© 1990 by British Computer Society
Performance Measurements on a 39 km Extended Ethernet
Department of Computer Science, The University of Auckland, Private Bay, Auckland, New Zealand
A composite Ethernet has been constructed by linking two conventional Ethernets via a 39 km optical link. This paper presents the results of some performance measurements on this combined network. It is found that the performance is dominated by the computers themselves and aspects of the associated network software. The effect of the 39 km optical link and associated Long-Range Bridge is relatively small. Extrapolating the results shows that reasonable performance may be obtained from linked Ethernets over distances of several hundred kilometres. A simple model has been developed for the prediction of data transfer rates and shows an accuracy in accord with the observations.
Received October 1988. revised September 1989.
* Department of Computer Science, The University of Auckland, Private Bay, Auckland, New Zealand