01488nas a2200145   4500008004100000245005900041210005500100300001000155490000700165520098800172100002101160700002201181700002201203856011701225       2018                        eng d00aExploring SDN & NFV in 5G Using ONOS & POX Controllers0 aExploring SDN NFV in 5G Using ONOS POX Controllers  a46-600 v103 aNovel functionalities will take advantage of the cloud networking and will gradually replace the existing infrastructure of mobile networks with a virtualized one. Two technologies, namely Software Defined Networking (SDN) and Network Function Virtualization (NFV), offer their important benefits and a combination of them is an answer to the demands raised, such as Central Office Re-architected as a Data Center (CORD). Open Network Operating System (ONOS) and POX are SDN controllers and offer an option to combine SDN and NFV addressing many ongoing problems in the field of mobile networks. In this paper, technologies and both controllers are compared and contrasted. Indicative cases of topologies are simulated and help evaluating both controllers. According to the experimental findings, ONOS is one of the most important controllers for practical, theoretical, research and educational purposes, while POX is a useful and simpler controller for other educative applications1 aBouras, Christos1 aKollia, Anastasia1 aPapazois, Andreas  uhttp://telematics.upatras.gr/telematics/publications/exploring-sdn-nfv-5g-using-onos-pox-controllers?language=en