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LOSSARY
ASIC
Application Specific Integrated Circuit, a chip designed for a particular
application. ASICs are built by connecting existing circuit building blocks
in new ways. Because the building blocks already exist in a library, it is
much easier to produce a new ASIC than to design a new chip from
scratch.
ATM
Asynchronous Transfer Mode. A transfer method used for LAN and
WAN. ATM carries voice, video and data at speeds up to 2.2 Gbps and
can integrate geographically distant disparate networks. Also called cell
relay.
ATM Interface
Module
An ATM Interface Carrier Module with one or two daughter cards.
ATM Layer Processor
The ATM Layer Processor prepares cell header information and manages
temporary cell storage.
backplane
The main bus that carries data within a device.
cell
An ATM Layer protocol data unit (PDU) characterized by fixed, rather
than variable, length payloads. The standard ATM cell is 48 bytes of
payload with 5 bytes of header.
Cell Loss Priority
(CLP)
A 1-bit field in the ATM cell header that corresponds to the loss priority
of a cell. Lower priority (CLP = 1) cells can be discarded under a
congestion situation.
chassis
The hardware housing unit for the CoreBuilder
®
9000.
CoreBuilder 9000
A high performance modular switching family which runs on an ATM
or Ethernet backplane.