软件定义网络SDN新型网络架构研究

Research on the New Network Structure of Software Defined Network

系统研究了SDN网络体系结构,对SDN中的关键技术和设备进行了分析,构建了SDN实验环境,模拟了SDN通过控制流标实现数据转发的过程,介绍了SDN技术的优势和应用场景,并对SDN网络的发展进行了展望。SDN作为一种新型网络架构,能够将网络的转发功能和控制功能彻底分离,相比较传统的OSI七层架构,在数据转发和网络管理等方面具有明显优势,该技术为未来网络技术革新指明了方向,逐渐受到网络技术研究人员的认可。

This paper studies SDN（ Software Defined Network） network structure,key technology and equipment in SDN are analyzed,and SDN experimental environment is constructed. This paper simulates process of data forwarding by SDN,introduces advantages and application scenes of SDN technology,and looks forward to development of SDN network. SDN is a new type of network architecture,which can separate transmit function and control function of the network completely. Compared with the traditional OSI seven level model,it has obvious advantages in data forwarding and network management. This technology points out the direction for future network technology innovation,and is gradually recognized by network technology researchers.