PSN-L Email List Message
Subject: Re: Time
From: J D Cooley cooleyj@....................
Date: Mon, 19 Aug 2002 21:22:53 -0700
Thank you, Keith. I'm sure this is the type of information that the others
on this list are needing. I will check it out when I get home and have
San Diego County
At 09:00 PM 8/19/02, Keith Payea wrote:
>The thing to look for is a time client that uses the full NTP spec. It uses
>four time stamps to calculate the transmission times so that they can be
>factored out of the time. Many free clients use Simple NTP, which doesn't
>use all four time stamps.
>A crucial part of NTP is also in the filtering. A good client will make
>many requests (up to once every 64 seconds) and filter the results over
>time. With a one-shot time request, an offset of 1 second isn't surprising.
>Most of them will give better performance if you run them for a while.
>I work for TrueTime, and we make Network Time Servers which synchronize to
>GPS and then provide NTP to a network. If you go to this page, you can
>download a free time client we have called WinSync. You have to register
>for it, but they won't bug you much. Here's the link:
>Another excellent site is the home of NTP at the University of Delaware:
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