基于OpenFlow的移动切换框架研究  

Research on mobile handover framework based on OpenFlow

作　　者：陈智[1,2] 葛敬国[1] 鄂跃鹏[1] 弭伟[1] 

机构地区：[1]中国科学院计算机网络信息中心中国科技网,北京100190 [2]中国科学院大学,北京100049

出　　处：《计算机应用研究》2015年第6期1806-1810,1838,共6页Application Research of Computers

基　　金：国家"973"计划资助项目(2012CB315803);国家科技支撑计划资助项目(2012BAH01B03);国家"863"计划资助项目(2013AA013501)

摘　　要：现有移动切换的相关研究方案在实际部署时配置繁琐、工作量大、网络运维成本高,有些方案还存在三角路由问题,导致切换时延增大。为了解决移动切换过程中的这些问题,提高移动切换的性能,提出了一种基于OpenFlow的移动切换框架,通过理论分析证明了该切换框架的可行性;另外,通过搭建基于OpenFlow的移动切换实验平台,与传统移动IP方案进行性能对比分析。实验结果显示,基于OpenFlow的移动切换框架能够有效地控制数据流路径,避免三角路由问题,并且较传统方案其切换时延降低,说明提出的移动切换框架能够有效节省网络带宽资源和优化移动切换效率。The current researches on mobile handover techniques required cumbersome configuration, massive work, and high operational cost in the actual deployment; in addition, some techniques possessed triangle routing problems and increased han- dover delay. In order to solve these issues in the process of mobile handover and improve the performance of mobile handover, this paper proposed an OpenFlow-based mobile handover framework and analysed the feasibility of proposed framework in theo- ry. Also, it established the OpenFlow-based mobile handover testbed which was compared with traditional mobile IP solution in performance. The experimental results demonstrate that the 0penFlow-based framework can effectively realize the flow control and avoid the traditional triangle routing problem. And it has lower handover delay than the traditional solutions, which illustrate that the proposed mobile handover framework can efficiently save the bandwidth resources and increase the transmission efficiency.

关 键 词：移动切换 OpenFlow 三角路由 切换时延 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]