Errata exists for this version of the document.

Specifies the interval in milliseconds with Data Type Duration at which the Publisher shall send the DataSetMetaData to the MetaDataQueueName. A value of 0 or any negative value shall be interpreted as infinite interval.

The broker transport shall publish all messages with an expiration time that is equal or greater than this value.

If the update time is infinite, a broker transport shall attempt to negotiate message retention if possible. In this case the DataSetMetaData is only sent if the ConfigurationVersion of the corresponding DataSetMetaData is changed and DataSetWriters shall try to negotiate AtLeastOnce_2 or ExactlyOnce_4 delivery guarantees with the broker for any DataSetMetaData sent to ensure meta data is available to readers.

The DataSetWriterProperties settings apply also to DataSetMetaData sent to the queue named through the MetaDataQueueName parameter.