Enterasys Networks ELS10-27TX User Manual

SmartSTACK ETHERNET

ELS10-27TX SUPPLEMENT

ETHERNET SWITCH

ELS10-27TX

RESET

LINK

LINK

LINK

LINK

LINK

LINK

LINK

LINK

LINK

STATUS

STATUS

STATUS

STATUS

STATUS

PORT STATUS MODE

STATUS

PWR

TX ACT FDX MON

CPU

COM

RX COL 100 USR

2X 4X 6X 8X 10X 12X 14X 16X 18X 20X 22X 24X

STATUS

LINK

STATUS

STATUS

STATUS

STATUS

10BASE-T/100BASE-TX

LINK

LINK

STATUS

STATUS

LINK

LINK

STATUS

25X 26X 27X

EPIM100

26

LINK

STATUS

STATUS

27

9033517

Only qualified personnel should perform installation
procedures.

NOTICE

Cabletron Systems reserves t he ri ght to make changes in specifications a nd other information
contained in this docum e nt wit hout prior notice. The reade r shoul d in all cases consult Cabletron
Systems to determine whethe r any such c hanges have been made.

The hardware, firmwa re, or soft ware described in this manual is subject to change withou t notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL,

INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR
THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH
DAMAGES.

Cabletron Systems, Inc.
35 Industrial Way
Rochester, NH 03867

2000 by Cabletron Systems, Inc.



All Rights Reserved
Printed in the United States of America

Order Number: 9033517 May 2000

Cabletron Systems is a registered trademark: SmartSTACK and ELS10-27TX are trademarks of
Cabletron Systems, Inc.

All other product names mentioned in this manual may be trademarks or registered trademar ks of
their respective companies.

i

Notice

FCC NOTICE

This device compli es wit h Part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) this devi ce ma y not cause harmful interfe re nce, and (2) this device must ac ce pt any
interference received, including inte rfe rence 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 t he FCC rules. These limits are de signed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment.
This equipment use s , ge ne rates, and can radiate ra dio frequency energy and if not installed in

accordance with the o perator’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 corre ct the interference at his own expe nse .

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

party responsible for co mpliance could void the user’s authority to opera te the equipment.

INDUSTRY CANADA NOTICE

This digital apparatus does not exceed the Class A limits for radio noi s e em i ssions from digital
apparatus set out in the Ra di o Interference Regulations of the Canadian Department of
Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables
aux appareils numérique s de la cl ass A pre scri tes dans le Règlement sur le brouilla ge radioélectrique
édicté par le ministère des Communications du Ca nada.

VCCI NOTICE

This is a Class A product based on th e sta n dard of the Voluntary Control Counci l for Interference by
Information Technology Equipment (VCCI). If this equipment is use d in a domestic environme nt ,
radio disturbance may ari s e. W h e n such trouble occurs, the user m ay be required to take correcti ve
actions.

ii

Notice

CABLETRON SYSTEMS, INC.

PROGRAM LICENSE AGREEMENT

IMPORT ANT: THIS LICENSE APPLIES FOR USE OF PRODUCT IN THE FOLLOWING

GEOGRAPHICAL REGIONS:

CANADA
MEXICO
CENTRAL AMERICA
SOUTH AMERICA

BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT,
CAREFULLY READ THIS LICENSE AGREEMENT.

This document is an agre em ent (“Agreement”) between You, the end user, and Cabletron Systems,
Inc. (“Cabletron”) tha t set s forth your rights and obligations with respect to the Cable tron 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. IF YOU DO NOT AGREE
TO THE TERMS OF THIS AGREEMENT, RETURN THE UNOPENED PRODUCT TO
CABLETRON OR YOUR DEALER, IF ANY, WITHIN TEN (10) DA YS FOLLOWING THE DA TE
OF RECEIPT FOR A FULL REFUND.

IF YOU HAVE ANY QUESTIONS ABOUT THIS AGREEMENT, CONTACT CABLETRON
SYSTEMS [phone]. Attn: Legal Department.

1. LICENSE. You have the righ t to use only the one (1) copy of the Program provided in this
package subject to the terms and con d it ions of this License A greement.

You may not copy, reproduce or transmit any part of the Program except as permitted by the
Copyright Act of the Unite d States or as authorized in wr it ing by Cabletron.

2. OTHER RESTRICTIONS. You may not reve rse engi neer, decompile, or disasse m b l e th e
Program.

3. APPLICABLE LAW. This License Agreement shall be interpre ted and governed under the
laws and in the sta t e and federal courts of N ew Hampshire. You accept the person al 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, in cl udi ng the U.S. Department of Comme r c e, 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 export ing party.

If the Program is exported from the United States pursuant to the License Exception CIV under
the U.S. Export Adminis tra ti on Regulations, You agree that You are a civil end user of the Pro gra m
and agree that You will use the Program for civil end us es onl y and not for military purposes.

iii

Notice

If the Program is exported from the United States pursuant to the License Exception TSR under

the U.S. Export Adminis tra ti on 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, Camb odi a, Cuba, Estonia, Georgia, Iraq, Kaz akhstan,

Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China,
Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukrain e, 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 dire ct product of the Program or the te chnology, if such foreign
produced direct produc t is subject to national securit y c ontrols as identified on the U.S. Co m me rce
Control List, or (iii) if the dire ct product of the technology is a com plete 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 direc t product is subject to national security controls as
identified on the U.S. Commerce Control List or is subje ct to State Department con trols under the
U.S. Munitions List.

5. UNITED STATES GOVERNMENT REST RICTE D RIGHTS. The enclosed Product (i)
was developed solely at private expense; (ii) conta ins “restricted computer software” submitted with
restricted rights in acc ordance with section 52.227-19 (a) through (d) of the Commercial Co m puter
Software-Restricted Rights Cl ause and its successors, and (iii) in all respe c ts is pro pri etary data
belonging to 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 disclosu re by the Government is subject to restr ic ti ons se t fort h herein.

6. EXCLUSION OF WARRANTY. E xcept as may be speci fically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, conc erning 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.

iv

Notice

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 LICENSE AGREEMENT.

This document is an agre em ent (“Agreement”) between You, the end user, and Cabletron Systems
Sales and Service, Inc. (“Cabletron”) that sets forth yo ur 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. IF
YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT, RETURN THE UNOPENED
PRODUCT TO CABLETRON OR YOUR DEALER, IF ANY, WITHIN TEN (10) DAYS
FOLLOWING THE DATE OF RECEIPT FOR A FULL REFUND.

IF YOU HAVE ANY QUESTIONS ABOUT THIS AGREEMENT, CONTACT CABLETRON
SYSTEMS [phone]. Attn: Legal Department.

1. LICENSE. You have the right to use only the on e (1) c opy of the Program provided in this
package subject to the terms and con d it ions of this License A greement.

You may not copy, reproduce or transmit any part of the Program except as permitted by the
Copyright Act of the Unite d States or as authorized in wr it ing by Cabletron.

2. OTHER RESTRICTIONS. You may not reve rse engineer, decompile, or disassemble the Program.

3. APPLICABLE LAW. This License Agreement shall be in te rpreted and governed under t he
laws and in the sta t e and federal courts of N ew Hampshire. You accept the person al 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, in cl udi ng the U.S. Department of Comme r c e, 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 export ing party.

If the Program is exported from the United States pursuant to the License Exception CIV under
the U.S. Export Adminis tra ti on Regulations, You agree that You are a civil end user of the Pro gra m
and agree that You will use the Program for civil end us es onl y and not for military purposes.

v

Notice

If the Program is exported from the United States pursuant to the License Exception TSR under

the U.S. Export Adminis tra ti on 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, Camb odi a, Cuba, Estonia, Georgia, Iraq, Kaz akhstan,

Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China,
Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukrain e, 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 dire ct product of the Program or the te chnology, if such foreign
produced direct produc t is subject to national securit y c ontrols as identified on the U.S. Co m me rce
Control List, or (iii) if the dire ct product of the technology is a com plete 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 direc t product is subject to national security controls as
identified on the U.S. Commerce Control List or is subje ct to State Department con trols under the
U.S. Munitions List.

5. UNITED STATES GOVERNMENT REST RICTE D RIGHTS. The enclosed Product (i)
was developed solely at private expense; (ii) conta ins “restricted computer software” submitted with
restricted rights in acc ordance with section 52.227-19 (a) through (d) of the Commercial Co m puter
Software-Restricted Rights Cl ause and its successors, and (iii) in all respe c ts is pro pri etary data
belonging to 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 disclosu re by the Government is subject to restr ic ti ons se t fort h herein.

6. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, conc erning 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.

vi

Notice

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 LICENSE AGREEMENT.

This document is an agre em ent (“Agreement”) between You, the end user, and Cabletron Systems
Limited (“Cabletro n” ) tha t se ts forth your rights and obliga ti ons wit h respect to the Cabletron
software program (“Program ”) in the pac kage. The Program may be contain ed 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. IF YOU DO NOT
AGREE TO THE TERMS OF THIS AGREEMENT, RETURN THE UNOPENED PRODUCT TO
CABLETRON OR YOUR DEALER, IF ANY, WITHIN TEN (10) DA YS FOLLOWING THE DA TE
OF RECEIPT FOR A FULL REFUND.

IF YOU HAVE ANY QUESTIONS ABOUT THIS AGREEMENT, CONTACT CABLETRON
SYSTEMS [phone]. Attn: Legal Department.

1. LICENSE. You have the righ t to use only the one (1) copy of the Program provided in this
package subject to the terms and con d it ions of this License A greement.

You may not copy, reproduce or transmit any part of the Program except as permitted by the
Copyright Act of the Unite d States or as authorized in wr it ing by Cabletron.

2. OTHER RESTRICTIONS. You may not reve rse engi neer, decompile, or disasse m b l e th e
Program.

3. APPLICABLE LAW. This License Agreement shall be governed in accordance with English
law. The English court s shal l have exclusive jurisdic tion 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, in cl udi ng the U.S. Department of Comme r c e, 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 export ing party.

If the Program is exported from the United States pursuant to the License Exception CIV under
the U.S. Export Adminis tra ti on Regulations, You agree that You are a civil end user of the Pro gra m
and agree that You will use the Program for civil end us es onl y and not for military purposes.

vii

Notice

If the Program is exported from the United States pursuant to the License Exception TSR under

the U.S. Export Adminis tra ti on 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, Camb odi a, Cuba, Estonia, Georgia, Iraq, Kaz akhstan,

Kyrgyzstan, Laos, Latvia, Libya, Lithuania, Moldova, North Korea, the People’s Republic of China,
Romania, Russia, Rwanda, Tajikistan, Turkmenistan, Ukrain e, 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 dire ct product of the Program or the te chnology, if such foreign
produced direct produc t is subject to national securit y c ontrols as identified on the U.S. Co m me rce
Control List, or (iii) if the dire ct product of the technology is a com plete 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 direc t product is subject to national security controls as
identified on the U.S. Commerce Control List or is subje ct to State Department con trols under the
U.S. Munitions List.

5. UNITED STATES GOVERNMENT REST RICTE D RIGHTS. The enclosed Product (i)
was developed solely at private expense; (ii) conta ins “restricted computer software” submitted with
restricted rights in acc ordance with section 52.227-19 (a) through (d) of the Commercial Co m puter
Software-Restricted Rights Cl ause and its successors, and (iii) in all respe c ts is pro pri etary data
belonging to 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 disclosu re by the Government is subject to restr ic ti ons se t fort h herein.

6. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in
writing, Cabletron makes no warranty, expressed or implied, conc erning 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.

viii

Notice

SAFETY INFORMATION

CLASS 1 LASER TRANSCEIVERS

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

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

PORT INTERFACE MODULE USE CLASS 1 LASER TRANSCEIVERS.

READ THE FOLLOWING SAFETY INFORMATION BEFORE

INSTALLING OR OPERATING THESE MODULES.

The Class 1 laser transceiv ers use an opt ical feedback loop to maintain Class 1 operation limits . T his
control loop eliminates the need for maintenance checks or adjustments. The output is factory set, and
does not allow any user adjustmen t. Cla ss 1 Laser transceivers comply with th e fol lowing safety
standards:

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

• IEC Publication 825 (International Electrotechnical Commission).

• CENELEC EN 60825 (European Committee for El ec trotechnical Standar dization).
When operating within their performance limit a tions, laser transceiver ou tput meets the Class 1

accessible emission limit of al l thre e st andards. Class 1 levels of laser radiation are not considered
hazardous.

SAFETY INFORMATION

CLASS 1 LASER TRANSCEIVERS

LASER RADIATION AND CONNECTORS

When the connect or i s i n pla ce, all laser radiati on re mains within the fiber. The maximu m amount of
radiant power exiting the fib er (un der normal conditions) is -12.6 dBm or 55 x 10

Removing the optica l connector from the tr ansceiver allows laser radi at ion to emit directly from the
optical port. The maximum radiance from the opti cal port (under worst case condit ions) is

0.8 W cm

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

-2

or 8 x 103 W m2 sr-1.

-6

watts.

ix

Notice

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. Jim Sims

European Rep re sentative Address: Cabletron Systems Limited

Nexus House, New bury Business Park
London Road, Newbury
Berkshire RG14 2PZ, England

Conformance to Directive(s)/Product Standards: EC Directive 89/336 /E EC

EC Directive 73/23/EEC
EN 55022
EN 50524
EN 60950
EN 60825

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 ab ov e directives.

Manufacturer Legal Representative in Europe
Mr. Thomas R. Whissel Mr. Jim Sims

___________________________________ ___________________________________

Full Name Full Name
Compliance Engineering Manager President - E.M.E.A.

___________________________________ ___________________________________

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

___________________________________ ___________________________________

Location Location

x

CONTENTS

ABOUT THIS SUPPLEMENT

Getting Help........................................................... ..... .................................. .....xvi

Document Conventions..................................................................................... xvii

Related Documentation....................................................................................xviii

CHAPTER 1 INTRODUCTION

1.1 Product Overview.......................................................................................1-1

1.2 Using VLANs on the ELS10-27TX ...........................................................1-1

1.2.1 IEEE 802.1Q Standard.......................................................................1-2

1.3 802.1Q Mode on els10-27TX.....................................................................1-3

1.3.1 VLAN Hybrid Ports (802.1Q Mode).................................................1-3

1.3.2 VLAN Access Ports (802.1Q Mode).................................................1-3

1.3.3 802.1Q Trunk Ports...........................................................................1-4

1.3.3.1 Preserving Priority ................................................................1-4

1.3.3.2 Non-Preserving Priority ................................. ...... ................1-5

1.3.4 Accessing Network Management Using VLANs..............................1-5

1.3.5 Switch Mode......................................................................................1-6

1.3.6 Assigning Ports to a VLAN...............................................................1-6

1.3.7 Default Port VLAN ID......................................................................1-6

1.3.8 Restricting VLANs (802.1Q Mode)..................................................1-7

1.3.9 Enable GVRP.....................................................................................1-7

1.4 Workgroups................................................................................................1-8

1.5 Default Gateway.................................. ..... ...... .................................. ..... .....1-9

1.6 Installation and Management......... .................................. ..... ...... ................1-9

CHAPTER 2 ENHANCEMENTS TO LCM COMMANDS

2.1 Overview....................................................................................................2-1

2.2 LCM Conventions ......................................................................................2-1

2.3 LCM Command Summary .........................................................................2-2

2.3.1 Subset of LCM Commands ..................................................... ..... .....2-2

2.3.2 LCM Command Syntax........................................................... ..... .....2-3

2.4 Basic LCM Commands..............................................................................2-4

2.4.1 Help............................ ..... ...... .................................. ..... ...... ................2-4

2.4.2 Erase ..................................................................................................2-4

2.4.3 Exit or Logout....................................................................................2-4

2.5 LCM Commands ........................................................................................ 2-5

2.5.1 Enable Command (Address Limit)....................................................2-5

xi

Contents

2.5.2 Route Command................................................................. ...... ...... ...2-6

2.5.3 Port Command......................................................... ...... ..... ...............2-7

2.5.4 Switch Command...............................................................................2-9

2.5.5 Trap Control Command...................................................................2-10

2.5.6 VLAN Command..................................................... ........................2-11

CHAPTER 3 CONFIGURING VLANS USING SNMP

3.1 Overview.....................................................................................................3-1

3.2 The Config Table........................................................................................3-1

3.2.1 Modifying, Creating and Deleting VLANs.......................................3-2

3.2.1.1 Modifying a VLAN ..............................................................3-2

3.2.1.2 Creating a VLAN..................................................................3-3

3.2.1.3 Deleting a VLAN..................................................................3-3

3.3 The Config Egress List...............................................................................3-4

3.3.1 Modifying a Config Egress List Entry...............................................3-5

3.4 The Filter GVRP table................................................................................3-6

3.4.1 Modifying, Creating or Deleting a Filter GVRP Table Entry...........3-6

3.4.1.1 Creating a Filter....................................................................3-7

3.4.1.2 Deleting a Filter....................................................................3-7

3.5 The Static MAC Entry................................................................................3-8

3.5.1 Creating a Static MAC Entry.............................................................3-8

3.5.2 Deleting a Static MAC Entry.............................................................3-8

CHAPTER 4 VLAN MIB OBJECTS

4.1 Overview.....................................................................................................4-1

4.2 Bridge Configu ration....................................... .................................. ...... ...4-1

4.2.1 VLAN Version Number.....................................................................4-1

4.2.2 Operating Mode (VlanOperatingMode)............................................4-2

4.2.3 Reset (VlanReset) ......................................... .................................. ...4-2

4.2.4 GVRP Enable (VlanGVRPEnable) ...................................................4-3

4.2.5 Access List (VlanAccessList)............................................................4-4

4.2.6 VLAN (VlanConfigVlan)..................................................................4-4

4.3 Configuration Entries..................................................................................4-5

4.3.1 Entry (VlanConfigEntry).......................................................... ...... ...4-5

4.3.1.1 VlanConfigEntry ....................... ...... ..... ................................4-5

4.3.2 Index (VlanConfigIndex)......................................... ..........................4-6

4.3.3 VID (VlanConfigVID)........................................................ ...............4-6

4.3.4 Ports (VlanConfigPorts) ........................................................... .........4-7

4.3.5 IP (VlanConfigIP).............................. ................................. ...... ...... ...4-7

4.3.6 IP Mask (VlanConfigIPMask)...........................................................4-8

xii

Contents

4.3.7 Name (VlanConfigName)....................................... ..... ......................4-8

4.3.8 Status (VlanConfigStatus)............................................................ .....4-9

4.3.9 Establish (VlanConfigEstablish) ............................................. ..... .....4-9

4.4 Device Entries...........................................................................................4-10

4.4.1 Active (VlanNumActiveEntries)................................. ....................4-10

4.4.2 Static Configured (VlanNumConfiguredEntries)............................4-10

4.4.3 Maximum Number (VlanMaxNumEntries)....................................4-11

4.4.4 Configuration Table (VlanConfigTable).........................................4-11

4.5 Egress Table .............................................................................................4-12

4.5.1 Egress Table (VlanConfigEgressTable)..........................................4-12

4.5.2 Egress Entry (VlanConfigEgressEntry)...........................................4-12

4.5.2.1 VlanConfigEgressEntry......................................................4-13

4.5.3 Index (VlanEgressIndex)........................................ .........................4-13

4.5.4 VID (VlanEgressVID)............................................ ..... ...... ..............4-14

4.5.5 List (VlanEgressList)................................................... ....................4-14

4.5.6 Status (VlanEgressStatus)....................................... ..... ....................4-15

4.6 Filter GVRP..............................................................................................4-16

4.6.1 GVRP (VlanFilterGVRPTable).......................................................4-16

4.6.2 Entry (VlanFilterGVRPEntry)...................................................... ...4-16

4.6.2.1 VlanFilterGVRPEntry........................................................4-17

4.6.3 VlanFilterGVRPIndex....................................................... ...... ........4-17

4.6.4 VID (VlanFilterGVRPVID) .................................................... ..... ...4-18

4.6.5 List (VlanFilterGVRPList)...................................................... ..... ...4-18

4.6.6 Status (VlanFilterGVRPStatus).......................................................4-19

4.6.7 EstablishVID (VlanFilterGVRPEstablishVID)...............................4-19

4.7 Static MAC Address Entries.....................................................................4-20

4.7.1 Table (VlanStaticTable).............................. ...... ...............................4-20

4.7.2 Entry (VlanStaticEntry)...................................................................4-20

4.7.2.1 VlanStaticEntry ..................................................................4-21

4.7.3 VID (VlanStaticVID).......................................................................4-21

4.7.4 MAC (VlanStaticMAC)...................................................................4-22

4.7.5 Port (VlanStaticPort) ......................................................... ...... ..... ...4-22

4.7.6 Establish (VlanStaticEstablish) .......................................................4-23

xiii

Contents

CHAPTER 5 CONFIGURING WORKGROUPS USING LCM

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

5.2 Workgroup Configuration Examples..........................................................5-2

5.3 LCM Workgroup Commands.....................................................................5-4

CHAPTER 6 CONFIGURING WORKGROUPS USING

SNMP

6.1 Overview.....................................................................................................6-1

6.2 Workgroup Configuration Procedures........................................................6-2

CHAPTER 7 WORKGROUP MIB OBJECTS

7.1 Overview................................................................................. ....................7-1

7.2 Workgroups Using SNMP..........................................................................7-1

7.2.1 Next Number (WorkGroupNextNumber)..........................................7-1

7.2.2 Current Count (WorkGroupCurren tCou nt) .......................................7-2

7.2.3 MAX Count (WorkGroupMaxCount) ...............................................7-2

7.2.4 Table (WorkGroupTable)............................................................... ...7-3

7.2.5 Entry (WorkGroupEntry)......................................... ..........................7-4

7.2.5.1 Number (WorkGroupNumber) .............................................7-5

7.2.5.2 Name (WorkGroupName)....................................................7-5

7.2.5.3 Ports (WorkGroupPorts).......................................................7-6

7.2.5.4 Type (WorkGroupType).............................. ..........................7-6

APPENDIX A VIRTUAL LANS (VLANS)

INDEX

xiv

ABOUT THIS SUPPLEMENT

This document is a supplement to the existing SmartSTACK Ethernet
ELS10-27TX User Guide and should be used in conjunction with the
SmartSTACK Ethernet ELS10-27TX User Guide. The information in this

document describes the changes resulting from firmware revision 1.01.00.
This manual is for system admin istrators resp onsible for confi guring, moni toring,

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.

The contents of each chapter are described below.

• Chapter 1, Introduction, p rovides an overview of new VLAN an d W orkgroup

functionality as well as additional fun c tions for the SmartSTA CK Ethernet
ELS10-27TX.

• Chapter 2, Configuring VLANs Using LCM, provides instructions on how

to configure the SmartSTACK Ethernet ELS10-27TX VLAN functions using
LCM.

• Chapter 3, Configuring VLANs Using SNMP, provides instructions on how

to configure the SmartSTACK Ethernet ELS10-27TX VLAN functions using
SNMP.

• Chapter 4, VLAN MIB Objects, provides a list of VLAN Configur ation MIB

Objects.

• Chapter 5, Configuring Workgroups Using LCM, provides an overview of

workgroup configurations and LCM commands.

• Chapter 6, Configuring Workgroups Using SNMP , pr ovides an over view of

workgroup configurations and SNMP commands.

• Chapter 7, Workgroup MIB Objects, provides a list of Workgroup MIB

Objects used to configure Workgroups using SNMP.

• Appendix A, Virtual LANs, describes how the switch uses VLANs to create

isolated network domains, and provides illustrations of VLAN switch
configurations.

xv

About This Supplement

GETTING HELP

For additional support related to this device or document, contact Enterasys
Networks using one of the following methods:

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

Login
Password

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

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

Before calling Enterasys Networks, have the following information ready:

• Your Enterasys Networks service contract number

anonymous
your email address

• 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 Enterasys Networks
products in the network

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

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

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

• Any previous Return Material Authorization (RMA) numbers

xvi

About This Supplement

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>workgroup

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

<IP address>

ELS10-27>ipaddr 194.161.138.40

command:

Field value options appear in bold typeface:

ELS10-27>workgroup alpha add 5-9

The following conventions are also used in this document:

Note: Calls the reader’s attention to any item of information that may be of

special importance.

ipaddr

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.

xvii

About This Supplement

RELATED DOCUMENTATION

This document should be used in conjunction with the following document to
assist the user in using this product:

Document Title Part Number

SmartSTACK Ethernet ELS10-27TX User Guide 9032800

xviii

CHAPTER 1

INTRODUCTION

1.1 PRODUCT OVERVIEW

The SmartSTACK Ethernet ELS10-27TX provides a low cost, high performance
solution for 10/100 Mbps switched network s. The Sm artSTACK Ethernet
ELS10-27TX is configured with twent y-seven RJ45 port s supporting tw enty-four
autonegotiating 1 0 Mbps port s and th ree auto negotiati ng 10 /100 Mbps por ts. Th e
device also features two EPIM-100 slots that allow the user to install up to two
EPIM-100s to provide multimode fiber uplinks (with potential for single mode
fiber). It also includes an RS232C port for local console management.

In ELS10-27TX Version 1.0.1.00, the SmartSTACK Ethernet ELS10-27TX
supports two forms of Virtual LANs. One is the IEEE 802.1Q standard and the
other is a proprietary form that was developed prior to the IEEE standard being
available. The propriet ary form is known as Workgroups. V irtual Workgroups are
only supported in the 8 02.1D mode and VLANs are on ly supported i n the 802.1Q
mode. This manual documents both forms.

Also, modification of existing LCM commands were added that describe how to
set an address limit on a port and how to configure destination IP addresses for

traps. For information on “enable address limit” and “trap control” refer to
Chapter 2, Enhancements to LCM Commands.

This document does not attempt to describe the entire func tionality of the
SmartSTACK Ethernet ELS10-27TX product, but only differences between
Version 1.00.xx and Version 1.01.00 of the SmartSTACK Ethernet ELS10-27TX
product.

1.2 USING VLANS ON THE ELS10-27TX

This section describes Virtual Local Area Networks (VLANs) support for the
SmartSTACK Ethernet ELS10-27TX switch. This section describes support for
the IEEE 802.1Q standard.

1-1

Introduction

1.2.1 IEEE 802.1Q Standard

IEEE 802.1Q is a standard for virtual bridged local area networks (VLANs). It
provides an alternate method for forwarding packets through a switch. In an

802.1D (Spanning Tree) bridge, packets are forwarded in accordance with the

spanning tree as dynamically created by the 802.1D protocol (Bridge Protocol
Data Units [BPDUs]), and the spanning tree state of each port. In 802.1Q, in
addition to spanning tree, packets are forwarded in accordance with a VLAN tag
that is embedded in the packet, and the set of ports registered for that VLAN. A
set of rules is used for ingress (receipt), forwarding, and egress (transmit).

The SmartSTACK Ethernet ELS10-27TX provides support for port based
VLANs.

The ingress rules deal with the reception of tagged and untagged packets and the
decision to either drop them, or forward them to the forwarding process.

The forwarding rules deal with forwarding packets using topology restrictions,
the filtering database, queue frames (not supported), map priorities (not
supported), and recalculation of the FCS. The forward/filtering database can
contain three types of entries:

• Permanent entries

• Static entries

• Dynamic entries

Dynamic entries are created using the protocols supported by the switch (GVRP).
There will be no learning of VLANs outside of this proto col.

NOTE

There is no support for GVRP with ELS10-27TX Version 1.01.00.

GVRP will be supported in a subsequent release.

The egress rules deal with whether the destination port(s) are members of the
VLAN, and whether the VLAN tag is to be stripped. There is also an issue of
address translation on a packet that is having the VLAN tag stripped. This only
applies to multi-protocol environments, such as a combination of Ethernet,
FDDI, and Token Ring protocols and does not apply to the SmartSTACK
Ethernet ELS10-27TX.

The 802.1Q standard does not replace 802.1D. It limits the relaying of packets on
the spanning tree to a subset: the subset being the members of a particular
VLAN. This is determined by comparing the VLAN ID, which is a field within
the tag, to the ports which are members of that VLAN.

1-2

Introduction

Tag-aware devices should not exist on a segment

The 802.1Q VLANs spans multiple systems and could span the entire network.
Unlike Workgroups, VLANs are not limited within a particular unit. The
maximum number of VLANs supported in 802.1Q mode on ELS10-27TX is 32.

1.3 802.1Q MODE ON ELS10-27TX

The SmartSTACK Ethernet ELS10-27TX operates in two modes: 802.1D and

802.1Q. While operating in 802.1Q mode, ports can be configured to allow non-

802.1Q devices to operate in this environment.

1.3.1 VLAN Hybrid Ports (802.1Q Mode)

A VLAN Hybrid port is used to connect one or more VLAN-aware or VLAN­unaware devices to the switch. Both tagged and untagged frames can be received
and transmitted on Hybrid ports.

If a port on the ELS10-27TX is not configured as an Access port, it is a Hybrid
port.

1.3.2 VLAN Access Ports (802.1Q Mode)

The VLAN feature must be used only when non-802.1Q devices are attached to
this port. These ports are known as access ports.

An access command is a sub-command of the port command. An access port is
used to allow each segment to have multiple tag-unaware devices on it, and to
have those devices communicating on multiple VLANs.

An access port has three major characteristics:

1. When a packet is received, it will always insert a tag into the packet.

NOTE

2. When a port transmits a packet, it always strips off the tag, even if it does
not match the default VLAN ID for that port.

3. Additional entries must be placed into the database to support it. When
addresses are learned on access ports, additional MAC add resses/VLAN ID
pairs are placed into the database to avoid flooding and to establish
connectivity.

For further information on Access Ports, refer to Appendix A, Virtual LANs
(VLANs).

connected to an access port.

1-3

Introduction

1.3.3 802.1Q Trunk Ports

An 802.1Q trunk port passes all packets with the tag in place. It will not strip the
tag. The port must be a hybrid port. There is no explicit command to create

802.1Q trunks ports. The following are two ways of implementing trunk ports:

• Preserving Priority. The default port VLAN ID (PVID) must be identical at
both ends of the trunk link. The PVID used mus t be a value not used anywh ere
else in the network to pass traffic. Because this VLAN ID is unique, it will not
be stripped from the packet on egress and therefore will pass the priority bits
intact.

• Non-Preserving Priority . The default port VLAN ID (PVID) must be identical
at both ends of the trunk link. The VLAN ID will be strip ped on egress and re­inserted on ingress. However, the priority bits will be lost.

NOTE

All VLAN ports by default are hybrid ports.

1.3.3.1 Preserving Priority

The 802.1Q trunk passes all packets with the tag in place. It will not strip the tag.
All packets traversing the link will contain a tag. The admin istrator should set a
policy that certain VLAN IDs must be reserved and must not be used for traffic.

For example, when reserving VLAN IDs 0xff 0 through 0x ffe, on e of these can be
used as the PVID for both ends of trunk links. By doing this, the priority bits can
be passed intact. Both ends of the link should be defined as Hybrid so that they
only strip tags if they match the PVID. Because the tag in the packet traversing
the trunk will never match the PVID, it will not be stripped. Also, because the
packet is always received with a tag, the PVID is never inserted.

Preserving priority works best when the end device inserts the tag and supports
priority (priority is not used by the ELS10-27TX, but is passed within the
packet). Therefore, the trunk will not strip a tag or insert a tag, thus the priority
fields are passed intact.

1-4

Introduction

1.3.3.2 Non-Preserving Priority

Use this method if there is no concern about passing priori ty from one device to
another . Con figur e the same PV ID at both en ds of the trun k link to ensu re that al l
traffic will be forwarded correctly.

In order to implement this, the ports at both ends of the link must work the same,
that is:

• Strips tags on egress of the ports that match the PVID

• Inserts a tag using the PVID when there is no tag

• Changes the tag on egress with an ID of zero to the PVID

The tag will be stripped on egress of that port, when it matches the PVID. When
the packet is received by the peer, a tag with the same VLAN ID will be inserted
and the packet will be forwarded as though the packet traversed the trunk link
with the tag in place. However, the priority bits will not be reserved.

1.3.4 Accessing Network Management Using VLANs

When an IP address is configured on the unit, it must be associated with the
VLAN. If multiple VLANs are configured on a switch, you can configure
multiple IP addresses provided they are on separate subnets. Therefore, when an
IP address is assigned to a switch, the VLAN ID for the subnet must be specified.
When the network management processor issues a response to a network
management packet, it selects the correct VLAN ID to use based on the IP
subnet.

For further infor mation, r efer to IP Address Command or the VLAN Comman d in
Chapter 2, Enhancements to LCM Commands.

1-5

Introduction

1.3.5 Switch Mode

The unit operates in either an 802.1D or 802.1Q mode. The mode must be
selected by the user and applies to all ports. The unit will not operate in a mixed
mode. The default is to operate in 802.1D mode.

For further information, refer to Switch Command in Chapter 2, Enhanceme nts to

LCM Commands.

1.3.6 Assigning Ports to a VLAN

A port becomes a member of a VLAN, by using the VLAN command.
For further information, refer to the Port Command in Chapt er 2, En hancements

to LCM Commands.

1.3.7 Default P ort VLAN ID

If the unit is operating in 802.1Q mode, then each port will be configured with a
default port VLAN ID (PVID). The default value for each port will be the def ault
VLAN ID of 0x001. You are allowed to modify this on a per port basis.

When 802.1Q was developed, it was decide d to configure a default VLAN ID for
a port. If a packet is received on a port that does not have a VLAN ID or does not
have a VLAN ID of zero, the default VLAN ID will be inserted. Once this tag is
in place the packet is sent to the forwarding engine. Once the forwarding engine
receives it, it will use this tag to determine which VLAN to restrict this packet to.

The sub-command of the port command known as the VLAN sub-command is
used to set the default VLAN ID for the port.

NOTE

For further information, refer to Port Command in Chapter 2, Enhancements to
LCM Commands.

There is a sub-command of the port command known as the
VLAN sub-command. This is not used to make a port a member
of the VLAN, and is not directly used in the forwarding and

filtering decision.

1-6

Introduction

1.3.8 Restricting VLANs (8 02.1Q Mode)

This command will allow you to specify a list of VLAN IDs that should not be
dynamically learned by GVRP. When the management processor receives a
GVRP packet, it checks this database to determine if the learning of this ID
should be restric t ed.

NOTE

There is no support for GVRP with ELS10-27TX Version 1.01.00.
GVRP will be supported in a subsequent release.

For usage, refer to the VLAN Command in Chapter 2, Enhancements to LCM
Commands.

1.3.9 Enable GVRP

GVRP can be enabled on a per port basis using the Port command.

NOTE

For further information, refer to the Port Command in Chapt er 2, Enhancements
to LCM Commands.

There is no support for GVRP with ELS10-27TX Version 1.01.00.
GVRP will be supported in a subsequent release.

1-7

Introduction

1.4 WORKGROUPS

This section describes Workgroup support for the SmartSTACK Ethernet
ELS10-27TX switch. The switch supports up to eight user defined Workgroups,
with limited support for overlapping Workgroups.

The purpose of Workgroups is to isolate broadcast and multicast traffic to within
the W orkgroup. In some cases, unicast traffic will also be isolated. Due to the fact
that a typical unicast address is obtained by first issuing an ARP packet (which is
a broadcast, and the broadcast packet will not be forwarded outside of the
Workgroup), the unicast address will not be learned outside of the Workgroup.
The end result is that host or servers will not be able to communicate with oth er
hosts or servers outside of their Workgroup.

Unlike IEEE standard VLANs which span switches, Workgroups only deal with
filtering and forwarding of frames within the single switch. When packets are
received on a port, the packet will be identified with a single Workgroup. The
packet will then be forwarded or filtered based on that single Workgroup
marking. When a packet leaves the switch, the packet will appear just as it did
when it was received on the inbound port.

The SmartSTACK Ethernet ELS10-27TX allows you to define ports for logical
groups of associated devices (virtual workgroups) to provide a more efficient
flow of traffic across yo ur Ethernet net work. You can define a maximum of eight
virtual workgroups. The number of ports within a Workgroup is not restricted
and an individual port can be a member of multiple Virtual Workgroups.

NOTE

Virtual Workgroups will only operate in 802.1D mode.

Virtual workgroups offer the ability to limit broadcasts to logical domains within
the network. Workgroup destinations are recognized by the SmartSTACK
Ethernet ELS10-27TX and broadcast and unicast packets are routed directly to
hosts within the workgroup, eliminating the need to perform a general broadcast
across each segment of the network to find specific host addresses.

For further information, refer to the Workgroup Command in Chapter 5,

Configuring Workgroups Using LCM.

1-8

Introduction

1.5 DEFAULT GATEWAY

A default gateway field was added to the router command to allow
communication to a device on a subnet not configured on this switch.

For information on configuring the Default Gateway, refer to Chapter 2,

Enhancements to LCM Commands.

1.6 INSTALLATION AND MANAGEMENT

For instructions on how to unpack, install, manage, troubleshoot and cable the
SmartSTACK Ethernet ELS10-27TX and for a complete list of commands, refer
to the SmartSTACK Ethernet ELS10-27TX User Guide.

1-9