Abstract
The integration of Software-Defined Networking (SDN) and block chain technology represents a groundbreaking approach in addressing contemporary challenges in network management and security. The dynamic and centralized control offered by SDN, combined with the decentralized and secure nature of block chain, provides a robust framework for enhancing network performance and security.SDN simplifies network management by decoupling the control plane from the data plane, allowing for more flexible and efficient network configuration. However, this centralization can become a single point of failure and a target for cyber-attacks. Block chain technology mitigates these vulnerabilities by providing a decentralized ledger that enhances security and transparency. By recording network events on a block chain, the integrity and authenticity of network transactions are ensured, reducing the risk of malicious activities. The integration of Software-Defined Networking (SDN) and block chain technology is a significant advancement in the field of network management and security, offering innovative solutions to contemporary challenges. By leveraging the dynamic control capabilities of SDN and the decentralized, secure nature of block chain, this research contributes to the development of more resilient, efficient, and secure network infrastructures. One of the critical areas of impact is enhanced network security. Traditional networks are vulnerable to various cyber threats, and the centralized nature of SDN can become a target for attacks. Block chain technology mitigates these risks by providing a decentralized ledger system that ensures the integrity and authenticity of network transactions. This integration can prevent unauthorized access and reduce the risk of data tampering, thereby creating a more secure network environment. Alternative taken as SDN with Ethereal Block chain. SDN with Hyper ledger Fabric. SDN with Corda Block chain. SDN with Cord Block chain. SDN with Multichip Block chain. Evaluation Preference taken as Security Enhancement (SE) Network Performance (NP) Implementation Cost (IC) Operational Complexity (OC) The results indicate that SDN with Quorum Block chain D Attained the top position, while SDN with Ethereal Block chain A had The lowest position achieved. The dataset's significance regarding Integration of SDN and Block chain Technology, according to the wpm Method, Company D achieves the highest ranking.