On the performance of max-min fairness scheduler in software-defined networks

In this paper, we investigate the performance of max-min fairness scheduler in software-defined networks (SDNs) which basically centralizes the controller after separating the control plane from the data plane of network devices. Like traditional networks, traffic control mechanism (i.e., resource allocation) plays a fundamental role to satisfy the quality of service (QoS) in SDN. Scheduler allocates the available resources to users under the consideration of some metrics such as fairness, data rate, service requirements etc. In respect to this, we provide a performance improvement of user-satisfied-ratio and quality of a real-time video service with the use of max-min fairness scheduling algorithm, which is a QoS-aware scheduler, on a network structure generated in a laptop. Additionally, the fairness issue is also considered and round robin scheduler which is the simplest resource allocation algorithm is used as benchmark in comparison.