Abstract
In this paper a flexible burst-level ATM traffic generator is presented. It is a PC-based system with a careful allocation of functions between hardware (PC ISA board) and software, in a way that allows it to work on-line at full-speed (155.52Mbps), on the one hand, and on the other, to be flexible enough to emulate a wide range of ATM traffic profiles. Up to 4 boards can be hosted by a single PC, each being able to generate up to 16 independent streams. Each stream consists of a continuous sequence of “traffic events” (burst-silence cycles), with each event being described by three parameters: the burst size, the silence duration and the inter-cell distance within the burst. The triplets, describing respective traffic events, are generated by software and downloaded on-line (through DMA) to the hardware; thus, in principle, any traffic model can be implemented, the limits being imposed only by the speed of the PC in relation to the total number of independent streams (up to 64) generated concurrently. For example, arbitrary distributions of the three traffic parameters (including experimental histograms) can be independently sampled; or correlated samples according to any law desired can be easily produced. Even further, real traffic can be emulated, provided that a monitoring device (e.g. a LAN traffic monitor) is connected to the PC feeding it with samples of the real traffic stream.
The original version of this chapter was revised: The copyright line was incorrect. This has been corrected. The Erratum to this chapter is available at DOI: 10.1007/978-0-387-35353-1_28
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© 2000 IFIP International Federation for Information Processing
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Hontas, S., Evangelatos, A., Vasileiou, D., Mitrou, N. (2000). A flexible and cost-effective ATM Traffic Generator. In: Kouvatsos, D. (eds) Performance Analysis of ATM Networks. ATM 1997. IFIP — The International Federation for Information Processing, vol 29. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35353-1_26
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DOI: https://doi.org/10.1007/978-0-387-35353-1_26
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