SNAX/APC Management Programming Manual

Glossary
111813 Tandem Computers Incorporated Glossary–9
SNAX/APC. See SNAX/Advanced Program Communications.
SNAX/APC Trace Analysis Program (APCTAP). A program that formats the output of the
SNAX/APC trace facility into a readable form.
SNAX/APN See SNAX/Advanced Peer Networking.
SNAX/CDF. See SNAX/Cross Domain Facility.
SNAX/Cross Domain facility (SNAX/CDF). A Tandem software product that allows
procedures running in a Tandem System to communicate with LUs in other SNA
domains.
SNAX/Extended Facility (SNAX/XF). A Tandem software product that provides a gateway
between Tandem NonStop systems and SNA systems and devices. With SNAX/XF,
Tandem systems can function as fully integrated components of an SNA network.
SNAX/XF allows SNA devices attached to a NonStop system either directly or
through a switched line to use Tandem applications. SNAX/XF provides device
control, session passthrough, and application-to-application communication.
SNAX/High-Level Support (SNAX/HLS). An interface application that allows Tandem
application programs to communicate with SNA devices and host software via LU
types other than LU 6.2. Contrast with SNAX/Advanced Program Communications.
SNAX/HLS. See SNAX/High-Level Support.
SNAX/XF. See SNAX/Extended Facility.
SNAXLink. A Tandem product comprised of both hardware and software that provides
a direct channel link between a Tandem system and several types of IBM systems.
SNAXLink can also be used with IBM channel–compatible systems that contain VTAM
and SNA support.
SNALU. A SNAX/XF and SNAX/CDF programmatic interface that provides the
functions of the lower two SNA layers (data link control and path control) and some
functions of the transmission control layer.
SPI. See Subsystem Programmatic Interface.
SSCP. See system services control point.
SSCP–LU session. In SNA, a session between an SSCP and a LU that enables the LU to
request the SSCP to help initiate LU–LU sessions.
SSCP–PU. In SNA, a session between an SSCP and a PU that allows the SSCP to send
requests to and receive status information from individual nodes in order to control
the network configuration.
SSCP–SSCP session. In SNA, a session between the SSCP in one domain and the SSCP
in another domain. An SSCP–SSCP session is used to initiate and terminate cross–
domain LU–LU sessions.
STP. See service transaction program.
subsystem. A process or collection of processes that give users access to a set of related
resources or services. A subsystem typically controls a cohesive set of objects.