Glossary - IBM 3745 Console Setup Manual

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Glossary
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This glossary defines all new terms used in this
manual. It also includes terms and definitions
from the IBM Dictionary of Computing,
SC20-1699.
addressing. Where a controlling workstation with
access to DTEs sharing transmission lines, selects
a DTE to send a message.
Advanced Program-to-Program
Communication (APPC). An implementation of
the SNAlSDLC LU6.2 protocol that allows
interconnected systems to communicate and
share the processing of programs.
advanced peer-to-peer networking (APPN).
An extension of SNA featuring: (a) greater
distributed network control that avoids critical
hierarchical dependencies, thereby isolating the
effects of single point failure; (b) dynamic
exchange of network topology information to foster
ease of connection reconfiguration, and adaptive
route selection; (c) dynamic definition of network
resources; and (d) automated resource registration
and directory lookup. APPN extends the LU 6.2
peer orientation for end-user services to network
control and supports multiple LU types, including
LU 2, LU 3, and LU 6.2.
alarm. A message sent to the MOSS operator
console. In case of an error, a reference code
identifies the nature of the error.
alert. A message sent to the host console. In
case of an error, a reference code identifies the
nature of the error.
communication controller. A device that directs
the transmission of data over the data links of a
network; its operation can be controlled by a
program in the processor connected to the
controller is connected, or controlled by a program
within the device. Examples are the IBM 3705,
IBM 3720/3725/3726, IBM 3745 models 130 to
61A, and IBM 3746 models 900/950.
communications manager. A function of the
OS/2, allowing a workstation to connect to a host
computer and use the host resources and
resources of other personal computers attached to
the workstation, either directly or through the host.
© Copyright IBM Corp. 1989, 1998
configuration data file (CDF). A 3745 MOSS
file that contains a description of all the hardware
features (presence, type, address, and
characteristics).
configuration data file - extended (CDF-E). A
3746 MOSS-E file that contains a description of all
the hardware features (presence, type, address,
and characteristics).
control panel. A panel of switches and
indicators for the operator and service personnel.
control point (CP). A collection of tasks which
provide the directory and route selection functions
for APPN. An end node control point provides the
configuration, session, and management services
in conjunction with the control point of the serving
network node. A network node control pOint
provides session and routing services.
control program. A program designed to
schedule and· supervise the execution of programs
for the controller.
Customer engineer. See:
IBM service
representative.
data link control (DLC). In SNA, a set of rules
used by two nodes on a data link to accomplish
an orderly exchange of information. Synonymous
with line control.
data terminal equipment (DTE). That part of a
data station that serves as a data source, data
link, or both, and provides for the data
communication control function according to
protocols. For example, the IBM 3745 can be a
DTE.
Distributed Console Access Facility (DCAF).
(1) This program product provides a remote
console function that allows a user at one
programmable PS/2 workstation to remotely
control the keyboard input and monitor the display
of output of another programmable workstation.
The DCAF program does not affect the application
programs that are running on the workstation that
is being controlled. (2) An icon that represents
the Distributed Console Access Facility.
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