Default: Message Value: Message or stream Type of data transfer interface the application will be using; message type or stream type. The message data abstraction is identical to the Sequenced-packet socket concept of the Phase IV session control. When writing applications, you should use the same data abstraction as that used by the program to which you connect. Table Data Abstraction Type Comparison compares Message and Stream data abstractions. Table 1-1 Data Abstraction Type Comparison Message Type Stream Type Preserves message Does not preserve message boundaries boundaries HP DECnet-Plus Commonly used for Tru64 UNIX for OpenVMS default applications abstraction Not available on Available on TCP/IP TCP/IP Supported by XTI Supported by XTI