This identifies the unique threshold entry in
cds1AlarmThresholdGroupTable.
The number of entries allowed is implementation
specific.
The values set in the respective threshold objects
determine the values which when exceeded in a 15
minute or 24 hour window, will raise alarm by
generating 'cds1StatThresholdAlarm' trap.
An entry is created by setting
'cds1AlarmThresholdGroupRowStatus' to 'createAndGo(4)'
and is deleted by setting it to 'destroy(6)'.