PlanetLab
PlanetLab was a group of computers available as a testbed for computer networking and distributed systems research. It was established in 2002 by Prof. Larry L. Peterson and Prof. David Culler,[1] and by 2005 it had been deployed at 252 sites in 28 countries. [2] Each research project had a "slice", or virtual machine access to a subset of the nodes.
Accounts were limited to persons affiliated with corporations and universities that hosted PlanetLab nodes. However, a number of free, public services have been deployed on PlanetLab, including CoDeeN, the Coral Content Distribution Network, and Open DHT. [3]
PlanetLab was officially shut down in May 2020[4] but continues in Europe.[5]