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Date:      Tue, 7 Jul 2009 15:54:04 +0000 (UTC)
From:      naddy@mips.inka.de (Christian Weisgerber)
To:        freebsd-net@freebsd.org
Subject:   Re: NTP - default /etc/ntp.conf
Message-ID:  <h2vr2s$2bf6$1@lorvorc.mips.inka.de>
References:  <20090702084608.GA59311@roberto-al.eurocontrol.fr> <200907020955.aa73037@walton.maths.tcd.ie> <h2t1pr$28me$1@lorvorc.mips.inka.de> <20090706233701.GA30824@ringworld.transsys.com>

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Louis Mamakos <louie@transsys.com> wrote:

> > Shouldn't ntpd have figured out by now that the clock is gone (I
> > unplugged it yesterday) and have switched into orphan mode?
> 
> It seems like orphan mode is something that you'd run on an ensemble
> of local machines to ensure that they continue to be synchronized with
> each other because that's deemed important for some application need.
> I don't understand why you'd go to all this trouble on a single host
> to simulate NTP clock synchronization when in fact the local clock
> isn't synchronized to anything?

This particular setup is a single server with a bunch of clients.
Even if the server loses its reference clock, the clients should
all continue to have the same time.  If the server reports that it
is unsynchronized, the clients will ignore it and drift apart.

Now, in my test case the server keeps thinking that it is synchronized
to a dead refclock, which is fine for the clients.  But I still
wonder why it didn't switch into orphan mode.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de




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