面向战术边缘应用的SDN网络控制平面设计研究

Research on SDN Control Plane Design for Tactical Edge Applications

软件定义网络(Software Defined Network,SDN)是实现网络智能化的基础与主要技术途径。当前,商用的SDN网络一般应用于数据中心与软件定义广域网(Software-Defined WAN,SD-WAN)场景,其协议设计着眼于宽带、有线、固定的使用环境,普遍存在网络开销大,无法适应动态组网,很难应用于窄带、弱连接的战术边缘场景。基于此,文中在主流商用SDN协议的基础上,从控制平面自动构建、轻量化协议设计与业务流量调度等方面设计了一套面向战术边缘应用的、轻量化的SDN网络控制平面接口协议,仿真验证了所提方案的优越性。文中的研究可为智能化战术信息网络的设计提供一定的参考。

Software defined network(SDN)is the basis and main technical approach to realize network intelligence.At present,commercial SDN networks are generally applied to data center and software-defined wide area network(SD-WAN)scenarios.Its protocol design focuses on broadband,wired and fixed usage environments,which generally have high network overhead and cannot adapt to dynamic networking.Therefore,it is difficult to apply to narrowband and weakly connected tactical edge scenarios.Based on this,this paper designs a set of lightweight SDN interface protocol for tactical edge applications from the aspects of automatic construction of control plane,lightweight protocol design and service traffic scheduling on the basis of mainstream commercial SDN protocols,and verifies the superiority of the proposed scheme through simulation.The research of this paper can provide some reference for the design of intelligent tactical information network.