Managing Images and Files 337What Methods Are Supported for File Management?You can use any of the following protocols to download files from a remotesystem to the switch or to upload files from the switch to a remote system:• TFTP• SFTP• SCP• FTP• HTTP (Web only)• HTTPS (Web only)What Factors Should Be Considered When Managing Files?Uploading and Downloading FilesTo use TFTP, SFTP, SCP, or FTP for file management, you must provide theIP address of the remote system that is running the appropriate server (TFTP,SFTP, SCP or FTP). Make sure there is a route from the switch to the remotesystem. You can use the ping command from the CLI to verify that a routeexists between the switch and the remote system.If you are downloading a file from the remote system to the switch, be sure toprovide the correct path to the file and the correct file name.Managing ImagesWhen you download a new image to the switch, it overwrites the backupimage, if it exists. To use the new image, you must activate it and reload theswitch. The image that was previously the active image becomes the backupimage after the switch reloads. If you upgrade to a newer image and find thatit is not compatible with your network, you can revert to the original image.If you activate a new image and reload the switch, and the switch is unable tocomplete the boot process due to a corrupt image or other problem, you canuse the boot menu to activate the backup image. You must be connected tothe switch through the console port to access the boot menu. The image filesmay contain firmware for the PHY processors on the switch. The PHYfirmware may be updated to the firmware version supported by the switchfirmware during the boot process or, in the case of switches that support thehot swap of cards, when the card is inserted into the switch.