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,
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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