Remove Features Configured Using FlexConfig

If you decide you need to remove a set of configuration commands you configured using FlexConfig, you might need to manually remove that configuration. Unassigning the FlexConfig policy from a device might not remove all of the configuration.

To manually remove the configuration, you create new FlexConfig objects to clear or negate the configuration commands.

Before you begin

To determine if you need to manually remove some or all of the configuration generated by an object:

Examine the configuration preview, as described in Preview the FlexConfig Policy. If the ###CLI generated from managed features ### section contains the clear or negate commands to remove all of the commands in the FlexConfig object, then you can simply remove the object from the FlexConfig policy, save, and redeploy.
Remove the object from the FlexConfig policy, save the change, then preview the configuration again. If the ###CLI generated from managed features ### section still does not include the required clear or negate commands, you must follow this procedure to manually remove the configuration.

Procedure

Step 1	Choose Objects > Object Management and create the FlexConfig Objects to clear or negate the configuration commands. If a feature has a clear command that can remove all configuration settings, then use that command. For example, the predefined ISIS_Unconfigure_All object contains a single command that removes all ISIS-related configuration commands: `clear configure router isis` If there is not a clear command for the feature, you need to use the no form of each command you want to remove. For example, the predefined Sysopt_basic_negate object removes the commands configured through the predefined Sysopt_basic object. `no sysopt traffic detailed-statistics no sysopt connection timewait` You would typically configure a FlexConfig object that removes configurations as a prepended, deploy once object.
Step 2	Choose Devices > FlexConfig and create a new FlexConfig policy or edit the existing policy. If you want to preserve the FlexConfig policy that deploys the configuration commands, create a new policy specifically for negating the commands, and assign the devices to the policy. Then, add the new FlexConfig objects to the policy. If you want to completely remove the FlexConfig configuration objects from all devices, you can simply delete those commands from the existing FlexConfig policy and replace them with the objects that negate the configuration.
Step 3	Click Save to save the FlexConfig policy.
Step 4	Click Preview Config and verify that the clear and negation commands are generating correctly.
Step 5	Choose Deploy > Deployment in the menu bar, select the device, and click Deploy. Wait for deployment to complete.
Step 6	Verify that the commands were removed. View the running configuration on the device to confirm that the commands are removed. For more detailed information, see Verify the Deployed Configuration.
Step 7	While editing the FlexConfig policy, click Policy Assignments and remove the device. Optionally, remove the FlexConfig Objects from the policy. Assuming that the FlexConfig policy simply removes the unwanted configuration commands, there is no need to keep the policy assigned to the device after the removal is complete. However, if the FlexConfig policy retains options that you still want configured on the device, remove the negation objects from the policy. They are no longer needed.