基于SDN的数据中心网络技术研究  

Research on Data Center Network Technology Based on SDN

作　　者：殷波[1] 张云勇[1] 王志军[1] 房秉毅[1] 冯伟斌[1] 

机构地区：[1]中国联通研究院,北京100032

出　　处：《信息通信技术》2015年第1期29-33,共5页Information and communications Technologies

摘　　要：随着云计算数据中心规模的扩大,虚拟化技术的成熟应用保证了计算能力、存储能力的自动伸缩,然而仍然采用传统网络技术,虚拟化程度严重不足,网络能力逐渐成为制约云计算灵活提供资源的瓶颈。SDN(Software Defined Network,软件定义网络)实现了控制与转发的分离,有效解决了网络资源的灵活配置问题。文章对现有SDN技术进行研究,重点分析基于SDN的数据中心网络技术,详细阐述SDN架构,并对控制器和转发设备进行分析说明,对理解基于SDN的数据中心网络具有借鉴意义,对SDN在数据中心落地提供了技术依据。其引入有效解决了数据中心的海量数据多路径转发、虚拟机智能迁移等网络问题,实现了对网络流量的智能规划。With the expansion of cloud computing data center, virtualization technologies assure the automatic expansion of computing ability, storage ability. However, the network technology is still using the traditional network, virtualization is seriously insufficient, network capacity has gradually become the bottleneck of cloud computing. SDN（Software Defined Network） is a separation technology of controller and forwarding, it effectively solves the problem of the flexible configuration of network resource. This paper has conducted the research of the existing SDN technology, focuses on the analysis of the data center network technology based on SDN, describes in detail the architecture of SDN, analyzes and illustrates the controller and forwarding equipments. It helps understand the data center network based on the SDN, and provides the technical basis for SDN in the data center. The introduction of SDN technology effectively solves the network problems such as multi-path forwarding of mass data in data center, the virtual machine intelligent migration, and realizes the intelligent planning for network traffic.

关 键 词：软件定义网络 数据中心 网络技术 数据平面 控制器 

分 类 号：TP308[自动化与计算机技术—计算机系统结构]