Performance comparison between virtual MPLS IP network and real IP network without MPLS

In this paper an IP based network consisting of two separate IP networks - a virtual one, running MPLS and an experimental IP network, connected to the virtual one, have been studied. VoIP traffic is exchanged between the two networks. Both networks are connected to the Internet and exchange traffic with it. The virtual network is created by using GNS3. The purpose of this paper is to show a comparison in the performance between the two IP networks. In addition, mathematical distributions and approximations have been made to be used to further evaluate the performance of the two networks. The used methodology in the present work can be applied in the study of different IP networks through which different types of real-time traffic passes