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:
Apr. 22, 2003
Filed:
Aug. 11, 1999
Ryo Nakamura, Yokohama, JP;
Masao Nakayama, Yokohama, JP;
Kouichi Asao, Yokohama, JP;
Daisuke Okabe, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a communication node apparatus comprising a plurality of line interfaces each having a cache memory with a sub routing table formed therein, and a route management unit having a main routing table, each of the line interfaces is provided with a function of detecting a disconnection flag included in a received packet and deleting an unnecessary routing information entry from the sub routing table, and a function of registering a routing information entry as a high priority entry if a connection establishment flag is set to a received packet when the routing information entry is downloaded from the main routing table to the sub routing table upon reception of the packet.