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:
Dec. 26, 2017

Filed:

Apr. 07, 2016
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Keiichi Nakatsugawa, Shinagawa, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/26 (2006.01); H04L 12/703 (2013.01);
U.S. Cl.
CPC ...
H04L 41/0668 (2013.01); H04L 43/0811 (2013.01); H04L 43/10 (2013.01); H04L 45/28 (2013.01); H04L 43/026 (2013.01);
Abstract

A switch apparatus includes a first controller, a second controller, and a plurality of switch devices, the plurality of switch devices being configured to receive a packet and store a flow table which indicates a method of handling a process of the received packet, wherein the first controller informs a first content of the flow table to the plurality of switch devices, a first switch device detects a communication error between the first switch device and the first controller, the first switch device informs a second switch device of the communication error, and the second switch device changes a connecting destination from the first controller to the second controller.


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