Re: A lurker surfaces

From: Ashley Yakeley <ashley_at_SEMANTIC.ORG>
Date: Tue, 02 Jan 2007 13:44:17 -0800

M. Warner Losh wrote:
> GPS is also used for UTC today. Many ntpd's are stratum 1 tied to a
> GPS receiver.

I imagine two parallel time infrastructures, one synchronised to TAI,
the other to "rubber" mean universal time. Stratum 0 devices for the
latter would probably have to use radio.

So, sure, there's an infrastructure cost for a sensible time of day...

> ntpd is UTC, by definition.

I wonder how easily NTP could be generalised to transmit different
timescales without too much confusion? Using different UDP port numbers
might be one option.

--
Ashley Yakeley
Received on Tue Jan 02 2007 - 13:44:39 PST

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