The maximum number of history lives to record. A life
is defined by the countdown (or transition) to zero
by the rttMonCtrlOperRttLife object. A new life is
created when the same conceptual RTT control row is
restarted via the transition of the
rttMonCtrlOperRttLife object and its subsequent
countdown.
The value of zero will shut off all
rttMonHistoryAdminTable data collection.