[Outages-discussion] [outages] Fwd: NTP Issues Today

[Jay Ashworth]

----- Original Message -----
> From: "Jeremy Chadwick" <jdc at koitsu.org>

> Quite scary, for the following reason:
> 
> $ ntpq -c peers tick.usno.navy.mil
> remote refid st t when poll reach delay offset jitter
> ==============================================================================
> *REFCLK(45,0) .IRIG. 0 l 9 16 377 0.000 -0.001 0.001
> +REFCLK(45,1) .IRIG. 0 l 8 16 377 0.000 -0.006 0.001
> +10.1.4.40 .IRIG. 1 u 22 64 377 0.146 0.024 0.013
> -10.1.4.51 0.0.0.0 2 u 48 64 377 1.516 -0.228 0.301
> 
> Note that both of their servers prefer to sync off of local hardware
> time devices (specifically dedicated hardware with IRIG/AFNOR TCRs in
> them).

And very specifically, an ensemble of hydrogen masers, resonant at, IIRC,
1420MHz:

http://www.usno.navy.mil/USNO/time/master-clock/u.s.-naval-observatory-hydrogen-masers

Yes; if tick and tock go bad, there's something very, very wrong. 

Judah Levine is at their counterpart in Colorado, but probably heard about 
it.  :-)

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra at baylink.com
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