Re: [Linuxptp-users] HWTSTAMP_TX_ONESTEP_SYNC vs HWTSTAMP_TX_ON

[Richard C. <ric...@gm...>]

On Mon, Jul 29, 2013 at 01:34:41PM +0000, Ledda William EXT wrote:
> 
> From my understanding of the PTP protocol, the one-step clock is "significant" only for the MASTER, e.g. it doesn't send the FOLLOW_UP because the "tx timestamp" is included in the SYNC. Is it correct? 

Yes and no.

This statement is true for E2E delay mechanism.

Theoretically, one step is also possible for the P2P mechanism, but I
don't think any hardware implements that yet (and neither does
linuxptp).

HTH,
Richard