[ntp:questions] frequency adjusting only

Unruh unruh-spam at physics.ubc.ca
Wed Apr 23 01:10:58 UTC 2008


Steve Kostecke <kostecke at ntp.org> writes:

>On 2008-04-22, Unruh <unruh-spam at physics.ubc.ca> wrote:

>> Steve Kostecke <kostecke at ntp.org> writes:
>>
>> ??? In my experience, on a Lan ntpd shows an internode offset of about
>> 5-15 usec, and on the internet (ADSL) an offset of about 200usec.

>Here's an aggregated plot of the node offsets on my LAN over the last 24
>hours. I see +3/-5 milliseconds, not anything near 5-15 microseconds.

>http://support.ntp.org/bin/viewfile/Users/SteveKostecke?rev=1;filename=typical_aggregate_lan_offsets.png

I agree those are pretty bad. HOw are they hooked up? It looks like one of
the hops is via a telephone modem!

See www.theory.physics/chrony/chrony.html
Mind you those are running with maxpoll 7 not maxpoll 10 (Its my lan and
ntp server, and I'll do what I want to.)


>-- 
>Steve Kostecke <kostecke at ntp.org>
>NTP Public Services Project - http://support.ntp.org/




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