After installation of a virtual machine with yum install linuxptp input command systemctl start ptp4l, next reoccupy systemctl status ptp4l view state, found that is failed,
My card support three soft stamp, does not support hard stamp,
Try to use ptp4l -i ens33 - m - S and ptp4l -i ens33 - m - S - S master-slave synchronization, the clock has been set selected local clock 000 c29. Fffe. F364e6 as the best master