OSI/AS SCF Reference Manual

Glossary
OSI/AS SCF Reference Manual—424121-001
Glossary-2
Compaq OSI/FTAM
address component of the Application Layer, allowing Compaq applications to
communicate with other applications in a multivendor environment.
Compaq OSI/FTAM. A communications subsystem that provides file transfer, access, and
management (FTAM) functions across a heterogeneous network, in conformance with
the International Standards Organization (ISO) FTAM standard. Compaq OSI/FTAM
supports the transfer of files between Himalaya S-series servers and other kinds of
computers. It also lets users on the Himalaya S-series server manage and operate on
remote files and lets users on other kinds of systems manage and operate on files on the
Himalaya S-series server.
Compaq OSI/TS. A communications subsystem that provides Open Systems Interconnection
(OSI) layer 4 (Transport Layer) services to Compaq OSI/AS applications or to user
applications needing direct access to OSI Transport Layer services. Compaq OSI/TS
implements the Connectionless Network Layer Protocol (CLNP) for use over local area
networks (LANs) or (optionally) X.25 packet-switched data networks (PSDNs). It
provides a uniform interface to applications in wide area network (WAN) and LAN
environments, using network and data-link services provided by X.25 Access Method
(X25AM) for D4x-series systems or the Port Access Method (PAM) for G06 and later
systems.
compatibility distributor. An Event Management Service (EMS)
distributor process that
filters event messages according to fixed (rather than user-specified) criteria, obtains
text for these messages, and writes the text to the console-message destinations.
Configuration Utility Program (COUP). For D4x-series only, an interactive program that
allows system managers to make online changes to the configuration of devices and
controllers. COUP is part of the Dynamic System Configuration (DSC)
facility, which is
not used to configure Compaq OSI subsystem objects, but which can be used to
configure the underlying X.25 Access Method (X25AM) and Tandem LAN Access
Method (TLAM) objects.
connection-establishment phase. The phase of an Open Systems Interconnection (OSI)
connection during which the connection is created. Compare data-transfer phase or
connection-release phase
.
connection-release phase. The phase of an Open Systems Interconnection (OSI)
connection
during which the connection is relinquished. This phase begins when an application
initiates a release request or when an application or the service provider aborts the
connection. Compare data-transfer phase
or connection-establishment phase.
control and inquiry. In Distributed Systems Management (DSM)
, those aspects of object
management that affect the state or configuration of an object, such as inquiries about
the object and commands pertaining to the environment (for example, commands that
set default values for the session).
COUP. See Configuration Utility Program (COUP)
.
Data Link Layer. Layer 2 in the Open Systems Interconnection (OSI) Reference Model
.
This layer packages data for transmission across the network and ensures that the data