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:
Oct. 31, 2006
Filed:
Dec. 17, 2001
Applicants:
Makoto Nakamura, Tokyo, JP;
Tomoki Murai, Tokyo, JP;
Inventors:
Makoto Nakamura, Tokyo, JP;
Tomoki Murai, Tokyo, JP;
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plurality of relay apparatuses are provided within an IP network of an ISP, and these relay apparatuses are connected to each other by logical tunnels. Each relay apparatus determines the type of a destination address at the Layer 2 level from the data loaded from a host device. When the type is for broadcast, the relay apparatus identifies a tunnel as a relay destination from the data contents set in correlation with destination addresses at the Layer 3 level, and transmits the data only to the relevant relay destination tunnel.