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.

Date of Patent:
May. 27, 2008

Filed:

Aug. 05, 2002
Applicants:

Nobuo Ogasawara, Yokohama, JP;

Kenichi Sakamoto, Hachiohji, JP;

Shinichi Akahane, Hachiohji, JP;

Hiroki Yano, Hadano, JP;

Tomohiro Baba, Tachikawa, JP;

Inventors:

Nobuo Ogasawara, Yokohama, JP;

Kenichi Sakamoto, Hachiohji, JP;

Shinichi Akahane, Hachiohji, JP;

Hiroki Yano, Hadano, JP;

Tomohiro Baba, Tachikawa, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04J 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A packet routing apparatus has a routing information table comprised of a plurality of sub-tables. Each sub-table includes an entry of a first format indicative of routing information, and at least one of the sub-tables includes, in addition to the entry of the first format, an entry of a second format for designating another sub-table to be referred to. A routing processor of the packet routing apparatus refers to a sub-table designated by an input line interface. As a result, when the entry of the second format is retrieved, the routing processor executes routing of an input packet and header conversion by referring to another sub-table designated by the entry.


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