nanog mailing list archives
Re: ntp config tech note
From: "Robert E. Seastrom" <rs () seastrom com>
Date: 20 May 2004 22:07:08 -0400
"Hannigan, Martin" <hannigan () verisign com> writes:
That's NTPv4 isn't it? I also prefer to use three peers vs. two. Always an odd number, greater than 1. Assumptions can't be made about the mathematics behind time, but in a reference model, odd numbers are better.
Actually, three is not enough; Mills says at least four. Diversity in manufacturer (and controlling organization if you can spare the cycles) is a big big plus. You may wish to read Dr. Mills' post to comp.protocols.time.ntp in the wake of the TrueTime bug of the 2001->2002 new year: http://groups.google.com/groups?hl=en&selm=3C32924F.994E1D01%40udel.edu ---Rob
Current thread:
- Re: ntp config tech note, (continued)
- Re: ntp config tech note Tony Li (May 23)
- Re: ntp config tech note Kevin Oberman (May 20)
- Re: ntp config tech note Joel Jaeggli (May 20)
- ntpd config tech note redux Randy Bush (May 20)
- Re: ntpd config tech note redux Steven M. Bellovin (May 20)
- Re: ntpd config tech note redux Petri Helenius (May 20)
- Re: ntpd config tech note redux Suresh Ramasubramanian (May 20)
- Re: ntpd config tech note redux Petri Helenius (May 20)
- Re: ntpd config tech note redux Steven M. Bellovin (May 20)
- Re: ntp config tech note Robert E. Seastrom (May 20)
- Re: ntp config tech note Michael Sinatra (May 20)