D-Link DES-5024 manual Vlan Port Management

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Fast Ethernet Switching System User’s Guide

VLAN Port Management

A Virtual Local Area Network (VLAN) is a logical subgroup within a LAN that is created with software rather than physical connections. The purpose of a VLAN is to prevent broadcast storms and ease congestion on your network.

Each VLAN created is a broadcast domain. A broadcast is a packet that is sent to all nodes on the network. A broadcast domain is a domain in which every node in the domain receives the broadcast packet. The advantage of creating VLANs is that they permit you to group LAN segments together in order to get the most out of your network.

VLANs become more important as the network grows and traffic increases. VLANs are usually used on high traffic networks. You should consider a VLAN on a smaller network if a department or workgroup routinely does tasks that take up a lot of bandwidth and they are not already on their own LAN segment.

VLANs can be used to subdivide the network. The DES-5024 supports port based VLAN. Port based VLAN means that the VLAN is grouped by port. If a VLAN is created using three ports, then those ports become a separate broadcast domain.

By using VLANs, members of a particular department or workgroup can be partitioned from the rest of the network. For example, the marketing department can be on one VLAN and the accounting department can be on another. If a workstation in marketing sends a broadcast packet to another workstation in marketing the packet will remain in the marketing VLAN.

Managing the DES-5024

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Contents DES-5024 Fast Ethernet Switching System User’s Guide Link Limited Warranty Hardware North, Central, and South America Copyright Statement Wichtige Sicherheitshinweise Table of Contents Page Page Organization About This GuideAudience Features IntroductionPage Front Panel DES-5024 Front PanelRear Panel DES-5024 Rear PanelLocal Console Management Management MethodsUpdating Firmware Telnet ManagementInstalling the DES-5024 Unpacking the DES-5024Installation Options Desktop/ Shelf Installation Install Feet on BottomAttach Feet Rack Installation Attach Mounting Brackets Insert into Rack Installing Modules Remove Blank Bracket Insert Optional Module Power On Copper Cable Connecting the DES-5024 to the NetworkCable Specifications Cable Diagram Fiber Optic Cable Fiber Optic Ports PortsMDI-X Ports RS-232 PortConnecting the DES-5024 to other Switches and Hubs DES-5024 to DES-5024 ConnectionLEDs DES-5024 LEDsPower CPU ModuleLED Port 10/100-TX Module LinkPort 100BASE-FX Module ColLit Dark Port 1000BASE-SX Module ActManaging the DES-5024 Local Console Management ∙ Data bits ∙ Parity None ∙ Stop bits ∙ Flow Control NoneTelnet ∙ Default User Name D-Link ∙ Default Password D-Link LogHelp Message Help MessagePanel Conventions SpacebarUser Account Management System ConfigurationConsole Program Snmp Management Configuration 100BASE-FX/ 1000BASE-SX Switch Port ModuleSpanning Tree Configuration Vlan Port ManagementFactory Reset to Default Config Values System Configuration MenuSystem Reset System InformationSystem Information Menu Software UpdateBoot Prom Firmware Version Hardware RevisionSystem Description LAN Default GatewayMAC Address System NameSystem Reset System ResetFactory Reset Factory ResetFactory Reset confirmation Disadvantages of Store and Forward System Rate ControlAdvantages of Store and Forward Advantages of Cut-Through Disadvantages of Cut-ThroughSoftware Update Menu Software Update menuTransfer Firmware Xmodem User Account Management User Account Change MenuAccess Level PasswordConfirm Password Create New UserPage Delete Delete UsersStatus Page New Password Change PasswordOld Password Page Switch Port Configuration Physical Switch Port Configuration MenuState Flow Control Port StatePriority STA Operation Levels Spanning Tree ConfigurationSpanning Tree Configuration Menu Bridge Priority Forward Delay TimeSpanning Tree Algorithm Root CostRoot Bridge Root PortSnmp Management Configuration Access Right Snmp Management Configuration MenuSnmp Manager Setting Snmp Community StringCold Start Snmp Trap Manager SettingAuthentication Failure Link Change EventPage Vlan Port Management Vlan Port Management Menu Vlan Port Management menuPort # Create New VlanNew Vlan Name TrunkGroupPage Delete Vlan Menu Vlan NameModify Vlan Menu Virtual LAN NameTrunking Port Management Menu Trunking Port Management menuName Create New Trunking PortNew Trunking Group Name Page Modify Trunking Port Delete Trunking PortTrunking Port Trunking Port Name Modify Trunking PortTroubleshooting ProblemSolutionPage Diagnostic LED Port Specifications Appendix a DES-5024 Technical SpecificationsSwitch Specifications 10BASE-T EMI Fast Ethernet Switching System User’s Guide Performance Access Level IndexUser Name 50, 52