Dynamic end-to-end QoS management middleware for distributed multimedia systems
Denise J. Ecklund, Vera Goebel, Thomas Plagemann, Earl F. Ecklund · 2002
Abstract. In this paper, we present a separable, reusable mid-dleware solution that provides coordinated, end-to-end QoS management over any type of service component, and can use existing (legacy) QoS management solutions (by using wrappers) in a distributed multimedia system. Our middle-ware solution incorporates strategic and tactical QoS man-agers, and supports protocols and messages between tactical managers and managed application components, and between QoS managers in the management hierarchy. Strategic QoS managers take a global view of QoS provided by a set of application components within the manager’s policy domain. Tactical QoS managers provide local control over application components.We introduce the concept of QoS policy domains to scope the authority of a strategic QoS manager.We describe how the management hierarchy is dynamically configured and reconfigured based on runtime needs of the application.