Installing and Administering OSI Transport Services

146 Glossary
Glossary
ISO The International Standards
Organization that created a
network model identifying the
seven commonly-used protocol
levels for networking.
kernel The part of the HP-UX
operating system that is an
executable piece of code
responsible for managing the
computer’s resources.
LAN A data communications
system that allows a number of
independent devices to
communicate with each other.
LLC (logical link control) The
ANSI FDDI standard that
provides a common protocol
between the MAC function in the
data link layer and the network
layer.
Local Area Network See LAN
local network The network to
which a node is directly attached.
local network ID Some initial set
of digits of the NSAP that form a
prefix for all systems reachable
over this subnetwork.
MAC The ANSI FDDI standard
that defines the data link layer
function responsible for the
scheduling, routing and delivery of
frames on and off the FDDI ring.
manufacturing message
specification See MMS
media access control See MAC
MMS Provides the capability to
control and coordinate
programmatic factory floor devices
involved in manufacturing.
network address See NSAP
network administrator An
individual responsible for network
administration, for example,
organizing network domains and
issuing node names.
network architecture The set of
principles, including the
organization of functions and the
description of data formats and
procedures, that governs the
design and implementation of a
user-application network.
node Any point in a network
where services are provided or
communications channels are
interconnected. A node could be a
workstation or a server processor.