[c-nsp] NTP Config

[Tony Li]

> I tend to use tick and tock (.usno.navy.mil) for my stratum-2 servers.
> There are others which allow public access, but why not just go to the
> horse's mouth?


The horse can pretty far away.

If you're topologically distant, then access to tick and tock might  
have substantial amounts of jitter that might affect the quality of  
time that you're able to maintain.  Other nearby servers may provide  
you better chime.

Tony