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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
BPV
See bipolar violation (BPV) (page 19).
break-before-make rerouting
See connection recovery (page 33).
BRI
See basic rate interface (BRI) (page 18).
BRM
See backward resource management cell (BRM) (page 17).
broadband inter-s interface (B-ICI)
An interface between public ATM networks.
broadcast
To send one or more messages to multiple addresses on one or more
networks.
BSR
See bootstrap router (BSR) (page 20).
BT
See burst tolerance (BT) (page 22).
BTDS
See bit-transparent data service (BTDS) (page 20).
buffer
A linked list of blocks. The blocks that make up a buffer are not necessarily
contiguous. Buffers are composed of multiple blocks when the user data does
not fit into a single block. The linkage of blocks to form a buffer is managed by
the queue controller.
buffer memory
See shared memory (page 121).
building-integrated timing supply (BITS)
The most accurate and stable clock source within a physical structure. All
digital equipment in the structure receives timing reference from the same
master clock. BITS derives its signal from a stratum-3E or better reference
signal. BITS provides network clock synchronization through external timing
to the Nortel Multiservice Switch
7400, Multiservice Switch 15000, or
Multiservice Switch
20000 node.