Switch User's Manual

17
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B
backplane forwarding module (BFM)
Connects the switching module on the Web
Switching Module (WSM) and SSL Acceleration
Module (SAM) to the Nortel Ethernet Routing
Switch 8600 backplane.
backup designated router (BDR)
Assumes the designated router (DR) role for the
Open Shortest Path First (OSPF) protocol if the
DR fails.
bandwidth
A measure of transmission capacity for a
particular pathway, expressed in megabits per
second (Mbit/s).
BAP memory controller (BMC)
A Field Programmable Gate Array (FPGA)
device on the R module.
basic rate interface (BRI)
A type of Integrated Services Digital Network
(ISDN) access provided by a set of time division
multiplexed digital channels that include two
B-channels at 64 kbit/s (for digitized voice and
data), one D-channel at 16 kbit/s (for signaling
information), and one or more maintenance
channels.
Baysecure Access Control (BSAC)
A Nortel Remote Authentication Dial-In User
Service (RADIUS) server.
Nortel Ethernet Routing Switch 8600
Terminology
NN46205-102 01.01 Standard
30 May 2008
Copyright © 2008 Nortel Networks
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