面向SDN的可生存性增强自配置技术

摘要

Software defined networking forwards the network control plane and data plane separation,and implements programming control centralized.In view of the resource allocation problem in software defined networking environments,self-configuration technology for survivability enhancement is discussed.Firstly,based on the brief introduction of definition and concept,the architecture and key technologies of software defined networking are described,and then the self-configuration technology for survivability enhancement of the present stage are summarized and analyzed concretely.Through building virtual layer between the control and infrastructure layer,a self-configuration technology for survivability enhancement based on network virtualization is proposed,which is implemented by the combination with cloud computing,and analyze the feasibility in self-configuration oriented software defined networking.Finally,outline the challenges encountered in the development process of software defined networking.%SDN将传统的控制平面与数据转发平面相分离,实现可编程的集中式控制.针对SDN环境下的资源配置问题,探讨增强系统可生存性的自配置技术.首先,在简述SDN基本定义和概念的基础上,介绍SDN的体系结构及其关键技术,然后对现阶段的可生存性增强技术问题进行总结和分析.通过在控制层和基础设施层之间构建网络虚拟层,提出一种基于网络虚拟化的可生存性增强自配置技术,将SDN和云计算结合进行实现,并给出面向SDN自配置技术的可行性分析,最后总结了在SDN发展中遇到的各种挑战.