System and method for classifying network packets with...

Details System and method for classifying network packets with... System and method for classifying network packets with...

2007-02-20

2007-02-20

Nguyen, Chau (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S412000, C713S154000

Reexamination Certificate

active

10036638

ABSTRACT:
Packets are classified by content across a packet flow by sequencing packets according to packet flows through a content engine. A sequencer tracks packet flows, sending and buffering out-of-order packets to have missing packets resent. A regular expression engine determines matches of regular expressions and subexpressions with regular expressions encoded as non-deterministic finite automata with field programmable gate arrays and subexpression matches computed with a hash and determined by a hash look-up table. A tag module establishes a classification tag for a packet based on the packet's content by matching the tag with the regular expression and subexpressions of the packet.

REFERENCES:
patent: 4817080 (1989-03-01), Soha
patent: 6181699 (2001-01-01), Crinion et al.
patent: 6381242 (2002-04-01), Maher et al.
patent: 6654389 (2003-11-01), Brunheroto et al.
patent: 6781992 (2004-08-01), Rana et al.
patent: 6785677 (2004-08-01), Fritchman
patent: 6788682 (2004-09-01), Kimmitt
patent: 6850490 (2005-02-01), Woo et al.
patent: 6910134 (2005-06-01), Maher et al.
patent: 2001/0024448 (2001-09-01), Takase et al.
patent: 2002/0015496 (2002-02-01), Weaver et al.
patent: 2004/0199630 (2004-10-01), Sarkissian et al.
Amaud, Alain; “Deep Packet Classification Coprocessors”; Raqia Networks, Inc., Oct. 25, 2001.

Affiliated with

Also associated with

Rating

System and method for classifying network packets with... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for classifying network packets with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for classifying network packets with... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3863096