GARR (Gruppo per l'Armonizzazione delle Reti della Ricerca) is the Italian national computer network for universities and research. The main objective of GARR is to design and manage a very high-performance network infrastructure that delivers advanced services to the Italian academic and scientific community. The GARR network is connected to other national research and education networks in Europe and the world, is an integral part of the global Internet, and thereby promotes the exchange and collaboration between researchers, teachers and students worldwide.