Análisis comparativo de la calidad de servicio entre las redes actuales y las redes de próxima generación

Abstract

Objective of this research is to perform a comparative analysis of the quality of data transfer service and streaming that offers "current networks" compared to NGN (Next Generation Network), to know which of the two networks provides better quality of service. Used a quasi-experimental research due to intentional samples were chosen for the implementation of the testing scenario; using the emulation tool of network devices "GNS3" (Graphic Network Simulator 3) and traffic injector "D-ITG" (Distributed Internet Traffic Generator), which allows to analyze the QoS parameters, through traffic generated from the physical computer (sender) toward the virtual machine (receiver), crossing the emulated network. As testing scenario is emulated the output network of the ESPOCH toward WAN (Wide Area Network) of ISP (Internet Service Provider), implementing Diffserv (Differentiated Service) over MPLS (Multi Protocol Label Switching) to perform the respective analysis of QoS (Quality of Service) parameters, where values for the Streaming service improvement was obtained around 13.33 % and for the data service around 6.66 %. It is concluded that the output of the ESPOCH network toward the WAN improves the quality of data transfer service and Streaming, implementing the mechanism of Differentiated Services "Diffserv" in MPLS (Multi Protocol Label Switching), the same that increases the efficiency of an NGN network offering better quality of service that the current networks computers.