Network communications under UNIX System Services

This topic discusses interprocess communication, including MVS™ Sockets for z/OS® UNIX and the X/Open Transport Interface (XTI) for z/OS UNIX and the internetworking involved.

Many products today supply a socket interface. The types of application programming interfaces (APIs) for the sockets which will be covered in this chapter are:

X/Open Socket
Berkeley Socket

If you are running with some other socket API, this material will not necessarily apply.

Your z/OS UNIX XL C/C++ application program can take advantage of sockets or XTI to communicate with a related application (server or client).

The X/Open Transport Interface (XTI) defines an independent transport service interface that allows multiple users to communicate at the transport level of the OSI reference model. More information can be found at the end of this topic.