Re: NTP Sync Issue Across Tata (Europe)

[goemon--- via NANOG <nanog () nanog org>]

On Mon, 14 Aug 2023, Masataka Ohta wrote:
>  Mike Hammett wrote:
> >   " As such, the ultimate (a little expensive) solution is to have
> >   your own Rb clocks locally."
>
> >   Yeah, that's a reasonable course of action for most networks.
>
>  For most data centers with time sensitive transactions, at least.
>
> >   *sigh*
>
>    https://en.wikipedia.org/wiki/Atomic_clock
>    Modern rubidium standard tubes last more than ten years,
>    and can cost as little as US$50.
>
>   https://www.ebay.com/sch/i.html?_nkw=rubidium

> From this discussion it seems there is very little overlap between nanog 
membership and time-nuts.

Cheap Rb GPSDO are well known there. Even a bottom barrel OCXO GPSDO would 
provide significant protection against determined GPS attacker.

-Dan