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:
Jul. 28, 2026

Filed:

Jan. 23, 2023
Applicant:

Ciena Corporation, Hanover, MD (US);

Inventors:

Ghulam Mustafa, Aligarh, IN;

Gagan Garg, Gurgaon, IN;

Khujasta Afreen Mohsini, New Delhi, IN;

Nilakantha Swain, Puri, IN;

Assignee:

Ciena Corporation, Hanover, MD (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 41/0604 (2022.01); H04L 41/0681 (2022.01); H04L 41/0686 (2022.01); H04L 43/0817 (2022.01);
U.S. Cl.
CPC ...
H04L 41/0609 (2013.01); H04L 41/0681 (2013.01); H04L 41/0686 (2013.01); H04L 43/0817 (2013.01);
Abstract

A network element configured to support Connectivity Fault Management (CFM) for Operation, Administration and Maintenance (OAM) includes circuitry configured to track faults in the CFM via a defect indication variable that includes multiple bits wherein each bit is one of a certain priority level of a plurality of priority levels and a reserved value, and, responsive to one or more of detection of a new fault and clearing of an existing fault, update the defect indication variable accordingly based on a corresponding priority level of the new fault or the existing fault.


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