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. 09, 2015
Filed:
Feb. 22, 2012
Applicants:
Anurag Prakash, Noida, IN;
Mohit Chhillar, Delhi, IN;
Marian Trnkus, Chevy Chase, MD (US);
Inventors:
Assignee:
Ciena Corporation, Hanover, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 14/00 (2006.01); H04J 1/16 (2006.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04J 14/0269 (2013.01); H04J 14/0268 (2013.01);
Abstract
A method and system of determining a new path through an optical network from a source node to a destination node when a link in an original path fails are disclosed. When a fault on a link is detected, adjoint weights are assigned to each operational link for each node on the original path. A connection cost is determined for each node based on the adjoint weights of the links connected to the node. A new path through the optical network is determined based at least in part on the adjoint weights and the connection costs.