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A Review of the Control Plane Scalability Approaches in Software Defined Networking

Department of Computer Science, Middle East University, 383 Amman 11831, Jordan
Future Internet 2020, 12(3), 49; https://doi.org/10.3390/fi12030049
Received: 17 February 2020 / Revised: 2 March 2020 / Accepted: 7 March 2020 / Published: 11 March 2020
Recent advances in information and communications cloud-based services hold the potential to overcome the scalability and complex maintenance limitations of traditional networks. Software Defined Networking (SDN) surfaced as a promising paradigm to mitigate such limitations while offering flexible networks management. Particularly, SDN separates the control plane from the data plane to achieve abstraction of lower-level functionality, hence, allowing more efficient network management and utilization. However, SDN suffers from various performance and scalability problems leading to significant research efforts on maximizing the scalability of the control plane. This paper aims at reviewing different SDN controller scalability, topology-based and mechanism-based approaches, as well as discussing and analyzing how they attempt to solve the scalability challenge. Furthermore, this paper elaborates on the promising research trends and challenges. Our insights are also discussed to stimulate further research efforts addressing the control plane scalability in SDN. View Full-Text
Keywords: SDN; control plane; scalability; topological-based approaches; mechanisms-based approaches; parallelism optimization; routing-scheme optimization; machine learning optimization SDN; control plane; scalability; topological-based approaches; mechanisms-based approaches; parallelism optimization; routing-scheme optimization; machine learning optimization
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Abuarqoub, A. A Review of the Control Plane Scalability Approaches in Software Defined Networking. Future Internet 2020, 12, 49.

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