> To do PTP "right" requires every switch to support it and a NIC with hardware timestamps.
I agree, but PTP will in fact work over regular commercial switches on a LAN. The problem is that it will introduce jitter if there's other traffic on the network, but as long as the paths from master to slave (terms used in the standard) remain symmetric, you can filter this out and achieve performance almost as good as if you were using PTP transparent switches.
I agree, but PTP will in fact work over regular commercial switches on a LAN. The problem is that it will introduce jitter if there's other traffic on the network, but as long as the paths from master to slave (terms used in the standard) remain symmetric, you can filter this out and achieve performance almost as good as if you were using PTP transparent switches.