Method for automatically configuring network devices (34, 36, 38, 40, 104, 108) of a data network according to a desired device configuration, • wherein the data network comprises at least two configurable network devices, • wherein configuration parameters are deployable over the data network to the configurable network devices, • wherein the configurable network devices are configurable from a respective initial configuration state to a respective desired configuration state by deploying, characterized in that • at least one of the configurable network devices is from a first type of network devices, whose configuration requires a pre-defined series of at least one intermediate configuration state inbetween the initial configuration state and the desired configuration state and • in that a central deployment network device (32, 102) with a central deployment software-tool running thereon is foreseen which is performing or initiating the following steps: • determining the actual state of each of the configurable network devices, • comparing them with the respective desired states of the configurable network devices, • in case of a difference determining at least one respective subsequent intermediate or respective subsequent desired configuration state for at least one of the configurable network devices wherein the actual states of the configurable network devices are considered, • deploying the respective configuration parameters for the respective subsequent configuration state (16, 18) to the respective configurable network device, • repeating until all configurable network devices are configured as desired. • wherein the data network comprises at least two configurable network devices, • wherein configuration parameters are deployable over the data network to the configurable network devices, • wherein the configurable network devices are configurable from a respective initial configuration state to a respective desired configuration state by deploying, • at least one of the configurable network devices is from a first type of network devices, whose configuration requires a pre-defined series of at least one intermediate configuration state inbetween the initial configuration state and the desired configuration state and • in that a central deployment network device (32, 102) with a central deployment software-tool running thereon is foreseen which is performing or initiating the following steps: • determining the actual state of each of the configurable network devices, • comparing them with the respective desired states of the configurable network devices, • in case of a difference determining at least one respective subsequent intermediate or respective subsequent desired configuration state for at least one of the configurable network devices wherein the actual states of the configurable network devices are considered, • deploying the respective configuration parameters for the respective subsequent configuration state (16, 18) to the respective configurable network device, • repeating until all configurable network devices are configured as desired. • determining the actual state of each of the configurable network devices, • comparing them with the respective desired states of the configurable network devices, • in case of a difference determining at least one respective subsequent intermediate or respective subsequent desired configuration state for at least one of the configurable network devices wherein the actual states of the configurable network devices are considered, • deploying the respective configuration parameters for the respective subsequent configuration state (16, 18) to the respective configurable network device, • repeating until all configurable network devices are configured as desired.