[ntp:questions] Re: Can sychronize with a slightyly different NTP versios

Richard B. Gilbert rgilbert88 at comcast.net
Sat Mar 4 00:21:03 UTC 2006

David Woolley wrote:

> In article <8oudnUzhLp1PNJXZRVn-iw at comcast.com>,
> Richard B. Gilbert <rgilbert88 at comcast.net> wrote:
>>>server  burst iburst
>>server              # Local clock, unit 0
>>fudge stratum 10
>>It would probably be a lot easier and consume far fewer resources to use 
>>  rdate in a cron job.
> That depends on what level of phase and freqeuncy error are tolerable.

With an unsynchronized local clock as a server, how much could he care 
about phase and/or frequency error?  Ntpd can hold a client in really 
tight synchronization (100 usec or better) IF (big IF) it has a stable 
reference; e.g. a server synchronized to a GPS reference can synchronize 
clients within a few microseconds.  I've never had reason to try to 
synchronize to an unsynchronized local clock but I would not expect 
frequency or phase error levels to brag about.

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