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. 16, 2018

Filed:

Dec. 13, 2016
Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventor:

Tai-Hua Hsiao, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/751 (2013.01); H04L 12/715 (2013.01); H04L 12/703 (2013.01); H04L 12/707 (2013.01); H04L 12/761 (2013.01);
U.S. Cl.
CPC ...
H04L 45/02 (2013.01); H04L 45/16 (2013.01); H04L 45/22 (2013.01); H04L 45/28 (2013.01); H04L 45/64 (2013.01);
Abstract

A tree recovery method for a software-defined network (SDN) adapted to an SDN controller is provided. The tree recovery method includes: establishing topology information based on a current SDN topology and storing the topology information in a storage of the SDN controller; receiving a failure message reporting a failure link of the SDN, a plurality of network nodes of the topology information are classified into at least one losing nodes and at least one remaining node according to the failure link; and calculating and linking the at least one losing node to the at least one remaining node by using the topology information stored in the storage.


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