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Performance Implications of QoS Mapping in Heterogeneous Networks Involving ATM

P Francis-Cobley, N Davies, Performance Implications of QoS Mapping in Heterogeneous Networks Involving ATM. Proc. ICATM'98, IEEE International Conference on ATM. ISBN 0 9524027 6, pp. 529–535. June 1998. PDF, 104 Kbytes.

Abstract

In this paper, we discuss issues relating to the mapping of QoS parameters in an IP/ATM environment. We conduct preliminary experiments with constant IP packet rate, which after segmentation in AAL5, generates a jittered CBR cell stream. We use this stream to investigate the effect of parameter translation on the QoS received by the application. Results indicate that translation does have a significant impact on performance, in particular, on cell loss. There are also cost implications, as large buffers are required to achieve an acceptable level of performance.

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