Operation Manual – System Maintenance and DebuggingH3C S3100 Series Ethernet Switches Chapter 4 Device Management4-6Table 4-10 Display the operating status of the device managementOperation Command DescriptionDisplay the APP to be adoptedat next startupdisplay boot-loader [ unitunit-id ]Display the module type andoperating status of each boarddisplay device [ manuinfo | unitunit-id ]Display CPU usage of a switch display cpu [ unit unit-id ]Display memory usage of aswitch display memory [ unit unit-id ]Display the operating status ofthe fan display fan [ unit unit-id [ fan-id ] ]Display the environmenttemperature of the switch display environmentDisplay the operating status ofthe power supplydisplay power [ unit unit-id[ power-id ] ]Display system diagnosticinformation or save systemdiagnostic information to a filewith the extension .diag intothe Flash memorydisplay diagnostic-informationDisplay enabled debugging onthe switchdisplay debugging [ unit unit-id ][ interface interface-typeinterface-number ][ module-name ]You canexecute thedisplaycommand inany view.4.4 Remote Switch APP Upgrade Configuration ExampleI. Network requirementsTelnet to the switch from a PC remotely and download applications from the FTP serverto the Flash memory of the switch. Update the switch software by using the devicemanagement commands through CLI.The switch acts as the FTP client, and the remote PC serves as both the configurationPC and the FTP server.Perform the following configuration on the FTP server.z Configure an FTP user, whose name is switch and password is hello. Authorizethe user with the read-write right on the directory Switch on the PC.z Make configuration so that the IP address of a VLAN interface on the switch is1.1.1.1, the IP address of the PC is 2.2.2.2, and the switch and the PC is reachableto each other.