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.

Date of Patent:
Dec. 05, 2017

Filed:

Aug. 19, 2016
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Daniele Ceccarelli, Sollentuna, SE;

Diego Caviglia, Savona, IT;

Francesco Fondelli, Calcinaia, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); H04L 12/437 (2006.01); H04L 12/707 (2013.01); H04L 12/703 (2013.01); H04L 12/723 (2013.01);
U.S. Cl.
CPC ...
H04L 12/437 (2013.01); H04L 45/22 (2013.01); H04L 45/28 (2013.01); H04L 45/50 (2013.01); H04L 45/507 (2013.01);
Abstract

In a connection-oriented network a point-to-multipoint working path is established between a source node and a plurality of destination nodes using a number of working path intermediate nodes. A point-to-multipoint protection path is established for possible points of failure in the working path. Each protection path connects a first working path intermediate node upstream of a point of failure and destination nodes of the working path downstream of the first working path intermediate node. The point-to-multipoint protection path only connects to destination nodes of the working path and working path intermediate nodes which must be transited to reach the destination nodes of the working path.


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