http://uwcryspionvholmkfxoqt2xns5mvnct34ytacugxtqpqrnka2oqm6kqd.onion/software/exptor/index.html
In short, ModelNet emulates network topologies with realistic link properties (e.g., delay, bandwidth,
drop rate, etc.) using commodity hardware and OSes. In contrast to small-scale experimental methods (e.g., running a single modified Tor client or router), emulating
the entire Tor network at near-scale enables experiments that capture whole network effects.