BGlossary
B-10 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
BCOB-A
Bearer Class A: Indicated by ATM end user in SETUP message for connection-
oriented, constant bit rate service. The network may perform internetworking based
on AAL information element (IE).
BCOB-C
Bearer Class C: Indicated by ATM end user in SETUP message for connection-
oriented, variable bit rate service. The network may perform internetworking based
on AAL information element (IE).
BCOB-X
Bearer Class X: Indicated by ATM end user in SETUP message for ATM transport
service where AAL, traffic type and timing requirements are transparent to the
network.
BECN
Backward Explicit Congestion Notification: A Resource Management (RM) cell
type generated by the network or the destination, indicating congestion or
approaching congestion for traffic flowing in the direction opposite that of the
BECN cell.
BER
Bit Error Rate: A measure of transmission quality. It is generally shown as a
negative exponent, (e.g., 10-7 which means 1 out of 107 bits are in error or 1 out
of 10,000,000 bits are in error).
BHLI
Broadband High Layer Information: This is a Q.2931 information element that
identifies an application (or session layer protocol of an application).
Bi
Signaling ID assigned by Exchange B.
B-ICI
B-ISDN Inter-Carrier Interface: An ATM Forum defined specification for the
interface between public ATM networks to support user services across multiple
public carriers.