[ntp:questions] Is dispersion > jitter in all situations
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Null at BlackList.Anitech-Systems.invalid
Mon Jan 4 20:47:35 UTC 2010
On 1/4/2010 7:30 AM, B wrote:
> An indicator of expecting time is important and I know
> about the error bounds, but I want to use a value(jitter)
> as an indicator of the expecting time relative offset.
> The jitter isn't introduced before NTPv4 and where I am
> doing my master thesis they are using NTPv3(RFC-1305).
> Is it possible to use dispersion relative offset as an
> indicator of expecting time?
> My idea, peer.dispersion represents the maximum error in
> offset and maximum error of half the roundtrip delay.
> If dispersion is bigger than jitter, ie jitter is bounded
> by dispersion, then dispersion could be used as an
> indicator of expecting time relative offset.
Dispersion is, the diff to stratum 0 (UTC).
Offset is the diff to combined offset from the selected
truechimer peers reference times.
Jitter is relative to that combined peer offset,
not to strat 0 (UTC).
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