Desarrollo de una plataforma para evaluar calidad de servicios (QoS) en Redes Definidas por Software (SDN).

Abstract

A platform in software-defined networks was developed by using Mininet, a tool which allowed to set a network emulation environment within a common system, accompanied of the Ryu controller, since it contains scripts in Python language which helped in the service quality assessment. The methodology used in this work started with the definition of the most relevant concepts of SDN. The tools used for this project are: SO Ubuntu-14.04.3, Putty server, Xming 6.9.0.38 server, for logics implementation Ryu was used, for the net visualization Mininet 2.2.2 emulator and Wireshark, all in group allowed to create a network platform able to modify its behavior dynamically, guaranteeing so the service quality from side to side. The simulation of a Quality of Service (QoS) application was documented about Ryu controller defining scenarios which coped with different functionalities, as changing the level of package traffic priorities among hosts or also accepting or blocking traffic Internet Control Message Protocol (ICMP). By means of the developed tests through commanding lines developed in the controller, there were determined results as: connectivity tests among devices through ping, traffic shots OpenFlow in Wireshark, and the correct functioning of the change of properties of the packages were verified in 100% of the tests performed with QoS about Ryu. The change of properties through the controller to an implemented network demonstrates the dynamic efficiency the net logics is programmed. It is recommended for future research to implement physical devices emulating a real environment increasing automation.