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3Com C17304, C17302 Problem Solving, Solving Problems Indicated by LEDs Solving Hardware Problems

Models: C17304 C17302 3C17300

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Page 53

4	PROBLEM SOLVING

This chapter helps you to diagnose and solve problems you may have with the operation of your Switch. There is also an explanation of IP addressing.

The topics covered are:

■Solving Problems Indicated by LEDs

■Solving Hardware Problems

■Solving Communication Problems

■Solving Software Upgrade Problems

If you experience a problem that is not listed here, it may be included in the support section of the SuperStack 3 Switch Management Interface Reference Guide on the CD-ROM that accompanies your Switch.

For Technical Support information, see Appendix D.

Image 53

3Com C17304, 3C17300, C17302 manual Problem Solving, Solving Problems Indicated by LEDs Solving Hardware Problems

Contents

SuperStack Switch 4200 Series Getting Started GuideEnvironmental Statement 3Com Corporation 5400 Bayfront Plaza Santa Clara, CaliforniaUNITED STATES GOVERNMENT LEGEND 1 INTRODUCING THE SUPERSTACK 3 SWITCH 4200 SERIES CONTENTS2 INSTALLING THE SWITCH ABOUT THIS GUIDE4 PROBLEM SOLVING 3 SETTING UP FOR MANAGEMENTChanging Default Passwords SNMP ManagementC TECHNICAL SPECIFICATIONS SAFETY INFORMATIONPIN-OUTS D TECHNICAL SUPPORTINDEX REGULATORY NOTICES ABOUT THIS GUIDE Commands ConventionsIcon Notice TypeDocumentation RelatedProduct pddtechpubscomments@3com.comRegistration DocumentationAbout the Switch 4200 Series Switch 4200 Series - Front View Detail SUPERSTACK 3 SWITCHSwitch 4200 Series - Rear View Detail Default Settings INTRODUCING THE4200 Series About the SwitchFeature Switch 4200 SeriesFront View Detail Switch 4200 SeriesFigure 1 Switch 4226T 3C17300 - front view Power / Self Test LEDGBIC Ports This section applies to the SuperStack 3 Switch 4228G only 1000BaseT GBICs Fiber GBICsColor IndicatesColor Power/Self Test LEDIndicates Unit LEDsRear View Detail System RPS. See “Connecting a Redundant Power System” on pageSwitch 4200 Series Figure 4 Switch 4200 Series - rear viewIP Address Subnet Mask Default Router Package Contents Choosing a Suitable Site Rack-mounting INSTALLING THE SWITCHPlacing Units On Top of Each Other The Power-up Sequence GBIC OperationSite Package ContentsChoosing a Suitable Rack-mounting 3 Insert the two screws and tighten with a suitable screwdriver Stacking Units Powering-up the The Power-upSwitch 4200 Series SequenceIf there is evidence of a problem, see “Solving Problems Indicated by LEDs” on pageThe 1000BASE-SX ports can be connected to multimode fiber cables only Fiber cablesChoosing the correct Choose from the following cable options Transceivers GBIC Operation28 CHAPTER 2 INSTALLING THE SWITCH GBIC Transceiver Figure 7 Inserting a GBIC TransceiverGBIC Ports 30 CHAPTER 2 INSTALLING THE SWITCH Setting Up Overview Manually Configuring IP Information SETTING UP FOR MANAGEMENTViewing Automatically Configured IP Information Methods of Managing a SwitchOverview Setting Upset up and ready for management when it is in its default state. The Configure IP information manually for your Switch or view theAutomatic IP Configuration Manual IP ConfigurationYou should use the automatic IP configuration method if on pagePre-requisites Manually Configuring IP InformationConfiguring the Workstation with IP Information Connecting the Workstation to the SwitchSetting Up the Switch with IP Information Using the Web InterfaceUsing Command Line Interface via Telnet Figure 10 Example top-level command line interface menu Connecting the Workstation to the Switch You can find pin-out diagrams for both cables in Appendix B on pageFigure 11 Connecting a workstation to the Switch via the console port Pre-requisites19,200 baud 8 data bits no parity 1 stop bit no hardware flow control Setting Up the Switch with IP InformationFigure 12 Example top-level command line interface menu Viewing Configured IPAutomatically InformationViewing Automatically Configured IP Information Connecting the Workstation to the SwitchFigure 14 Example top-level command line interface menu Viewing IP Information via the Console PortMethods of Managing a Switch Refer to “Setting Up Web Interface Management” on page Refer to “Setting Up Command Line Interface Management” on pageRefer to “Setting Up SNMP Management” on page Command Lineusing Telnet Interfacedescribed in “Setting Up Overview” on page Setting Up WebChoosing a Browser InterfaceOver the Network Setting Up SNMPthe CD-ROM that accompanies your Switch to provide SNMP management for your Switch. If you use 3Com Network Supervisor itThe security device user modify command on the CLI, or The Security Device User Modify operation on the web interface Default Users and Passwords52 CHAPTER 3 SETTING UP FOR MANAGEMENT Solving Communication Problems Solving Software Upgrade Problems PROBLEM SOLVINGSolving Problems Indicated by LEDs Solving Hardware Problems solutions below Solving ProblemsThe Power LED does not light On powering-up, the Power/Self Test LED lights yellowSolving Communication Problems ProblemsError message indicating that the GBIC transceiver is invalid Error message indicating that the GBIC transceiver is faultyFormation Solving StackHow do you obtain a registered IP Address? ProblemsIf you have problems with your software upgrade, refer to the Problem 58 CHAPTER 4 PROBLEM SOLVING SAFETY INFORMATION Important Safety Information Important Safety Information L’information de Sécurité Importante AVERTISSEMENT Cordon électrique Wichtige Sicherheitsinformationen VORSICHT Europe VORSICHT Faseroptikanschlüsse - Optische Sicherheit PC-AT Serial Cable B PIN-OUTSNull Modem Cable RJ-45 Pin Modem CableAssignments Signal1000BASE-T RJ-45 RJ-45 connectorsPin Assignments SignalTable 13 Pin assignments SignalPin Number FunctionSwitch 4226T 3C17300 TECHNICAL SPECIFICATIONSPhysical Dimensions Safety72 APPENDIX C TECHNICAL SPECIFICATIONS Protocols Used for AdministrationStandards Supported Terminal EmulationPhysical Dimensions Switch 4250T 3C17302Safety Power SupplyPhysical Dimensions Switch 4228G 3C17304Safety Power SupplyOnline Technical Services3Com. These services can enhance warranty response times. They can 7 days a week, advance shipment of replacement hardware, and on-siteUsername anonymous Europe, Middle East and Africa Asia, Pacific RimLatin America aprtechnicalsupport@3com.comCountry Asia, Pacific RimTelephone Number CountryReturning Products for Repair Telephone Number CountryCountry Telephone NumberINDEX Page REGULATORY NOTICES How to Identify and Resolve Radio-TV Interference ProblemsFCC STATEMENT INFORMATION TO THE USER