Agilent Technologies J3919A Installation & User Manual page 158

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.
Cell
A cell is a fixed-length packet of bytes.
Cell Delineation
Cell delineation is the process of identifying the beginning of cells. This can be
based on the HEC byte of individual ATM cells.
Cell Layer
A cell layer is the layer where cell level management, routing, traffic control and
multiplexing happen.
Cell Loss Priority (CLP)
CLP is a 1-bit field in the fourth byte in the header of an ATM cell. It is used to set
priorities for cell discarding. A CLP value of 0 gives the cell a 'higher priority'
telling the network this cell should not be discarded. A CLP value of 1 assigns the
cell a 'lower' priority informing the network that this cell can be discarded
depending on traffic conditions.
Cell Payload
A field of 44, 47, or 48 bytes in an ATM cell that carries service data.
Cell Segmentation
The process of mapping a service into an ATM cell stream.
Cell Stream
A continuous signal of ATM cells. Also known as stream.
138