3Com 3CR17451-91 Network Using Telnet, Where xxx.xxx.xxx.xxx is the IP address of the Switch

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Setting Up Command Line Interface Management 41

CLI Management via To manage a Switch using the command line interface via the local the Console Port console port connection:

1Ensure you have connected your workstation to the console port correctly as described in “Connecting to the Console Port” on page 33.

2Your Switch is now ready to continue being managed and/or configured through the CLI via its console port.

CLI Management over	To manage a Switch using the command line interface over a network
the Network	using Telnet:

1Ensure you have already set up the Switch with IP information as described in “Setting Up Overview” on page 30.

2Check that you have the IP protocol correctly installed on your management workstation. You can check this by trying to browse the World Wide Web. If you can browse, the IP protocol is installed.

3Check you can communicate with the Switch by entering a ping command at the DOS prompt in the following format:

ping xxx.xxx.xxx.xxx

(where xxx.xxx.xxx.xxx is the IP address of the Switch)

If you get an error message, check that your IP information has been entered correctly and the Switch is powered up.

4To open a Telnet session via the DOS prompt, enter the IP address of the Switch that you wish to manage in the following format:

telnet xxx.xxx.xxx.xxx

(where xxx.xxx.xxx.xxx is the IP address of the Switch)

If opening a Telnet session via third party software you will need to enter the IP address in the format suitable for that software.

5At the login and password prompts, enter admin as your user name and press Return at the password prompt (or the password of your choice if you have already modified the default passwords).

If the login prompt does not display immediately, press Return a few times until it starts.

6If you have logged on correctly, the top-level menu of the command line interface for the Switch you wish to manage is displayed as shown in Figure 8 on page 35.

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Contents SuperStack 3 Switch 3870 Family Getting Started Guide United States Government Legend 3Com Corporation Campus Drive Marlborough MA USAContents Setting UP for Management PIN-OUTS Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedDocumentation documentation Comments To access the online documentation from the CD-ROM3870 SwitchHardware Features Switch Front View Detail Switch1000BASE-T Ports Stacking Status LED Color Indicates Port Status/Packet LEDsStack Master LED Unit LED Power/Self Test LEDFault LED Color Indicates Module LEDsView Detail Port Speed Feature Switch Port StatusDuplex Mode Type of Unit Total Units in the Stack Maximum Modules PortDefault Settings Introducing the Superstack 3 Switch Installing the Switch Choosing a Suitable Package ContentsSite Rack-mounting Power lines and fluorescent lighting fixturesTo rack-mount your Switch Switch, as shown in FigureFitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the SwitchSequence Power-upPowered-up and ready for operation SwitchCross-over Cable Straight-through Cable Power System outputSFP Operation Remove the plastic protective cover if fitted Transceiver Your SwitchRemoving an SFP Installing the Switch Setting UP for Management Overview Setting UpAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationSetting Up the Switch with IP Information Connecting the Workstation to the SwitchExample top-level command line interface menu Viewing Configured IPAutomatically Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Refer to Setting Up Command Line Interface Management on Management Command LineInterface Management Web InterfaceWhere xxx.xxx.xxx.xxx is the IP address of the Switch Network Using TelnetOver the Network Setting Up WebInterface Choosing a BrowserDefault Users Setting Up SnmpPasswords Security Device User Modify operation on the web interface User Default Access Level Name PasswordProblem Solving Indicated by LEDs Solving ProblemsPower/Self Test LED does not light On powering-up, the Power/Self Test LED remains yellowPort Status LED is flashing green/yellow ProblemsRefer to the list of suggested solutions below Solving HardwareUnit fails or Snmp thermal shutdown trap is received Fan failure warning message is receivedError message indicating that the SFP transceiver is faulty Solving Communication ProblemsIP Addressing How do you obtain a registered IP Address? Solving Software Upgrade Problems Problem Solving Safety Information This must be approved for the country where it is used Power Cord Set Japan Important Safety InformationImportant Safety Information Class ’information de Sécurité Importante’information de Sécurité Importante Dispositif Laser De Classe Vorsicht Europe Wichtige SicherheitsinformationenLaser Gerät der Klasse Información de seguridad importanteSchuko Appendix a Safety Information CSA Importanti Informazioni di SicurezzaSolo Regno Ważne informacje o zabezpieczeniach Appendix a Safety Information Laser Produkt Klasa Appendix a Safety Information Null Modem Cable RJ-45 to RS-232 25-pin PC-AT Serial CableRJ-45 to 9-pin Pin Number 10/100 1000 Modem CableRJ-45 Pin Assignments RJ-45 to RS-232 25-pinPin Number 10/100 1000 Appendix B PIN-OUTS Switch 3870 24 Port Switch 3870 48 Port Purchase Product to Gain Service BenefitsServices Register YourTelephone Technical Access SoftwareDownloads Contact UsAustralia 800 678 Philippines US and Canada Telephone Technical Support and Repair Index SFP Page Chapter Index Regulatory Notices