3Com Corporation

Paul O'Keeffe

John F Hickey

Kevin Jennings

Daniel M O'Keeffe

Kevin Loughran

Jerome Nolan

Mark A Hughes

Michael Joseph Gleeson

Controlling the allocation of priority for data packets within a multi-port switch includes detecting the commencement of an HTTP message; enabling the storage of an identification of the source port on which that message was received by the switch; finding correspondence between destination data of packets and the said source port; and adjusting a priority allotted to said packets in response to the correspondence. The adjustment of priority preferably increases the priority of packets forwarded to said the port relative to priority allotted packets received at the source port and thereby allots asymmetric priority to traffic between a server and a client.

Allocation of asymmetric priority to traffic flow in network switches

A trie searching technique employs entries each including a pointer to the next block in the search and a status indication and also including start and end indexes which define a selected section of the trie key identifying an entry within the block identified by the pointer. Thereby the program for selection of the search key is defined by the trie entries themselves, enabling a general variety of search selections and jumps to avoid any unnecessary parts of the trie search key.

Method and apparatus for searching databases employing a trie search structure

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Dublin, Ireland

Paul O'Keeffe