Troubleshooting Terminal, Printer and Serial Device Connections - Edition 4 (32022-90030)

Glossary 145
Glossary
MPE/iX MultiProgramming
Executive iX The operating
system of the HP 3000 Series 900
computers. The NS 3000/iX
network services operate in
conjunction with the MPE/iX
operating system.
multiplexer MUX. A device that
allows multiple communication
links to use a single channel.
N
nailed device A device with a
permanently assigned ldev. The
assignment is established
through the system configuration
of the MPE/iX host system.
Nailed devices can be accessed
programmatically through their
ldev number. Nailed devices can
also be assigned to more than one
host.
native mode The run-time
environment of MPE/iX. In
Native Mode, source code has
been compiled into the native
instruction set of the HP 3000
Series 900 computer.
neighbor gateway A gateway
that is in the same network as a
given node.
NetIPC Network Interprocess
Communication. Software that
enables programs to access
network transport protocols.
network A group of computers
connected so that they can
exchange information and share
resources.
network address This can be
either 1) the network portion of
an IP address as opposed to the
node portion, or 2) when referring
to X.25 networks, it is a node’s
X.25 address.
network boundary The logical
division between networks in an
internetwork.
network directory A file
containing information required
for one node to communicate with
other nodes in 1) an internetwork,
2) an X.25 network, or 3) a
network that contains non-HP
nodes. The active network
directory on a node must be
named NSDIR.NET.SYS.
network interface NI. The
collective software that enables
data communication between a
system and a network. A node
possesses one or more network
interfaces for each of the
networks to which it belongs.
Network interface types are
LAN802.3, router (point-to-point),
X.25, loopback, and gateway half.
The maximum number of
supported NIs is 12, one of which
is reserved for loopback.
network management The
collective tasks required to
design, install, configure,
maintain, and if necessary,
change a network.
network map A drawing that
shows the topology of the
network. For networks managed
by the OpenView DTC Manager, a