A multi-layer switch search engine architecture is provided. According to one aspect of the present invention, a switch fabric includes a search engine, and a packet header processing unit. The search engine may be coupled to a forwarding database memory and one or more input ports. The search engine...http://www.google.se/patents/US5938736?utm_source=gb-gplus-sharePatent US5938736 - Search engine architecture for a high performance multi-layer switch element
