The maximum number of hours of data to be kept per LPD
group. The LPD group statistics will be kept in an hourly
bucket. At the maximum there can be two buckets.
The value of 'one' is not advisable because the group will close
and immediately be deleted before the network management station
will have the opportunity to retrieve the statistics.
The value used in the rttMplsVpnLpdGroupStatsTable to
uniquely identify this group is the
rttMonStatsCaptureStartTimeIndex.
Note: When this object is set to the value of '0' all
rttMplsVpnLpdGroupStatsTable data capturing will be shut off.