SNAplus2 implements an APPN node to communicate with other
nodes on the SNA network. This provides
logical unit (LU) 6.2 support for APPC and CPI-C capabilities and
for 5250 emulation, as well as LU 0, 1, 2, and 3 support for 3270,
RJE, and LUA communications.
SNAplus2 can operate either as a LEN node or as an APPN end
node, depending on its configuration. Certain functions are supported
only on end nodes, as defined by the APPN architecture. These differences
are indicated where necessary in this manual; where no differences
are indicated, the information applies to both node types.
Figure 1-1 “SNAplus2
Components” shows
the components of SNAplus2 and how they work together.
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.
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