摘要
Software-Defined Networking(SDN)is now considered as one of the promising future networking technologies,and this trend can be clearly verified by observing activities of both industry and academia.In industry,we can easily notice that many major
Software-Defined Networking （SDN） is now considered as one of the promising future networkingtechnologies, and this trend can be clearly verified by observing activities of both industry and academia. In industry, we can easily notice that many major network vendors, such as Cisco and Juniper, are actively supporting SDN functionalities.
