Path: utzoo!news-server.csri.toronto.edu!rutgers!uwm.edu!cs.utexas.edu!usc!wuarchive!kuhub.cc.ukans.edu!paul
From: paul@kuhub.cc.ukans.edu
Newsgroups: comp.protocols.time.ntp
Subject: NTP experiment - large drifts on unsynced systems
Message-ID: <28957.27d60e49@kuhub.cc.ukans.edu>
Date: 7 Mar 91 15:56:25 GMT
Organization: University of Kansas Academic Computing Services
Lines: 13

Running VMS 5.4-1 on both platforms with Multinet 2.2F (which contains
NTP), a VAXstation 3100 (called Lane) and a VAX 9000-210 (called
Kuhub) had been up for more than 8 days, and more than 1 day,
respectively.

As we made some hardware changes on our Internet router Internet
became unreachable for about 105 minutes.

Both Lane and Kuhub used exactly the same stratum 1 servers.

At the end of the 105 minutes of isolation the time difference between
Lane and Kuhub was approximately 2 seconds. That's approximately a
relative drift of 1 part in 3000. Why am I seeing such a large drift?