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andTmix Ben Newton, Jay Aikat, Kevin Jeffay
Education modules using GENI • Gives students hands-on experience with basic networking principles and protocols • Target is Undergraduate Networking courses • Ready for use in Fall 2014 courses • Novice users! Simple tasks! • geni.web.unc.edu
Tmix • Realistic Traffic Generation • Input: anonymized TCP packet header trace • Output: synthetic traffic in GENI that is statistically equivalent to the measured traffic • http://groups.geni.net/geni/wiki/GeniTmix
What works? • Students love real-world hands-on assignments. • Tmix • Tmix Calibration tutorial at GEC20 worked very well! All students successfully ran Tmix on GENI.
What doesn’t work? • Setup takes too long! • Setup time is more than half the time required for most modules. • Need more Consistency • Some aggregates seem to work better than others • There are too many options for novice users.
Suggestions • Can anything be done to decrease wait times? • Can we create a barebones image for shorter image/boot times? • Is there any way to speed up instrumentation? • Why must I wait after deleting resources? • Can we have an “I don’t care which aggregate” option? • Load balancing, and giving only resources from aggregates that are currently working well. • or at least have a dynamic list?