The Internet is a revolution. Congestion on the Internet is thus a question of time.
Network providers aim to address the issue by offering differentiated services .
These will discern between classes of users and provide higher performance, shorter delays and less jitter to the higher classes. The field is new and calls for a suitable tool to model the traffic and performance of differentiated services networks. Intersim-DiffServ is a collaborative project of EPCC and Cisco Systems, Inc , aiming to produce exactly such a tool.