unruh wrote:
On 2010-06-30, David Woolley <[email protected]> wrote:
Real world NTP networks don't behave like that, and most of the things
that annoy people relate to the real world behaviour. Real networks are
subject to diurnal and near step changes in frequency.
? It seems you are discussing the behaviour of the clocks, not of the
network. (the network has no frequency). His simulator works with real
The links have no frequency. The nodes have frequencies. A network is
the combination of the two.
clocks which have exactly the behaviour you describe. Now it may be that
the network model is not the best ( random "long" delays in one way trip
time due to network overload).
If he really has distinct nodes, he will have links between them, even
if they don't use standard technologies. I'm not entirely convinced
that he is not running a discrete event simulation.
Even if he is running real nodes in real time, I somehow suspect he is
going to take steps to eliminate frequency variations, rather than
making them, and their statistics part of the model. It is also very
likely that all the nodes are in the same thermal environment.
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