Testbed for Satellite and Terrestrial Interoperability (TSTI)

Various issues associated with the "Testbed for Satellite and Terrestrial Interoperability (TSTI)" are presented in viewgraph form. Specific topics include: 1) General and specific scientific technical objectives; 2) ACTS experiment No. 118: 622 Mbps network tests between ATDNet and MAGIC via ACTS; 3) ATDNet SONET/ATM gigabit network; 4) Testbed infrastructure, collaborations and end sites in TSTI based evaluations; 5) the Trans-Pacific digital library experiment; and 6) ESDCD on-going network projects

Native ATM Application Programmer Interface Testbed for Cluster-based Computing

This paper investigates the use of ATM for cluster based computing. The need for a native ATM API is discussed as well as the performance of message passing libraries (MPL) that are written to use such an API to exploit the advantages of a high-speed network for cluster-based computing. The MPLs offer a standard interface, such as PVM or MPI, and interoperate with existing TCP/IP and UDP/IP based versions in addition to the ATM API environment. The interoperability extensions made to two MPLs, MPI and Prowess, will be described which a hybrid environment of both ATM and TCP-based legacy network technology. The native ATM API is describedin this paperwhich supports cluster basedcomputing that may be geographically distributed. Furthermore, this API provides a reliable transport interface to the MPL which hasbeen optimized for an ATM environment. The transport protocol is a low-state design that optimizes the performance basedon the available bandwidth, buffer constraints, propagationdel..

Satellite Networks: Architectures, Applications, and Technologies

Since global satellite networks are moving to the forefront in enhancing the national and global information infrastructures due to communication satellites' unique networking characteristics, a workshop was organized to assess the progress made to date and chart the future. This workshop provided the forum to assess the current state-of-the-art, identify key issues, and highlight the emerging trends in the next-generation architectures, data protocol development, communication interoperability, and applications. Presentations on overview, state-of-the-art in research, development, deployment and applications and future trends on satellite networks are assembled