Article View: comp.protocols.time.ntp
Article #632NTP convergence rates
From: Todd Pisek
Date: Wed, 06 Mar 1991 18:42
Date: Wed, 06 Mar 1991 18:42
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1063 bytes
I am fairly new to this ntp stuff. We have a need to maintain time to a 1 ms accuracy and to converge to this accuracy within minutes of startup. I have browsed the NTP version 3 specification, especially the local clock sections. I realize there is a qualatative relationship between the convergence rate and the latency involved in obtaining the local time. I also suspect there is a relationship between the consistancy of the latency and accuracy. What I would like to know is if anyone has hard numbers relating the statistical properties of the local clock access path to convergence rate and accuracy. Todd
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!uakari.primate.wisc.edu!caen!uwm.edu!bionet!agate!ucbvax!CHERRY.CRAY.COM!trpShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!uakari.primate.wisc.edu!caen!uwm.edu!bionet!agate!ucbvax!CHERRY.CRAY.COM!trp From: trp@CHERRY.CRAY.COM (Todd Pisek) Newsgroups: comp.protocols.time.ntp Subject: NTP convergence rates Message-ID: <9103061842.AA06818@cherry07.cray.com> Date: 6 Mar 91 18:42:13 GMT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: inet Organization: The Internet Lines: 10