Removing a Statement

To delete a statement or identifier, use the delete configuration mode command. Deleting a statement or an identifier effectively "unconfigures" the functionality associated with that statement or identifier, returning that functionality to its default condition. When you delete a statement, the statement and all its subordinate statements and identifiers are removed from the configuration.

delete <statement-path> <identifier> 

To delete the entire hierarchy starting at the current hierarchy level, do not specify a statement or an identifier in the delete command:

[edit]

user@host# delete 

Delete everything under this level? [yes, no] (no) ?

    Possible completions:

        no            Don't delete everything under this level

        yes            Delete everything under this level

Delete everything under this level? [yes, no] (no)