NTP

NTP/4/GRADUAL_SET_TIME

NTP/4/LEAP_CHANGE

NTP/4/PEER_MAX_ASSOC

NTP/4/PEER_SELE

NTP/4/REFCLK_EVENTS

NTP/4/SOURCE_LOST

NTP/4/STEP_GET_TIME

NTP/4/STEP_SET_TIME

NTP/4/STRATUM_CHANGE

NTP/4/TIMER_INIT