The Yin and Yang of Packet-Optical Transport SDN

The joint operation of packet and optical transport networks managed by a network operating system, enable applications that take advantage of multi-layer visibility. We present two experiments that demonstrate how performance metrics from the optical or packet layer can be utilized to make intelligent actions at the complementary layer. In the first experiments, error measurements from the optical layer are utilized to intelligently reroute packet services depending on their error tolerance. In the second experiments, packet congestion measurements are utilized to switch a photonic cross connect to create express data-center interconnection on the optical layer.