中文摘要：

介绍了国家重点基础研究发展计划（“973”计划）“软件定义的云数据中心网络基础理论与关键技术”项目的主要研究内容.指出了当前云数据中心网络所面临的挑战,并针对问题提出了利用软件定义网络的解决方案.对于软件定义的云数据中心网络未来发展需要研究的4个课题,即软件定义的云数据中心网络架构、云数据中心网络资源利用率优化、云数据中心网络多租户资源管理和云数据中心网络能耗协同控制,进行了论证和阐述.

英文摘要：

The main research contents of the national basic research program of China （973 program） ＂Fundamental Theory and Key Technologies of Software Defined Cloud Data Center Network＂ was introduced.The challenges of cloud data center network faces curently were pointed out,and the solutions based on software defined networking were proposed.The tour research tasks for software defined cloud data center network research were elaborated,namely,architecture of software defined cloud data center network,optimization of cloud data center network resource utilization,resource management of multi-tenant cloud data center network,and coordinated control of cloud data center network energy.