基于软件定义网络的动态QoS方法

摘要

随着计算机网络的快速发展,其对于服务质量(Quality of Service)的需求和要求也越来越高.近年来,软件定义网络(Software Defined Network)逐渐兴起,由于软件定义网络的服务质量方法可编程性、可扩展性强,因而能够弥补传统服务质量的很多问题.提出了一种软件定义网络实现的动态服务质量方法,在转发队列和路由选择环节都能根据当前网络的状况进行决策;与此同时还会根据网络状态的变化以及数据包到达目的地的延时和丢包率情况来对决策进行调整和补偿.%With the rapid development of network,there is more and more requiring for quality of service in communication system.In recent years,software defined network(SDN) has become a hot spot.SDN based Qos method is programmable and extensible,it makes up the defects of traditional method.This paper proposes a method for dynamic quality of service based on SDN in smart grid by considering both the state of current network and the delay and packet loss of the data packets arriving the destination.