A dynamic bandwidth allocation service for ATM-based networks supporting multimedia applications

This paper describes a prototype implementation of a dynamic bandwidth allocation service for ATM-based networks. The major purpose of this service is to increase resource utilization in a network supporting multimedia applications. The implementation was made using an API (application user interface) compatible with UNI version 3.0. The implementation consists of a set of primitives and their related PDU (protocol data units). Some measurements were done using the prototype implementation in order to observe the behavior of renegotiation rejections with respect to some parameters, such as node capacity, level of reservations, number of nodes and so on. The results here shown that the dynamic bandwidth allocation service can be used to increase resource utilization and, at the same time, to provide a high level of guarantee to the accepted connections.