Cabletron Systems STHI Manuale utente

CABLETRON SYSTEMS, P. O. Box 5005 Rochester, NH 03866-5005

STHI

INTELLIGENT

TOKEN RING STACKABLE HUB

USER’S GUIDE

NOTICE

iii

NOTICE

Cabletron Systems reserves the right to make changes in specifications and other

information contained in this document without prior notice. The reader should in

all cases consult Cabletron Systems to determine whether any such changes have

been made.

The hardware, firmware, or software described in this manual is subject to change

without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY

INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES

WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS)

ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION

CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF,

KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH

DAMAGES.

Cabletron Systems, Inc.

P.O. Box 5005, Rochester, NH 038666-5005

Printed in the United States of America

Order Number: 9031390 May, 1995

SPECTRUM

LANVIEW

Remote LANVIEW

, and

HubSTACK

, STH, STHI, are

trademarks of Cabletron Systems, Inc.

i960 is a registered trademark of Intel Corporation.

DEC and VT100

are trademarks of Digital Equipment Corporation.

CompuServe

is a registered trademark of CompuServe, Inc.

Windows

is a registered trademark of Microsoft Corporation.

Printed On Recycled Pa

per

NOTICE

FCC NOTICE

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.

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 uses,

generates, and can radiate radio frequency energy and if not installed in

accordance with the operator’s manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to

cause interference in which case the user will be required to correct the interference

at his own expense.

WARNING: Changes or modifications made to this device which are not expressly

approved by the party responsible for compliance could void the user’s authority

to operate the equipment.

DOC NOTICE

This digital apparatus does not exceed the Class A limits for radio noise emissions

from digital apparatus set out in the Radio Interference Regulations of the

Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les

limites applicables aux appareils numériques de la class A prescrites dans le

Règlement sur le brouillage radioélectrique édicté par le ministère des

Communications du Canada.

CABLETRON SYSTEMS, INC.

PROGRAM LICENSE AGREEMENT

IMPORTANT: Before utilizing this product, carefully read this License

Agreement.

This document is an agreement between you, the end user, and Cabletron Systems,

Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the

Cabletron software program (the “Program”) contained in this package. The

Program may be contained in firmware, chips or other media. BY UTILIZING THE

ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME BOUND BY THE

TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND THE

LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO

NOT AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN

THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL

REFUND.

NOTICE

CABLETRON SOFTWARE PROGRAM LICENSE

1. LICENSE. You have the right to use only the one (1) copy of the Program

provided in this package subject to the terms and conditions of this License

Agreement.

You may not copy, reproduce or transmit any part of the Program except as

permitted by the Copyright Act of the United States or as authorized in

writing by Cabletron.

2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or

disassemble the Program.

3. APPLICABLE LAW. This License Agreement shall be interpreted and

governed under the laws and in the state and federal courts of New

Hampshire. You accept the personal jurisdiction and venue of the New

Hampshire courts.

EXCLUSION OF WARRANTY

AND DISCLAIMER OF LIABILITY

1. EXCLUSION OF WARRANTY. Except as may be specifically provided by

Cabletron in writing, Cabletron makes no warranty, expressed or implied,

concerning the Program (including Its documentation and media).

CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE

SUPPLIED TO YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES

OF MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE,

WITH RESPECT TO THE PROGRAM, THE ACCOMPANYING WRITTEN

MATERIALS, AND ANY ACCOMPANYING HARDWARE.

2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT

SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES

WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR

LOSS OF BUSINESS, PROFITS, BUSINESS INTERRUPTION, LOSS OF

BUSINESS INFORMATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL,

OR RELIANCE DAMAGES, OR OTHER LOSS) ARISING OUT OF THE USE

OR INABILITY TO USE THIS CABLETRON PRODUCT, EVEN IF

CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION

OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL

DAMAGES, OR ON THE DURATION OR LIMITATION OF IMPLIED

WARRANTEES IN SOME INSTANCES THE ABOVE LIMITATIONS AND

EXCLUSIONS MAY NOT APPLY TO YOU.

NOTICE

UNITED STATES GOVERNMENT

RESTRICTED RIGHTS

The enclosed product (a) was developed solely at private expense; (b) contains

“restricted computer software” submitted with restricted rights in accordance

with Section 52227-19 (a) through (d) of the Commercial Computer Software -

Restricted Rights Clause and its successors, and (c) in all respects is proprietary

data belonging to Cabletron and/or its suppliers.

For Department of Defense units, the product is licensed with “Restricted Rights”

as defined in the DoD Supplement to the Federal Acquisition Regulations, Section

52.227-7013 (c) (1) (ii) and its successors, and use, duplication, disclosure by the

Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the

Rights in Technical Data and Computer Software clause at 252.227-7013. Cabletron

Systems, Inc., 35 Industrial Way. Rochester, New Hampshire 03866

CONTENTS

vii

CHAPTER 1 Introduction

1.1 Contents of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.2 STHI Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.2.1 LANVIEW LEDs . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.2.2 TCU Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

1.2.3 RI & RO Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

1.2.4 Hub-By-Hub Bypass Control . . . . . . . . . . . . . . . . .1-5

1.2.5 Automatic Beacon Recovery Process. . . . . . . . . . .1-5

1.2.6 Support for Passive MAU Workgroups . . . . . . . . .1-5

1.2.7 Flash Downloads. . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

1.2.8 IP Address Discovery . . . . . . . . . . . . . . . . . . . . . . .1-6

1.2.9 Local Management . . . . . . . . . . . . . . . . . . . . . . . . .1-8

1.2.10 Remote Network Management Capabilities. . . . . .1-8

1.3 Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

1.4 Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

CHAPTER 2 Requirements & Specifications

2.1 General Networking Considerations. . . . . . . . . . . . . . . . . .2-1

2.2 Operating Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.2.1 Hubstack Interconnect Cables. . . . . . . . . . . . . . . . .2-3

2.2.2 TCU and COM Ports . . . . . . . . . . . . . . . . . . . . . . .2-3

2.2.3 Supported MIB Groups. . . . . . . . . . . . . . . . . . . . . .2-5

2.2.4 Ring Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.2.5 Ring Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

2.2.6 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.2.7 Computing Hardware . . . . . . . . . . . . . . . . . . . . . . .2-7

2.2.8 Environmental Requirements . . . . . . . . . . . . . . . . .2-7

2.2.9 Physical Specifications . . . . . . . . . . . . . . . . . . . . . .2-7

CHAPTER 3 Installation

3.1 Installing the STHI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

3.1.1 Unpacking the STHI. . . . . . . . . . . . . . . . . . . . . . . .3-1

3.1.2 Stacking the STHI. . . . . . . . . . . . . . . . . . . . . . . . . .3-2

3.1.3 Attaching the Strain Relief Bracket . . . . . . . . . . . .3-2

CONTENTS

viii

3.1.4 Rack-Mounting the STHI . . . . . . . . . . . . . . . . . . . .3-2

3.1.5 Wall-Mounting the STHI . . . . . . . . . . . . . . . . . . . .3-3

3.1.6 Free-Standing Installations . . . . . . . . . . . . . . . . . . .3-5

3.1.7 Connecting the STHI to the Power Source. . . . . . .3-6

3.2 TPIM Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

3.3 Finishing the Installation. . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

CHAPTER 4 Troubleshooting

4.1 LANVIEW LED Signals . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

4.2 Trouble Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

4.3 The Reset Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

4.4 NVRAM Reset Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

CHAPTER 5 Local Management

5.1 Accessing LM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

5.1.1 Dumb Terminal Configuration . . . . . . . . . . . . . . . .5-2

5.1.2 Console Cable Configuration . . . . . . . . . . . . . . . . .5-3

5.1.3 Entering LM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

5.2 Using LM Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4

5.2.1 Working with LM Screens . . . . . . . . . . . . . . . . . . .5-4

5.2.2 Screen Hierarchy. . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

5.2.3 Screen Introductions . . . . . . . . . . . . . . . . . . . . . . . .5-6

5.3 The System Level Screen . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

5.3.1 System Date and System Time. . . . . . . . . . . . . . . .5-8

5.3.2 IP Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

5.3.3 Subnet Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9

5.3.4 Enable IP Address Discovery . . . . . . . . . . . . . . . . .5-9

5.3.5 Enable Beacon Recovery . . . . . . . . . . . . . . . . . . .5-10

5.3.6 MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11

5.3.7 Locally Administered Address . . . . . . . . . . . . . . .5-11

5.4 The SNMP Community Names Screen . . . . . . . . . . . . . .5-11

5.4.1 Community Name. . . . . . . . . . . . . . . . . . . . . . . . .5-12

5.4.2 Access Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

5.5 The SNMP Traps Screen . . . . . . . . . . . . . . . . . . . . . . . . .5-13

CONTENTS

5.5.1 Trap Destination . . . . . . . . . . . . . . . . . . . . . . . . . .5-13

5.5.2 Trap Community Name . . . . . . . . . . . . . . . . . . . .5-13

5.5.3 Enable Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13

5.6 The Chassis Status View Screen. . . . . . . . . . . . . . . . . . . .5-14

5.6.1 The Screen Mode Screen Command. . . . . . . . . . .5-14

5.6.2 Multiplexer Configuration Fields . . . . . . . . . . . . .5-15

5.6.3 Port Configuration Fields . . . . . . . . . . . . . . . . . . .5-16

5.6.4 NEXT and PREVIOUS. . . . . . . . . . . . . . . . . . . . .5-20

5.6.5 ENABLE ALL PORTS. . . . . . . . . . . . . . . . . . . . .5-20

5.6.6 REFRESH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20

5.7 The Component Status Screen . . . . . . . . . . . . . . . . . . . . .5-20

5.8 The Device Statistics Screen. . . . . . . . . . . . . . . . . . . . . . .5-21

5.8.1 Screen Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22

5.8.2 REFRESH 3SEC. . . . . . . . . . . . . . . . . . . . . . . . . .5-22

5.8.3 General Counter Fields (Group 1) . . . . . . . . . . . .5-23

5.8.4 Ring Information Fields (Group 2). . . . . . . . . . . .5-23

5.8.5 Isolating Errors Fields (Group 3) . . . . . . . . . . . . .5-25

5.8.6 Non-Isolating Errors (Group 4) . . . . . . . . . . . . . .5-26

5.9 The SNMP Tool Screen . . . . . . . . . . . . . . . . . . . . . . . . . .5-27

5.9.1 Community Name. . . . . . . . . . . . . . . . . . . . . . . . .5-28

5.9.2 OID Prepend . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28

5.9.3 GET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28

5.9.4 GETNEXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-29

5.9.5 STEP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-29

5.9.6 WALK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-30

5.9.7 CYCLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-30

5.9.8 RECALL-OID. . . . . . . . . . . . . . . . . . . . . . . . . . . .5-30

5.9.9 SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-30

5.9.10 REPEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-31

5.9.11 Firmware Image Downloads. . . . . . . . . . . . . . . . .5-31

Appendix A TPIM Specifications

A.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

A.2 Twisted Pair TPIM Pinouts. . . . . . . . . . . . . . . . . . . . . . . . A-1

A.3 Fiber Optic TPIM Specifications . . . . . . . . . . . . . . . . . . . A-2

CONTENTS

A.3.1 TPIM-F2 for Multimode Fiber . . . . . . . . . . . . . . . A-3

A.3.2 TPIM-F3 for Single Mode Fiber. . . . . . . . . . . . . . A-4

Appendix B Media Specifications

B.1 Unshielded Twisted Pair (UTP) . . . . . . . . . . . . . . . . . . . . .B-1

B.1.1 UTP Cable Categories. . . . . . . . . . . . . . . . . . . . . . .B-1

B.1.2 UTP Lobe Lengths . . . . . . . . . . . . . . . . . . . . . . . . .B-2

B.2 Shielded Twisted Pair (STP). . . . . . . . . . . . . . . . . . . . . . . .B-3

B.2.1 STP Cable Categories. . . . . . . . . . . . . . . . . . . . . . .B-3

B.2.2 STP Lobe Lengths. . . . . . . . . . . . . . . . . . . . . . . . . .B-4

B.2.3 Mixed STP Cable Types. . . . . . . . . . . . . . . . . . . . .B-4

B.3 Single Mode and Multimode Fiber Optic Cabling . . . . . . .B-5

Page 1-1

CHAPTER 1

Introduction

Welcome to the Cabletron Systems

STHI Intelligent Stackable Token

Ring Hub User’s Guide

. Please read through this manual to gain an

understanding of the features and capabilities of the STHI. A general

knowledge of IEEE 802.5 Token Ring communications networks and their

physical layer components will be helpful.

1.1 Contents of This Manual

Chapter 1,

Introduction

, outlines the contents of this manual, describes

STHI features, and offers leads to further information.

Chapter 2,

Requirements & Specifications

, describes installation

requirements, network guidelines, and STHI operating specifications.

Chapter 3,

Installation

, contains instructions for installing the STHI and

making network connections.

Chapter 4,

Troubleshooting

, describes how to use the LANVIEW LED

system to troubleshoot network problems.

Chapter 5,

Local Management

, describes how to use the Local

Management application.

1.2 STHI Overview

The STHI is an SNMP compliant intelligent hub that provides basic

management functionality including port and station control, statistical

error and trap tracking, and enhanced beacon recovery for a Token Ring

LAN. Its front panel TCU (Trunk Connector Unit) ports allow for network

connections to either active stations or passive Multi-Station Access Units

(MAUs) while its TPIM (Token Ring Port Interface Module) ports allow

for ring expansions across a variety of media. Its rear panel HubSTACK

ports provide for ring expansion through connections to multiple STH

non-intelligent hubs. See Figure 1-1.

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