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:
Oct. 07, 2008
Filed:
Nov. 19, 2004
Jintae OH, Daejeon, KR;
Seung Won Shin, Daejeon, KR;
Ki Young Kim, Daejeon, KR;
Jong Soo Jang, Daejeon, KR;
Sung Won Sohn, Daejeon, KR;
Jintae Oh, Daejeon, KR;
Seung Won Shin, Daejeon, KR;
Ki Young Kim, Daejeon, KR;
Jong Soo Jang, Daejeon, KR;
Sung Won Sohn, Daejeon, KR;
Abstract
An apparatus and method for performing packet header lookup based on sequential lookup is provided. A header analyzer separates a header from a packet received via a network and outputs a lookup sequence. A unit lookup unit looks up matching the header combination rules with each field to be analyzed and input from the header analyzer based on the lookup sequence input from the header analyzer and outputs a match signal and a match address. A rule combination memory stores identification information for the header combination rules. A sequence combination memory stores lookup sequence information and sequence combination information. A rule combination unit generates match results based on the match signal input from the unit lookup unit and data read from the rule combination memory and the sequence combination memory.