Introduction to Networking for NonStop S-Series Servers

Communications Product Concepts and
Components
Introduction to Networking for HP NonStop S-Series Servers—520670-005
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Systems Network Architecture (SNA) Interfaces
You can also write applications that use any of these interfaces directly. HP SNA
products are described in Section 7, HP NonStop S-Series Systems Network
Architecture (SNA) Network Connections.
Pathway/TS Provides a multithreaded terminal control process (TCP) for
communications with terminals, including fault-tolerance and
transaction processing.
SNAX/XF Provides the functions of an SNA host (node type 5) to SNA
devices and appears as a cluster controller (node type 2) to
SNA hosts. Includes a high-level interface for communicating
with 3270 devices and a low-level interface (SNALU) for custom
device support.
SNAX/APN Provides two main functions:
•
Advanced Peer-to-Peer Networking (APPN), which
enables a variety of systems to communicate as peers.
With the base product, the NonStop S-series server
acts as a low-entry networking (LEN) node; with the
extended version, SNAX/APN-EN, it acts as an end
node.
•
Dependent LU support for devices in IBM networks
requesting LU-LU sessions with HP applications
(logon). SNAX/APN (LEN Node) provides dependent
LU support using only the extended logon facility (XLF).
SNAX/APN-EN (End Node) provides dependent LU
support using both XLF and the enhanced logon facility
(ELF).
SNAX/HLS Provides a high-level interface with a wide range of SNA
systems, devices, and applications (logical unit—or LU—types
0, 1, 2, 3, 4, and 7).
SNAX/APC Provides a high-level interface with applications using LU type
6.2 protocols.
SNAX/CPI-C Works with SNAX/APC and uses the LU 6.2 protocol.
SNAX/CPI-C provides an easy-to-use, platform-independent
programming interface for transaction programs (TPs) that
require program-to-program communication.