Fwd: RE: [e2e] Clock Synchronization Protocols/Algorithms

[David L. Mills]

Hesham,

You will find papers, reports, briefings, bibliographies and links at
the NTP Project page linked from www.ntp.org. Several papers and reports
discuss NTP countermeasures for network jitter, oscillator wander and
the Byzantine military. The link to Italy used to be the worst -
sometimes over one second peak-peak on weekdays.

Dave

"Adrian J. Hooke" wrote:
> 
> >From: Bob Braden <braden at ISI.EDU>
> >To: braden at ISI.EDU,
> >     end2end-interest at postel.org,
> >     helbakou at nortelnetworks.com
> >Subject: RE: [e2e] Clock Synchronization Protocols/Algorithms
> >X-Sun-Charset: US-ASCII
> >Sender: end2end-interest-admin at postel.org
> >X-BeenThere: end2end-interest at postel.org
> >X-Mailman-Version: 2.0.1
> >List-Help: <mailto:end2end-interest-request at postel.org?subject=help>
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> >Date: Wed, 31 Oct 2001 21:03:29 GMT
> >
> >
> >I expect that Father Time will come out of hibernation at any moment,
> >but...
> >
> >NTP devotes considerable effort to providing the best possible time in
> >(even) the presence of very noisy data.  If you are working in a noisy
> >environment, it would surprise me if you can do much better than Dave's
> >20 years of experimentation have produced.  If you are working an a
> >quiet environment, with no Byzantine players and little or no jitter,
> >NTP should provide essentially the theoretical minimum error.
> >
> >Bob Braden
> ...