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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7239639 B1

PDFFull Text
Date of Patent:
Jul. 03, 2007

Filed:

Dec. 27, 2001

System and method for dynamically constructing packet classification rules

Applicants:

Dennis J. Cox, Round Rock, TX (US);

Alexander I. Tomlinson, Austin, TX (US);

Joseph Dempsey, Austin, TX (US);

Matthew C. Laswell, Austin, TX (US);

Scott Strentzsch, San Antonio, TX (US);

Stephen Egbert, McKinney, TX (US);

Terry G. Ahnstedt, Austin, TX (US);

Brian C. Smith, Fort Worth, TX (US);

Inventors:

Dennis J. Cox, Round Rock, TX (US);

Alexander I. Tomlinson, Austin, TX (US);

Joseph Dempsey, Austin, TX (US);

Matthew C. Laswell, Austin, TX (US);

Scott Strentzsch, San Antonio, TX (US);

Stephen Egbert, McKinney, TX (US);

Terry G. Ahnstedt, Austin, TX (US);

Brian C. Smith, Fort Worth, TX (US);

Assignee:

3Com Corporation, Marlborough, MA (US);

Attorney:

Hamilton & Terrile, LLP

Primary Examiner:

Chi Pham

Assistant Examiner:

Alexander O Boakye

Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method classifies packets with a programmably fixed network processor program and dynamically updated data structures. The network processor program selects predetermined packet field values of the packets transmitted across the network and classifies the packets by matching one or more packet field values with a data structure. New packet classifications are dynamically created by updating the data structure to associate one or more predetermined packet field values with the new packet classification. For instance, a parse tree program extracts packet header information and matches the packet header information to the data structure. A pattern tree data structure provides longest prefix matches and an ordered tree data structure provides combination matches so that classification of arbitrary Boolean combinations of extracted header fields can be formed.

Find Patent Forward Citations

Quick Actions:

Cox, Dennis. (2007). System and method for dynamically constructing packet classification rules (U.S. Patent No. 7239639). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7239639

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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