[63278] in North American Network Operators' Group
Re: NTP, possible solutions, and best implementation
daemon@ATHENA.MIT.EDU (Gary E. Miller)
Thu Oct 2 16:26:25 2003
Date: Thu, 2 Oct 2003 13:21:16 -0700 (PDT)
From: "Gary E. Miller" <gem@rellim.com>
To: Eliot Lear <lear@cisco.com>
Cc: Michael.Dillon@radianz.com, nanog@merit.edu
In-Reply-To: <3F7C7AD6.4020702@cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
Yo Elliot!
The Defense Department sometimes runs jamming tests on GPS just to see
what would happen. They did this in Phoenix last year. They also
have been known to do this in LA and San Diego for up to 15 minutes
at a time.
AOPA (Airplane Owners and Pilots Association) has written on this topis
a few times. Needless to say this really gets pilots agitated....
Lot's of GPSes also failed on Y2K and the GPS epoch rollover.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701
gem@rellim.com Tel:+1(541)382-8588 Fax: +1(541)382-8676
On Thu, 2 Oct 2003, Eliot Lear wrote:
> Michael.Dillon@radianz.com wrote:
> > Beware the single point of failure. If all your clocks come from GPS, then
> > GPS is the SPOF.
>
> Can you describe what would be involved to cause this sort of single
> point of failure to fail?
