摘要
针对SDN中的流量突发问题,本文提出一种基于带状态SDN数据平面的突发流处理方法。基于OpenState在数据平面上增加状态转换机制,利用流状态与转发路径之间的绑定,及时将突发流从原始转发路径转移至备用的转发路径,以防止原始路径由于链路负载的限制而导致网络流数据包丢失甚至链路拥塞等问题。仿真实验结果表明,在流量突发导致原始路径丢包率逐渐增高时,使用所提方法后的路径丢包率可以维持在0%,在规避可能发生拥塞的同时,也尽量平衡了网络流在可用路径上的负载。
For the flow burst problem in Software-Defined Networking(SDN),we propose a burst flow processing method based on stateful SDN data plane.Based on OpenState,we add a state transition mechanism on the data plane.By taking use of the binding between the flow state and the forwarding path,the burst flow is transferred from the original forwarding path to the alternate forwarding path in time,thereby preventing problems such as network flow packet loss and event link congestion due to link load limitations of the original path.The simulation experiment results show that when burst flow causes the packet loss rate of the original path to increase gradually,the packet loss rate of a path after using the proposed method can be maintained at 0%.While avoiding possible congestion,it also tries to balance the load of the network flow on the available path.
作者
张瑞
林为伟
张栋
ZHANG Rui;LIN Weiwei;ZHANG Dong(College of Mathematics and Computer Science,Fuzhou University,Fuzhou,China,350108)
出处
《福建电脑》
2019年第9期10-14,共5页
Journal of Fujian Computer
