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. 17, 2016

Filed:

Nov. 08, 2013
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Kenji Hikichi, Kawasaki, JP;

Shinya Kano, Inagi, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/741 (2013.01); H04L 12/733 (2013.01);
U.S. Cl.
CPC ...
H04L 45/126 (2013.01); H04L 45/54 (2013.01);
Abstract

A transfer device that is installed in a unit network that includes a gateway includes a sending/receiving unit that sends/receives a frame to/from a transfer device that is installed in another unit network in a network that includes the unit network, a determining unit that determines, based on destination address or source address in a packet in the frame sent/received by the sending/receiving unit, whether the packet is related to communication between an internal device that is installed in the network and an external device that is installed outside the network, and a notifying unit that notifies, when the determining unit determines that the packet is related to the communication between the internal device and the external device, the external device of an instruction to switch a gateway.


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