3Com 1000 - page 78

5-4 CHAPTER 5: ADVANCED MANAGEMENT

AutoSelect VLAN Mode works as follows:

1When an endstation is connected to a Switch or

moves from one port to another, the Switch learns

the MAC address of the endstation.

Figure5-2 Switch learns the endstation’s MAC address

2If the relevant port uses AutoSelect VLAN Mode, the

Switch interrogates the VLAN Server to determine

the VLAN membership of the endstation.

Figure5-3 Switch interrogates the VLAN Server

3Having obtained the VLAN membership for the end-

station, the Switch places the relevant port in the

specified VLAN.

Figure5-4 Switch places the port in the VLAN

AutoSelect VLAN Mode has an advantage over Port

VLAN Mode because once the VLAN Server data-

base is set up correctly, you can move endstations to

other ports or other Switch units and the VLAN allo-

cation of each endstation is automatically config-

ured.

If you use AutoSelect VLAN Mode, note the follow-

ing:

■You need to specify an IP address and community

string for the VLAN Server.

■You cannot use VLAN 15.

■If a port has been configured as a backbone

port or as a VLT port, the port cannot use

AutoSelect VLAN Mode.

■If a port has a permanent address stored against

it in the Switch Database, the port cannot use

AutoSelect VLAN Mode.

■We recommend that you connect each switch

port to a single endstation. If you want to con-

nect a port to multiple endstations, specify that

the port uses Port VLAN Mode.

Contents

Main 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 C A BOUT T HIS G 1 2 3 4 5 6 A B C D E F ABOUT THIS GUIDE Introduction How to Use This Guide Conventions Related Documentation 1 About the Switch 1000 Summary of Features Port Connections Switch Operation and Features Page Page Switch 1000 on Your Network Server Connections Network Configuration Examples Page Network Segmentation II Page Page 10BASE-T Ports 100BASE-TX Port LEDs Page Page Unit Defaults Managing the Switch 1000 Quick Start For SNMP Users Entering an IP Address for the Switch Page I S Configuration Rules for Fast Ethernet Configuration Rules with Full Duplex Page Installing the Switch 1000 Rack Mounting Stacking the Switch and Other Units Wall Mounting Powering-up the Swi tch Connecting a Redundant Power System (RPS) Connecting Equipmen t to the Console Port Connecting a VT100 Terminal Connecting a VT100 Terminal Emulator Connecting a Workstation Running SLIP 3 Methods of Managing the Switch 1000 Using the VT100 Management Interface Using Telnet Managing Over Th e Network IP Addresses Page 3-4 CHAPTER 3: SETTING UP FOR MANAGEMENT Navigating the VT100 Screens Screen Conventions To differentiate types of information, the VT100 screens use the following conventions: Keyboard Shortcuts Correcting Text Entry Setting Up the Switch for Management Logging On Page Switch Management Setup Page Page Logging Off Auto Logout M S T 1000 Setting Up Users Creating a New User Deleting a User Editing User Details Assigning Local Security Choosing a Switch Management Level Page Setting Up the Switch Unit Page Page Setting Up the Switch Ports Page Page Page Setting Up the Switch Database (SDB) The Database View Searching the Switch Database Adding an Entry into the SDB Deleting an Entry from the SDB Specifying that an Entry is Permanent Setting Up Resilient Links Configuring Resilient Links Creating a Resilient Link Pair Deleting a Resilient Link Viewing the Resilient Setup Page Setting Up Traps Setting Up the Console Port Page Resetting the Switch Initializing the Switch Upgrading Software Page 5 Virtual LANs (VLANs) What are VLANs? Benefits of VLANs An Example VLANs and the Switch Connecting VL ANs to a Router Page VLAN Configurati ons Page Page Setting Up VLANs on the Switch Page Page Setting Up VLANs Using Auto Select VLAN Mode Spanning Tree Protocol What is STP? Page How STP Works Page STP Configurations Enabling STP on the Switch Configuring STP on the Switch Page Page Page RMON What is RMON? About the RMON Groups Page Benefits of RMON RMON and the Switch RMON Features of the Switch Page 5-28 CHAPTER 5: ADVANCED MANAGEMENT About Alarm Actions About Default Alarm Settings About the Audit Log Page 6 Summary Statistics Port Statistics Port Traffic Statistics Page Port Error Analysis Page Status Monitoring Fault Log Remote Polling A Important Safety Information Page Power Supply and Fuse Sockets for Redundant Power System (RPS) RJ45 Ports Fiber Ports Linformation de Scurit Importante La Source de Courant et Le Fusible Socle Pour Alimentation Multiple Les Ports RJ45 Les Ports Fibre Wichtige Sicherheit sinformationen Stromversorgung und Sicherung Steckdose fr Redundant Power System (RPS) RJ45 Anschluen Glasfaser Anschluen B B-2 APPENDIX B: SCREEN ACCESS RIGHTS C - N I T Using the VT100 Interface Using the Switch Page Page Page Page Page E Physical Dimensions E-2 APPENDIX E: SWITCH 1000 TECHNICAL SPECIFICATIONS F Online Technical Services World Wide Web Site 3Com Bulletin Board Service 3ComFacts Automated Fax Service 3ComForum on CompuServe Online Service Support from Your Network Supplier Support from 3Com F-4 APPENDIX F: TECHNICAL SUPPORT Returning Products for Repair Regional Sales Office Telephone Number 44 1442 438125 44 1442 435822 Elsewhere 1 408 326 7804 1 408 764 7120 G Page Page Page Page Page I Numerics A B C D E F H I K L M Q R S T U V W Z 3Com Corporation LIMITED WARRANTY H S S TANDARD W W ARRANTIES E ELECTRO-MAGNETIC COMPATIBILITY FCC S VCCI S CSA S INFORMATION T