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. 17, 2024
Filed:
Mar. 03, 2022
Ciena Corporation, Hanover, MD (US);
Muthurajah Sivabalan, Kanata, CA;
Sami Boutros, Union City, CA (US);
Tao Wang, Ottawa, CA;
Ashwath Narasimhan, San Jose, CA (US);
Ciena Corporation, Hanover, MD (US);
Abstract
Systems and methods include, in a node in a Segment Routing network, learning an adjacency Segment Identifier (SID) of a directly connected neighbor; and programming forwarding entries including a primary path and backup path associated with the adjacency SID. The programming is only performed for adjacency SIDs of directly connected neighbors, for use as a Point of Local Repair (PLR). This addresses holes in Topology Independent Loop Free Alternative (TI-LFA) node protection scheme for Segment Routing Traffic Engineering (SR-TE) paths.