The Juniper RPM feature maintains a set of the most recent probe
measurements & provides the same calculations over that collection
as provided over a test (ie, average, standard deviation, etc). This
data is available via the jnx-rpm mib or via the CLI/XML. The
number of samples maintained in this moving collection is specified
by this object. This value must be less than the number of samples
maintained in the history table (ie, pingCtlMaxRows).