A system for automatically generating an object-oriented class wrapper to simplify writing of device enabling programs is disclosed. A heater heats the bursts of air to a temperature sufficient to remove the outer coating from an optical fiber, while maintaining the air isolated from the heat source. A flow obstruction may be incorporated in the shroud adjacent the edge of the disc tip. Then, each node device controls an optical switch based on the connection information on the entire optical network system obtained by the above inquiry and sets an optical path which omits the packet processing functions for layer 3 systems of the node device which the node control device controls when a cut-through setting packet is received or based on self judgment.