Glossary
Bridge
A device providing an intelligent connection between two otherwise independent LANs. Bridges operate at layer 2 of the ISO OSI reference model. A bridge inspects every packet originating on either LAN and creates a table of nodes and their locations. It isolates the LANs from each other, allowing both sides to pass traffic internally. If a transmission from one LAN is addressed to a node on the other LAN, the bridge transmits it onto the other LAN for the destination node.
Broadcast address
The station address
Broadcast packet
A packet sent to all nodes on a LAN.
CBR (Constant Bit Rate Service)
A type of telecommunication service characterized by a service bit rate of a constant value. Used for services requiring a constant, repetitive, or uniform transfer of information.
CCITT
International Consultative Committee on Telegraphy and Telephony. (French acronym.) Standards group responsible for V, X, and other recommendations concerning voice and data communications.
Collision
The result of two or more nodes on a LAN transmitting at the same time, producing a garbled transmission.
Combined LCN (Combined Logical Channel Number)
The combination of the 4 LGCN and 8 LCN bits into a 12 bit virtual circuit identifier field. The range is 0 to 4095.
Concentrator
An FDDI or
135
