A scalable bandwidth switch is formed from a smart data crossbar and a plurality of simple data crossbars in parallel. A data block that is inputted into the switch contains a header portion and a payload portion. The data block is multiplexed so that the entire header portion is inputted to a port in...http://www.google.com/patents/US5898692?utm_source=gb-gplus-sharePatent US5898692 - Scalable bandwidth digital data switch
