3Com 4210G manual Changing the Startup Mode

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	Item		Description
4.	Delete file from flash	Delete files from the flash memory

5.	Modify bootrom password	Modify the Boot ROM password

6.	Enter bootrom upgrade menu		Enter the Boot ROM update menu

7.	Skip current configuration file		Skip the current configuration file (this configuration is
7.	Skip current configuration file		valid once)
			valid once)

8.	Set bootrom password recovery		Restore the Boot ROM password

9.	Set switch startup mode	Set the startup mode of the switch

0.	Reboot		Restart the switch

zIf you perform no operation or press a key other than Ctrl + B within one second, Once the remaining waiting time becomes zero, the system begins to automatically start up and the following

information is displayed:

Auto-booting...

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...........................................OK!

User interface aux0 is available.

Press ENTER to get started.

The appearance of "Press ENTER to get started" indicates that the automatic startup of the switch is complete.

Press Enter. The following prompt is displayed:

<Sysname>

You can configure the switch now.

Changing the Startup Mode

By default, the system starts up in fast mode. If you want to change the startup mode to normal, press Ctrl + B within one second to enter the Boot Menu showed below:

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Contents 3Com Switch 4210G Family Environmental Statement Organization Chapter ContentsAbout This Manual ConventionsCreate Folder Related DocumentationObtaining Documentation Convention DescriptionTable of Contents Page Iii Overview 4210G 24-Port 4210G 48-Port 4210G PWR 4210G NTVDC Introduction to Switch 4210G Switch 4210G 24-PortSwitch 4210G 48-Port Switch 4210G PWR 24-Port Switch 4210G PWR 48-Port Switch 4210G NT 24-Port Ports Switch 4210G NT 48-PortConsole Port 10/100/1000Base-T Ethernet Port Specification1000Base-X SFP Port Model SFP port 10/100/1000Base-T Ethernet port LEDsCombo Port LEDsRPS Status LED Port Mode LEDSystem Status LED Status DescriptionStatus Seven-Segment LEDSystem status Seven-segment LED Description 10/100/1000Base-T Auto-Sensing Ethernet Port Status LED Status Description Port mode Ethernet port 1000Base-X SFP Port Status LEDShort-haul Dual-Port 10 GE CX4 Interface Module Optional Interface ModulesInterface Module Status LED Mark Status DescriptionCX4 Cable Connector type Length Dual-Port 10 GE XFP Interface ModuleOne-port 10 GE XFP Interface Module Central Max Transceiver Connector Fiber TransmissionDistance Dual-Port 10 GE SFP+ Interface Module Connector Fiber Transmission Cable type DistanceTransceiver Central Max Description of LEDs of Interface Modules 22 SFP+ cableSafety Precautions Installation SiteElectromagnetic Susceptibility Temperature/HumidityCleanness Gas Maximum concentration mg/mInstallation Tools Laser SafetyInstalling the Switch Installation Flow of the SwitchIntroduction to Mounting Bracket Configuration Type of front Mounting bracket Use Front Mounting Brackets to Install a SwitchModel Physical dimensions × W × D Configuration Type of rear Mounting BracketUse Front Mounting Brackets and a Tray to Install a Switch Use Front and Rear Mounting Brackets to Install a Switch Page Page Mounting the Switch on a Workbench Connecting the Grounding Cable When a Grounding Strip is AvailableWhere a Grounding Conductor Can be Buried Other Installation Sites Connecting the AC Power Cord Connecting the Power CordsSwitch module Power supply Connection method Mode Connecting the RPS Power Cord 16Connect an AC power cord to a horizontal AC power socketPage Installing an Interface Module Installing an Interface CardInstalling Dedicated CX4/SFP+ Cable Removing an Interface ModuleInstalling Switches for an IRF Removing Dedicated CX4/SFP+ CableInstallation Flow for an IRF Task RemarksDrawing a Plan for an IRF with Switches For details, see Installing an Interface ModuleConfigure the physical connection mode Page Verifying the Installation 29Cable connections for an IRF with 1-port interface modulesRJ-45 Signal Direction DB-9 Setting up the Configuration EnvironmentConnecting the Console Cable Console CableSetting Terminal Parameters Connection Procedure4Set the serial port used by the HyperTerminal connection 6HyperTerminal window Checking before Powering on the Switch Booting the SwitchPowering on the Switch Describes the fields above 2Description on the fields Changing the Startup Mode Enter Y. The system displays the following information BUS Clock Speed 33MHz Memory Size 128MB Mac Address Page Boot Menu Loading Software Through the Boot ROM MenuIntroduction to Loading Modes Press Ctrl + B. The system displays Loading Software Using Xmodem Through Console Port Introduction to XmodemRequired ROM file effective2Properties dialog box Cccccccccccccccccc CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdone Loading Software Using Tftp through Ethernet Port Loading host softwareLoad File name Loading Software Using FTP Through Ethernet Port Introduction to FTPDescription Loading Software Using FTP Loading Software Through CLILoading Software Using Tftp Update the Boot ROM program on the switchMissing Boot ROM Password Password Missing FailureMissing User Password Software Loading FailureRPS input Power Supply FailureAC input RPS&AC inputMark State System status LED Fan FailureSteady red Troubleshooting when there is no terminal display Configuration System FailureTroubleshooting when the terminal display is illegible