Extending SDN to Edge Fields for IoT-Centric Data Forwarding on Customized Routes

This paper proposes an IoT-centric data forwarding mechanism based on an Edge-SDN-Cloud network architecture. SDN switches can devolve partial work to edge nodes. Edge nodes can stipulate service requirements of IoT data flows on behalf of resource-restricted IoT devices. The SDN can rapidly distinguish IoT data flows and deliver them through customized routing plans by the central controller. Thus, the proposed mechanism can apply flow control and network resource management on IoT-centric data forwarding over the SDN to the clouds. This paper also shows a simplified proof-of-concept implementation and a simple demonstration case.