[time-nuts] Win XP and NIST time
Hal Murray
hmurray at megapathdsl.net
Tue Mar 26 17:04:53 EDT 2013
> within network latency of around a second or so
A second is a long time/distance for a packet.
The measured round trip time from California to Maine is under 100 ms.
Sanity check: The US is 3000 miles east-west. A mile is 5000 feet. The
speed of light is 1 ft/ns in vacuum. So that's ballpark of 15ms one way, 30
ms round trip.
Fiber is slower than vacuum and fibers don't take the direct path. A factor
of 3 seems reasonable.
--
These are my opinions. I hate spam.
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