"Academic Networks- Europe and the former USSR" By:C.W.Cheong TopologyTEN-34 Europanet ACOnet BELNET FREENet SWITCH Others

Spain (RedIRIS) Introduction IRIS became what RedIRIS actually ison 1991 : the national academic and research network. About 250 institutions are nowadays connected to RedIRIS, mainly universities and R&D Centres. Topology - Click here This picture shows a detailed description of the connectivity between the RedIRIS sites. Technology - Click here The backbone that supports communications services provided by RedIRIS are interconnected by ATM circuits on 34/155 Mbps ATM accesses. ISDN primary and basic accesses are used as a back-up mechanism. IP is the main protocol used in the network (through TCP/IP Local Area Networks interconnection Service, SIDERAL/Internet). X.25 protocol is also used (ARTIX Service) encapsulated in TCP/IP in backbone links. Indeed, IP multi-cast (IRIS-MBONE Service*) is provided as an experimental service with connection to Internet multicast backbone, MBONE). With regard to international connections, RedIRIS participates in the TEN-34 project which is a 34Mbps Pan-European IP network that interconnects the European Research Networks. RedIRIS is connected to the TEN-34 at 22Mbps of speed and also has 5Mbps (aproximately 4Mbps at IP level) to the USA via MCI. Services - Click here WWW Server * FTP * Server ARCHIE * Server WWW PROXY-CACHE * WEB PAGES LODGING