Date: Tue, 19 Dec 2006 08:57:42 -0800 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Michael Proto <mike@jellydonut.org> Cc: freebsd-stable@freebsd.org Subject: Re: ntpd flipping between PLL and FLL mode Message-ID: <20061219165741.GA40101@icarus.home.lan> In-Reply-To: <45880BA6.80907@jellydonut.org> References: <20061219124151.GA33385@icarus.home.lan> <20061219132032.GA66632@slackbox.xs4all.nl> <45880BA6.80907@jellydonut.org>
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On Tue, Dec 19, 2006 at 10:56:22AM -0500, Michael Proto wrote:
> An alternate workaround I've discovered is to use a maxpoll of 9 in
> /etc/ntp.conf:
>
> server rolex.peachnet.edu maxpoll 9
>
> Since implementing this I haven't seen any of the FLL/PLL flips in my logs.
How would decreasing the polling time fix this? I do not understand
the semantics/behaviour of NTP very well.
Taken from the manpage:
maxpoll maxpoll
These options specify the minimum and maximum poll intervals for
NTP messages, in seconds to the power of two. The maximum poll
interval defaults to 10 (1,024 s), but can be increased by the
maxpoll option to an upper limit of 17 (36.4 h). The minimum
poll interval defaults to 6 (64 s), but can be decreased by the
minpoll option to a lower limit of 4 (16 s).
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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