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:
Jan. 31, 2006
Filed:
Apr. 09, 2001
Tutomu Murase, Tokyo, JP;
Tutomu Murase, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A cache table management device for raising the cache hit probability for entries inserted in groups between a forwarding tableand cache. A forwarding tablestores the priority level of entries inserted and extracted in a cache. A packet processing circuitextracts the destination address from the received packet, searches the packet using the destination address, and searches the forwarding table if no hits occur. The hit databasestores the contents of the forwarding table for all forwarding table entries, as well as rating values for the cache usage status. An entry selection devicerefers to the hit database when an entry must be added or deleted between the forwarding table and the cache, and selects the corresponding entry group. That determination is made utilizing typical values for attributes of the priority level such as the average bit rate of each entry group.