摘要
因特网的出现使世界上几乎所有的东西都能相互联系起来,从而诞生了数字化的社会,给人们的生活与交流带来极大的方便。然而传统的IP因特网结构不仅复杂而且难以管理,表现在根据预先定义好的策略来对网络进行配置是极其困难的。新型的基于控制与转发分离的软件定义网络(SDN)能够有效地改变这种状况。该新型网络能够使网络管理变得容易且还能更好地促进网络的演进。该文介绍了SDN的发展历史、特征及研究方向等,重点对SDN的体系结构、关键技术及应用进行了介绍。
The Internet has led to the creation of a digital society,where almost everything is connected and is accessible from anywhere.Thus,it brings great convenience to people＇s life and communication.However,traditional IP networks are complex and very hard to manage.It is very difficult to configure the network according to predefined policies.The new software-defined network（ SDN）can efficiently change this state by separating the control from forwarding.This network can simplify network management and better facilitate network evolution.This paper describes the development history,characters and research direction of the soft defined network,and focuses on the introduction of the architecture,key technology and application.
出处
《实验科学与技术》
2016年第1期102-106,178,共6页
Experiment Science and Technology
关键词
软件定义网络
应用面
控制面
数据面
soft defined network
application plane
control plane
data plane
