QoS Monitoring in High Performance Environments

Forthcoming applications, especially distributed multimedia and interactive applications, have stringent requirements on the quality of the communication service. Therefore, an integrated Quality-of-Service (QoS) management is needed including all involved components to guarantee a communication service from application to application. One promising approach to guarantee a certain level of service uses the reservation of communication resources and the assignment of these resources to individual data streams based on the requested service. However, often it is not suucient to reserve resources only. Additionally, monitoring of QoS parameters must be applied to ensure that the negotiated QoS is achieved. Within this paper, the design and implementation of a QoS monitor for communication subsystems is presented.