ULg Research Unit in Networking RUN

Behaviour of TCP in the European ATM Pilot

O. Bonaventure2 , E. Klovning1 and A. Danthine2

1 Telenor R&D, Norway
2 Research unit in Networking, EECS department, University of Liège, Belgium



We present and discuss detailed measurements of TCP in the European ATM Pilot. In this wide area ATM network, the traffic contract is enforced by a Usage Parameter Control (UPC) mechanism. We show that when the ATM level traffic was compliant, TCP achieved a good utilisation of the link. However, when the ATM level traffic was only almost compliant, the TCP throughput almost collapsed.


Asynchronous Transfer Mode (ATM), measurements, TCP, Usage Parameter Control (UPC)

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