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.:
Date of Patent:
Aug. 19, 2008
Filed:
Feb. 27, 2004
Jinoo Joung, Yongin-si, KR;
Woo-jong Park, Seoul, KR;
Guansong Zhang, Brooklyn, NY (US);
H. Jonathan Chao, Brooklyn, NY (US);
Jinoo Joung, Yongin-si, KR;
Woo-jong Park, Seoul, KR;
Guansong Zhang, Brooklyn, NY (US);
H. Jonathan Chao, Brooklyn, NY (US);
Samsung Electronics Co., Ltd., Suwon-si, KR;
Polytechnic University, Brooklyn, NY (US);
Abstract
A packet classification apparatus and method using field level tries includes a main processing part for generating and maintaining the field level tries, which organize a multi-field packet by field in a hierarchical structure for classifications; and classification engines, each of which is provided with a first classification part for performing queries and updates and processing a prefix lookup represented by an IP source/destination address lookup, and a second classification part for proceeding with classifications by corresponding field based on a result of the first classification part in order to process a range lookup belonging to the result. Accordingly, tries in the unit of a field are developed so that packet classifications for high-speed networking with excellent query performance are secured, and wherein approximately a half-million classifier rules can be processed.