A router for interconnecting external devices coupled to the router. The router comprises a switch fabric and a plurality of routing nodes coupled to the switch fabric. Each routing node comprises packet processing circuitry for transmitting data packets to, and receiving data packets from, the external...http://www.google.de/patents/US20050213585?utm_source=gb-gplus-sharePatent US20050213585 - Apparatus and method for distributing forwarding table lookup operations among a plurality of microengines in a high-speed routing node