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In this paper, we analyse the use of PlanetLab Europe for development and evaluation of geographically-oriented Internet services. PlanetLab is a global research network with the main purpose to sup- port development of new Internet services and proto- cols. PlanetLab is divided into several branches; one of them is PlanetLab Europe. PlanetLab Europe con- sists of about 350 nodes at 150 geographically dier- ent sites. The nodes are accessible by remote login, and the users can run their software on the nodes. In the paper, we study the PlanetLab's properties that are significant for its use as a geographically distributed testbed. This includes node position accuracy, services availability and stability. We find a considerable num- ber of location inaccuracies and a number of services that cannot be considered as reliable. Based on the re- sults we propose a simple approach to nodes selection in testbeds for geographically-oriented Internet services development and evaluation.

PlanetLab Europe as Geographically-Distributed Testbed for Software Development and Evaluation