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. 09, 2010
Filed:
Feb. 27, 2006
Jean Philippe Vasseur, Dunstable, MA (US);
Stefano Novello, Concord, MA (US);
Vassilios Liatsos, Arlington, MA (US);
Jean Philippe Vasseur, Dunstable, MA (US);
Stefano Novello, Concord, MA (US);
Vassilios Liatsos, Arlington, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method, apparatus and computer program product for determining a preferred backup path to protect a point-to-multipoint label switching path is presented. A point-to-multipoint backup path is computed for each node located upstream from a branching node, the backup path originating at the node and including a set of nodes downstream from said branching node. A cost metric associated with each backup path is determined, as is a distance metric associated with each backup path. From the cost and distance metrics associated with each backup path a preferred backup path is selected using a distributed algorithm.