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:
Feb. 01, 2011
Filed:
Jul. 08, 2003
Kenichi Sakamoto, Tokyo, JP;
Kazuyoshi Hoshino, Fujisawa, JP;
Koji Wakayama, Kokubunji, JP;
Shiro Tanabe, Hidaka, JP;
Noboru Endo, Kodaira, JP;
Kenichi Sakamoto, Tokyo, JP;
Kazuyoshi Hoshino, Fujisawa, JP;
Koji Wakayama, Kokubunji, JP;
Shiro Tanabe, Hidaka, JP;
Noboru Endo, Kodaira, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method serves to compose a VPN (Virtual Private Network) over a plurality of networks, each of which is managed by a different Internet Service Provider (ISP). When a packet with a first capsule header used for composing a VPN in a first ISP network is transmitted to a second ISP network, a route for outputting the packet to the second ISP network is determined based on the information both in the capsule header and in the IP header. In addition, a second capsule header used for composing a VPN in the second ISP network is determined based on the above information.