A switch for use in a communications system having multiple local area networks interconnected by multiple switches so as to be configurable into different types of virtual local area networks includes first and second communication ports. The first communication port is connected directly to a local...http://www.google.es/patents/US6526052?utm_source=gb-gplus-sharePatente US6526052 - Virtual local area networks having rules of precedence
Virtual local area networks having rules of precedence