摘要
在新型业务需求和新技术涌现的双重驱动下,软件定义网络(SDN)成为互联网应用提供商、运营商、IT系统和网络设备提供商共同关注的新型网络架构和技术。这种网络控制与转发能力分离的架构,可以支持更灵活的网络控制和业务能力提供。本文从SDN的概念和总体架构出发,分析通信网络中引入SDN的优劣势,提出了在运营商网络中引入SDN技术的场景和实现方案,并对SDN的发展趋势进行了探讨。
With the development of new applications and technologies, software defined network is getting more attention from application providers, carriers, IT system and network devices vendors. In SDN, the control and data planes are decoupled, which supports programmable network control and service provision. This article begins with the definition and framework of SDN, analyzes the advantages and disadvantages of introducing SDN in current telecommunication network. Scenarios of SDN deployment in telecommunication network are described and development tendency of SDN are also discussed in this article.
出处
《电信网技术》
2013年第3期23-28,共6页
Telecommunications Network Technology
关键词
软件定义网络
控制转发分离
网络虚拟化
SDN
decoupled of control and data planes
network virtualization
