Nortel Networks 207344-B User Manual

Part No. 207344-B
February 2000

4401 Great America Parkway
Santa Clara, CA 95054

Using the Centillion EtherSpeedII Switch Modules

Copyright © 2000 Nortel Networks

All rights reserved. February 2000.
The information in this document is subject to change without notice. The statements, configurations, technical data,

and recommendations in this document are believed to be accurate and reliable, but are presented without express or
implied warranty. Users must take full responsibility for their applications of any products specified in this document.
The information in this document is proprietary to Nortel Networks NA Inc.

Trademarks

NORTEL NETWORKS is a trademark of Nortel Networks.
Optivity is a registered trademark and ATMSpeed, Centillion, Centillion 50, Centillion 100, EtherSpeed, Expanded

View, OmniView, Optivity Network Man a gement System, Spee dView, BayStack, Network Atlas, a nd Threshold
Manager are trademarks of Nortel Net works.

Microsoft, Windows, and Windows NT are registered trademarks of Mi crosoft Corporation.
All other trademarks and registered trademarks are the property of their respective owners.

Statement of Conditions

In the interest of improv in g inte rn al d esi gn , o pera tiona l fun c tio n, a nd/or re lia bi lity, Norte l Netwo rks NA Inc. reserves
the right to make changes to the products described in this document without notice.

Nortel Networks NA Inc. does not assume any liability that may occur due to the use or application of the product(s)
or circuit layout(s) described herein.

USA Requirements Only

Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice

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 operat ed in a commercial environment. Th is equipment generates, uses, an d can radiate radio
frequency energy. If it is not installed and used in accordance with the instruction manual, it may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case users will be requ ired to take whatever measures may be necessary to correct the
interference at their own expense.

European Requirements Only

EN 55 022 Statement

This is to certify that the Nortel Networks Centillion EtherSpeedII 10/100BASE-T 20-Port switch module and the
Centillion EtherSpeedII 100BASE-F X 16-Port swi tch module are shield ed against the ge neration of radio interference
in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the
application of EN 55 022 Class A (CISPR 22).

Warning: 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 app r opriate measures.

ii 207344-B

Achtung: Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes
Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende Gegenmaßnahmen verantwortlich
ist.

Attention: Ceci est un produit de Classe A. Dans un envi ronnement domesti que, ce produit risque de créer des
interférences radioélectriques, il appartiendra alors à l’utilisateur de prendre les mesures spécifiques appropriées.

T o maintai n complian ce with FCC radio frequ ency emission limit s, shielde d cables are re quired to connect eq uipm ent
to other Class A certified devices and t he use of quadshield, RG-6/U type CATV cable is required for connection to
the CATV system. Any changes or modificatio ns may void the user’s authorization to operate this equipm e nt.

EC Declaration of Conformity

This product conforms to the provisions of Council Directive 89/336/EEC and 73/23/EEC.
The Declaration of Conformity is available on the Nortel Networks World Wide Web site at
http://libra2.corpwest.baynetworks.com/cgi-bin/ndCGI.exe/DocView/.

Japan/Nippon Requirements Only

Voluntary Control Council for Interference (VCCI) Statement

Taiwan Requirements

Bureau of Standards, Metrology and Inspection (BSMI) Statement

Canada Requirements Only

Canadian Department of Communications Radio Interference Regulations

These digital apparatuses (Centillion EtherSpeedII 10/100BASE-T 20-Port switch module and the Centillion
EtherSpeedII 100BASE-FX 16-Port switch module) do not exceed the Class A limits for radio-noise emissions from
digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications.

Règlement sur le brouillage radioélectrique du ministère des Communications

Cet appareil numérique (Centillion EtherSpeedII 10/100BASE-T 20-Port switch module and the Centillion
EtherSpeedII 100BASE-FX 16-Po rt switc h mod ule) respe c te le s limite s de b ruits radioélectriques visant les appa re ils
numériques de classe A prescrites dans le Règlement sur le brouillage radioélectrique du ministère d es
Communications du Canada.

207344-B iii

Nortel Networks Software License Agreement

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LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITAT ION ANY
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or altered files, data, or programs.

4. Limitation of liability. IN NO EVENT WILL NORTEL NETWORKS OR ITS LICENSORS BE LIABLE FOR ANY
COST OF SUBSTITUTE PROCUREMENT; SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES; OR ANY DAMAGES RESULTING FROM INACCURATE OR LOST DATA OR LOSS OF USE OR
PROFITS ARISING OUT OF OR IN CONNECTION WITH THE PERFORMANCE OF THE SOFTWARE, EVEN IF
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THE LIABILITY OF NORTEL NETWORKS RELA TING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE
PRICE P AID TO NORTEL NETWORKS FOR THE SOFTWARE LICENSE.

iv

207344-B

5. Government Licensees. This provision applies to all Software and documentation acquired directly or indirectly by or on
behalf of the United St at es Government. The Software and docum entation are commercial products, lic ensed on the open
market at market prices, and were developed entirely at private expense and without the use of any U.S. Government funds.
The license to the U.S. G o vernment is granted only with restric t ed r ights, and use, duplic ation, or disclosure by the U.S.
Government is subject to the restrict ions set forth in s ubparag raph (c)(1 ) of the Commercia l Computer Sof tware––Restricted
Rights clause of FAR 52.227-19 and the limitations set out in this license for civil ian agen cies, an d subpar agraph (c )(1)(ii ) of
the Rights in Technical Data and Compu te r Software clause o f DFARS 252.227-7 013, for agencies of the Department of
Defense or their successors, wh ic hever is applicab le .

6. Use of Software in the European Community. This provision applies to all Software acquired for use within the
European Community. If Licensee uses the Software within a country in the European Community, the Software Directive
enacted by the Council of European Communities Directive dated 14 May, 1991, will apply to the examination of the
Software to facilitate interoperability. Licensee agrees to notify Nortel Networks of any such intended examination of the
Software and may procure support and assistance from N or te l N etworks.

7. Term and termination. This license is effective until terminated; however, all of the restrictions with respect to Nortel
Networks’ copyright in the Software and user manuals will cease being effective at the date of expiration of the Nortel
Networks copyright; those restrictions relating to use and disclosure of Nortel Networks’ confidential information shall
continue in effect. Lice nsee may ter min ate this license at any time. The license will a u toma tically terminate if Licensee fails
to comply with an y of the terms and cond i tions of the licen se. Upon termination for any reaso n, Licensee will i mme diately
destroy or return to Norte l Networ ks the Software , user manuals , and al l copie s. Nor tel Network s is not l iable to Licensee for
damages in any form solely by reason of the te rm i nation of this license.

8. Export and Re-expo rt . Licensee agrees not to export, directly or indirectly, the Software or related technical data or
information without first obtaining any required export licenses or other governmental approvals. Without limiting the
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use, including the d esign, developmen t, or production of any chem i cal, nuclear, or biological wea pons.

9. General. If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction,
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the laws of the state of California.

Should you have any questions concerni ng this Agreement, contact Nortel Netw or ks, 4401 Great America Parkway, P.O.
Box 58185, Santa Clara, Ca lif or ni a 95054-8185.

LICENSEE ACKNOWLEDGES THAT LICENSEE HAS READ THIS AGREEMENT, UNDERSTANDS IT, AND
AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS. LICENSEE FURTHER AGREES THAT THIS
AGREEMENT IS THE ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN NORTEL NETWORKS AND
LICENSEE, WHICH SUPERSEDES ALL PRIOR ORAL AND WRITTEN AGREEMENTS AND COMMUNICATIONS
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OR ADDITIONAL TERMS WILL BE ENFORCEABLE AGAINST NORTEL NETWORKS UNLESS NORTEL
NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT, INCLUDING AN EXPRESS WAIVER OF THE TERMS OF
THIS AGREEMENT.

207344-B v

vi

207344-B

Contents

Preface

Before You Begin ............................................................................................................. xv

Related Publications ........................................................................................................xvi

Hard-Copy Technical Manuals . ....... ...... ....... ...... ....... ...... ....... ...................................... ....xvi

How to Get Help ......... ....... ...... ....... ...... ....... ...... ....... ...... ....... ...... ...... .............................xvii

Chapter 1
Overview of the EtherSpeedII Switch Modules

Overview of the Switch Modules .... ...... ....... ...... ....... ...... ....... ...... ...................................1-1

Features of the Switch Modules .....................................................................................1-2

Physical Description of the Switch Modules ...................................................................1-4

LED Displays on the Switch Modules .............................................................................1-6

Switch Configuration and Management ..........................................................................1-7

Network Management Applications and Features ...................................................1-7

SpeedView .........................................................................................................1-7

Optivity ............................... .......................... ......................... .......................... ... 1-8

Command Line Interface ..........................................................................................1-8

MCP Modules ...........................................................................................................1-8

SNMP MIB Support ............................... ...... ....... ...... ....... ...... ...... ....... ......................1-8

TFTP Support ...........................................................................................................1-9

Spanning Tree Protocol 802.1d Support ..................................................................1-9

Support for Virtual LANs ..........................................................................................1-9

Filtering ....................................................................................................................1-9

Hot-Swapping Capability ........................................................................................1-10

10/100 Mb/s Autonegotiation Ports ..............................................................................1-10

207344-B vii

Chapter 2
Planning a Network with EtherSpeedII Switch Modules

Connecting the EtherSpeedII Switch Modules to Ethernet Hubs and Network Devices 2-1

EtherSpeedII 10/100BASE-T Switch Module ..........................................................2-1

EtherSpeedII 100BASE-FX Switch Module .............................................................2-2

Network Configuration Examples ...................................................................................2-2

Giving a Server a Dedicated Port .............................................................................2-4

Replacing a Bridge ...................................................................................................2-5

Desktop Switch with ATM Uplinks ............................................................................2-6

Segment Switch in an Enterprise Network ...............................................................2-7

Desktop Switch and Frame-to-Cell Converter ..........................................................2-8

MultiLink Trunking ................................. ...... ....... ...... ....... ...................................... ...2-9

Default Port Configuration ............................................................................................2-10

Predefined SpeedView Configurations .........................................................................2-11

Chapter 3
Installing the EtherSpeedII Switch Modules

Preparing for Installation .................................................................................................3-1

Safety .......................... ................................................................ ............................. 3-2

Installing a Switch Module ....... ....... ...... ....... ...... ....... ...... ....... ...... ...................................3-2

Checking LEDs on the Switch Modules ..........................................................................3-6

Making 10/100 Mb/s Cable Connections ........................................................................3-8

Removing a Module ........................................................................................................3-8

Installing the Replacement Switch Modul e ................................. ....... ...... ....... ...... .3-10

Reconfiguring the Replacement Switch Module ....................................................3-10

Chapter 4
Troubleshooting

EtherSpeedII Switch Module Startup Failure .................................................................4-2

Port Connection Problems ..............................................................................................4-3

viii

207344-B

Appendix A
Technical Specifications

Appendix B
Cables and Connectors

UTP Cable Length Limitations ....................................................................................... B-1

UTP Cabling ... ...... ...... ....... ...... ....... ...... ....... ...................................... ....... ...... ....... ...... .. B-2

10BASE-T/100BASE-TX MDI Ports and MDI-X Ports ................................................... B-2

UTP Cables and Connectors ......................................................................................... B-5

Using Category 5 Unshielded Twisted Pair Cables ....................................................... B-6

Using Shielded Twisted Pair Cables .............................................................................. B-7

Appendix C
LED Displays on the EtherSpeedII Switch Modules

Index

207344-B ix

x

207344-B

Figures

Figure 1-1. EtherSpeedII Switch Modules in a Network Center ................................1-2

Figure 1-2. EtherSpeedII 10/100BASE-T 20-Port Switch Module .............................1-4

Figure 1-3. EtherSpeedII 100BASE-FX 16-Port Switch Module ................................1-5

Figure 1-4. LEDs on the EtherSpeedII 10/100BASE-T Switch Module .....................1-6

Figure 1-5. LEDs on the EtherSpeedII 100BASE-FX Switch Module ........................1-6

Figure 2-1. Network Example .....................................................................................2-3

Figure 2-2. Connecting Servers to Dedicated Ports ...................................................2-4

Figure 2-3. Replacing a Bridge ...................................................................................2-5

Figure 2-4. Desktop Switch with ATM Uplinks ............................................................2-6

Figure 2-5. Segment Switch in an Enterprise Network ...............................................2-7

Figure 2-6. Desktop Switch and Frame-to-Cell Converter .........................................2-8

Figure 2-7. MultiLink Trunking Example ............... ...... ....... ...... ...... .............................2-9

Figure 3-1. Removing the Filler Panel ........................................................................3-3

Figure 3-2. Inserter/Extractor Levers Ready for Installation .......................................3-3

Figure 3-3. Slot Module Guides ..................................................................................3-4

Figure 3-4. Inserting the Module Until It Engages the Backplane ..............................3-4

Figure 3-5. Seating the Module ..................................................................................3-5

Figure 3-6. LED Display for the 10/100BASE-T switch module .................................3-6

Figure 3-7. LED Display for the EtherSpeedII 100BASE-FX Switch Module .............3-7

Figure 3-8. Disengaging the Module ..........................................................................3-9

Figure 3-9. Removing the Module from the Centillion 50/100 Chassis ....................3-10

Figure B-1. MDI-X Internal Crossover (RJ-45 Example) ........................................... B-2

Figure B-2. MDI-X to MDI-X External Crossover (RJ-45 Example) ........................... B-3

Figure B-3. MT-RJ Connector .................................................................................... B-4

Figure B-4. 10BASE-T/100BASE-TX Ethernet UTP Crossover Cable ...................... B-5

Figure B-5. Fast Ethernet Type 1 Balun Media Adapter ............................................ B-7

Figure C-1. LED Display for the EtherSpeedII 10/100BASE-T Switch Module ......... C-1

Figure C-2. MT-RJ LEDs for the EtherSpeedII 100BASE-FX Switch Module ...........C-3

207344-B xi

xii

207344-B

Tables

Table 2-1. Factory Default Settings for the 10/100BASE-T Switch Module ............2-10

Table 2-2. Factory Default Settings for the 100BASE-FX Switch Module ...............2-10

Table B-1. Optical Specifications for Multimode Fiber Optic Cable .......................... B-4

Table B-2. Specifications for Multimode Fiber Optic Transceivers ........................... B-4

Table B-3. 10BASE-T/100BASE-TX MDI-X Port Pin Assignments .......................... B-5

Table B-4. Pairs in an RJ-45 Crossover Cable ......................................................... B-6

Table C-1. LEDs on the EtherSpeedII 10/100BASE-T Switch Module ....................C-2

Table C-2. LEDs on the EtherSpeedII 100BASE-FX Switch Module .......................C-4

207344-B xiii

xiv

207344-B

Preface

This guide provides a n overvie w of the Nor tel Networ ks™ Centillion™ EtherSpeed

™

10/100BASE-T 20-Port Switch Module and the Centillion EtherSpeedII

II
100BASE-FX 16-Port Switch Module, and information about installing the
switch modules.

Instructions to configure both EtherSpeedII switch modules is described in Using

SpeedV iew 4.2 f or W indows and Release Notes for the Centillion Platform Release

4.1.2. For more information about this topic, see “

page xvi.
In this guide, the Centillion EtherSpeedII 10/100BASE-T 20-Port switch module

and the Centillion EtherSpeedII 100BASE-FX 16-Port switch module are also
referred to as either EtherSpeedII switch modules or as switch modules.

Related Publications” on

Before You Begin

This guide is intended for local area network administrators who are responsible
for installing, configuring, or maintaining a network and have the following
background:

• Familiarity with Ethernet network administration

• Familiarity with the tools and procedu res for in stalling an d operating sen sitive

electronic equipment

• Understanding of Nortel Networks network management concepts and
terminology

207344-B xv

Using the Centillion EtherSpeedII Switch Modules

Related Publications

For information abou t EtherSpee dII switc h modules, ref er to the following r elated
publications:

• Using SpeedView 4.2 for Windows (Part number 893-891-E)
Describes this application, which is used for configuring the module.

• Release Notes for the Centillion Platform Release 4.1.2

(Part number 203315-C)
Describes updates to Sp eedView for the 4.0 software release.

• Reference Guide for the Centillion Command Line Interface 4.2
(Part number 893-00985-D)

Describes setup and configuration procedures for Centillion
the command line interfa ce.

• Installation and Reference for the Centillion 50 and 100 Chassis
(Part number 893-894-C)

Provides installation information for the Centillion 50
chassis.

™

switches using

™

and Centillion 100™

Hard-Copy Technical Manuals

You can print selected technical manu al s and release notes, for free, di rectly from
the Internet. Go to the http://www12.nortelnetworks.com/library Web address.
Find the product for which you need documentation. Then locate the specific
category and model or version for your har dwar e or s oft war e product. Use Adobe
Acrobat Reader to op en the manuals a nd rel ease n ote s, sear ch for the s ectio ns y ou
need, and print them on most standard printers. Go to the Adobe Systems Web
address at www.adobe.com to download a free copy of Acrobat Reader.

You can purchase selected documentation sets, CDs, and technical publications
though the Interne t at t he www1.fatbrain.com/documentation/nortel/ Web address.

xvi 207344-B

How to Get Help

If you purchased a service contract for your Nortel Networks product from a
distributor or authorized reseller, contact the technical support staff for that
distributor or reseller for assistance.

If you purchased a Nortel Networks service program, cont act one of the fol lowing
Nortel Networks Technical Solutions Centers:

Technical Solutions Center Telephone Number

Billerica, MA 800-2LANWAN (800-252-6926)
Santa Clara, CA 800-2LANWAN (800-252-6926)
V al bon ne, Fran ce 33-4-92-96-69-68
Sydney, Australia 61-2-9927-8800
Tokyo, Japan 81-3-5740-1700

Preface

207344-B xvii

Chapter 1

Overview of the EtherSpeedII Switch Modules

This chapt er introduces the Centillion EtherSpeedII 10/100BASE-T 20-Port
Switch Module and the Centillion EtherSpeedII 100BASE-FX 16-Port Switch
Module, and includes information about the following topics:

• Overview of the switch modules (this page)

• Features of the switch modules (page 1-2

• Physical description of the switch modules (page 1-4

• Switch configuration and management (page 1-7

Overview of the Switch Modules

The EtherSpeedII 10/100BASE-T 20-Port Switch Module provides 20 RJ-45
10/100 megabit per second (Mb/s) autonegotiation ports that support servers,
routers, or dedicat ed connections to user s (Figure 1-1
also support multiple users through a shared-media hub connection to a port.

The EtherSpeedII 100BASE-FX 16-Port Switch Module provides 16 MT-RJ 100
Mb/s fiber ports for connections that support connections to other 100BASE-FX
devices, f or example, switches, servers, and routers.

Each switch module is installed in a single slot of a Centillion 50/100 chassis.

™

You can use SpeedV i ew
the modules.

network management sof tware to c onfigure and manage

)

)

)

). These switch modules can

207344-B 1-1

Using the Centillion EtherSpeedII Switch Modules

ATM MDA MCP

module

EtherSpeedII

modules

UTP 10/100 connections

Figure 1-1. EtherSpeedII Switch Modules in a Network Center

Note: You can use Category 3 UTP cable only for fixed 10 Mb/s port

operation, not for 100 Mb/s or 10/100 autonegotiating port operation.

Router

to users

Centillion 100

chassis

100 Mb/s

BayStack Ethernet hub

9465EA

Features of the Switch Modules

The Centillion EtherSpeedII 10/100BASE-T 20-Port Switch Module and the
Centillion EtherSpeedII 100BASE-FX 16-Port Switch Module offer the following
features:

• Wire-speed, port-to-port, packet transfer

• Single-slot design to fit into the Centillion 50/100 chassis

• Autonegotiation of Ethernet 10/100 Mb/s speed

(EtherSpeedII 10/100BASE-T switch module only)

• Layer 2 MAC address-based switching

• Local frame switching, module-to-module switching, backplane switching,

and riser switching

• 200 MHz RISC processor

1-2 207344-B

Overview of the EtherSpeedII Switch Modules

• 20 RJ-45 UTP network interface connectors
(EtherSpeedII 10/100BASE-T switch module only)

• 16 MT-RJ fiber connectors (EtherSpeedII 100BASE-FX switch module only)

• Front-panel LEDs to indicate port status

• Port-based virtual LANs (VLANs)

• Protocol-based VLANs

Protocol-sensitive VLANs classify packets based on protocol types. Most
customers have multiple protocols per LAN segment, so a switch port needs
to support multiple VLANs based on different protocol types. This feature
allows you to separate da ta based on prot ocols and not on ph ysical limitat ions.

• IEEE 802.1Q tag recognition support
EtherSpeedII switch modules support recognition of VLAN tagged frames

based on IEEE 802.1Q tags. Frames entering an EtherSpeedII switch module
port that contain an 802.1Q tag are mapped to a corr esp ondi ng VLAN. Bas ed
on the final destination, the frame is sent as either an Ethernet-type frame or
an 802.1Q VLAN tagged frame. VLAN membership can be assigned by any
combination of port with either tag or protocol.

• Support for IEEE 802.1d Spanning Tree

• Content-addressable memory (CAM) support for 8192 entries

• Port steering/port mirroring

• Input and output filtering supported by switching software

• Hardware support for IP multicast

• Support for RMON Management Information Base (MIB)
— Ethernet Statistics Group
— Ethernet History Group
— Ethernet Alarm Group
— Ethernet Event Group

• Ability to install, remove, and replace a module in an operational chassis

(hot-swap)

• Ha rdware Assist Multi-Protocol Over ATM (MPOA)

207344-B 1-3

Using the Centillion EtherSpeedII Switch Modules

MPOA is the ATM Forum standard that specifies a method to efficiently
transport intersubnet unicast data in a LAN emulation (LANE) environment.
MPOA uses LANE and Next Hop Resolution Protocol (NHRP) processes to
allow direct shortcut vir tual channe l connecti ons (VCCs) to be estab lished for
intersubnet communication without requiring passage through a router. The
intrasubnet communication continues to be supported over LANE. For IP,
Nortel Networks has adopted MPOA as the standard to implement layer 3
switching in an ATM network.

• Improved performance in segmentation and reassembly (SAR) performance
to 3.2 gigabits per second (Gb/s).

• MultiLink Trunking (MLT)

Physical Desc ription of the Switch Modules

The EtherSpeedII 10/100BASE-T switch module (Figure 1-2) consists of a
printed circuit board with a metal module faceplate. The switch module includes
captive retaini ng scr ews and inserter/extrac tor l eve rs on the top and bottom of th e
front panel.

Backplane connector

Captive retaining

screws

Inserter/extractor

levers

20 10/100BASE-T ports (RJ-45)

Figure 1-2. EtherSpeedII 10/100BASE-T 20-Port Switch Module

1-4 207344-B

LEDs

Printed circuit
board

9454FA

Overview of the EtherSpeedII Switch Modules

The EtherSpeedII 100BASE-FX switch module (Figure 1-3) consists of a printed
circuit board with a metal module faceplate. The module includes captive
retaining s crews and inserter/extractor levers on the top and bottom of the front
panel.

Backplane connector

Captive retaining

screws

Inserter/extractor

levers

16 100BASE-FX ports (MT-RJ)

LEDs

Printed circuit
board

9722FA

Figure 1-3. EtherSpeedII 100BASE-FX 16-Port Switch Module

Each switch module occupies one slot in a Centillion 50/100 chassis. In a
Centillion 100 chassis, you can install a maximum of either:

• Five EtherSpeedII switch modules and one master control processor
(MCP) switch module

• Four EtherSpeedII switch modules and two MCP switch modules

In a Centillion 50 cha ssi s, you can install a maximu m of t wo EtherSpeedII switch
modules and one MCP switch module.

Note: See Appendix B, “Cables and Connectors,” for more information about

wiring and pin assignments.

207344-B 1-5

Using the Centillion EtherSpeedII Switch Modules

LED Displays on the Switch Modules

LEDs on a switch module indicate port status. Figure 1-4 illustrates the front
panel of an EtherSpeedII 10/100BASE-T switch module.

LEDs

20 10/100BASE-T ports

(RJ-45)

LINK 10/100

9458FA

Figure 1-4. LEDs on the EtherSpeedII 10/100BASE-T Switch Module

Figure 1-5 illustrates the front panel of an EtherSpeedII 100BASE-FX switch

module.

LEDs

16 100BASE-FX

ports (MT-RJ)

LINK ERROR

9458FB

Figure 1-5. LEDs on the EtherSpeedII 100BASE-FX Switch Module

1-6 207344-B

Overview of the EtherSpeedII Switch Modules

Note: For more information about LEDs, refer to Appendix C, “LED Displays

on the EtherSpeedII Switch Modules.”

Switch Configuration and Management

You manage and configure EtherSpeedII switch modules through access to an
installed MCP module in the Centill ion 50/100 chass is with the foll owing network
management applications and features:

• Network management applications such as SpeedView and Optivity

• Co mmand line interface (CLI)

• Simple Network Management Protocol (SNMP) agent with Centillion MIB

extensions

• Trivial File Transfer Protocol (TFTP) support

• Spanning Tree Protocol support

• VLAN support

• Filtering

• Hot-swapping capability

®

Network Management Applications and Features

EtherSpeedII switch modules support the following applications and features to
configure and manage your network.

SpeedView

®

SpeedView is a network management application that runs on Windows

®

Windows 98 and Windows NT

and provides a graphical user interface to set up
your switch. SpeedView allows you to monitor and control network traffic and to
perform advanced operations such as filter configuration. For more information
about SpeedView, refer to Using SpeedView 4.2 for Windows and Release Notes

for the Centillion Platform Release 4.1.2.

207344-B 1-7

95 or

Using the Centillion EtherSpeedII Switch Modules

Optivity

The Optivity Network Management System
configuration and monitoring support for the Centillion 50/100 chassis switches.
SpeedView provides configuration support when integrated with Optivity NMS.

™

Expanded View

, OmniVi ew™, Network Atlas™, Threshold Manager™, and other
Optivity applications provide comprehensive monitoring and troubleshooting
support. For more information about Optivity network management software,
refer to your Optivity documentation.

Command Line Interface

The Centillion command line interface (CLI) provides an out-of-band interface
for the initial setup of basic configuration parameters such as IP address and
bridging mode. For more information about the CLI structure and commands,
refer to Reference Guide for the Centillion Command Line Interface 4.2.

MCP Modules

Each EtherSpeedII switch module maintains its own switch tables for directing
traffic. A central supervisor, the master control processor (MCP), consolidates
these distributed tables into master tables that are accessible to other modules
within a chassis or within a network of System 5000 hubs or Centillion switch
modules. The MCP also handles the switch-wide housekeeping functions such as
network management.

™

(NMS) provides enterpri se-wide

SNMP MIB Support

The Centillion switch modules support a Simple Network Management Protocol

(

SNMP)-compatible agent with private MIB extensions. Built-in SNMP agent
support ensures compatibili ty with existin g network management tools. The MCP
modules support MIB-I and MIB-II (RFC 1213) standards that provide access to
detailed management statistics.

Using SpeedView, you can configure SNMP traps to be generated automatically
for conditions s uch as una uthori zed ac ce ss att empts or chan ges in ope rati ng sta tus
on individual ports.

1-8 207344-B

Overview of the EtherSpeedII Switch Modules

TFTP Support

Trivial File Transfer Protocol (TFTP) is a supported Transmission Control
Protocol/Internet Protocol (TCP/ IP) service you c an use to downlo ad software a nd
configuration information to the MCP module memory. TFTP allows you to
transfer an updated switch agent and configuration files from a remote server to
flash memory. You can perform a transfer over the network or through a serial
connection to the installed MCP module.

Spanning Tree Protocol 802.1d Support

The EtherSpeedII switch module software supports the Spanning Tree Protocol
as specified in the IEEE 802.1d standard. The Spanning Tree Protocol is
implemented to detect and eliminate logical loops in a bridged or switched
network. When multiple paths exist, the spanning tree algorithm configures the
network so that a bridge or switch uses only the most efficient path. If that path
fails, the proto col automa tically reconfigures the network to make anothe r path
become active, thus sustaining network operations.

Support for Virtual LANs

Using an EtherSpeedII switch module, you can group one or more physical ports
to form a virtual LAN (VLAN) that constitutes a single broadcast domain.

VLANs are formed when broadcast domains are configured across multiple
switches. Each Ethernet segment is an ind ependent physi cal se gment wit h its own
collision domain, but all segments within a VLAN appear to the user as a
broadcast domain.

Filtering

Filtering capabilities for the EtherSpeedII switch modules are implemented in
system hardware and controlled by system software. Refer to the appropriate
Centillion release notes for descriptions of the supported filtering capabilities,
features, and availability.

207344-B 1-9

Using the Centillion EtherSpeedII Switch Modules

Hot-Swapping Capability

You can insert EtherSpeedII switch modules into or remove them from a chassis
without interrupti ng service to other modules within t he Centilli on 50/100 chassis.
This feature is called “hot-swapping.”

Caution: Be sure to remove cable s from all por ts on the mod ule, or disa ble a ll

the ports through the management interface, prior to hot-swapping.

10/100 Mb/s Autonegotiation Ports

The EtherSpeedII 10/100BASE-T switch module contains 20 10/100 Mb/s UTP
autonegotiating Ethernet ports with shielded RJ-45 connectors. The RJ-45
connectors accep t Categor y 3 or 5 unshiel ded twist ed pair (UTP) cable or shi elded
twisted pair (STP) cable and are wired as MDI-X ports to connect end stations to
patch panels without using crossover cables.

Note: See Appendix B, “Cables and Connectors,” for information about

wiring and pin assignments.

1-10 207344-B

Chapter 2

Planning a Network with

EtherSpeedII Switch Modules

Installing the Ethe rSpeedII 10/100BASE- T or Eth erSpeedII 100BASE-FX switch
modules in a network can significantly improve LAN performance. This chapter
provides information to help you plan a network that uses either or both of these
modules. The chapter includes the following topics:

• Connecting the EtherSpeedII Switch Modules to Ethernet hubs and network

devices (this page)

• Typical network configuration examples (page 2-2

• Factory-set and predefined configurations (page 2-10

Note: Follow the basic guidelines in Appendix A, “Te chnica l Spec ific ation s,”

and Appendix B, “Cables and Connectors
EtherSpeedII switch modules.

,” when you plan a network using

)

)

Connecting the EtherSpeedII Switch Modules to Ethernet Hubs and Network De vices

This section provides information on connecting EtherSpeedII switch modules to
Ethernet hubs and network devices.

EtherSpeedII 10/100BASE-T Switch Module

You connect the ports of the EtherSpeedII 10/100BASE-T switch module to the
front panel, wired as MDI-X connections. This wiring allows you to use a
straight-through cable between the switch module and the patch panel.

207344-B 2-1

Using the Centillion EtherSpeedII Switch Modules

To connect the ports on the patch panel to another Ethernet switch or an Ethernet
hub, follow these guidelines:

• Personal computers (PCs) and servers typically have network interface cards

(NICs) that are con figur ed as MDI co nnecti ons. To connect these devic es, use
a straight-through cable.

• Hubs and other switches typically have connectors that are configured as

MDI-X. Some hubs and sw itche s have ports that are set b y a to ggle s wit ch for
either MDI or MDI-X operation.

— T o connect a port se t for MDI to the EtherSpee dII switch modul e port, use

a straight-through cable.

— To connect a port set for MDI-X to the EtherSpeedII switch module port,

use a crossover cable.

Note: For connector specifications for MDI and MDI-X ports, refer to

Appendix B, “Cables and Connectors

.”

EtherSpeedII 100BASE-FX Switch Module

You connect the EtherSpeedII 100BASE-FX switch module ports to Ethernet
hubs and network devices using MT-RJ patch cables as appropriate for your
cabling environment.

Note: Because multimode f iber connec tions do not autonegoti ate, the mode of

the devices at both ends of a link must be identical (HDX or FDX).

Network Configuration Examples

The EtherSpeedII 10/100BASE-T switch module and the EtherSpeedII
100BASE-FX switch module are adaptable switches suitable for use in wiring
closets or network centers in conjunction with the Centillion 50/100 chassis.

Figure 2-1

network configuration.

2-2 207344-B

shows an example of the EtherSpeedII switch modules in a sample

Planning a Network with EtherSpeedII Switch Modules

This section describes the following Ethernet switching applications:

• Dedicated ports for servers (page 2-4

• Replacement for a bridge port (page 2-5

• Desktop switch with ATM uplinks in a wiring closet (page 2-6

)

)

)

• Segment switch in a wiring closet with ATM uplinks to a network center

switch (page 2-7

• Desktop switch and frame-to-cell converter (page 2-8

• MultiLink Trunking (page 2-9

ATM MDA MCP

module with

fiber MDAs

EtherSpeedII

modules

Redundant,
load-balanced
risers to closets

)

)

)

Centillion 50 Chassis

BayStack 450-FX

100 Mb/s

FDX

UTP 10/100 connections

to users

Centillion 50 Chassis

UTP 10/100 connections

to users

Network
Center

Centillion 100

Chassis

Redundant,
network center
switches

Router

ATM

Enterprise servers

ATM

VLAN D

10/100 Mb/s

Centillion 100

Chassis

Workgroup

servers

A

B

C

9466EB

Figure 2-1. Network Example

207344-B 2-3

Using the Centillion EtherSpeedII Switch Modules

Giving a Server a Dedicated Port

Moving a server from a 10 Mb/s shared-media connection to a dedicated port
on the EtherSpeedII 10/100BASE-T switch module or the EtherSpeedII
100BASE-FX switch module improves server response time and increases
throughput capacity. For even higher performance, upgrade the server to 100 Mb/
s and the switch modules can autonegotiate for 100 Mb/s.

In Figure 2-2

, the “Before” example shows clients and servers sharing the same
network segment. The “After” example shows the same clients assigned to
different segments through a shared hub (either 10/100 Mb/s or directly
connected) and the original servers connected to switch ports on a Centillion 50
chassis. In addition, two servers have been added through 10/100 Mb/s
connections.

Before

Clients

Segment

10 Mb/s

100 Mb/s

Servers

After

Clients

Centillion 50

Chassis

ATM MDA MCP
module

EtherSpeedII
modules

Segment

10 Mb/s

clients

Segment

100 Mb/s

clients

10 or 100 Mb/s

clients

100 Mb/s

Servers

10 Mb/s100 Mb/s

9467EA

Figure 2-2. Connecting Servers to Dedicated Ports

2-4 207344-B

Replacing a Bridge

Using a switch instead of a bridge in the network can increase the aggregate
network bandwidth.
connected to a dedicated 10BASE-T port. It also shows the other server and
additional clients attached using dedicated 100BASE-TX connections. This
network configuration allows you to have switched 10 Mb/s Ethernet along with
segmented 10 Mb/s Ethernet to conserve ports.

Planning a Network with EtherSpeedII Switch Modules

The “After” example in Figure 2-3 shows one server

Before

Clients

Servers

Clients

Segment

Bridge

After

10 Mb/s

100 Mb/s

Segment

10 Mb/s

clients

Segment

100 Mb/s

clients

10 or 100 Mb/s

clients

Figure 2-3. Replacing a Bridge

Segment

Centillion 100

Chassis

100 Mb/s

ATM MDA MCP
module

EtherSpeedII
modules

10 Mb/s

Servers

9468EB

207344-B 2-5

Using the Centillion EtherSpeedII Switch Modules

Desktop Switch with ATM Uplinks

In the example shown in Figure 2-4, the EtherSpeedII 10/100BASE-T switch
module provides 20 RJ-45 switched Ethernet (10/100 Mb/s) ports to connect to
desktops, with redundant high-speed ATM OC-3c and OC-12c ports to connect
to an ATM backbone. This network configuration can support small to large
wiring closets.

Figure 2-4

also illustrates a sample network providing ATM uplinks to a
Centillion 50/100 chassis. Servers are connected to the network through the
Centillion 50/100 chassis, and network stations are connected to the
10/100BASE-T ports on the EtherSpeedII 10/100BASE-T switch modules. The
chassis are dual-homed with ATM OC-3c and OC-12c uplinks to the Centillion
50/100 chassis and the Model 5000/5005BH chassis. These chassis can be
interconnected with multiple ATM links.

Data Center

with EtherSpeedII modules

Wiring Closet

Shared-media

Model 5000BH

Chassis

Centillion 100 Chassis

and ATM MDA MCP

switch modules

100 Mb/s

Servers

10 Mb/s
10 Mb/s

ATM

100 Mb/s

100 Mb/s

BayStack

hubs

ATM Router

Clients

9470EA

Figure 2-4. Desktop Switch with ATM Uplinks

2-6 207344-B

Planning a Network with EtherSpeedII Switch Modules

Segment Switch in an Enterprise Network

To achieve a gradual transition from shared media to switched networks, you can
use the EtherSpeedII 10/100BASE-T switch module or the EtherSpeedII
100BASE-FX switch module to aggregate traffic from stations connected to one
or more hubs. Figure 2-5
shared-media hubs to a backbone switch. Stations connected to the EtherSpeedII
switch module are associated with different segments through the configuration
switching feature.

shows such a network with switches used to connect

Data Center

Wiring Closet

Shared-media

Model 5000BH

Chassis

Centillion 100 Chassis

with EtherSpeedII module

and ATM MDA MCP

switch modules

100 Mb/s

Servers

10 Mb/s

10 Mb/s

ATM Router

ATM

100 Mb/s

100 Mb/s

FDX

BayStack

switches

Clients

9470EB

Figure 2-5. Segment Switch in an Enterprise Network

207344-B 2-7

Using the Centillion EtherSpeedII Switch Modules

Desktop Switch and Frame-to-Cell Converter

For wiring closets with higher densities and lower bandwidth requirements, you
can use the EtherSp eedII 10/ 100BASE- T swi tc h modu le to aggregate traffic from
other stackable switch products such as the BayStack
switches (providing frame switching) to an ATM backbone (providing cell
switching). The stackable switches and the 20 RJ-45 10/100 Mb/s switched
Ethernet ports on the EtherSpeedII 10/100BASE-T switch module provide
desktop connectivity.

™

301 and BayStack 350T

Figure 2-7

shows a network with EtherSpeedII 10/100BASE-T switch modules
used to connect BayStack 301 and BayStack 350T switches to the Centillion 50/
100 chassis in a data center. The 10/100 Mb/s ports on the EtherSpeedII switch
module provide high-speed connections to the BayStack switches. The
EtherSpeedII switch module provides switched 10 Mb/s or 100 Mb/s capability
for higher-bandwidth desktop connectivity. You can upgrade to 100 Mb/s with a
client NIC upgrade.

Data Center

100 Mb/s

Server

Wiring Closet

Centillion 100 Chassis Centillion 100 Chassis

ATM

ATM

100 Mb/s

BayStack 301

switch

ATM

Centillion 100 Chassis
with EtherSpeedII modules
and ATM MDA MCP
switch modules

100 Mb/s

BayStack 350T

switches

350F 10/100 Autosense Switch

100 Mb/s

Server

350F 10/100 Autosense Switch

10/100 Mb/s clients

9471EB

Figure 2-6. Desktop Switch and Frame-to-Cell Converter

2-8 207344-B

MultiLink Trunking

MultiLink Trunking (MLT) allows up to four physical connections for the same
media type and speed to be grouped and treated as a single logical link. MLT
improves performance between two switches or between a switch and a server.
Ports in a single MLT group can span multiple modules.

ML T a llows data t o be carri ed over multiple 100 Mb/s full -duplex li nks connected
to the same device, thus improving performance. Figure 2-7
connecting multiple BayStack 450 ports into an EtherSpeedII 10/100BASE-T
switch module all ows the da ta load to be shared across mul tiple p orts and multiple
boards, improving overall performance. The ability to load share across multiple
ports and multiple board s is commonly referred to as distributed MLT.

BayStack 450-24T

Planning a Network with EtherSpeedII Switch Modules

shows that

Centillion 100 Chassis

100 Mb/s

100 Mb/s

MLT

connection

9472EA

Figure 2-7. MultiLink Trunking Example

207344-B 2-9

Using the Centillion EtherSpeedII Switch Modules

Default Port Configuration

The EtherSpeedII 10/100BASE-T switch module is shipped preconfigured with
the factory default settings listed in Table 2-1

Table 2-1. Factory Default Settings for the 10/100BASE-T Switch

Module

Parameter Factory Default Configurable Options

Switching mode Transparent Transparent
Spanning Tree Protocol None None, IEEE
Port state Enable Enable/Disable
Filters Disable (none) Enable/Disable
Port speed Auto Auto/10/100
Connection Mode Auto Auto/HDX/FDX
Spanning tree group 2 2–32
Priority 128 0–255
Path cost 10 1–65535

.

The EtherSpeedII 10 0BASE-FX swit ch modul e is s hipped pre confi gured wi th th e
settings listed in Table 2-2

Table 2-2. Factory Default Settings for the 100BASE-FX Switch Module

Parameter Factory Default Configurable Options

Switching mode Transparent Transparent
Spanning Tree Protocol None None, IEEE
Port state Enable Enable/Disable
Filters Disable (none) Enable/Disable
Spanning tree group 2 2–32
Full/half-duplex set tin g FDX HDX/FDX
Priority 128 0–255
Path cost 10 1–65535

2-10 207344-B

.

Planning a Network with EtherSpeedII Switch Modules

Predefined SpeedView Configurations

SpeedV iew of fers several predefined con figuration s. You may choose one of these
without configuring individual ports. Predefined configurations are available for
the following applications:

• All transparent switching with no IEEE 802.1d Spanning Tree support

• All transparent switching with IEEE 802.1d Spanning Tree support

You must enter additional configuration information if you are using any of the
following features:

• ATM

• VLANs

• Filtering

• Combinations of bridging modes and Spanning Tree Protocol not offered as

defaults

Instructions for using these features are available in Using SpeedView 4.2 for
Windows and Release Notes for the Centillion Platform Release 4.1.2.

207344-B 2-11

Chapter 3

Installing the EtherSpeedII Switch Modules

This chapter explains how to install and connect the EtherSpeedI I 10/100BASE-T
switch module or the EtherS peedII 100BASE-FX swit ch module, and inc ludes the
following information and procedures:

• Preparing for installation (this page)

• Installing a switch module (page 3-2

• Ch ecking LEDs to verify the installation (page 3-6

• Connecting cables to Model # ports (page 3-8

• Removing a switch module (page 3-8

Preparing for Installation

Before you install the EtherSpeedII 10/100BASE-T switch module or the
EtherSpeedII 100BASE-FX switch module, make sure that the Centillion 50/100
chassis is assembled and ready to accept modules. For more information, refer to
Installation and Reference for the Centillion 50 and 100 Chassis.

Yo u need the following tools and materials for install ation:

• Medium flat-tip screwdriver for the captive retaining screws

• Grounded antistatic mat and wrist strap

)

)

)

)

207344-B 3-1

Using the Centillion EtherSpeedII Switch Modules

Safety

Always follow static electricity and other safety guidelines when handling
EtherSpeedII switch modules.

Caution: Centillion eq uipment use s electroni c components tha t are sensi tive to

static electricity. Static discharge from your clothing or other fixtures around
you can cause damage. Take all possible precautions to prevent st atic disch arge
damage when working with printed circuit boards.

Place each module on a grounded antistatic mat until you are ready to install
the module. If you do not have an antistatic mat, wear a wrist strap or
dischar ge leas h to free yourself of static before touchin g any of the modules, or
free y oursel f of stati c by t ouchin g th e metal chass is bef ore handling the module.

Installing a Switch Module

You can insert or remove a 10/100BASE-T switch module or a 100BASE-FX
switch module from a chassis while the power is on without int errupting serv ice in
the other modules. This ability is referred to as “hot-swapping.”

Note: EtherSpeedII switc h modules c an be hot- swapped in and out of a chas sis

at any time. However, before removing an active module from the Centillion
50/100 chassis, either unplug all port cables or disable all ports on the module.
This step deactivates the module. For additional information, see “

Module” on page 3-8.

3-2 207344-B

Removing a

Installing the EtherSpeedII Switch Modules

To install and secure the module in the chassis:

1. Remove the filler panel.

Using the medium flat-tip screwdriver, loosen the two captive retaining
screws on the filler panel unt il th ey pop fre e of the ch assis . Rotat e the le ft and
right inserter/extractor levers aw ay from the center of the filler panel to their
protruding positions and remove the filler panel (Figure 3-1

).

6463

Figure 3-1. Removing the Filler Panel

2.

Make sure the module inserter/extractor levers are protruding forward
(Figure 3-2

).

6464

Figure 3-2. Inserter/Extractor Levers Ready for Installation

207344-B 3-3

Using the Centillion EtherSpeedII Switch Modules

3. Align the left and right edges of the module in the guides on each side of

the slot (Figure 3-3

).

Figure 3-3. Slot Module Guides

Slide the module into the chassis until you feel it engage the backplane.

4.

The inserter/extractor levers should still be protruding and in contact
with the front of the chassis. Do not push the module all the way into the
chassis (Figure 3-4

).

6465

6466

Figure 3-4. Inserting the Module Until It Engages the Backplane

3-4 207344-B

Installing the EtherSpeedII Switch Modules

To seat the module onto the backpl ane, push the inserter/extrac to r l ev ers

5.

inward toward the module (Figure 3-5

Figure 3-5. Seating the Module

).

6537FA

When the front panel of the module is flush with the front of the chassis, the
module backplane connectors are properly seated.

6. Use the flat-tip screwdriver to tighten the captive retaining screw at each

end of the module front panel.

Note: The captive retaining scr ews on the module must be ti ghtene d to at least

2 inch-pounds, but no more than 4 inch-pounds, of torque. Finger tightening is
also adequate. Do not overtighten.

207344-B 3-5

Using the Centillion EtherSpeedII Switch Modules

Checking LEDs on the Switch Modules

If an EtherSpeedII 10/100BASE-T switch module is installed correctly, upon
power-up, all of the LEDs on the front panel light in a sequential pattern. As you
connect devices to the switch module’s ports, watch the LEDs on the front panel
(Figure 3-6

• The LINK LED lights green for each port showing link status.

• The 10/100 LEDs lights green when you have a 100 Mb/s Ethernet

connection and is off (no light) when you have a 10 Mb/s connection.

• The 10/100 LED lights amber if a line error is detected. Line errors may be

one or more CRC errors, data alignment errors, or frames that are too long.

). An established link displays the following LED color sequence:

LEDs

20 10/100BASE-T ports

Figure 3-6. LED Display for the 10/100BASE-T switch module

3-6 207344-B

(RJ-45)

LINK 10/100

9458FA

Installing the EtherSpeedII Switch Modules

If an EtherSpeedII 100BASE-FX switch module is installed correctly, upon
power-up, all of the LEDs on the front panel light in a sequential pattern. As you
connect devices to the switch module’s ports, watch the LEDs on the front panel
(Figure 3-7

).

• The LINK LED lights green for each port for which a link is established.

• The ERROR LED lights amber if a line error is detected. Line errors may be

one or more CRC errors, data alignment errors, or frames that are too long.

LEDs

16 100BASE-FX

ports (MT-RJ)

LINK ERROR

9458FB

Figure 3-7. LED Display for the EtherSpeedII 100BASE-FX Switch

Module

Note: See Appendix C, “LED Displays on the EtherSpeedII Switch Modules,”

for a complete descript ion of LED displays fo r the EtherS peedII 10/100BASE- T
and the EtherSpeedII 100BASE-FX switch modules.

207344-B 3-7

Using the Centillion EtherSpeedII Switch Modules

Making 10/100 Mb/s Cable Connections

The 10/100 Mb/s jacks on the Ethe rSpeedII 10/ 100BASE-T swit ch module acc ept
standard UTP or STP cable connections.

To connect network devices to the 10/100 Mb/s ports on the switch module,
follow these guidelines:

• Use Category 3 or 5 UTP cable or STP cable with RJ-45 connectors for the

ports on the switch module.

• Use straight-through cables to connect the network interface card (NIC) in a

PC workstation or server. These devices typically have MDI connectors.

• Use a crossover cable to connect to ports configured as MDI-X (such as

Ethernet hubs).

Note: For more information about cables, connectors, and connector pin

assignments, see Appendix B, “Cables and Connectors

.”

Removing a Module

You can hot-swap a 10/100BASE-T switch module or a 100BASE-FX switch
module at any time. However, to remove an active module from the Centillion 50/
100 chassis:

1. Disable all ports on the module us ing SpeedV i ew, or disconnect the cables

from each port .

Disabling the ports on a module is described in Using SpeedView 4.2 for
Windows.

Note: If the power for the Centillion 50/100 chassis is off, this step is not

necessary.

3-8 207344-B

Installing the EtherSpeedII Switch Modules

Wait 45 seconds.

2.

Waiting a llo ws th e sys t em so ftwa re t o pr oc ess the requ es ts t o di sabl e t he po rt s.

Caution: If you remove a module without waiting 45 seconds after disabling

the ports, you must power cycle the Centillion 50/100 chassis. When you turn
off the power on the chassis, you must wait 15 to 20 seconds before turning
the power back on. The switch modules begin switching an additi ona l 1 5 to 20
seconds after power is resumed.

3. Using the medium flat-tip screwdriver, loosen the two captive retaining

screws on the module until they pop free of the chassis.

4. Rotate the left and right inserter/extractor levers away from the center of

the module to their protruding positions (Figure 3-8

).

The module is disengaged from the backplane.

6470

Figure 3-8. Disengaging the Module

207344-B 3-9

Using the Centillion EtherSpeedII Switch Modules

5. Slide the switch module out of the chassis (Figure 3-9).

Hold the front panel with one hand whil e you support the bot tom of the switch
module with the other hand.

Figure 3-9. Removing the Module from the Centillion 50/100 Chassis

6471

Place the switch module on an antistatic mat unti l you are ready to put it

6.

back into the chassis.

7. If you are not in st all i ng anot her swi tch module of the same model, inst al l

a filler panel over the empty slot.

Installing the Replacement Switch Module

To install the replacement switch module, follow the procedure described in

“Installing a Switch Module

” on page 3-2.

Reconfiguring the Replacement Switch Module

The EtherSpeedII 10/100BASE-T and the EtherSpeedII 100BASE-FX switch
modules keep the configuration of an identical replacement module. If the
replacement is not of the same model ty pe, yo u must reco nfigur e the modul e afte r
it is replaced. Follow the procedure described in “

Modules” on page 3-2.

3-10 207344-B

Checking LEDs on the Switch

Chapter 4

Troubleshooting

This chapter provides suggestions for troubleshooting problems with the
EtherSpeedII 10/100BASE-T switch module or the EtherSpeedII 100BASE-FX
switch module and includes the following topics:

• EtherSpeedII switch module startup failure (page 4-2

• Port connection problems (page 4-3

To expedite support if you call Nortel Networks, have the following information
ready:

• Ha rdware configuration

• Software configuration (including the image file version number and

SpeedView version number)

• Network diagram

• Module or switch part number and serial number for the suspected module

• Brief description of the problem

)

)

207344-B 4-1

Using the Centillion EtherSpeedII Switch Modules

EtherSpeedII Switch Module Startup Failure

Symptom: All LEDs are solidly lit (do not blink) on the switch module.

To resolve the problem:

1. Ensure that an MCP module is present and operational with the

appropriate version of software.

• The EtherSpeedII 10/100BASE-T switch module requires version

4.1.2 software or greater.

• The EtherSpeedII 100BASE-FX switch module requires version

4.2.1 software or greater.

2. Ensure that all modules in the chassis are firmly seated and that the

retaining screws have been tightened.

3. Remove and reinsert the failing module.

If the probl em persists, contact the nearest Nortel Networks Technical
Solutions Center.

4-2 207344-B

Port Connection Problems

Symptom: The LED on a switch port is off.
If an LED does not light when traffic is present, there may be a port connection

problem.
To resolve the problem:

1. Verify whether or not the port is enabled, using SpeedView or the CLI.

a. From the Map window in SpeedView, choose Switch and then choose

Configure.

When the configuration information has been downloaded to the
management station, check the port state. The port state should be either
enabled or disabled.

b. From the Map window, choose Statistics.

When the statistics information has been downloaded to the management
station, check the po rt state. I f the port sta te is Down, the port i s rec eivin g
no link signal or is disabled.

Troubleshooting

c. From a configuration terminal connected to the serial port on the

switch, access the CLI.

Use the

show port command and specify the module number and port

number for the suspected port. When the port information is displayed,
verify that port_state is up and that the SPT state is forwarding.

2. Verify that the cable is correctly connected at both ends of the link.

Disconnect and reseat the cable at the switch module port, at the patch panel
or punchdown block, and at the device to which the link is attached. Check
the port LED for a change in status.

207344-B 4-3

Using the Centillion EtherSpeedII Switch Modules

3. Verify that the port is transmitting and receiving data frames.

a. Check the green RJ-45 LED, which indicates a data exchange.

Refer to Appendix C, “

LED Displays on the EtherSpeedII Switch

Modules,” for additional information.

b. From the Map window in SpeedView, choose Statistics.

When the statistics information is displayed at the management station,
verify that the octet counts for transmit and receive are incrementing.
Also verify that the frame counts for transmit and receive unicast traffic
and for multicast traffic are incrementing.

c. From a configuration terminal connected to the serial port on the

switch, access the CLI.

Use the

show port command and specify the module number and port

number for the suspected port. Verify that the following counters are
incrementing:

• InOctet

• OutOctet

• InUcastPkt

• OutUcastPkt

• MulticastTransmittedOk

• MulticastReceivedOk

• BroadcastTransmittedOk

• BroadcastReceivedOk

4. If the port still fails, try inserting it into another switch network or

shared segment.

If the port functions correctly, check the status of the first switch network or
shared segment.

If the port fails to function, contact the nearest Nortel Networks Technical
Solutions Center. Be ready to give the service representative the information
listed on page 4-1

4-4 207344-B

.

Appendix A

Technical Specifications

This appendix provides technical specifications for the EtherSpeedII switch
modules. For connector pin assignments and other information about cables,
see Appendix B, “Cables and Connectors

.”

Industry Protocols
and Standards

Interface Options EtherSpeedII 10/100BASE-T switch module:

Data Rates EtherSpeedII 10/100BASE-T switch module:

Autonegotiating Features EtherSpeedII 10/100BASE-T switch module:

Microprocessor 64-bit MIPS 5000 series processor, 200 MHz per module

ISO/IEC 8802-3 (ANSI/IEEE 802.3) Fifth Edition
1996-07-29
Clause 4: Medium Access Control
Clause 14: T wis ted - Pai r Mediu m Attachm en t Unit (MAU)
and Baseband Medium Type 10BASE-T

IEEE Std. 802.3u-1995, Media Access Control (MAC)
Parameters, Physical Layer, Medium Attachment Units,
and Repeater for 100 Mb/s Operation, Type 100BASE-T
(Clauses 21–30)

RJ-45 copper, twisted-pair connectors (8-pin modular)

EtherSpeedII 100BASE-FX switch module:

MT-RJ fiber-optic connectors

10/100 Mb/s switched Ethernet

EtherSpeedII 100BASE-FX switch module:

100 Mb/s switched Ethern et

10/100 Mb/s speed autone goti ati on

207344-B A-1

Using the Centillion EtherSpeedII Switch Modules

Memory

Processing
Dynamically Allocated
Buffer Pool
CAM (Content Addressable
Memory)

Electrical Specifications

Power Cons umption
Thermal Rating

Physical Specifications

Dimensions
Weight

Environmental
Specifications

Operating Temperature
Storage Temperature
Operating Humidit y
Storage Humidity
Operating Altitude
Free Fall/Drop
Vibration
Shock/Bump

Electromagnetic
Emissions

Electromagnetic
Susceptibility

Electrostatic Discharge
(ESD)
Radiated Electromagnetic
Field
Electrical Fast Transient
Burst
Electrical Surge

Safety Agency Approvals International Electrical Code of 950 (IEC 950)

8 MB
16 MB

8,192 entries

52 W (max)

194.5 BTU/hr (max)

(L) 10.5 in. x (W) 12.25 in. x (H) 1.0 in.
[(L) 26.7 cm x (W) 31.7 cm x (H) 2.5 cm
Module alone: 2.5 lbs (1.1 kg)

5° to 40° C (ambient)

-25° to 70° C (ambient)
85% maximum relative humidity, noncondensing
95% maximum relative humidity, noncondensing
10,000 ft (3,000 m) max
ISO 4180-s, NSTA 1A
IEC 68-2-6/34
IEC 68-2-27-29

Meets requirements of:
FCC Part 15, Subpart B, Class A
EN 55 022 (CISPR 22:1985), Class A
VCCI Class 1 ITE

EC 801-2, Level 2
EC 801-2, Level 2, EC 801-4, Level 2
IEC 801-5, Levels 1 and 2

Complies with EN 50082-1 (European CE mark
requirements)

Underwriters Laboratories (UL 1950)
Canadian Standards Association (C22.2 No. 950) or
Bi-national Standard (UL1950 and C22.2 No. 950)
equivalent to UL and cUL
European Union (EN60950)
Norma Oficial Mexicana (NOM-19-SCFI)
Meets UL-94-V1 (PWB) flammabilit y requirements

A-2 207344-B

Technical Specifications

Mean Time Between
Failure (MTBF) 177,000 hours

Cabling Specifications EtherSpeedII 10/100BASE-T switch module:

Types: Category 3 or 5 unshielded twisted pair (UTP)
or shielded twisted pair (STP)

Note: You can use Categ ory 3 UT P cable o nly for 10 Mb/s
port operation, not for 100 Mb/s or 10/100 Mb/s
autonegotiating port operation where the negotiated rate
may be 100 Mb/s.

-Maximum Length: 100 meters (cable plant and patch —
cables inclusive)

-Connector Types: Shielded RJ-45 connectors

EtherSpeedII 100BASE-FX switch module:

• MT-RJ to SC: Nortel Networks Part No. AA0018032

• MT-RJ to ST: Nortel Networks Part No. AA0018033

• MT-RJ to MT-RJ: Nortel Networks Part No.

AA0018034

*See the disclaimer on page ii of this manual.

207344-B A-3

This appendix provides general information about 10BASE-T and 100BASE-TX
cabling and connections.

UTP Cable Length Limitations

All 10BASE-T/100BASE-T ports on EtherSpeedII switch modules support the
maximum lengths for twisted pair cable that are specified in the IEEE 802.3
10BASE-T/100BASE-TX Ethernet specification. This specification defines the
maximum segment length in ter m s of th e per formance characteristics of the cable
media, which can vary according to cable type. In most networks, cable runs are
less than 100 meters (m) to ensure that data is not d istorted or lost.

Appendix B

Cables and Connectors

For UTP links of #24 AWG cable between a network interface (transceiver or
10BASE-T/100BASE-TX network interface card) and a hub or between hubs,
these performance specifications are normally met by a cable run of 100 m
(330 ft.) or less, including any patch cables and cross-connect cables. The
10BASE-T/100BASE-TX standard specifies this length as a design objective.
The EtherSpeedII switch module is designed to support a maximum cable length
of 100 m.

Your cable plant can contain Categor y 3 or 5 UTP ca bles, up t o a maximum le ngth
of 100 m between the end s tation a nd the swit ch module. Us e an appro priate pa tch
cable to connect your cable to this module.

207344-B B-1

Using the Centillion EtherSpeedII Switch Modules

UTP Cabling

A 10BASE-T/100BASE-TX connection between two ports requires two twisted
pairs. The transmit data (TD) pair carries data out from the p ort transmitter.
The receive data (RD) pair carries data in to the port receiver.

The 10BASE-T/100BASE-TX TD and RD circuits mus t be conne cted as follows:

• Individual conductors must provide pin-to-pin continuity (TD+ to RD+,
TD- to RD-, and so on) between the EtherSpeedII switch module port and the
attached MDI port on a transceiver or other network interface.

• Each signal circuit must use a single twisted pair throughout the link.

• Standard Ethernet patch panels and cables provide the previous features.

10BASE-T/100BASE-TX MDI Por ts and MDI-X Ports

In the 10BASE-T/100BASE-TX standard, MDI is the electrical and mechanical
interface specified for the 10BASE-T/100BASE-TX transceiver or network
interface card connector (for example, on the station at the end of a link).
MDI port pins 1 and 2 carry the transmit (TD) signal, and pins 3 and 6 carry the
receive (RD) signal as shown in Figure B-1

.

Transmit

Receive

MDI port network
interface card or
transceiver port

1
2

3
6

Twisted pairs

1

Transmit

2

3

Receive

6

Host module MDI-X port
(transmit and receive
connections reversed)

9729EA

Figure B-1. MDI-X Internal Crossover (RJ-45 Example)

B-2 207344-B

Cables and Connectors

The switch module receives data on pins 1 and 2 and transmits its data on pins
3 and 6. The host module ports impl ement this MDI standard cr oss over internally
and are called MDI-X (the X for crossover), as shown in Figure B-1

. All

EtherSpeedII switch module 10BASE-T ports are MDI-X standard.
Two simple rules govern all usual RJ-45 connections from each switch module

10BASE-T/100BASE-TX port to the 10BASE-T/100BASE-TX port on another
device:

• A straight-through cable (MDI to MDI-X) is customarily used for connection
to a station NIC, to a transceiver, or to a cable plant patch panel.

• A crossover cable or adapter (MDI-X to MDI-X; as shown in Figure B-2

) is

customarily used for connection to another switch or hub port.

Twisted

Receive

Transmit

MDI-X port

1
2

3
6

pairs

1

Receive

2

3

Transmit

6

MDI-X port

9730EA

Figure B-2. MDI-X to MDI-X External Crossover (RJ-45 Example)

Making the crossover externally with a crossover cable or adapter that exchanges
the TD and RD wire pairs (as shown in Figure B-2

) is possible but has the

following disadvantages:

• A crossover cable is not stand ard. You may need to special order one or make
your own.

• Crossover cables and standard cables that resemble one another in a network
can cause confusion.

Caution: Make any crossover cable you use look obviously different from

normal straight-through cables and put a tag on each end; for example, use a
distinctive color like yellow and put a tag labeled “X-over” on each end.

207344-B B-3

Using the Centillion EtherSpeedII Switch Modules

9721FA

Figure B-3 illustrates an MT-RJ connector.

Figure B-3. MT-RJ Connector

Table B-1 lists the optical specifications for multimode fiber.

Table B-1. Optical Specifications for Multimode Fiber Optic Cable

Description Specification

Fiber Type Duplex 62.5/125-micron fiber
Connector t ype MT-RJ
Link budget 6 dB
Maximum run length in full-duplex mode 2000 meters
Maximum run length in half-duplex mode 412 meters

Table B-2

lists the sp ecifications for multimo de fiber.

Table B-2. Specifications for Multimode Fiber Optic Transceivers

Description Specification

LED 1310 nm
Fiber Type Duplex 62.5/125-micron fiber
Mean launched power -20 to -14 dBm
Minimum receive sensitivity -26 dBm

B-4 207344-B

9475EA

1 2 3 4 5 6 7 8

UTP Cables and Connectors

Table B-3 shows the pin assignments for 10BASE-T/100BASE-TX ports in the

standard MDI-X configuration.

Table B-3. 10BASE-T/100BASE-TX MDI-X Port Pin Assignments

RJ-45 Connector Port Pin # MDI-X Ports

1 Receive data +

Cables and Connectors

2 Receive data –
3 Transmit data +
4 Not used
5 Not used
6 Transmi t data –
7 Not used
8 Not used

Figure B-4

shows a 10BASE-T/100BASE-TX Et hernet UTP crossov er cable used

to connect an Ethernet hub directly to the EtherSpeedII switch module.

1

RD+

2

RD-

3

TD+

TD-

4
5
6
7
8

Unused
Unused

Unused
Unused

Figure B-4. 10BASE-T/100BASE-TX Ethernet UTP Crossover Cable

207344-B B-5

1
2
3
4
5
6
7
8

RD+
RD­TD+
Unused
Unused
TD­Unused
Unused

6740.2

Using the Centillion EtherSpeedII Switch Modules

Pin 1 crosses to pin 3, and pin 2 crosses to pin 6. To build this cable, you must
cross pairs. The pairs are listed in Table B-4
combinations found in two typical cables.

T a ble B-4. Pairs in an RJ-45 Crossover Cable

, with an example of the color

Pairs

1 and 2 Orange/white and white/orange Orange and blue
3 and 6 Green/white and white/green Yellow and black
4 and 5 Blue/white and white/blue Red and green
7 and 8 Brown/white and white/brown Brown and gray

Example 1
Color Combinations

Example 2
Color Combinations

Using Category 5 Unshielded Twisted Pair Cables

Unshielded twisted pair (UTP) cable is the recommended wiring option for
100BASE-TX Fast Ethern et, as spec ifie d in the IEEE 80 2.3 st andard for Eth ernet .
Fast Ethernet recommended UTP cable consists of four pairs of twisted insulated
copper conductors bound in a single plastic sheath. The 100BASE-TX Fast
Ethernet transmissions are implemented through two-pair or four-pair Category 5
UTP wiring using standard shielded RJ-45 connectors. Category 5 cable is
certified to handle up to 100 MHz bandwidth. The EIA/TIA T568A standard
recommends the installation of Category 5 UTP cable for 100 Mb/s networks.

Use the following guidelines to ensure that your cables perform to specifications:

• Certification—Make sure that your Category 5 UTP cable has completed the
Underwriters Laboratories (UL) or Electronic Testing Laboratories (ETL)
certification process.

• Termi natin g method—To minimize crosstalk noise, maintain the twist ratio of
the cable up to the point of terminat ion (unt wist at any terminat ion shoul d not
exceed 0.5 in.).

• Pairing options—For optimal performance from your cable plant, use the
EIA-T568A Commercial Bu ilding Wiring Standard pairing option a t each end
of the cable. The terminating hardware offered by most major manufacturers
is correctly color-coded for proper wire placement according to that standard.

B-6 207344-B

6737

Using Shielded Twisted Pair Cables

T ype 1 shielded twisted pair (STP) cabling also operates with 10BASE-T Ethernet
and 100BASE-TX Fast Ethernet. Type 1 STP cable consists of tinned-copper
braided shield surr ounding two da ta -grade twis ted pa ir s of #22 AWG solid copper
conductors that have individual or S-shaped shields of aluminum-backed
insulating tape or metallized Mylar foil.

Note: A balanced unbalanced (balun) media adapter is required when

connecting 100-ohm RJ-45 100BASE-TX ports to a 150-ohm STP cable plant.
This adapter provides impedance matching between UTP (100-ohm) and STP
(150-ohm) cabling.

Type 1 cable generally is used between wiring closets or from the wiring closet
patch panel to the work area wall outlet.

Type 1 cable generally is terminated with an IBM four-position data connector.
Nortel Networks Fast Ethernet supports 100BASE-TX Fast Ethernet over STP
media through the application of a specialized balun media adapter, also referred
to as a Type 1 balun (Figure B-5
Fast Ethernet applications, balun media adapters are required at both the hub and
station ends of the STP cable plant. Media adapters (such as AMP part number
558421-1) are available that plug into the RJ-45 patch cable connectors, allowing
the patch cable to connect with an IBM data connector. The media adapter and
patch cable provide impedance matching between UTP (100-ohm) and STP
(150-ohm) cabling.

). When adapting 150-ohm STP cable plants for

Cables and Connectors

Figure B-5. Fast Ethernet Type 1 Balun Media Adapter

Note: For additional information about AMP Type 1 balun media adapters

(part number 558421-1), contact your AMP reseller or distributor. The user
should verify that the combination of the STP cable plant and the impedance­matching baluns meets the requirements of the applicable LAN standard.

207344-B B-7

Appendix C

LED Displays on the

EtherSpeedII Switch Modules

This appendix describes the LED displays for the Centillion EtherSpeedII 10/
100BASE-T 20-Port switch module and the Centillion EtherSpeedII
100BASE-FX 16-Port switch module.

The EtherSpeedII 10/100BASE-T switch module LED display (Figure C-1

)

consists of two LEDs for each port. The LEDs indicate specific operating status.

LEDs

20 10/100BASE-T ports

Figure C-1. LED Display for the EtherSpeedII 10/100BASE-T Switch

(RJ-45)

Module

LINK 10/100

9458FA

207344-B C-1

Using the Centillion EtherSpeedII Switch Modules

Table C-1 describes the operating conditions that cause the LEDs to light on the

switch module.

Table C-1. LEDs on the EtherSpeedII 10/100BASE-T Switch Module

Label Color/Status Meaning

LINK (port status) Green Link present

Yellow TX/RX activity
Off No link established

10/100 (port speed) Off Port operating at 10 Mb/s

Green Port operating at 100 Mb/s
Amber Line error

The port speed LED illuminates amber for
the following reasons:

• Frame too long

• CRC errors

• A l ignment errors

• Transmit and receive c ol lis ions (HDX mode)

C-2 207344-B

LED Displays on the EtherSpeedII Switch Modules

The EtherSpeedII 100BASE-FX switch module LED display (Figure C-2)
consists of two LEDs for each port. The LEDs indicate specific operating status.

LEDs

16 100BASE-FX

ports (MT-RJ)

Figure C-2. MT-RJ LEDs for the EtherSpeedII 100BASE-FX Switch

Module

LINK ERROR

9458FB

207344-B C-3

Using the Centillion EtherSpeedII Switch Modules

Table C-2 describes the operating conditions that cause the LEDs to light on the

switch module.

Table C-2. LEDs on the EtherSpeedII 100BASE-FX Switch Module

Label Color/Status Meaning

LINK (port status) Green Link present

Yellow TX/RX activity
Off No link established

ERROR Amber Line error

This port speed LED illuminates amber for the
following reasons:

• Frame too long

• CRC errors

• Alignment errors

• Transmit and receive collisions (HDX mode)

C-4 207344-B

Numbers

10/100BASE-T 20-port switch modu le

cable connections, 3-8
cable length limitations, B-1
factory default settings, 2-10
features, 1-2
filter parameters, 2-10
installing, 3-2
LAN performance, 2-1
LEDs, 1-6, C- 2
network configurat ion examples, 2-2
overview, 1-1
path cost parameters, 2-10
physical configuration, 2-1
physical descripti on, 1-4
port descriptio n, 1-10
port priority parameters, 2-10
port speed parameters, 2-10
port state parameters, 2-10
removing, 3-8
software requirements, 4-2
spanning tree group parameters, 2-10
STP parameters, 2-10
switching mode par ameters, 2-10
technical specifications, A-1
troubleshooting, 4-1

100BASE-FX 16-port switch module

factory default settings, 2-10
features, 1-2
fiber optic cable specifications, B-4
fiber optic transceiver specifications, B-4
filter parameters, 2-10
installing, 3-2
LAN performance, 2-1
LEDs, 1-6, C- 4
network configurat ion examples, 2-2
path cost parameters, 2-10
physical configuration, 2-2
physical descripti on, 1-5

Index

port priority parameters, 2-10
port state parameters, 2-10
removing, 3-8
software requirements, 4-2
spanning tree group parameters, 2-10
STP parameters, 2-10
switching mode parameters, 2-10
technical specifications, A-1
troubleshootin g, 4-1

802.1d standar d, 1-9

802.1Q tags, 1-3

A

ATM uplinks, 2-6
autonegotiation

features, 1-2, A-1
ports, 1-10

B

backbone switch, 2-7
BayStack switches, 2-8
bridge, replaced b y switch, 2-5

C

cable

10BASE-T Ether net UTP crossover, 3-8
Category 3 UTP, 3-8
Category 5 UTP, 3-8, B-6
connecting to EtherSpe e d po rt s, 3- 8
crossover, 2-2, B-3, B-6
EIA/TIA-T568A cable standard, B-6
length limits, B-1
RJ-45 crossover, B-6
STP, B-7
STP (shielded twisted pair), 3-8
straight-through, 2-2, B-3

207344-B Index-1

technical specifications, A-3
Typ e 1, B-7

UTP, B-2, B-6
cable length limitations, B-1
Category 3 UTP cabl e

connecting with, 3-8
Category 5 UTP cabl e

connecting with, 3-8, B-6
CLI, 1-8, 4-3
command line interface. See CLI
configuration

ATM uplinks, 2-6

desktop switch, 2-8

frame-to-cell converter, 2-8

network examples, 2-3

Optivity, 1-8

segment switch, 2-7

SpeedView, 1-1, 1-7

SpeedView predefined, 2-11
connections

multimode fiber, 2-2

problem, 4-3

to servers, 2-4
connectors

MT-RJ, B-4

RJ-45, 1-10, 3-8, B-5
crossover cable, 2-2, B-3, B-6
customer support, xvii

D

data rates, A-1
dedicated ports, 2-4
desktop switch, 2-6, 2-8

E

EIA/TIA-T568A cable standard, B-6
electrical specifications, A-2
electromagnetic emissions requireme nts, A-2
electromagnetic susceptibility, A-2
enterprise network, segment switch in, 2-7
environmental specifications, A-2

Ethernet hubs, con ne c tin g to, 2- 1
EtherSpeedII module faceplate, 1-4, 1-5
EtherSpeedII ports connection problems, 4-3

F

factory default settings

10/100BASE-T 20 -port switch module, 2-10
100BASE-FX 16-port switch module, 2-10

features

10/100BASE-T 20 - port switch module, 1- 2
100BASE-FX 16-port switch module, 1-2

filter parameters

10/100BASE-T 20 -port switch module, 2-10

100BASE-FX 16-port switch module, 2-10
filtering, 1-9
frame-to-cell converter, 2-8

H

hot-swapping, 1-10, 3-2, 3-8, 3-10
hubs, Ethernet

connecting the 10/100BASE-T 20 -po rt switch

module, 2-2

connecting the 100BASE-FX 16-po rt switch

module, 2-2

I

Industry Protocols an d Standards, A-1
installation

procedures, 3-3

tools and materials, 3-1

verifying, 3-6
interface options, A-1

L

LAN performance, improving, 2-1
LEDs

10/100BASE-T 20 - port switch module, 1- 6

100BASE-FX 16-port switch module, 1-6

annunciator, C-1, C-3

description, C-2, C -4

matrix illustration, C-1, C-3

verifying installation, 3-6

Index-2 207344-B

M

Management Information Base. See MIB
MCP

functions, 1-8
MCP (master control processor), 1-8
MDI connections, 2-2
MDI-X pin assignments, B-5
mean time between failure, A-3
media adapters, B-7
MIB, 1-8
MIB-I, MIB-II support, 1-8
microprocessor, series, A-1
MLT, 2-9
modules

installing, 3-3, 3-10

reconfiguring, 3- 10

removing, 3-8
MPOA (Multi-Protocol Over ATM), 1-3
MT-RJ connectors, B-4
MultiLink Tru n king. See MLT
multimode fiber

connections, 2-2

optical specifications, B-4

N

network bandwidth, increasing, 2-5
network configurat ion examples

10/100BASE-T 20-port switch modu le, 2-2

100BASE-FX 16-port switch module, 2-2

dedicated port for server, 2-4

frame-to-cell converter, 2-8

MultiLink Tru n kin g, 2- 9

network example, 2-3

overview, 1-2

replacing a bridge, 2-5

segment switch, 2-7
network devices

connecting the 10/100BAS E-T 20 -po rt switch

module, 2-2

connecting the 100BASE-FX 16-port switch

module, 2-2

network interface cards

configured as MDI connections, 2-2

connecting to, 3-8
network management features, 1-7
network managemen t software

Optivity, 1-8

SpeedView, 1-7

O

Optivity, configuring with, 1-8

P

path cost parameter s

10/100BASE-T 20 -port switch module, 2-10

100BASE-FX 16-port switch module, 2-10
physical configur ation

10/100BASE-T 20 - port switch module, 2- 1

100BASE-FX 16-port switch module, 2-2
physical descriptio n

10/100BASE-T 20 - port switch module, 1- 4

100BASE-FX 16-port switch module, 1-5
physical specifications, A-2
pin assignments

MDI port, B-2

MDI-X port, B-2, B-5
port

10/100BASE-T 20 - port switch module,

connections, 1-10
connection probl ems , 4-3
dedicated, 2-4
full/half-duplex settings, 2-10
MDI, B-2
MDI-X, 2-2, B-2, B-5

port priority parameters

10/100BASE-T 20 -port switch module, 2-10
100BASE-FX 16-port switch module, 2-10

port speed parameters

10/100BASE-T 20 -port switch module, 2-10

port state parameters

10/100BASE-T 20 -port switch module, 2-10
100BASE-FX 16-port switch module, 2-10

product support, xvii

207344-B Index-3

publications

hard copy, xvi
related, xvi

R

removal, 3-8
RFC 1213, 1-8
RJ-45 connectors, 3-8
RJ-45 crossover cable, B-6

S

safety agency approval, A-2
segment switch, 2-7
server

dedicated port, 2-4

improving response time, 2-4
shared media and switches , 2-7
SNMP support, 1-8
software requirements

10/100BASE-T 20-port switch modu le, 4-2

100BASE-FX 16-port switch module, 4-2
spanning tree group parameters

10/100BASE-T 20-port switch modu le, 2-10

100BASE-FX 16--port switch module, 2-10
Spanning Tree Protocol

parameters

10/100BASE-T 20-port switch modu le, 2-10
100BASE-FX 16-po rt switch module, 2-10

support, 1-9
specifications, technical, A-1
SpeedView

configuring with, 1-7

predefined configurations, 2-11

using for troubleshooting, 4-3

stackable switches, 2-8
STP (shielded tw isted pair) cable

guidelines, B-7

STP cable

connecting with, 3-8
straight-through cable, 2-2, B-3
support, Nortel Networks, xvii
switch module

configuration and management, 1-7

physical specifications, A-2

port connection problems, 4-3

startup failure , 4-2
switching mode parameters

10/100BASE-T 20 -port switch module, 2-10

100BASE-FX 16-port switch module, 2-10

T

technical publicati ons, xvi
technical specifications, A-1
technical support, xvii
troubleshootin g, 4-1

U

URL

Adobe Syst em s , xvi

hard-copy technical manuals, xvi
UTP (unshielde d tw is te d pa ir) ca b le guidelines, B-2,

B-6

V

VLANs

description, 1-9

protocol-ba sed, 1-3

support for, 1-9

Index-4 207344-B