In recent years,two exciting approaches Software-defined Networking (SDN) and Post-IP architecture (or Future Intet Architecture) to future Intemet have been studied all over the world both in industry and academia.SDN refactors the relationship between network devices and the software that controls them to separate data plane and control plane and it is regarded as an incremental approach toward the future Intet evolution.On the other hand,more recently some innovative clean-slate future Intemet architecture designs have been proposed and expected to address challenges of the Intet such as security,mobility,content distribution,etc.,which are difficult to address with incremental approaches.