[ntpwg] Documents, slides, etc. from WG meeting

Stewart Bryant stbryant at cisco.com
Wed Oct 24 13:28:40 UTC 2007


Heiko
> The one thing that really enables PTP to reach 
> an impressive accuracy level over an Ethernet/UDP connection is the fact 
> that it uses hardware time stamping and therefore requires specialized 
> hardware (if you want to benefit from that superior level of accurcacy).
>   
There is nothing to stop NTP doing h/w timestamping per se. The critical 
difference is that PTP (1588)  does on path correction through the use 
of the TC mechanism. If TC were added to NTP the two protocols would 
provide the same level of accuracy.

Stewart



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