Cabletron Systems 3H02-04 User manual

OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-TX (UTP)
XXXX
SEGMENT 4SEGMENT 3SEGMENT 2
SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-FX
TX RX
SEGMENT 4SEGMENT 3SEGMENT 2SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR
TX RX TX RX TX RX
FAST ETHERNET SWITCH MODULE
(3H02-04 AND 3H08-04)
USER GUIDE

FE Switch Module User Guide i
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 FORANY 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.
 Copyright 1996 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9031874-01 May 1996
All product names mentioned in this manual may be trademarks or registered trademarks of their
respective companies.
Printed on Recycled Paper

Notice
ii FE Switch Module User Guide
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 ClassA 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 equipment is in the 1st Class Category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference
by Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial
and/or industrial areas.
Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be
caused to radios and TV receivers, etc.
Read the instructions for correct handling.

Notice
FE Switch Module User Guide iii
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. IFYOU DO NOT
AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.
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 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 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 WARRANTIES, IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.

Notice
iv FE Switch Module User Guide
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.

FE Switch Module User Guide v
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 Using This manual.......................................................................1-2
1.2 Overview......................................................................................1-3
1.3 3H02-04 FE Switch Module.........................................................1-3
1.3.1 Connectors .....................................................................1-4
1.3.2 LEDs...............................................................................1-4
1.3.3 Offline Button..................................................................1-4
1.4 3H08-04 FE Switch Module.........................................................1-5
1.4.1 Connectors .....................................................................1-5
1.4.2 LEDs...............................................................................1-5
1.4.3 Offline Button..................................................................1-5
1.5 Document Conventions...............................................................1-6
1.6 Related Manuals..........................................................................1-7
1.7 Getting Help.................................................................................1-7
CHAPTER 2 CONNECTING TO THE NETWORK
2.1 Power-Up LED Sequence ...........................................................2-1
2.2 Connecting to a Network.............................................................2-2
2.2.1 Connecting the 3H02-04 FE Switch Module...................2-2
2.2.2 Connecting the 3H08-04 FE Switch Module...................2-3
CHAPTER 3 CONFIGURING
3.1 Connecting the Local Console Manager .....................................3-2
3.2 Local Console Manager commands............................................3-2
CHAPTER 4 MONITORING
4.1 Displaying Switch Module Port Status.........................................4-1
CHAPTER 5 DIAGNOSTICS ANDTROUBLESHOOTING
5.1 Power-Up Tests...........................................................................5-1
5.2 Power-Up Results........................................................................5-1
5.3 Operational Diagnostics ..............................................................5-2
5.4 Diagnostic results........................................................................5-3
5.5 Troubleshooting...........................................................................5-3
5.5.1 If the Module Fails to Power Up......................................5-3
5.5.2 Connectivity Problems....................................................5-4

Contents
vi FE Switch Module User Guide
CHAPTER 6 ADDING/SWAPPING MODULES
6.1 Unpacking the Switch Module......................................................6-1
6.2 Adding a Switch Module ..............................................................6-1
6.3 Swapping a Switch Module..........................................................6-2
APPENDIX A TECHNICAL SPECIFICATIONS
APPENDIX B CABLES
B.1 Types/Connectors.......................................................................B-1
B.2 Cable Specifications ................................................................... B-1
B.3 Fast Ethernet Pin Assignments................................................... B-2
B.3.1 About RJ45 Connectors.................................................. B-2
B.3.2 Crossover Wiring for the 3H02-04..................................B-3
B.3.3 Straight-Through Wiring for the 3H02-04........................ B-4
B.3.4 Limitations & Restrictions ............................................... B-4
B.3.5 Definitions.......................................................................B-4
INDEX

FE Switch Module User Guide Page 1-1
CHAPTER 1
INTRODUCTION
Welcome to Cabletron Systems Fast Ethernet Switch Module ( 3H02-04
and 3H08-04) User Guide
. This manual provides information for
configuring, monitoring, and maintaining the Fast Ethernet (FE) Switch
Modules. The two types of FE Switch Modules are:
•
3H02-04 , 4 port 100TX Switch Module - UTP/RJ45
•
3H08-04 , 4 port 100FX Switch Module - Fiber/ST
• The name FE Switch Module(s) will be used to discuss both types of
modulesthroughout this manual, unless there is a need to call attention
to some characteristic of an individual module.
Figure 1-1 ATX Front Panel
POWER STATUS ENGINE STATUS TURBO STATUS SUPPLY A SUPPLY B 1.6 Gbps
RESET
PACKET PROCESSING ENGINE
NMS PORT POWER
FastNET ATX
TM
OFFLINE
PROC
PWR
OCTAL IEEE 802.3 / ETHERNET 10BASE-T
3X 4X 5X 6X 7X 8X2X1X
SEGMENT LINK
ACT
COL
12345678
OFFLINE
RING 1
RX ST RING 2 RX ST RING 3 RX ST RING 4
RX ST PROC
TX 16 TX 16 TX 16 TX 16 PWR
QUAD IEEE 802.5 TOKEN RING (UTP)
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-FX
TX RX
SEGMENT 4SEGMENT 3SEGMENT 2SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR
TX RX TX RX TX RX
OFFLINE TX PWR
INTELLIGENT FDDI
RING A
RING B
THRU
WRAP RXPROC
FDDI MIC A FDDI MIC BOPTICAL BYPASS
MULTI-MODE MULTI-MODE
OFFLINE
PROCRX
TX PWR
QUADIEEE802.3/ETHERNET10BASE2
SEGMENT4SEGMENT3SEGMENT2SEGMENT1 RX
TX
RX
TX
RX
TX
OFFLINE
PROCRX
TX PWR
QUAD IEEE 802.3 / ETHERNET 10BASE2
SEGMENT 4SEGMENT 3SEGMENT 2SEGMENT 1 RX
TX
RX
TX
RX
TX

Chapter 1: Introduction
Page 1-2 FE Switch Module User Guide
1.1 USINGTHIS MANUAL
Read this manual to gain an understanding of the features and capabilities
of the FE Switch Modules. A general knowledge of Ethernet and IEEE
802.3 type data communications networks and their physical layer
components will be helpful when installing and using these devices.
Chapter 1,
Introduction , outlines the contents of this manual, briefly
describes the features of the modules, related documents, and how to get
help.
Chapter 2,
Connecting to the Network , describes how to physically
attach the module to an Ethernet network.
Chapter 3, Configuring , discusses the software configuration options for
the modules.
Chapter 3, Monitoring , provides information on Ethernet port statistics
obtained through Local Console Manager.
Chapter 4, Diagnostics and Troubleshooting , discusses identifying
possible problems with the module.
Chapter 5, Adding/Swapping Modules , gives instructions for adding and
replacing a module.
Appendix A, Specifications , lists the pertinent technical information
about the modules.
Appendix B, Cables , lists the pertinent cabling information about the
modules.

Overview
FE Switch Module User Guide Page 1-3
1.2 OVERVIEW
Cabletron Systems Fast Ethernet Switch Modules connect the ATX hub
to a maximum of four individual Ethernet IEEE 802.3 Local Area
Networks (LANs). Through the ATX backplane, connectivity to other
Fast Ethernet devices, as well as connectivity to FDDI, Token Ring, and
Ethernet networks is supported.You can configure the module to support
Transparent Spanning Tree, Source Routing, or Source Routing
Transparent Bridging on each of the FDDI, Token Ring, or Ethernet ports
of the ATX. The ATX is also able to translate higher level protocols to
allow communications between end-nodes on Ethernet and end-nodes on
FDDI or Token Ring; protocols translated include TCP/IP, Novel
NetWare, and AppleTalk Phase II.
The switch modules include processing circuitry for receiving and
forwarding data packets between the connected devices. Each module
contains an offline button as well as several light emitting diodes (LEDs)
that indicate the operational status of the module and the individual ports.
You can install the switch modules in any of the five interface slots of the
ATX. Each switch module provides connectivity to four distinct 100 Mb
LANs.
1.3 3H02-04 FE SWITCH MODULE
The 3H02-04 (Figure 1-2) provides connection for four independent
100BASE-TX LANs to the ATX backplane and packet processing engine
(PPE). It includes processing circuitry for receiving and forwarding
packets between the connected 100BASE-TX LANs within each module.
The 3H02-04 contains several LEDs to indicate the module’s operational
status. Each segment has link test enabled and supports receive pair
polarity reversal detection and automatic correction.
The 3H02-04 supports unshielded twisted pair (UTP) and IEEE 802.3
100BASE-TX specification.

Chapter 1: Introduction
Page 1-4 FE Switch Module User Guide
1.3.1 Connectors
The 3H02-04 includes four 8-pin RJ45 receptacle connectors that you can
attach directly to the network by using unshielded twisted-pair (UTP)
cabling. The ATX power supply provides the power for the module.
1.3.2 LEDs
The 3H02-04 contains a total of 14 green LEDs labeled LINK, RX, and
TX for each segment, plus PROC and PWR for the module. The LEDs are
described in Chapter 5 of this manual.
1.3.3 Offline Button
Use the offline button before swapping the module, to take it offline until
the replacement is installed.
Figure 1-2 3H02-04 Front Panel
NOTE
An internal receive/transmit pair crossover is provided in the
second connector on each port.This means that when either a
station or server is directly attached to a 3H02-04 port, you can
choose to use either straight-through or crossover cabling. For
more cabling and crossover information, see Appendix B.
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-TX (UTP)
XXXX
SEGMENT 4SEGMENT 3SEGMENT 2
SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR
Offline button Status LEDs
RJ45 Connectors

3H08-04 FE Switch Module
FE Switch Module User Guide Page 1-5
1.4 3H08-04 FE SWITCH MODULE
The 3H08-04 (Figure 1-3) provides connection for four independent
100BASE-FX LANs to the ATX backplane and packet processing engine
(PPE). It includes processing circuitry for receiving and forwarding
packets between the connected 100BASE-FX LANs within each module.
The 3H08-04 contains several LEDs to indicate the module’s operational
status.
The 3H08-04 supports fiber optic and the IEEE 802.3 100BASE-FX
specification.
1.4.1 Connectors
The 3H08-04 includes four pairs of fiber optic socket connectors for fiber
optic cabling. Receive (RX) and transmit (TX) connectors are clearly
marked on the front panel of the module. The ATX power supply
provides the power for the module.
1.4.2 LEDs
The 3H08-04 contains a total of 14 green LEDs labeled LINK, RX, and
TX for each segment, plus PROC and PWR for the module. The LEDs are
described in Chapter 5 of this manual.
1.4.3 Offline Button
Use the offline button before swapping the module, to take it offline until
the replacement is installed.
Figure 1-3 3H08-04 Front Panel
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-FX
TX RX
SEGMENT 4SEGMENT 3SEGMENT 2SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR
TX RX TX RX TX RX
Status LEDs
Offline Button
Fiber Connectors

Chapter 1: Introduction
Page 1-6 FE Switch Module User Guide
1.5 DOCUMENT CONVENTIONS
The following conventions are used throughout this document:
Commands, prompts, and information displayed by the computer appear
in Courier typeface.
Current Number of Station Addresses: 5
Current Number of Learned Addresses: 133
Number of Defined Filters: 4
NOTE
Note symbol. Calls the reader’s attention to any item of
information that may be of special importance.
TIP
Tip symbol. Conveys helpful hints concerning procedures or
actions.
!
CAUTION
Caution symbol. Contains information essential to avoid
damage to the equipment.
Warning symbol.Warns against an action that could result in
equipment damage, personal injury or death.

FE Switch Module User Guide Page 1-7
1.6 RELATED MANUALS
Use the following manuals to supplement the procedures and other
technical data provided in this manual. The procedures contained in the
following manuals are referenced where appropriate, but not repeated in
this manual.
•
ATX User Guide
• ATX MIB Reference Guide
If you need internetworking reference material, you may find the
following books helpful:
• Interconnections, Bridges and Routers , Radia Perlman, Addison
Wesley
 1992.
•
Internetworking with TCP/IP: Principles, Protocols, and Architecture
(2nd edition),Volumes I and II, Douglas Comer, Prentice Hall
 1991.
•
The Simple Book, An Introduction to Management of TCP/IP-based
internets
, Marshall T. Rose, Prentice Hall  1991.
1.7 GETTING HELP
If you need additional support related to this device, or if you have any
questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:
By phone [phone]
Monday – Friday; 8
A . M . – 8 P . M . Eastern Time
By CompuServe GO CTRON from any ! prompt
By Internet mail [email protected]
By FTP ctron.com (134.141.197.25)
Login
anonymous
Password your email address
Before calling Cabletron Systems Technical Support, have the following
information ready:

Chapter 1: Introduction
Page 1-8 FE Switch Module User Guide
• 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.)
• A description of your network environment (layout, cable type, etc.)
• Network load and frame size at the time of trouble (if known)
• The serial and revision numbers of all Cabletron Systems products in
the network
• The device history (i.e., have you returned the device before, is this a
recurring problem, etc.)
• Any previous Return Material Authorization (RMA) numbers

FE Switch Module User Guide Page 2-1
CHAPTER 2
CONNECTING TO THE NETWORK
This chapter provides reference material and instructions that network
administrators can use to configure the Fast Ethernet Switch Modules.
For instructions on adding a switch module to theATX, see Chapter 5,
Adding/Swapping Modules .
2.1 POWER-UP LED SEQUENCE
Watch the LED sequence during power-up. It takes about 1 minute for the
ATX to complete the power-up diagnostics. The ATX begins system
diagnostics on the PPE (topmost module) and then individually on each
installed module, starting at the top and working down to the bottom.
Using both processors, the specific power-up tests run on the switch
module are:
• ROM checksum test
• Instruction memory test
• Memory map tests
• Interrupt tests
• Fast Ethernet data loopback tests
The power-up LED sequence for the Fast Ethernet module is as follows:
1. All LEDs flash.
2. The PWR LED remains on, and the TX LEDs flash.
3. On each switch module, the following occurs:
a. The PROC LED comes on for 5 seconds, blinks, then remains lit.
b. The RX and TX LEDs flash momentarily.

Chapter 2: Connecting to the Network
Page 2-2 FE Switch Module User Guide
4. After a few seconds, the switch module reboots and the PROC LED
comes on.
5. All other LED activity beyond this point is a function of the
configuration and connection of the ATX.
2.2 CONNECTING TO A NETWORK
To connect the switch module to a Fast Ethernet network, use the
following types of Ethernet cable:
• Unshielded Twisted Pair (UTP for 100BASE-TX)
• Fiber (100BASE -FX)
2.2.1 Connecting the 3H02-04 FE Switch Module
You can connect each of the four 100BASE-TX ports of the 3H02-04 to a
100BASE-TX port on a device such as a workstation, server, hub, etc.,
using unshielded twisted pair cable. Each segment on the 3H02-04
provides two connectors. Depending on whether crossover is provided on
the device being connected to, use either crossover or straight-through
UTP cable to connect to a port. Keep in mind, however,
to use only one
connector on each segment
. For more information on cable
specifications, see Appendix B.
Connect one end of a UTP cable to an open port on the 3H02-04 and the
other end to the RJ45 port on the device (see Figure 2-1).
Figure 2-1 3H02-04 Front Panel Connectors
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-TX (UTP)
XXXX
SEGMENT 4SEGMENT 3SEGMENT 2
SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR

Connecting to a Network
FE Switch Module User Guide Page 2-3
2.2.2 Connecting the 3H08-04 FE Switch Module
You can connect each of the four pairs of ST fiber ports on the 3H08-04 to
a 100BASE-FX port on a device such as a hub, using fiber optic cable.
Each fiber segment has a pair of female ST connectors clearly marked as
“RX” and “TX.”
Attach the transmit (TX) connector on the 3H08-04 to the receive (RX)
connector on the attached device. Similarly, you must then connect the
receive (RX) connector on the 3H08-04 to the transmit (TX) connector on
the attached device (see Figure 2-2). For more information on cable
specifications, see Appendix B.
Figure 2-2 3H08-04 Front Panel Connections
To RX on device
To TX on device
OFFLINE
RX
LK
TX
QUAD FAST ETHERNET / 802.3 100BASE-FX
TX RX
SEGMENT 4SEGMENT 3SEGMENT 2SEGMENT 1
RX
LK
TX RX
LK
TX RX
LK
TX PROC
PWR
TX RX TX RX TX RX

Chapter 2: Connecting to the Network
Page 2-4 FE Switch Module User Guide