基于通用宽带路由器的OpenFlow交换机设计

A DESIGN OF OPENFLOW SWITCH BASED ON GENERAL BROADBAND ROUTER

基于OpenFlow协议的软件定义网络离不开控制器与OpenFlow交换机。然而,支持OpenFlow协议的交换机异常昂贵且难于获得。为了方便地获得支持OpenFlow协议的交换机,介绍一种基于通用宽带路由器的OpenFlow交换机设计。该设计可以仅用市场上常见的通用宽带路由器以及开源Linux软件构建出一款完整支持OpenFlow协议的交换机。实验结果显示,该设计以可接受的性能实现现阶段OpenFlow协议的所有功能。

OpenFlow protocol-based software-defined network has to rely on controller and OpenFlow switch. However the switches supporting OpenFlow protocol are extremely expensive and difficult to get. In order to facilitate the obtainment of switches supporting OpenFlow protocol,in this paper we introduce a general broadband router-based design of OpenFlow switch. The design can construct such a switch fully supporting OpenFlow protocol by only using general broadband router commonly found in markets and the open-source Linux software. Experimental results show that the design can implement all functions of OpenFlow protocol at current stage with an acceptable performance.