Re: [Linuxptp-users] Want to reduce offset (which is distance dependant) between boundary clocks.

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

On Wed, Jan 20, 2016 at 02:35:26PM +0530, Aniket Hendre wrote:
> So you want to say that instead of steer phy clock of master to synchronize
> with its system clock, it is better to steer phy clock by using direct PPS
> feeding through intel i210  card. So I don't need to feed PPS to my master
> machine through serial port (correct me if i am wrong).

Yes, that is the idea.  The i210 has two input pins at CMOS level, and
the most recent Linux kernels support time stamps of external signals
in the i210 driver.

(It does not solve your 2/20 km problem, though.)

Thanks,
Richard