SDN Controller Deployment Strategy based on Electric Power Communication Network Community Partitioning

The current electric power communication services encompass a wide variety of services with significant differences in their business requirements. Traditional electric power communication networks struggle to meet the diverse needs of these services. Software-Defined Networking (SDN) has introduced a more convenient and efficient approach to network management and upgrades for electric power communication networks. However, the traffic in electric power communication networks is characterized by spatiotemporal dynamics, leading to an uneven distribution of SDN controllers, which severely impacts network performance. To address the controller deployment issue in SDN networks, this paper establishes a quantification model for SDN network controller power, divides the SDN network into communities based on community modularity, and proposes a controller deployment strategy tailored to electric power communication network community division, optimizing the power for each controller within each community effectively. This resolves the controller deployment issue in SDN networks. Finally, a controller deployment algorithm based on power optimization is implemented through simulation experiments, and the experiments demonstrate that the algorithm proposed in this paper, in comparison with the baseline algorithm, exhibits lower total controller power consumption and average response time. Furthermore, it reduces controller power fluctuation and latency jitter, thereby enhancing the quality of network service.