Using the Node Management Services (NMS) Utilities (32022-90053)

300 Glossary
Glossary
banner A welcome message
displayed on your screen. On the
local OpenView workstation a
banner appears when a remote
connection is established with the
OpenView DTC Manager. A
banner also can appear when you
log on to MPE.)
baud Measure of the speed at
which information travels
between devices, most commonly
used in reference to terminal
speed settings. Baud represents
signal events per second. When
one bit represents each signal
change, baud is the same as “bits
per second”.
binary mode Data transfer
scheme in which no special
character processing is
performed. All characters are
considered to be data and are
passed through with no control
actions being taken.
bit Binary digit. A unit of
information that designates one
of two possible states, which are
represented by either 1 or 0.
block mode Terminalprocessing
mode in whichgroups, or “blocks,”
of data are transmitted all at
once.
BNC T-Connector Connector
used to connect a computer or a
component such as a DTC to the
LAN in a ThinLAN configuration.
boundry See network
boundary.
bps Bits per second. The number
of bits passing a point per second
broadcast Communication
method of sending a message to
all devices on a link
simultaneously.
byte A sequence of eight
consecutive bits operated on as a
unit.
C
call In X.25, a call is an attempt
to set up communication between
two DTEs using a virtual circuit.
Also known as a virtual call.
call collision A conflict that
occurs at a DTE/DCE interface
when there is a simultaneous
attempt by the DTE and DCE to
set up a call using the same
logical channel identifier.
called address When a node
sends out a call request packet,
the packet contains the address of
the destination node. The address
of the destination node is the
called address.
calling address When a node
receives an incoming call packet,
the packet contains the address of
the sending node. The address of
the sending node is the calling
address.
carrier A continuous wave that
is modulated by an information
bearing signal.
catenet See internetwork.