SNA NRJE Node Managers Guide (30292-90007)

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network: A series of points
interconnected by a
communications channel. These
may be computers, terminals, or
other peripherals.
Network Addressable Unit
(NAU): Either a program or
group of programs that
represents the source and
destination of data in a network.
The three kinds of network
addressable units are SSCP, LU,
and PU. A communication session
must exist before data can be
transferred. Sessions are
established by the SSCP in this
order:
• First with the PU.
• Then, with each LU before two
LUs can communicate in a
session.
Four types of sessions exist:
• SSCP-SSCP
• SSCP-PU
• SSCP-LU
• LU-LU
Network Control Program
(NCP): A program that controls
the operation of a
communications controller.
Network File Transfer (NFT):
A user-level protocol that enables
the transfer or copying of files
from one node to another or
within asingle node,interactively
or programmatically.
Network Services Procedure
Error (NSPE): An SNA request
from the SSCP to the LU
indicating an error during session
startup or shutdown.
NFT: See Network File
Transfer.
NLS: See Native Language
Support.
NMS: See Node Management
Services.
node: A set of hardware devices
and associated software at the
end of a data link. In an SNA
network, nodes can be distributed
or host processors,
communications controllers,
cluster controllers, or terminals.
Node Management Services
(NMS): A major software
component of the HP 3000
operating system that provides a
common set of services to HP
networking products. It includes
utilities and commands for
configuration, event logging,
message tracing, link
management, and subsystem
initiation, termination and
control.
node name: A name assigned to
a node configured into a Local
Area Network (LAN). It must be a
maximum of eight characters in
length and cannot be qualified.
NSPE: See Network Services
Procedure Error.