ABSTRACT
By the virtualization of network function combined with the strength of Software-Defined Networking (SDN) and network slicing can ensure timeliness and privacy awareness. The determination of suspicious and malicious software version of network service is considered obligatory since services designate resources over distrustful and decentralized network settings. The entire service ecosystem supports sharing virtualized serviced instances among many customers in a progressively growing market encompassing network providers in total of thousands and probably more all over the world. In this chapter, a blockchain-based architecture has been demonstrated to achieve transparency and auditability for secured Virtual Network Function (VNF) orchestration operations of network slices. In addition, while retaining anonymity in the middle of different functional slices for VNF deployment, the blockchain model can ensure security. Hyperledger Fabric by IBM developers is open-source and available base tool where network slices can run on an isolated channel with the added benefits of open governance. The prototypical analysis exhibits that it is possible to ensure secured and privacy-preserving VNF deployment by leveraging the mentioned full-proof tool. However, the features, conceptual, integration techniques of blockchain services, and agreement design, along with the transaction throughput metric improvisation, are yet a worthy research paradigm.
