3Com 3CR17661-91, 3CR17662-91, 3CR17660-91 manual Problem Solving

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58CHAPTER 4: PROBLEM SOLVING

If your IP network is internal to your organization only, that is, you do not access the Internet, you may use any arbitrary IP address as long as it is not being used by another device on your network. 3Com suggests you use addresses in the range 192.168.0.0 to 192.168.255.255 with a subnet mask of 255.255.255.0.

These suggested IP addresses are part of a group of IP addresses that have been set aside specially for use ‘in house’ only.

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Contents

3Com Switch 4200G Family 3Com Corporation Campus Drive Marlborough United States Government LegendPage Page Contents Installing the Switch Problem Solving PIN -OUTS About this Guide Icon Description ConventionsConvention Description Documentation RelatedDocumentation Comments Pddtechpubscomments@3com.comIntroducing About the Switch 4200G Hardware Features Switch 4200GSwitch 4200G-Front View CommanderSwitch 4200G 48-Port-front view Display Mode LED Color Description Status DisplayColor Indicates Mode LED10/100/1000BASE-T Port LEDs Slots Rear View Detail1000BASE-X Port SFP Port LEDs Rmon Alarm Feature Switch 4200G Automatic IP ConfigurationDuplex Mode Configuration SaveInstalling the Switch Choosing a Suitable Package ContentsSite Rack-mounting To rack-mount your SwitchFront of the Switch, as shown in Figure Inch racksRepeat and for the other side of the Switch Fitting a Bracket for Rack-MountingSwitch 4200G Power-upPowered-up and ready for operation SequenceSFP Operation LEDs on page 54 for a list of suggested solutionsSFP port Remove the plastic protective cover if fitted Inserting an SFP TransceiverCorrect Cables Your SwitchChoosing TransceiverChoosing the Correct Cables Installing the Switch Setting UP for Management Command Line Interface Management Methods of Managing a SwitchRefer to Setting Up Command Line Interface Management on User View There are two main views in the CLISystem View Setting Up OverviewSnmp Manual IP Configuration Automatic IP Configuration using DhcpManually Configuring IP Information Connecting the Workstation to the Switch PrerequisitesSetting Up the Switch with IP Information Enter the system-viewcommand and Enter Enter interface vlan 1 and EnterWith a Network Using the Web Interface Using Command Line Interface using Telnet Enter the default gateway for the Switch Viewing Automatically Configured IP InformationUsing 3Com Network Director Viewing IP Information using the Console Port Command Line Interface ManagementSetting Up Command Line Interface Management using SSHInterface Setting Up WebChoosing a Browser Windows Red Hat Over the Network2000 Windows XP Server Setting Up Snmp Management V1 or Default Users User Default Access Level Name PasswordSetting UP for Management Problem Solving Solving Problems Indicated by LEDs Problems Solving HardwareError message indicating that the SFP transceiver is faulty Unit fails, no Snmp fan failure message is receivedIP Addressing Solving Communication ProblemsHow do you obtain a registered IP Address? Problem Solving Upgrading Software File list similar to the following is displayed To back up the bootrom file on your Switch, enter To back up the application file on your Switch, enterIf the recycle-bin is empty the following is displayed Command Line Interface Switch Setup Via network port 4200G ping aaa.aaa.aaa.aaaTo install the new web management code, enter Type y when promptedTo install the new application code, enter To download the web management file, enterFollowing information is displayed Enter y to display the following messageFollowed by a password prompt Bootrom InterfaceUpgrading from S3t03010024.zip 3comoscfg.def 3comoscfg.cfg s3t030100s56.app Enter your choice0-3 Select option 2 to display the following Select option 3 to display the followingBootrom UpgradingUsing Tftp Using FTPUsing XModem Ccccccccccccccccccccccccccccc Upgrading Software Safety Information Power Cord Set-Japan Important Safety Information This must be approved for the country where it is usedImportant Safety Information ’information de Sécurité Importante Schko Dispositif Laser De Classe Wichtige Sicherheitsinformationen Vorsicht Das Gerät muß geerdet seinInformación de Seguridad Importante Schuko Importanti Informazioni di Sicurezza Stati Uniti e Ważne informacje o zabezpieczeniach Ważne informacje o zabezpieczeniach Ostrzeżenie Porty światłowodowe-bezpieczeństwo PIN-OUTS 10/100 and 1000BASE-T RJ-45 connections Ethernet Port RJ-45 Pin AssignmentsPin Number 10/100 1000 Ethernet Port RJ-45 Pin Assignments Appendix B PIN-OUTS Switch 4200G 12-Port Switch 4200G 24-Port Switch 4200G 48-Port Appendix C Technical Specifications Product ServicesRegister Your PurchaseOnline Access SoftwareTroubleshoot DownloadsContact Us Latin America Telephone Technical Support and Repair Country Telephone NumberUS and Canada Telephone Technical Support and Repair Index NumbersSFP Regulatory Notices