On Mon, 12 Jun 2006 07:54:26 -0400, Richard B. Gilbert wrote:

> James Ray wrote:
>> All,
>> Here is what we are after doing. Our networks team provides us with a
>> stratum 2 NTP server to use as well as our ISP providing us with 3
>> stratum 1 NTP servers. Ideally I would like a set of 4 peers run by me
>> syncing from the stratum 2 server provided on-site (since that gets it
>> data from the stratum 1 provided by the ISP) to reduce the load on the
>> stratum 1 servers. Unfortunately there are times when the on-site NTP
>> server goes a bit askew and steps out by up to 120ms (which isn't too
>> good for our uses).
> 
> I would choose to find out why the on-site server "goes a bit askew".
>   Machines running Linux or Windows have been known to lose clock
> interrupts when busy.  If your stratum two server is always slow when it's
> off and "steps ahead" and is running Linux or Windows that is probably the
> cause of your problem.
> 
> If that is the case, I would consider installing a better operating system
> on the server; say Solaris 10 X86 or ever replacing the server entirely. 
> I've used Sun Ultra 10 boxes with Solaris 8 and Solaris 9 and find them
> very well behaved.  I've also had good experience with Solaris
>   8 and 9 (X86 edition) on PCs.

Unfortunately this machine is outside my control, its running FreeBSD I
believe. I could 'jump over its head' and just use the stratum 1 servers
provided by the ISP but I still suffer the main problem of flip-flopping
between the two servers when there are very small differences between them.

-- 
James 'BR' Ray



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