you can remotely log on and manage the 6416SW modules in either hub B or hub C.

Note: The TELNET protocol is not routable.

Hub C

Hub B

Hub A

RS-232 Console Port of a 6416SW Module

Modem

Figure 4-1. Working in Remote 6416SW Sessions

You can set a timeout period for a remote 6416SW by entering the SET TERMINAL TIMEOUT command. When this value is exceeded, the system automatically logs you off the remote 6416SW session and returns you to your local session.

Although any unsaved configuration changes are still active, they will be lost the next time you reset or reboot the remote 6416SW. To save these changes, you must re-establish the remote session and enter the SAVE command.

4-14 ONcore ATM Switch/Control Module: Installation and User's Guide

Reconfiguring 6416SW Configuration Console Settings

Carry out the procedures in this section only if you need to connect another device (besides the 6416SW configuration console) to the 6416SW, and if the other device runs at a slower baud rate, uses a different parity, or has a different data bit value than the 6416SW's pre-configured factory settings.

For example, if you want to connect a 4800 baud modem to the 6416SW to remotely manage the hub, you must change the factory-set default baud rate from 9600 to 4800. To do so, you would enter the following command:

ONcoreATM> set terminal baud 48 [ENTER]

See the information on the SET TERMINAL commands that allow you to reconfigure configuration console settings.

ONcore Switching Hub/CELLplex 4000 ATM Command Reference Guide

for

Saving Reconfigured Configuration Console Settings

After you use the SET TERMINAL command to reset the baud rate, the parity, or the data bit value for the 6416SW, the change is activated immediately and you lose communication with the configuration console. The new configuration console setting is not, however, permanently saved.

In order to save the configuration console parameters that you reconfigure with the SET command, you must connect the new configuration console to the 6416SW, log on, and enter the SAVE TERMINAL command. Once saved in this way, the new configuration console settings remain stored in memory after you log off and in case of a power failure.

For more information on how to reconfigure and save configuration console settings, see the sections describing the SET TERMINAL commands in the

Hub/CELLplex 4000 ATM Command Reference Guide

ONcore Switching

4-15

Automatic Modem Hangup

If you use a modem to connect to the 6416SW, you can use the SET TERMINAL HANGUP command to automatically hang up the modem connection when you log off the 6416SW. If you do not hang up the modem connection, an unauthorized user can pick up your open session and work in it.

The following command shows what to enter to automatically hang up the modem after you log off the 6416SW. The command is set by default to disable so that the modem does not automatically hang up.

ONcoreATM> set terminal hangup enable [ENTER]

4-16 ONcore ATM Switch/Control Module: Installation and User's Guide

Chapter 5. Configuring the ATM Switch/Control Module

This chapter describes:

How to enter the commands needed to configure the 6416SW module How to save, modify and revert configuration settings How to use 6416SW commands for fault management.

Before beginning the procedures listed below, make sure that:

1. You have installed the 6416SW module correctly (see Chapter 2, “Installation” on page 2-1)

2. You have set up a configuration console and logged on as administrator (see Chapter 4, “Setting-Up and Using a Configuration Console” on page 4-1).

5-1

Configuration Summary

To configure the 6416SW, follow the steps listed below. Each of these steps is described in a subsequent section of this chapter.

1. Set the 6416SW user and administrator passwords.

2. Set the internal clock.

3. Set the local 6416SW parameters such as: Switch name

Switch location

Service contact information Console prompt Console timeout

4. Define the ATM address of the 6416SW. This resets the ATM subsystem.

5. Enable the ports that will be used, and define their interface type type (UNI, SSI, or NNI).

6. If you will connect the ONcore to one or more clusters or subnetworks in an &agenatrm.-based network, you must create trunks (logical links) to the other ATM switches in the network.

If the switches you will connect to are outside the local subnetwork, you must also define static routes to those switches.

7. Enable the ATM media modules that are installed in the hub.

8. If you want to use SNMP to manage the 6416SW, configure the SNMP parameters. The parameters you configure depend on the type of subnetwork you will use for

network management: Classical IP

LAN Emulation Note: You may select only one of the subnetworks to be used for the Default

Gateway.

5-2 ONcore ATM Switch/Control Module: Installation and User's Guide

9. If you want external LAN Emulation Configuration Server (LECS) support, configure the LECS ATM address or fixed PVC, depending on the configuration requirements of the LECS and external LECs (workstations, bridges, and so on).

10. Save all the configuration settings for the 6416SW.

Some of these procedures are mandatory; others are recommended. They are summarized in Table 5-1 on page 5-4. For a detailed description of each 6416SW configuration command, see the

Reference Guide

ONcore Switching Hub/CELLplex 4000 ATM Command

5-3

Table 5-1 (Page 1 of 2). 6416SW Configuration Commands

Procedure 6416SW Command Priority

Set user and administrator passwords

Set the internal clock SET CLOCK Recommended Set 6416SW name SET DEVICE NAME Recommended Set hub location SET DEVICE LOCATION Recommended Set contact information SET DEVICE CONTACT Recommended Set 6416SW console

prompt Set console timeout

value Set 6416SW ATM

address Connect ATM media

modules Enable ports and set

ATM interfaces

SET DEVICE PASSWORD Mandatory

SET TERMINAL PROMPT Optional

SET TERMINAL TIME_OUT Optional

SET DEVICE ATM_ADDRESS Mandatory

SET MODULE Mandatory

SET PORT Mandatory

Set up trunks between switches within a subnetwork

Define static routes for switches in other subnetworks

SET LOGICAL_LINK Mandatory to

link to other ATM switches

SET STATIC_ROUTE Mandatory to

link to ATM switches in another subnetwork

5-4 ONcore ATM Switch/Control Module: Installation and User's Guide

Table 5-1 (Page 2 of 2). 6416SW Configuration Commands

Procedure 6416SW Command Priority

Set SNMP parameters

- Classical IP

Set SNMP parameters

- LAN emulation

Set LECS ATM address

Save your configuration settings

SET DEVICE IP_ADDRESS SET DEVICE DEFAULT_GATEWAY SET DEVICE ARP_SERVER SET COMMUNITY SET ALERT

SET DEVICE LAN_EMULATION_CLIENT SET DEVICE DEFAULT_GATEWAY SET COMMUNITY SET ALERT

SET LAN_EMUL CONFIGURATION_SERVER

SAVE ALL Mandatory

Mandatory to manage the 6416SW from a Classical IP subnetwork

Mandatory to manage the 6416SW from an 802.3 LAN Emulation subnetwork

Optional

5-5

Setting 6416SW Passwords

It is necessary to set two levels of 6416SW passwords:

Administrator password that provides access to all 6416SW commands with

read-write (configuration) access

User password that provides access to a subset of 6416SW commands including

most SHOW commands, PING and TELNET.

See the more information on access to 6416SW commands.

ONcore Switching Hub/CELLplex 4000 ATM Command Reference Guide

Administrator Password

1. At the console prompt, type the SET DEVICE PASSWORD ADMINISTRATOR command:

ONcoreATM> set device password administrator

Then press Enter.

2. In the next three fields displayed, enter your current password and the new password (up to fifteen characters) twice as shown below. For security purposes, the values you enter are not displayed on the screen.

Enter current administrator password: {old password} New password: {new password} Re-enter password: {new password}

for

Then press Enter. You are prompted when your password is accepted:

Password changed.

3. To save your new password, type the SAVE DEVICE or the SAVE ALL command:

5-6 ONcore ATM Switch/Control Module: Installation and User's Guide

ONcoreATM> save device

Then press Enter.

You will need to enter the new administrator password the next time you log on to the 6416SW. Note that you have only ten seconds to enter a password when the Password prompt is displayed. If you do not enter a password, a Timeout message is displayed. To redisplay the Password prompt and start again, press Enter.

5-7

User Passwords

1. Log on to 6416SW using the administrator password.

2. At the management prompt, type the SET DEVICE PASSWORD USER command:

ONcoreATM> set device password user

Then press Enter.

3. In the next three fields displayed, enter the administrator password and the new user password (up to fifteen characters) twice as shown here:

Enter current administrator password: {admin password} New password: {new user password} Re-enter password: {new user password}

Then press Enter. You are prompted when the password is accepted:

Password changed.

4. To save your new user password, type the SAVE DEVICE or the SAVE ALL command:

ONcoreATM> save device

Then press Enter.

5-8 ONcore ATM Switch/Control Module: Installation and User's Guide

Setting the Internal Clock

You need to set the 6416SW's 24-hour internal clock only once, when you install the 6416SW. When you set the internal clock, you establish a starting time, date, and day.

To set the internal clock, enter the SET CLOCK command and specify the time and

date parameters. Then press Enter.

For example, the following command sets the internal clock to 4:44 p.m. on September 30, 1996:

ONcoreATM> set clock 16:44 1996/ 9/3 [ENTER]

The 6416SW internal clock uses its own battery and functions even when the 6416SW fails to operate.

5-9

Setting Local 6416SW Parameters

The 6416SW is pre-configured with default settings that may need to be changed before you can use the switch. To modify these 6416SW parameters, you must log on using the system administrator password. Then use the SET command to change the values for any of the following:

6416SW name

Contact name and location

Console prompt

Console timeout value.

A brief description of each parameter is given in the following sections. For more detailed information, see the

Reference Guide

Switch Name

ONcore Switching Hub/CELLplex 4000 ATM Command

In order to simplify the command parameters you need to enter to perform certain ATM tasks, you can assign a unique name to each 6416SW. You can then use this name instead of the IP address to identify the 6416SW.

To set a unique name for the 6416SW, enter the SET DEVICE NAME command and press Enter.

ONcoreATM> set device name [6416SW name][ENTER]

5-10 ONcore ATM Switch/Control Module: Installation and User's Guide

Service Contact Information

After installing and logging on to the 6416SW, you should enter the location of the 6416SW and the name of the appropriate person to contact in case of a failure in the ATM subsystem or with the 6416SW

To do so, enter the following commands:

SET DEVICE LOCATION to specify where the 6416SW is installed SET DEVICE CONTACT to specify the name of the service personnel to contact.

Console Prompt

3Com also recommends that you customize the prompt used by each 6416SW console. This helps you to easily recognize the 6416SW to which you are connected when you are logged on to a remote switch.

The default prompt is:

ONcoreATM>

Suggestion: To make it easier to recognize the 6416SW by its command prompt, set the prompt to the name of the 6416SW used in the SET DEVICE NAME command. See the more information.

To customize the 6416SW management prompt, use the SET TERMINAL PROMPT command.

ONcore Switching Hub/CELLplex 4000 ATM Command Reference Guide

ONcoreATM>set terminal prompt ATM2 [ENTER] ATM2>

for

5-11

Console Timeout

The TERMINAL TIMEOUT parameter is a safety precaution that lets you specify how long you can remain logged on to the 6416SW console without entering any data from the keyboard. This prevents unauthorized users from accessing the 6416SW if you forget to log off the system. If no keystroke is entered for the time period specified by SET TERMINAL TIMEOUT, the system automatically logs you off.

The default value for SET TERMINAL TIMEOUT is . This means that no timeout period is set and that you cannot be automatically logged off from the system.

To specify a timeout value (in minutes), use the SET TERMINAL TIMEOUT command.

ONcoreATM>set terminal timeout 2 [ENTER]

5-12 ONcore ATM Switch/Control Module: Installation and User's Guide

Setting the ATM Address of the 6416SW

A default ATM address is provided with the 6416SW. You can use this default address only for a stand-alone (isolated) 6416SW. For all other 6416SW configurations, a new ATM address must be defined. See “Defining the ATM Address of the 6416SW” on page 3-7 for more information.

To set the ATM address for the 6416SW, you use the SET DEVICE ATM_ADDRESS command:

ONcoreATM> set device atm_address [ENTER]

ONcoreATM>Enter ATM address: 39.11.FF.22.99.99.99.....1.49.11.11.11.11.

11.11.49 [ENTER]

The SET DEVICE ATM_ADDRESS command automatically saves the new address and resets the ATM subsystem.

5-13

Connecting ATM media Modules

After setting the ATM address, you must connect the ATM media modules to the network. This is necessary because the factory default setting isolates them from receiving network traffic.

To connect an ATM media module, you use the SET MODULE command:

ONcoreATM> set module 3 connected [ENTER]

Afterwards, you can enable individual ports on the module and configure an ATM interface for each port. This requires the SET PORT command and is described in the next section, “Enabling ATM Ports and Interfaces” on page 5-15.

5-14 ONcore ATM Switch/Control Module: Installation and User's Guide

3COM 6416SW User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual