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:
Sep. 02, 2003
Filed:
Jun. 07, 2001
Balakrishnan Ramakrishnan, Sunnyvale, CA (US);
Riverstone Networks, Inc., Santa Clara, CA (US);
Abstract
Updating a content addressable memory (CAM) involves identifying a new entry that is to be added to the CAM, identifying a free location in the CAM that is the fewest number of prefix levels away from the prefix level of the new entry, moving an existing CAM entry into the free location to create a newly freed location that is a fewer number of prefix levels away from the prefix level of the new entry, repeating the move process until a free location is created at the desired prefix level of the new entry, and then adding the new entry into the newly freed location. The specific algorithm for moving entries to free a location in the desired prefix level is a function of whether the prefix level of the first free location is above or below the prefix level of the new entry.