This object contains an appropriate value
to be used for cdpvmIndex when creating entries
in the cdpvmTable. The value 0 indicates that all
entries are assigned.
A management application should read
this object, get the (non-zero) value and use
same for creating an entry in the cdpvmTable.
After each retrieval and use, the agent should modify
the value to the next unassigned index.
After a manager retrieves a value the agent will
determine through its local policy when this
index value will be made available for reuse. A
suggested mechanism is to make an index available
when the corresponding entry is deleted.