APPC Subsystem on MPE/XL Node Manager's Guide (30294-90007)
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Glossary
A
Advanced
Program-to-Program
Communication (APPC):
Programmatic communication
based on IBM's LU 6.2
architecture. APPC provides
partner programs with a common
set of rules for communication.
Application Program
Interface (API): A set of
subprograms, callable from inside
applications, that carry out data
communications tasks.
B
basic conversation: A
programmatic conversation in
which the applications must be
able to create and interpret GDS
headers (see GDS header) for
transmitting and receiving data.
basic conversation verbs: The
programmatic implementation of
functions and protocols in a basic
conversation between transaction
programs. (See mapped
conversation verbs.)
bidder session: A remotely
controlled session. See remotely
controlled session.
BIND: An SNA command sent by
the host to a remote LU. This
command speciļ¬es the detailed
protocol that the Network Service
accepts before initiating an LU
session.
C
cluster controller: A machine
that allows multiple devices to
send and receive data over the
same communications link.
communications controller: A
front-end processor that provides
an interface between the
communications facilities and a
computer. IBM provides
programmable and
non-programmable
communications controllers, such
as the IBM 3705, 3725, and 3745
Communication Controllers. The
Intelligent Network Processor
(INP) on MPE V and the
Programmatic Serial Interface
(PSI) on MPE XL are HP
communications controllers.
contention loser session: A
remotely controlled session. See
remotely controlled session.
contention winner session: A
locally controlled session. See
locally controlled session.
control operator commands:
Interactive commands, issued by
the node manager, used to
activate and deactivate APPC
sessions and to monitor the
activity of the APPC subsystem.
control operator intrinsics:
Programmatic subroutines,
callable from inside applications,
used to control and monitor the
activity of the APPC subsystem.
Control operator intrinsics