基于SDN的一种云服务流量控制方法研究  

Research on a Cloud service flow control method based on SDN

作　　者：匡玉雯 王勇[2] 曾小宝[3] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]桂林电子科技大学计算机科学与工程学院,广西桂林541004 [3]桂林电子科技大学电子工程与自动化学院,广西桂林541004

出　　处：《微型机与应用》2015年第4期61-63,共3页Microcomputer & Its Applications

基　　金：国家自然科学基金(61163058)

摘　　要：为了解决云服务中客户端传输流量过大或者突发流霸占服务导致的网络拥塞、服务性能降低问题,将软件定义网络(Software-Defined Networking,SDN)架构运用于云服务流量控制,并提出了一种基于SDN的云服务流量控制方法。该方法基于SDN架构中流表的特点,通过承诺速率与实际访问速率的比对关系对连接请求进行分类、修改流表、划分优先级,然后根据不同的请求优先级来处理服务,以此控制整个服务系统的流量,从而降低整个服务过程的时延。实验测试表明,该设计能够有效地降低网络服务时延,对云服务质量有显著提高。In order to solve the problems of network congestion and service performance degradation in Cloud services caused by heavy transport traffic of client or sudden flow occupied service, this paper uses Software-Defined Network （SDN）architecture in Cloud service flow control, and proposes Cloud i services flow control method based on SDN. The method is based on the characteristics of SDN architecture midstream table access, through the comparison of commitment rate and the actual rate to classify the connection attempt, modify flow table and prioritize. Then depending on the request priority it handles services to control the entire traffic service systems, thereby reducing the latency of the service process. Experiment shows that the design can effectively reduce the delay of the network service, and Cloud service quality has improved significantly.

关 键 词：软件定义网络 云服务 流量控制 SDN控制器 流表 

分 类 号：TP305[自动化与计算机技术—计算机系统结构]