[time-nuts] Low-long-term-drift clock for board level integration?

[Jim Lux]

On 2/20/12 8:34 AM, Achim Vollhardt wrote:
> Hi Bill,
> what about White Rabbit?
>
> http://www.ohwr.org/projects/white-rabbit/wiki/Description
>
> Successor of NTP.. PTP: precision time protocol.
>
> It delivers Gigabit Ethernet and precise (<1nsec) timing over singlemode
> fiber. You would have to connect all devices into a fiber network
> instead of a copper based network and all switches in between would have
> to be WR compatible.. but this could solve your problem.
>
> Javier Serrano (one of the developers) is also on this list.. he might
> add/correct me.
>

I think the OP needs something over a large geographical area, and I 
don't know that PTP/1588 would work through a routed "internet" kind of 
connection.