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. 13, 2011
Filed:
Jan. 08, 2007
Kazuho Miki, Kokubunji, JP;
Ken'ichi Sakamoto, Tokyo, JP;
Koji Wakayama, Kokubunji, JP;
Tetsuhiko Hirata, Yokohama, JP;
Hiroaki Miyata, Yokohama, JP;
Kazuho Miki, Kokubunji, JP;
Ken'ichi Sakamoto, Tokyo, JP;
Koji Wakayama, Kokubunji, JP;
Tetsuhiko Hirata, Yokohama, JP;
Hiroaki Miyata, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An access node run as a packet switching apparatus enables IP connection services for a plurality of access methods; e.g., relatively low-speed IP connection, high-speed IP connection, and mobile network IP connection. By using this apparatus of the present invention, cost can be reduced and upgrading to advanced access networks and access services is easily carried out. Provision of the above access nodes implements upgrade-type network services common for diverse protocols. Each access node retains a pathfinding table to which input port, input tunnel identifier and input session identifier entries in a set are registered per session. When routing a packet, by looking up the set of these entries matching with the packet, the associated output port, output tunnel identifier, and output session identifier are obtained. After processing for the packet, appropriate for one of the plurality of access methods and network services, the node forwards the packet over the routed path.