USPC....................... 370/255,370/395.21: 370/465 transmitting commands. The present
invention may be imple (58) Field of Classification Search mented without requiring CPU …

Fleischner St., Portland, OR (US) 97229 2002/0163909 A1 11/2002 Sarkinen et al.(*) Notice:
Subject to any disclaimer, the term of this 2003/0167390 A1* 9, 2003 Gorman et al …

0002 High speed, or high throughput, network packet filtering (or “processing) is a common
network data security feature for a computer (“machine') that is connected to a network, such …

This invention pertains to packet filtering. More Specifically, it relates to a use of Small,
optimized Sequences of binary 5-tuples representing filter rules to achieve Space efficient …

The present invention is directed to a method and System that provides accelerated data
communications for networked Systems and has been found to be particularly useful for …

US PATENT DOCUMENTS 5,343,471 A 8/1994 Cassagnol................... 370/401 5.426, 378 A
6/1995 Ong............................ 326/39 5.426, 379 A* 6/1995 Trimberger.................. 326/39 …

US7519995B2 - Programmable hardware for deep packet filtering - Google Patents
US7519995B2 - Programmable hardware for deep packet filtering - Google Patents …

(57) ABSTRACT A packet data filter which Stores ordered rules and Sequen tially applies
the rules to received data packets to determine the disposition of the data packet. The packet …

US8265060B2 - Packet data filtering - Google Patents US8265060B2 - Packet data filtering -
Google Patents Packet data filtering Download PDF Info Publication number US8265060B2 …

A packet filter (2500) for incoming communications packets includes extractor circuitry
(2510) operable to extract data from a packet, and packet processor circuitry (2520) …