62 Configuring & Monitoring the Switch ELS100-24TXMConfiguring VLANsA virtual LAN (VLAN) is a group of devices on one or more LANs that areconfigured such that they can communicate as if they were attached tothe same wire. Because VLANs are based on logical instead of physicalconnections, they are extremely flexible.The most fundamental benefit of VLAN technology is the ability to createworkgroups based on function rather than on physical location or media.For further information, see Appendix D, “Virtual LANs (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 operation on or off by toggling the VLANEnable option by pressing a.4. Select VLAN Menu.The VLAN Menu displays. This menu displays the current configura-tion of VLANs in the system.5. To delete a current VLAN, select Delete, then enter the number of theVLAN.6. To configure a VLAN, select Configure and enter a VLAN number. Anew VLAN can be created this way.The VLAN #n Configuration Menu displays. From this menu, you canconfigure VLAN names, add/delete ports in a VLAN, and add/deleteegress ports for a VLAN.7. From the main VLAN Configuration Menu, select VLAN Port Menu toconfigure the VLAN port mode (hybrid or access) for individual ports.Configuring Class of ServiceYou can configure Class of Service parameters using the Class of ServiceConfiguration Menu. This menu permits you to configure priority levels totraffic being forwarded through the switch. During periods of congestion,Class of Service settings ensure that traffic which has been assigned highpriority is forwarded through the switch ahead of normal priority traffic. Forfurther information, see Appendix E, “Class of Service.”