A networking system and automatic method in a networking system comprising at least one switching device and a plurality of at least one end-station interconnected with the at least one switching device, wherein the at least one switching device and at least one end-station are interconnected in...http://www.google.de/patents/US5751967?utm_source=gb-gplus-sharePatent US5751967 - Method and apparatus for automatically configuring a network device to support a virtual network 
