[169014] in North American Network Operators' Group
Re: Need trusted NTP Sources
daemon@ATHENA.MIT.EDU (Jay Ashworth)
Sun Feb 9 15:45:51 2014
Date: Sun, 9 Feb 2014 15:45:19 -0500 (EST)
From: Jay Ashworth <jra@baylink.com>
To: NANOG <nanog@nanog.org>
In-Reply-To: <20140209203033.GA14868@pob.ytti.fi>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
----- Original Message -----
> From: "Saku Ytti" <saku@ytti.fi>
> > That's only true if the two devices have common failure modes,
> > though, is it not?
>
> No, we can assume arbitrary fault which causes NTP to output bad time. With
> two NTP servers it's more likely that any one of them will start doing
> that than with one alone. And if any of the two start doing it, you don't
> know which one.
Hey, waitaminnit! I saw you palm that card. :-)
If I'm locked to 2 coherent upstreams and one goes insane, I'm going to
know which one it is, because the other one will still match what I already
have running, no?
Or do I understand NTP less well than I think?
Cheres,
-- jra
--
Jay R. Ashworth Baylink jra@baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII
St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274
