1-10A configuration file must use .cfg as its extension name and the startup configuration file must be savedunder the root directory of the storage medium.Backing Up the Startup Configuration FileThe backup function allows you to copy the startup configuration file to be used at the next systemstartup from the device to the TFTP server for backup.The backup operation backs up the startup configuration file to the TFTP server for devices supportingmain/backup startup configuration file.Follow the step below to back up the startup configuration file to be used at the next system startup:To do… Use the command… RemarksBack up the configuration file tobe used at the next systemstartup to the specified TFTPserverbackup startup-configurationto dest-addr [dest- filename ]RequiredAvailable in user viewBefore the backup operation, you should:z Ensure that the server is reachable, the server is enabled with TFTP service, and the client haspermission to read and write.z Use the display startup command (in user view) to see whether you have set the startupconfiguration file. If the file is set as NULL or does not exist, the backup operation will fail.Deleting the Startup Configuration File for the Next StartupYou can delete the startup configuration file to be used at the next system startup using commands. Youcan choose to delete either the main or backup startup configuration file. However, in the case that themain and backup startup configuration files are the same, if you perform the delete operation for once,the system will not delete the configuration file but only set the corresponding startup configuration file(main or backup, according to which one you specified in the command) to NULL.You may need to delete the startup configuration file for the next startup for one of these reasons:z After you upgrade system software, the existing configuration file does not match the new systemsoftware.z The configuration file is corrupted (often caused by loading a wrong configuration file).After the startup configuration file is deleted, the system will use the null configuration when the devicereboots.Follow the step below to delete the startup configuration file for the next startup:
