Intelligent Scheduling of Business and Traffic in Power Communication Network based on SDN

The cloud computing and big data businesses are growing rapidly, which brings serious challenges on easing network congestion. Meanwhile, the power industry is upgrading the power network to energy network, which also introduces plenty of new types of businesses with requirements on deterministic transmission and flexibly grouping network. Software defined network (SDN) technologies seperating the data plane and control plane of traditional network architecture, improves the efficiency of managing network resource and allows to re-config the structure of local network. Based on the SDN technologies, this paper proposes an intelligent scheduling system for businesses and traffics in the power communication network. Firstly, this paper presents some practical applications that are suffering from some challenges, and shows that introducing SDN into the application is able to improve the performance. The intelligent scheduling system is described in detail as well. Some important functions are expected, such as network virtualization, business scheduling, SDN network configuration and maintenance, etc. Meanwhile, the relationship crossing the multiple levels of intelligent scheduling system is explained. The SDN controllers could manage the corresponding physical network, and build VLans according to the business requirements and network resource distribution. Then some important data flow is transferred to scheduling system by the north interface of SDN controllers. This paper also clarifies the positive effects while applying SDN technologies and the intelligent scheduling system into power network by three practical scenarios, including establishing businesses, adjusting network bandwidth, and QoS-based network service management.