D-Link DES-5024 manual Port State, Priority, Flow Control

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Fast Ethernet Switching System User’s Guide

Ports set in the 10Tx/Half state are set to work at 10 Mbps half duplex.

Ports set in the 10Tx/Full state are set to work at 10 Mbps full duplex.

The 100BASE-FX ports can only be in the 100/Fx Half or 100/Fx Full states. The 1000BASE-FX port can only be in 1000SX/Full. Half-duplex operation is not supported in the Gigabit Module.

Port State

All ports have four states: blocking, listening, learning and forwarding. Blocking means that nothing is coming through the port. If the Spanning Tree Algorithm detects a loop it will change the state of the port where the loop is detected to the Blocking State. You can disable the Spanning Tree Algorithm. Forwarding means the port is forwarding data packets to their destination. Listening means that the port is listening for data packets. Learning means the port is learning the MAC address for data packets. This setting cannot be manually changed.

Priority

The port priority can be set from zero to 255. Zero is the highest port priority. The port assigned a zero will be the root port. The default setting will work in most situations.

Flow Control

The 1000BASE-SX module allows you to enable or disable flow control. Flow control allows the module to stop the flow of information from another device.

Follow these steps to change the port state:

1.Select the State setting of the appropriate port.

2.Toggle the space bar to change the current setting.

3.Select Save and press Enter.

Follow these steps to change a port’s physical state:

1.Select the physical setting of the appropriate port.

2.Toggle the space bar until you find the appropriate setting.

3.Select Save and press Enter.

Follow these steps to change the port priority:

1.Select the priority of the appropriate port.

2.Enter a new value between zero and 255.

3.Select Save and press Enter.

Follow these steps to enable or disable flow control:

1.Toggle the space bar to enable or disable flow control.

2.Select Save and press Enter.

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 About This Guide AudienceOrganization 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 Connecting the DES-5024 to the Network Cable SpecificationsCopper Cable 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 SpacebarSystem Configuration Console ProgramUser Account Management 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 System Rate Control Advantages of Store and ForwardDisadvantages 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 Users StatusDelete Page Change Password Old PasswordNew Password Page Switch Port Configuration Switch Port Configuration Menu StatePhysical Port State PriorityFlow Control Spanning Tree Configuration Spanning Tree Configuration MenuSTA Operation Levels 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 menuCreate New Trunking Port New Trunking Group NameName Page Delete Trunking Port Trunking PortModify Trunking Port Trunking Port Name Modify Trunking PortTroubleshooting ProblemSolutionPage Diagnostic LED Appendix a DES-5024 Technical Specifications Switch SpecificationsPort Specifications 10BASE-T EMI Fast Ethernet Switching System User’s Guide Performance Access Level IndexUser Name 50, 52