D-Link DES-3224 manual Troubleshooting, Problem Solution

Page 68

10/100 Auto Negotiation Switch User’s Guide

6

Troubleshooting

This troubleshooting section is intended to help you solve the most common problems on the DES-3224.

Many problems on the DES-3224 are indicated by the Utilization LED during the powering on process. All LEDs are explained in detail in Chapter 4, LEDs. Error codes are displayed on the Utilization LED. Table 8, System Error LED Indicators, displays the meaning of the error code. If you are having a problem that is not discussed here, contact technical support.

Problem

Solution

POST Errors

The DES-3224 performs a Power On Self Test (POST)

 

every time it is powered on. If you are connected to the

 

DES-3224 through Local Console Management during

 

the POST you can see the results displayed on your

 

monitor. The login screen appears after the DES-3224

 

has completed the POST.

 

The POST checks all of the hardware components on

 

the DES-3224.

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-3224 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-3224 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-3224 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-3224 and the port settings

 

on the device you are connecting to must be the same in

Troubleshooting

58

Image 68
Contents DES-3224 10/100 Auto Negotiation Switch User’s Guide Link Limited Warranty Hardware North, Central, and South America FCC Warning Wichtige Sicherheitshinweise Page Table of Contents Page Page Page Organization About This GuideAudience Front Panel FeaturesIntroduction Side Panels MDI-Uplink port MDI-X portsRear Panel Management MethodsLocal Console Management Telnet ManagementUpdating Firmware Unpacking the DES-3224 Installing the DES-3224Installation Options Rack Installation Power OnDesktop/ Shelf Installation Connecting the DES-3224 to the Network Cable SpecificationsCable Diagram Cable Requirements Ports MDI-II PortMDI-X Port RS-232 PortConnecting the DES-3224 to the DES-5024 and Hubs DES-3224 to DES-3224 ConnectionPower LED LEDsFull/ Half LED DES-3224 LED PanelSpeed/ Link/ Activity LED Utilization LEDs Managing the DES-3224 Local Console ManagementTelnet ∙ Parity None ∙ Stop bits ∙ Flow Control None∙ Default User Name D-Link ∙ Default Password D-Link LogHelp Message Help MessageSpacebar System Configuration Switch Port 1-8, 9-16, 17-24 ConfigurationSpanning Tree Configuration Console ProgramSystem Configuration Menu Snmp Management ConfigurationVlan Port Management Trunking Port ManagementSystem Reset Factory Reset to Default Config ValuesSoftware Update System InformationBoot Prom Firmware Version System Information MenuHardware Revision Software VersionLAN Default Gateway System DescriptionSystem Name System LocationSystem 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 UpdateSoftware Update Transfer Message Displayed as Eeprom is Being Written Create New User User Account ManagementUser Account Change Menu Password Confirm PasswordAccess Level User NameDelete Users StatusDelete New Password Change PasswordOld Password State Switch Port ConfigurationSwitch Port Configuration Menu Priority PhysicalPort State STA Operation Levels Spanning Tree ConfigurationSpanning Tree Configuration Menu Forward Delay Time Spanning Tree AlgorithmBridge Priority Root CostRoot Bridge Root PortSnmp Management Configuration Snmp Management Configuration MenuSnmp Community String Snmp Manager SettingAccess Right Snmp Trap Manager Setting Authentication FailureCold Start Link Change EventPage Vlan Port Management Vlan Port Management MenuVlan Port Management menu Create/ View Vlan New Vlan NamePort # TrunkGroupDelete Vlan Menu Vlan NameModify Vlan Menu Virtual LAN NameVlan Modify menu Trunking Port Management Menu Trunking Port Management menuName Create New Trunking PortNew Trunking Group Name Delete Trunking Port Trunking PortModify Trunking Port Trunking Port NameTrunking Port Modify menu Troubleshooting Problem SolutionPower LED is Off System Error LED Indicators Port Specifications DES-3224 Technical SpecificationsSwitch Specifications General EMI Access Level IndexUser Name 34, 35