334Starting and Configuring the Dell™PowerConnect™ 27XXNOTE: Before proceeding, read the release notes for this product. The release notes can bedownloaded from support.dell.com.NOTE: It is recommended that the most recent revision of the user documentation is obtained from theDell Support Website at support.dell.com.Viewing Switch OperationThe power-on self-test (POST) runs every time the switch is initialized, and checks hardwarecomponents to determine if the device is fully operational before completely booting. If a criticalproblem is detected, the program flow stops. The boot process runs approximately 10 seconds.The Managed Mode LED indicates whether POST has passed successfully or failed. When POSTcompletes successfully, the Managed Mode LED indicator is off if in Unmanaged Mode, and solidgreen if in Managed Mode. When a critical problem is detected, the POST process fails and theManaged Mode LED indicator turns solid amber (PowerConnect 2748). If the process fails in thePowerConnect 2708/2716/2724 switch the Managed Mode LED indicator turns solid red.Initial ConfigurationThe switch is delivered from the factory in Unmanaged Mode. This section describes how to enterManaged Mode and configure the switch. If the user wishes to use the switch as an unmanagedswitch, they can simply plug the switch in and start using it. No configuration is necessary.The PowerConnect device provides you the flexibility of basic network connectivity withoutsignificant effort or advanced network connectivity with web-managed features and funtionality. Ifyou require basic connectivity and do not want to manage these devices, once you have powered upthe device and connected your network cabling you may stop there. If you desire to manage thedevice, you will need to follow the instructions detailed here in the remaining sections of thischapter.The initial configuration of the device uses the following assumptions:• The PowerConnect device was never configured before and it is in the same state as whenreceived.• The PowerConnect device booted successfully.