This flag both triggers and reports the status of writing the current SNMP group configuration out to the file named in usrSnmpConfigFileName. An admin cares because setting it to save commits pending SNMP settings to persistent storage, it reads back saving while the write is in progress, and attempting another change during that window returns a badValue error. For example, an admin who just changed community settings would set this to save and then poll it until it returns to normal before making further SNMP changes.