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:
Feb. 22, 2022

Filed:

May. 28, 2019
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventor:

Aiko Oi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 1/22 (2006.01); G06F 9/455 (2018.01); H04L 41/5041 (2022.01); H04L 43/16 (2022.01); H04L 45/28 (2022.01);
U.S. Cl.
CPC ...
H04L 1/22 (2013.01); G06F 9/45558 (2013.01); H04L 41/5045 (2013.01); H04L 43/16 (2013.01); H04L 45/28 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45595 (2013.01);
Abstract

Implementations are directed to designing a redundant configuration for a virtualized network function with cost efficiency while improving reliability of entire service chain. A service chain design apparatus includes a redundancy target VNF determining unit that defines, as importance of each VNF, at least one of the number of service chains using the VNF or the number of accommodated users in the service chains using the VNF, and determines a VNF having high importance as a redundancy target VNF, and a redundancy determining unit that determines, when importance of the redundancy target VNF determined by the redundancy target VNF determining unit exceeds a predetermined threshold, the redundancy target VNF having the importance exceeding the predetermined threshold as a redundancy execution VNF.


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