Cost effective time servers

Forrest Christian (List Account) lists at packetflux.com
Tue Jun 25 02:33:03 UTC 2019


I would submit that the proper use of a GPS receiver is for alignment
of the start of the second to a more precise value than can be
distributed across an asymmetric network like the Internet.  The
actual 'time label' for that second doesn't necessarily need to come
from GPS at all.  For security reasons, it's probably a good thing to
make sure you validate the data received from GPS in any case.


On Mon, Jun 24, 2019 at 8:23 PM Chris Adams <cma at cmadams.net> wrote:
>
> Once upon a time, Jay Hennigan <jay at west.net> said:
> > The data from GPS includes the offset value from UTC for leap-second
> > correction. This should be easily included in your time calculation.
>
> Not only that, but at least some GPS receivers/protocols notify of
> pending leap seconds, so software can properly distribute the
> notification in advance.
>
> --
> Chris Adams <cma at cmadams.net>



-- 
- Forrest



More information about the NANOG mailing list