option masterOnly is deprecated, please use serverOnly instead ptp4l[7793.446]: ethtool ptp4l[7793.446]: selected /dev/ptp2 as PTP clock ptp4l[7793.450]: port 1 (eth2): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[7793.450]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[7793.451]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[7793.451]: ethtool ptp4l[7800.989]: port 1 (eth2): LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[7800.989]: selected local clock 000db9.fffe.60aa6e as best master ptp4l[7800.989]: port 1 (eth2): assuming the grand master role