When you enter the configuration replace file command, the system compares the running configuration and the specified replacement configuration file. The configuration replace file command performs the following actions:
•Preserves all commands present in both the replacement configuration file and the running configuration.
•Removes commands from the running configuration that are not present in the replacement configuration file.
•Applies the commands from the replacement configuration file that are not present in the running configuration.
•Applies the commands from the replacement configuration file that have different configurations in the running configuration.
Configuration task listComplete these tasks to configure the configuration rollback:
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| Use either approach |
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Before the running configuration is saved manually or automatically, the file path and filename prefix must be configured. After that, the system saves the running configuration with the specified filename (filename prefix_serial number.cfg) to the specified path. The filename of a saved configuration file is like 20080620archive_1.cfg, or 20080620archive_2.cfg. The saved configuration files are numbered automatically, from 1 to 1,000 (with an increment of 1). If the serial number reaches 1,000, it restarts from
1.If you change the path or filename prefix, or reboot the switch, the saved file serial number restarts from 1, and the system recounts the saved configuration files. If you change the path of the saved configuration files, the files in the original path become common configuration files, and are not processed as saved configuration files, and are not displayed when you view saved configuration files.
The number of saved configuration files has an upper limit. After the maximum number of files is saved, the system deletes the oldest files when the next configuration file is saved.
Follow these steps to configure parameters for saving the running configuration:
To do… | Use the command… | Remarks |
Enter system view | — | |
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Configure the path and filename | archive configuration location |
prefix for saving configuration | directory |
files |
Required
By default, the path and filename for saving configuration files are not configured, and the system does not save the configuration file at a specified interval.
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