Cabletron Systems ELS100-24TXG Configuring VLANs

9032947 Configuring & Monitoring The Switch 59

To configure Spanning Tree Parameters, do the following:

1. Select Switch Configuration Menu from the Main Menu.

2. Select Spanning Tree Configuration Menu.

3. Turn the switch Spanning Tree operation on or off by toggling the

Spanning Tree Protocol Enable option by pressing a.

4. Change the main Spanning Tree op erati onal param eter s as desir ed.

The parameters on this screen affect the operat ion of Span ning Tree

on the switch as a whole .

5. Select Port Configuration.

The Spanning Tree Port Configuration Menu displays. Change the

parameters that display in this menu as required.

Configuring VLANs

A virtual LAN (VLAN) is a group of network devi c es on one or more

network segments c onfigured such that they can communica te as if they

are on the same LAN. VLANs are based on logical instead of physical

connections and so enable greater flexibility in network design.

The most fundamental benefit of VLANs is the ability to create

workgroups of users based on function r ather tha n on physic al locati on or

media. For further i n formation, see Appe ndix D, “Virtual LAN s (VLANs).”

To configure VLANs, do the following:

1. Select Switch Configuration Menu from the Main Menu.

2. Select VLAN Configuration Menu.

3. Turn the global switch VLAN o peration on or o ff by t oggling t he VLAN

Enable option by pressing a.

4. Select VLAN Menu.

The VLAN Menu displays. This menu di spl a y s the current configura-

tion of VLANs in the system.

5. To delete a current VLAN, select Delete, then enter the n umber of the

VLAN.

6. To configure a VLAN, select Configure and enter a VLAN n umber. A

new VLAN can be created this way.

The VLAN #n Configur ation Menu displays. From this menu, you can

configure VLAN names, add/dele te ports in a VLAN, and add/delete

egress ports for a VLAN.

7. From the main VLAN Configuration Menu, select VLAN Port Menu to

configure the VLAN port mode (hybrid or acces s) for indi vidua l ports .

Configuring Spanning Tree parameters from their de-

fault can cause serious deterioration of network per-

formance.

Contents

Main NOTICE FCC NOTICE DOC NOTICE VCCI NOTICE CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT CABLETRON SOFTWARE PROGRAM LICENSE EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY UNITED STATES GOVERNMENT RESTRICTED RIGHTS SAFETY INFORMATION LASER RADIATION AND CONNECTORS DECLARATION OF CONFORMITY Page TABLE OF CONTENTS Page Page Page PREFACE Purpose Audience Conventions Other Conventions Organization Page Page 1. PRODUCT OVERVIEW Description Features Front Panel 4 Product Overview ELS100-24TXG Figure 1-3. Port LEDs Default Configuration Figure 1-4. Port LEDs LED Mode Button Pressed The numbers above and below the port LEDs identify the LEDs associated with a specific RJ-45 port. Link LEDs Activity LEDs Rear Panel Feature Summaries IEEE 802.1D Bridge Spanning Tree Protocol Frame Buffering and Frame Latency Software Download Non-volatile Parameter Storage Configuration and Management Interfac es RMON Port Mirroring Auto-negotiation Broadcast Throttling BootP/DHCP LEDs Full Duplex Mode Flow Control Application Examples Client/Server Network Application Local Backbone Application 2. INSTALLATION Inspecting Your Shipment Site Requirements Page Mounting the Switch on a Wall Mounting the Switch in a Rack Connecting a Terminal to the Console Port Powering the Switch Power-Up Network Cable Requirements Copper Fiber 10Base-T/100Base-TX Ports 1000Base-X Gigabit Ethernet Ports Page 3. ELS100-24TXG USER INTERFACE Overview User Access Factory Defaults 26 ELS100-24TXG User Interface ELS100-24TXG Menu Hierarchy Figure 3-2 shows the ELS100-24TXG switch user interface menu hierarchy. Figure 3-2. ELS100-2 4 TXG User Interface M enu Hierarchy Main Menu Figure 3-3. Main Menu System Configuration Menu Figure 3-4. System Configuration Menu SNMP Configuration Menu Figure 3-5. SNMP Configuration Menu Switch Configuration Menu Figure 3-6. Switch Configuration Menu Forwarding Table Configuration Menu Forwarding Table Configuration Menu (continued) Spanning Tree Configuration Menu Spanning Tree Configuration Menu (continued) Spanning Tree Port Configuration Menu Figure 3-9. Spanning Tree Port Configuration Menu Spanning Tree Port #n Configuration Menu VLAN Configuration Menu VLAN Menu VLAN #n Configuration Menu VLAN Port Menu Figure 3-14. VLAN Port Configuration Menu Class of Service Configuration Menu Port Priority Menu Figure 3-16. Port Priority Configuration Menu Port Menu Figure 3-17. Port Menu Port Configuration Menu Figure 3-18. Port Configuration Menu Switch Statistics Screen Figure 3-19. Switch Statistics Screen Switch Summary Screen Port Statistics Screen Figure 3-21 Port Statistics Screen (continued) General Information Screen Download Software Menu Save Current Configuration To save your current config uration, do the following: Return to Default Configuration Logout Reset 4. CONFIGURING & MONITORING THE SWITCH Common Tasks Setting Password Protection Assigning an IP Address Checking Network Configuration Status Connecting via Telnet Setting SNMP Management Access Viewing Switch Statistics Configuring Port Mirroring Downloading a Software Upgrade Downloading Via the Serial Port Downloading Via TFTP Configuring Spanning Tree Parameters Configuring VLANs Configuring Class of Service Configuring Port Operation Configuring the Forwarding Table Page Configuring Broadcast Cutoff Rate Setting a Default Gateway Configuring BootP/DHCP Page 5. SNMP MANAGEMENT The SNMP Protocol MIB Objects RFC 1213 (MIB-II) Page Table 5-2. Switch Information Variables continued on next page Table 5-2 Switch Information Variables (continued) Compiling MIB Extensions: Cabletron Website http://www.cabletron.com APPENDIX A. TECHNICAL SPECIFICATIONS General Standards Compliance Certification Data Rate Page Port Specifications Console Port 10Base-T and 100Base-TX Ports Power Cord Set Requirements Country-Specific Requirements Note 1 Page APPENDIX B. SPANNING TREE CONCEPTS General Spanning Tree Features Spanning Tree Protocol in a Network Spanning Tree Protocol Parameters Table B-1. Spanning Tree Protocol Defaults Spanning Tree Protocol Operation Page APPENDIX C. FLOW CONTROL Page APPENDIX D. VIRTUAL LANS (VLANS) VLANs and Frame Tagging ELS100-24TXG VLAN Configuration VLAN ID Ports in VLAN VLAN Egress Ports VLAN Access Ports VLAN Hybrid Ports VLAN Application Example APPENDIX E. CLASS OF SERVICE Page APPENDIX F. ACRONYMS & ABBREVIATIONS Page INDEX A B C D H I L M N T U V W