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. 06, 2016
Filed:
Jul. 19, 2013
Applicant:
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Inventors:
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/721 (2013.01); H04L 12/703 (2013.01); H04L 12/707 (2013.01); H04L 12/723 (2013.01);
U.S. Cl.
CPC ...
H04L 41/0668 (2013.01); H04L 45/12 (2013.01); H04L 45/22 (2013.01); H04L 45/28 (2013.01); H04L 45/50 (2013.01);
Abstract
A method is implemented by a network element or controller for determining a backup path for a fast reroute process to be utilized in response to a network event invalidating a primary path to a destination node. The method identifies at least one intermediate node that has a backup loop free alternative (LFA) path to a destination node in a network where no path meeting LFA conditions can be found for a point of local repair (PLR).