IBM 8239 Token-Ring Stackable Hub Setup And User Manual

8239 Token-Ring Stackable Hub ÉÂÔ

Setup and User’s Guide

GA27-4209-00

8239 Token-Ring Stackable Hub ÉÂÔ

Setup and User’s Guide

GA27-4209-00

Note

Before using this document, read the general information under “Notices” on page ix.

First Edition (June 1998)

This edition applies to the 8239 Token-Ring Stackable Hub and to all subsequent releases and modifications until otherwise indicated
in new editions or technical newsletters.

Order publications through your IBM representative or the IBM branch office serving your locality. Publications are not stocked at the
address below.

IBM welcomes your comments. A form for readers' comments is provided at the back of this publication. If the form has been
removed, you may address your comments to:

International Business Machines Corporation
Design and Information Development

Department CGF

P.O. Box 12195
Research Triangle Park, NC 27709-9990

U.S.A.
When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes

appropriate without incurring any obligation to you.

 Copyright International Business Machines Corporation 1998. All rights reserved.

Note to U.S. Government Users — Documentation related to restricted rights — Use, duplication or disclosure is subject to
restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

Contents

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Safety Information Booklet .............................. ix

Power Disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Electronic Emission Notices .............................. xiv

Federal Communications Commission (FCC) Statement ........... xiv

Industry Canada Class A Emission Compliance Statement .......... xv

Avis de conformité aux normes d'Industrie Canada .............. xv

European Community (CE) Mark of Conformity Statement .......... xv

Japanese Voluntary Control Council for Interference (VCCI) Statement ... xvi

Taiwanese Class A Warning Statement ..................... xvi

Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

How This Manual Is Organized ............................ xvii

Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Visit our Web Site .................................. xviii

Chapter 1. Introduction and Planning ...................... 1-1

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Concentrator Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Device and Network Management .......................... 1-3

Cable Types and Distances .............................. 1-4

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Stack Unit Cabling ................................. 1-4

RI/RO Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Service Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Chapter 2. Installing the 8239 Hardware ..................... 2-1

Preparing for Setup .................................. 2-1

Verifying the Shipment ................................. 2-1

Installing Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Placing the 8239 .................................... 2-2

Surface-Mounting the 8239 ............................ 2-2

Rack-Mounting the 8239 .............................. 2-2

Connecting the Cables ................................. 2-4

Connecting Stations to the 8239 ......................... 2-4

Cabling a Stack ................................... 2-5

Connecting an ASCII Terminal or Modem to the EIA-232 Port ........ 2-5

Powering On the 8239 ................................. 2-6

 Copyright IBM Corp. 1998 iii

Chapter 3. Installing Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

16-Port Expansion Feature .............................. 3-1

Removing a 16-Port Expansion Feature ..................... 3-1

Installing a 16-Port Expansion Feature ...................... 3-1

RI/RO Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Removing a RI/RO Module ............................ 3-2

Installing a RI/RO Module ............................. 3-3

Chapter 4. Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Using the Command Interface ............................ 4-1

Login Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Management Using Emulation Software ..................... 4-1

Management Using Telnet ............................. 4-2

Command Interface Conventions ......................... 4-2

Verifying, Saving, and Restoring Parameters .................. 4-4

Configuring the 8239 .................................. 4-4

Configuring the 8239 for Out-of-Band Connectivity ............... 4-5

Configuring the 8239 for In-Band Connectivity ................. 4-5

Configuring for Network Monitoring ........................ 4-7

Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Chapter 5. Problem Determination Procedures ................ 5-1

Using the LEDs to Diagnose Problems ....................... 5-1

Power Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Box Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Ring Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Port Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

RI/RO Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Stack In/Stack Out Status ............................. 5-7

LCD and LED Codes ................................ 5-14

POST Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Operational Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Chapter 6. Concentrator Functions . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Port Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Port Configuration Options ............................. 6-1

Inserting/Deinserting a Station ........................... 6-3

Port Operational Status and Port LEDs ..................... 6-4

Address-to-Port Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Fanout Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

MAC-less Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Accessing the Address-to-Port Mapping Information .............. 6-6

Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Identifying which MAC Addresses are Authorized ............... 6-7

Configuring the Action on Intrusion ........................ 6-8

Enabling Port Security ............................... 6-8

Ring In/Ring Out Concepts (8239 Model 1 only) .................. 6-8

RI/RO Configuration Options ........................... 6-9

Unwrapping the RI/RO onto the Stack Data Ring ............... 6-10

RI/RO Operational Status and RI/RO LEDs .................. 6-10

Stack Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

SI/SO Configuration Options ........................... 6-11

SI/SO LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

Beacon Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

iv 8239 Setup and User’s Guide

Data In/Data Out Connection .......................... 6-12

Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Management Interface (8239 Model 1 only) .................. 6-13

Ring In/Ring Out Connection (8239 Model 1 only) .............. 6-14

Within the 8239 .................................. 6-14

Chapter 7. 8239 Device Management ...................... 7-1

Connectivity Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Out-of-Band Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

In-Band Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Access Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Creating Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Editing Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Running Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Trap Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Methods of Viewing Traps ............................ 7-11

Configuring for Trap Generation and Accessing Trap Information ..... 7-12

MAC Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

Chapter 8. Network Management . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Accessing Network Management Data ....................... 8-1

IEEE 802.5 Token Ring MIB (RFC 1748) ...................... 8-2

Configuring the 8239 Model 1 to Support the 802.5 MIB ........... 8-2

Accessing 802.5 Information ............................ 8-2

MIB-II (RFC 1213) ................................... 8-4

Configuring the 8239 Model 1 to Support MIB-II ................ 8-4

Accessing MIB II Information ........................... 8-4

Remote Monitoring: RMON, RMON 2, ECAM ................... 8-5

RMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

RMON 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

ECAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

IBM Token-Ring Surrogate MIB and Surrogate Trap MIB ............ 8-11

Surrogate Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

Configuration Report Server (CRS) ....................... 8-13

Ring Error Monitor (REM) ............................ 8-13

Ring Parameter Server (RPS) .......................... 8-16

Chapter 9. Planning Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

8239 Cabling Chart ................................... 9-1

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Ring Connection for Optional RI/RO Module .................. 9-1

Token-Ring Port Connections ........................... 9-1

Additional Ports with Optional 16-Port Expansion Feature ........... 9-1

8239 SNMP Agent Configuration Parameters Worksheet ............. 9-2

Appendix A. Warranty Information . . . . . . . . . . . . . . . . . . . . . . . A-1

Customer Carry-In Exchange via Mail-In ..................... A-1

Statement of Limited Warranty ........................... A-2

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-1

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-5

Contents v

vi 8239 Setup and User’s Guide

Figures

1-1. 8239 Model 1 ................................. 1-1

1-2. 8239 Model 2 ................................. 1-2

1-3. 8239 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2-1. Rotating the Rack-Mounting Brackets ................... 2-3

2-2. Attaching the Cable Management Bracket ................ 2-4

2-3. Connecting Stations to the 8239 ...................... 2-4

2-4. Stack Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2-5. Power on the 8239 ............................. 2-7

3-1. 16-Port Expansion Feature ......................... 3-1

3-2. RI/RO Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3-3. Cabling for the Optical Fiber RI/RO Module ............... 3-3

3-4. Cabling for the RJ-45 RI/RO Module ................... 3-4

5-1. 8239 Model 1 LEDs and LCD ....................... 5-1

5-2. 8239 Model 2 LEDs ............................. 5-2

5-3. Port Status LEDs .............................. 5-3

5-4. RI/RO LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5-5. Stack In/Stack Out LEDs .......................... 5-8

 Copyright IBM Corp. 1998 vii

viii 8239 Setup and User’s Guide

Notices

References in this publication to IBM products, programs, or services do not imply
that IBM intends to make these available in all countries in which IBM operates.
Any reference to an IBM product, program, or service is not intended to state or
imply that only IBM’s product, program, or service may be used. Any functionally
equivalent product, program, or service that does not infringe any of IBM’s
intellectual property rights may be used instead of the IBM product, program, or
service. Evaluation and verification of operation in conjunction with other products,
except those expressly designated by IBM, are the user’s responsibility.

IBM may have patents or pending patent applications covering subject matter in
this document. The furnishing of this document does not give you any license to
these patents. You can send license inquiries, in writing, to the IBM Director of
Licensing, IBM Corporation, 500 Columbus Avenue, Thornwood, NY 10594 USA.

Safety Information

Read this important safety information before using the 8239.

Safety Information Booklet

Danger: Before you begin to install this product, read the safety information

in

Caution: Safety Information—Read This First

safe procedures for cabling and plugging in electrical equipment.

Gevaar: Voordat u begint met de installatie van dit produkt, moet u eerst de

veiligheidsinstructies lezen in de brochure

eerst,

SD21-0030. Hierin wordt beschreven hoe u electrische apparatuur op een

veilige manier moet bekabelen en aansluiten.

Danger: Avant de procéder à l'installation de ce produit, lisez d'abord les

consignes de sécurité dans la brochure

lire au préalable,

connecter les appareils électriques en toute sécurité.

Perigo: Antes de começar a instalar este produto, leia as informações de

segurança contidas em

Primeiro,

instalação de cabos e conexões em equipamentos elétricos.

SD21-0030. Esse folheto descreve procedimentos de segurança para a

, SD21-0030. This booklet describes

PAS OP! Veiligheidsinstructies—Lees dit

ATTENTION: Consignes de sécurité—A

SD21-0030. Cette brochure décrit les procédures pour câbler et

Cuidado: Informações Sobre Segurança—Leia Isto

 Copyright IBM Corp. 1998 ix

Fare! Før du installerer dette produkt, skal du læse sikkerhedsforskrifterne i

NB: Sikkerhedsforskrifter—Læs dette først

SD21-0030. Vejledningen beskriver den

fremgangsmåde, du skal bruge ved tilslutning af kabler og udstyr.

Gevaar Voordat u begint met het installeren van dit produkt, dient u eerst de

veiligheidsrichtlijnen te lezen die zijn vermeld in de publikatie

Information - Read This First

, SD21-0030. In dit boekje vindt u veilige procedures

Caution: Safety

voor het aansluiten van elektrische appratuur.

VAARA: Ennen kuin aloitat tämän tuotteen asennuksen, lue julkaisussa

Varoitus: Turvaohjeet—Lue tämä ensin

, SD21-0030, olevat turvaohjeet. Tässä

kirjasessa on ohjeet siitä, miten sähkölaitteet kaapeloidaan ja kytketään turvallisesti.

Danger : Avant d'installer le présent produit, consultez le livret

Informations pour la sécurité — Lisez-moi d'abord

, SD21-0030, qui décrit les

Attention :

procédures à respecter pour effectuer les opérations de câblage et brancher les
équipements électriques en toute sécurité.

Vorsicht: Bevor mit der Installation des Produktes begonnen wird, die

Sicherheitshinweise in

Achtung: Sicherheitsinformationen—Bitte zuerst lesen,

IBM
Form SD21-0030. Diese Veröffentlichung beschreibt die Sicherheitsvorkehrungen
für das Verkabeln und Anschließen elektrischer Geräte.

x 8239 Setup and User’s Guide

Vigyázat: Mielôtt megkezdi a berendezés üzembe helyezését, olvassa el a

Caution: Safety Information— Read This First,

biztonsági információkat. Ez a könyv leírja, milyen biztonsági intézkedéseket kell
megtenni az elektromos berendezés huzalozásakor illetve csatlakoztatásakor.

Pericolo: prima di iniziare l'installazione di questo prodotto, leggere le

informazioni relative alla sicurezza riportate nell'opuscolo

di sicurezza — Prime informazioni da leggere

il cablaggio ed il collegamento di apparecchiature elettriche.

SD21-0030 könyvecskében leírt

Attenzione: Informazioni

in cui sono descritte le procedure per

Fare: Før du begynner å installere dette produktet, må du lese
sikkerhetsinformasjonen i
SD21-0030 som beskriver sikkerhetsrutinene for kabling og tilkobling av elektrisk
utstyr.

Notices xi

Advarsel: Sikkerhetsinformasjon — Les dette først

,

Perigo: Antes de iniciar a instalação deste produto, leia as informações de

segurança

Cuidado: Informações de Segurança — Leia Primeiro

, SD21-0030. Este
documento descreve como efectuar, de um modo seguro, as ligações eléctricas
dos equipamentos.

Peligro: Antes de empezar a instalar este producto, lea la información de

seguridad en

Atención: Información de Seguridad — Lea Esto Primero,

SD21-0030.
Este documento describe los procedimientos de seguridad para cablear y enchufar
equipos eléctricos.

Varning — livsfara: Innan du börjar installera den här produkten bör du läsa

säkerhetsinformationen i dokumentet

först,

SD21-0030. Där beskrivs hur du på ett säkert sätt ansluter elektrisk

Varning: Säkerhetsföreskrifter— Läs detta

utrustning.

xii 8239 Setup and User’s Guide

Power Disconnection

Danger: The main power disconnect for this unit is the appliance inlet
located on the back of the machine. Therefore, the machine should be installed in
such a way that the appliance inlet can be accessed.

DANGER. Le dispositif permettant de couper l'alimentation principale de
cette unité se situe à l'arrière de la machine. Ce dispositif doit donc être accessible.

Vorsicht: Der Hauptschalter zur Unterbrechung der Stromversorgung für
diese Einheit ist der Schalter, der sich auf der Rückseite der Maschine befindet. Die
Maschine sollte daher so aufgestellt werden, daß dieser Schalter jederzeit
zugänglich ist.

Pericolo: Per scollegare questa unità, occorre staccare la spina posta sul
retro della macchina; pertanto la macchina deve essere installata in modo tale che
tale spina sia accessibile.

Fare: Denne enheten frakobles hovednettet via apparatinntaket på baksiden
av maskinen. Derfor må maskinen installeres slik at apparatinntaket er lett
tilgjengelig.

Notices xiii

Perigo: Para desligar a alimentação principal desta unidade é necessário
desconectar o cabo da tomada eléctrica localizada na parte posterior da máquina.
Por consequência, a máquina deve ser instalada de modo a permitir o fácil acesso
a essa tomada.

ОПАСНО: Разъем для отключения питания данного блока
расположен на задней стенке. Поэтому устанавливайте
машину так, чтобы разъем питания был доступен.

Peligro: El interruptor principal de desconexión de esta unidad es la entrada
de conexión del aparato situado en la parte trasera de la máquina. Por lo tanto, la
máquina debe instalarse de modo que la entrada de conexión del aparato sea
accesible.

FARA: Brytning av huvudströmmen till den här enheten görs vid
elanslutningen på baksidan av maskinen. Placera därför maskinen så att
elanslutningen är lättåtkomlig.

Electronic Emission Notices

Federal Communications Commission (FCC) Statement

Note: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.

Properly shielded and grounded cables and connectors must be used in order to
meet FCC emission limits. IBM is not responsible for any radio or television
interference caused by using other than recommended cables and connectors or by
unauthorized changes or modifications to this equipment. Unauthorized changes or
modifications could void the user’s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1)this device may not cause harmful interference, and
(2)this device must accept any interference received, including interference that
may cause undesired operation.

xiv 8239 Setup and User’s Guide

Industry Canada Class A Emission Compliance Statement

This Class A digital apparatus complies with Canadian ICES-003.

Avis de conformité aux normes d'Industrie Canada

Cet appareil numérique de la classe A est conform à la norme NBM-003 du
Canada.

European Community (CE) Mark of Conformity Statement

This product is in conformity with the protection requirements of EU Council
Directive 89/336/EEC on the approximation of the laws of the Member States
relating to electromagnetic compatibility. IBM cannot accept responsibility for any
failure to satisfy the protection requirements resulting from a non-recommended
modification of the product, including the fitting of non-IBM option cards. This
product has been tested and found to comply with the limits for Class A Information
Technology Equipment according to CISPR 22/European Standard EN 55022. The
limits for Class A equipment were derived for commercial and industrial
environments to provide reasonable protection against interference with licensed
communication equipment.

Attention: This is a Class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to take adequate
measures.

Zulassungsbescheinigung laut dem Deutschen Gesetz über die
elektromagnetische Verträglichkeit von Geräten (EMVG) vom 30. August 1995
(bzw. der EMC EG Richlinie 89/336).

Dieses Gerät ist berechtigt in Übereinstimmung mit dem Deutschen EMVG das
EG-Konformitätszeichen - CE - zu führen.

Verantwortlich für die Konformitätserklärung nach Paragraph 5 des EMVG ist die
IBM Deutschland Informationssysteme GmbH, 70548 Stuttgart.

Informationen in Hinsicht EMVG Paragraph 3 Abs. (2) 2:
EN 55022 Klasse A Geräte müssen mit folgendem Warnhinweis versehen werden:

“Warnung: dies ist eine Einrichtung der Klasse A. Diese Einrichtung kann im
Wohnbereich Funkstörungen verursachen; in diesem Fall kann vom Betreiber
verlangt werden, angemessene Maßnahmen durchzuführen und dafür
aufzukommen.”

EN 50082-1 Hinweis: “Wird dieses Gerät in einer industriellen Umgebung betrieben
(wie in EN 50082-2 festgelegt), dann kann es dabei eventuell gestört werden. In
solch einem Fall ist der Abstand bzw. die Abschirmung zu der industriellen
Störquelle zu vergrößern.”

Anmerkung: Um die Einhaltung des EMVG sicherzustellen sind die Geräte, wie in
den IBM Handbüchern angegeben, zu installieren und zu betreiben.

Notices xv

Japanese Voluntary Control Council for Interference (VCCI) Statement

This product is a Class A Information Technology Equipment and conforms to the
standards set by the Voluntary Control Council for Interference by Technology
Equipment (VCCI). In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.

Taiwanese Class A Warning Statement

Battery Disposal

The 8239 Model 1 contains a clock module that has an embedded lithium battery.
This battery is not replaceable. Please dispose of this module in accordance with
local ordinances.

Trademarks

IBM and Nways are trademarks of the IBM Corporation in the United States or
other countries or both.

UNIX is a registered trademark in the United States and other countries licensed
exclusively through X/Open Company Limited.

Microsoft, Windows, Windows NT, and the Windows 95 logo are trademarks or
registered trademarks of Microsoft Corporation.

Other company, product, and service names may be trademarks or service marks
of others.

xvi 8239 Setup and User’s Guide

Preface

This manual contains information for anyone who is planning to install, configure, or
manage an 8239 Token-Ring Stackable Hub (8239).

How This Manual Is Organized

This manual contains the following sections:

¹ Chapter 1, “Introduction and Planning” on page 1-1 introduces the functions,

models, and physical requirements. It also contains configuration and network
planning information.

¹ Chapter 2, “Installing the 8239 Hardware” on page 2-1 gives instructions for

setting up the 8239.

¹ Chapter 3, “Installing Features” on page 3-1 provides information needed to

install the optional features.

¹ Chapter 4, “Configuration” on page 4-1 describes the configuration process.
¹ Chapter 5, “Problem Determination Procedures” on page 5-1 provides problem

determination procedures and lists all error codes.

¹ Chapter 6, “Concentrator Functions” on page 6-1 describes the concentrator

functions provided by the 8239.

¹ Chapter 7, “8239 Device Management” on page 7-1 explains how to

implement management of the device.

¹ Chapter 8, “Network Management” on page 8-1 contains information about

accessing network management data.

¹ Chapter 9, “Planning Charts” on page 9-1 contains charts to help with planning

for cabling and configuration.

¹ Appendix A, “Warranty Information” on page A-1 provides details about your

warranty.

Related Publications

The following publications are shipped with the product in displayable softcopy form
on the 8239 Token-Ring Stackable Hub Softcopy Library CD-ROM (08L3308):

8239 Token-Ring Stackable Hub Setup and User’s Guide,
8239 Token-Ring Stackable Hub Command Reference,

This CD-ROM is shipped with initial orders for the 8239.

GA27-4209

GA27-4208

These additional publications are shipped in hard copy:

¹

8239 Token-Ring Stackable Hub Quick Reference,

¹

Caution: Safety Information - Read This First,

¹

License Agreement for Machine Code

For general information about token-ring architecture, see

Architecture

 Copyright IBM Corp. 1998 xvii

GX27-4047

SD21-0030

, Z125-5468

Token-Ring Network

, SC30–3374.

Visit our Web Site

This IBM web page provides product information:

http://www.networking.ibm.com/support

xviii 8239 Setup and User’s Guide

Chapter 1. Introduction and Planning

This chapter describes the functions of and the physical requirements for the IBM
8239 Token-Ring Stackable Hub (8239). It also contains planning information.

The 8239 is a stackable concentrator, allowing token-ring stations to share a
network. Up to eight 8239s can be interconnected to form a stack. The stack
connection provides a control path as well as a token-ring data path. The control
path is an internal token-ring segment used by the stack units to communicate with
each other. The token-ring data path connects the stack units into a shared
token-ring network for user traffic. The 8239 is available in two models and
provides a range of network management functions.

Models

Both models of the 8239:

¹ Support basic concentrator functions, such as attachment of port stations,

beacon recovery, address-to-port mapping, and so on

¹ Attach up to 16 workstations
¹ Allow you to attach up to 32 workstations with an optional port expansion

feature

¹ Provide configuration and status information for each device through an

out-of-band connection

Figure 1-1. 8239 Model 1

 Copyright IBM Corp. 1998 1-1

Features

Figure 1-2. 8239 Model 2

The Model 1, in addition:

¹ Supports additional concentrator functions
¹ Provides network management functions
¹ Supports in-band connectivity
¹ Supports connection to other compatible concentrators

The following optional features are available for the 8239.

¹ 16-Port Expansion Feature

The 16-Port Expansion Feature contains 16 RJ-45 token-ring ports, increasing
the supported number of ports in a single 8239 from 16 to 32. The 16-Port
Expansion Feature can be installed in the feature slot of the 8239.

¹ RI/RO Module (Model 1 only)

Use the Ring In/Ring Out Module (RI/RO Module) to connect to another 8239
stack or to other compatible concentrators, such as:

– Token-Ring 8228 Multistation Access Unit
– 8230 Token-Ring Network Controlled Access Unit
– 8238 Token-Ring Stackable Hub
– 8260 Nways Multiprotocol Switching Hub

It is installed in the RI/RO Module slot on the Model 1. There are two types of
RI/RO Module:

– RJ-45 RI/RO Module, providing an RJ-45 copper interface
– Optical Fiber RI/RO Module, providing an ST-connector optical fiber

interface

1-2 8239 Setup and User’s Guide

Configuration

The 8239 is shipped with a default configuration. If this configuration is acceptable,
you need only power on the 8239 and connect the cables. The configuration
parameters along with their default values are listed in “Configuration Parameters”
on page 4-9.

If you need to change the configuration, you can do so using:

¹ EIA-232 terminal interface (both models)
¹ Telnet terminal interface (Model 1 only)
¹ SNMP (Model 1 only)
¹ BOOTP (Model 1 only)
¹ Configuration setup file loaded via XMODEM (both models) or TFTP (Model 1

only)

Concentrator Functions

Each 8239 provides 16 RJ-45 token-ring ports. Cabling may be either unshielded
twisted pair (UTP) or shielded twisted pair (STP). The 8239 has an expansion slot
that allows you to add 16 additional RJ-45 ports, for a total of 32 ports. Up to eight
8239 can be connected to form a single stack using the stack-in and stack-out
ports. Thus, there can be up to 256 token-ring ports supported in an 8239 stack.
Any combination of 8239 Model 1s and 8239 Model 2s can make up a stack.

The 8239 provides address-to-port mapping information that identifies which MAC
addresses are attached to which ports on the 8239. Fanout devices and MAC-less
devices attached to 8239 ports also are supported by this mapping feature.

The 8239 provides port security. Port security allows you to identify specific MAC
addresses that are permitted to insert at a given port. You can configure a port to
respond to a security intrusion by:

¹ Disabling the port
¹ Reporting the intrusion attempt
¹ Disabling and reporting the intrusion attempt

The 8239 provides automatic beacon recovery when hard-error faults occur.
Hard-error faults are automatically detected and isolated to minimize the impact on
the network.

Device and Network Management

The 8239 can be managed in these ways:

¹ Out-of-band access through the EIA-232 port
¹ In-band access using Telnet, SNMP, PING, and TFTP (8239 Model 1 only)

Device management consists of configuring the stack, obtaining status information
from the stack, and loading code on the stack.

The network management functions supported by the 8239 Model 1 are:

¹ IEEE 802.5 Token Ring MIB

Chapter 1. Introduction and Planning 1-3

¹ MIB II

¹ Remote Monitoring (RMON)

¹ RMON 2

¹ Enterprise Communications Analysis Module (ECAM)
¹ IBM Token Ring Surrogate MIB and Surrogate Trap MIB

Cable Types and Distances

This section gives information about supported cable types and maximum cable
distances.

Ports

Table 1-1 shows the types of cable and maximum distances supported for port
cabling.

Table 1-1. Port Cabling

Cable Type 4-Mbps Ring Speed 16-Mbps Ring Speed

UTP, ScTP, or FTP Cat 3 250 m (820 ft) 100 m (328 ft)
UTP, ScTP, or FTP Cat 4 425 m (1394 ft) 210 m (689 ft)
UTP, ScTP, or FTP Cat 5 425 m (1394 ft) 225 m (738 ft)
STP or STP-A 750 m (2460 ft) 375 m (1230 ft)

Stack Unit Cabling

You can install up to eight 8239s in a stack, using any combination of 8239 Model
1s and 8239 Model 2s in the stack. Use standard TIA/EIA/ANSI 568A or ISO/IEC
11801 Category 5 cable for your stack.

Determining Maximum Cable Length

Each of the 8239s in a stack can be up to 25m (82 ft) apart without regard to the
total distance among all 8239s in the stack. If distances over 25m are required,
they are supported provided that the sum of all of the stack cable lengths minus the
length of the shortest stack cable does not exceed 210 M (689 ft). For example,
four 8239s have the following stack cables connecting them to form a stack:

Cable 1 connects stack unit 1 to stack unit 2 1 m
Cable 2 connects stack unit 2 to stack unit 3 25 m
Cable 3 connects stack unit 3 to stack unit 4 25 m
Cable 4 connects stack unit 4 to stack unit 1 150 m

To see if this configuration is allowable, use this formula:

(Total length of stack cables) - (length of shortest cable) < 210 m

Substituting the values in the example in this formula:

1 + 75 + 90 + 150 - 1 = 200

Because 200 m is less than 210 m, this configuration is allowable. In this case,
even though there are lengths of cable that are greater than 25 m, the configuration
is still acceptable because the total distance is less than 210 m.

Attention: To prevent ring disruptions, be sure you connect Stack-In and Stack-Out
cables at both ends.

1-4 8239 Setup and User’s Guide

RI/RO Module

This section describes cabling for the RJ-45 RI/RO Module and the Optical Fiber
RI/RO Module.

RJ-45 RI/RO Module

Table 1-2 shows the types of cable and maximum distances supported for the
RJ-45 RI/RO Module.

Table 1-2. RJ-45 RI/RO Module Cabling

Cable Type 4-Mbps Ring Speed 16-Mbps Ring

Speed

UTP, ScTP, or FTP Cat 3 250 m (820 ft) 100 m (328 ft)
UTP, ScTP, or FTP Cat 4 425 m (1394 ft) 210 m (689 ft)
UTP, ScTP, or FTP Cat 5 425 m (1394 ft) 225 m (738 ft)
STP or STP-A 750 m (2460 ft) 375 m (1230 ft)

Optical Fiber RI/RO Module

The recommended maximum fiber length that can be used between Ring In and
Ring Out fiber connections is 2 km (1.2 miles) of 62.5/125-micron multimode optical
fiber cable. This distance applies to both 4-Mbps and 16-Mbps rings. See

Cabling System Optical Fiber Planning and Installation

information about optical fiber.

Physical Specifications

This section gives the physical specifications, environmental requirements, and
power requirements of the 8239.

Dimensions

Figure 1-3 on page 1-6 shows the exterior dimensions of the 8239.

IBM

, GA27–3943, for more

Chapter 1. Introduction and Planning 1-5

Figure 1-3. 8239 Dimensions

Placement

The 8239 can be placed on a tabletop or installed in a customer-supplied rack.
To surface-mount the 8239, choose a flat horizontal surface sturdy enough to

support the weight of the 8239. Do not mount the 8239 vertically.
The 8239 can be installed in a standard, open, EIA 19-in. rack in a wiring-closet

environment. The rack must meet the requirements of ANSI/EIA RS-310-C. The
8239 requires 1.5 rack units.

Weight

8239 Model 1: 7.0 kg (15.4 lb) when empty; 7.4 kg (16.4 lb) when fully loaded
8239 Model 2: 7.0 kg (15.4 lb) when empty; 7.4 kg (16.4 lb) when fully loaded

Service Clearances

Front Adequate space to view LEDs
Sides Minimum of 50 mm (2 in.) for cooling purposes
Rear Minimum of 130 mm (5 in.) to provide for cables

Environmental Requirements

Operating Temperature 10°— 40° C (50°—104° F)
Storage Temperature -40°—60° C (-40°—140° F)
Humidity 20°—85%

1-6 8239 Setup and User’s Guide

Power Requirements

The 8239 requires input ac voltage within the range of 88 V ac to 265 V ac at a
frequency of 47 Hz to 63 Hz.

The maximum power consumption of an 8239 that is fully populated with features is
85 W.

Chapter 1. Introduction and Planning 1-7

1-8 8239 Setup and User’s Guide

Chapter 2. Installing the 8239 Hardware

This chapter provides instructions for setting up the 8239.
Before installing the 8239, be sure to read “Safety Information” on page ix.

Preparing for Setup

Complete the following tasks before beginning the setup process:

¹ Verify that appropriate power outlets are available.
¹ Gather network documentation identifying devices and specifying port

connections. The network administrator is responsible for network planning.
Worksheets for planning your 8239 installation are provided in Chapter 9,
“Planning Charts” on page 9-1.

¹ You will need access to a local ASCII terminal or to the terminal that is being

used for remote access.

Verifying the Shipment

After you have unpacked the shipping container, use the following Inventory
Checklist to verify that you have the items listed.

Inventory Checklist

¹ Hardware

__ 8239 Model 1 or Model 2
__ Power cord (U.S., Canada, and Latin America)
__ Stack Cable (standard Category 5 UTP)
__ Cable management bracket

¹ Media

__CD containing this information:

8239 MIB

¹ Printed publications

__
__
__
__
__

8239 Token-Ring Stackable Hub Setup and User’s Guide
8239 Token-Ring Stackable Hub Command Reference

License Agreement for Machine Code
8239 Token-Ring Stackable Hub Quick Reference
Caution: Safety Information - Read This First
Network Management
README file

trial offer

(this book)

 Copyright IBM Corp. 1998 2-1

Installing Features

The following features may be installed in the 8239:

¹ Optical Fiber RI/RO Module (Model 1 only)
¹ RJ-45 RI/RO Module (Model 1 only)
¹ 16-Port Expansion Feature

For instructions for the installation of these features, go to Chapter 3, Installing
Features.

Placing the 8239

The 8239 can be placed on a tabletop or installed in a customer-supplied rack.
If you are installing this 8239 in a rack, go to “Rack-Mounting the 8239.” Otherwise,

continue with “Surface-Mounting the 8239.”

Surface-Mounting the 8239

Place the 8239 on a flat horizontal surface sturdy enough to support its weight. The
8239 is not designed for vertical mounting.

Continue with “Connecting the Cables” on page 2-4.

Rack-Mounting the 8239

The 8239 can be installed in a standard, open, EIA 19–in. rack in a wiring-closet
environment.

2-2 8239 Setup and User’s Guide