Sponsored by the National Science Foundation Systematic Experimentation, Automation, and Scaling Up Sarah Edwards, GENI Project Office

Sponsored by the National Science Foundation 2 GEC22 – March 23, 2015 Next you might be asking… How do I build repeatable experiments of non-trivial size?

Sponsored by the National Science Foundation 3 GEC22 – March 23, 2015 Our Advice for Novice Experimenters Creating Repeatable Computer Science and Networking Experiments on Shared, Public Testbeds by S. Edwards, X. Liu, N. Riga In Operating Systems Review, Jan ‘15 Concise advice for novices on designing experiments to run on a testbed: 1.Formulate a clear plan 2.Automate the execution/analysis of your experiment using best practices 3.Build scalable experiments a.k.a. Start small. Then scale up Plus a case study created by a PhD student. Link to ACM Library For students designing their own experiments

Sponsored by the National Science Foundation 4 GEC22 – March 23, 2015 #1 Formulate a clear plan #2 Automate the execution and analysis of your experiment and analysis Know last working configuration … change one thing at a time … … automate as you go AND save your work … #3 Build scalable experiments Start small... then scale up.

Sponsored by the National Science Foundation 5 GEC22 – March 23, 2015 Automate Any sufficiently advanced technology is indistinguishable from magic. -- Arthur C. Clarke automation virtual machine self-configuring software router Auto-configuring XORP software router = xen VM + XORP image + configuration script

Sponsored by the National Science Foundation 6 GEC22 – March 23, 2015 Scaling Demo

Sponsored by the National Science Foundation 7 GEC22 – March 23, 2015 In Conclusion … Hyperbole & A Half &

Sponsored by the National Science Foundation 8 GEC22 – March 23, 2015 Backup

Sponsored by the National Science Foundation 9 GEC22 – March 23, 2015

Sponsored by the National Science Foundation 10 GEC22 – March 23, 2015 Demo Start with XORP image Create diamond topology Auto-IP Save RSpec Save (version control) Reserve resources

Sponsored by the National Science Foundation 11 GEC22 – March 23, 2015

Sponsored by the National Science Foundation 12 GEC22 – March 23, 2015 GENI-FIRE 150 node topology Courtesy of Thierry Rakotoarivelo, NICTA, GEC 20 Demo Clear plan Automation Scale and Visualization

Sponsored by the National Science Foundation 13 GEC22 – March 23, 2015 Virtual Computer Networking Lab Courtesy of Cong Wang and Divya Bhat, UMass Amherst, GEC 20 Demo Start small