NFV and VNF Service Chaining on SAVI SDI

Network Function Virtualization, a flexible networking architecture virtualizing network nodes, allows modular development of network functionalities and quick deployment on cloud infrastructures. Each network module individually deploys a virtualized network function (VNF). A network application might demand a set of inter-connected VNFs to work together. The logic and process of connecting VNFs together are called VNF service chaining. In this thesis, two contributions were presented. First, a framework for VNF service chaining for software dened infrastructure was designed and tested using security attacks. The shortcomings of deploying security as a service with VNFs was examined, and a combined NFV/SDN solution was proposed. A parallelism technique was employed to make the NFV/SDN security solution scalable. Second, the real-time content delivery network of a stadium, equipped with virtualized customer premises Edges (vCPEs), accommodated a higher number of users employing our service chaining algorithm.M.A.S