QoS guarantee over hybrid SDN/non-SDN networks
Ola Salman, Imad H. Elhajj, Ali Chehab, Ayman Kayssi · 2017
Ensuring dynamic behavior, accountability, and flexible management is required by any traffic engineering solution. Software Defined Networking (SDN), presenting a central management control, is a promising solution in this context. However, the migration to SDN is not straightforward. SDN and non-SDN based networks will coexist for a long period of time. This hybrid mode brings together the distributed networking scheme benefits in terms of robustness and scalability, and the SDN management power gained by the control centralization. At the same time, it avoids the centralization single point of failure and the distributed scheme's management complexity. In this paper, we review research work related to hybrid networks and we present a solution to guarantee Quality of Service (QoS) for time-critical applications over a hybrid network.