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:
Oct. 17, 2017

Filed:

Nov. 24, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Kazuki Hyoudou, Chofu, JP;

Yukihiro Nakagawa, Kawasaki, JP;

Takeshi Shimizu, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/45 (2006.01); H04L 12/26 (2006.01); H04L 12/935 (2013.01);
U.S. Cl.
CPC ...
H04L 43/0817 (2013.01); H04L 49/3009 (2013.01);
Abstract

A network switch, includes: a port configured to receive a packet from one of a first information processing device and a second information processing device: a processor configured to process the packet, wherein the processor performs operations of: extracting first information which is used for creating a request packet requesting a response of a first virtual machine executed by the first information processing device from the packet which is transmitted by the first virtual machine to a second virtual machine executed by the second information processing device; creating the request packet using the first information; transmitting the request packet to the first virtual machine; and determining an operation state of the first virtual machine based on if a response packet for the request packet is received from the first virtual machine.


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