The MaxNetworkMessageSize with DataType UInt32 indicates the maximum size in bytes for NetworkMessages created by the WriterGroup. It refers to the size of the complete NetworkMessage including padding and signature without any additional headers added by the transport protocol mapping. If the size of a NetworkMessage exceeds the MaxNetworkMessageSize, the behaviour depends on the message mapping.

The transport protocol mappings defined in 7.3 may define restrictions for the maximum value of this parameter.

NOTE The value for the MaxNetworkMessageSize should be configured in a way that ensures that NetworkMessages together with additional headers added by the transport protocol are still smaller than or equal than the transport protocol MTU.