[ntp:questions] ntpd: time reset problem

Dave Hart davehart at gmail.com
Tue Sep 15 20:08:26 UTC 2009

On Sep 14, 9:33 pm, Unruh wrote:
> IF the latency is known to be symmetric ( which it is on an
> interplanetary system) then large latency is no problem. If it is not
> known to be symmetric and worse, both in and out latencies are variable,
> then it is pretty well impossible.

I believe the delays are asymmetric in large part due to vastly
different data rates from the earth to the ship (high rate) vs from
the ship (low rate).

Dave Hart

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