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:
May. 01, 2018

Filed:

Jun. 27, 2016
Applicant:

Ciena Corporation, Hanover, MD (US);

Inventors:

Jie Hu, Santa Rosa, CA (US);

Marc Holness, Ottawa, CA;

Asheesh Jadav, Santa Clara, CA (US);

Somen Bhattacharya, Santa Clara, CA (US);

Assignee:

Ciena Corporation, Hanover, MD (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/00 (2006.01); H04L 12/707 (2013.01); H04L 12/46 (2006.01); H04L 12/24 (2006.01); H04L 12/64 (2006.01); H04L 7/00 (2006.01); H04L 12/703 (2013.01); H04L 12/723 (2013.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04L 7/0004 (2013.01); H04L 12/462 (2013.01); H04L 12/4633 (2013.01); H04L 12/6418 (2013.01); H04L 41/0663 (2013.01); H04L 41/0816 (2013.01); H04L 45/28 (2013.01); H04L 45/50 (2013.01);
Abstract

A packet network linear protection method, a network, and a node in a dual or multi-home configuration include designating each of a plurality of home nodes in the dual or multi-home configuration as a working home or a protect home; designating each link between each of the plurality of home nodes and an end node in the dual or multi-home configuration as active or standby; operating a protection switch state machine based on an associated linear protection protocol at each of the plurality of home nodes and the end node; communicating protection messages to each of the plurality of home nodes from the end node; and communicating protection states in an associated protection switch state machine by each of the plurality of home nodes to other home nodes and to the end node.


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