[ntp:questions] NIST vs. pool.ntp.org ?

Hans Jørgen Jakobsen hjj at wheel.dk
Sun Mar 31 17:19:35 UTC 2013


On Thu, 28 Mar 2013 21:21:55 GMT, Harlan Stenn wrote:
> On Thu, Mar 28, 2013 at 5:57 AM, Rob <nomail at example.com> wrote:
>> so you will need to write an adaptive
>> algorithm that recognizes what is happening here, and send the queries
>> quickly enough (I would say at least two per second, maybe 4) to force
>> the "active user" algorithm to kick in.
>
> Sending at a rate of more than 1 packet every 2 seconds or more than 8
> packets per 64 seconds will trigger KOD responses.
>

Use sufficiently many servers so the rate to each is below radar.
Keep list of latest servers and their roundtip time.
Sort list by roundtrip time.
Use them in descending order(Use worst to kick link up in speed)
Hope there are some "good" measurements in the last measurements.
Update list.

/hjj



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