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:
Dec. 26, 2006
Filed:
May. 02, 2002
Sang Yoon OH, Daejeon, KR;
Bong Wan Kim, Seoul, KR;
Bin Yeong Yoon, Daejeon, KR;
Lee Heyung Sub, Daejeon, KR;
Lee Hyeong Ho, Daejeon, KR;
Sang Yoon Oh, Daejeon, KR;
Bong Wan Kim, Seoul, KR;
Bin Yeong Yoon, Daejeon, KR;
Lee Heyung Sub, Daejeon, KR;
Lee Hyeong Ho, Daejeon, KR;
Abstract
A method for managing a content addressable memory (CAM) look-up table using the longest prefix matching (LPM) is provided. The method includes providing a pair of pointers per every band of data having the same prefix in length, wherein one of the pair of pointers stores the address of data having the lowest address in each band of data, and the other pointer of the pair of pointers stores the next higher address of data having the highest address in each band of data; and making a space in which data is to be added in the CAM look-up table by moving data having the addresses stored in the pair of pointers provided per each band of data that has a shorter prefix length than the prefix length of the data to be added, when data is added to the CAM look-up table. According to the method, it is possible to easily and efficiently add new data into the look-up table of the CAM.