NS3000/iX NMMGR Screens Reference Manual - Edition 9 (36922-90040)

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transmitting and receiving digital signals
over telephone lines.
modulo Value used as the counting cycle
for determining the send sequence number
(N(S)) of frames sent across an X.25
network.
modulation The process in which certain
characteristics of a carrier signal are
altered in accordance with the changes of
an information-bearing signal.
MPE/iX MultiProgramming Executive
POSIX. The operating system of the
HP e3000 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 Therun-timeenvironmentof
MPE/iX. In Native Mode, source code has
been compiled into the native instruction
set of the HP e3000 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 LAN,
router (point-to-point), X.25, Token Ring,
FDDI, VG100LAN, BT100, SNA, loopback,
and gatewayhalf. The maximum number of
supported NIs per system 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 network map must be created using the
OVDraw capability provided with the
management software. A network map is
also a hardcopy drawing used when
planning a network. It shows network
topology, node and network names,
addresses, network boundaries (for an
internetwork map), and link types.
Network Services NS. Software
application products that can be used to
access data, initiate processes, and