nanog mailing list archives

Re: Leap second tonight


From: Peter Beckman <beckman () angryox com>
Date: Tue, 17 Mar 2009 13:30:15 -0400

On Tue, 17 Mar 2009, Valdis.Kletnieks () vt edu wrote:

They may suck for being a Stratum-1/2 server, but even the most jittery
Cisco is still far and away good enough to serve up a ntpdate so that an
end-user PC-class machine is in the right minute.

 As long as the end-user is made aware that the accuracy of said NTP clock
 is +/- 30.000 seconds (or whatever jitter might exist).  Seems kind of
 ridiculous to use an NTP source that is, for many purposes, wildly
 inaccurate.  For my purposes, wildly is more than +/- 0.1 seconds.  Trying
 to troubleshoot a problem, network or server, where the timestamps on each
 server/router/device vary inconsistently, is like walking on broken
 fluorescent bulbs -- painful and dangerous to one's health.

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Peter Beckman                                                  Internet Guy
beckman () angryox com                                 http://www.angryox.com/
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