option masterOnly is deprecated, please use serverOnly instead ptp4l[255122.992]: ethtool ptp4l[255122.992]: selected /dev/ptp2 as PTP clock ptp4l[255122.996]: port 1 (eth2): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[255122.997]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[255122.997]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[255122.998]: ethtool ptp4l[255130.222]: port 1 (eth2): LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[255130.223]: selected local clock 000db9.fffe.60a72e as best master ptp4l[255130.223]: port 1 (eth2): assuming the grand master role