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Common Format Buffer Packaging

The third TCP/IP communication style concerns how the Common Format Buffer data is delivered to the target server. There are two choices, wrapped for IMS support or unwrapped.

Communications to z/OS IMS TCP/IP Direct Connect require the CFB to be wrapped inside of IMS header data prior to it being sent to the IMS target server environment. Only z/OS IMS Direct Connect has this requirement. All other TCP/IP target server environments require a normal or non wrapped CFB.

The three styles are configurable through check boxes on the Sockets Server Configuration – Details dialog. The state of the check boxes depends on the target server environment and is detailed in the following section.