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:
Dec. 28, 2021
Filed:
Aug. 17, 2018
Infinera Corp., Annapolis Junction, MD (US);
Nikhil Kumar Satyarthi, Bangalore, IN;
Amit Satbhaiya, Kunadalahalli, IN;
Sanjeev Ramachandran, Manipal, IN;
Rajan Rao, Fremont, CA (US);
Baranidhar Ramanathan, Karnataka, IN;
Dileep Padala, Doddha Thogur, IN;
Dinesh Kumar Prakasam, Madurai, IN;
Infinera Corporation, San Jose, CA (US);
Abstract
A system and method is disclosed in which circuitry of a first controller of a first node on a first path within a transport network receives a first signal indicating a failure within the first path from a second controller. The first node is an end node of the first path. A first client signal failure clear signal is received from a second node upstream of the first node on the first path. The first client signal failure clear signal indicates that a non-restorable fault has been resolved such that the first path can be considered for carrying data traffic. The non-restorable fault is a failure at the source. Subsequent to receiving the first signal indicating the failure within the first path, a backward defect indication clear signal is transmitted to the second node, the backward defect indication clear signal indicating an absence of a failure in the first path.