Extended NAM: an NS2 compatible network topology editor for simulation of web caching systems on large network topologies

Designing new network protocols for the Internet relies on the use of network simulation tools for validation. When simulation is aimed at testing the scalability of new protocols, working with large-scale realistic topologies is of paramount importance. In this paper we present an extension of the NAM Editor, a graphical editor to be used in conjunction with the well-known ns2 network simulator. Our extended NAM Editor allows the creation of synthetic but realistic network simulation scenarios and provides support for the simulation of web caching systems.