The behaviour of Hubnet is studied and analysed. A simulation model is
developed from which the effect of the retry time on the performance
of Hubnet is studied. It is shown that there is an inherent dependency
between the packet length and the retry time. According to this depen
dency, retry time-values which are factors of the packet length exhibi
t superior performance in terms of reduced average delay and increased
system utilisation, even when compared with some systems with smaller
retry times. A novel analysis of Hubnet under overload conditions is
provided. It is shown that Hubnet, under overload conditions, operates
in a round-robin fashion, and that the channel-access time is bounded
. The performance of Hubnet in a prioritised environment is explored.
It is shown that Hubnet is a very good candidate for voice and data in
tegration.