option masterOnly is deprecated, please use serverOnly instead ptp4l[21055.947]: ethtool ptp4l[21055.947]: selected /dev/ptp2 as PTP clock ptp4l[21055.951]: port 1 (eth2): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[21055.952]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[21055.952]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[21055.953]: ethtool ptp4l[21062.988]: port 1 (eth2): LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[21062.988]: selected local clock 000db9.fffe.60a716 as best master ptp4l[21062.988]: port 1 (eth2): assuming the grand master role