A survey of Blockchain technologies applied to software‐defined networking: Research challenges and solutions

Software-Defined Networking (SDN) brought a groundbreaking idea to facilitate network system management by decoupling and abstracting the Control plane Data of traditional networks. The centralised control offers administrators many benefits such as global view network, programmability, dynamic updating forwarding rules, software-based traffic analysis. SDN architecture has been applied lot in practice, especially Internet Things (IoT) platforms. With superiority SDN, IoT devices can be managed configured much more easily when combined. However, also raises challenges terms scalability, reliability, security. Blockchain is another promising solution for secure information storage transmission technology that operates without authority. Applying into address some current issues providing decentralised methods authenticate exchanged information. This study provides comprehensive survey on technologies both security non-security fields. First, related studies an overview background are presented. Then, authors review how from two perspectives: security-aware approaches. Finally, broader perspectives discussed.