4-3Enabling of this function consumes some amounts of CPU resources. Therefore, if your network has ahigh CPU usage requirement, you can disable this function to release your CPU resources.Specifying the APP to be Used at RebootAPP is the host software of the switch. If multiple APPs exist in the Flash memory, you can use thecommand here to specify the one that will be used when the switch reboots.Use the following command to specify the APP to be used at reboot:To do… Use the command… RemarksSpecify the APP to be usedat rebootboot boot-loader [ backup-attribute ] { file-url[ fabric ] | device-name } RequiredUpgrading the Boot ROMYou can use the Boot ROM program saved in the Flash memory of the switch to upgrade the runningBoot ROM. With this command, a remote user can conveniently upgrade the Boot ROM by uploadingthe Boot ROM to the switch through FTP and running this command. The Boot ROM can be used whenthe switch restarts.Use the following command to upgrade the Boot ROM:To do… Use the command… RemarksUpgrade the Boot ROM boot bootrom { file-url | device-name } RequiredEnabling Auto Power Down on an Ethernet PortWhen auto power down is enabled on an Ethernet port, if the port is not connected to another port, or ifthe peer port is shut down, the Ethernet port automatically enters the power save state, so as to lowerthe power consumption of the switch.Follow these steps to enable auto power down on an Ethernet port:To do… Use the command… RemarksEnter system view system-view —Enter Ethernet port view interface interface-typeinterface-number —Enable auto power down on theEthernet port port auto-power-down RequiredDisabled by default.
