Seth, My point exactly. Use GPS as primary, and have anti-PS back up, and if you want automatic fail over, do that in an intermediate server on your site that makes a conscious test and decision to fail over to regular NTP
-mel via cell > On Aug 9, 2023, at 5:01 PM, Seth Mattinen via NANOG <nanog@nanog.org> wrote: > > On 8/9/23 3:25 PM, Forrest Christian (List Account) wrote: >> Note that NIST operates a pool of 24 time servers for public use. These >> are spread across four different locations in two different states. My >> understanding is that they all get their time directly from the official >> NIST clocks without GPS or NTP being involved. > > I used to jump through all the hoops for that but honestly I like the > appliances better (they are also PTP grandmaster clocks). I can always > disable the GPS inputs if any of the doom and gloom actually comes to pass. > > ~Seth
