SDN-Assisted Routing Scheme in Cloud Data Center using Queueing Vacation Policy

The proliferation of Internet of Things (IoT) has led to an exponential increase in network traffic, which has serious implications on energy utilization and network performance. For cloud data centres, a power-saving traffic control method utilising server vacation is suggested. The core idea is that the Virtual Machines (VM) in the cloud infrastructure may take a vacation by utilising Software-Defined Network (SDN) technologies. Reducing active VMs is the goal of the energy-saving optimisation activity while maintaining QoS criteria. This study focuses on a queuing system with multiple servers, a finite buffer, multiple vacations, and impatient client behavior. By applying certain customer retention policies, impatience clients can be retained in the cloud infrastructure. Using recurrences, the steady-state probabilities have been obtained for the proposed SDN-assisted cloud system. Different performance studies of the proposed system are done to obtain the validity of the system.