The RequestedDeliveryGuarantee parameter with DataType BrokerTransportQualityOfService specifies the delivery guarantees the DataSetReader negotiates with the broker for all messages received. The DataType BrokerTransportQualityOfService is defined in 6.4.2.2.5.

The value NotSpecified_0 is not allowed on the DataSetReader. If the selected delivery guarantee cannot be applied, the DataSetReader shall set the state to Error_3.