[ntp:questions] What is the "best" synchronization possible over the network?

ask ask at develooper.com
Tue Mar 10 07:50:12 UTC 2009

eugene... at sbcglobal.net wrote:

> On Feb 10, 5:30 pm, n... at tla.org (John Ioannidis) wrote:
> > The problem setup: two locations, both within the United States, neither
> > has roof access so no GPS reception is possible.  How do you synchronize
> > them with better than 50-microsecond accuracy?  
> You might want to consider a CDMA receiver such as these units from
> EndRun Technologies:
> http://www.endruntechnologies.com/network-time-source.htm
> http://www.endruntechnologies.com/network-time-server.htm

I know of one installation using those and I noticed that they didn't
support the recent leap second very well (they were off by a second
until an admin did something days later).  I don't know if it's caused
by the device, the driver, ntpd, bad configuration or something else

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