Configuring and Managing Host-Based X.25 Links - Edition 5 (36939-90054)

Glossary 203
Glossary
characters except the first can be
alphanumeric; the first character
must be alphabetic.
Local Area Network Interface
Controller (LANIC) A
hardware card that fits into the
backplane of the HP 3000
Series 900 computer andprovides
a physical layer interface for local
area networks.
local connection See direct
connection.
local node The computer that
you are configuring or that you
are logged on to.
local switching Feature of the
DTC which permits back-to-back
configuration (for connections to
an HP 3000 MPE/V host), using
two ports of the same DTC.
local user group A list defined
for a particular DTC and card
that specifies which remote nodes
this DTC can send data to and
also which remote nodes this DTC
can receive data from. (See also
Closed User Group).
logging The process of recording
the usage of network resources.
Events can be logged to both the
OpenView workstation and to the
MPE host.
logging class A number defining
the severity of any given event
logged. An operator uses the
logging classes to specify which
events are to be logged. Class 1
(catastrophic event) is always
logged.
logical device number (ldev)
A value by which the operating
system recognizes a specific
device. All DTC devices that are
configured as nailed devices
through the NMMGR
configuration have ldev numbers
permanently assigned. The DTC
devices can then be accessed
programmatically through use of
their ldev number. Non-nailed
devices have ldev numbers that
are assigned from a pool of
available ldev numbers for the
life of their connection to a
system. You cannot access
non-nailed devices
programmatically.
log off The termination of a job
or session.
log on The process of initiating a
job or session.
logon device See
session-accepting device.
loopback The routing of
messages from a node back to
itself.
LUG See local user group.
maintenance mode An
NMMGR character mode
interface used to manage both
network directory and
configuration files. It can be used
interactively, from within the
screen mode interface, or as a set
of commands entered via a batch
job.