D-Link DES-3216 manual Troubleshooting, Problem Solution

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10/100 Auto Negotiation Switch User’s Guide

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Troubleshooting

This troubleshooting section is intended to help you solve the most common problems on the DES-3216.

The DES-3216 does not have external LED error messages. If there is an error and it cannot be resolved by implementing the solutions in this section, contact D-Link Technical Support.

All LEDs are explained in detail in Chapter 4, LEDs. If you are having a problem that is not discussed here, contact technical support.

Problem	Solution
POST Errors	The DES-3216 performs a Power On Self Test (POST) every time it is
	powered on. If you are connected to the DES-3216 through Local
	Console Management during the POST you can see the results
	displayed on your monitor. The login screen appears after the DES-
	3216 has completed the POST.
	The POST checks all of the hardware components on the DES-3216.
Cables	Faulty cables are the most common source of problems on Ethernet
	and Fast Ethernet networks. Check the cables first if you are having
	any problems connecting to a device.
	Ethernet is more fault tolerant than Fast Ethernet. If you are moving
	from Ethernet to Fast Ethernet, make sure the cables are pinned out
	correctly. See Chapter 3, Connecting the DES-3216 to the Network,
	Cable Specifications, for a diagram showing the proper pin
	arrangement for Ethernet and Fast Ethernet.
Port States	All ports on the DES-3216 have two modes: auto negotiation mode
	and forced mode. Ports in auto negotiation mode auto negotiate the
	proper speed and duplex mode. Ports in forced mode have been
	manually set to a particular speed and duplex mode. Check the LEDs
	on the DES-3216 and on the Network Interface Card to verify settings.
	See Chapter 4, LEDs, for an explanation of all LEDs.
	The port settings on the DES-3216 and the port settings on the device
	you are connecting to must be the same in order for them to
	communicate. Check the speed and duplex setting on both the port and
	device you are connecting to.

Power LED is Off Check the power plug and verify that you are getting power from the wall socket. If the DES-3216 is on, the power LED is not working properly. Return the DES-3216. If the DES-3216 is not powering on

Troubleshooting

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Contents DES-3216 10/100 Auto Negotiation Switch User’s Guide Link Limited Warranty Hardware North, Central, and South America FCC Warning Wichtige Sicherheitshinweise Table of Contents Page Page About This Guide AudienceOrganization Introduction FeaturesRear Panel Front PanelTelnet Management Management MethodsUpdating Firmware Local Console ManagementInstalling the DES-3216 Installation OptionsDesktop/ Shelf Installation Rack Installation Power OnCable Specifications Connecting the DES-3216 to the NetworkCable Diagram MDI-X Port Connecting the DES-3216 to the DES-5024 and HubsPorts DES-3216 to DES-3216 ConnectionLEDs LQNDES-3216 LED Panel Power LEDLED Local Console Management Managing the DES-3216∙ Data bits ∙ Parity None ∙ Stop bits ∙ Flow Control None TelnetLog ∙ Default User Name D-Link ∙ Default Password D-LinkHelp Message Help MessageSpacebar Panel ConventionsConsole Program System ConfigurationSwitch Port 1-8, 9-16 Configuration Spanning Tree ConfigurationSnmp Management Configuration Vlan Port ManagementTrunking Port Management System Information System Configuration MenuSystem Reset Factory Reset to Default Config ValuesHardware Revision Software UpdateBoot Prom Firmware Version System Information MenuSystem Description LAN Default GatewaySoftware Version MAC AddressSystem Reset System ResetFactory Reset Factory ResetFactory Reset Confirmation System Rate Control Advantages of Store and ForwardDisadvantages of Store and Forward Disadvantages of Cut-Through Advantages of Cut-ThroughSoftware Update Software Update MenuSoftware Update Transfer File Transfer through Xmodem User Account Management User Account Change MenuCreate New User User Name PasswordConfirm Password Access LevelDelete Users StatusDelete Change Password Change PasswordNew Password Old PasswordSwitch Port Configuration Switch Port Configuration Menu StatePhysical Priority Port StateSpanning Tree Algorithm Spanning Tree ConfigurationSpanning Tree Configuration Menu STA Operation LevelsHello Time Forward Delay TimeBridge Priority Root CostUser Selective STA parameters Root PortSnmp Management Configuration Menu Snmp Management ConfigurationSnmp Manager Setting Access RightSnmp Community String Link Change Event Snmp Trap Manager SettingAuthentication Failure Cold StartPage Vlan Port Management Menu Vlan Port ManagementVlan Port Management menu TrunkGroup Create New VlanNew Vlan Name Port #Vlan Name Delete Vlan MenuVirtual LAN Name Modify Vlan MenuTrunking Port Management menu Trunking Port Management MenuCreate New Trunking Port New Trunking Group NameName Trunking Port Delete Trunking PortTrunking Port Name Modify Trunking PortProblem Solution TroubleshootingPage Appendix a DES-3216 Technical Specifications Switch SpecificationsPort Specifications 10/100 Auto Negotiation Switch Users’ Guide General EMI 10/100 Auto Negotiation Switch Users’ Guide Performance Index Access LevelUser Name 32, 33