option masterOnly is deprecated, please use serverOnly instead ptp4l[234575.671]: ethtool ptp4l[234575.672]: selected /dev/ptp2 as PTP clock ptp4l[234575.677]: port 1 (eth2): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[234575.677]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[234575.678]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[234575.678]: ethtool ptp4l[234583.287]: port 1 (eth2): LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[234583.288]: selected local clock 000db9.fffe.60aa6e as best master ptp4l[234583.289]: port 1 (eth2): assuming the grand master role