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Configuration Mode Command Usage
Table of Contents
Configuration Mode Command Usage
| Where Can I Use This? | What Do I Need? |
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Use the following commands to store and apply configuration changes:
- save—Saves the candidate configuration in the non-volatile storage on the appliance. The saved configuration is retained until overwritten by subsequent save commands. Note that this command does not make the configuration active.
- commit—Applies the candidate configuration to the appliance. A committed configuration becomes the active configuration for the device.
- set—Changes a value in the candidate configuration.
- load—Assigns the last saved configuration or a specified configuration to be the candidate configuration.When exiting configuration mode without issuing the save or commit command, the configuration changes could be lost if the appliance loses power.
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Maintaining a candidate configuration and separating the save
and commit steps confers important advantages when compared with
traditional CLI architectures:
- Distinguishing between the save and commit concepts allows multiple changes to be made at the same time and reduces system vulnerability.
- Commands can easily be adapted for similar functions. For example, when configuring two Ethernet interfaces, each with a different IP address, you can edit the configuration for the first interface, copy the command, modify only the interface and IP address, and then apply the change to the second interface.
- The command structure is always consistent.
Because the candidate configuration is always unique, all authorized
changes to the candidate configuration are consistent with each
other.