3Com 3 Troubleshoot, Online, Access Software, Downloads, Telephone Technical, Support and Repair

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78APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT

Troubleshoot	You will find support tools posted on the 3Com web site at
Online	http://www.3com.com/
	3Com Knowledgebase helps you troubleshoot 3Com products. This
	query-based interactive tool is located at
	http://knowledgebase.3com.com and contains thousands of technical
	solutions written by 3Com support engineers.

Access Software	Software Updates are the bug fix / maintenance releases for the version
Downloads	of software initially purchased with the product. In order to access these
	Software Updates you must first register your product on the 3Com web
	site at http://eSupport.3com.com/
	First time users will need to apply for a user name and password. A link to
	software downloads can be found at http://eSupport.3com.com/, or
	under the Product Support heading at http://www.3com.com/
	Software Upgrades are the software releases that follow the software
	version included with your original product. In order to access upgrades
	and related documentation you must first purchase a service contract
	from 3Com or your reseller.

Telephone Technical	To enable telephone support and other service benefits, you must first
Support and Repair	register your product at http://eSupport.3com.com/
	Warranty and other service benefits start from the date of purchase, so it
	is important to register your product quickly to ensure you get full use of
	the warranty and other service benefits available to you.
	When you contact 3Com for assistance, please have the following
	information ready:
	■ Product model name, part number, and serial number
	■ Proof of purchase, if you have not pre-registered your product
	■ A list of system hardware and software, including revision level
	■ Diagnostic error messages
	■ Details about recent configuration changes, if applicable

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Contents

SuperStack 3Com Corporation 350 Campus Drive Marlborough, MA United States Government LegendContents Setting UP for Management PIN-OUTS Page About this Guide Conventions Icon DescriptionConvention Description Related DocumentationAbout this Guide Introducing About the Switch FamilySwitch 4200 Family Front View DetailIntroducing the Superstack 3 Switch 4200 Family Port Status LEDs 10/100/1000BASE-T ports Color Indicates Port Status LEDs 10BASE-T/100BASE-TX portsPort Status LEDs SFP ports Unit LEDsLED Color Indicates Power/Self Test LED Rear View DetailAlert LED Rmon Alarm Feature Switch 4200 Family Automatic IP ConfigurationDuplex Mode Quality of Service QoSIntroducing the Superstack 3 Switch 4200 Family Installing the Switch Package Contents Choosing a SuitableSite Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack-mountingPlacing Units On Top of Each OtherStacking Units Switch 4200 Family Power-upPowering-up SequenceSFP port on the Switch 4200 28-Port SFP OperationColor State Installing the Switch Correct Cables Your SwitchChoosing TransceiverFiber Cables Cross-over Cable Straight-through CableChoosing the Correct Cables Installing the Switch Setting UP for Management Automatically configured IP information Setting UpConfigure IP information manually for your Switch or view OverviewManual IP Configuration Automatic IP ConfigurationSetting UP for Management Manually Configuring IP Information Pre-requisitesConnecting the Workstation to the Switch Configuring the Workstation with IP InformationSetting Up the Switch with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port 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 Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on Interface Management Command LineNetwork Using Telnet CLI Management viaSetting Up Web InterfaceChoosing a Browser Over the Network Setting Up SnmpManagement Protocol Snmp can manage a Switch if Management workstationDefault Users User Default Access Level Name PasswordSecurity device user modify command on the CLI, or Security Device User Modify operation on the web interfaceSetting UP for Management Problem Solving For Technical Support information, see Appendix DPower LED does not light Solving ProblemsSolutions below On powering-up, the Power/Self Test LED lights yellowSolving Communication Problems Error message indicating that the SFP transceiver is faultyIP Addressing Formation Upgrade ProblemsSolving Stack Solving SoftwareSafety Information Important Safety Information This must be approved for the country where it is usedImportant Safety Information ’information de Sécurité Importante Schko Wichtige Sicherheitsinformationen Vorsicht Europe Información de seguridad importante Schuko Importanti informazioni di sicurezza Avvertenza Lunità deve disporre di messa a terra Prodotto Laser Classe Pin to RS-232 25-pin Null Modem CablePC-AT Serial Cable Pin to 9-pinAssignments Modem CableRJ-45 Pin Pin Number 10/100 1000Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 4200 26-Port 3C17300A Switch 4200 50-Port 3C17302A Switch 4200 28-Port 3C17304A Appendix C Technical Specifications Product ServicesRegister Your PurchaseOnline Access SoftwareTroubleshoot DownloadsContact Us Country Telephone Number Latin America Telephone Technical Support and RepairUS and Canada Telephone Technical Support and Repair Index NumbersSFP ports 14 SFP transceiver Regulatory Notices

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