 An important part of CESNET's activities is research of advanced network technologies and applications from hybrid networking, programmable hardware, metacomputing to middleware and video transmissions.CESNET fulfils the role of NREN within the Czech Republic and represents it in international organisations such as the GÉANT Association (established through a merger between TERENA and DANTE), EGI and GLIF.CESNET is involved in the implementation of the European backbone network project called GÉANT.