Nortel Networks 450 User Manual

Software Release V1.3.0 Part No. 302401-D Rev 00

July 1999 4401 Great America Parkway

Santa Clara, CA 95054

Using the BayStack 450 10/100/1000 Series Switch

and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full respo nsib ility fo r th e ir app lica tio ns o f a ny products specified in this d ocume nt . The information in this document is proprietary to Nortel Networks NA Inc.

Trademarks

NORTEL NETWORKS is a trademark of Nortel Networks Corporation. Bay Networks and Optivity are registered trademarks an d Accelar, BayStack, EZ LAN, Optivity Campus, Optivity

Enterprise, StackProbe, and the Bay Networks logo are trademarks of Nortel Networks NA Inc. Microsoft, MS, MS-DOS, Win32, Windows, and Windows NT are registered trademarks of Microsoft Corporation.

All other trademarks and registered trademarks are t he property of their respective owners.

Statement of Conditions

In the interest of improvi ng internal design, operational function, and/o r re lia bi lity, Nortel Network s 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 her ein.

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 reaso nable protection against harmful interferenc e when the equipment is operated in a commercial environment. This equipment ge nerates, uses, and 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 required 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 th e Norte l Netw orks Ba yStack 450 switch is shielded ag ainst the gene ration of ra dio inte rferenc e 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 env iron m ent, this product may cause radio interference, in which case, the user may be required to take appropriate measures.

Achtung: Dieses ist ein Gerät der Funkst örgrenzwertklasse 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 environnement domestique, ce produit risque de créer des interférences radioélectriques, il appartiendra alors à l’utilisateur de prendre les mesures spécifiques appropriées.

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EC Declaration of Conformity

This product conforms (or these products conform) 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

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.

Taiwan Requirements

Bureau of Standards, Metrology and Inspection (BSMI) Statement

Canada Requirements Only

Canadian Department of Communications Radio Interference Regulations

This digital apparatus (Ba yStack 4 50 swi tch) doe s not e xc eed the C lass A l imits f or radio -noise emissions from di gital 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 (BayStack 450 switch) respecte les limites de bruits radioélectriques visant les appareils numériques de classe A prescrites dans le Règlement sur le brouillage rad ioélectrique du ministère des Communications du Canada.

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iii

Nortel Networks NA Inc. Software License Agreement

NOTICE: Please carefully read this license agre ement before copying or using the accompanying software or installing the hardware unit with pre-enabled software (each of which is referred to as “Software” in this Agreement). BY COPYING OR USING THE SOFTWARE, YOU ACCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT. THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH NORTEL NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE. If you do not accept these terms and conditions, return the product, unused and in the original shipping container, within 30 days of purchase to obtain a credit for the full purchase price.

1. License Grant. Nortel Networks NA Inc. (“Nortel Networks”) grants the end user of the Software (“Licensee”) a personal, nonex clusive, nontransferable license : a) to us e the So ftw are eit her on a single c omputer o r, if applicable, on a single authorized device identified by host ID, for which it was originally acquired; b) to copy the Software solely for backup purposes in support of authorized use of the Software; and c) to use and copy the associated user manual solely in support of authoriz ed use of th e Softwa re b y Licen see. Thi s license applies t o the So ftware o nly and d oes not extend to Nortel Networks Agent software or other Nortel Networks software products. Nortel Networks Agent software or other Nortel Networks software products are licensed for use under the terms of the applicable Nortel Networks NA Inc. Software License Agreement that accompanies such software and upon payment by the end user of the applicable license fees for such software.

2. Restrictions on use; reservation of rights. The Software and user manuals are protected under copyright laws. Nortel Networks and/or its licensors retain all title and ownership in both the Software and user manuals, including any revisions made by Nortel Networks or it s licensors. The copyri ght notice must be rep roduced and includ ed with any copy of any portion of the Software or user manuals. Licensee may not modify, translate, decompile, disassemble, use for any competitive analysis, reverse engineer, distribute, or create derivative works from the Software or user manuals or any copy , in whole or in part. Except as expressly provided in this Agreement, Licensee may not copy or transfer the Software or user manuals, in whole or in part. The Software and user manuals embody Nortel Networks’ and its licensors’ confidential and proprietary intellectu al pro p erty. Licensee shall not sublicense, assign, or ot herwise disclose to any third party the Software, or any information about the operation, design, performance, or implementation of the Software and user manuals that is confidential to Nortel Networks and its licensors; however, Licensee may grant permission to its consultants, subcontractors, a nd agents to use the Softw are at Licensee’s facility, provided they have agreed to use the Software only in accordance with the terms of this license.

3. Limited warranty . Nortel Networks warrants each item of Software, as delivered by Nortel Networks and properly installed and operated on Nortel Networks hardware or other equipment it is originally licensed for, to function substantially as described in its accompanying user m anual during its warranty period , which begins on the date Software is first shipped to Licensee. If an y item of S oftware f ails to so function d uring its w arranty period, as the sole remedy Nortel Networks will at its discretion provide a suitable fix, patch, or workaround for the problem that may be included in a future Software release. Nortel Networks further warrants to Licensee that the media on which the Software is provided will be free from defec ts in materials and wo rkman ship under no rmal use for a peri od of 90 da ys from the date Software is first shipped to Licensee. Nortel Networks will replace defective media at no charge if it is returned to Nortel Netw orks during the warranty period along with proof of the date of sh ipment. This warrant y does not apply if the media has been damaged as a result of accident, misuse, or abuse. The Licensee assumes all responsibility for selection of the Software to achieve Licensee’s intended results and for the installation, use, and results obtained from the Software. Nortel Networks does not warrant a) that the functions contained in the software will meet the Licensee’s requirements, b) that the Software will operate in the hardware or software combinations that the Licensee may select, c) that the operation of the Software will be uninterrupted or error free, or d) that all defects in the operation of the Softw are will be corrected . Nortel Network s is not obligated to remedy any Software de fect that cannot be reproduced with the latest Software release. These warranties do not apply to the Software if it has been (i) altered, except by Nortel Networks or in accordance with i ts instructions; (ii) used in conj unction with another vendor’s product, resulting in the de fect; or (iii) damaged by improper environment, abuse, misuse , accident, or negligence. THE FOREGOING WARRANTIES AND LIMITATIONS ARE EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

302401-D Rev 00

Licensee is responsible for the security of its o wn d ata and in formatio n and fo r maintain ing ade quate pro cedures a part from the Software to reconstruct lost 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 NORTEL NETWORKS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL THE LIABILITY OF NORTEL NETWORKS RELATING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE PRICE PAID TO NORTEL NETWORKS FOR THE SOFTWARE LICENSE.

5. Government Licensees. This provision applies to a ll Softwa re and docum entation acquired d irectly or i ndirectly by or on behalf of the United States Government. The Software and documentation are commercial products, licensed on the open market at market prices, and were developed entirely at private expense and without th e use of any U.S. Government funds. The license to the U.S. Government is granted only with restricted rights, and use, duplication, or disclosure by the U.S. Government is subject to the restrictions set forth in subparagraph (c)(1) of the Commercial Computer Software––Restricte d Rig hts cla u se o f FAR 52.227-19 and the limitations set out in this license for civilian agencies, and subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause of DFARS

252.227-7013, for agencies of t he Department of Defense or their successors, whichever is applicable.

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 an d may procure support and assista nce from Nortel Networks.

7. Term and termination. This license is effective until terminated; howeve r, 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. Licensee may terminate this license at any time. The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license. Upon termination for any reason, Licensee will immediat ely destroy or return to Nortel Networks the Software, user manuals, and all copies. Nortel Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license.

8. Export and Re-export. 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 foregoing, Licensee, on behalf of itself and its subsidiaries and affiliates, agrees that it will not, without first obtaining all export licenses and approvals required by the U.S. Government: (i) export, re-export, transfer, or divert any such Software or technical data, or any direct product thereof, to any country to which such exports or re-exports are restricte d or em b argoed under United State s e x port control laws and re gulations, or to any nation al or re sident of such restricted or embargoed countries; or (ii) provide the Software or related technical data or information to any military end user or for any military end use, including the design, development, or production of any chemical, nuclear, or biological weapons.

9. General. If any provision of this Agreement is held to be invalid or unenf orceable by a court of competent jurisdiction, the remainder of the provisions of this Agreement shall remain in full force and effect. This Agreement will be governed by the laws of the state of California.

Should you have any questions concerning this Agreement, contact Nortel Netw orks, 4401 Great America Parkway, P.O. Box 58185, Santa Clara, California 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 BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER OF THIS AGREEMENT. NO DIFFERENT 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.

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Preface

Audience ......................................... ................................ ................................ .................xxi

Organization ...................................................................................................................xxii

Text Conventions ...........................................................................................................xxiii

Acronyms ........................... .......................... .......................... ......................... ...............xxiii

Related Publications ......................................................................................................xxiv

How to Get Help .............................................................................................................xxv

Chapter 1 BayStack 450 10/100/1000 Series Switches

Physical Description .......................................................................................................1-1

Front Panel ...............................................................................................................1-2

Comm Port ........................................................................................................1-3

Uplink/Expansion Slot ........................................................................................1-3

Port Connectors .................................................................................................1-3

LED Display Panel .............................................................................................1-5

Back Panel ...............................................................................................................1-8

AC Power Receptacle ........................................................................................1-9

RPSU Connector .............................................................................................1-10

Cascade Module Slot ........................... ....... ...... ....... ...... .................................1-11

Cooling Fans ....................................................................................................1-11

Features ........................................................................................................................1-11

IEEE 802.1p Prioritizing .........................................................................................1-14

IEEE 802.1Q VLANs ..............................................................................................1-14

IGMP Snooping Feature ........................................................................................1-15

Flash Memory Storage .......................... ...... ....... ...... ....................................... ...... .1-15

Storage of Switch Software Image ..................................................................1-15

Storage of Configuration Parameters ..............................................................1-15

MultiLink Trunking ....... ...... ....... ...... ....... ...... ....... ...... ....... ...... ...... ...........................1-16

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Port Mirroring .........................................................................................................1-16

Autosensing and Autonegotiation ...........................................................................1-16

BootP Automatic IP Configuration/MAC Address ...................................................1-17

SNMP MIB Suppor t ..... ...... ....... ...... ....... ...... ....... ...................................... ....... ...... .1-18

Configuration and Switch Management .................................................................1-18

Network Configuration ..................................................................................................1-18

Desktop Switch Application ....................................................................................1-19

Segment Switch Application ...................................................................................1-20

High-Density Switched Workgroup Applica tio n ........................... ....... ...... ....... ....... 1 -2 1

Fail-Safe Stack Application .....................................................................................1-22

Stack Operation ............................................................................................................1-23

BayStack 400-ST1 Cascade Module .....................................................................1-23

Cascade A Out Connector ...............................................................................1-24

Unit Select Switch ............................................................................................1-24

Cascade A In Connector .................................................................................1-24

Base Unit ................................................................................................................1-25

Initial Installation ..............................................................................................1-25

Stack MAC Address .........................................................................................1-26

Temporary Base Unit .......................................................................................1-26

Removing a Unit from the Stack ......................................................................1-27

Stack Configurations ..............................................................................................1-27

Stack Up Configurations ..................................................................................1-28

Stack Down Configurations .............................................................................1-28

Redundant Cascade Stacking Feature ..................................................................1-30

IEEE 802.1Q VLAN Workgroups ..................................................................................1-32

IEEE 802.1Q Tagging .............................................................................................1-33

VLANs Spanning Multiple Switches .......................................................................1-37

VLANS Spanning Multiple 802.1Q Tagged Switches ......................................1-37

VLANS Spanning Multiple Untagged Switches ...............................................1-38

Shared Servers ......................................................................................................1-40

VLAN Workgroup Summary ...................................................................................1-45

VLAN Configuration Rules .....................................................................................1-47

IGMP Snooping ............................................................................................................1-48

IGMP Snooping Configuration Rules .....................................................................1-52

IEEE 802.1p Prioritizing ...............................................................................................1-53

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MultiLink Trunks ................. ...... ....................................... ....... ...... ...... ....... ...... ....... ...... .1 -57

Client/Server Configuration Using MultiLink Trunks ...............................................1-58

Trunk Configuration Screen Examples ...................................................................1-60

Trunk Configuration Screen for Switch S1 .......................................................1-60

Trunk Configuration Screen for Switch S2 .......................................................1-63

Trunk Configuration Screen for Switch S3 .......................................................1-65

Trunk Configuration Screen for Switch S4 .......................................................1-67

Before Configuring Trunks ......................................................................................1-69

MultiLink Trunking Configuration Rules . ...................................... ....... ...... ....... ...... .1-69

How the MultiLink Trunk Reacts to Losing Distributed Trunk Members .................1-71

Spanning Tree Considerations for MultiLink Trunks ...............................................1-72

Additional Tips About the MultiLink Trunking Feature ............................................1-75

Port Mirroring (Conversation Steering) .........................................................................1-76

Port-Based Mirroring Configuration ....... ...... ....... ...................................... ....... ...... .1-77

Address-Based Mirroring Configuration .................................................................1-79

Port Mirroring Configuration Rules .........................................................................1-82

Chapter 2 Installing the BayStack 450 Switch

Installation Requirements ...............................................................................................2-1

Installation Procedure .....................................................................................................2-3

Installing the BayStack 450 Switch on a Flat Surface ..............................................2-3

Installing the BayStack 450 Switch in a Rack ..........................................................2-4

Attaching Devices to the BayStack 450 Switch ........................................................2-7

Connecting the 10BASE-T/100BASE-TX Ports .................................................2-8

Connecting Fiber Optic Ports ............................................................................2-9

Console/Comm Port ........................................................................................2-10

Connecting a Terminal to the Console/Comm Port ..........................................2-11

Connecting Power .........................................................................................................2-12

Verifying the Installation ................................................................................................2-14

Verifying the Installation Using the LEDs ...............................................................2-14

Verifying the Installation Using the Self-Test Screen ..............................................2-15

Initial Setup ...................................................................................................................2-17

Standalone Switch Setup .......................................................................................2-17

Stack Setup ............................................................................................................2-20

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Chapter 3 Using the Console Interface

Accessing the CI Menus and Screens ............................................................................3-1

Using the CI Menus and Screens ...................................................................................3-2

Navigating the CI Menus and Screens .....................................................................3-2

Screen Fields and Descriptions ...............................................................................3-3

Main Menu ......................................................................................................................3-4

IP Configuration/Setup ................................ ...... ....... ...... ....................................... ...... ...3-8

Choosing a BootP Request Mode ................................................................................3-10

BootP When Needed .............................................................................................3-10

BootP Always .........................................................................................................3-11

BootP Disabled ......................................................................................................3-11

BootP or Last Address ...........................................................................................3-12

SNMP Configuration .......... ...... ....... ...... ....... ...... ....... ...... ....... ...... ...... ...........................3-13

System Characteristics ...... ...... ....... ...... ....... ...................................... ....... ...... ....... ...... .3-1 5

Switch Configuration .....................................................................................................3-18

MAC Address Table ................................................................................................3-20

VLAN Configuration Menu .....................................................................................3-22

VLAN Configuration .........................................................................................3-24

VLAN Port Configuration .................................................................................3-26

VLAN Display by Port ......................................................................................3-29

Traffic Class Configuration ...............................................................................3-30

Port Configuration ..................................................................................................3-32

High Speed Flow Control Configuration .................................................................3-34

Choosing a High Speed Flow Control Mode ..........................................................3-36

Symmetric Mode ..............................................................................................3-36

Asymmetric ........... ............................................. ............................................. .3-37

MultiLink Trunk Configuration ......... ....... ...... ....... ...... ....... ...................................... .3-37

MultiLink Trunk Configuration Screen ..............................................................3-39

MultiLink Trunk Utilization Scre en ................ ...................................... ....... ....... 3 -41

Port Mirroring Configuration ...................................................................................3-45

Rate Limiting Configuration ....................................................................................3-48

IGMP Configuration ................................................................................................3-51

Port Statistics .........................................................................................................3-54

Console/Comm Port Configuration ...............................................................................3-58

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Renumber Stack Units ..................................................................................................3-65

Hardware Unit Information ............................................................................................3-67

Spanning Tree Configuration ........................................................................................3-67

Spanning Tree Port Configuration ..........................................................................3-69

Display Spanning Tree Switch Settings ..................................................................3-72

TELNET Configuration .................................................................................................3-75

Software Download .......................................................................................................3-78

Configuration File .........................................................................................................3-82

Display Event Log .........................................................................................................3-85

Excessive Bad Entries ...........................................................................................3-86

Write Threshold ......................................................................................................3-86

Flash Update .. ...... ....... ...... ....... ...... ....... ...... ....... ...... ....................................... ...... .3-87

Reset ............................................................................................................................3-88

Reset to Default Settings ..............................................................................................3-90

Logout ................................ ................... .................... ................... ................... ..............3 -93

Chapter 4 Troubleshooting

Interpreting the LEDs .....................................................................................................4-2

Diagnosing and Correcting the Problem ......................... ....... ...... ...... .............................4-5

Normal Power-Up Sequence ....................................................................................4-6

Port Connection Problems .......................................................................................4-7

Autonegotiation Modes ......................................................................................4-8

Port Interface .....................................................................................................4-9

Appendix A Technical Specifications

Environmental .......................... ................................. ................................ ..................... A-1

Electrical ............... ................................................................. ........................................ A- 1

Physical Dimensions ...................................................................................................... A-2

Performance Specifications ........................................................................................... A-2

Network Protocol and Standards Compatibility ............................................................. A-2

Data Rate ......................................................................................................................A-2

Interface Options ........................................................................................................... A-3

Safety Agency Certification ........................................................................................... A-3

Electromagnetic Emissions ........................................................................................... A-3

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Electromagnetic Immunity ............................................................................................. A-3

Declaration of Conformity .............................................................................................. A-4

Appendix B Gigabit Fiber Optical Characteristics

1000BASE-SX Models .................................................................................................. B-1

Operating Range ..................................................................................................... B-1

Transmit Characteristics .......................................................................................... B-2

Receive Characteristics .......................................................................................... B-3

Worst-Case Power Budget and Penalties ................................... ....... ...... ....... ...... .. B-3

1000BASE-LX Models ................................................................................................... B-4

Operating Range ..................................................................................................... B-4

Transmit Characteristics .......................................................................................... B-5

Receive Characteristics .......................................................................................... B-5

Worst-Case Power Budget and Penalties ................................... ....... ...... ....... ...... .. B-6

Appendix C Media Dependent Adapters

10BASE-T/100BASE-TX MDA ......................................................................................C-2

100BASE-FX MDAs .......................................................................................................C-3

1000BASE-SX MDAs ....................................................................................................C-6

M1000BASE-LX MDAs .................................................................................................. C-9

Installing an MDA ......................................... ...... ....... ...... ....... ...... ...... ....... ...... .............C -1 1

Replacing an MDA with a Different Model ................................................................... C-13

1000BASE-LX Multimode Applications .......................................................................C-13

Appendix D Quick Steps to Features

Configuring 802.1Q VLANs ...........................................................................................D-2

Configuring MultiLink Trunks .........................................................................................D-4

Configuring Port Mirroring .............................................................................................D-5

Configuring IGMP Snooping .......................................................................................... D-7

Appendix E Connectors and Pin Assignments

RJ-45 (10BASE-T/100BASE-TX) Port Connectors ........ ....... ...... ...... ....... ...... ....... ........ E-1

MDI and MDI-X Devices ................................................................................................ E-2

MDI-X to MDI Cable Connections ........................................................................... E-3

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MDI-X to MDI-X Cable Connections ..... ...... ....... ...... ....... ...................................... .. E-4

DB-9 (RS-232-D) Console/Comm Port Connector ... ...... ....... ...... .................................. E-5

Appendix F Default Settings

Appendix G Sample BootP Configuration File

Index

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Figures

Figure 1-1. BayStack 450 Switch Versions .................................................................1-1

Figure 1-2. BayStack 450 Switch Front Panels ..........................................................1-2

Figure 1-3. BayStack 450-24T/12T LED Display Panel ..............................................1-5

Figure 1-4. BayStack 450-12F LED Display Panel .....................................................1-6

Figure 1-5. BayStack 450 Switch Back Panel ............................................................1-9

Figure 1-6. BayStack 450 Switch Used as a Desktop Switch ..................................1-19

Figure 1-7. BayStack 450 Switch Used as a Segment Switch .................................1-20

Figure 1-8. Configuring Power Workgroups and a Shared Media Hub ....................1-21

Figure 1-9. Fail-Safe Stack Example ........................................................................1-22

Figure 1-10. BayStack 400-ST1 Front-Panel Components .................... ...... ....... ...... .1-23

Figure 1-11. Connecting Cascade Cables .................................................................1-24

Figure 1-12. Stack Up Configuration Example ...........................................................1-28

Figure 1-13. Stack Down Configuration Example .......................................................1-29

Figure 1-14. Redundant Cascade Stacking Feature ..................................................1-31

Figure 1-15. Port-Based VLAN Example ......... ....... ...... ....... ...... ...... ....... ...... ....... ...... .1 -32

Figure 1-16. Default VLAN Settings ...........................................................................1-34

Figure 1-17. 802.1Q Tagging (1 of 4) .........................................................................1-35

Figure 1-18. 802.1Q Tagging (2 of 4) .........................................................................1-35

Figure 1-19. 802.1Q Tagging (3 of 4) .........................................................................1-36

Figure 1-20. 802.1Q Tagging (4 of 4) .........................................................................1-36

Figure 1-21. VLANs Spanning Multiple 802.1Q Tagged Switches .............................1-37

Figure 1-22. VLANs Spanning Multiple Untagged Switches ......................................1-38

Figure 1-23. Possible Problems with VLANs and Spanning Tree Protocol .................1-39

Figure 1-24. Multiple VLANs Sharing Resources .......................................................1-40

Figure 1-25. VLAN Broadcast Domains Within the Switch .........................................1-41

Figure 1-26. Default VLAN Configuration Screen Example ........................................1-42

Figure 1-27. VLAN Configuration Screen Example ....................................................1-43

Figure 1-28. Default VLAN Port Configuration Screen Example ................................1-44

Figure 1-29. VLAN Port Configuration Screen Example ............................................1-45

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Figure 1-30. VLAN Configuration Spanning Multiple Switches ..................................1-46

Figure 1-31. IP Multicast Propagation With IGMP Routing ........................................1-49

Figure 1-32. BayStack 450 Switch Filtering IP Multicast Streams (1 of 2) .................1-50

Figure 1-33. BayStack 450 Switch Filtering IP Multicast Streams (2 of 2) .................1-51

Figure 1-34. Prioritizing Packets ................................................ ...... ....... ...... ..............1-53

Figure 1-35. Port Transmit Queue ..............................................................................1-54

Figure 1-36. Default Traffic Class Configuration Screen Example .............................1-55

Figure 1-37. Setting Port Priority Example .................................................................1-56

Figure 1-38. Switch-to-Switch Trunk Configuration Example .....................................1-57

Figure 1-39. Switch-to-Server Trunk Configuration Example .....................................1-58

Figure 1-40. Client/Server Configuration Example .....................................................1-59

Figure 1-41. Choosing the MultiLink Trunk Configuration Screen ..............................1-60

Figure 1-42. MultiLink Trunk Configuration Screen for Switch S1 ..............................1-61

Figure 1-43. MultiLink Trunk Configuration Screen for Switch S2 ..............................1-63

Figure 1-44. MultiLink Trunk Configuration Screen for Switch S3 ..............................1-65

Figure 1-45. MultiLink Trunk Configuration Screen for Switch S4 ..............................1-67

Figure 1-46. Loss of Distributed Trunk Members .......................................................1-71

Figure 1-47. Path Cost Arbitration Example ...............................................................1-72

Figure 1-48. Example 1: Correctly Configured Trunk .................................................1-73

Figure 1-49. Example 2: Detecting a Misconfigured Port ................ ....... ...... ....... ...... .1 -74

Figure 1-50. Port-Based Mirroring Configuration Exampl e ........................................1-77

Figure 1-51. Port Mirroring Port-Based Screen Example ...........................................1-79

Figure 1-52. Address-Based Mirroring Configuration Example ..................................1-80

Figure 1-53. Port Mirroring Address-Based Screen Example ....................................1-81

Figure 2-1. Package Contents ....................................................................................2-2

Figure 2-2. Positioning the Chassis in the Rack .........................................................2-5

Figure 2-3. Attaching Mounting Brackets ...................................................................2-6

Figure 2-4. Installing the BayStack 450 Switch in an Equipment Rack ......................2-6

Figure 2-5. 10/100 Mb/s Port Connections .................................................................2-8

Figure 2-6. Fiber Optic Port Connections ...................................................................2-9

Figure 2-7. Connecting to the Console/Comm Port .................................................2-11

Figure 2-8. BayStack 450 Switch AC Power Receptacle ..........................................2-13

Figure 2-9. Grounded AC Power Outlet ....................................................................2-13

Figure 2-10. Observing LEDs to Verify Proper Operation ..........................................2-14

Figure 2-11. BayStack 450 Switch Self-Test Screen ..................................................2-15

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302401-D Rev 00

Figure 2-12. Nortel Networks Logo Screen ................................................................2-16

Figure 2-13. Main Menu .............................................................................................2-18

Figure 2-14. IP Configuration/Setup Screen (Standalone Switch) .............................2-19

Figure 2-15. Main Menu (Standalone Switch Example) .............................................2-21

Figure 2-16. Main Menu (Stack Configuration Example) ............................................2-21

Figure 2-17. IP Configuration/Setup Screen (Stack Configuration) ............................2-22

Figure 3-1. Map of Console Interface Screens ...........................................................3-3

Figure 3-2. Console Interface Main Menu ..................................................................3-4

Figure 3-3. IP Configuration/Setup Screen ................................................................3-8

Figure 3-4. SNMP Configuration Screen .............. ...... ....... ...... ...... ....... ...... ....... .......3 -13

Figure 3-5. System Characteristics Screen .......... ...... ....... ...... ...... ....... ...... ....... ...... .3 -15

Figure 3-6. Switch Configuration Menu Screen ........................................................3-18

Figure 3-7. MAC Address Table Screen ...................................................................3-21

Figure 3-8. VLAN Configuration Menu Screen .........................................................3-23

Figure 3-9. VLAN Configuration Screen ..................... ....... ...... ...... ....... ....................3-24

Figure 3-10. VLAN Port Configuration Screen ...........................................................3-27

Figure 3-11. VLAN Display by Port Screen ................................................................3-29

Figure 3-12. Traffic Class Configuration Screen .........................................................3-31

Figure 3-13. Port Configuration Screen (1 of 2) .........................................................3-32

Figure 3-14. Port Configuration Screen (2 of 2) .........................................................3-33

Figure 3-15. High Speed Flow Control Configuration Screen ....................................3-35

Figure 3-16. MultiLink Trunk Configuration Menu Screen ..........................................3-38

Figure 3-17. MultiLink Trunk Configuration Screen ....................................................3-40

Figure 3-18. MultiLink Trunk Utilization Screen (1 of 2) ....... ...................................... .3-42

Figure 3-19. MultiLink Trunk Utilization Screen (2 of 2) ....... ...................................... .3-43

Figure 3-20. Port Mirroring Configuration Screen ......................................................3-45

Figure 3-21. Rate Limiting Configuration Screen (1 of 2) ...........................................3-48

Figure 3-22. Rate Limiting Configuration Screen (2 of 2) ...........................................3-49

Figure 3-23. IGMP Configuration Screen ...................................................................3-51

Figure 3-24. Port Statistics Screen .............................................................................3-54

Figure 3-25. Console/Comm Port Configuration Screen ............................................3-58

Figure 3-26. Renumber Stack Units Screen ...............................................................3-65

Figure 3-27. Hardware Unit Information Screen .........................................................3-67

Figure 3-28. Spanning Tree Configuration Menu Screen ...........................................3-68

Figure 3-29. Spanning Tree Port Configuration Screen (1 of 2) .................................3-69

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xvii

Figure 3-30. Spanning Tree Port Configuration Screen (2 of 2) .................................3-70

Figure 3-31. Spanning Tree Switch Settings Screen ..................................................3-72

Figure 3-32. TELNET Configuration Screen ..............................................................3-75

Figure 3-33. Software Download Screen ...................................................................3-79

Figure 3-34. Configuration File Download/Upload Screen .........................................3-82

Figure 3-35. Event Log Screen ................. ...................................... ....... ...... ....... ...... .3-8 5

Figure 3-36. Sample Event Log Entry Showing Excessive Bad Entries .....................3-86

Figure 3-37. Sample Event Log Entry Exceeding the Write Threshold ......................3-87

Figure 3-38. Sample Event Log Entry Showing Flash Update Status ........................3-87

Figure 3-39. Self-Te st Scr een Aft er Resetting the Switc h ............... ....... ...... ....... ....... 3 -88

Figure 3-40. Nortel Networks Logo Screen ................................................................3-89

Figure 3-41. Self-Test Screen After Resetting to Default Settings ..............................3-91

Figure 3-42. Nortel Networks Logo Screen After Resetting to Default Settings .........3-92

Figure 3-43. Password Prompt Screen ......................................................................3-93

Figure 4-1. BayStack 450-24T/12T LED Display Panel ..............................................4-2

Figure 4-2. BayStack 450-12F LED Display Panel .....................................................4-3

Figure C-1. 400-4TX MDA F ront Panel ...................................................................... C-2

Figure C-2. 100BASE-FX MDA Front Panels .............................................................C-4

Figure C-3. 1000BASE-SX MDA Front Panels ..........................................................C-7

Figure C-4. 1000BASE-LX MDA Front Panels ......................................................... C-10

Figure C-5. Installing an MDA .................................................................................. C-12

Figure D-1. Configuring 802.1Q VLANs (1 of 2) ........................................................D-2

Figure D-2. Configuring 802.1Q VLANs (2 of 2) ........................................................D-3

Figure D-3. Configuring MultiLink Trunks ...................................................................D-4

Figure D-4. Configuring Port Mirroring (1 of 2) ..........................................................D-5

Figure D-5. Configuring Port Mirroring (2 of 2) ..........................................................D-6

Figure D-6. Configuring IGMP Snooping (1 of 3) ....................................................... D-7

Figure D-7. Configuring IGMP Snooping (2 of 3) ....................................................... D-8

Figure D-8. Configuring IGMP Snooping (3 of 3) ....................................................... D-9

Figure E-1. RJ-45 (8-Pin Modular) Port Connector ................................................... E-1

Figure E-2. MDI-X to MDI Cable Connections ........................................................... E-3

Figure E-3. MDI-X to MDI-X Cable Connections ....................................................... E-4

Figure E-4. DB-9 Console/Comm Port Connector ..................................................... E-5

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302401-D Rev 00

Tables

Table 1-1. BayStack 450 Switch LED Descriptions .................................................1-6

Table 1-2. International Power Cord Specifications ..................................................1-9

Table 2-1. Power-Up Sequence ..............................................................................2-14

Table 3-1. Console Interface Main Menu options .....................................................3-5

Table 3-2. IP Configuration/Setup Screen Fields .....................................................3-9

Table 3-3. SNMP Configuration Screen Fields ......................................................3-13

Table 3-4. System Characteristics Screen Fields ..................................................3-16

Table 3-5. Switch Configuration Menu Screen Options .........................................3-19

Table 3-6. MAC Address Table Screen Fields .......................................................3-21

Table 3-7. VLAN Configuration Menu Screen Options ...........................................3-23

Table 3-8. VLAN Configuration Screen Fields .......................................................3-25

Table 3-9. VLAN Port Configuration Screen Fields ................................................3-27

Table 3-10. VLAN Display by Port Screen Fields .....................................................3-30

Table 3-11. Traffic Class Configuration Screen Fields ..............................................3-31

Table 3-12. Port Configuration Screen Fields ..........................................................3-33

Table 3-13. High Speed Flow Control Configuration Screen Fields .........................3-35

Table 3-14. MultiLink Trunk Configuration Menu Screen Options .............................3-38

Table 3-15. MultiLink Trunk Configuration Screen Fields .........................................3-40

Table 3-16. MultiLink Trunk U til izati on Sc reen Fi elds .......................... ...... ..............3-43

Table 3-17. Port Mirroring Configuration Screen Fields ...........................................3-46

Table 3-18. Monitoring Modes ..................................................................................3-47

Table 3-19. Rate Limiting Configuration Screen Fields .............................................3-50

Table 3-20. IGMP Configuration Screen Fields .......................................................3-52

Table 3-21. Port Statistics Screen Fields .................................................................3-55

Table 3-22. Console/Comm Port Configuration Screen Fields ................................3-58

Table 3-23. Renumber Stack Units Screen Options ................................................3-66

Table 3-24. Spanning Tree Configuration Menu Screen Options .............................3-68

Table 3-25. Spanning Tree Port Configuration Screen Fields ..................................3-70

Table 3-26. Spanning Tree Switch Settings Parameters ..........................................3-73

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xix

Table 3-27. TELNET Configuration Screen Fields ...................................................3-76

Table 3-28. Software Download Screen Fields ........................................................3-79

Table 3-29. LED Indications During the Software Download Process .....................3-81

Table 3-30. Configuration File Download/Upload Screen Fields .............................3-83

Table 3-31. Parameters Not Saved to the Configuration File ....................................3-84

Table 4-1. BayStack 450 Switch LED Descriptions .................................................4-3

Table 4-2. Corrective Actions ...................................................................................4-7

Table B-1. Operating Range for 1000BASE-SX ....................................................... B-1

Table B-2. 1000BASE-SX Transmit Characteristics ................................................. B-2

Table B-3. 1000BASE-SX Receive Characteristics ................................................. B-3

Table B-4. Worst-Case 1000BASE-SX Power Budget and P e nalties ...................... B-4

Table B-5. Operating Range for 1000BASE-LX ....................................................... B-4

Table B-6. 1000BASE-LX Transmit Characteristics ................................................ B-5

Table B-7. 1000BASE-LX Receive Characteristics ................................................. B-5

Table B-8. Worst-Case 1000BASE-LX Power Budget and Penalties ....................... B-6

Table C-1. 400-4TX MDA Components ...................................................................C-2

Table C-2. 100BASE-FX MDA Components ........................................................... C-5

Table C-3. 1000BASE-SX MDA Components .......................................................... C-8

Table C-4. 1000BASE-LX MDA Components ........................................................C-11

Table E-1. RJ-45 Port Connector Pin Assignments ................................................ E-2

Table E-2. DB-9 Console/Comm Port Connector Pin Assignments ........................ E-5

Table F-1. Factory Default Settings for the BayStack 450 Switch ............................F-1

302401-D Rev 00

Preface

Congratulations on your purchase of the BayStack 450 switch, part of the

Nortel Networks products.

There are three versions of the BayStack 450 switch: the Model 450-24T, the Model 450-12T, and the Model 450-12F. This guide describes the features, uses, and installation procedures for the three versions. (Unless otherwise specified, the terms “BayS tack 450 switch” and “switch” refer to all switch versions.)

BayStack 450 switches include a dedicated Uplink Module slot for attaching optional media dependent adapters (MDAs) that support a range of media types, including gigabit Ethernet. Installation instructions are included with each MDA (see your Nortel Networks sales representative for ordering information).

BayStack 10/100/1000 Switch line of communications

Audience

302401-D Rev 00

For more information about the MDAs, see Appendix C, “Media Dependent Adapters.”

BayStack 450 switches c onfigured with BayStack 450 software version V1.1.0 or later provide Fail-Safe stackability when you install the optional BayStack 400-ST1 Cascade Module. Installation instructions are included with each BayStack 400-ST1 Cascade Module (see your Nortel Networks sales representative for ordering information).

For more information about the BayStack 400-ST1 Cascade Module, see “Stack Operation” on page 1-23.

This guide is intended for network instal lers and system administrato rs who are responsible for installing, configuring, or maintaining networks. This guide assumes that you unders ta nd t he t ran smission and management protocols used on your network.

xxi

Using the BayStack 450 10/100/1000 Series Switch

Organization

This guide has four chapters, seven appendixes, and an index:

If you want to: Go to:

Learn about the BayStack 450 switch and its key features Chapter 1 Install the BayStack 450 switch on a flat surface or in a 19-inch

equipment rack, and verify its operation Connect to the BayStack 450 switch Console/Comm Port and

learn how to use the console interface (CI) menus to configure and manage a standalone switch or a stack configuration

Troubleshoot and diagnose problems with the BayStack 450 switch

View operational a nd environmental specifications that apply to the BayStack 450 switch

View gigabit fiber optical characteristics of the (optional) 1000BASE-SX/LX MDAs

Learn about optional media dependent adapters (MDAs) you can use with the BayStack 450 switch

Learn about Quick-Step flowcharts for using the BayStack 450 switch features

Learn more about the BayStack 450 switch connectors (ports) and pin assignments

View a listing of the factory default settings for the BayStack 450 switch

Chapter 2

Chapter 3

Chapter 4

Appendix A

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F

xxii

View a sample BootP configuration file Appendix G View an alphabetical listing of the topics and subtopics in this

Index

guide, with cross-references to relevant information

302401-D Rev 00

Text Conventions

This guide uses the following text conventions:

Preface

bold text

Indicates command names and options and text that you need to enter.

Example: Enter Example: Use the

show ip {alerts | routes

dinfo

command.

italic text Indicates file and directory names, new terms, book

titles, and variables in command syntax descriptions. Where a variable is two or more words, the words are connected by an underscore.

Example: If the command syntax is:

show at

valid_route

is one variable and you substitute one value

for it.

screen text Indicates system output, for example, prompts and

system messages. Example:

Set Trap Monitor Filters

[Enter] Named keys in text are enclosed in square brackets.

The notation [Enter] is used for the Enter key and the Return key.

Acronyms

302401-D Rev 00

[Ctrl]-C Two or more keys that must be pr essed simultaneously

are shown in text linked with a hyphen (-) sign.

This guide uses the following acronyms:

AUI attachmen t unit interface BootP Bootstrap Protocol CSMA/CD carrier sense multiple access/collision detection

xxiii

Using the BayStack 450 10/100/1000 Series Switch

IP Internet P rotocol ISO International Organization for Stan dardization MAC media access control MAU media access unit MDI-X medium dependent interface crossover PPP Point-to-Point Protocol SNMP Simple Network Management Protocol STP s hielded twisted pair

Related Publications

For more informat ion about using the BayStack 4 50 s w it ch, refer to the follo w ing publications:

• Installing Media Dependent Adapters (MDA)s (Bay Networks part number 302403-C)

Describes how to install optional MDAs to your BayStack 450 switch.

xxiv

• Installing the BayS tack 40 0-ST1 Cascade Modul e (Bay Netw orks part number 304433-A)

Describes how to connect up to eight BayStack 450 switches into a stack configuration by installing optional BayStack 400-ST1 Cascade Modules.

• Wall Mounting Instructions (Bay Networks part number 304602-A) Describes how to mount up to two BayStac k 350 or BayStack 450 swit ches on

any wall that can safely support the weight of the switches, including any attached cables.

You can print selected technical manuals and release notes free, directly from the Internet. Go to support.baynetworks.com/library/tpubs/. Find the product for which you need documentation. Then locate the specific category and model or version for your hardw are or soft ware product . Usi ng Adobe Ac robat Re ader, you can open the manuals and releas e notes, search for the sections you ne ed, and print them on most standard printers. You can download Acrobat Reader free from the Adobe Systems Web site, www.adobe.com.

302401-D Rev 00

You can purchase selected documentation sets, CDs, and technical publications through the collateral catalog. The catalog is located on the World Wide Web at

support.baynetworks.com/catalog.html and is divided into sections arranged

alphabetically:

• The “CD ROMs” section lists available CDs.

• The “Guides/Books” section lists books on technical topics.

• The “Technical Manuals” section lists available printed documentation sets.

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 Nort el Net wor ks s ervice pr ogram, c ontact one of the f ollowing Nortel Networks Technical Solutions Centers:

Preface

Technical Solutions Center Telephone Number

Billerica, MA 800-2LANWAN (800-252-6926) Santa Clara, CA 800-2LANWAN (800-252-6926) Valbonne, France 33-4-92-96-69-68 Sydney, Australia 61-2-9927-8800 Tokyo, Japan 81-3-5402-7041

302401-D Rev 00

xxv

Chapter 1

BayStack 450 10/100/10 00 Series Switches

This chapter introduces the BayStack 450 switch and covers the following topics:

• Physical description

• Summary of features

• Network configuration examples

• Overview of main features

Physical Description

There are three versions of the BayStack 450 switch: the BayStack 450-24T switch, the BayStack 450-12T switch, and the BayStack 450-12F switch (Figure 1-1

BayStack 450-24T

BayStack 450-12T

BayStack 450-12F

Figure 1 -1. BayStack 450 Switch Versions

302401-D Rev 00

BS45001B

1-1

Using the BayStack 450 10/100/1000 Series Switch

Front Panel

Figure 1-2 shows the front- panel con f igurat ions for the thr ee Bay Stack 450 switch

models. Descriptions of th e front-pane l components follow the figures. For a description of the components located on the back panel of the BayStack

450 switch, see “Back Panel

” on page 1-8.

Comm Port

Uplink/Expansion Module

Comm Port

Uplink/Expansion Module

Comm Port

Uplink/Expansion Module

2826 2725

5713 9

682 4 10 12

17 1913 15 21

18 2014 16 22 24

Pwr Up Status RPSUBase

Cas

Dwn

10/100 Activity 10/100 Activity

BayStack 450-24T

13 1514

3 4

5713 9

682 4 10 12

Cas

Pwr

Dwn

Status RPSU

Base

10/100 Activity 10/100 Activity

BayStack 450-12T

1614 1513

5713 96824 10 1211

Status RPSUBase

Pwr Up

Cas

Dwn

Link F Dx Activity

BayStack 450-12F

= Comm Port

= Uplink/Expansion slot

= Port connectors

= LED display panel

Figure 1-2. BayStack 450 Switch Front Panels

1-2

BS45002B

302401-D Rev 00

BayStack 450 10/100/1000 Series Switches

Comm Port

The Comm Port (also referred to as the Console/Comm Port) allows you to access the console interface (CI) screens and customize your network using the supplied menus and screens (see Chapter 3, “Using the Console Interface”).

The Console/Comm Port is a DB-9, RS-232- D male serial port connector. Y ou can use this connector to connect a management station or console/terminal to the switch by using a straight-through DB-9 to DB-9 standard serial port cable (see “Console/Comm Port” on page 2-10).

The Console/Comm Port is configured as a data communications

Note:

equipment (DCE) connector. Ensure that your RS-232 cable pinouts are configured for DCE connections (see “DB-9 (RS-232- D) Co nsol e/Comm Port Connector” on page E-5).

The console port default settings are: 9600 baud with eight data bits, one stop bit, and no parity as the communications format, with flow control set to disabled.

Uplink/Expansion Slot

302401-D Rev 00

The Uplink/Expansion slot allows you to attach optional media dependent adapters (MDAs) that support a range of media types (see Appendix C, “Media Dependent Adapters” fo r more informati on about MDA types available fro m Nortel Networks).

Port Connectors

10BASE-T/100BASE-TX Ports

The BayStack 450-24T switch and the BayStack 450-12T switch use 10BASE-T/100BASE-TX RJ-45 (8-pin modular) port connectors.

The RJ-45 port connectors on BayStack 450 switches manufactured

Note:

prior to December 1998 are numbered 1 to 12 and 13 to 24, in succe ssion from left to right. Later uni ts use por t conn ectors t hat are c onf igure d with one o r tw o dual, six-port groups, numbered 1 to 12 and 13 to 24. The top rows are odd numbered and the bottom rows are even numbered (see Figure 1-2

page 1-2

). Port-specific examples in this guide show the appropriate port

connections when required; other examples apply to both versions.

1-3

Using the BayStack 450 10/100/1000 Series Switch

The 10BASE-T/100BASE-TX port connectors are configured as MDI-X (media-dependent int erface-cr ossov er). These ports conne ct over st raight cables to the network in terface controller (NIC) card in a node or s erver, similar to a conventional Ethernet repeater hub. If you are connecting to an Ethernet hub or Ethernet switch, you need a crossover cable unless an MDI connection exists on the associated port of the attached device (see “MDI and MDI-X Devices” on page E-2).

The BayStack 450-24T switch and the BayStack 450-12T switch use autosensing ports that are designed to operate at 10 Mb/s or at 100 Mb/s, depending on the connecting de vice. Th ese ports supp ort the I EEE 802.3u auto ne gotiation s tandard, which means that when a port is connec ted to an other de vice t hat also supports the IEEE 802.3u standard, the two devices negotiate the best speed and duplex mode.

The 10BASE-T/100BASE-TX switch ports also support half- and full-duplex mode operation (see “Connecting the 10BASE-T/100BASE-TX Ports” on page 2-8).

The 10BASE-T/100BASE-TX RJ-45 ports can connect to 10 Mb/s or 100 Mb/s Ethernet segments or nodes.

1-4

Note: Use only Category 5 copper unshielded twisted pair (UTP) cable

connections when connecting 10BASE-T/100BASE-TX ports.

See Appendix E, “Connectors and Pin Assignments” for more information about the RJ-45 port connectors.

100BASE-FX MT-RJ Ports

The BayStack 450-12F switch uses longwave 1300 nanometer (nm) MT-RJ port connectors to attach devices over 62.5/125 or 50/125 micron multimode fiber optic cable.

The BayStack 450-12F switch conforms to the IEEE 802.3u 100BASE-FX standard and can be used for fiber-based 100 Mb/s connections (2 km/6562 ft maximum distance) to other compatible Fast Ethernet devices. Single-mode fiber cable is not supported.

302401-D Rev 00

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