N-2-3-030.503 BETEL-Internet on ATM by Olivier Martin Since September 1993, what is believed to be the first international ATM network is in pilot operation. The network, dubbed BETEL (Broadband Exchange over Trans-European Links), is linking four sites located in Geneva (CERN), Lausanne (EPFL), Lyon (IN2P3) and Nice (Eurecom) in a fully meshed manner via, Cisco routers, ATM Terminal Adapters (TA), located at the user sites, and an ATM Cross-connect, located in France Telecom premises in Lyon. The international optical fiber circuits operating at 34 Mb/s are supplied by France Telecom and Telecom PTT Switzerland, whereas the ATM equipment are supplied by Alcatel CIT. All the equipment in BETEL are commercially available. BETEL is a one year demonstration project funded by the European Parliament and contracted by the CEC to France Telecom/Expertel. The applications which include tele-teaching, visualization of physics data events and high performance distributed computing, are all based on TCP and UDP. Inside the BETEL network SMDS encapsulation is used with E.164 addresses. The distributed computing application, between CERN and IN2P3, involves the sharing of ressources (i.e. disk, tape, CPU) between two heterogeneous clusters of very high performance UNIX workstations and aims at building a "meta-computing" facility across the two centers. For more information about BETEL, please contact the author or fetch the BETEL specifications (a 70 pages document) via anonymous ftp from /pub/betel/betel-d01.ps (753787 bytes) /pub/betel/betel-d01.ps.Z (266007 bytes)