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Glossary
Beaconing
An error detection mechanism in Token Ring networks. When a station detects a
serious network problem, it sends a Beacon Frame. The Beacon Frame defines a
failure domain that includes the station reporting the failure, its nearest active
upstream neighbor, and everything in between. Beaconing initiates a process in
which the nodes in the failure domain perform diagnostics and attempt to
reconfigure the network around the failed areas.
BGP
Border Gateway Protocol. An Internet protocol that enables groups of routers to
share routing information so that efficient, loop-free routes can be established.
BOOTP
Bootstrap Protocol. An Internet protocol that enables a diskless workstation to
discover its own IP address, the IP address of a BOOTP server on the network, and a
file to be loaded into memory to boot the machine. This enables the workstation to
boot without a hard or floppy disk drive.
BPDU
Bridge Protocol Data Unit. A packet that is transmitted at configurable intervals to
exchange information among bridges in the network. Among other things, BPDUs
inform the bridges of the topology of the network and detect loops and topology
changes.
Broadcasting
A common method of information transmission in which a packet is sent to every
port on the network.
Bridge
A device connecting two networks using similar protocols. A bridge filters and
forwards data between the networks according to their destination addresses.
Burst
A transmission of data at a faster rate than normal. Data bursts can be carried out in
several ways. A burst is always limited in time and can take place only under
special conditions.
Bus
A transmission path or channel. A bus is typically an electrical connection with one
or more conductors, where all attached devices receive all transmissions at the same
time.
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Avaya C460 Reference Guide
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