nanog mailing list archives
Re: Time and Timing Servers
From: James R Cutler <james.cutler () consultant com>
Date: Thu, 11 Jul 2019 14:25:18 -0400
On Jul 11, 2019, at 11:23 AM, Mike Hammett <nanog () ics-il net> wrote: I'll look into Meinberg. I recent thread mentioned high-sensitivity receivers often allow GPS to work inside. Obviously "inside" has a lot of definitions. I will need this facility for the TDM timing signals. It's a central office, not a datacenter. I don't know that Internet-based NTP would be accurate enough for the timing signals that I need. Maybe, maybe not.
My experience with Dave Mills NTP algorithm is that, giving sufficient diversity in higher stratum sources, GPS versus Internet sources makes no practical difference. This assumes that you are concerned with Time for event logging and scheduling and not concerned with frequency and phase for clocking data on TDM instances. If you are worrying about backhoe fade — it’s consequences will most likely affect other things more strongly than Time differences. James R. Cutler James.cutler () consultant com GPG keys: hkps://hkps.pool.sks-keyservers.net
Current thread:
- Re: Time and Timing Servers, (continued)
- Re: Time and Timing Servers Ethan O'Toole (Jul 11)
- Re: Time and Timing Servers Mike Hammett (Jul 11)
- Re: Time and Timing Servers Majdi S. Abbas (Jul 11)
- Re: Time and Timing Servers Jay R. Ashworth (Jul 15)
- Re: Time and Timing Servers Brielle Bruns (Jul 15)
- Re: Time and Timing Servers Mike Hammett (Jul 11)
- Re: Time and Timing Servers Ryan Wilkins (Jul 11)
- Re: Time and Timing Servers Ethan O'Toole (Jul 11)
- Re: Time and Timing Servers Ethan O'Toole (Jul 11)
- Re: Time and Timing Servers Eric S. Raymond (Jul 11)
- Re: Time and Timing Servers Mike Hammett (Jul 11)
- Re: Time and Timing Servers James R Cutler (Jul 11)
- Re: Time and Timing Servers Eric S. Raymond (Jul 11)
- Re: Time and Timing Servers Forrest Christian (List Account) (Jul 11)
- Re: Time and Timing Servers Jay R. Ashworth (Jul 15)
- Re: Time and Timing Servers Mike Hammett (Jul 11)
- Re: Time and Timing Servers Måns Nilsson (Jul 11)