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Glossary C
Centillion 1200N ATM Switch User Manual B-13
NTP 297-8103-903
Btag
Beginning Tag: A one octet field of the CPCS_PDU used in conjunction with the
Etag octet to form an association between the beginning of message and end of
message.
B-TE
Broadband Terminal Equipment: An equipment category for B-ISDN which
includes terminal adapters and terminals.
BUS
Broadcast and Unknown Server: This server handles data sent by an LE Client to
the broadcast MAC address ('FFFFFFFFFFFF'), all multicast traffic, and initial
unicast frames which are sent by a LAN Emulation Client.
BW
Bandwidth: A numerical measurement of throughput of a system or network.
C
CAC
Connection Admission Control: Connection Admission Control is defined as the
set of actions taken by the network during the call set- up phase (or during call re-
negotiation phase) in order to determine whether a connection request can be
accepted or should be rejected (or whether a request for re-allocation can be
accommodated).
Call
A call is an association between two or more users or between a user and a network
entity that is established by the use of network capabilities. This association may
have zero or more connections.
CAS
Channel Associated Signaling: A form of circuit state signaling in which the circuit
state is indicated by one or more bits of signaling status sent repetitively and
associated with that specific circuit.
CBDS
Connectionless Broadband Data Service: A connectionless service similar to
Bellcore's SMDS defined by European Telecommunications Standards Institute
(ETSI).