[Linuxptp-users] Should Linux PTP syn the clock used by date between PCs?

[Gil G. <Gil...@ha...>]

Hi,

If 2 PCs on the same Lan are running Linux PTP, should the clock that is used by "date" be the same after a while?

Here is my use case:

*         I am using 2 Linux CentOs7 PCs.

*         I have used the date -s @[some value] to make sure they have an offset of few seconds between them.

*         I am running ptp4l -I eth0 on both of my PCs.

*         I can see that PC 1 becomes slave, and PC 2 become master using WireShark.

*         I have disabled NTP on both PCs by stopping the chronyd service (to make sure NTP will not sync my PCs clock).

*         I am running "while true; do date +%s; sleep 1; done" on both machines to see the time continuously.

*         I don't see the time being sync between them.

*         When NTP is enabled, I do see the time being sync between them.

Please let me know what I am missing here.

Thanks,
Gil.