OSI/TS Configuration and Management Manual

Glossary
OSI/TS Configuration and Management Manual—424831-001
Glossary-13
Subsystem Programmatic Interface.
subsystem version number. The subsystem ID is an argument to most of the SPI
procedures.
Subsystem Programmatic Interface. See SPI (Subsystem Programmatic Interface).
.
Summary state. In DSM interfaces to Compaq data communications subsystems, a
summary state isone of the generally defined possible conditions of an object, with
respect to the management of that object. A summary state differs from a state in two
ways. First, a summary state pertains to the management of an object, whereas a state
may convey other kinds of information about the object. Second, summary states are
defined the same way for all Compaq data communications subsystems, whereas the set
of possible states differs from subsystem to subsystem. The management programming
interfaces to Compaq data communications subsystems refer to summary states rather
than to states. Examples of summary states are STARTED, STOPPED, SUSPENDED,
and ABORTING.
Symbolic name. In DSM programmatic interfaces, a name used in programs to refer to
commonly used values, token codes, token maps, extensible structures, and other related
variables for use in management programs.
Synchronization point. A marker that a Session Layer application can insert into the data it
is transmitting, to structure the exchange of data. There are two types: major
synchronization points and minor synchronization points.
Synchronize minor token. One of the four types of Session Layer tokens that are
associated with functional units.
SYSGEN. The Compaq system generation program, used to configure objects such as
devices, controllers, and I/O processes in a newly installed system, or to update the
system when new software is released. Objects to be configured are defined to SYSGEN
in a special configuration file, which can then be cold loaded into the system. The
Compaq OSI products are not configured with SYSGEN, but the underlying X25AM
I/O and TLAM I/O (for D-series and pre-G06 releases, or PAM subsystems for G06 and
above releases) process are.
Tandem internal token. In DSM, an event message token that is intended for interpretation
and use only by Compaq software.
TAPS (Tandem application, presentation, and session) process. A process in the OSI/AS
subsystem that performs service and protocol functions for ACSE (in the Application
Layer), the Presentation Layer, and the Session Layer. The TAPS process also performs
some management services in the DSM environment.
TLAM (Tandem LAN access method). For D4x series only. A Compaq product that
implements, for LANs, the services of the Data Link Layer and layers below.
Token. (1) An attribute of a Session Layer connection, dynamically assigned to one session
service user at a time, that confers the exclusive right to perform a given function. For
example, in half-duplex mode, if a local application holds the data token, it can send
data; before the remote application can send data, it must acquire the data token from the