3Com 3C17203 Getting Started Manual

Also see for 3C17203 - SuperStack 3 Switch 4400: Datasheet Getting started guide Getting started guide Implementation guide Getting started guide

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3Com 3C17203 Getting Started Manual Manual pdf 26 page image

26 CHAPTER 2: I NSTALLING THE S WITCH3Com recommends that you initialize a Switch 4400 unit that haspreviously been used elsewhere in your network before you add it to anexisting stack. If you do not initialize the unit, problems may be caused byconflicting Switch configurations.When the Switch 4400s are stacked together they are assigned a unitnumber from bottom-to-top for management purposes. When furtherswitches are added to the stack, they can be positioned at the bottom ofthe stack or at the top. Either way, the Switch management software willre-order the Switch unit numbers into a logical order again (from bottomto top).The Power-upSequenceThe following sections describe how to get your Switch 4400powered-up and ready for operation.Powering-up theSwitch 4400Use the following sequence of steps to power-up the Switch.1 Plug the power cord into the power socket at the rear of the Switch.2 Plug the other end of the power cord into your power outlet.The Switch powers-up and runs through its Power On Self Test (POST),which takes approximately 10 seconds.Checking for CorrectOperation of LEDsDuring the Power On Self Test, all ports on the Switch are disabled andthe LEDs light in a set sequence.When the POST has completed, check the Power/Self Test LED to makesure that your Switch is operating correctly. Table 7 shows possible colorsfor the LED.Table 7 Power/Self Test LED colorsIf there is evidence of a problem, see “Solving Problems Indicated byLEDs” on page 48.Color StateGreen The Switch is powered-up andoperating normally.Yellow The Switch has failed its Power On SelfTest. This occurs if any of the ports failduring power-up.Off The Switch is not receiving power.DUA1720-3AAA03_online.book Page 26 Monday, March 25, 2002 10:48 AM