Panasonic 1200N - Manual (Page 169)

Glossary
Centillion 1200N ATM Switch User Manual B-7
NTP 297-8103-903
ARPANet
Advanced Research Projects Agency NETwork: A Department of Defense data
network, developed by ARPA, which ties together many users and computers in
universities, government, and businesses. ARPANET has been the forerunner of
many developments in commercial data communications, including packet
switching, which was first tested on a large scale on the network. ARPANET is a
predcessor of the Internet. It was started in 1969 with funds for the Defense
Department’s Advanced Projects Research Agency.
1
ASP
Abstract Service Primitive: An implementation-independent description of an
interaction between a service-user and a service-provider at a particular service
boundary, as defined by Open Systems Interconnection (OSI).
Assigned Cell
Cell that provides a service to an upper layer entity or ATM Layer Management
entity (ATMM-entity).
ASW
Cell switching control (point-to-point connection, point-to-multipoint connection)
Asynchronous
Not occurring at the same time; beginning each operation only after finishing the
preceding one.
Asynchronous Time Division Multiplexing
A multiplexing technique in which a transmission capability is organized in a prior
unassigned time slots. The time slots are assigned to cells upon request of each
application's instantaneous real need.
ATM
Asynchronous Transfer Mode: A transfer mode in which the information is
organized into cells. It is asynchronous in the sense that the recurrence of cells
containing information from an individual user is not necessarily periodic. ATM is
a high bandwidth, low-delay, connection-oriented, packet-like switching and
multiplexing technique which will form the basis for future offering of Broadband
ISDN(B-ISDN).Usable capacity is segmented into 53-byte fixed-size cells,
consisting of header and information fields, allocated to services on demand.
1.Newton’s Telecom Dictionary