Nagendra Kumar Nainar (CCIE No. 20987, CCDE No. 20190014) is a principal engineer with the Cisco Customer Experience (CX) organization (formerly TAC), focusing on enterprise networking. He is the coinventor of more than 100 patent applications on various cutting-edge technologies, and the coarchitect for various recent technologies. He has coauthored multiple Internet RFCs and IEEE papers. Serving as Technical Program Committee (TPC) member for various IEEE and other international conferences, he is an active speaker in various industry forums.