Title: The Two-Step P2P Simulation Approach
Authors: Hannes Birck, Oliver Heckmann, Andreas Mauthe
Abstract: In this article a framework is introduced that can be used to
analyse the effects & requirements of P2P applications on application and on
network layer. P2P applications are complex and deployed on a large scale, pure
packet level simulations do not scale well enough to analyse P2P applications in
a large network with thousands of peers. It is also difficult to assess the
effect of application level behavior on the communication system. We therefore
propose an approach starting with a more abstract and therefore scalable
application level simulation. For the application layer a specific simulation
framework was developed. The results of the application layer simulations plus
some estimated background traffic are fed into a packet layer simulator like NS2
(or our lab testbed) in a second step to perform some detailed packet layer
analysis such as loss and delay measurements. This can be done for a subnetwork
of the original network to avoid scalability problems.