GARR is the ultra-broadband network dedicated to the Italian research and education community. Its main objective is to provide high-performance connectivity and to develop innovative services for the daily activities of researchers, professors and students as well as for international collaboration. GARR network is designed and managed by Consortium GARR, a non-profit association founded under the auspices of the Ministry of Education, University and Research. The members are CNR, ENEA, INAF, INFN, INGV and CRUI Foundation, representing all Italian universities. GARR network is an extensive digital infrastructure with about 15.000 km of optical fibre covering the entire national territory. It reaches about 4 million users and connects more than 1.200 sites, most of which are public institutions (research institutes, universities, research hospitals, cultural institutes, libraries, museums, schools).