Layer Integrated Quality of Service Management

Emerging high speed networks give rise to new classes of applications like teleconferencing or video-on-demand which demand Quality of Service (QoS). To provide QoS support on an end-to-end basis, the demand of integrating network, transport, and operating system appears since applications compete for network access, processor time and QoS guarantees. This paper discusses QoS requirements to the transport and operating system. Several approaches for QoS management schemes are discussed and problems identified. A possible solution is presented and explained which operates on end-system management on the basis of an admission control for resources. Further QoS specification on the basis of a structured description of the application data contents at the transport system interface is presented. A generic description is presented and the resulting management functionalities inside the transport system are discussed.