When this object is read the current state is returned.
idle(2) indicates that there is no save in progess.
complete(4) indicates that the last save operation is completed.
Setting the value to save(1), will write the current config block
since the last save to the flash memory with backup, for saving
without backup saveNoBackup(6) can be used.
If the save is successful this variable will return the state
'complete' else it will return 'failed'. In case of failure,
to read the reason for failure use the agSaveTable.
Once the operation is completed or the agSaveTable is read ,
the save buffer needs to be freed and the agSaveState
should be set back to 'idle' state so others can issue the save
command via SNMP.