1 Planetary Network Testbed Larry Peterson Princeton University

2 For What Purpose? Peer-to-Peer Testbed –volunteered desktop machines Akamai-for-Researchers Testbed –geographically-distributed clusters Network Research Testbed –network of open routers …

3 Goals 1000 edge sites –desktop machines that run p2p applications –access nodes for CDN-like applications –run open router software cluster sites –host content and services Both a testbed and a deployment platform

4 Challenges Consensus on the purpose –understand user requirements –users: researchers, clients, volunteers,… Simultaneously build it and use it –quick ramp-up, yet accommodate evolution –minimal base, yet sufficient infrastructure Build a user base –make it easy to access from the desktop –offer useful services

5 Challenges (cont) Build a research community –confluence of research agendas –library of shared components –force ourselves to use our own system Access to sufficient resources –lots of PCs –engineers to code and deploy –administrators to maintain and operate

6 Testbed Management Major failing of past testbeds Interesting problem in its own right –resource and topology discovery –remote logging, debugging, and control –signalling and configuration –secure code distribution –resource allocation