智能电网中基于流表控制的虚拟快速传输网络研究

Research of VFTN based on flow table control in smart grid

针对面向智能电网的软件定义网络(software defined networking,SDN)中数据种类繁杂且匹配流表过程中存在较高处理时延的问题,为满足最高优先级数据的时延需求以及相对较低优先级数据的公平性,通过SDN的虚拟化技术及向量交换技术,提出了虚拟快速传输网络(virtual fast transmission network,VFTN),并用OPNET进行仿真。仿真结果证明,VFTN能够有效地提高数据的传输效率,为SDN在智能电网中的应用研究提供有价值的参考。

In the software defined networking （SDN） for smart grid, the data types are complex and processing delay in the Flow- table matching is high. In order to meet the demand of highest priority data delay and relatively lower priority data fairness, SDN- based virtualization technology and vector switching technology are used to build a virtual fast transmission network （VFTN） on the existing SDN for smart grid. The simulation results with OPNET prove that VFTN can effectively improve the data transmis-sion efficiency. It provides a valuable reference for the application of SDN in smart grid.