计算机技术与发展2016，Vol.26Issue(11)：188-194,7.DOI:10.3969/j.issn.1673-629X.2016.11.041
一种基于QoS和动态负载均衡的路由策略
A Routing Strategy Based on QoS and Dynamic Load Balancing
摘要
Abstract
In order to improve pertinence and accuracy of network load balancing scheduling for SDN ( Software-Defined Networking) , a SAS algorithm is designed. This algorithm puts forward the concept of link stickiness,and applies link stickiness to estimate the impacts of scheduling on flow performance,by preferentially scheduling flow with low stickiness to reduce the impacts of scheduling on flow per-formance,so as to achieve the purpose of optimized scheduling. In the process of re-routing,it takes QoS needs of flow into considera-tion,and applies approximation algorithm to calculate the optimal route under multi-QoS constraints. Then a prototype system is designed and implemented based on Floodlight,an open control platform. Aiming at two test targets,including the load balancing effect and its generated flows’ QoS,the test approach is designed and implemented. Experimental test results show that in case of different QoS require-ment flows competing for limited network resources and resulting in network load deviations from the balance state,compared with DLB and LABERIO,the technology approach proposed can improve the bandwidth utilization while fulfilling the requirements of QoS on flow,and reduce the influence on flow’ s performance.关键词
软件定义网络/路由策略/动态负载均衡/链路粘值Key words
Software-Defined Networking/routing strategy/dynamic load balancing/link stickness分类
信息技术与安全科学引用本文复制引用
孙杰,李莉,沈苏彬..一种基于QoS和动态负载均衡的路由策略[J].计算机技术与发展,2016,26(11):188-194,7.基金项目
江苏省未来网络前瞻性研究资助项目(BY2013095-1-08) （BY2013095-1-08）
