FreePastry

FreePastry is an open-source implementation of Pastry intended for deployment in the Internet. The initial release of FreePastry is intended primarily as a tool that allows interested parties to evaluate Pastry, to perform further research and development in P2P substrates, and as a platform for the development of applications. Plans for later releases are to provide a robust, fully secure implementation that is suitable for a full-scale deployment in the Internet.

Software based on : http://research.microsoft.com/en-us/um/people/antr/Pastry/