Abstract
A load balancing strategy based on SDN controller is proposed to solve the load and security problems caused by the large number of services carried by power communication network in this article. Firstly, integrated with the actual situation of the network, the basic framework of gradual hierarchical transformation of power communication network is put forward. Then, the SDN controller response delay model is discussed in detail in the modeling process, and a multi controller deployment model and its solution algorithm are also proposed. The simulation results verify the effectiveness of the SDN centralized control function, and optimize the load balance, QoS and resource utilization, so as to reduce the impact of power grid communication link failure on the control delay.
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