HP-UX SNAplus2 NOF Programmer's Guide

Introduction to the NOF API
SNAplus2 Components
Chapter 1 55
Figure 1-1 SNAplus2 Components
The local node, including its associated connectivity resources (DLCs,
ports and LSs), is implemented as STREAMS components in the kernel
of the HP-UX system.
The 3270 emulation program, RJE workstation, APPC transaction
programs, CPI-C applications, LUA applications, and the Remote
Command Facility (RCF) are user-space programs.SNAplus2 supports
multiple copies of the 3270 emulation program, and multiple APPC TPs,
CPI-C applications, and LUA applications, running concurrently.