浅议SDN发展对网络安全的影响

摘要

文章简要介绍了软件定义网络（software defined network，SDN）的基本思想和特点，分析了SDN与虚拟化技术的关系，着重讨论了SDN对网络安全带来的影响，并提出了大安全思路和软件定义安全方向以应对SDN发展对网络安全的影响。%This paper briefly introduces the basic ideas and characteristics of software defined network (SDN) and analyzes the relations between SDN and virtual technology. Mainly, the paper discusses the impact of SDN on network security, and advances the idea of Big Security and the direction of software deifned security, thus to deal with the impact of SDN development on network security.