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:
Sep. 05, 2017
Filed:
Nov. 19, 2015
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Assignee:
Ciena Corporation, Hanover, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/27 (2013.01); H04B 10/079 (2013.01); H04L 12/24 (2006.01); H04J 14/08 (2006.01);
U.S. Cl.
CPC ...
H04B 10/0793 (2013.01); H04B 10/0791 (2013.01); H04B 10/27 (2013.01); H04J 14/08 (2013.01); H04L 41/12 (2013.01);
Abstract
Systems and methods providing resiliency between a server layer and a client layer include determining a minimal spanning tree in the client layer; determining a Steiner tree in the server layer based on vertices associated with the minimal spanning tree in the client layer; and determining one or more resiliency paths in the client layer based on the minimal spanning tree and the Steiner tree, wherein the one or more resiliency paths are added to the minimal spanning tree in the client layer based on potential failures in the Steiner tree. For example, the server layer is an optical layer and the client layer is a Time Division Multiplexing (TDM) layer.