nanog mailing list archives

Re: Picking outside NTP servers (Re: NTP Issues Today)


From: George Herbert <george.herbert () gmail com>
Date: Tue, 20 Nov 2012 14:07:07 -0800

On Tue, Nov 20, 2012 at 1:53 PM, Jay Ashworth <jra () baylink com> wrote:
....
For myself, I usually pick the first three in us.pool.ntp.org, tick and tock,
time.nist.gov, and a couple of regionally appropriate large universities.

As this week indicated, perhaps tick and tock are not sufficiently far
apart to be a good redundancy choice from a geographical failover
point of view or common mode failure point of view.

As part of a set of 8 servers as you indicate later, perhaps ok, but I
fear for people who think "Ok, I want redundancy, so... Tick and
Tock."  Which, it turns out, was significant quantities.

-- 
-george william herbert
george.herbert () gmail com


Current thread: