Agilent Technologies HSSI WanProbe J3916A - Manual (Page 155)

Glossary
135
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 FFFFFF-FFFFFF. Packets intended for all nodes on a LAN
use this address as the destination 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 Token-Ring network device that connects as a Dual Attachment
Station and has connections for additional devices (such as; stations,
concentrators, or bridges).