ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,897, issued on Nov. 18, was assigned to Ciena Corp. (Hanover, Md.).

"Constrained shortest path first path computation for unordered list of included interfaces" was invented by Peeyush Deshpande (Pune, India), Todd Defilippi (Redwood City, Calif.) and Roopesh Palasdeokar (Pune, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Constrained Shortest Path First (CSPF) path computation for an unordered list of included interfaces includes receiving a request for a shortest path in a network from a source to a destination; determining all possible path combinations between the source, the list of interfaces, and the destination, where each of the po...