On Wed, May 19, 2021 at 10:31:00PM +0300, Joseph Matan wrote: > *Platform:* > > My board is running with KSZ9477 switch (with HW timestamping support) on > linux 4.19.
I guess that the time is read over MDIO. If so, that explains the jitter in the measured offsets. HTH, Richard _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users