In order to perform estimations of a traffic model for multimedia flows, it is necessary for the researcher to have precise control of the test environment, minimizing errors and interference that may occur, leaving a test scenario that allows a smooth development to the application to be modeled. As an example, we have selected a VoIP traffic which is quite easy to interpret and it provides some of the things that must be done.

Scenario for testing

Figure # 1 shows the diagram used for testing in order to obtain the pattern of traffic on the transmission of voice over IP is shown. In this case, we use a voice over IP gateway Linksys SPA 3102, with the aim of connecting a conventional telephone system with an IP network. A sniffer can capture traffic using the network for later analysis.

Figure # 1: Scenario used to determine the voice traffic.