The 17th GENI Engineering Conference (GEC), hosted by Parmesh Ramanathan of the University of Wisconsin at Madison, was held from July 21 through July 23 2013 in Madison. Highlights of this GEC included two plenary demonstrations: A demonstration of the LabWiki experimenter tool and the GIMI instrumentation and measurement system by Michael Zink, Divyashri Bhat and Cong Wang of the University of Massachusetts and Shufeng Huang of the University of Kentucky. The team used LabWiki to orchestrate an experiment and to view instrumentation data produced by GIMI. The experiment demonstrated was OpenFlow-based network load balancing. A demonstration of automated network stitching in GENI. This new stitching capability is available to GENI experimenters as "alpha"-capability to connect select GENI aggregates; it will be available at more GENI aggregates by the next GEC.
GEC17 marked a couple of important milestones in the growth of GENI: GENI utilization surpassed the 1000 experimenter mark. The emerging "at scale" GENI deployment now includes more sites than the meso-scale deployment. The current deployment includes GENI racks, WiMAX base stations, regional and backbone networks and other testbeds federated with GENI.
GEC17 featured a number of tutorials ranging from introductory tutorials for newcomers to advanced OpenFlow tutorials. New at this GEC were: A three-part series of tutorials for newcomers to GENI. Part 1 of the series introduced basic GENI concepts and had participants run a simple GENI experiment using the Flack experimenter tool. Part 2 of the series gave attendees a glimpse of what happened behind the scenes in GENI when they ran their experiment in Part 1. Concepts such as RSpecs and the GENI AM API were introduced in this part. The Omni experimenter tool was used to reinforce these concepts. Part 3 introduced the GIMI and GEMINI instrumentation and measurement tools. This three-part series was very well received and attendees agreed this new format is a suitable basis for a standard classroom introduction to GENI. A tutorial by Jay Aikat of the University of North Carolina on the design of networking experiments using the TMix traffic generation tool. This was followed by a hands-on tutorial on TMix. An advanced OpenFlow tutorial where experimenters had the opportunity to write a load-balancing OpenFlow controller similar to that demonstrated at the plenary.