Problem Solving | 3Com 3CR17450-91, 3CR17451-91 guide

52CHAPTER 4: PROBLEM SOLVING

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3Com 3CR17450-91, 3CR17451-91 manual Problem Solving

Contents

SuperStack 3 Switch 3870 Family Getting Started Guide 3Com Corporation Campus Drive Marlborough MA USA United States Government Legend Contents Setting UP for Management PIN-OUTS Page About this Guide Conventions Icon DescriptionConvention Description Related DocumentationDocumentation documentation To access the online documentation from the CD-ROM Comments Switch 3870 Hardware Features Switch Switch Front View Detail 1000BASE-T Ports Color Indicates Port Status/Packet LEDs Stacking Status LEDStack Master LED Color Indicates Module LEDs Power/Self Test LEDFault LED Unit LED View Detail Type of Unit Total Units in the Stack Maximum Modules Port Feature Switch Port StatusDuplex Mode Port Speed Default Settings Introducing the Superstack 3 Switch Installing the Switch Package Contents Choosing a SuitableSite Switch, as shown in Figure Power lines and fluorescent lighting fixturesTo rack-mount your Switch Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mounting Switch Power-upPowered-up and ready for operation Sequence Power System output Cross-over Cable Straight-through Cable SFP Operation Remove the plastic protective cover if fitted Your Switch TransceiverRemoving an SFP Installing the Switch Setting UP for Management Setting Up Overview Manual IP Configuration Automatic IP Configuration Setting UP for Management Manually Configuring IP Information Pre-requisites Connecting the Workstation to the Switch Setting Up the Switch with IP Information Example top-level command line interface menu Configured IP ViewingAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Refer to Setting Up Command Line Interface Management on Web Interface Command LineInterface Management Management Network Using Telnet Where xxx.xxx.xxx.xxx is the IP address of the Switch Choosing a Browser Setting Up WebInterface Over the Network Setting Up Snmp Default UsersPasswords User Default Access Level Name Password Security Device User Modify operation on the web interface Problem Solving On powering-up, the Power/Self Test LED remains yellow Solving ProblemsPower/Self Test LED does not light Indicated by LEDs Solving Hardware ProblemsRefer to the list of suggested solutions below Port Status LED is flashing green/yellow Fan failure warning message is received Unit fails or Snmp thermal shutdown trap is received Solving Communication Problems Error message indicating that the SFP transceiver is faultyIP Addressing How do you obtain a registered IP Address? Solving Software Upgrade Problems Problem Solving Safety Information Power Cord Set Japan Important Safety Information This must be approved for the country where it is used Important Safety Information ’information de Sécurité Importante Class ’information de Sécurité Importante Dispositif Laser De Classe Wichtige Sicherheitsinformationen Vorsicht Europe Información de seguridad importante Laser Gerät der Klasse Schuko Appendix a Safety Information Importanti Informazioni di Sicurezza CSA Solo Regno Ważne informacje o zabezpieczeniach Appendix a Safety Information Laser Produkt Klasa Appendix a Safety Information PC-AT Serial Cable Null Modem Cable RJ-45 to RS-232 25-pinRJ-45 to 9-pin RJ-45 to RS-232 25-pin Modem CableRJ-45 Pin Assignments Pin Number 10/100 1000 Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 3870 24 Port Switch 3870 48 Port Register Your Product to Gain Service BenefitsServices Purchase Contact Us Access SoftwareDownloads Telephone Technical Australia 800 678 Philippines US and Canada Telephone Technical Support and Repair Index SFP Page Chapter Index Regulatory Notices