Cell-level/call-level ATM switch simulator

A B-ISDN national project in Korea has been carried out to develop a National Information Superhighway since 1992. An ATM switching system has been developed as one of the most important parts in the project, and has been tested in the National Information Superhighway testbed. In this paper, we develop a cell-level/call-level ATM switch simulator using cell-level and call-level input traffic models for evaluating the ATM switching system. The cell-level simulator models various cell-level switching functions such as priority control and multicast, and evaluates the cell-level performance indices of the ATM switch in terms of cell delay, throughput, and cell loss probability. On the other hand, the call-level simulator uses call-level traffic models and evaluates the call blocking rate as a call-level quality of service (QoS).