Defaults a vrrp instance from an interface

        Note:
            This method will attempt to default the vrrp on the node's
            operational config. Default results in the deletion of the
            specified vrrp . If the vrrp does not exist on the
            interface then this method will not perform any changes
            but still return True

        Args:
            interface (string): The interface to configure.
            vrid (integer): The vrid number for the vrrp to be defaulted.

        Returns:
            True if the vrrp could be defaulted otherwise False (see Node)

def default(self, interface, vrid):
        """Defaults a vrrp instance from an interface

        Note:
            This method will attempt to default the vrrp on the node's
            operational config. Default results in the deletion of the
            specified vrrp . If the vrrp does not exist on the
            interface then this method will not perform any changes
            but still return True

        Args:
            interface (string): The interface to configure.
            vrid (integer): The vrid number for the vrrp to be defaulted.

        Returns:
            True if the vrrp could be defaulted otherwise False (see Node)

        """

        vrrp_str = "default vrrp %d" % vrid
        return self.configure_interface(interface, vrrp_str)