A Quality of Service Abstraction Tool for Advanced Distributed Applications
Alexander Schill, Ch. Mittasch, Tino Hutschenreuther, F. Wildenhain · 1995
High performance communication protocols are being used in our lab as an experimental base for advanced distributed applications with a special focus on quality of service (QoS) characteristics. During our recent work, we recognized that quality of service abstractions would prove very useful for facilitating distributed application development. As a first base, we present a ma-nagement tool for inspecting and controlling quality-of-service related characteristics on top of XTPX (eXpress Transfer Protocol Extended) and TCP/IP. Based on a classification of QoS requirements of various multimedia data streams,the design and implementation of a higher-level QoS manager tool is described then. We finally illustrate how such an approach will be integra-ted with traditional client/server platforms such as the OSF Distributed Computing Environment.