Configuring and Managing MPE/iX Internet Services (MPE/iX 6.0)

184 Glossary
Glossary
internet An aggregation of
computer systems and other
types of computing equipment
that share information according
to a set of defined
communications protocols. Local
networks, such as all computer
systems linked together within a
company, are typically linked to
other local networks via the
Internet. Or, individual systems
which are not part of a local
network, such as a personal
computer or a standalone
business computing system, can
exchange information via the
Internet if they are equipped with
the appropriate communications
software and hardware.
Internet Protocol (IP). A set of
rules used to route information
between different local networks
in an internetwork, as well as
among nodes in the same local
network. The internet protocol
corresponds to layer three, the
network layer, of the OSI model.
See also IP address.
IP See Internet Protocol.
IP address Internet Protocol
address. An address used by the
Internet Protocol to correctly
route information. A complete IP
address comprises a network
portion and a subnet portion to
identify a specific network, and a
node portion to identify a node
within that network.
L
local host The host system you
are currently working from.
local node Same as host system.
loopback The routing of
messages from a node back to
itself.
N
name space The set of possible
names allowed in a given
environment. The POSIX name
space, which follows hierarchical
file system syntax (i.e.,
\sys\pub\myfile) is distinct
from the MPE/iX name space,
which follows MPE naming rules
(i.e., MYFILE.PUB.SYS).
network address Either the
network portion of an IP address
(as opposed to the node portion)
or a node's X.25 address when
referring to X.25 networks.
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.
NI See Network Interface.
Network Interface The
collection of software that enables
data communication between a
system and a network. A node