Motorola 7.7.4 用户手册
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-----B-----
backbone. The segment of the network used as the primary
path for transpor ting traffic between network segments.
path for transpor ting traffic between network segments.
baud rate. Unit of signaling speed equal to the number of num-
ber of times per second a signal in a communications channel
varies between states. Baud is synonymous with bits per sec-
ond (bps) if each signal represents one bit.
ber of times per second a signal in a communications channel
varies between states. Baud is synonymous with bits per sec-
ond (bps) if each signal represents one bit.
binary. Numbering system that uses only zeros and ones.
bps. Bits per second. A measure of data transmission speed.
BRI. Basic Rate Inter face. ISDN standard for provision of low-
speed ISDN ser vices (two B channels (64 kbps each) and one
D channel (16 kbps)) over a single wire pair.
speed ISDN ser vices (two B channels (64 kbps each) and one
D channel (16 kbps)) over a single wire pair.
bridge. Device that passes packets between two network seg-
ments according to the packets' destination address.
ments according to the packets' destination address.
broadcast. Message sent to all nodes on a network.
broadcast address. Special IP address reserved for simulta-
neous broadcast to all network nodes.
neous broadcast to all network nodes.
buffer. Storage area used to hold data until it can be for-
warded.
warded.
-----C-----
carrier. Signal suitable for transmission of information.
CCITT. Comité Consultatif International Télégraphique et Télé-
phonique or Consultative Committee for International Telegraph
phonique or Consultative Committee for International Telegraph