摘要
如何实现网络服务质量保证一直是互联网领域研究热点.基于流量分类技术,提出一种实现SDN网络服务质量保障的机制,该机制通过端口区分识别应用类型.根据各种应用不同的性能需求,SDN控制器为各种应用的流设置不同带宽的专有路径和不同排队优先级的队列,并为各种应用设计个性化流表.最后,在Mininet+Ryu的实验环境下,针对语音通信、视频通信、FTP文件传输、Web访问等4种应用进行模拟实验.实验结果证明所提方法可以满足语音/视频通信低时延和低抖动要求,以及FTP文件传输的大吞吐量要求和Web访问低时延要求.
How to guarantee the quality of service(QoS) has always been the focus of studies in communication field.This study proposes a method to ensure QoS for SDN based on traffic classification.The method identifies the application type through the port;according to different performance requirements from various types of applications,the SDN controller sets some dedicated paths with different bandwidths and with different queuing priorities for these flows.Besides,personalized flow tables for various types of applications are designed.Finally,simulation experiments are carried out in Mininet+Ryu environment for four applications such as voice communication,video communication,FTP file transmission,and Web access.The experimental results show that the proposed method have low latency and low jitter required for voice/video communication,the large throughput required for FTP file transmission,and the low latency required for Web access.
作者
周菲
李昭桦
ZHOU Fei;LI Zhao-hua(Communication Center,Guangzhou Power Supply Co.,Ltd.,Guangzhou Guangdong 510630;Guangdong Electric Power Design Institute Co.,Ltd.,China Energy Engineering Group,Guangzhou Guangdong 510663)
出处
《广东技术师范大学学报》
2020年第3期33-39,共7页
Journal of Guangdong Polytechnic Normal University
基金
广州供电局有限公司科技项目(GZHKJXM20170117)。
