SDN数据层和控制层关键技术研究

Research on Key Technologies of Data and Control Layers for SDN

为了对SDN数据层和控制层关键技术进行研究,首先,阐述了SDN的概念及其体系结构;其次,在分析交换机设计、转发策略设计、控制器设计、和控制器性能设计面临关键挑战的基础上,提出数据层和控制层的关键技术;最后,面向大学信息服务多样化业务需求,提出一个基于SDN应用的部署案例,证明该方案能够有效地提高网络资源利用率、增强业务部署效率、满足用户业务差异化需求。

In order to investigate the key technologies of data and control layers for SDN, the concept and system structure of SDN were introduced firstly. Then, the key technologies of data and control layers were presented according to the analyses on the challenges faced by the switch design, forwarding policy, controller design and performance, Finally, a deployment case based on the SDN application was put forward oriented to the versatile information service requirements in the university, which can confirm that the proposed scheme can effiectively enhance the resource utilization, improve the service deployment efficiency and satisfy users＇ differential service requirements.