Glossary - IBM 950 User Manual

Glossary

This glossary defines all new terms used in this
manual. It also includes terms and definitions
from the IBM Dictionary of Computing,
SC20-1699.
Address Resolution Protocol (ARP). One of
the protocol provided by TCP/IP that dynamically
maps between Internet addresses, baseband
adapter addresses, X.25 addresses, and
token-ring adapter addresses on a local area
network.
Advanced Communication Function (ACF). A
group of IBM licensed programs. principally VTAM
programs. TCAM, NCP, and SSP, that use the
concepts of Systems Network Architecture (SNA),
including distribution of function and resource
sharing.
addressing. A technique where the control
station selects, among the DTEs that share a
transmission line, the DTE to which it is going to
send a message.
Advanced Program-to-Program
Communication (APPC). An implementation of
the SNA/SDLC 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.
 Copyright IBM Corp. 1992, 2000
channel adapter (CA). A communication
controller hardware unit used to attach the
controller to a host processor.
channel interface. The interface between the
controller and the host processors.
communication controller. A device that directs
the transmission of data over the data links of a
network; its operation may be controlled by a
program executed in a processor to which the
controller is connected or it may be controlled by a
program executed 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 that lets a workstation connect to a host
computer and use the host resources as well as
the resources of the other personal computers to
which the workstation is attached, either directly or
through a host system.
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 that contains switches
and indicators for the customer's operator and
service personnel.
control point (CP). A collection of tasks, which
provide directory and route selection functions for
APPN. An end node control point provides its own
configuration, session, and management services
with assistance from the control point in its serving
network node. A network node control point
provides session and routing services.
control program. A computer program designed
to schedule and to supervise the execution of
programs of the controller.
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