An Integrated Control of IP and Optical Network for Multi-grade Virtualized Networks

In the 5G era, it is expected that various services will be provided on network slices, which are virtualized network resources. A network slice has to support isolation capabilities and multi-grade performance capabilities such as ultra-low-latency and ultra-reliability due to the 5G requirements. IP and optical networks are also required to provide multi-grade property as a part of a network slice. Multi-layer SDN control is beneficial technology to realize the multi-grade network because an integrated control of IP and optical layers enables to combine network technologies across layers. It brings flexibility of service levels in terms of network performance and reliability. In this paper, we propose and demonstrate a multi-grade network which provides various types of virtualized network according to user requirements. Our platform is composed of IP and optical layers and ONOS-based SDN controller. We show on-demand provisioning of a virtualized network with a provisioning tracker that presents current status of provisioning in real-time.