| Re: [chrony-users] Possible to get sub-millisecond accuracy? |
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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] Possible to get sub-millisecond accuracy?
- From: Denny Page <dennypage@xxxxxx>
- Date: Tue, 13 Jun 2017 12:40:17 -0700
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At the moment, I would unfortunately have to say no. The vendor has committed to fixing the issue, but it’s been outstanding for 7-8 months now.
I can certainly recommend the LeoNTP units. They are incredibly stable: my dedicated monitoring system (i210) is current tracking the Leo units at an average standard deviation of ~33ns for locally attached (100Mb), and ~36ns for across a switch (1Gb). Even my server (i211) holds ~42ns across the switch. Good gear.
Denny
> On Jun 13, 2017, at 06:01, Miroslav Lichvar <mlichvar@xxxxxxxxxx> wrote:
>
> On Fri, Jun 09, 2017 at 07:31:24AM -0700, Denny Page wrote:
>> A great deal depends upon the server side ntp implementation which is why I asked which device he was using. I have several ntp devices under test, including one that also supports ptp. While quite accurate in the service of ptp, it's service of ntp has errors of up to 3ms. I have been working with the vendor on the issue.
>
> Beside the LeoNTP unit, are there any NTP devices using their current
> firmware versions that you would recommend?
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