Cabletron Systems SmartSTACK ETHERNET ELS10-27 User manual

SmartSTACK ETHERNET
ELS10-27 USER GUIDE
2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X
26
27
RESET
ELS10-27TX
EPIM100
PWR
CPU
ETHERNET SWITCH
25X 26X 27X
10BASE-T/100BASE-TX
COM
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
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LINK
STATUS
LINK
STATUS
LINK
STATUS
PORT STATUS MODE
STATUS TX ACT FDX MON
RX COL 100 USR
9032800-01

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 FOR ANY INCIDENTAL,
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR
THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH
DAMAGES.
 1999 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9032800-01 May 1999
Cabletron Systems , SPECTRUM , and LANVIEW are registered trademarks and SmartSTACK ,
ELS10-27TX , FEPIM , FEPIM-TX , and FEPIM-FX are trademarks of Cabletron Systems, Inc.
All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.

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

Notice
iii
CABLETRON SYSTEMS, INC.
PROGRAM LICENSE AGREEMENT
IMPORTANT: THIS LICENSEAPPLIES FOR USE OF PRODUCT INTHE FOLLOWING
GEOGRAPHICAL REGIONS:
CANADA
MEXICO
CENTRAL AMERICA
SOUTH AMERICA
BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT,
CAREFULLY READ THIS LICENSEAGREEMENT.
This document is an agreement (“Agreement”) betweenYou, the end user, and Cabletron
Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron
software program (“Program”) in the package. The Program may be contained in firmware, chips or
other media. 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, RETURN THE UNOPENED PRODUCT TO
CABLETRON ORYOUR DEALER, IF ANY, WITHIN TEN (10) DAYS FOLLOWING THE DATE
OF RECEIPT FOR A FULL REFUND.
IFYOU HAVE ANY QUESTIONS ABOUT THISAGREEMENT, CONTACT CABLETRON
SYSTEMS [phone]. Attn: Legal Department.
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.
4. EXPORT REQUIREMENTS. You understand that Cabletron and its Affiliates are subject to
regulation by agencies of the U.S. Government, including the U.S. Department of Commerce, which
prohibit export or diversion of certain technical products to certain countries, unless a license to export
the product is obtained from the U.S. Government or an exception from obtaining such license may be
relied upon by the exporting party.
If the Program is exported from the United States pursuant to the License Exception CIV under
the U.S. Export Administration Regulations,You agree thatYou are a civil end user of the Program
and agree thatYou will use the Program for civil end uses only and not for military purposes.

Notice
iv
If the Program is exported from the United States pursuant to the License Exception TSR under
the U.S. Export Administration Regulations, in addition to the restriction on transfer set forth in
Sections 1 or 2 of this Agreement,You agree not to (i) reexport or release the Program, the source
code for the Program or technology to a national of a country in Country Groups D:1 or E:2 (Albania,
Armenia, Azerbaijan, Belarus, Bulgaria, Cambodia, Cuba, Estonia, Georgia, Iraq, Kazakhstan,
Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China,
Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukraine, Uzbekistan, Vietnam, or such other
countries as may be designated by the United States Government), (ii) export to Country Groups D:1
or E:2 (as defined herein) the direct product of the Program or the technology, if such foreign
produced direct product is subject to national security controls as identified on the U.S. Commerce
Control List, or (iii) if the direct product of the technology is a complete plant o r any major
component of a plant, export to Country Groups D:1 or E:2 the direct product of the plant or a major
component thereof, if such foreign produced direct product is subject to national security controls as
identified on the U.S. Commerce Control List or is subject to State Department controls under the
U.S. Munitions List.
5. UNITED STATES GOVERNMENT RESTRICTED RIGHTS. The enclosed Product (i)
was developed solely at private expense; (ii) contains “restricted computer software” submitted with
restricted rights in accordance with section 52.227-19 (a) through (d) of the Commercial Computer
Software-Restricted Rights Clause and its successors, and (iii) in all respects is proprietary data
belongingto Cabletron and/or its suppliers.For Department of Defense units,the Product is considered
commercial computer software in accordance with DFARS section 227.7202-3 and its successors, and
use, duplication, or disclosure by the Government is subject to restrictions set forth herein.
6. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including its
documentation and media).
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE ACCOMPANYING
WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.
7. 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 IN THE DURATION OR LIMITATION OF IMPLIED
WARRANTIES IN SOME INSTANCES, THE ABOVE LIMITATION AND EXCLUSIONS MAY
NOT APPLY TO YOU.

Notice
v
CABLETRON SYSTEMS SALES AND SERVICE, INC.
PROGRAM LICENSE AGREEMENT
IMPORTANT: THIS LICENSE APPLIES FOR USE OF PRODUCT IN THE UNITED
STATES OF AMERICA AND BY UNITED STATES OF AMERICA
GOVERNMENT END USERS.
BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT,
CAREFULLY READ THIS LICENSEAGREEMENT.
This document is an agreement (“Agreement”) betweenYou, the end user, and Cabletron Systems
Sales and Service, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the
Cabletron software program (“Program”) in the package. The Program may be contained in firmware,
chips or other media. UTILIZING THE ENCLOSED PRODUCT,YOU ARE AGREEING TO
BECOME BOUND BY THE TERMS OF THISAGREEMENT, WHICH INCLUDES THE
LICENSE AND THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF
YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, RETURN THE UNOPENED
PRODUCT TO CABLETRON ORYOUR DEALER, IF ANY, WITHIN TEN (10) DAYS
FOLLOWING THE DATE OF RECEIPT FOR A FULL REFUND.
IFYOU HAVE ANY QUESTIONS ABOUT THISAGREEMENT, CONTACT CABLETRON
SYSTEMS [phone]. Attn: Legal Department.
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.
4. EXPORT REQUIREMENTS. You understand that Cabletron and its Affiliates are subject to
regulation by agencies of the U.S. Government, including the U.S. Department of Commerce, which
prohibit export or diversion of certain technical products to certain countries, unless a license to export
the product is obtained from the U.S. Government or an exception from obtaining such license may be
relied upon by the exporting party.
If the Program is exported from the United States pursuant to the License Exception CIV under
the U.S. Export Administration Regulations,You agree thatYou are a civil end user of the Program
and agree thatYou will use the Program for civil end uses only and not for military purposes.

Notice
vi
If the Program is exported from the United States pursuant to the License Exception TSR under
the U.S. Export Administration Regulations, in addition to the restriction on transfer set forth in
Sections 1 or 2 of this Agreement,You agree not to (i) reexport or release the Program, the source
code for the Program or technology to a national of a country in Country Groups D:1 or E:2 (Albania,
Armenia, Azerbaijan, Belarus, Bulgaria, Cambodia, Cuba, Estonia, Georgia, Iraq, Kazakhstan,
Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China,
Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukraine, Uzbekistan, Vietnam, or such other
countries as may be designated by the United States Government), (ii) export to Country Groups D:1
or E:2 (as defined herein) the direct product of the Program or the technology, if such foreign
produced direct product is subject to national security controls as identified on the U.S. Commerce
Control List, or (iii) if the direct product of the technology is a complete plant o r any major
component of a plant, export to Country Groups D:1 or E:2 the direct product of the plant or a major
component thereof, if such foreign produced direct product is subject to national security controls as
identified on the U.S. Commerce Control List or is subject to State Department controls under the
U.S. Munitions List.
5. UNITED STATES GOVERNMENT RESTRICTED RIGHTS. The enclosed Product (i)
was developed solely at private expense; (ii) contains “restricted computer software” submitted with
restricted rights in accordance with section 52.227-19 (a) through (d) of the Commercial Computer
Software-Restricted Rights Clause and its successors, and (iii) in all respects is proprietary data
belongingto Cabletron and/or its suppliers.For Department of Defense units,the Product is considered
commercial computer software in accordance with DFARS section 227.7202-3 and its successors, and
use, duplication, or disclosure by the Government is subject to restrictions set forth herein.
6. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including its
documentation and media).
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE ACCOMPANYING
WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.
7. 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 IN THE DURATION OR LIMITATION OF IMPLIED
WARRANTIES IN SOME INSTANCES, THE ABOVE LIMITATION AND EXCLUSIONS MAY
NOT APPLY TO YOU.

Notice
vii
CABLETRON SYSTEMS LIMITED
PROGRAM LICENSE AGREEMENT
IMPORTANT: THIS LICENSE APPLIES FOR THE USE OF THE PRODUCT IN THE
FOLLOWING GEOGRAPHICAL REGIONS:
EUROPE
MIDDLE EAST
AFRICA
ASIA
AUSTRALIA
PACIFIC RIM
BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT,
CAREFULLY READ THIS LICENSEAGREEMENT.
This document is an agreement (“Agreement”) betweenYou, the end user, and Cabletron
Systems Limited (“Cabletron”) that sets forth your rights and obligations with respect to the
Cabletron software program (“Program”) in the package. The Program may be contained in firmware,
chips or other media. UTILIZING THE ENCLOSED PRODUCT,YOU ARE AGREEING TO
BECOME BOUND BY THE TERMS OF THISAGREEMENT, WHICH INCLUDES THE
LICENSE AND THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF
YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, RETURN THE UNOPENED
PRODUCT TO CABLETRON ORYOUR DEALER, IF ANY, WITHIN TEN (10) DAYS
FOLLOWING THE DATE OF RECEIPT FOR A FULL REFUND.
IFYOU HAVE ANY QUESTIONS ABOUT THISAGREEMENT, CONTACT CABLETRON
SYSTEMS [phone]. Attn: Legal Department.
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 governed in accordance with English
law. The English courts shall have exclusive jurisdiction in the event of any disputes.
4. EXPORT REQUIREMENTS. You understand that Cabletron and its Affiliates are subject to
regulation by agencies of the U.S. Government, including the U.S. Department of Commerce, which
prohibit export or diversion of certain technical products to certain countries, unless a license to export
the product is obtained from the U.S. Government or an exception from obtaining such license may be
relied upon by the exporting party.
If the Program is exported from the United States pursuant to the License Exception CIV under
the U.S. Export Administration Regulations,You agree thatYou are a civil end user of the Program
and agree thatYou will use the Program for civil end uses only and not for military purposes.

Notice
viii
If the Program is exported from the United States pursuant to the License Exception TSR under
the U.S. Export Administration Regulations, in addition to the restriction on transfer set forth in
Sections 1 or 2 of this Agreement,You agree not to (i) reexport or release the Program, the source
code for the Program or technology to a national of a country in Country Groups D:1 or E:2 (Albania,
Armenia, Azerbaijan, Belarus, Bulgaria, Cambodia, Cuba, Estonia, Georgia, Iraq, Kazakhstan,
Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China,
Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukraine, Uzbekistan, Vietnam, or such other
countries as may be designated by the United States Government), (ii) export to Country Groups D:1
or E:2 (as defined herein) the direct product of the Program or the technology, if such foreign
produced direct product is subject to national security controls as identified on the U.S. Commerce
Control List, or (iii) if the direct product of the technology is a complete plant o r any major
component of a plant, export to Country Groups D:1 or E:2 the direct product of the plant or a major
component thereof, if such foreign produced direct product is subject to national security controls as
identified on the U.S. Commerce Control List or is subject to State Department controls under the
U.S. Munitions List.
5. UNITED STATES GOVERNMENT RESTRICTED RIGHTS. The enclosed Product (i)
was developed solely at private expense; (ii) contains “restricted computer software” submitted with
restricted rights in accordance with section 52.227-19 (a) through (d) of the Commercial Computer
Software-Restricted Rights Clause and its successors, and (iii) in all respects is proprietary data
belongingto Cabletron and/or its suppliers.For Department of Defense units,the Product is considered
commercial computer software in accordance with DFARS section 227.7202-3 and its successors, and
use, duplication, or disclosure by the Government is subject to restrictions set forth herein.
6. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including its
documentation and media).
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE ACCOMPANYING
WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.
7. 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 IN THE DURATION OR LIMITATION OF IMPLIED
WARRANTIES IN SOME INSTANCES, THE ABOVE LIMITATION AND EXCLUSIONS MAY
NOT APPLY TO YOU.

Notice
ix
DECLARATION OF CONFORMITY
Application of Council Directive(s): 89/336/EEC
73/23/EEC
Manufacturer’s Name: Cabletron Systems, Inc.
Manufacturer’s Address: 35 Industrial Way
PO Box 5005
Rochester, NH 03867
European Representative Name: Mr. J. Solari
European Representative Address: Cabletron Systems Limited
Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG13 2PZ, England
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC
EC Directive 73/23/EEC
EN 55022
EN 50082-1
EN 60950
Equipment Type/Environment: Networking Equipment, for use in a
Commercial or Light
Industrial
Environment.
We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged
with this notice conforms to the above directives.
Manufacturer Legal Representative in Europe
Mr. Ronald Fotino Mr. J. Solari
___________________________________ ___________________________________
Full Name Full Name
Compliance Engineering Manager Managing Director - E.M.E.A.
___________________________________ ___________________________________
Title Title
Rochester, NH, USA Newbury, Berkshire, England
___________________________________ ___________________________________
Location Location

Notice
x

xi
CONTENTS
CHAPTER 1 INTRODUCTION
1.1 About This Manual..................................................................................1-1
1.2 Getting Help .............................................................................................1-2
1.3 Document Conventions ..........................................................................1-3
1.4 Related Documentation...........................................................................1-4
1.5 Overview...................................................................................................1-4
1.5.1 SmartSTACK Ethernet ELS10-27 Architecture..........................1-5
1.5.2 SmartSTACK Ethernet ELS10-27 Functionality ........................1-5
1.5.3 SmartSTACK Ethernet ELS10-27 Bridge Address Table........1-10
1.5.4 SmartSTACK Ethernet ELS10-27 Port Mirroring....................1-11
1.5.5 SmartSTACK Ethernet ELS10-27 Sample Applications .........1-12
1.5.6 VLANs..........................................................................................1-13
1.5.7 Configuration Commands..........................................................1-15
1.6 Local Console Manager.........................................................................1-16
1.6.1 Command Syntax Conventions.................................................1-17
CHAPTER 2 UNPACKING AND INSTALLING YOUR
SMARTSTACK ETHERNET ELS10-27
2.1 SmartSTACK Ethernet ELS10-27 Front Panel......................................2-2
2.1.1 Indicators ........................................................................................2-4
2.2 Installing an EPIM ...................................................................................2-5
2.3 Installing the SmartSTACK Ethernet ELS10-27...................................2-6
2.4 Checking the Power-up Diagnostics Sequence ...................................2-8
2.5 Connecting the Local Console Manager...............................................2-9
2.6 Connecting To the Network .................................................................2-10
2.6.1 Connecting UTP Cables ..............................................................2-10
2.6.2 Connecting a Multimode Segment to the EPIM100-FX .........2-12
CHAPTER 3 CONFIGURING YOUR
SMARTSTACK ETHERNET ELS10-27
3.1 Assigning IP Addresses ..........................................................................3-2
3.1.1 IP Address Configuration.............................................................3-2
3.1.2 Displaying IP Addresses...............................................................3-4
3.1.3 Deleting an IP Address .................................................................3-5
3.1.4 Changing a Subnet Mask..............................................................3-5
3.1.5 Setting the Default Gateway ........................................................3-5
3.2 Operational Image ...................................................................................3-6
3.3 IGMP..........................................................................................................3-7
3.4 Enabling Bridging ....................................................................................3-9
3.5 Disabling Bridging...................................................................................3-9

xii
Contents
3.6 Displaying Bridging Functions ............................................................3-10
3.7 Enabling Trunking .................................................................................3-10
3.8 Disabling Trunking................................................................................3-12
3.9 Displaying Trunking Status..................................................................3-12
3.10 Port Mirroring.......................................................................................3-14
3.11 Defining and Deleting Workgroups..................................................3-14
3.12 Assigning a ComMunity Name .........................................................3-16
3.13 Configuring Broadcast/Multicast Storm Protection.......................3-17
3.14 Modifying MIB Variables....................................................................3-17
3.15 System Contact .....................................................................................3-18
3.16 System Name ........................................................................................3-18
3.16.1 System Location .........................................................................3-18
3.16.2 Community Names....................................................................3-19
3.16.3 Aging Parameter ........................................................................3-19
CHAPTER 4 MONITORING AND MANAGING YOUR
SMARTSTACK ETHERNET ELS10-27
4.1 SmartSTACK Ethernet ELS10-27 Management Tools ........................4-1
4.2 MIB Support..............................................................................................4-2
4.3 RMON Support ........................................................................................4-2
4.3.1 RMON High Level Description ...................................................4-3
4.3.2 RMON Details ................................................................................4-5
4.4 SmartSTACK Ethernet ELS10-27 Statistics...........................................4-6
4.4.1 Gathering Statistics ........................................................................4-7
4.4.2 System Statistics .............................................................................4-7
4.4.3 Ethernet Port Statistics ..................................................................4-8
4.5 Using LCM to Check SmartSTACK Ethernet ELS10-27 .....................4-8
4.5.1 Displaying Status ...........................................................................4-9
4.5.2 Displaying MAC Addresses.......................................................4-10
4.5.3 Displaying Manufacturing Information ...................................4-12

Contents
xiii
CHAPTER 5 SMARTSTACK ETHERNET ELS10-27
DIAGNOSTICS AND TROUBLESHOOTING
5.1 Power-up Diagnostics .............................................................................5-1
5.1.1 Power-up LED Sequence ..............................................................5-1
5.1.2 Specific Power-up Tests ................................................................5-2
5.1.3 Power-up Diagnostics Results .....................................................5-2
5.2 Responses to Failures at Power-up .......................................................5-2
5.3 Status and Activity Indicators................................................................5-3
5.4 Troubleshooting .......................................................................................5-5
5.5 SmartSTACK Ethernet ELS10-27 Does Not Power Up.......................5-5
5.5.1 Connectivity Problems..................................................................5-5
5.5.2 SmartSTACK Ethernet ELS10-27 Has Rebooted .......................5-5
5.5.3 SmartSTACK Ethernet ELS10-27 Does Not Respond
to NMS............................................................................................5-6
APPENDIX A TECHNICAL SPECIFICATIONS
A.1 SmartSTACK Ethernet ELS10-27 Specifications................................A-1
A.2 Serial Cable Pin Assignments ..............................................................A-3
A.3 10BASE-T Pin Assignments..................................................................A-4
A.4 Straight-through Wiring .......................................................................A-5
A.5 Crossover Wiring...................................................................................A-5
A.6 5 - 4 - 3 Rule.............................................................................................A-6
A.7 EPIM-100FX ............................................................................................A-6

xiv
Contents

1-1
CHAPTER 1
INTRODUCTION
1.1 ABOUTTHIS MANUAL
This manual is for system administrators responsible for conÞguring,
monitoring, and maintaining the SmartSTACK Ethernet ELS10-27TX (also
referred to as ELS10-27). You should have a familiarity with networking
concepts and principles. In addition, a basic understanding of SNMP is
helpful.
Some SmartSTACK Ethernet ELS10-27 conÞgurations can only be done
using an SNMP-based Network Management System (NMS). Where
applicable, this manual provides instructions for using the Local Console
Manager (LCM) to perform basic conÞguration. Where it is not possible to
use LCM, general instructions and guidelines applicable to most NMSs
are provided.
The contents of each chapter are described below.
¥ Chapter 1, Introduction , outlines the contents of this manual and
provides an overview of the SmartSTACK Ethernet ELS10-27Õs
switching functions, applications, and the Local Console Manager
(LCM).
¥ Chapter 2, Unpacking and Installing Your SmartSTACK Ethernet
ELS10-27 , describes the SmartSTACK Ethernet ELS10-27 front and rear
panels, how to install the SmartSTACK Ethernet ELS10-27, how to
connect the Local Console Manager (LCM), and how to connect the
ELS10-27 to the network.
¥ Chapter 3, Configuring Your SmartSTACK Ethernet ELS10-27 ,
provides instructions for conÞguring the SmartSTACK Ethernet
ELS10-27 using the Local Console Manager (LCM). It also provides
some common Management Information Base (MIB) variables you
may want to change.
¥ Chapter 4, Monitoring and Managing Your SmartSTACK Ethernet
ELS10-27 , describes how to monitor SmartSTACK Ethernet ELS10-27
status and statistics. It also describes how to manage the SmartSTACK
Ethernet ELS10-27 Ethernet ports using the Local Console Manager
(LCM).

1-2
Introduction
¥ Chapter 5, SmartSTACK Ethernet ELS10-27 Diagnostics and
Troubleshooting , describes the SmartSTACK Ethernet ELS10-27
diagnostics and provides information on troubleshooting common
problems.
¥ Appendix A, Technical Specifications , provides the SmartSTACK
Ethernet ELS10-27 speciÞcations and basic cabling pin assignments.
¥ Index provides a glossary of terms speciÞc to the SmartSTACK
Ethernet ELS10-27 and the page(s) on which they are explained within
this manual.
1.2 GETTING HELP
For additional support related to this device or document, contact
Cabletron Systems using one of the following methods:
Before calling Cabletron Systems, have the following information ready:
¥ Your Cabletron Systems service contract number
¥ A description of the failure
¥ A description of any action(s) already taken to resolve the problem
(e.g., changing mode switches, rebooting the unit, etc.)
¥ The serial and revision numbers of all involved Cabletron Systems
products in the network
¥ A description of your network environment (layout, cable type, etc.)
World Wide Web http://www.cabletron.com/
Phone [phone]
Internet mail suppor[email protected]
FTP ftp://ftp.cabletron.com/
Login
anonymous
Password your email address
To send comments or suggestions concerning this document, contact the
Cabletron SystemsTechnical Writing Department via the following
email address: [email protected]
Make sure to include the document Part Number in the email message.

Introduction
1-3
¥ Network load and frame size at the time of trouble (if known)
¥ The device history (i.e., have you returned the device before, is this a
recurring problem, etc.)
¥ Any previous Return Material Authorization (RMA) numbers
1.3 DOCUMENT CONVENTIONS
The following conventions are used throughout this document:
LCM commands, prompts, and information displayed by the computer
appear in Courier typeface, for example:
Current Number of Learned Addresses: 133
Information that you enter appears in Courier bold typeface, for example:
ELS10-27 > status
Information that you need to enter with a command is enclosed in angle
brackets < >. For example, you must enter an IP address to execute the
ipaddr <IP address>
command:
ELS10-27 > ipaddr 192.138.217.40
Field value options appear in bold typeface.
The following conventions are also used in this document:
Note: Calls the readerÕs attention to any item of information that may be of
special importance.
Tip: Conveys helpful hints concerning procedures or actions.
Caution: Contains information essential to avoid damage to the equipment.
Warning: Warns against an action that could result in equipment damage,
personal injury or death.

1-4
Introduction
1.4 RELATED DOCUMENTATION
The following documentation may assist the user in using this product:
¥ 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 © Second Edition, 1994.
1.5 OVERVIEW
The SmartSTACK Ethernet ELS10-27 provides a low cost, high
performance solution for 10/100 Mbps switched networks. The
SmartSTACK Ethernet ELS10-27TX is conÞgured with twenty-seven RJ45
ports supporting twenty-four autonegotiating 10 Mbps ports and three
autonegotiating 10/100 Mbps ports. The device also features two EPIM-
100 slots that allow the user to install up to two EPIM-100s to provide
multimode Þber uplinks (with potential for single mode Þber). It also
includes an RS232C port for out-of-band management.
.
Figure 1-1. SmartSTACK Ethernet ELS10-27 Front Panel
The SmartSTACK Ethernet ELS10-27:
¥ Provides dedicated bandwidth for each network connected to its ports.
¥ Provides full store and forward bridging functionality.
¥ Provides complete error checking functionality.
2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X
26
27
RESET
ELS10-27TX
EPIM100
PWR
CPU
ETHERNET SWITCH
25X 26X 27X
10BASE-T/100BASE-TX
COM
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
LINK
STATUS
PORT STATUS MODE
STATUS TX ACT FDX MON
RX COL 100 USR