[ntp:questions] Re: total roundtrip delay + synch distance

David L. Mills mills at udel.edu
Thu Sep 4 03:06:21 UTC 2003


The synchronization distance includes quantities in addition to the
roundtrip delay. See the architecture briefing op cit. As is the
roundtrip delay, the distance is accumulative from the primary source.


Drk Ryan wrote:
> The NTP packet header includes a 'Synchronisation Distance' field
> which is described as indicating the total roundtrip delay to the
> primary reference source.
> For the case of a machine operating at stratum-3 does the primary
> reference source refer to the stratum-2 machine or the
> root(stratum-0)?

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