The value of tmnxPtpClockRecoveryState indicates the state of the clock
recovery process on a PTP system. The various states are:
notApplicable (0) - The system is not attempting to recover a clock
initial (1) - The system is configured to recover a clock,
but not enough information has yet been received
to adjust the local clock to match a master
clock
acquiring (2) - The system has enough information to attempt
clock recovery, and has started the process of
adjusting its local clock frequency to match the
master clock
phaseTracking (3) - The system has adjusted its local clock to the
approximate frequency of the master clock, and
is adjusting the local clock to minimize the
phase difference between the two clocks
locked (4) - The system is locked to the chosen master clock
and the phase error between the master clock and
the local clock is relatively small
holdover (5) - The system has stopped receiving useful
information from the chosen master clock, and is
maintaining the last estimated frequency for its
local clock