Fault Tolerance Comparison of ONOS and OpenDaylight SDN Controllers
José Manuel Sánchez Vílchez, David Espinel Sarmiento · 2018
Software-Defined Networking logically centralizes the intelligence inside the SDN controller, therefore the fault tolerance of an SDN not only depends on the SDN controller availability but also on its timely forwarding decisions in realtime to circumvent faults on the data plane. In this paper we compare the behavior of the opensource SDN controllers OpenDaylight and ONOS when circumventing faults on the data plane and dealing with topological changes to ensure the continuity of service. We evaluated both controllers under a set of fault scenarios conceived to deploy fully customizable network topologies by keeping a better configuration control on the interconnections than the existing in current simulation tools such as Mininet.