Nortel Networks 350 User Manual

Software Release V2.0.0
Part No. 309979-A Rev 00

January 2000
4401 Great America Parkway

Santa Clara, CA 95054

Using the BayStack 350 10/100/1000 Series Switch

Copyright © 2000 Nortel Networks

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

and recommendations in this document are believed to be accurate and reliable, but are presented without express or
implied warranty. Users must take full 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 relia 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 350 switch is shi elded a gainst the ge neratio n of radio in terfere nce
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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309979-A Rev 00

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

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 3 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 350 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

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309979-A 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 NETW ORKS OR ITS LICENS OR S BE LIABLE FOR
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252.227-7013, for agencies of t he Department of Defense or their successors, whichever is applicable.

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EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT.

309979-A Rev 00

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Contents

Preface

Audience ......................................... ................................ ................................ .................xix

Organization .................................................................................................................... xx

Text Conventions .............................................................................................................xxi

Acronyms ........................... .......................... .......................... ......................... ................xxii

Related Publications ......................................................................................................xxiii

How to Get Help ............................................................................................................xxiv

Chapter 1
BayStack 350 10/100/1000 Series Switches

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

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

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

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

10BASE-T/100BASE-TX Port Connectors ........................................................1-3

LED Display Panel .............................................................................................1-4

Back Panel ...............................................................................................................1-6

AC Power Receptacle ........................................................................................1-7

Cooling Fans ......................................................................................................1-8

Features ..........................................................................................................................1-8

IEEE 802.1p Prioritizing .........................................................................................1-10

Virtual Local Area Networks (VLANs) ....................................................................1-11

RADIUS-Based Network Security ..........................................................................1-12

MultiLink Trunking ....... ...... ....... ...... ....... ...... ....... ...... ....... ...... ...... ...........................1-12

IGMP Snooping Feature ........................................................................................1-12

Port Mirroring .........................................................................................................1-13

Flash Memory Storage .......................... ...... ....... ...... ....................................... ...... .1-13

Storage of Switch Software Image ..................................................................1-13

Storage of Configuration Parameters ..............................................................1-13

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SNMP MIB Suppor t ..... ...... ....... ...... ....... ...... ....... ...................................... ....... ...... .1-14

SNMP Trap Support .......... ....... ...... ....... ...... ....................................... ...... ....... ...... .1-1 4

BootP Automatic IP Configuration ..........................................................................1-15

Autosensing and Autonegotiation ...........................................................................1-15

Configuration and Switch Management .................................................................1-16

Network Configuration ..................................................................................................1-16

Desktop Switch Application ....................................................................................1-17

Segment Switch Application ...................................................................................1-18

High-Density Switched Workgroup Applica tio n ........................... ....... ...... ....... ....... 1 -1 9

IEEE 802.1Q VLAN Workgroups ..................................................................................1-20

IEEE 802.1Q Tagging .............................................................................................1-21

VLANs Spanning Multiple Switches .......................................................................1-26

VLANs Spanning Multiple 802.1Q Tagged Switches .......................................1-26

VLANs Spanning Multiple Untagged Switches ................................................1-27

Shared Servers ......................................................................................................1-29

VLAN Workgroup Summary ...................................................................................1-34

VLAN Configuration Rules .....................................................................................1-36

IGMP Snooping ............................................................................................................1-37

IGMP Snooping Configuration Rules .....................................................................1-41

IEEE 802.1p Prioritizing ...............................................................................................1-42

MultiLink Trunks ................. ...... ....................................... ....... ...... ...... ....... ...... ....... ...... .1 -46

Client/Server Configuration Using MultiLink Trunks ...............................................1-47

Trunk Configuration Screen Examples ...................................................................1-49

Trunk Configuration Screen for Switch S1 .......................................................1-49

Trunk Configuration Screen for Switch S2 .......................................................1-52

Trunk Configuration Screen for Switch S3 .......................................................1-54

Trunk Configuration Screen for Switch S4 .......................................................1-56

Before Configuring Trunks ......................................................................................1-58

MultiLink Trunking Configuration Rules . ...................................... ....... ...... ....... ...... .1-58

Spanning Tree Considerations for MultiLink Trunks ...............................................1-60

Additional Tips About the MultiLink Trunking Feature ............................................1-63

Port Mirroring (Conversation Steering) .........................................................................1-64

Port-Based Mirroring Configuration ....... ...... ....... ...................................... ....... ...... .1-65

Address-Based Mirroring Configuration .................................................................1-67

Port Mirroring Configuration Rules .........................................................................1-70

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Chapter 2
Installing the BayStack 350 Switch

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

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

Installing the BayStack 350 Switch on a Flat Surface ..............................................2-3

Installing the BayStack 350 Switch in a Rack ..........................................................2-4

Attaching Devices to the BayStack 350 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

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 ................................ ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ...3-7

Choosing a BootP Request Mode ..................................................................................3-9

BootP Disabled ......................................................................................................3-10

BootP or Last Address ...........................................................................................3-10

BootP When Needed .............................................................................................3-11

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

SNMP Configuration .......... ...... ....... ...... ....... ...... ....... ...... ....... ...... ...... ...........................3-12

System Characteristics ...... ...... ....... ...... ....... ...................................... ....... ...... ....... ...... .3-1 4

Switch Configuration .....................................................................................................3-16

MAC Address Table ................................................................................................3-18

VLAN Configuration Menu .....................................................................................3-20

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

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VLAN Port Configuration .................................................................................3-28

VLAN Display By Port ......................................................................................3-31

Traffic Class Configuration ...............................................................................3-32

Port Configuration ..................................................................................................3-34

High Speed Flow Control Configuration .................................................................3-36

Choosing a High Speed Flow Control Mode ..........................................................3-38

Symmetric Mode ..............................................................................................3-38

Asymmetric ........... ............................................. ............................................. .3-38

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

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

MultiLink Trunk Utilization Scre en ................ ...................................... ....... ....... 3 -43

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

Rate Limiting Configuration ....................................................................................3-49

IGMP Configuration Menu ......................................................................................3-52

IGMP Configuration .........................................................................................3-53

Multicast Group Membership ....................... ...... ....... ...... ...... ....... ....................3-56

Port Statistics .........................................................................................................3-58

Console/Comm Port Configuration ...............................................................................3-62

Hardware Unit Information ............................................................................................3-68

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

Spanning Tree Port Configuration ..........................................................................3-70

Display Spanning Tree Switch Settings ..................................................................3-74

TELNET Configuration .................................................................................................3-77

Software Download .......................................................................................................3-80

Configuration File .........................................................................................................3-84

Display Event Log .........................................................................................................3-86

Excessive Bad Entries ...........................................................................................3-88

Write Threshold ......................................................................................................3-88

Flash Update .. ...... ....... ...... ....... ...... ....... ...... ....... ...... ....................................... ...... .3-89

Reset ............................................................................................................................3-89

Reset to Default Settings ..............................................................................................3-92

Logout ................................ ................... .................... ................... ................... ..............3 -95

Chapter 4
Troubleshooting

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

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Diagnosing and Correcting the Problem ......................... ....... ...... ...... .............................4-3

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

Port Connection Problems .......................................................................................4-6

Autonegotiation Modes ......................................................................................4-6

Port Interface .....................................................................................................4-7

Software Download Error Codes ....................................................................................4-7

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-3

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

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

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

Electromagnetic Immunity ............................................................................................. A-4

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

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

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

1000BASE-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-5

Configuring Port Mirroring .............................................................................................D-6

Configuring IGMP Snooping .......................................................................................... D-8

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

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

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Figures

Figure 1-1. BayStack 350 Switch Versions .................................................................1-1

Figure 1-2. BayStack 350 Switch Front Panels ..........................................................1-2

Figure 1-3. LED Display Panel ...................................................................................1-5

Figure 1-4. BayStack 350 Switch Back Panel ............................................................1-6

Figure 1-5. BayStack 350-24T Used as a Desktop Switch .......................................1-17

Figure 1-6. BayStack 350-24T Used as a Segment Switch .....................................1-18

Figure 1-7. Configuring Power Workgroups and a Shared Media Hub ....................1-19

Figure 1-8. Port-Based VLAN Example ......... ....... ...... ....... ...... ...... ....... ...... ....... ...... .1 -20

Figure 1-9. Default VLAN Settings ...........................................................................1-22

Figure 1-10. Port-Based VLAN Assignment ................. ....................................... ...... .1-23

Figure 1-11. 802.1Q Tagging (After Port-Based VLAN Assignment) .........................1-23

Figure 1-12. Protocol-Based VLAN Assignment ........................................................1-24

Figure 1-13. 802.1Q Tagging (After Protocol-Based VLAN Assignment) ...................1-24

Figure 1-14. 802.1Q Tag Assignment .........................................................................1-25

Figure 1-15. 802.1Q Tagging (After 802.1Q Tag Assignment) ...................................1-25

Figure 1-16. VLANs Spanning Multiple 802.1Q Tagged Switches .............................1-26

Figure 1-17. VLANs Spanning Multiple Untagged Switches ......................................1-27

Figure 1-18. Possible Problems with VLANs and Spanning Tree Protocol .................1-28

Figure 1-19. Multiple VLANs Sharing Resources .......................................................1-29

Figure 1-20. VLAN Broadcast Domains Within the Switch .........................................1-30

Figure 1-21. Default VLAN Configuration Screen Example ........................................1-31

Figure 1-22. VLAN Configuration Screen Example ....................................................1-32

Figure 1-23. Default VLAN Port Configuration Screen Example ................................1-33

Figure 1-24. VLAN Port Configuration Screen Example ............................................1-34

Figure 1-25. VLAN Configuration Spanning Multiple Switches ..................................1-35

Figure 1-26. IP Multicast Propagation with IGMP Routing .........................................1-38

Figure 1-27. BayStack 350-24T Filtering IP Multicast Streams (1 of 2) .....................1-39

Figure 1-28. BayStack 350-24T switches Filtering IP Multicast Stream (2 of 2) ........1-40

Figure 1-29. Prioritizing Packets ................................................ ...... ....... ...... ..............1-42

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Figure 1-30. Port Transmit Queue ..............................................................................1-43

Figure 1-31. Default Traffic Class Configuration Screen Example .............................1-44

Figure 1-32. Setting Port Priority Example .................................................................1-45

Figure 1-33. Switch-to-Switch Trunk Configuration Example .....................................1-46

Figure 1-34. Switch-to-Server Trunk Configuration Example .....................................1-47

Figure 1-35. Client/Server Configuration Example .....................................................1-48

Figure 1-36. Choosing the MultiLink Trunk Configuration Screen ..............................1-49

Figure 1-37. MultiLink Trunk Configuration Screen for Switch S1 ..............................1-50

Figure 1-38. MultiLink Trunk Configuration Screen for Switch S2 ..............................1-52

Figure 1-39. MultiLink Trunk Configuration Screen for Switch S3 ..............................1-54

Figure 1-40. MultiLink Trunk Configuration Screen for Switch S4 ..............................1-56

Figure 1-41. Path Cost Arbitration Example ...............................................................1-60

Figure 1-42. Example 1: Correctly Configured Trunk .................................................1-61

Figure 1-43. Example 2: Detecting a Misconfigured Port ................ ....... ...... ....... ...... .1 -62

Figure 1-44. Port-Based Mirroring Configuration Exampl e .......................... ....... ...... .1-65

Figure 1-45. Port Mirroring Port-Based Screen Example ...........................................1-67

Figure 1-46. Address-Based Mirroring Configuration Example ..................................1-68

Figure 1-47. Port Mirroring Address-Based Screen Example ....................................1-69

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 350 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 350 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 350 Switch Self-Test Screen ..................................................2-15

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

Figure 2-13. Main Menu .............................................................................................2-17

Figure 2-14. IP Configuration/Setup Screen ..............................................................2-18

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

xiv

309979-A Rev 00

Figure 3-4. SNMP Configuration Screen .............. ...... ....... ...... ...... ....... ...... ....... .......3 -12

Figure 3-5. System Characteristics Screen .......... ...... ....... ...... ...... ....... ...... ....... ...... .3 -14

Figure 3-6. Switch Configuration Menu Screen ........................................................3-16

Figure 3-7. MAC Address Table Screen ...................................................................3-19

Figure 3-8. VLAN Configuration Menu Screen .........................................................3-21

Figure 3-9. VLAN Configuration Screen ..................... ....... ...... ...... ....... ....................3-23

Figure 3-10. VLAN Port Configuration Screen ...........................................................3-29

Figure 3-11. VLAN Display by Port Screen ................................................................3-31

Figure 3-12. Traffic Class Configuration Screen .........................................................3-33

Figure 3-13. Port Configuration Screen (1 of 2) .........................................................3-34

Figure 3-14. Port Configuration Screen (2 of 2) .........................................................3-35

Figure 3-15. High Speed Flow Control Configuration Screen ....................................3-37

Figure 3-16. MultiLink Trunk Configuration Menu Screen ..........................................3-39

Figure 3-17. MultiLink Trunk Configuration Screen ....................................................3-41

Figure 3-18. MultiLink Trunk Utilization Screen (1 of 2) ....... ...................................... .3-43

Figure 3-19. MultiLink Trunk Utilization Screen (2 of 2) ....... ...................................... .3-44

Figure 3-20. Port Mirroring Configuration Screen ......................................................3-46

Figure 3-21. Rate Limiting Configuration Screen (1 of 2) ...........................................3-49

Figure 3-22. Rate Limiting Configuration Screen (2 of 2) ...........................................3-50

Figure 3-23. IGMP Configuration Menu Screen .........................................................3-52

Figure 3-24. IGMP Configuration Screen ...................................................................3-54

Figure 3-25. Multicast Group Membership Screen .....................................................3-57

Figure 3-26. Port Statistics Screen .............................................................................3-58

Figure 3-27. Console/Comm Port Configuration Screen ............................................3-62

Figure 3-28. Hardware Unit Information Screen .........................................................3-68

Figure 3-29. Spanning Tree Configuration Menu Screen ...........................................3-69

Figure 3-30. Spanning Tree Port Configuration Screen (1 of 2) .................................3-71

Figure 3-31. Spanning Tree Port Configuration Screen (2 of 2) .................................3-72

Figure 3-32. Spanning Tree Switch Settings Screen ..................................................3-74

Figure 3-33. TELNET Configuration Screen ..............................................................3-77

Figure 3-34. Software Download Screen ...................................................................3-81

Figure 3-35. Configuration File Download/Upload Screen .........................................3-84

Figure 3-36. Event Log Screen ................. ...................................... ....... ...... ....... ...... .3-8 7

Figure 3-37. Sample Event Log Entry Showing Excessive Bad Entries .....................3-88

Figure 3-38. Sample Event Log Entry Exceeding the Write Threshold ......................3-88

309979-A Rev 00

xv

Figure 3-39. Sample Event Log Entry Showing Flash Update Status ........................3-89

Figure 3-40. Self-Te st Scr een Aft er Resetting the Switc h ............... ....... ...... ....... ....... 3 -90

Figure 3-41. Nortel Networks Logo Screen ................................................................3-91

Figure 3-42. Self-Test Screen After Resetting to Default Settings ..............................3-93

Figure 3-43. Nortel Networks Logo Screen After Resetting to Default Settings .........3-94

Figure 3-44. Password Prompt Screen ......................................................................3-95

Figure 4-1. BayStack 350 LED Display Panels ..........................................................4-2

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 3) ........................................................D-2

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

Figure D-3. Configuring 802.1Q VLANs (3 of 3) ........................................................D-4

Figure D-4. Configuring MultiLink Trunks ...................................................................D-5

Figure D-5. Configuring Port Mirroring (1 of 2) ..........................................................D-6

Figure D-6. Configuring Port Mirroring (2 of 2) ..........................................................D-7

Figure D-7. Configuring IGMP Snooping (1 of 3) ....................................................... D-8

Figure D-8. Configuring IGMP Snooping (2 of 3) ....................................................... D-9

Figure D-9. Configuring IGMP Snooping (3 of 3) ..................................................... D-10

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

xvi

309979-A Rev 00

Tables

Table 1-1. LED Descriptions .....................................................................................1-5

Table 1-2. International Power Cord Specifications ..................................................1-7

Table 1-3. Supported SNMP Traps .........................................................................1-14

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 ......................................................3-8

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

Table 3-4. System Characteristics Screen Fields ...................................................3-15

Table 3-5. Switch Configuration Menu Screen Options ..........................................3-17

Table 3-6. MAC Address Table Screen Fields ........................................................3-19

Table 3-7. VLAN Configuration Menu Screen Options ...........................................3-21

Table 3-8. VLAN Configuration Screen Fields ........................................................3-23

Table 3-9. Prefined Protocol Identifier (PID) ...........................................................3-26

Table 3-10. Reserved PIDs .......................................................................................3-27

Table 3-11. VLAN Port Configuration Screen Fields .................................................3-29

Table 3-12. VLAN Display by Port Screen Fields ......................................................3-32

Table 3-13. Traffic Class Configuration Screen Fields ..............................................3-33

Table 3-14. Port Configuration Screen Fields ...........................................................3-35

Table 3-15. High Speed Flow Control Configuration Screen Fields ..........................3-37

Table 3-16. MultiLink Trunk Configuration Menu Screen Options .............................3-40

Table 3-17. MultiLink Trunk Configuration Screen Fields ..........................................3-41

Table 3-18. MultiLink Trunk U til izati on Sc reen Fi elds ...............................................3-44

Table 3-19. Port Mirroring Configuration Screen Fields ............................................3-46

Table 3-20. Monitoring Modes ..................................................................................3-48

Table 3-21. Rate Limiting Configuration Screen Fields .............................................3-51

Table 3-22. IGMP Configuration Menu Screen Options ............................................3-53

Table 3-23. IGMP Configuration Screen Fields ........................................................3-54

Table 3-24. Multicast Group Membership Screen Options .......................................3-57

Table 3-25. Port Statistics Screen Fields ..................................................................3-59

309979-A Rev 00

xvii

Table 3-26. Console/Comm Port Configuration Screen Fields .................................3-62

Table 3-27. Spanning Tree Configuration Menu Screen Options ..............................3-69

Table 3-28. Spanning Tree Port Configuration Screen Fields ...................................3-72

Table 3-29. Spanning Tree Switch Settings Parameters ...........................................3-75

Table 3-30. TELNET Configuration Screen Fields ....................................................3-78

Table 3-31. Software Download Screen Fields .........................................................3-81

Table 3-32. LED Indications During the Software Download Process ......................3-83

Table 3-33. Configuration File Download/Upload Screen Fields ..............................3-85

Table 3-34. Parameters Not Saved to the Configuration File ....................................3-86

Table 4-1. LED Descriptions .....................................................................................4-3

Table 4-2. Corrective Actions ....................................................................................4-5

Table 4-3. Software Download Error Codes .............................................................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 350 Switch ............................F-1

xviii

309979-A Rev 00

Preface

Congratulations on your purchase of the BayStack™ 350 switch, part of the
Nortel Networks
products.

There are two versions of the BayStack 350 switch: the Model 350-24T, and the
Model 350-12T. This guide describes the features, uses, and installation
procedures for the tw o vers ions. (Unles s otherwise specif ied, th e terms “BaySta ck
350 switch” and “switch” refer to both switch versions.)

BayStack 350 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

309979-A Rev 00

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

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.

xix

Using the BayStack 350 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 350 switch and its key features Chapter 1
Install the BayStack 350 switch on a flat surface or in a 19-inch

equipment rack, and verify its operation
Connect to the BayStack 350 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 350
switch

View operational a nd environmental specifications that apply to
the BayStack 350 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 350 switch

Learn about Quick-Step flowcharts for using the BayStack 350
switch features

Learn more about the BayStack 350 switch connectors (ports)
and pin assignments

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

Chapter 2

Chapter 3

Chapter 4

Appendix A

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F

xx

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

309979-A 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

<

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.

309979-A Rev 00

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

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

xxi

Using the BayStack 350 10/100/1000 Series Switch

Acronyms

This guide uses the following acronyms::

AUI attachmen t unit interface
BootP Bootstrap Protocol
BPDU Bridge Protocol Data Unit
CI console interface
CRC cyclic redundancy check
CSMA/CD carrier sense multiple access/collision detection
CTS clear to send
DCE data communications equipment
DSR data set ready
DTE data termin al equipment
ECM Entity Coordination Management
FID filtering database identifier

xxii

HRPSU high-power redundant power supply unit
IGMP Internet Gateway Management Protocol
IP Internet P rotocol
ISO International Organization for Stan dardization
LED light emitting diode
MAC media access control
MAU media access unit
MDA media dependent adapter
MDI medium dependent interface
MDI-X medium dependent interface- cr oss o ver
MIB Management Information Base
NIC network interface controller
NMS network management station
PID Protocol Ide ntifier

309979-A Rev 00

Preface

PPP Point-to-Point Protocol
PVID port VLAN identifier
RARP Reverse Address Resolution Protocol
RMON remote monitoring
RPSU redundant power supply uni t
SNMP Simple Network Management Protocol
STA Spanning Tree Algorithm
STP Spanning Tree Protocol
TELNET Network Virtual Terminal Protocol
TFTP Trivial File Transfer Protocol
UTP unshielded twisted pair
VID VLAN identifier
VLAN virtual local area network

Related Publications

For more informat ion about using the BayStack 3 50 s w it ch, refer to the follo w ing
publications:

• Installing Media Dependent Adapters (MDA)s (Part number 302403-C)
Describes how to install optional media dependent adapters (MDA)s to your

BayStack 350 switch.

• Wall Mounting Instruct ions (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.

• Reference for the BayStack 350/410/450 Management Software Operations
(Part number 304935-B)

Describes the Nortel Networks Device Manager software, a set of graphical
network management applications you can use to configure and manage the
BayStack 350/410/450 switches.

309979-A Rev 00

xxiii

Using the BayStack 350 10/100/1000 Series Switch

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.

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

xxiv

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:

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

309979-A Rev 00

Chapter 1

BayStack 350 10/100/10 00 Series Switches

This chapter introduces the BayStack 350 switch and covers the following topics:

• Physical description

• Summary of features

• Network configuration examples

• Overview of main features

Physical Description

There are two versions of the BayStack 350 switch: the BayStack 350-24T switch
and the BayStack 350-12T switch (Figure 1-1

BayStack 350-24T

BayStack 350-12T

Figure 1 -1. BayStack 350 Switch Versions

309979-A Rev 00

).

3

3

BS35001A

1-1

Using the BayStack 350 10/100/1000 Series Switch

Front Panel

Figure 1-2 shows the front-panel configurations for the two BayStack 350 switch

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

350 switch, see “Back Panel

” on page 1-6.

1

Comm Port

Uplink/Expansion Module

1

Comm Port

Uplink/Expansion Module

1

= Comm Port

2

= Uplink/Expansion slot

3

= 10BASE-T/100BASE-TX port connectors

4

= LED display panel

2

2826 2725

2

16

13 1514

3

3

5713 9

682 4 10 12

11

17 1913 15 21

18 2014 16 22 24

23

Pwr

Status

BayStack 350-24T

3 4

3

5713 9

682 4 10 12

11

Pwr

Status

BayStack 350-12T

4

10/100
Activity
10/100
Activity

10/100
Activity
10/100
Activity

BS35002A

Figure 1-2. BayStack 350 Switch Front Panels

1-2

309979-A Rev 00

BayStack 350 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 runs at 9600 baud and uses eight data bits, one stop bit, and no
parity as the communications format, with flow control set to disabled.

Uplink/Expansion Slot

309979-A 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).

10BASE-T/100BASE-TX Port Connectors

BayStack 350 switch es use 10BASE-T/100BASE-TX RJ-45 (8-pin modular) port
connectors.

The RJ-45 port connectors on BayStack 350 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

on

connections when required; other examples apply to both versions.

1-3

Using the BayStack 350 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 hu b. If you are connecting t o another 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 switches use autosensing ports that are designed to operate at 10 Mb/s or at
100 Mb/s, depending on the connecting device. These ports support the IEEE

802.3u autonegotiation standard, which means that when a port is connected to

another device that 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 switch uses 10BASE-T/100BASE-TX RJ-45 port connectors to connect to
10 Mb/s or 100 Mb/s Ethernet segments or nodes.

1-4

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

Note:

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

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

LED Display P anel

Figure 1-3

shows the LED display panels for the BayStack 350-24T and the

BayStack 350-12T models.

The LED display panel configuration for your switch may be different

Note:

than shown in Figure 1-3
note in “

Refer to Table 1-1

10BASE-T/100BASE-TX Port Connectors” on page 1-3).

for a description of the LEDs.

, depending on the date of manufacturing (see the

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

BayStack

Pwr

Status

BayStack

Pwr

Status

350-24T Switch

153

2642220 241814 1612810

BayStack 350-24T

350-12T Switch

153 1179

26412810

10/100
Activity
10/100
Activity

1713 151179

2119 23

10/100
Activity
10/100
Activity

BayStack 350-12T

BS35003A

Figure 1-3. LED Display Panel

Table 1-1. LED Descriptions

Label Type Color State Meaning

Pwr Power status Green On DC power is available to the switch’s internal circuitry.

Off No AC power to switch, or power supply failed.

(continued)

309979-A Rev 00

1-5

Using the BayStack 350 10/100/1000 Series Switch

Table 1-1. LED Descriptions (continued)

Label Type Color State Meaning

Status System status Green On Self-test passed successfully and switch is operational.

Blinking A nonfatal error occurred during the self-test.
Off The switch failed the self-te st.

10/100 10/100 Mb/s

port speed
indicator

Activity Port activity Green Blinking Indicates network activity for the corresponding port. A

Green On The corresponding port is set to operate at 100 Mb/s an d

the link is good.

Green Blinking The corresponding port has been disabled by software.
Amber O n The corresponding port is set to operate at 10 Mb/s and

the link is good.

Amber Blinking The corresponding port has been disabled by software.

Off The link connection is bad or there is no connection to

this port.

high level of network activity can cause the LEDs to
appear to be on continuously.

Back Panel

The BayStack 350 switch back-panel components are the same for both switch
versions (Figure 1-4
figure.

1 = AC power receptacle

Figure 1 -4. BayStack 350 Switch Back Panel

1-6

). Descriptions of the back panel components follow the

1

100-240V
47-63Hz~

BS35004A

309979-A Rev 00

228FA

BayStack 350 10/100/1000 Series Switches

AC Power Receptacle

The AC power receptacle accepts the AC power cord (supplied). For installation
outside of North Ameri ca, make sure that you h av e the p roper po wer c ord for you r
region. Any cord used must have a CEE-22 standard V female connector on one
end and must meet the IEC 320-030 specifications. Table 1-2

lists specifi ca ti ons

for international power cords.

Table 1-2. International Power Cord Specifications

Country/Plug description Specifications Typical plug

Continental Europe:

• CEE7 standard VII male plug

• Harmonized cord (HAR marking
on the outside of the cord jacket
to comply with the CENELEC
Harmonized Document HD-21)

U.S./Canada/Japan:

• NEMA5-15P male plug

• UL recognized (UL stamped
on cord jacket)

• CSA certified (CSA label
secured to the cord)

United Kingdom:

• BS1363 male plug with fuse

• Harmonized cord

Australia:

• AS3112-1981 Male plug

220 or 230 VAC
50 Hz
Single phase

100 or 120 VAC
50–60 Hz
Single phase

227FA

240 VAC
50 Hz
Single phase

229FA

240 VAC
50 Hz
Single phase

309979-A Rev 00

230FA

1-7

Using the BayStack 350 10/100/1000 Series Switch

Cooling Fans

The variable-speed cooling fans (not shown) are located on one side of the
BayStack 350 switch to provide cooling for the internal components. When you
install the switch, be sure to allow enough space on both sides of the switch for
adequate air flow.

Features

BayStack 350 switches provide wire-speed switching that allows
high-performance, low-cost connections to full-duplex and half-duplex
10/100/1000 Mb/s Ethernet local area networks (LANs).

BayStack 350 switches offer the following features:

• High-speed forwarding rate: Up to 3 million packets per second (peak)

• Store-and-forward sw itch: Full-pe rformance for warding at full line speed,
utilizing a 2.56 Gigabit/second switch fabric

• Learning rate: 3 million addresses per second (peak)

• Address database size: 16,000 entries at line rate (32,000 entries without
flooding)

1-8

• Spanning Tree Protocol (STP): Complies with IEEE 802.1D standard. STP
can be disabled on the entire switch or on a per-port basis.

• IEEE 802.1Q port-based virtual LANs (VLANs)

• IGMP snooping

• IEEE 802.1p prioritizing

• MultiLink Trunking, supporting:

-- Switch-to -switch trun ks

-- Switch-to -server trunks

• Port mirroring (conversation steering)

-- Port-based

-- MAC address-based

• Console/Comm port: Allows you to configure and manage the switch locally
or remotely.

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

• Virtual local area networks (VLANs), supporting :

-- IEEE 802.1Q port-based VLANs

-- Protocol-based VLANs

• SNMP agent support for the following management information bases
(MIBs):

-- SNMPv2 (RFC 1907)

-- Bridge MIB (RFC 1493)

-- Ethernet MIB (RFC 1643)

-- RMON MIB (RFC 1757)

-- MIB-II (RFC 1213)

-- Interface MIB (RFC 1573)

-- Nortel Networks proprietary MIBs:

- s5Chas MIB

- s5Agent MIB

309979-A Rev 00

- Rapid City MIB

• Rate limiting: Adjustable broadc ast or IP Multicast packet-rat e limits for
control of broadcast and IP Multicast storms

• TELNET:

-- Support for up to four simultaneous TELNET sessions

-- Optional password protection

-- Login time-out

-- Failed-logi n guard

-- Inactivity time-out

-- Allowed source addresses

-- Event logging

• Upgradeable device firmware in nonvolatile flash memory using the Trivial
File Transfer Protocol (TFTP)

• High-speed uplink/expansion slot: Allows you to attach optional media
dependent adapters (MDAs) that support a range of media types.

1-9

Using the BayStack 350 10/100/1000 Series Switch

• RADIUS network security: Allows you to set up your switch with
RADIUS-based (Remote Authentication Dial-In User Services) security, for
authenticating local console and TELNET logins.

• IEEE 802.3u-compliant autonegotiation ports, with four modes:

-- 10BASE-T half-duplex

-- 10BASE-T full-duplex

-- 100BASE-TX half-duplex

-- 100BASE-TX full-duplex

• Remote monitoring (RMON), with four groups integrated:

-- Statistics

-- History

-- Alarms

-- Events

• Front-panel light emitting diodes (LEDs) to monitor the following:

-- Power status

-- System status

-- Per-port status for the following:

- 1000 Mb/s link

- 100 Mb/s link

- 10 Mb/s link

- Half- and full-duplex transmission

- Tx/Rx activity

- Managemen t enable/disa ble

• Configuration file download/upload support: allows you to store your switch
configuration parameters on a TFTP server.

IEEE 802.1p Prioritizing

BayStack 350 swit ches can pr ioriti ze the ord er in which pack ets are forwar ded, on
a per-port basis. For more information about the 802.1p prioritizing feature, see

“

IEEE 802.1p Prioritizing” on page 1-42.

1-10

309979-A Rev 00

Virtual Local Area Networks (VLANs)

In a traditional shared-media network, traffic generated by a station is propagated
to all other stations on the local segment. Therefore, for any given station on the
shared Ethernet, the local segment is the collision domain because traffic on the
segment has the pote ntial to ca use an Ether net col lisi on. The local segment is also
the broadcast domain because any broadcast is sent to all stations on the local
segment. Although Ethernet switches and bridges divide a network into smaller
collision domains, they do not affect the broadcast domain. In simple terms, a
virtual local area network provides a mechanism to fine-tune broadcast domains.

Your BayStack 350 switch allows you to create two types of VLANs:

• Port-based VLANs
A port-based VLAN is a VLAN in which the ports are explicitly configured to

be in the VLAN. When you create a port-based VLAN, you assign a Port
VLAN Identifier (PVID) and specify which ports belong to the VLAN. The
PVID is used to coordinate VLANs across multiple switches.

• Protocol-based VLAN s

BayStack 350 10/100/1000 Series Switches

309979-A Rev 00

A Protocol-based VLAN is a VLAN in which you assign yo ur swit ch ports as
members of a broadcast domain , base d on the prot ocol in form ation wi thin t he
packet. Protocol-based VLANs can localize broadcast traffic and assure that
only the protocol-based VLAN ports are flooded with the specified protocol
packets.

BayStack 350 switches support up to 64 port-based or protocol-based VLANs.
When a switch port is configured to be a member of a VLAN, it is added to a
group of ports (workgroup) that belong to one broadcast domain. You can assign
different ports (and therefore the devices attached to these ports) to different
broadcast domains. This feature allows network flexibility because you can
reassign VLANs to accommodate network moves, additions, and changes,
eliminating the need to change physical cabling.

For more information about VLANs, see “

page 1-20

.

IEEE 802.1Q VLAN Workgroups” on

1-11

Using the BayStack 350 10/100/1000 Series Switch

RADIUS-Based Network Security

The RADIUS-based security feature allows you to set up network access control,
using the RADIUS (Remote Authentication Dial-In User Services) security
protocol. The RADIUS-based security feature uses the RADIUS protocol to
authenticate local console and TELNET logins.

You will need to set up specific user accounts (user names and passwords, and
Service-Type attributes) on your RADIUS server before the authentication
process can b e initiated.

To provide each user with appropriate levels of access to the switch, set the
following username attributes on your RADIUS server:

• Read-write access -- Set the Service-Type field value to Administrative.

• Read-only access -- Set the Service-Type field value to NAS-Prompt.

For detailed instructions about setting up your RADIUS server, refer to your
RADIUS server documentati on.

For instructions on using the console interface (CI) to set up the Radius-based
security feature, see “Console/Comm Port Configuration” on page 3-62.

MultiLink Trunking

The MultiLink Trunking feature allows you to group multiple ports (up to four)
together when forming a link to another switch or server, thus increasing
aggregate thr oughput of the interconnection bet w een two devices, up to 8 00 Mb/ s
in full-duplex mode. BayStack 350 switches can be configured with up to six
MultiLink Trunks.

For more information about the MultiLink Trunking feature, see “MultiLink

Trunks” on page 1-46.

IGMP Snooping Feature

For conserving bandwidth and controlling IP Multicast, the IGMP snooping
feature can provide the same benefit as IP Multicast routers, but in the local area.

For more infor mation about th e IGMP snooping fea ture, see “

page 1-37

1-12

.

IGMP Snooping” on

309979-A Rev 00

Port Mirroring

The port mirroring featu re (sometimes referred to as con ver satio n steeri ng) allows
you to designate a single switch port as a traffic monitor for up to two specified
ports or two media access control (MAC) addresses. You can specify port-based
monitoring, where all traffic on specified ports is monitored, or address-based
monitoring, where traffic between specified MAC addresses is monitored. You
can attach a probe de vice (such as a Nor tel Network s StackProbe, or equi v alent) to
the designated monitor port.

For more information about the port mirroring feature, see “Port Mirroring

(Conversation Steering)” on page 1-64.

Flash Memory Storage

Storage of Switch Software Image

The BayStack 350 switch uses flash memory to store the switch software image.
The flash memory allows you to update the software image with a newer version
without changing the switch hardware (see “Software Download” on page 3-80).
An in-band connection between the switch and the TFTP load host is required to
download the software image.

BayStack 350 10/100/1000 Series Switches

309979-A Rev 00

If a BootP server is set up properly on the network and the BayStack 350 switch
detects a corrupted software image during the self-test, the switch automatically
uses TFTP to download a new software image.

Storage of Configuration Parameters

Certain configuration parameters, including the system characteristics strings,
some VLAN para meters, IGMP configuration paramete rs, and the MultiLink
Trunk names are stored in flash memory. These parameters are updated every 10
minutes or whenever a reset command is executed.

Note:

Do not power off the switch within ten minutes of changing any
configuration parameters, unless you first reset the switch. Powering down the
switch within 10 minutes of changing configuration parameters (without
resetting) can cause the changed configuration parameters to be lost.

1-13

Using the BayStack 350 10/100/1000 Series Switch

SNMP MIB Support

The BayStack 350 switch supports an SNMP agent with industry standard MIBs,
as well as private MIB extensions, which ensures compatibility with existing
network management tools. The BayStack 350 switch supports the MIB-II
(RFC 1213), the Bridge MIB (RFC 1493), and the RMON MIB (RFC 1757),
which provide acce ss to detailed ma nagement statistics.

For a complete listing of supported MIBs, see “
For details on SNMP trap support, see “

SNMP Trap Support” following this

Features” on page 1-8.

section.

SNMP Trap Support

The BayStack 350 switch supports an SNMP agent with industry standard
SNMPv1 traps, as well as private SNMPv1 trap extensions (Table 1-3

Table 1-3. Supported SNMP Traps

Trap Name Configurable Sent when:

RFC 1215 (Industry Standard) :

linkUp Per port A port’s link state changes to up.
linkDown Per port A port’s link state changes to down.
authenticationFailure System wide There is an SNMP authentication failure.
coldStart Always on The system is powered on.
warmStart Always on The system restarts due to a management reset.

s5Ctr MIB (Nortel Networks Proprietary Traps):

s5CtrUnitUp Always on A unit is added to an operational stack.
s5CtrUnitDown Always on A unit is removed from an operational stack.
s5CtrHotSwap Always on A unit is hot-swapped in an operational stack.
s5CtrProblem Always on An assigned base unit fails.

).

1-14

309979-A Rev 00

BootP Automatic IP Configuration

The BayStack 350 switch has a unique 48-bit hardwar e a ddr ess , or MAC address,
that is printed on a label on the back panel. You use this MAC address when you
configure the network BootP server to recognize the BayStack 350 switch BootP
requests. A properly configured BootP server enables the switch to automatically
learn its assigned IP address, su bnet mask, IP ad dress of t he default router (d efaul t
gateway), and software image file name.

For an example of a BootP configuration file, see Appendix G, “Sample BootP
Configuration Fil e.”

Autosensing and Autonegotiation

BayStack 350 switches are autosensing and autonegotiating devices:

• The term autosense refers to a port’s ability to sense the speed of an attached

device.

• The term autone g oti at ion refers to a standa rdize d prot ocol (IEEE 802 .3u) t hat

exists between two IEEE 802.3u-capable devices. Autonegotiation allows the
BayStack 350 switch to select the best of both speed and duplex modes.

BayStack 350 10/100/1000 Series Switches

309979-A Rev 00

Autosensing is use d whe n t he a tt ached device is not capable of autonegot iat i on or
is using a form of autonegotiation that is not compatible with the IEEE 802.3u
autonegotiation standard. In this case, because it is not possible to sense the
duplex mode of the attached device, the BayStack 350 switch reverts to
half-duplex mode.

When autonegotiation-capable devices are attached to the BayStack 350 switch,
the switch ports negotiate down from 100 Mb/s speed and full-duplex mode until
the attached device acknowledges a supported speed and duplex mode.

For more information about autosensing and autonegotiation modes, see
“Autonegotiation Modes” on page 4-6.

1-15

Using the BayStack 350 10/100/1000 Series Switch

Configuration and Switch Management

The BayStack 350 switch is shipped directly from the factory ready to operate in
any 10BASE-T or 100BASE-TX standard network. You can manage the switch
using the Nortel Networks Optivity

®

Networks Device Manager Software, or any generic SNMP-based network
management software; however, you must assign an I P addr es s to the swit ch . You
can set the switch’s IP address by using the Cons ole/Comm Port or BootP, which
resides on the switch.

For more information about using the Console/Comm Port to configure the
switch, see Chapter 3, “Using the Console Interface.”

Network Configuration

You can use BayStack 350 switches to connect workstations, personal computers
(PCs), and serv ers to each other b y c onnecting these devices directly to the switch,
through a shared medi a hub that is conn ected to t he switch , or by creat ing a virt ual
LAN (VLAN) through the switch.

network management software, Nortel

1-16

This section provides three network configuration examples using BayStack 350
switches:

• Desktop switch application

• Segment switch application

• High-density switched workgroup application

Note:

All models of the BayStack 350 switch can be used interchangeably in
the following network configuration examples.

309979-A Rev 00

Desktop Switch Application

Figure 1-5 shows the BayStack 350-24T switch used as a desktop switch, where

desktop workstations are connected directly to switch ports.
This configuration provides dedicated 100 Mb/s connections to the network

center, to the server, and up to 26 users. This configuration uses the optional
400-4TX MDA (10BASE-T/100BASE-TX MDA).

Before After

10BASE-T hub

BayStack 350 10/100/1000 Series Switches

BayStack 350-24T switch

Server Up to 22 users

To

Network

Center

Key

10 Mb/s
100 Mb/s
200 Mb/s

- 22 users share 10 Mb/s (10/22 Mb/s per user)

- Server bottleneck (10 Mb/s bandwidth)

- Network center bottleneck (10 Mb/s bandwidth)

Network

- 26 users; each with dedicated 100 Mb/s bandwidth

- Server with dedicated 100 Mb/s bandwidth

- Network center with dedicated 100 Mb/s full-duplex
bandwith (200 mb/s bidirectional)

Server Up to 26 users

To

Center

Figure 1-5. BayStack 350-24T Used as a Desktop Switch

BS35005A

309979-A Rev 00

1-17

Using the BayStack 350 10/100/1000 Series Switch

Segment Switch Application

Figure 1-6 shows the BayStack 350-24T switch used as a segment switch to

alleviate user contention for bandwidth and eliminate server and network
bottlenecks. Befo re segmentation, 88 users had a total bandwidt h of only 10 Mb/s
available. After segmentation, 92 users have 40 Mb/s, four times the previous
bandwidth, while adding 22 dedicated 100 Mb/s connections. This configuration
can be extended to add more segments without degrading performance.

Before

10BASE-T hubs

Server

To

Network

Center

Key

10 Mb/s
100 Mb/s
200 Mb/s

- 88 users share 10 Mb/s (10/88 Mb/s per user)

- Server bottleneck (10 Mb/s bandwidth)

- Network center bottleneck (10 Mb/s bandwidth)

- Total of 88 users

Up to

88 users

After

BayStack 350-24T
switch

To

Network

Center

- Four sets of 23 users; each set shares 10 Mb/s
(10/23 Mb/s per user)

- Addition of 22 users; each with dedicated
100 Mb/s bandwidth

- Server with dedicated 100 Mb/s bandwidth

- Network center with dedicated 100 Mb/s full-duplex bandwidth
(200 Mb/s bidirectional)

- Total of 114 users

Server

Up to 22

users

Up to 23

users

Up to 23

users

Up to 23

users

Up to 23

users

Figure 1-6. BayStack 350-24T Used as a Segment Switch

1-18

BS35006A

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

High-Density Switched Workgroup Application

Figure 1-7 shows a BayStack 350-24T switch with a high-speed (gigabit)

connection to a Nortel Networks Accelar
switches are also shown in this example of a high-density switched workgroup.

™

1100 switch. BayStack 303 and 304

As shown in Figure 1-7
connecting to the BayStack 350 switch with an optional gigabit (1000BASE-SX)
MDA for maximum bandwidth. The BayStack 303 and 304 switches have 100
Mb/s connections to the BayStack 350 switch, a 100BASE-TX hub, and a 100
Mb/s server and 10 Mb/s connections to DTE (data terminal equipment).

See the Nortel Networks library Web page: support.baynetworks.com/library/ for
online documentation about the Nortel Networks Accelar 1100 switch and the
BayStack 303 and 304 switches.

BayStack 350-24T

switch

F

CPUPS1 PS2FAN

Accelar 1100 switch

Server

, the Accelar 1100 switch is used as a backbone switch,

BayStack 303
switch

F

100BASE-TX
hub

BayStack 304

Key

10 Mb/s
100 Mb/s
1000 Mb/s

(Gigabit)

switch

Figure 1-7. Configuring Power Workgroups and a Shared Media Hub

309979-A Rev 00

BS35007A

1-19

Using the BayStack 350 10/100/1000 Series Switch

IEEE 802.1Q VLAN Workgroups

BayStack 350 switches support up to 64 VLANs with 802.1Q tagging available
per port. Ports are grouped into broadcast domains by assigning them to the same
VLAN. Frames recei v ed in one VLAN can only be forwarded within that VLAN,
and IP Multicast frames and unknown unicast frames are flooded only to ports in
the same VLAN.

Setting up virtual LANs (VLANs) is a way to segment networks to increase
network capacity and performance without changing the physical network
topology (Figure 1-8
segment that i s a single broadcast domain. When a sw it ch port is configured to be
a member of a VLAN, it is added to a group of ports (workgroup) that belong to
one broadcast domain.

BayStack 350 switches allow you to assign ports to VLANs using the console,
TELNET, or any generic SNMP-based network management software. You can
assign different ports (and therefore the devices attached to these ports) to
different broadcast domains. This feature allows network flexibility because you
can reassign VLANs to accommodate network moves, additions, and changes,
eliminating the need to change physical cabling.

). With net wor k se gmentat ion, eac h switc h port con nects to a

1-20

VLAN 1 VLAN 2

BayStack 350-24T

switch

BS35009A

Figure 1-8. Port-Based VLAN Example

309979-A Rev 00

IEEE 802.1Q Tagging

BayStack 350 switches operate in accordance with the IEEE 802.1Q tagging
rules. Important terms used with the 802.1Q tagging feature are:

• VLAN identifier (VID) -- the 12-bit portion of the VLAN tag in the frame

header that identifies an explicit VLAN.

• Port VLAN identifier (PVID) -- a classification mechanism that associates a

port with a specific VLAN (see Figures 1-10

• Tagged frame -- the 32-bit field (VLAN tag) in the frame header that

identifies the frame as belonging to a specific VLAN. Untagged frames are
marked (tagged) wi th this class ific ation as the y lea ve th e switch throug h a port
that is configured as a tagged port.

• Untagged frame -- a frame that does not carry any VLAN tagging

information in the frame header.

• VLAN port members -- a set of ports that form a broadcast domain for a

specific VLAN. A port can be a member of one or more VLANs.

• Untagged member -- a port that has been configured as an untagged member

of a specific VLAN. When an untagged frame exits the switch through an
untagged member port, the frame header remains unchanged. When a tagged
frame exits the switch through an untagged member port, the tag is stripped
and the tagged frame is changed to an untagged frame.

BayStack 350 10/100/1000 Series Switches

to 1-15).

309979-A Rev 00

• Tagged member -- a port that has been configured as a member of a specific

VLAN. When an untagged frame exits the switch through a tagged member
port, the frame he ader is modi f ied to i nclude the 32-bi t ta g ass ociat ed wit h the
VLAN assigned to that frame. When a ta gged frame exit s the switch thr ough a
tagged member port, the frame header remains unchanged (original VID
remains).

• User_priority -- a three-bit field in the header of a tagged frame. The field is

interpreted as a binary number, therefore has a value of 0 to 7. This field
allows th e t agged frame to carry the use r-priority across bri dge d LANs where
the individual LAN segments may be unable to signal priority information.

• Port priority -- the pr iority level assigned to untagged frames received on a

port. This value be comes the user _priority for the frame. Tagged packets get
their user_priority from the value contained in the 802.1Q frame header.

• Unregistered packet -- a tagged frame that contains a VID where the receiving

port is not a member of that VLAN.

1-21

Using the BayStack 350 10/100/1000 Series Switch

• Filtering database identifier (FID) -- the specific filtering/forwarding database

within the BayStack 350 switch that is assigned to each VLAN. The current
version of software assigns all VLANs to the same FID. This is referred to as
Shared VLAN Learning in the IEEE 802.1Q specification.

The default configuration settings for BayStack 350 switches have all ports set as
untagged members of VLAN 1 with all ports configured as PVID = 1. Every
VLAN is assigned a unique VLAN identifier (VID) which distinguishes it from
all other VLANs. In the default configuration example shown in Figure 1-9
incoming packets are assigned to VLAN 1 by the default port VLAN identifier
(PVID =1). Untagged packets enter and leave the switch unchange d.

802.1Q switch

, all

VLAN 1

Port 1

PVID = 1

DA
SA

Incoming

untagged

packet

Key

By default:

Data

CRC

All ports are assigned PVID = 1
All ports are untagged members of VLAN 1

Port 2 Port 3 Port 4 Port 5

Figure 1-9. Default VLAN Settings

To configure VLANs, a user can reconfigure the switch ports as tagged or
untagged members of specific VLANs (see Figures 1-10

Outgoing

untagged packet

(unchanged)

Port 6 Port 7 Port 8

CRC

Data

SA
DA

BS35010A

to 1-15).

1-22

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

In Figure 1-10, untagged incoming packets are assigned directly to VLAN 2
(PVID = 2). Port 5 is configured as a tagged member of VLAN 2, and port 7 is
configured as an untagged member of VLAN 2.

PVID = 2

Untagged packet

Before

Port 1

DASADataCRC

Port 4

Port 6

Port 2 Port 3

802.1Q Switch

Port 7 Port 8

Figure 1-10. Port-Based VLAN Assignment

As shown in Figure 1-11, the untagged packet is marked (tagged) as it leaves the
switch through port 5, which is configured as a tagged member of VLAN 2. The
untagged packet remains unchanged as it leaves the switch through port 7, which
is configured as an untagged member of VLAN 2.

PVID = 2

Port 1

Port 4

Port 6 Port 7 Port 8

Port 2 Port 3

802.1Q Switch

Untagged member
of VLAN 2

Tagged member
of VLAN 2

Port 5

(*Recalculated)

Tagged member
of VLAN 2

Port 5

BS35011A

DASADataCRC* Tag

Untagged member

of VLAN 2

Outgoing

untagged packet

(unchanged)

CRC

Data

SA
DA

Key

Priority
CFI
VID

8100 CFI

16 bits 3 bits 1 bits 12 bits

After

- User_priority

- Canonical format indicator

- VLAN identifier

Figure 1-11. 802.1Q Tagging (After Port-Based VLAN Assignment)

309979-A Rev 00

VID = 2Priority

BS35012A

1-23

Using the BayStack 350 10/100/1000 Series Switch

In Figure 1-12, untagged incoming packets are assigned to VLAN 3 (IP Protocol
VLAN = 3, PVID = 2). Port 5 is configured as a tagged member of VLAN 3, and
port 7 is configured as an untagged member of VLAN 3.

IP Protocol VLAN = 3

PVID = 2

Untagged packet

DASADataCRC

Before

Port 1

Port 4

Port 6

Port 2 Port 3

802.1Q Switch

Port 7 Port 8

Figure 1-12. Protocol-Based VLAN Assignment

As shown in Figure 1-13, the untagged packet is marked (tagged) as it leaves the
switch through port 5, which is configured as a tagged member of VLAN 3. The
untagged packet remains unchanged as it leaves the switch through port 7, which
is configured as an untagged member of VLAN 3.

IP Protocol VLAN = 3

PVID = 2

Port 1

Port 4

Port 6 Port 7 Port 8

Port 2 Port 3

802.1Q Switch

Port 5

Untagged member
of VLAN 3

Tagged member
of VLAN 3

Port 5

(*Recalculated)

Tagged member
of VLAN 3

BS35011B

DASADataCRC* Tag

Untagged member

of VLAN 3

Outgoing

untagged packet

(unchanged)

CRC

Data

SA
DA

Key

Priority
CFI
VID

8100 CFI

16 bits 3 bits 1 bits 12 bits

- User_priority

- Canonical format indicator

- VLAN identifier

Figure 1-13. 802.1Q Tagging (After Protocol-Based VLAN Assignment)

1-24

VID = 3Priority

After

BS35012B

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

In Figure 1-14, tagged incoming packets are assi gned direc tly to VLAN 2 becaus e
of the tag as signment in the packet. P ort 5 is configured as a tagged me mber of
VLAN 2, and port 7 is configured as an untagged member of VLAN 2.

PVID = 2

Tagged packet

DASATagDataCRC

Before

Port 4

Figure 1-14. 802.1Q Tag Assignment

As shown in Figure 1-15, the tagged packet remains unchanged as it leaves the
switch through port 5, which is configured as a tagged member of VLAN 2.
However, the tagged packet is stripped (untagged) as it leaves the switch through
port 7, which is configured as an untagged member of VLAN 2.

PVID = 2

Port 1

Port 4

Port 6 Port 7 Port 8

Port 2 Port 3

802.1Q Switch

Port 1

Port 6

Port 5

Port 2 Port 3

802.1Q Switch

Port 7 Port 8

Tagged member
of VLAN 2

Port 5

Untagged member
of VLAN 2

DASADataCRC Tag

Tagged member
of VLAN 2

BS35013A

Untagged member

of VLAN 2

CRC*

Data

SA
DA

(*Recalculated)

Outgoing
untagged packet
changed
(tag removed)

Key

Priority
CFI
VID

8100 CFI

16 bits 3 bits 1 bit 12 bits

- User_priority

- Canonical format indicator

- VLAN identifier

Figure 1-15. 802.1Q Tagging (After 802.1Q Tag Assignment)

309979-A Rev 00

VID = 2Priority

After

BS35014A

1-25

Using the BayStack 350 10/100/1000 Series Switch

VLANs Spanning Multiple Switches

You can use VLANs to segment a network within a switch. When connecting
multiple switches, it is possible to connect users of one VLAN with users of that
same VLAN in another switch. However, the configuration guidelines depend on
whether both switches support 802.1Q tagging.

With 802. 1Q tagging enabled on a por t for a VLAN, all frames lea ving the port for
that VLAN are marked as belonging to that specific VLAN. Users can assign
specific switch ports as members of one or more VLANs that span multiple
switches, without interfering with the spanning tree protocol.

VLANs Spanning Multiple 802.1Q Tagged Switches

Figure 1-16

shows VLANs spanning t wo BaySta ck 350 sw itche s. 802.1Q taggi ng
is enabled on S1, port 2 and on S2, port 1 for VLAN 1 and VLAN 2. Both ports
are tagged members of VLAN 1 and VLAN 2.

VLAN 1

S1

Both ports are tagged
members of VLAN 1
and VLAN 2

S2

Figure 1-16. VLANs Spanning Multiple 802.1Q Ta gged Switches

VLAN 2

BayStack 350-24T

BayStack 350-24T

B35015A

1-26

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Because there is only one link between the two switches, the Spanning Tree
Protocol (STP) treats t his configuration as any other switch-to-switch connection.
For this configuration to work properly, both switches must support the 802.1Q
tagging protocol.

VLANs Spanning Multiple Untagged Switches

Figure 1-17

shows VLANs spanning multiple untagged switches. In this
configuration switch S2 does not support 802.1Q tagging and you must use a
single switch port on each switch for each VLAN.

For this configuration to work properly, you must set spanning tree participation
to Disabled (the STP is not supported across multiple LANs).

VLAN 1

S1

S2

VLAN 2

BayStack 350-24T

Untagged portsUntagged ports

Non-802.1Q
tagging switch

309979-A Rev 00

BS35016A

Figure 1-17. VLANs Spanning Multiple Untagged Switches

When the STP is enabled on these switches, only one link between each pair of
switches will be fo rwarding traff i c. Because each port belongs to onl y one VLAN
at a time, connectivity on the other VLAN is l ost . Exercise care when conf i gur in g
the switches to ensure that the VLAN configuration does not conflict with
spanning tree configuration.

1-27

Using the BayStack 350 10/100/1000 Series Switch

To connect multiple VLANs across switches with redundant links, the STP must
be disabled on all participating switch ports. Figure 1-18
consequences of enabling the STP when using VLANs between untagged
(non-802.1Q tagged) switches.

Station A

VLAN 1 VLAN 2

shows possible

Non-802.1Q
tagged switch

S1

No

Communications

Station B

Forwarding

VLAN 1 VLAN 2

Blocking

Non-802.1Q
tagged switch

S2

BS35017A

Figure 1-18. Possible Problems with VLANs and Spanning Tree Protocol

As shown in Figure 1-18, with STP enabled, only one connectio n betwe en S1 and
S2 is forwardi ng at a n y time. Communic ations f ailur e occur s bet ween VLAN 2 of
S1 and VLAN 2 of S2, blocking communications between Stations A and B.

The link connecting VLAN 1 on swit ches S1 and S2 is selected as the forw ar ding
link based on port speed, duplex mode, and port priority. Because the other link
connecting VLAN 2 is placed into Bl ocki ng mode, stations on VLAN 2 in switch
S1 cannot communicate with stations in VLAN 2 on switch S2. With multiple
links only one link will be forwarding.

1-28

309979-A Rev 00

Shared Servers

BayStack 350 switches allow ports to exist in multiple VLANs for shared
resources, such as servers, printers, and switch-to-switch connections. It is also
possible to have resources exist in multiple VLANs on one switch as shown in

Figure 1-19

In this example, clients on different broadcast domains share resources. The
broadcasts from ports configured in VLAN 3 can be seen by all VLAN port
members of VLAN 3.

BayStack 350 10/100/1000 Series Switches

.

BayStack 350-12T switch

S1

309979-A Rev 00

V2 V2 V1

Key

VLAN 1 (PVID=1)
VLAN 2 (PVID=2)
VLAN 3 (PVID=3)

V3

V1V2

BS35018A

Figure 1-19. Multiple VLANs Sharing Resources

In the above configuration,all of the switch ports are set to participate as VLAN
port members. This allows the switch to establish the appropriate broadcast
domains within the switch (see Figure 1-20

).

1-29

Using the BayStack 350 10/100/1000 Series Switch

S1

VLAN 2 VLAN 1

VLAN 3

Port 2

PVID = 2 PVID = 3

V2 V2 V2 V1 V2

Key

Port 4 Port 10 Port 8

VLAN 1 (PVID = 1)
VLAN 2 (PVID = 2)
VLAN 3 (PVID = 3)

Port 11Port 6

PVID = 1

V3

BS35019A

Figure 1-20. VLAN Broadcast Domains Within the Switch

For example, to create a broadcast domain for each VLAN shown in Figure 1-20,
configure ea ch VLAN with a port member ship , and e ach p ort with t he a ppropr iate
PVID/VLAN association:

• Ports 8, 6, and 11 are untagged members of VLAN 1.

The PVID/VLAN association for po rts 6 and 11 is: PVID = 1.

1-30

• Ports 2, 4, 10, and 8 are untagged members of VLAN 2.

The PVID/VLAN association for ports 2, 4, and 10 is: PVID = 2.

• Ports 2, 4, 10, 8, 6, and 11 are untagged members of VLAN 3.

The PVID/VLAN association for po rt 8 is: PVID = 3.

The following steps show how to use the VLAN configuration screens to
configure the VLAN 3 broadcast domain shown in Figure 1-20

.

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

To configure the VLAN port membership for VLAN 1:

1.

Select Switch Configuration from the BayStack 350-12T Main Menu (or
press w).

2.

From the Switch Configuration Menu, select VLAN Configuration (or
press v).

3.

From the VLAN Configuration Menu select VLAN Configuration (or
press v).

The default VLAN Configuration screen opens (Figure 1-21

VLAN Configuration

Create VLAN: [ 1 ] VLAN Type: [ Port-Based ]
Delete VLAN: [ ] Protocol Id (PID): [ None ]
VLAN Name: [ VLAN #1 ] User-Defined PID: [ 0x0000 ]
Management VLAN: [ Yes ] VLAN State: [ Active ]

Port Membership
1-6 7-12

------ ------

Unit #1 UUUUUU UUUUUU

KEY: T = Tagged Port Member, U = Untagged Port Member, - = Not a Member of VLAN
Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

):

Figure 1-21. Default VLAN Configuration Screen Example

The VLAN Configuration screen settings shown in Figure 1-21 are default
settings with all switch ports classified as untagged members of VLAN 1.

Figure 1-22

shows the VLAN Configuration screen after it is configured to
support the VLAN 3 broadcast domain shown in Figure 1-20
optional).

309979-A Rev 00

(VLAN Name is

1-31

Using the BayStack 350 10/100/1000 Series Switch

Ports 2, 4, 6, 8, 10, and 11 are now untagged members of VLAN 3 as shown in

Figure 1-20

VLAN Configuration

Create VLAN: [ 3 ] VLAN Type: [ Port-Based ]
Delete VLAN: [ ] Protocol Id (PID): [ None ]
VLAN Name: [ Mary's VLAN ] User-Defined PID: [ 0x0000 ]
Management VLAN: [ Yes ] VLAN State: [ Active ]

Port Membership
1-6 7-12

------ ------

Unit #1 -U-U-U -U-UU-

KEY: T = Tagged Port Member, U = Untagged Port Member, - = Not a Member of VLAN
Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

on page 1-30.

Figure 1-22. VLAN Configuration Screen Example

To configure the PVID (port VLAN iden tifier) for Port 8:

1.

From the VLAN Configuration screen, press [Ctrl]-R to return to the
VLAN Configuration Menu.

2.

From the VLAN Configuration Menu, select VLAN Port Configuration
(or press c).

The default VLAN Port Configuration screen opens (Figure 1-23

The VLAN Port Configuration screen settings shown in Figure 1-23
settings.

1-32

).

are default

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

VLAN Port Configuration

Port: [ 1 ]
Filter Tagged Frames: [ No ]
Filter Untagged Frames: [ No ]
Filter Unregistered Frames: [ No ]
Port Name: [ ]
PVID: [ 1 ]
Port Priority: [ 0 ]
Tagging: [Untagged Access]

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-23. Default VLAN P ort Configuration Screen Example

Figure 1-24 shows the VLAN Port Configuration screen after it is configured to

support the PVID assignment for port 8, as shown in Figure 1-20
optional).

The PVID/VLAN association for VLAN 3 is now PVID = 3.

309979-A Rev 00

(Port Name is

1-33

Using the BayStack 350 10/100/1000 Series Switch

VLAN Port Configuration

Port: [ 8 ]
Filter Tagged Frames: [ No ]
Filter Untagged Frames: [ No ]
Filter Unregistered Frames: [ No ]
Port Name: [ Molly's port ]
PVID: [ 3 ]
Port Priority: [ 0 ]
Tagging: [ Untagged Access ]

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-24. VLAN Port Configuration Screen Example

VLAN Workgroup Summary

This section summarizes the VLAN workgroup examples discussed in the
previous secti ons of this chapter.

As shown in Figure 1-25
multiple VLANs:

• Ports 1, 6, 11, and 12 are in VLAN 1.

• Ports 2, 3, 4, 7, and 10 are in VLAN 2.

• Port 8 is in VLAN 3.
Because S4 does not support 802.1Q tagging, a single switch port on each switch

must be used for each VLAN (see “VLANs Spanning Multiple Untagged

Switches” on page 1-27).

1-34

, switch S1 (a BayStack 350 switch) is configured with

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

The connection to S2 r equi res only one link between th e s wi t ches because S1 and
S2 are both BayStack 350 switches that support 802.1Q tagging (see “VLANs

Spanning Multiple 802.1Q Tagged Switches” on page 1-26).

Non-802.1Q
tagging switch

S4

Untagged ports

(STP disabled)

BayStack 350-12T

S1

V2 V2 V1

Key

VLAN 1 (PVID=1)
VLAN 2 (PVID=2)
VLAN 3 (PVID=3)

V3

BayStack 350-12T

S2

Both ports are tagged

members of VLAN 1

and VLAN 2

V1

V2

Non-802.1Q
tagging switch

S3

BS35020A

Figure 1-25. VLAN Configuration Spanning Multiple Switches

309979-A Rev 00

1-35

Using the BayStack 350 10/100/1000 Series Switch

VLAN Configuration Rules

VLANs operate according to specif ic conf igu ration rules. When crea ting VLANs,
consider the following rules that determine how the configured VLA N reacts in
any network topology:

• All ports that are involved in port mirroring must have memberships in the

same VLANs. If a port is configured for port mirroring, the port’s VLAN
membership cannot be changed.

• If a port is a trunk group member, all trunk members are added or deleted

from the VLA N.

• All ports involved in trunking and port mirroring must have the same VLAN

configuration. If a port is on a trunk with a mirroring port, the VLAN
configuration cannot be changed.

• VLANs are not dependent on rate limiting settings.

• If a port is an IGMP member on any VLAN, and is removed from a VLAN,

the port’s IGMP membership is also removed.

• If a port is added to a different VLAN, and it is already configured as a static

router port, the port is configured as an IGMP member on that specific
VLAN.

1-36

For more information about configuring VLANs, see “VLAN Configuration
Menu” on page 3-20.

See also Appendix D, “Quick Steps to Features” for configuration flo w c har ts tha t
can help you use this feature.

309979-A Rev 00

IGMP Snooping

BayStack 350 switches can sense IGMP host membership reports from attached
stations and use this info rmat ion t o set up a d edi cated path b etwe en th e reque stin g
station and a local IP Multicast rout er. After the pathway is established, the
BayStack 350 switch blocks the IP Multicast stream from exiting any other port
that does not connect to another host member, thus conserving bandwidth. The
following discussion describes how BayStack 350 switches provide the same
benefit as IP Multicast routers, but in the local area.

Internet Group Management Protocol (IGMP) is used by IP Multicast routers to
learn about the ex istence of host group members on their di rectly at tached subne ts
(see RFC 2236). The IP Multicast routers get this information by broadcasting
IGMP queries and listening for IP hosts reporting their host group memberships.
This process is used to set up a client/server relationship between an IP Multicast
source that provides the data streams and the clients that want to receive the data.

BayStack 350 10/100/1000 Series Switches

Figure 1-26

shows how IGMP is used to set up the path between the client and
server. As shown in this example, the IGMP host provides an IP Multicast stream
to designated routers which forward the IP Multicast stream on their local network
only if there is a recipient.

The client/server path is set up as follows:

1.

The designated router sends out a host membership query to the subnet and
receives host membership reports from end stations on the subnet.

2.

The designated routers then set up a path between the IP Multicast stream
source and the end stations.

3.

Periodically, the router continues to query end statio ns on whether to con tinue
participation.

4.

As long as any client continues to participate, all clients, including
nonparticipating end stations on that subnet, receive the IP Multicast stream.

Note:

Although the nonparticipating end stations can filter the IP Multicast

traffic, the IP Multicast still exists on t he subnet and consumes bandwidth.

IP Multicast can be optimized in a LAN by using IP Multicast filtering switches,
such as the BayStack 350 switch.

309979-A Rev 00

1-37

Using the BayStack 350 10/100/1000 Series Switch

As shown in Figure 1-26, a non-IP Multicast filtering switch causes IP Multicast
traffic to be sent to all segments on the local subnet.

Host

membership

IGMP

Host

query

Designated

router #1

Multicast stream

Internet

Non-IP Multicast

filtering switch

Host

membership

query

Designated
router #2

Host

membership

report

Non-IP Multicast

filtering switch

Figure 1-26. IP Multicast Propagation with IGMP Routing

The BayStack 350 switch can automatically set up IP Multicast filters so the IP
Multicast traffic is only directed to the participating end nodes (see Figure 1-27

In Figure 1 -27

, switches S1 to S4 represent a LAN connected to an IP Multicast
router. The router periodically sends Host Membership Queries to the LAN and
listens for a response from end stations. All of the clients connected to switches
S1 to S4 are aware of the queries from the router.

1-38

Host

membership

report

).

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

One client, connected to S2, responds with a host membership report. Switch S2
intercepts the report fro m that port, an d generates a proxy report to its upstream
neighbor, S1. Also, two clients connected to S4 respond with host membership
reports, causing S4 to intercept the reports and to generate a consolidated proxy
report to its upstream neighbor, S1.

Internet

Designated
router

Host

membership

report

Proxy

S1

S4

S2

Consolidated

report

Proxy

BayStack 350-24T

Switch

BayStack 350-24T
Switch

BayStack 350-24T

Switches

Host

membership

report

Host

membership

query

S3

Figure 1-27. BayStack 350-24T Filtering IP Multicast Streams (1 of 2)

BS35022B

309979-A Rev 00

Switch S1 treats the consolidated prox y reports fro m S2 and S4 as if they were
reports from any client connected to its ports, and generates a consolidated proxy
report to the designated router. In this way, the router receives a single
consolidated report from that entire subnet.

1-39

Using the BayStack 350 10/100/1000 Series Switch

After the switches learn which ports are requesting access to the IP Multicast
stream, all other ports no t responding to t he queries are block ed from recei ving the
IP Multicast (see Figure 1-28

Internet

S1

S2

BayStack 350-24T
Switch

).

Designated
router

BayStack 350-24T

Switches

Host

membership

query

S3

BayStack 350-24T

S4

Switch

Key

Multicast stream

BS35023B

Figure 1-28. BayStack 350-24T switches Filtering IP Multicast Stream (2 of 2)

The consolidated proxy report generated by the switch remains transparent to
layer 3 of the International Organization for Stan dardization, Open Systems
Interconnection (ISO/OSI) model. (The switch IP address and MAC address are
not part of proxy report generation.) The last reporting IGMP group member in
each VLAN represents all of the hosts in that VLAN and IGMP group.

1-40

309979-A Rev 00

IGMP Snooping Configuration Rules

The IGMP snooping feature operates according to specific configuration rules.
When configuring your switch for IGMP snooping, consider the following rules
that determine how the configuration reacts in any network topology:

• A port that is configured for port mirroring cannot be configured as a static

router port.

• If a MultiLink Trunk member is configured as a static router port, all of the

MultiLink Trunk members are configured as static router ports. Also, if a
static router port is removed, and it is a MultiLink Trunk member, all
MultiLink Trunk me mbers are removed as static router port m embers,
automatically.

• Static router ports must be port members of at least one VLAN.

• If a port is configured as a static router port, it is configured as a static router

port for all VLANs on that port. The IGMP configuration is propagated
through all VLANs of that port.

• If a static router port is removed, the membership for that port is removed

from all VLANs of that port.

BayStack 350 10/100/1000 Series Switches

309979-A Rev 00

• The IGMP snooping feature is not STP dependent.

• The IGMP snooping feature is not Rate Limiting dependent.

• The snooping field must be enabled for the Proxy field to have any valid

meaning.

• Static router ports are configured per VLAN and per IGMP Ve rsion.

Note:

Because IGMP snooping is set up per VLAN, all IGMP changes are

implemented according to the VLAN configuration for the specified ports.

For more information about using the IGMP snooping feature, see “IGMP
Configuration Menu” on page 3-52.

See also Appendix D, “Quick Steps to Features” for configuration flo wcharts that
can help you use this feature.

1-41

Using the BayStack 350 10/100/1000 Series Switch

IEEE 802.1p Prioritizing

You can use the VLAN Configuration screens to prioritize the order in which the
switch forwards packets, on a per-port basis. For example, if messages from a
specific segment are crucial to your operation, you can set the switch port
connected to that s egment to a hi gher prior ity le v el (b y def ault , all switc h ports ar e
set to Low priority). Untagged packets received by the switch on that port are
tagged according to the priority level you assign to the port ( see Figure 1-29

Before

).

CRC

Data

SA
DA

PVID = 2

Priority = 6

Port 1

802.1Q Switch

Port 4

Port 6 Port 7 Port 8

Untagged member

of VLAN 2

Outgoing

untagged packet

(unchanged)

Port configuration
parameters

Port 2 Port 3

transmit

CRC

Data

SA
DA

Figure 1-29. Prioritizing P ackets

Port 5

queue

High

Low

Tagged member
of VLAN 2 (Port 5)

Port 5

(*Recalculated)

Key

Priority
CFI
VID

DASADataCRC* Tag

8100 CFI

16 bits 3 bits 1 bit 12 bits

After

- User_priority

- Canonical format indicator

- VLAN identifier

VID = 2Priority = 6

BS35024A

1-42

The newly tagged f rame is read wit hin the switch a nd sent to the port’s high or low
transmit queue for disposition (see Figure 1-30
shown in Figure 1-30

applies to all ports on the BayStack 350 switch.

). The port transmit queue example

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Port 5

User priority

(6)

Port

transmit

queue

Traffic

class
7
6

High

5
4

3
2

Low

1
0

High priority

packet

BS35025A

Figure 1 -30. Port Transmit Queue

As shown in Figure 1-30, the switch provides two transmission queues, High and
Low, for any gi ven po rt. Frames a re assi gned to one of these q ueues on th e basis of

user_priority using a traf fic class table. This tabl e is managed b y using the Traff ic
Class Configuration screen (Figure 1-31

). The table indicates the corresponding
traffic class that is assigned to the frame, for each possible user_priority value. If
the frame lea v es t he switc h format ted as a tagg ed pack et, t he traffic class assign ed
to the frame is carried forward to the next 802.1p capable switch. This allows the
packet to carry the assigned traffic class pr iority through the network until it
reaches its destination.

309979-A Rev 00

The following steps show how to use the Traffic Class Configuration screen to
configure the port priority level shown in the example Figure 1-29

.

For more information about using the Traffic Class Configuration screen, see
“Traffic Class Configuration” on page 3-32.

1-43

Using the BayStack 350 10/100/1000 Series Switch

To configure the port priority level, follow these steps:

1.

Determine the priorit y level you want to assign to the switch port.

User priority le v els are a ssigned def ault se ttin gs in all BaySt ack 350 switch es.
The range is from 0 to 7. The traffic class table can be modified. Therefore,
view the settings shown in the Traffic Class Configuration screen before
setting the port priority in the VLAN Port Configuration screen.

2.

Select Switch Configuration from the BayStack 350-12T Main Menu (or
press w).

3.

From the Switch Configuration Menu, select VLAN Configuration (or
press v).

4.

From the VLAN Configuration Menu, select Traffic Class Configuration
(or press t).

The Traffic Class Configuration screen opens (Figure 1-31

Traffic Class Configuration

User Priority Traffic Class

------------- ------------­ Priority 0: [ Low ]
Priority 1: [ Low ]
Priority 2: [ Low ]
Priority 3: [ Low ]
Priority 4: [ Low ]
Priority 5: [ Low ]
Priority 6: [ Low ]
Priority 7: [ Low ]

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

).

Figure 1-31. Default Traffic Class Configuration Screen Example

1-44

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

5.

Select a priority level from the range shown in the Traffic Class
Configuration scr een (or modify the Traffic Class paramet ers to sui t y our
needs).

6.

Assign the priority level to ports using the VLAN Port Configuration
screen:

a.

Press [Ctrl]-R to return to the VLAN Configuration Menu.

b.

From the VLAN Configuration Menu, select VLAN Port
Configuration (or press c).

The VLAN Port Configuration screen opens (Figure 1-32

Figure 1-32
Figure 1-29

VLAN Port Configuration

Port: [ 4 ]
Filter Tagged Frames: [ No ]
Filter Untagged Frames: [ No ]
Filter Unregistered Frames: [ No ]
Port Name: [ Luke’s port ]
PVID: [ 2 ]
Port Priority: [ 6 ]

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

shows the VLAN Port Configuration screen setup for port 4 in
on page 1-42.

).

Figure 1-32. Setting Port Priority Example

For more informat ion abou t using this fe ature, s ee “VLAN Po rt Conf igurati on” on
page 3-28.

309979-A Rev 00

1-45

Using the BayStack 350 10/100/1000 Series Switch

MultiLink Trunks

MultiLink Trunks allow you to group up to four switch ports together to form a
link to another switch or server, thus increasing aggregate throughput of the
interconnection between the devices (up to 800 Mb/s in full-duplex mode). You
can configure up to six MultiLink Trunks. MultiLink Trunking software detects
misconfigured ( or brok en) tru nk links a nd redirect s traf f ic on the misconf i gured or
broken trunk link to other trunk members within that trunk.

You can use the Trunk Configuration screen to create switch-to-switch and
switch-to-server MultiLink Trunk links (see Figure 1-33

and Figure 1-34).

Figure 1-33

and S3.

S2

shows two trunks (T1 and T2) connecting switch S1 to switches S2

S1

F

F

S3

T1

T2

BS35026A

1-46

Figure 1-33. Switch-to-Switc h Trunk Configuration Example

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Each of the trunks shown in Figure 1-33 can be conf i gur ed with up to four switch
ports to provide up to 800 Mb/s aggregate bandwidth through each trunk, in
full-duplex mode. As shown in this example, when traffic between
switch-to-switch connections approaches single port bandwidth limitations,
creating a MultiLink Trunk can supply the additional bandwidth required to
improve the performance.

Figure 1-34

shows a typical swi tch-t o-ser v er tru nk conf i gurati on. In thi s e xample,
file server FS1 uses dual MAC addresses, using one MAC address for each
network interface controller (NIC). For this reason, FS1 does not require a trunk
assignment. FS2 is a single MAC server (with a four-port NIC) and is set up as
trunk configuration T1.

FS1

S1

FS2

T1

BS35027A

Figure 1-34. Switch-to-Server Trunk Configuration Example

Client/Server Configuration Using MultiLink Trunks

Figure 1-35 shows an example of how MultiLink Trunking can be used in a

client/serv e r c onfiguration. In this example, both servers are connected directl y t o
switch S1. FS2 is connected through a trunk configuration (T1). The
switch-to-switch connections are through trunks (T2, T3, T4, and T5).

309979-A Rev 00

1-47

Using the BayStack 350 10/100/1000 Series Switch

A

Clients accessing data from the servers (FS1 and FS2) are provided with
maximized bandwidth through trunks T1, T2, T3, T4, and T5. Trunk members
(the ports making up each trunk) do not have to be consecutive switch ports; you
can select ports randomly, as shown by T5.

With spanning tree enabled, one of the trunks (T2 or T3) acts as a redundant
(backup) trunk to switch S2. With spanning tree disabled, you must configure
trunks T2 and T3 into separ at e VLANs f or t his configuration to func ti on properly
(see “IEEE 802.1Q VLAN Workgroups

” on page 1-20).

FS1

S1

F

F

T2

T3 T4

S2

S3

Figure 1-35. Client/Server Configuration Example

S4

FS2

T1

T5

BS35028

1-48

The trunk configuration screens for switches S1 to S4 are shown in “Trunk

Configuration Scr een Exampl es” following th is section. For de tailed informa tion

about configuring trunks, see “MultiLink Trunk Configuration” on page 3-39.

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Trunk Configuration Screen Examples

This section sho ws e xamples of the Mult iLink Trunk configura tion scre ens for th e
client/server configuration example shown in Figure 1-35
screens show how you could set up the trunk configuration screens for switches
S1 to S4. See “Spanning Tree Considerations for MultiLink Trunks

page 1-60

information.

Trunk Configuration Screen for Switch S1

Switch S1 is set up with five trunk configurations: T1, T2, T3, T4, and T5.

Setting up the Trunk Configuration for S1:

To set up the trunk configuration, choose MultiLink Trunk Configuration
(or press t) from the MultiLink Trunk Configuration Menu screen (Figure 1-36

MultiLink Trunk Configuration Menu

, and “MultiLink Trunk Configuration” on page 3-39 for more

on page 1-48. The

” on

).

MultiLink Trunk Configuration...
MultiLink Trunk Utilization...
Return to Switch Configuration Menu

Use arrow keys to highlight option, press <Return> or <Enter> to select option.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-36. Choosing the MultiLink Trunk Configuration Screen

309979-A Rev 00

1-49

Using the BayStack 350 10/100/1000 Series Switch

The MultiLink Trunk Configuration screen opens (Figure 1-37).

MultiLink Trunk Configuration
Trunk Trunk Members STP Learning Trunk Mode Trunk Status

----- ---------------------------- ------------ --------------- -----------­ 1 [ 15 ][ 17 ][ 19 ][ 21 ] [ Normal ] Basic [ Enabled ]
2 [ 25 ][ 26 ][ ][ ] [ Normal ] Basic [ Enabled ]
3 [ 2 ][ 4 ][ ][ ] [ Normal ] Basic [ Enabled ]
4 [ 14 ][ 16 ][ ][ ] [ Normal ] Basic [ Enabled ]
5 [ 22 ][ 24 ][ ][ ] [ Fast ] Basic [ Enabled ]
6 [ ][ ][ ][ ] [ Disabled ] Basic [ Disabled ]

Trunk Trunk Name

----- ------------------­ 1 [ S1:T1 to FS2 ]
2 [ S1:T2 to S2 ]
3 [ S1:T3 to S2 ]
4 [ S1:T4 to S3 ]
5 [ S1:T5 to S4 ]
6 [ Trunk #6 ]

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-37. MultiLink Trunk Configuration Screen for Switch S1

Switch S1 is configured as follows:

• Trunk (read only) indicates the trunks (1 to 6) that correspond to the switch

ports specified in the Trunk Members fields.

• Trunk Members indicates the ports that can be configured, in each row, to

create the corresponding trunk:

-- Ports 15, 17, 19, and 21 are assigned as trunk members of trunk 1.

-- Ports 25 and 26 are assigned as trunk members of trunk 2.

-- Ports 2 and 4 are assigned as trunk members of trunk 3.

-- Ports 14 and 16 are assigned as trunk members of trunk 4.

-- Ports 22 and 24 are assigned as trunk members of trunk 5.

1-50

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

• STP Lear ning indica tes the spanni ng tr ee parti cipat ion s ettin g f or ea ch of the

trunks:

-- Trunks 1 through 4 are enabled for Normal STP Learning.

-- Trunk 5 is enabled for Fast STP Learning.

• Trunk Mode (read only) indicates the trunk mode for each of the trunks:

The Trunk Mode field values for trunks 1 to 5 are set to Basic. Source MAC
addresses are statically assigned to specific trunk members for flooding and
forwarding. This allows the switch to stabilize and distribute the data streams
of source addresses across the trunk members.

• Trunk Status indicates the trunk status for each of the trunks. When set to

Enabled, the configuration settings for th at specific trunk are activated.

• Trunk Name indicates optional fields for assigning names to the

corresponding conf igured trunks.
The names chosen for this example pr ovide meaning ful information to the

user of this switch ( for e xample, S1: T1 to FS2 ind icates th at trunk 1, in switch
S1, connects to file server 2).

309979-A Rev 00

1-51

Using the BayStack 350 10/100/1000 Series Switch

Trunk Configuration Screen for Switch S2

As shown in Figure 1-35

on page 1-48, switch S2 is set up with two trunk

configurations (T2 and T3). Both trunks connect directly to switch S1.
As in the previous screen examples, to set up a trunk configuration choose

MultiLink Trunk Configuration from the MultiLink Trunk Configuration Menu
screen.

Figure 1-38

MultiLink Trunk Configuration
Trunk Trunk Members STP Learning Trunk Mode Trunk Status

----- ---------------------------- ------------ --------------- -----------­ 1 [ 25 ][ 26 ][ ][ ] [ Normal ] Basic [ Enabled ]
2 [ 1 ][ 3 ][ ][ ] [ Normal ] Basic [ Enabled ]
3 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
4 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
5 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
6 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]

Trunk Trunk Name

----- -----------------­ 1 [ S2:T2 to S1 ]
2 [ S2:T3 to S1 ]
3 [ Trunk #3 ]
4 [ Trunk #4 ]
5 [ Trunk #5 ]
6 [ Trunk #6 ]

shows the MultiLink Trunk Configuration screen for switch S2.

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-38. MultiLink Trunk Configuration Screen for Switch S2

Switch S2 is configured as follows:

• Trunk (read only) indicates the trunks (1 to 6) that corresponds to the switch

ports specified in the Trunk Members fields.

1-52

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

• Trunk Members indicates the ports that can be configured, in each row, to

create the corresponding trunk:

-- Ports 25 and 26 are assigned as trunk members of trunk 1.

-- Ports 1 and 3 are assigned as trunk members of trunk 2.

• STP Lear ning indica tes the spanni ng tr ee parti cipat ion s ettin g f or ea ch of the

trunks:
Trunks 1 and 2 are enabled for Normal STP Learning.

• Trunk Mode (read only) indicates the trunk mode for each of the trunks:

The Trun k Mode field values f or tr unks 1 and 2 are set to Basic. Sourc e MAC
addresses are statically assigned to specific trunk members for flooding and
forwarding. This allows the switch to stabilize and distribute the data streams
of source addresses across the trunk members.

• Trunk Status indicates the trunk status for each of the trunks. When set to

Enabled, the configuration settings for th at specific trunk are activated.

• Trunk Name indicates optional fields for assigning names to the

corresponding conf igured trunks.

309979-A Rev 00

The names chosen for this example pr ovide meaning ful information to the
user of this switch (for example, S2:T2 to S1 indicates that trunk 1, in switch
S2, connects to switch 1).

1-53

Using the BayStack 350 10/100/1000 Series Switch

Trunk Configuration Screen for Switch S3

As shown in Figure 1-35

on page 1-48, switch S3 is set up with one trunk

configuration (T4). This trunk connects directly to switch S1.
As in the previous screen examples, to set up an inter-switch trunk configuration

choose MultiLink Trunk Configuration from the MultiLink Trunk Configuration
Menu screen.

Figure 1-39

MultiLink Trunk Configuration
Trunk Trunk Members STP Learning Trunk Mode Trunk Status

----- ---------------------------- ------------ --------------- -----------­ 1 [ 1 ][ 3 ][ ][ ] [ Normal ] Basic [ Enabled ]
2 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
3 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
4 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
5 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
6 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]

Trunk Trunk Name

----- -----------------­ 1 [ S3:T4 to S1 ]
2 [ Trunk #2 ]
3 [ Trunk #3 ]
4 [ Trunk #4 ]
5 [ Trunk #5 ]
6 [ Trunk #6 ]

shows the MultiLink Trunk Configuration screen for switch S3.

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-39. MultiLink Trunk Configuration Screen for Switch S3

Switch S3 is configured as follows:

• Trunk (read only) indicates the trunks (1 to 6) that correspond to the switch

ports specified in the Trunk Members fields.

• Trunk Members indicates the ports that can be configured, in each row, to

create the corresponding trunk:
Ports 1 and 3 are assigned as trunk members of trunk 1.

1-54

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

• STP Lear ning indica tes the spanni ng tr ee parti cipat ion s ettin g f or ea ch of the

trunks:
Trunk 1 is enabled for Normal STP Learning.

• Trunk Mode (read only) indicates the trunk mode for each of the trunks:

The Trun k Mode f ield value for trunk 1 is set to Bas ic. Source MA C add resses
are statically ass ig ned to sp ecific trunk members for floodi ng an d forw ar ding.
This allows the switch to stabilize and distribute the data streams of source
addresses across the trunk members.

• Trunk Status indicates the trunk status for each of the trunks. When set to

Enabled, the configuration settings for th at specific trunk are activated.

• Trunk Name indicates optional fields for assigning names to the

corresponding conf igured trunks.
The names chosen for this example pr ovide meaning ful information to the

user of this switch (for example, S3:T4 to S1 indicates that trunk 1, in switch
S3, connects to switch 1).

309979-A Rev 00

1-55

Using the BayStack 350 10/100/1000 Series Switch

Trunk Configuration Screen for Switch S4

As shown in Figure 1-35

, switch S4 is set up with one trunk configuration (T5).

This trunk connects directly to switch S1.
As in the previous screen examples, to set up a trunk configuration choose

MultiLink Trunk Configuration from the MultiLink Trunk Configuration Menu
screen.

Figure 1-40

MultiLink Trunk Configuration
Trunk Trunk Members STP Learning Trunk Mode Trunk Status

----- ---------------------------- ------------ --------------- -----------­ 1 [ 5 ][ 11 ][ ][ ] [ Normal ] Basic [ Enabled ]
2 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
3 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
4 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
5 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]
6 [ ][ ][ ][ ] [ Normal ] Basic [ Disabled ]

Trunk Trunk Name

----- ------------------­ 1 [ S4:T5 to S1 ]
2 [ Trunk #2 ]
3 [ Trunk #3 ]
4 [ Trunk #4 ]
5 [ Trunk #5 ]
6 [ Trunk #6 ]

shows the MultiLink Trunk Configuration screen for switch S4.

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-40. MultiLink Trunk Configuration Screen for Switch S4

1-56

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Switch S4 is configured as follows:

• Trunk (read only) indicates the trunk (1 to 6) that corresponds to the switch

ports specified in the Trunk Members fields.

• Trunk Members indicates the ports that can be configured, in each row, to

create the corresponding trunk:
Ports 5 and 11 are assigned as trunk members of trunk T1.

• STP Lear ning indica tes the spa nning tree par ticipat ion settin g for each of the

trunks:
Trunk 1 is enabled for Normal STP Learning.

• Trunk Mode (read only) indicates the Trunk Mode for each of the trunks:

The Trun k Mode f ield value for trunk 1 is set to Bas ic. Source MA C add resses
are statically ass ig ned to sp ecific trunk members for floodi ng an d forw ar ding.
This allows the switch to stabilize and distribute the data streams of source
addresses across the trunk members.

• Trunk Status indicates the Trunk Status for each of the tr unks. When it is set

to Enabled, the configuration settings for that specific tru nk are activated.

309979-A Rev 00

• Trunk Name indicates optional fields for assigning names to the

corresponding conf igured trunks.
The names chosen for this example pr ovide meaning ful information to the

user (for example, S4:T5 to S1 indicates that Trunk 1, in switch S4, connects
to Switch 1).

1-57

Using the BayStack 350 10/100/1000 Series Switch

Before Configuring Trunks

When you create and enable a trunk, the trunk members (switch ports) take on
certain settings necessary for correct operation of the MultiLink Trunking feature.

Before configu ring your Mul tiLink Trunk, you must consider these sett ings, alo ng
with specific configuration rules, as follows:

Before configuring any MultiLink Trunk:

1.

Read the configuration rules provided in the next section, “MultiLink

Trunking Configuration Rules.”

2.

Determine which switch ports (up to four) are to become
(the specific ports making up the trunk):

• A minimum of two ports are required for each trunk.

• Ensure that the chosen switch ports are set to Enabled, using the Port
Configuration screen (see “Port Configuration” on page 3-34) or through
network management.

• Trunk member ports must be in the same VLAN.

3.

All network cabli ng should be comp lete and stabl e bef ore conf igur ing any
trunks, to avoid configuration errors.

4.

Consider how the existing spanning tree will react to the new trunk
configuration (se e “Spanning Tree Considerations f or MultiLink Trunks
on page 1-60

5.

Consider how existing VLANs will be affected by the addition of a trunk.

6.

After completing the above steps, see “MultiLink Trunk Configuration”

).

on page 3-39 for screen examples and f iel d descri ptions that will help you
configure your MultiLink Trunks.

MultiLink Trunking Configuration Rules

trunk members

”

1-58

The MultiLink Trunking feature is deterministic; that is, it operates according to
specific configuration rules. When creating trunks, consider the following rules
that determine how the MultiLink Trunk reacts in any network topology:

• An y por t that part icipate s in Mult iLink T run king must be an acti v e port (se t to
Enabled via the Port Configuration screen or through network management).

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

• Al l t r unk members must be configured into the same VLAN before the Trunk
Configuration screen’s Trunk Status field can be set to Enabled (See “VLAN
Configuration Menu” on page 3-20).

• W hen an a cti v e port is co nfi gured in a t runk, th e port becomes a trunk member
when you set the Trunk Status field to Enabled. The spanning tree paramet er s
for the port then change to reflect the new trunk settings.

• I f you change the sp anning t ree part icip ation of an y tru nk member to Enabled
or Disabled, the spanning tree participation of all members of that trunk
changes similarly (s ee “Spanning Tree Considerations for MultiLink Trunks
on page 1-60

).

”

• When a trunk is enabled, the trunk spanning tree participation setting takes
precedence over that of any trunk member. When a trunk is active, you can
change the trunk STP setting from either the Trunk Configuration screen or
the Spanning Tree Configuration screen.

• I f y ou change the VLAN settings of an y t ru nk membe r, the VLAN settings of
all members of that trunk change similarly.

• When you set any trunk member to Disabled (not active) through the Port
Configuration screen or through network management, the trunk member is
removed from the trunk. The removed trunk member has to be reconfigured
through the Trunk Configuration screen to rejoin the trunk. A screen prompt
precedes this action. You cannot disable a trunk member if there are only two
trunk members on the trunk.

309979-A Rev 00

• You cannot configure a trunk member as a monitor port (see “Port Mirroring
Configuration” on page 3-45).

• Trunks cannot be monitored by a monitor port; however, trunk members can
be monitored (see “Port-Based Mirroring Configuration

” on page 1-65).

• All trunk members must have identical IGMP snooping configurations.

• If you change the IGMP snooping configuration for any trunk member, the
IGMP snooping settings for all trunk members change.

1-59

Using the BayStack 350 10/100/1000 Series Switch

Spanning Tree Considerations for MultiLink Trunks

The spanning tree Path Cost parameter is recalculated based on the aggregate
bandwidth of the trunk. For example, Figure 1-41
with two port members operating at 100 Mb/s and two at 10 Mb/s. Trunk T1
provides an aggregate bandwidth of 220 Mb/s. The Path Cost for T1 is 4 (Path
Cost = 1000/LAN speed, in Mb/s). Another three-port trunk (T2) is configured
with an aggregate bandwidth of 210 Mb/s, with a comparable Path Cost of 4.
When the Path Cost calculations for both trunks are equal, the software chooses
the trunk with the lar ge r aggregate bandwidth (T1) to dete rmin e the mos t ef ficient
path.

S1

shows a four-port trunk (T1)

100 Mb/s

Path Cost T1 = 4

Aggregate Bandwidth

100 Mb/s

10 Mb/s
10 Mb/s

T1 T2

220 Mb/s

S2

Figure 1-41. P ath Cost Arbitration Example

1-60

100 Mb/s
100 Mb/s

10 Mb/s

Aggregate Bandwidth

210 Mb/s

Path Cost T2 = 4

BS35029A

309979-A Rev 00

The switch can also detect trunk member ports that are physically misconfigured.
For example, in Figure 1-42
configured correctly to trunk member ports 7, 9, and 11 of switch S2. The
Spanning T ree Port Conf iguration s creen for each switch sh o ws the por t state fiel d
for each port in the Forwarding state.

S1 Port Configuration screen

BayStack 350 10/100/1000 Series Switches

, trunk member ports 2, 4, and 6 of switch S1 are

S1

T1

S2

S2 Port Configuration screen

Figure 1-42. Example 1: Correctly Configured Trunk

309979-A Rev 00

BS35030A

1-61

Using the BayStack 350 10/100/1000 Series Switch

If switch S2’s trunk member port 11 is physically disconnected and then
reconnected to port 13, t he Spanning Tree Port Config uration sc reen for s witch S1
changes to show port 6 in the Blocking state (Figure 1 -43

).

S1 Port Configuration screen

S2

S1

T1

[Blocking]

S2 Port Configuration screen

Figure 1-43. Example 2: Detecting a Misconfigured Port

1-62

BS35031A

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Additional Tips About the MultiLink Trunking Feature

When you create a MultiLink Trunk, the individual trunk members (the specific
ports that make up the trunk) logically connect and react as a single entity. For
example, if you change spanning tree parameters for any trunk member, the
spanning tree parameters for all trunk members change.

All configured trunks are indicated in the Spanning Tree Configuration screen.
The screen’s Trunk field lists the active trunks, adjacent to the port numbers that
correspond to the specific trunk member for that trunk.

When a trunk is active you can di sable spann ing tre e part icip ation us ing t he Trunk
Configuration screen or using the Spanning Tree Configuration screen.

When a trunk is not active, the spanning tree participation setting in the Trunk
Configuration screen does not take effect until the Trunk Status field is set to
Enabled.

The trunk is also viewed by management stations as a single spanning tree port.
The spanning tree port is represented by the trunk member with the lowest port
number. For example, if ports 13, 14, 15, and 16 are trunk members of trunk T1,
the management station views trunk T1 as spanning tree port 13.

309979-A Rev 00

For more informat ion about using t he Mult iLink T r unking fe ature, s ee “Multi Link
Trunk Configuration” on page 3-39.

See also Appendix D, “Quick Steps to Features,” for conf igur ation flo wch arts tha t
can help you use this feature.

1-63

Using the BayStack 350 10/100/1000 Series Switch

Port Mirroring (Conversation Steering)

You can designate one of your switch por ts to moni tor t raffic on an y two spe cif i ed
switch ports (port-based) or to monitor traffic to or from any two specified
addresses that the switch has learned (address-based).

Note:

A probe device, such as the Nortel Networks StackProbe™ or
equiv alent, must be c onnected to the designated moni tor port to use th is feature
(contact your Nortel Networks sales agent for details about the StackProbe).

The following sections provide example configurations for both monitoring
modes available with the port mirroring feature:

• Port-based mirroring

• Address-based mirroring
A sample Port Mirroring Configuration screen accompanies each network

configuration example. Note that the displayed screens do not show all of the
screen prompts that precede some actions.

For example , when yo u conf ig ure a swit ch for port mirr oring or when you modi fy
an existing port mirroring configuration, the new configuration does not take
effect until you respond [Yes] to the following screen prompt:

1-64

Is your port mirroring configurat ion complete? [ Yes ]

309979-A Rev 00

Port-Based Mirroring Configuration

Figure 1-44 shows an example of a port -b ased mir rori ng conf i gurat ion where por t

23 is designated as the monitor port for ports 24 and 25 of switch S1. Although
this example shows ports 24 and 25 monitored by the monitor port (port 23), any
of the trunk members of T1 and T2 can also be monitored.

Note:

Trunks cannot be monitored and trunk members cannot be configured
as monitor ports (see “

page 1-58

).

MultiLink Trunking Configuration Rules” on

BayStack 350 10/100/1000 Series Switches

Figure 1-45

S2

shows the Port Mirror ing Configuration screen set up for th is e xampl e.

Port X

(port 25)

F

StackProbe

S1

T 1

F

T2

S3

Monitor port

(port 23)

Port Y

(port 24)

BS35032A

309979-A Rev 00

Figure 1-44. Port-Based Mirroring Configuration Example

1-65

Using the BayStack 350 10/100/1000 Series Switch

In the configuration example shown in Figure 1-44 on page 1-65, the designated
monitor port (port 23) can be set to monitor traffic in any of the following modes:

• Monitor all traffic received by port X.

• Monitor all traffic transmitted by port X.

• Monitor all traffic received and transmitted by port X.

• Monitor all traffic received by port X or transmitted by port Y.

• Monitor all traffic received by port X (destined to port Y) and then
transmitte d by port Y.

• Monitor all traffic received/transmitted by port X and received/transmitted
by port Y (conversations between port X and port Y).

As shown in the Port Mirroring Configuration screen example (Figure 1-45

), a

user has designated port 23 as the Monitor Port for ports 24 and 25 in switch S1.
The Monitoring Mode field [ - > Port X or Port Y - > ] indicates that all traffic

receiv ed b y port X or all traffic transmitted by port Y is currently being monitored
by the StackProbe attached to Monitor Port 23.

The screen data displayed at the bottom of the screen shows the currently active
port mirroring configuration.

1-66

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

Port Mirroring Configuration

Monitoring Mode: [ -> Port X or Port Y -> ]
Monitor Port: [ 23 ]

Port X: [ 25 ]
Port Y: [ 24 ]

Address A: [ 00-00-00-00-00-00 ]
Address B: [ 00-00-00-00-00-00 ]

Port mirroring configuration has taken effect.
Currently Active Port Mirroring Configuration

--------------------------------------------­Monitoring Mode: -> Port X or Port Y -> Monitor Port: 23
Port X: 25 Port Y: 24

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-45. Port Mirroring Port-Based Screen Example

Address-Based Mirroring Configuration

Figure 1-46 shows an exampl e of a n addr ess-ba sed mir roring c onf ig urati on where

port 23, the designated monitor port for switch S1, is monitoring traffic occurring
between address A and address B.

309979-A Rev 00

1-67

Using the BayStack 350 10/100/1000 Series Switch

Address A

S2

StackProbe

S1

F

F

S3

T1

T2

Monitor port

Address B

Figure 1-46. Address-Based Mirroring Configuration Example

(port 23)

BS35033A

1-68

In this configuration, the designated monitor port (port 23) can be set to monitor
traffic in any of the following modes:

• Monitor all traffic transmitted from address A to any address.

• Monitor all traffic received by address A from any address.

• Monitor all traffic received by or transmitted by address A.

• Monitor all traffic transmitted by address A to address B.

• Monitor all traffic between address A and address B (conversation between
the two statio ns).

Figure 1-47

shows the Port Mirror ing Configuration screen set up for th is e xampl e.

309979-A Rev 00

BayStack 350 10/100/1000 Series Switches

In this example, port 23 becomes the desi gnat ed Mo nit or Por t for s wi t ch S 1 whe n
you press [Enter] in response to the [Yes] screen prompt.

Note:

The screen data displayed at the bottom of the screen changes to show

the new currently active port mirroring configuration after you press Return.

The Monitoring Mode f i eld [ Ad dre ss A - > Addres s B ] i ndicat es tha t all traffic
transmitted by address A to address B will be monitored by the StackProbe
attached to Monitor Port 23.

Note:

When you enter MAC addresses in this screen, they are also displayed

in the MAC Address Table screen (see “MAC Address Table” on page 3-18).

Port Mirroring Configuration

Monitoring Mode: [ Address A -> Address B ]
Monitor Port: [ 23 ]

Port X: [ ]
Port Y: [ ]

Address A: [ 00-44-55-44-55-22 ]
Address B: [ 00-33-44-33-22-44 ]

Is your Port mirroring configuration complete? [ Yes ]

Currently Active Port Mirroring Configuration

--------------------------------------------­Monitoring Mode: Address A <-> Address B Monitor Port: 23
Address A: 00-11-22-33-44-55 Address B: 22-33-44-55-66-77

Use space bar to display choices, press <Return> or <Enter> to select choice.
Press Ctrl-R to return to previous menu. Press Ctrl-C to return to Main Menu.

Figure 1-47. Port Mirroring Address-Based Screen Example

309979-A Rev 00

1-69

Using the BayStack 350 10/100/1000 Series Switch

Port Mirroring Configuration Rules

The following configuration rules apply to any port mirroring configuration:

• You cannot configure a monitor port as a trunk member or IGMP member.

• A monitor port cannot be used for normal switch functions.

• When you configure a port as a monitor port, the port is automatically
disabled from participating in the spanning tree. When you reconfigure the
port as a standard switch port (no longer a monitor port), the port is enabled
for spanning tree participation.

• When you create a port-based port mirroring configuration, be sure that the
monitor port and both of the mirrored ports, port X and port Y, have the same
configuration. Use the VLAN Configuration screen to configure the VLAN
(see “VLAN Configuration Menu” on page 3-20).

• VLAN configuration settings for any ports configured for port-based
mirroring cannot be changed. Use the Port Mirroring Configuration screen to
disable port mirroring (or reconfigure the port mirroring ports), then change
the VLAN configuration settings.

• For port-based monitoring of traffic, use one of the following modes for
monitoring broadcast, IP Multicast, or unknown DA frames:

1-70

-- Monitor all traffic received by port X.

-- Monitor all traffic transmitted by port X.

-- Monitor all traffic received and transmitted by port X.

For more information about using the port mirroring feature, see “Port Mirroring
Configuration” on page 3-45.

See also Appendix D, “Quick Steps to Features” for configuration flo w c har ts tha t
can help you use this feature.

309979-A Rev 00

Chapter 2

Installing the BayStack 350 Switch

This chapter covers the following topics:

• Installation requirements

• Installation procedure

• Instructions for connecting power

• Instructions for verifying the installation

• Instructions for the initial switch setup

Refer to Chapter 3, “Using the Console Interface,” to further configure your
BayStack 350 switch.

Installation Requirements

Before installing the BayStack 350 switch, verify that the package contains the
items shown in Figure 2-1

Note:

Be sure that the supplied AC power cord matches the requirements for

your region; see “AC Power Receptacle” on page 1-7.

Install the BayStack 350 swit ch in a ventil ated area that is dust free and a way from
heat vents, warm air exhaust from other equipment, and direct sunlight. Avoid
proximity to large electric motors or other electromagnetic equipment. When
choosing a location, observe the environmental guidelines listed in Appendix A,
“Technical Specifications.” You will need a Phillips screwdriver for the
installation.

309979-A Rev 00

.

2-1

Using the BayStack 350 10/100/1000 Series Switch

Installation hardware:

Mounting

brackets

and screws

Rubber

footpads

AC

power cord

Figure 2-1. Package Contents

Note:

Your shipping box may be configured differently than shown in the

above example; the contents will be the same.

Documentation:

BayStack 350 switch

Using the BayStack 350
10/100/100 Series Switch

Owner registration card

Customer registration card

Release notes

BS35034B

2-2

The number of box es and their contents depends o n the opt ions you ordered. Open
any accessories box and verify that the contents agree with your bill of materials.
If any items are missing or damaged, contact the sales agent or the customer
service representative from whom you purchased the BayStack 350 switch.

309979-A Rev 00

Installing the BayStack 350 Switc h

Installation Procedure

This section provides the requirements and instructions for installing the
BayStack 350 switch on a flat surface or in a standard 19-inch utility rack. If you
install the switch in a rack, ground the rack to the same grounding electrode used
by the po wer ser vice in the area . The ground path must be permanent and must not
exceed 1 ohm of resistance from the rack to the grounding electrode.

Note:

An optional wall mount kit is available for the BayStack 350 switch
(Order Number A12018003). See your Nortel Networks sales representative
for ordering informat ion. Installation instructions are provided with the wall
mount kit.

Installing the BayStack 350 Switch on a Flat Surface

Caution:

weight of the port cables increases with the height of the shelf or tabletop.

Achtung:

Regalboden installiert wird, erhöht sich das Gesamtgewicht der
Schnittstellenkabel mit der Höhe des Regalbodens oder Tisches.

Attention:

que le poids du câblage réseau augmente avec la hauteur de l'installation.

Precaución:

una mesa, el peso acumulado de los cables de los puertos aumenta según la
altura del estante o de la mesa.

Attenzione:

un tavolo, il peso dei cavi connessi alle porte aumenta in proporzione
all'altezza del ripiano o del tavolo.

When this device is installed on a shelf or tabletop, the accumulated

Wenn dieses Gerät in einem Stapel auf einem Tisch oder einem

Si l'appareil est posé dans un rack ou sur une étagère, notez bien

Cuando este disposit ivo se instala api la do en un estante o sobre

Quando il dispositivo viene installat o in stack su un ripiano o su

309979-A Rev 00

2-3

Using the BayStack 350 10/100/1000 Series Switch

The BayStack 350 switch can be mounted onto any appropriate flat, level surface
that can safely support the weight of a switch and its attached cables, as long as
there is adequate space around the unit for ventilation and access to cable
connectors.

To install the switch on a tabletop, shelf, or any other flat surface, follow these
steps:

1.

Set the switch on the flat surface and check for proper ventilation.

Allow at least 2 inches (5.1 cm) on each side for proper ventilation and
5 inches (12.7 cm) at the back for power cord clearance.

2.

Attach rubber feet to each marked location on the bottom of the chassis.

The rubber feet are optional but recommended to keep the unit from slipping.

3.

Attach all devices to the ports.

See “Attaching Devices to the BayStack 350 Switch

Installing the BayStack 350 Switch in a Rack

Caution:

top of one another in the rack. Each unit must be secured to the rack with
appropriate mounting brac ket s. Mounting brack ets ar e not desig ned to suppo rt
multiple units.

Achtung:

Sie die Geräte nicht direkt aufeinander. Jedes Gerät muß mit entsprechenden
Halterungen im Gestell befestigt werden. Die Halterungen sind nicht dafür
konzipiert, mehrere Geräte zu tragen.

Attention:

directement plusieurs unités les unes sur les autres. Chaque unité doit être
correctement fixée avec les membrures appropriées. Les membrures ne sont
pas conçues pour supporter le poids d'unités multiples.

2-4

When mounting this device in a rack, do not stack units directly on

Wenn Sie dieses Gerät in einem Gerätegestell installieren, stellen

Si cet appareil doit être e ncastré dans un rack, ne jamais empiler

” on page 2-7.

309979-A Rev 00

Installing the BayStack 350 Switc h

Precaución:

Al montar este dispositivo apilado con otros dispositivos, no
apile las unidades dir ectamente unas sobre otras. Cada unid ad se debe f ija r a la
estructura mediante los soportes de montaje adecuados. Los soportes de
montaje no están diseñados para soportar varias unidades.

Attenzione:

Se il dispositivo viene installato su una cremagliera, non
impilarlo su un altro dispositivo montato sulla cremagliera. Ciascuna unità
deve essere fissata alla cremagliera con le apposite staffe di montaggio. Tali
staffe non possono essere utilizzate per fissare più unità.

The BayStack 350 switch occupies a 1.6-unit (1.6u) rack space and can be
installed in most standard 19-inch racks. Ground the rack to the same grounding
electrode used by the power service in the area. The permanent ground path must
not exceed 1 ohm of resistance from the rack to the grounding electrode.

309979-A Rev 00

To install the BayStack 350 switch in a rack, follow these steps:

1.

Determine how far you want the switch to protrude in front of the rack
(see Figure2-2

1 = Flush with rack
2 = Extended from rack

Figure 2-2. Positioning the Chassis in the Rack

).

1

2

BS35035A

2-5

Using the BayStack 350 10/100/1000 Series Switch

You can install the switch flush to the rack or extended from th e rack,
depending on the orientation of the mounting brackets.

2.

Using a Phillips screwdriver, attach a mounting bracket to each side of
the switch using the supplied screws (Figure 2-3

1

1 = Flush with rack
2 = Extended from rack

).

2

BS35036A

2-6

Figure 2-3. Attaching Mounting Brackets

3.

Position the swit ch in the rack a nd align the h oles in the moun ting
bracket with the holes in the rack (see Figure 2-4

).

BS35037A

Figure 2-4. Installing the BayStack 350 Switch in an Equipment Rack

309979-A Rev 00