SDNFV-Based Dynamic Network Function Deployment: Model and Mechanism

Oriented to the distinctive communication demands of diversified network applications, the current Internet should be able to provide special packet processing operations beyond simple packet forwarding. In this letter, we propose a dynamic network function deployment model based on Software Defined Networking and Network Function Virtualization to control and deploy diverse network functions in corresponding switches, so as to provide special-purpose communication features for different applications. We devise a dynamic network function deployment mechanism, which pre-deploys appropriate functions before they are massively requested according to the prediction, and real-timely deploys a few of new requested functions according to the current network status. The simulation results show that the proposed model is feasible and effective.