Eficiência e auto-escalabilidade na virtualização do serviço de tradução de endereços

Abstract

This work presents a novel architecture for the address translation service (NAT) with efficient scalability through the use of Network Functions Virtualization (NFV) in low cost computing environments. To this end, a virtualized network function (VNF) of NAT is instantiated in a minimal OS (ClickOS) and uses a feedback control system to smooth the rate control. Our results indicate that the proposed architecture meets several relevant NFV requirements, including high efficiency, obtaining up to 900% higher throughput gains compared to Linux NAT. In addition, the Proportional Integral control system (PI) yields 85% accuracy in estimating the exact rate using only 3 samples.