Date Added: Feb 2012
Since, the beginning of Internet, network researchers have been proposing methodologies and tools to facilitate the design and development of new protocols for Internet. Analytical modeling, network simulation, network emulation, and more recently, testbeds, are being used in these researches. However, there are advantages and disadvantages in all these methodologies making difficult to decide on the ideal methodology and tool. In this paper, the authors propose a new methodology to evaluate Next Generation Networks that permits the integration of design, development and test of a new protocol or network service using different tools.