Using different methods to save the running configuration
When you save the running configuration to a configuration file, you can specify the file as a next-startup configuration file.
If you are specifying the file as a next-startup configuration file, use one of the following methods for saving the configuration:
Fast mode—Use the save command without the safely keyword. In this mode, the device directly overwrites the target next-startup configuration file. If a reboot or power failure occurs during this process, the next-startup configuration file is lost. You must specify a new startup configuration file after the device reboots (see "Specifying a next-startup configuration file").
Safe mode—Use the save command with the safely keyword. Safe mode is slower than fast mode, but more secure. In safe mode, the system saves the configuration in a temporary file and starts overwriting the target next-startup configuration file after the save operation is complete. If a reboot or power failure occurs during the save operation, the next-startup configuration file is still retained.
Use the safe mode if the power source is not reliable or you are remotely configuring the device.
To save the running configuration, perform one of the following tasks in any view:
Task | Command | Remarks |
---|---|---|
Save the running configuration to a configuration file without specifying the file as a next-startup configuration file. | save file-url [ all | slot slot-number ] | N/A |
Save the running configuration to a configuration file and specify the file as a next-startup configuration file. | save [ safely ] [ backup | main ] [ force ] | This command saves the configuration to all IRF member devices. As a best practice, specify the safely keyword for reliable configuration saving. If you specify only the safely keyword, the command saves the configuration to the main startup configuration file. If the force keyword is specified, the command saves the configuration to the existing next-startup configuration file. If the force keyword is not specified, the command allows you to specify a new next-startup configuration file. |