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:
Jun. 12, 2018
Filed:
Jan. 21, 2015
Applicant:
Nec Corporation, Minato-ku, Tokyo, JP;
Inventor:
Fei Gao, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/56 (2006.01); H04L 12/753 (2013.01); H04L 12/64 (2006.01); H04L 12/751 (2013.01); H04L 12/721 (2013.01); H04L 12/705 (2013.01); H04L 12/715 (2013.01);
U.S. Cl.
CPC ...
H04L 45/48 (2013.01); H04L 12/6418 (2013.01); H04L 45/02 (2013.01); H04L 45/04 (2013.01); H04L 45/12 (2013.01); H04L 45/18 (2013.01); H04L 45/64 (2013.01);
Abstract
An adjacent domain specification meansspecifies an adjacent controller domain to an own controller domain. A loop solution meanscreates a communication tree for avoiding a loop configuration present in communication paths with the adjacent controller domain. A topology specification meansspecifies a network topology between the controller domains. A communication control meanscalculates an optimum path based on the communication tree by use of the network topology, and controls communication from a communication device connected to each OpenFlow switch.