A Linear Programming Model for Latency Minimization and Fault Tolerance in Software Defined Network Controller Placement

Authors : Yasin İNAĞ, Mehmet DEMİRCİ

Pages : 237-245

Doi:10.29137/umagd.1029913

View : 13 | Download : 7

Publication Date : 2022-01-31

Article Type : Research Paper

Abstract :This study proposes a mathematical model for the controller placement probleminsert ignore into journalissuearticles values(CPP); in Software Defined Networks insert ignore into journalissuearticles values(SDN);. For SDN networks, multiple controllers are often suitable, and the location of these controllers affects the network performance. In case the controller is at fault, the resilience and reliability of the network should be ensured. Therefore, the recommended model optimizes the number and location of the controllerinsert ignore into journalissuearticles values(s); in the network while controllerinsert ignore into journalissuearticles values(s); is at fault. The model aims to minimize the latency by considering the reliability and resilience of the network. The simulation results show that the average latency is slightly increased whilst providing network resilience. The proposed model can be used to integrate SDN into existing networks or plan a new SDN network.
Keywords : Controller placement, SDN, capacitated, reliability