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Specifying a startup configuration file to be used at the next system startup).
Setting configuration rollback
Configuration rollback allows you to revert to a previous configuration state based on a specified
configuration file. The specified configuration file must be a valid .cfg file generated by using either the
backup function (manually or automatically) or save.
If a configuration file is generated by another device, the configuration file must comply with the format of the
configuration file on the current device. HP recommends using the configuration file that is generated by
using the backup function (manually or automatically).
Configuration rollback can be applied in the following situations:
• Running configuration error. Rolling back the running configuration to a correct one is needed.
• The application environment has changed and the device has to run in a configuration state based on
a previous configuration file without being rebooted.
Before setting configuration rollback, perform the following steps:
1. Specify the filename prefix and path for saving the running configuration.
2. Save the running configuration with the specified filename (filename prefix + serial number) to the
specified path. The running configuration can be saved automatically or manually.
When you enter configuration replace file 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.
The running configuration is only saved to the master, and only the configuration on the master can be rolled
back. However, the related configuration is synchronized to the subordinate switches to ensure the rollback
of the configuration after the master is changed.
Configuration task list
Task Remarks
Configuring parameters for saving the running configuration Required
Enabling automatic saving of the running configuration
Required
Use either approach
Manually saving the running configuration
Setting configuration rollback Required
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