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 netw ork capabilities. This association may
have zero or more connections.
CAS
Channel Associated Signaling: A form of circuit state signaling in which t he 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).