Re: Acceptabelt NTP drift

From: Poul-Henning Kamp (none@phk--phk.freebsd.dk.lh.bsd-dk.dk)
Date: Mon 08 Feb 2010 - 18:26:02 CET

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To: bsd-dk@bsd-dk.dk
Subject: Re: Acceptabelt NTP drift 
From: "Poul-Henning Kamp" <none@phk--phk.freebsd.dk.lh.bsd-dk.dk>
Date: Mon, 08 Feb 2010 17:26:02 +0000

In message <none@d69a06e81002081012p6d2be801nafe8bf2840f83df0--mail.gmail.com.lh.bsd-dk.dk>, Thoma
s Elsgaard writes:
>Hej BSD'er
>
>Jeg sidder og kigger p=E5 en server (firewall), som hvert 10 sekund via
>NTP justere sin tid med ca -20 ms, er det normalt at tabe 20 ms over
>10 sek, eller er det bare mig som er sart?

-0.020/10 = -0.002000 = 2000 PPM

Det er 16 gange mere end NTPD er designet til at kunne styre.

Hvilken kerne ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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