A Priority-Based Queueing Mechanism in Software-Defined Networking Environments
Mohamed Rahouti, Kaiqi Xiong, Yufeng Xin, Nasir Ghani · 2021
To support latency-sensitive applications (e.g., emergency response) in Software-Defined Networking (SDN) environments, reliable Quality of Service (QoS) mechanisms are needed to ensure the minimization of end-to-end (E2E) latency and control response time. In this research, we design a double-queue system with feedback, named QoSP, to improve data-control communication performance and impose efficient queueing control in SDN. We further study a priority-based queueing scheme to achieve differentiated QoS provisioning via maintaining multiple OpenFlow queues with different priorities at the switch ports of a data plane. The prototype of QoSP is implemented and evaluated on the NSF-sponsored GENI testbed.