Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!rutgers!mailrus!uwmcsd1!ig!agate!ucbvax!UDEL.EDU!Mills From: Mills@UDEL.EDU Newsgroups: comp.protocols.tcp-ip Subject: Re: Installing TCP-IP on a CTIX unix system Message-ID: <8809211350.aa13283@Huey.UDEL.EDU> Date: 21 Sep 88 17:50:48 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 18 Larry, Smile when you say "timewarp." I must assume the difference between the eastern and western versions is that they assume timing is derived from line-frequency clocks and that the means used by the power grid east of the Rockies to synchronize is different from that used westward. In the east, the master clock is controlled manually from a site in Ohio, while in the west, the system is closed-loop and automatic. My measurements disclose a factor of ten reduction in jitter and wander of western clocks with respect to eastern clocks, which show daily excursions up to five seconds in summertime. I can tell you about Quebec clocks and Texas clocks and even German clocks, all of which use different mechanisms. I assume special versions will be produced for these systems as well. As for me, I'd use NTP and a crystal-derived clock anyway. Dave