Description: The value of tmnxOamPmCfgMeasIntvlsStored specifies the maximum number
of historical measurement intervals which can be read using SNMP Get
operations.

For example, suppose tmnxOamPmCfgMeasIntvlsStored is 32 in the row
indexed by {'mySess1', 'mi15Minutes(2)'}.  Suppose 'mySess1' has a DMM
test which has been running for at least 8 hours (i.e. 15
minutes/interval * 32 intervals).  Then, the number of SNMP accessible
15 minute intervals for the test is shown in the following table.

Test State  Number of SNMP Accessible 15 Minute Intervals
----------  -----------------------------------------------------------
running     33 (i.e. 32 historical intervals, and the current interval)
stopped     32 (i.e. 32 historical intervals)

At the moment when a test is stopped, the current interval becomes the
newest historical interval.  If that makes the total number of
historical intervals larger than tmnxOamPmCfgMeasIntvlsStored, the
oldest historical interval is made SNMP inaccessible.

In a typical configuration, older statistics are recorded in a local
file (see tmnxOamPmCfgMeasIntvlAccntPolicy).  Statistics in the file
are not SNMP accessible.

The range and default of tmnxOamPmCfgMeasIntvlsStored varies with the
row's measurement interval duration index value, as follows.

tmnxOamPmCfgMeasIntvlDuration Intvls Stored Range Intvls Stored Default
----------------------------- ------------------- ---------------------
'mi5Minutes(5)'                             1..96                    32
'mi15Minutes(2)'                            1..96                    32
'mi1Hour(3)'                                1..24                     8
'mi1Day(4)'                                  1..1                     1

The following limit is enforced per session (where 'S' is the session
name):
   tmnxOamPmCfgMeasIntvlsStored.S.mi5Minutes(5) +
   tmnxOamPmCfgMeasIntvlsStored.S.mi15Minutes(2) <= 96.