D-Link DES-5016 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-5016 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.

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Contents DES-5016 Fast Ethernet Switching System User’s Guide Link Limited Warranty Hardware SoftwareNorth, Central, and South America Link Offices for Registration and Warranty ServiceEurope and Israel Copyright Statement Wichtige Sicherheitshinweise Table of Contents Page Page Audience About This GuideOrganization Features IntroductionPage Front Panel DES-5016TXDES-5016TF DES-5016TFRear Panel DES-5016 Rear PanelManagement Methods Updating FirmwareLocal Console Management Telnet ManagementInstalling the DES-5016 Unpacking the DES-5016Installation Options Desktop/ Shelf Installation Install Feet on BottomAttach Feet Rack Installation Attach Mounting BracketsInsert into Rack Installing Optional Modules Remove Blank Bracket Insert Optional Module Power On Cable Specifications Connecting the DES-5016 to the NetworkCopper Cable Cable Diagram Fiber Optic Cable Ports MDI-X PortsFiber Optic Ports RS-232 PortConnecting the DES-5016 to other Switches and Hubs DES-5016 to DES-5016 ConnectionLEDs DES-5016TF LEDsPower DiagnosticCPU Module StatusLED Port TX Module LinkAct 100/10Port TX Module LEDs Port FX Module Link/ ActPort 100BASE-FX Module ColLit Dark Port 1000BASE-SX Module Gigabit Module LEDManaging the DES-5016 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 SpacebarSystem Configuration Switch Port 1-8, 9-16 and Optional Module Configuration100BASE-FX/ 1000BASE-SX Switch Port Module Console ProgramSpanning Tree Configuration Snmp Management ConfigurationVlan Port Management Trunking Port ManagementSystem Configuration Menu System ResetFactory Reset to Default Config Values System InformationSoftware Update Boot Prom Firmware VersionSystem Information Menu Hardware RevisionLAN Default Gateway MAC AddressSystem Description System NameSystem Reset System ResetFactory Reset Factory ResetFactory Reset Confirmation Advantages of Store and Forward System Rate ControlDisadvantages 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 MenuPassword Confirm PasswordAccess Level Create New UserPage Status Delete UsersDelete Page Old Password Change PasswordNew Password Page Switch Port Configuration State Switch Port Configuration MenuPhysical Priority Port StateFlow Control Spanning Tree Configuration Menu Spanning Tree ConfigurationSTA Operation Levels Forward Delay Time Spanning Tree AlgorithmBridge Priority Root CostRoot Bridge Root PortSnmp Management Configuration Snmp Management Configuration Menu Snmp Manager SettingAccess Right Snmp Community StringSnmp Trap Manager Setting Authentication FailureCold Start Link Change EventPage Vlan Port Management Vlan Port Management Menu Vlan Port Management menuCreate New Vlan New Vlan NamePort # TrunkGroupPage Delete Vlan Menu Vlan NameModify Vlan Menu Virtual LAN NameTrunking Port Management Menu Trunking Port Management menuNew Trunking Group Name Create New Trunking PortName Page Trunking Port Delete Trunking PortModify Trunking Port Trunking Port Name Modify Trunking PortTroubleshooting Problem Solution Post ErrorsCables Port StatesPage Diagnostic LED Switch Specifications Appendix a DES-5016 Technical SpecificationsPort Specifications Page Fast Ethernet Switching System User’s Guide General EMI Fast Ethernet Switching System User’s Guide Performance Index ActUser Name 52, 54