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:
Mar. 24, 2015
Filed:
Oct. 11, 2012
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/707 (2013.01); H04L 12/26 (2006.01); H04L 12/703 (2013.01); H04L 12/753 (2013.01); H04L 12/761 (2013.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04L 43/0817 (2013.01); H04L 45/28 (2013.01); H04L 45/48 (2013.01); H04L 45/16 (2013.01);
Abstract
A method of performing protection switching in a network including a first node and a plurality of second nodes that are connected to the first node is provided. The first node counts the number of obstacles that have occurred in a plurality of paths that are connected between the plurality of second nodes, and if the counted number is smaller than a predetermined threshold value, the first node performs protection switching per leaf. Alternatively, if the counted number is equal to or larger than a predetermined threshold value, the first node performs protection switching per tree.