option masterOnly is deprecated, please use serverOnly instead ptp4l[15914.375]: ethtool ptp4l[15914.375]: selected /dev/ptp2 as PTP clock ptp4l[15914.379]: port 1 (eth2): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[15914.380]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[15914.380]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[15914.380]: ethtool ptp4l[15921.736]: port 1 (eth2): LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[15921.737]: selected local clock 000db9.fffe.60aa6e as best master ptp4l[15921.737]: port 1 (eth2): assuming the grand master role