ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,832, issued on Dec. 16, was assigned to Ciena Corp. (Hanover, Md.).

"Establishing and advertising co-routed bidirectional paths across multiple domains" was invented by Amila Pradeep Kumara Tharaperiya Gamage (Kanata, Canada) and Muthurajah Sivabalan (Kanata, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Establishing and advertising co-routed bidirectional paths across multiple domains includes determining a path from the router to a BGP peer, in a Segment Routing (SR) network, as a reverse path SR policy; appending a Binding Segment Identifier (BSID) of the reverse path SR policy in a BGP update message; and sending the BGP update message t...