[time-nuts] Timing performance of servers

[Bob Camp]

Hi

Not to mention the issues with hardware time stamping over large scale / multi vendor networks. As soon as you cross your property line, things start to get messy….

Bob

On Oct 27, 2012, at 4:37 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:

> On 10/27/2012 09:06 PM, Sarah White wrote:
>> Sorry to post such a long thing on the subject. Most of the work I do
>> with accurate time involves network synchronization.
>> 
>> Really, the NTP / SNTP protocol isn't nearly as high performance as
>> "Precision time protocol" --- PTP is the latest technology to come out
>> of the "network time foundation", and NTP protocol has simply been
>> around longer and as such, it is better known:
>> 
>> http://networktimefoundation.org/projects/
> 
> The reason for this thread was not to necessarily get the best possible time, but to get away from severely affected time that was causing the dataloss issues.
> 
> The one flaw that NTP has that motivated PTP was lack of hardware time-stamps. There are those that have implemented hardware time-stamping to NTP.
> 
> It's unfortunate to compare NTP and PTP when it should be comparing software time-stamping and hardware time-stamping.
> 
> Cheers,
> Magnus
> 
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