基于SDN的宽带接入网用户认证方式研究

摘要

The hierarchical structure of SDN and working principle of OpenFlow are introduced. The existing two typical authentication methods of broadband access network are analyzed, in the meantime, their implementations, network structures, advantages and disadvantages of the two authentication methods in broadband access network constructed by SDN technology are discussed. It is proved that IPoE authentication mode is more suitable for SDN broadband access network in the future.%通过介绍SDN的层次结构和OpenFlow的工作原理，分析了现有宽带接入业务的2种典型认证方式，讨论了它们在SDN技术构建的宽带接入网中的实现方式、网络结构和优缺点，证明了IPoE认证方式更适合应用于未来的SDN宽带接入网络。