中文摘要：

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。

英文摘要：

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.