Networking on z/OS
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TN3270E server implementation

Networking on z/OS

You can implement TN3270 in z/OS Communications Server either within the TCP/IP address space or, beginning with z/OS V1R6, in its own address space. The definitions of the TN3270E server are identical in both configuration alternatives. However, when running the TN3270E server as its own task, the definitions for the TN3270E server cannot be placed in the TCP/IP profile data set.

The startup JCL has a PROFILE DD statement that points to a profile data set that contains parameters to control the TN3270E server. Within this profile data set are two fundamental statements blocks used to define TN3270E server behavior:
  • TELNETPARMS
  • BEGINVTAM
  • TELNETPARMS statement block
    The TELNETPARMS statement block (ended with ENDTELNETPARMS) contains the TN3270E protocol and other non-VTAM attributes.
  • BEGINVTAM statement block
    The BEGINVTAM statement block (ended with ENDVTAM) is used to define characteristics that are related to the mapping of the VTAM configuration.
  • VTAM setup for TN3270E server
    If the TN3270E server is going to acquire LUs on behalf of a TN3270E client, then VTAM must be configured to allow such LUs to be generated.
Parent topic: TN3270 Enhanced

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