GPS Module for Oscilloscope

[cdev]

For use as a reference for test equipment NTP is utterly useless.

Always remember the following list:
Best NTP accuracy: 1ms
Best PtP accuracy: 1us
There is a PtP extension in the making which has sub-ns accuracy.

This is what I was getting at. It is what it is..  Likely could be improved a great deal.

What kind of internal switching, router etc, would be required to support PTP on a LAN?

I don't even know re: gigabit Ethernet or faster, does that reduce or increase latency?

I know that "bufferbloat" is at issue when trying to move packets around any kind of lan or wan.