Cabletron Systems 6H133-37, 6H123-50 User Manual

6H123-50 and 6H133-37 MicroLAN

SmartSwitch 6000 Interface Modules

User’s Guide

Ethernet

6H123-50

CPU

C

C

O

O

N

N

N

N

1

1

C

C

O

O

N

N

N

N

2

2

Ethernet

6H133-37

C

C

C

C

C

CPU

C

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

3

2

1

3

2

1

10

10

C

C

C

C

C

C

O

O

O

O

O

O

COM

N

N

N

N

N

N

N

N

N

N

N

N

1

2

3

1

2

3

100

100

1

1

C

C

O

O

N

N

N

N

3

3

12

12

1

12

C

C

C

C

C

C

C

C

O

O

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

4

3

2

1

4

3

2

1

10

10

C

C

C

C

C

C

C

C

COM

O

O

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

4

3

2

1

4

3

2

1

100

100

1

12

1

12

1

C

C

O

O

N

N

N

N

3

3

12

1

C

C

O

O

N

N

N

N

4

4

12

C

C

O

O

N

N

N

N

1

1

C

C

O

O

N

N

N

N

2

2

9032276-04

5

6

Only qualified personnel should perform installation
procedures.

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.



1998 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America

Order Number: 9032276-04 September 1998

Cabletron Systems, SPECTRUM, LANVIEW, QuickSET, S

trademarks and
All other product names mentioned in this manual may be trademarks or registered trademarks of

their respective companies.

SecureFast Switching

and

SmartSwitch

ecureFast

are trademarks of Cabletron Systems, Inc.

, and

BRIM

are registered

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:

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:

party responsible for compliance could void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital

Changes or modifications made to this device which are not expressly approv ed by the

6H123-50 and 6H133-37 User’s Guide i

Printed on Recycled Paper

Notice

INDUSTRY CANADA 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.

VCCI NOTICE

This is a Class A product based on the standard of the Voluntary Control Council for Interference by
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment,
radio disturbance may arise. When such trouble occurs, the user may be required to take corrective
actions.

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT

IMPORTANT:

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, PR OMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

Before utilizing this product, carefully read this License Agreement.

ii 6H123-50 and 6H133-37 User’s Guide

CABLETRON SOFTWARE PROGRAM LICENSE

Notice

1. LICENSE

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 LA W. 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.

. You have the right to use only the one (1) copy of the Program provided in this

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY

1. EXCLUSION OF

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 EXPRESSED OR IMPLIED, INCLUDING
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE
ACCOMPANYING WRITTEN MA TERIALS, AND ANY A CCOMPANYING HARDW ARE.

WARRANTY. Except as may be specifically provided by Cabletron in

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 WARRANTIES, IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.

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 03867-0505.

6H123-50 and 6H133-37 User’s Guide iii

Notice

SAFETY INFORMATION

CLASS 1 LASER TRANSCEIVERS

THE FE-100F3 FAST ETHERNET INTERFACE MODULE, FPIM-05 AND

FPIM-07 FDDI PORT INTERFACE MODULES, AND APIM-29 ATM

PORT INTERFACE MODULE USE CLASS 1 LASER TRANSCEIVERS.

READ THE FOLLOWING SAFETY INFORMATION BEFORE

INSTALLING OR OPERATING THESE MODULES.

The Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation limits. This
control loop eliminates the need for maintenance checks or adjustments. The output is factory set, and
does not allow any user adjustment. Class 1 Laser transceivers comply with the following safety
standards:

• 21 CFR 1040.10 and 1040.11 U.S. Department of Health and Human Services (FDA).

• IEC Publication 825 (International Electrotechnical Commission).

• CENELEC EN 60825 (European Committee for Electrotechnical Standardization).
When operating within their performance limitations, laser transceiver output meets the Class 1

accessible emission limit of all three standards. Class 1 levels of laser radiation are not considered
hazardous.

SAFETY INFORMATION

CLASS 1 LASER TRANSCEIVERS

LASER RADIATION AND CONNECTORS

When the connector is in place, all laser radiation remains within the fiber. The maximum amount of
radiant power exiting the fiber (under normal conditions) is -12.6 dBm or 55 x 10-6 watts.

Removing the optical connector from the transceiver allows laser radiation to emit directly from the
optical port. The maximum radiance from the optical port (under worst case conditions) is

0.8 W cm-2 or 8 x 103 W m2 sr-1.

Do not use optical instruments to view the laser output. The use of optical instruments to view
laser output increases eye hazard. When viewing the output optical port, power must be
removed from the network adapter.

iv 6H123-50 and 6H133-37 User’s Guide

DECLARATION OF CONFORMITY

Notice

Application of Council Directive(s):

Manufacturer’s Name:

Manufacturer’ s Address:

European Representative Name:

European Representative Address:

Conformance to Directive(s)/Product Standards:

Equipment Type/Environment:

89/336/EEC
73/23/EEC

Cabletron Systems, Inc.
35 Industrial Way

PO Box 5005
Rochester, NH 03867

Mr. J. Solari
Cabletron Systems Limited

Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England

EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950

Networking Equipment, for use in a
Commercial or Light
Environment.

Industrial

We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged
with this notice conforms to the above directives.

Manufacturer Legal Representative in Europe
Mr. Ronald Fotino Mr. J. Solari

___________________________________ ___________________________________

Full Name Full Name
Principal Compliance Engineer Managing Director - E.M.E.A.

___________________________________ ___________________________________

Title Title
Rochester, NH, USA Newbury, Berkshire, England

___________________________________ ___________________________________

Location Location

6H123-50 and 6H133-37 User’s Guide v

Notice

vi 6H123-50 and 6H133-37 User’s Guide

CONTENTS

CHAPTER 1 INTRODUCTION

1.1 Using This Guide.........................................................................1-1

1.2 Structure of This Guide................................................................1-2

1.3 Overview......................................................................................1-3

1.3.1 Connectivity ....................................................................1-5

1.3.2 Full Duplex Switched Ethernet........................................ 1-6

1.3.3 Auto-Negotiation.............................................................1-6

1.3.4 SmartTrunking ................................................................1-6

1.3.5 Management................................................................... 1-7

1.3.6 Switching Options...........................................................1-7

1.3.7 Standards Compatibility.................................................. 1-7

1.3.8 LANVIEW Diagnostic LEDs............................................1-8

1.3.9 Year 2000 Compliant......................................................1-8

1.3.10 Runtime IP Address Discovery.......................................1-8

1.3.11 Local Management Features..........................................1-9

1.4 Optional Features........................................................................1-9

1.5 Document Conventions.............................................................1-11

1.6 Getting Help...............................................................................1-12

1.7 Related Manuals........................................................................1-13

CHAPTER 2 NETWORK REQUIREMENTS

2.1 SmartTrunk..................................................................................2-1

2.2 10BASE-T Network .....................................................................2-1

2.3 100BASE-TX Network.................................................................2-2

2.4 100BASE-FX Fiber Optic Network ..............................................2-2

CHAPTER 3 INSTALLATION

3.1 Required Tools............................................................................3-1

3.2 Unpacking the 6H123-50 and 6H133-37.....................................3-1

3.3 Options........................................................................................3-2

3.4 Installing the 6H123-50 and 6H133-37 into the 6C105 Chassis..3-2

3.5 Connecting to the Network..........................................................3-5

3.5.1 Connecting UTP Cables .................................................3-6

3.5.2 Connecting a Twisted Pair Segment to the FE-100TX...3-7

3.5.3 Connecting a Fiber Optic Segment to the

FE-100FX and FE-100F3 ...............................................3-9

6H123-50 and 6H133-37 User’s Guide vii

Contents

CHAPTER 4 TROUBLESHOOTING

4.1 Using LANVIEW...........................................................................4-1

4.2 FE-100TX LED.............................................................................4-6

4.3 Troubleshooting Checklist............................................................4-7

4.4 Using the RESET Button .............................................................4-8

CHAPTER 5 LOCAL MANAGEMENT

5.1 Overview......................................................................................5-1

5.2 Local Management Keyboard Conventions.................................5-3

5.3 Management Terminal Setup.......................................................5-4

5.3.1 Console Cable Connection..............................................5-5

5.3.2 Management Terminal Setup Parameters ......................5-6

5.3.3 Telnet Connections .........................................................5-7

5.3.4 Monitoring an Uninterruptible Power Supply...................5-8

5.4 Accessing Local Management...................................................5-10

5.4.1 Navigating Local Management Screens........................5-11

5.4.2 Selecting Local Management Menu Screen Items........5-13

5.4.3 Exiting Local Management Screens..............................5-13

5.5 Main Menu Screen.....................................................................5-15

5.6 Chassis Menu Screen................................................................5-16

5.7 Chassis Configuration Screen ...................................................5-18

5.7.1 Setting the Subnet Mask...............................................5-21

5.7.2 Setting the IP Address...................................................5-21

5.7.3 Setting the Chassis Date...............................................5-23

5.7.4 Setting the Chassis Time ..............................................5-24

5.7.5 Entering a New Screen Refresh Time...........................5-24

5.7.6 Setting the Screen Lockout Time..................................5-25

5.8 SNMP Community Names Screen.............................................5-26

5.8.1 Establishing Community Names ...................................5-28

5.9 SNMP Traps Screen..................................................................5-29

5.9.1 Configuring the Trap Table............................................5-30

5.10 Chassis Environmental Information Screen...............................5-31

5.11 Port Redirect Function Screen...................................................5-32

5.11.1 Displaying the Source and Destination Entries.............5-34

5.11.2 Changing Source and Destination Ports.......................5-35

5.12 Module Selection Screen...........................................................5-36

5.12.1 Selecting a Module........................................................5-37

5.13 Module Menu Screen.................................................................5-38

5.14 Module Configuration Menu Screen ..........................................5-40

viii 6H123-50 and 6H133-37 User’s Guide

Contents

5.15 General Configuration Screen...................................................5-42

5.15.1 Setting the IP Address..................................................5-45

5.15.2 Setting the Subnet Mask............................................... 5-47

5.15.3 Setting the Default Gateway.........................................5-48

5.15.4 Setting the TFTP Gateway IP Address.........................5-48

5.15.5 Setting the Module Date ...............................................5-49

5.15.6 Setting the Module Time...............................................5-50

5.15.7 Entering a New Screen Refresh Time ..........................5-50

5.15.8 Setting the Screen Lockout Time.................................. 5-51

5.15.9 Setting the Operational Mode.......................................5-52

5.15.10Setting the Management Mode..................................... 5-53

5.15.11Configuring the COM Port ............................................5-54

5.15.11.1 Changing the COM Port Application ............5-56

5.15.12Clearing NVRAM ..........................................................5-57

5.15.13Enabling/Disabling IP Fragmentation ...........................5-58

5.16 SNMP Community Names Screen............................................5-58

5.16.1 Establishing Community Names...................................5-60

5.17 SNMP Traps Screen..................................................................5-62

5.17.1 Configuring the Trap Table...........................................5-63

5.18 Switch Configuration Screen.....................................................5-64

5.18.1 Setting the STA............................................................. 5-67

5.18.2 Setting the Age Time ....................................................5-67

5.18.3 Setting (Enabling or Disabling) the Port Status ............5-68

5.19 Module Specific Configuration Screen ......................................5-68

5.20 System Resources Screen........................................................5-70

5.20.1 Setting the Reset Peak Utilization ................................5-72

5.21 High Speed Interface Configuration Screen (6H123-50 Only) ..5-72

5.21.1 Configuring an FE-100FX or FE-100F3........................5-75

5.21.1.1 Setting the FE-100FX or FE-100F3

Operational Mode.........................................5-75

5.21.2 Configuring an FE-100TX.............................................5-76

5.21.2.1 Setting the FE-100TX Operational Mode.....5-76

5.21.2.2 Setting the FE-100TX Advertised Ability......5-76

5.22 Flash Download Screen ............................................................5-77

5.22.1 Image File Download Using TFTP................................5-80

5.22.2 Image File Download Using Runtime ...........................5-80

5.22.3 Image File Download Using BootP...............................5-81

5.23 Port Redirect Function Screen ..................................................5-82

5.23.1 Displaying the Source and Destination Entries............. 5-84

5.23.2 Changing Source and Destination Ports....................... 5-85

5.24 Broadcast Suppression Screen.................................................5-86

5.24.1 Setting the Threshold.................................................... 5-88

5.24.2 Setting the Reset Peak Switch .....................................5-88

6H123-50 and 6H133-37 User’s Guide ix

Contents

5.25 VLAN Main Menu (802.1Q) Screen...........................................5-89

5.26 Repeater Configuration Menu Screen .......................................5-90

5.27 Repeater Port Configuration Screen..........................................5-92

5.27.1 Setting the Port Operating Mode...................................5-94

5.27.2 Enabling /Disabling Ports..............................................5-95

5.27.3 Setting All Ports.............................................................5-95

5.27.4 Enabling/Disabling Network Ports.................................5-96

5.28 Module Level Security Configuration.........................................5-96

5.28.1 Setting the Module Level Security.................................5-99

5.29 Port Level Security Configuration Screen................................5-100

5.29.1 Setting the Port Level Security....................................5-103

5.30 Module Statistics Menu Screen ...............................................5-104

5.31 Switch Statistics Screen...........................................................5-106

5.32 Interface Statistics Screen.......................................................5-108

5.32.1 Displaying Interface Statistics .....................................5-111

5.32.2 Using the Clear Counters Command ..........................5-112

5.33 RMON Statistics Screen..........................................................5-112

5.33.1 Displaying RMON Statistics ........................................5-116

5.33.2 Using the Clear Counters Command ..........................5-116

5.34 Repeater Statistics Screen ......................................................5-117

5.34.1 Displaying Network Statistics......................................5-120

5.34.2 Displaying Repeater Statistics ....................................5-120

5.34.3 Using the Clear Counters Command ..........................5-121

5.35 Network Tools..........................................................................5-121

5.35.1 Built-in Commands......................................................5-123

5.35.2 Special Commands.....................................................5-132

APPENDIX A SPECIFICATIONS

A.1 Device Specifications.................................................................. A-1

A.2 Physical Properties..................................................................... A-1

A.3 Environmental Requirements...................................................... A-1

A.4 Input/Output Ports....................................................................... A-2

A.5 COM Port Pinout Assignments................................................... A-2

A.6 Regulatory Compliance............................................................... A-3

APPENDIX B FE-100TX, FE-100FX AND FE-100F3

SPECIFICATIONS

B.1 FE-100TX.................................................................................... B-1

B.2 FE-100FX.................................................................................... B-2

B.3 FE-100F3.................................................................................... B-3

x 6H123-50 and 6H133-37 User’s Guide

Contents

APPENDIX C OPTIONAL INSTALLATIONS AND

MODE SWITCH BANK SETTINGS

C.1 Required Tools............................................................................C-1

C.2 Setting the Mode Switches..........................................................C-1

C.3 Installing Optional Fast Ethernet Interface Modules....................C-4

INDEX

6H123-50 and 6H133-37 User’s Guide xi

Contents

xii 6H123-50 and 6H133-37 User’s Guide

CHAPTER 1

INTRODUCTION

W elcome to the Cabletron Systems

SmartSwitch 6000 Interface Modules User’s Guide

6H123-50 and 6H133-37 MicroLAN

. This guide
describes the 6H123-50 and 6H133-37 interface modules and provides
information concerning network requirements, installation,
troubleshooting, and Local Management.

1.1 USING THIS GUIDE

Read through this guide completely to understand the interface module
features, capabilities, and Local Management functions. A general
working knowledge of Ethernet and IEEE 802.3 type data
communications networks and their physical layer components is helpful
when using these devices.

Unless noted differently, the inf ormation in this guide applies to

NOTE

both SmartSwitch 6000 interface modules, which are referred
to as either the “6H123-50 and 6H133-37” or the “modules”.

6H123-50 and 6H133-37 User’s Guide 1-1

Chapter 1:

Introduction

1.2 STRUCTURE OF THIS GUIDE

This guide is organized as follows:

Chapter 1,

Introduction

, outlines the contents of this manual, describes
the features of the 6H123-50 and 6H133-37, provides instructions on
obtaining additional help and concludes with a list of related manuals.

Chapter 2,

Network Requirements

, explains the network requirements
to consider before installing the 6H123-50 and 6H133-37 into the 6C105
SmartSwitch 6000 chassis.

Chapter 3,

Installation

, provides instructions on how to install the

modules in the chassis and connect segments to the devices.

Chapter 4,

Troubleshooting

, details the 6H123-50 and 6H133-37
LANVIEW LEDs that enable you to quickly diagnose
network/operational problems.

Chapter 5,

Local Management

, describes accessing Local Management
and using the Local Management screens to manage the 6H123-50 and
6H133-37 modules, and the 6C105 chassis.

Appendix A,

Specifications

, contains information on functionality and
operating specifications, connector pinouts, environmental requirements,
and physical properties.

Appendix B,

FE-100TX, FE-100FX and FE-100F3 Specifications

,
contains information about FE-100TX pinouts and information
concerning cable types used with the FE-100FX and FE-100F3.

Appendix C,

Optional Installations and Mode Switch Bank Settings

,
describes how to install optional Fast Ethernet Interf ace Modules and how
to set the Mode Switches.

1-2 6H123-50 and 6H133-37 User’s Guide

Overview

1.3 OVERVIEW

The 6H123-50 and 6H133-37, shown in Figure 1-1, are interface modules
for the Cabletron Systems 6C105 SmartSwitch 6000 chassis.

The 6H123-50 and 6H133-37 are high-speed network repeater/switch
devices. The 6H123-50 provides four Ethernet repeated segments and
four Fast Ethernet repeated segments (CONN 1 through CONN 4). The
6H133-37 provides three Ethernet repeated segments and three Fast
Ethernet repeated segments (CONN 1 through CONN 3). The RJ21
connectors each consist of 12 repeater ports that are able to reside on the
Ethernet (10 Mbps) or the Fast Ethernet (100 Mbps) segment. Each
Ethernet and Fast Ethernet segment supports 802.1D switching
(bridging), Cabletron Systems SecureFast Switching Virtual Network
technology and IEEE 802.1Q Port Based VLANs.

Slots 5 and 6 (interfaces 9 and 10) of the 6H123-50 support optional Fast
Ethernet Interface Modules providing uplinks to 100BASE-TX or
100BASE-FX Fast Ethernet networks. The 6H133-37 is capable of being
equipped with a High Speed Interface Module (HSIM) that provides for
additional connectivity to other high speed networking technologies such
as Asynchronous Transfer Mode (ATM), Fiber Distributed Data Interface
(FDDI) and Wide Area Network (WANs).

The 6H123-50 and 6H133-37 switch each Ethernet and Fast Ethernet
segment (CONN 1 through CONN 4 and CONN 1 through CONN 3) to
one another and to the optional Fast Ethernet Interface modules of the
6H123-50 or an HSIM installed in the 6H133-37.

6H123-50 and 6H133-37 User’s Guide 1-3

Chapter 1:

Introduction

Ethernet

6H123-50

CPU

C

C

O

O

N

N

N

N

1

1

C

C

O

O

N

N

N

N

2

2

Ethernet

6H133-37

C

C

C

C

C

C

C

C

O

O

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

1

2

3

4

1

2

3

4

10

10

C

C

C

C

C

C

C

COM

1

C

O

O

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

1

2

3

4

1

2

3

4

100

100

1

C

C

O

O

N

N

N

N

3

3

COM Ports

Ethernet/Fast Ethernet
Interfaces

1 - 8

CPU

C

C

O

O

N

N

N

N

1

1

1

COM

C

C

C

C

C

C

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

1

2

3

1

2

3

10

10

C

C

C

C

C

C

O

O

O

O

O

O

N

N

N

N

N

N

N

N

N

N

N

N

1

2

3

1

2

3

100

100

1

C

C

O

O

N

N

N

N

3

3

1 - 6

12

1

12

1

C

C

O

O

N

N

N

N

4

4

12

1

C

C

O

O

N

N

N

N

2

2

12

12

12

12

Fast Ethernet Interface
Module Slots
(Slots 5 and 6)

5

6

HSIM Slot

2276-01

Figure 1-1 The 6H123-50 and 6H133-37

1-4 6H123-50 and 6H133-37 User’s Guide

Table 1-1 shows the port organization for both modules.

Table 1-1 Port Organization

6H123-50 6H133-37

Overview

CONN 1 = Network Port 1, 10 Mbps

Network Port 2, 100 Mbps

CONN 2 = Network Port 3, 10 Mbps

Network Port 4, 100 Mbps

CONN 3 = Network Port 5, 10 Mbps

Network Port 6, 100 Mbps

CONN 4 = Network Port 7, 10 Mbps

Network Port 8, 100 Mbps
Fast Ethernet Slot 5 = Port 9
Fast Ethernet Slot 6 = Port 10

CONN 1 = Network Port 1, 10 Mbps

Network Port 2, 100 Mbps

CONN 2 = Network Port 3, 10 Mbps

Network Port 4, 100 Mbps

CONN 3 = Network Port 5, 10 Mbps

Network Port 6, 100 Mbps

HSIM = Port 7

1.3.1 Connectivity

The 6H123-50 and 6H133-37 connect to Ethernet/Fast Ethernet networks
or workstations through RJ21 ports on the front panel. Each port supports
a 25-pair cable at lengths up to 100 meters (each pair must be Category 5
compliant with an impedance of 85 to 111 ohms). The ports are IEEE

802.3 10BASE-T and IEEE 802.3u 100BASE-TX compliant.
The 6H123-50 has two front panel slots (connectors 5 and 6 or interfaces

9 and 10) for optional Fast Ethernet Interface Modules to support an
uplink to Fast Ethernet backbones or a high speed connection to a local
server.

The 6H133-37 has one front panel slot for an optional High Speed
Interface Module (Interface 7) to provide for additional connectivity to
other high speed networking technologies such as ATM, FDDI, and
WANs.

Cables available for 100BASE-TX operation include the following:

•

180° angle connector (straight-through RJ21-to-RJ21)

•

180° RJ21-to-RJ45 connector

•

120° angle connector with the same options

6H123-50 and 6H133-37 User’s Guide 1-5

Chapter 1:

Introduction

1.3.2 Full Duplex Switched Ethernet

The optional Fast Ethernet Interface Modules for the 6H123-50 can be
configured to operate in Full Duplex Switched Ethernet mode, which
provides up to 200 Mbps of bandwidth.

1.3.3 Auto-Negotiation

The repeater ports and Fast Ethernet Interface Modules can auto-negotiate
the type of connection required to provide a link to another device.
During Auto-Negotiation, two devices automatically exchange
information “telling” each other what their operating capabilities are. The
Auto-Negotiation feature targets the maximum capabilities that can be
reached between the two devices. For example, an FE-100TX Fast
Ethernet Interface Module in a 6H123-50 can adjust to 100 Mbps when
the device on the other end of the connection can also adjust to 100 Mbps.
If the device on the other end of the connection can only operate at
10 Mbps, then the FE-100TX simply adjusts to 10 Mbps operation.

When Auto-Negotiation is supported at both ends of a link, the two
devices dynamically adjust to full or half duplex operation based on the
maximum capability that can be reached between the two devices. If the
device connected to the FE-100TX cannot auto-negotiate, the FE-100TX
Fast Ethernet Interface Module operates according to the capabilities of
the other device.

1.3.4 SmartTrunking

SmartTrunk, also referred to as SmartTrunking, is Cabletron Systems’
terminology for load balancing or load sharing. SmartTrunk technology
provides an easy-to-implement mechanism to group, or aggregate,
multiple physical links together to scale the backbone bandwidth beyond
the limitations of a single link. All links are user-configurable so
administrators can scale the backbone bandwidth by adding SmartTrunk
links. The SmartTrunk benefits are as follows:

•

All purchased bandwidth is used.

•

Distributed, resilient links increase reliability and performance.

•

Multiple technologies are supported within a single trunk for
maximum flexibility.

1-6 6H123-50 and 6H133-37 User’s Guide

Overview

For more information about SmartTrunk, refer to the Cabletron Systems

SmartTrunk User’s Guide

.

1.3.5 Management

Management of the 6H123-50 and 6H133-37 is accomplished using
SNMP compliant management tools for in-band Local Management.
Out-of-band Local Management is provided through the RJ45 COM port
on the front panel using a VT100 terminal or a VT100 terminal emulator.
In-band remote management is possible through any SNMP compliant
Network Management Software.

Local Management provides the ability to manage the 6H123-50 and
6H133-37 and any of the optional Fast Ethernet Interface Modules
installed in slots 5 and 6 of the 6H123-50, or an optional High Speed
Interface Module (HSIM) in a 6H133-37.

The associated HSIM user’s guide provides detailed information about
the HSIM Local Management.

1.3.6 Switching Options

The 6H123-50 and 6H133-37 provide 802.1D switching, 802.1Q
switching or SecureFast Switching Virtual Network Services between all
of the front panel interfaces including Fast Ethernet Interface Modules
installed in a 6H123-50 or an HSIM installed in a 6H133-37.

IEEE 802.1Q switching and SecureFast switching allow for future
migration to Virtual Network technologies without requiring the
replacement of existing equipment.

1.3.7 Standards Compatibility

The 6H123-50 and 6H133-37 are fully compliant with the IEEE 802.3
standard and the IEEE 802.3u standard. The optional Fast Ethernet
Interface Modules are fully compliant with the IEEE 802.3u standard.
The 6H123-50 and 6H133-37 provide IEEE 802.1D Spanning Tree
Algorithm (STA) support to enhance the overall reliability of the network
and protect against “loop” conditions. The 6H123-50 and 6H133-37
support a wide variety of industry standard MIBs including RFC 1213
(MIB II), RFC 1757 (RMON), RFC 1493 (Bridge MIB) and RFC 1354
(FIB MIB). A full suite of Cabletron Systems Enterprise MIBs provide a
wide array of statistical information to enhance troubleshooting.

6H123-50 and 6H133-37 User’s Guide 1-7

Chapter 1:

Introduction

1.3.8 LANVIEW Diagnostic LEDs

LANVIEW diagnostic LEDs serve as an important troubleshooting aid by
providing an easy way to observe the status of indi vidual ports and ov erall
network operations. Chapter 4 provides details about the 6H123-50 and
6H133-37 LANVIEW LEDs.

1.3.9 Year 2000 Compliant

These products have an internal clock that can maintain the current time
and date beyond the year 1999.

1.3.10 Runtime IP Address Discovery

This feature enables the 6H123-50 and 6H133-37 to automatically accept
an IP address from a Boot Strap Protocol (BootP) or Reverse Address
Resolution Protocol (RARP) server on the network into NVRAM without
requiring a user to enter an IP address through Local Management.

When the 6H123-50 and the 6H133-37 are connected to the network and
powered up, Runtime IP Address Discovery (RAD) checks the 6H123-50
and the 6H133-37 for an IP address. If one has not yet been assigned
(6H123-50 and 6H133-37 IP address set to 0.0.0.0), RAD checks to see if
any of the interfaces have a link. If so, RAD sends out Reverse Address
Resolution Protocol (RARP) and BootP requests to obtain an IP address
from a BootP server on the network.

The RAD requests start out at an interval of 1 second. The interval then
doubles after every transmission until an interval of 300 seconds is
reached. At this point, the interval remains at 300 seconds. The RAD
requests continue until an IP address is received from a BootP server, or
an IP address is entered using Local Management.

1-8 6H123-50 and 6H133-37 User’s Guide

Optional Features

1.3.11 Local Management Features

Local Management provides the tools that allow management of the
6H123-50 and 6H133-37, the Fast Ethernet Interface Modules, the High
Speed Interface Module (HSIM) and the 6C105 chassis. It also allows the
following tasks to be performed:

•

Manage any module installed in the 6C105 via a single terminal
connection.

•

Assign an IP address and subnet mask to the 6H123-50, 6H133-37 and
6C105 chassis.

•

Select a default gateway.

•

Control local and remote access.

•

Designate workstations to receive SNMP traps from the 6H123-50
module, 6H133-37 module, or the 6C105 chassis.

•

Configure module specific SNMP MIB objects including the IETF
Bridge MIB objects.

Chapter 5 provides detailed information about Local Management of the

6H123-50 and 6H133-37, the optional Fast Ethernet Interface Modules
and the 6C105 chassis. The associated High Speed Interface Module
user’s guide provides detailed information about Local Management of
the applicable HSIM.

1.4 OPTIONAL FEATURES

Options for the 6H123-50 and 6H133-37 are Fast Ethernet Interface
Modules and High Speed Interface Modules, which add remote uplink
capability.

Cabletron Systems provides Fast Ethernet Interface Modules for the
6H123-50 to support uplinks to 100 Mbps Fast Ethernet backbones or
high speed connections to local servers. The Fast Ethernet Interface
Modules are listed in Table 1-2.

6H123-50 and 6H133-37 User’s Guide 1-9

Chapter 1:

P/N Connector Application

FE-100TX

Introduction

Table 1-2 Fast Ethernet Interface Modules

Supports Shielded Twisted Pair (STP), and
Uses RJ45
connector

Category 5 Unshielded Twisted Pair (UTP)

cabling, which has an impedance of 85 to

111 ohms.

FE-100FX

FE-100F3

Uses SC
connector

Uses SC
connector

Supports multimode fiber optic cabling.

Supports single mode fiber optic cabling.

High Speed Interface Modules (HSIMs) are available from Cabletron
Systems for the 6H133-37 to provide additional connectivity to other high
speed networking technologies such as Asynchronous Transfer Mode
(ATM), Wide Area Networks (WANs) and Fiber Distributed Data
Interface (FDDI). The HSIMs a vailable for the 6H133-37 are listed in the
Release Notes.

1-10 6H123-50 and 6H133-37 User’s Guide

Document Conventions

1.5 DOCUMENT CONVENTIONS

The following conventions are used throughout this document:

Note symbol. Calls the reader’s attention to any item of

NOTE

TIP

!

CAUTION

information that may be of special importance.

Tip symbol. Conveys helpful hints concerning procedures or
actions.

Caution symbol. Contains information essential to avoid
damage to the equipment.

Electrical Hazard Warning symbol. Warns against an action
that could result in personal injury or death due to an electrical
hazard.

6H123-50 and 6H133-37 User’s Guide 1-11

Chapter 1: Introduction

1.6 GETTING HELP

For additional support related to this device or document, contact the
Cabletron Systems Global Call Center:

World Wide Web http://www .cabletron.com/
Phone [phone]
Internet mail [e-mail]
FTP ftp://ftp.cabletron.com/

Login
Password

To send comments or suggestions concerning this document, contact the
Cabletron Systems Technical Writing Department via the following
email address: [e-mail]

Make sure to include the document Part Number in the email message.

anonymous
your email address

Before calling the Cabletron Systems Global Call Center, have the
following information ready:

• Your Cabletron Systems service contract number

• A description of the failure

• A description of any action(s) already taken to resolve the problem

(e.g., changing mode switches, rebooting the unit, etc.)

• The serial and revision numbers of all involved Cabletron Systems

products in the network

• A description of your network environment (layout, cable type, etc.)

• Network load and frame size at the time of trouble (if known)

• The device history (i.e., have you returned the device before, is this a

recurring problem, etc.)

• Any previous Return Material Authorization (RMA) numbers

1-12 6H123-50 and 6H133-37 User’s Guide

Related Manuals

1.7 RELATED MANUALS

The following manuals may help to set up, control, and manage the
2H23-50R and 2H33-37R:

Cabletron Systems HSIM-A6DP User’s Guide
Cabletron Systems HSIM-F6 User’s Guide
Cabletron Systems HSIM-FE6 User’s Guide
Cabletron Systems HSIM-W87 User’s Guide
Cabletron Systems HSIM-G01/G09 User’s Guide
Cabletron Systems Ethernet Technology Guide
Cabletron Systems Cabling Guide
Cabletron Systems Port Based VLAN User’s Guide
Cabletron Systems SmartTrunk User’s Guide
These manuals can be obtained from the World Wide Web in Adobe

Acrobat Portable Document Format (PDF) at the following site:

http://www.cabletron.com/

All documentation for the Cabletron Systems SecureF ast VLAN

NOTE

Manager software is contained on the VLAN Manager
CD-ROM.

Documents for the Cabletron Systems HSIM-W6 and
HSIM-W84 devices are contained on the QuickSET CD-ROM
and are also available on the World Wide Web at:
http://www.cabletron.com/

6H123-50 and 6H133-37 User’s Guide 1-13

Chapter 1: Introduction

1-14 6H123-50 and 6H133-37 User’s Guide

CHAPTER 2

NETWORK REQUIREMENTS

This chapter contains networking guidelines. Before installing and using
the 6H123-50 and 6H133-37 or an optional Fast Ethernet Interface
Module (FE-100TX, FE-100FX, or FE-100F3), review the requirements
and specifications outlined in this chapter concerning the following:

• SmartTrunk (Section 2.1)

• 10BASE-T Twisted Pair Network (Section 2.2)

• 100BASE-TX Twisted Pair Network (Section 2.3)

• 100BASE-FX Fiber Optic Network (Section 2.4)

The network installation must meet the guidelines to ensure satisfactory
performance of this equipment. Failure to follow the guidelines may
produce poor network performance.

NOTE

The Cabletron Systems

User’s Guide

the Cabletron Systems World Wide Web
site: http://www.cabletron.com/

, referred to in the f ollowing sections , is located on

Cabling Guide

and the

SmartTrunk

2.1 SmartTrunk

To connect the 6H123-50 and 6H133-37 to a network so they can take
advantage of the SmartTrunk feature, there are certain rules concerning
port connections and configurations that must be followed for proper
operation. Refer to the Cabletron Systems SmartTrunk User’s Guide for
additional information.

2.2 10BASE-T NETWORK

When connecting a 10BASE-T segment to any ports of CONN 1 through
CONN 4 (6H123-50) or CONN 1 through CONN 3 (6H133-37), ensure
that the network meets the IEEE 802.3 Ethernet network requirements for
10BASE-T. Refer to the Cabletron Systems Cabling Guide for details.

6H123-50 and 6H133-37 User’s Guide 2-1

Chapter 2: Network Requirements

2.3 100BASE-TX NETWORK

When connecting a 100BASE-T segment to any ports of CONN 1
through CONN 4 (6H123-50), CONN 1 through CONN 3 (6H133-37), or
an FE-100TX installed in slot 5 or 6 of the 6H123-50, the device at the
other end of the twisted pair segment must meet IEEE 802.3u
100BASE-TX Fast Ethernet network requirements for the devices to
operate at 100 Mbps. Refer to the Cabletron Systems Cabling Guide for
details.

The 6H123-50 with an FE-100TX installed is capable of

NOTE

operating at either 10 or 100 Mbps. The FE-100TX can
automatically sense the speed of the other device and adjust
its speed accordingly.

If operating at 100 Mbps, each pair in a cable must be
Category 5 compliant with an impedance of 85 to 111 ohms.

2.4 100BASE-FX FIBER OPTIC NETWORK

Slots 5 and 6 of the 6H123-50 can also support the Cabletron Systems
FE-100FX and FE-100F3 fiber optic interface modules. The de vice at the
other end of the fiber optic segment must meet the 100BASE-FX Fast
Ethernet network requirements to operate at 100 Mbps. Refer to the
Cabletron Systems Cabling Guide for details.

Multimode Mode Fiber Optic Cable Length

The maximum multimode fiber optic cable length of a 100BASE-FX
segment is covered in the Cabletron Systems Cabling Guide.

Single Mode Fiber Cable Lengths

The maximum single mode fiber optic length of a 100BASE-FX se gment
may be no more than 5 km between Data Terminal Equipment (DTE to
DTE) in half duplex mode or 20 km (DTE to DTE) in full duplex mode.

2-2 6H123-50 and 6H133-37 User’s Guide