Modeling the global Internet

A new scalable modeling framework and scalable parallel simulations make it possible to analyze the detailed behaviour of large, multidomain multiprotocol Internet models. The article focuses on simulation research. It describes the software designs that let us construct and run appropriately large models. After several years of research, we have developed a scalable network modeling framework, a scalable simulation framework (SSF), and scalable parallel discrete event simulators capable of modeling the Internet at unprecedented scales.