Hálózati forgalomkezelés számítási felhő szimulátorokban

Abstract

Infrastructure as a service systems offer access to on demand virtual infrastructures even for people with minimal IT maintenance experience. The reliability and flexibility of these systems lead to high level of centralization that limits researchers to improve the internal behaviour of such systems. Thus, researchers evaluate their novel improvements with simulators. The precision of these simulators heavily influence the real-life applicability of the new findings. This article shows that current cloud simulators often have significant errors when comparing their network behaviour to real life. Based on the analysis of these errors, this article introduces a new simulation method that not only increases the precision of the simulation but also maintains the performance of past solutions (allowing its general use).