A Review of Research on Software-Defined Optical Network

The development of optical networks has promoted the implementation of high-speed, broadband, long-distance and ultra-large-capacity transmission. However, with the avalanche growth of network scale and data traffic, traditional optical networks have been unable to carry various data center and cloud-based services. There is an urgent need for a more intelligent "brain" in the optical network. The Software-Defined Optical Network (SDON) proposes to solve the above problems effectively. This paper summarizes the research status of SDON at home and abroad from the aspects of SDON development overview, architecture and virtualization technology. And analyze and forecast the challenges and development trends of SDON.