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:
Nov. 17, 2015
Filed:
May. 12, 2009
Applicants:
Jean-louis Le Roux, Lannion, FR;
Mohamad Chaitou, Paris, FR;
Inventors:
Jean-Louis Le Roux, Lannion, FR;
Mohamad Chaitou, Paris, FR;
Assignee:
Orange, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/18 (2006.01); H04L 12/703 (2013.01); H04L 12/753 (2013.01); H04L 12/723 (2013.01);
U.S. Cl.
CPC ...
H04L 12/1868 (2013.01); H04L 45/28 (2013.01); H04L 45/48 (2013.01); H04L 45/50 (2013.01);
Abstract
The invention relates to a technique for protecting a point-to-multipoint primary tree in a connected mode communications network set up from a primary root node to leaf nodes in the event of a fault affecting the primary root node by means of a back-up tree between a back-up root node and at least one merge node, said at least one merge node belonging to a branch of the primary tree coming from the primary root node. A merge node executes the following steps: