Re: NTP isn't that much better
"NTP on a WAN typically give you accuracies of 10ms or better (so around 100 times improvement)"
With NTP, asymmetric routes and network congestion can cause errors of 100 ms or more. As stated above for accurate time you need PTP. PTP eliminates Ethernet latency and jitter issues through hardware time stamping to cancel out a measured delay between nodes at the physical layer of the network. Accuracy in the range of 10 to 100 nanoseconds can be achieved.
Biting the hand that feeds IT
