Asynchronous transfer mode switching device

Details Asynchronous transfer mode switching device Asynchronous transfer mode switching device

1994-09-28

1996-12-10

Chin, Wellington

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370395, H04L 1256

Patent

active

055838588

ABSTRACT:
An ATM switching device includes at least one ATM switch element, and a unit for appending a routing tag, which is composed of a single byte or a plurality of bytes and related to an incoming ATM cell, to the head of the ATM cell. The routing tag includes a control information having information concerning a priority level of the ATM cell and a discard level thereof, and includes a routing information defining a single address or a plurality of addresses. The ATM switch element effects a priority control for the ATM cell, and a discard control of an ATM cell or ATM cells depending on a storage quantity of a congestion control memory buffer, according to the control information, and effects a switching of the ATM cell according to an address value or address values defined in the routing information. By the constitution, it is possible to realize a speedy and simple switching of an ATM cell or ATM cells.

REFERENCES:
patent: 4837761 (1989-06-01), Isono
patent: 4993018 (1991-02-01), Hajikano
patent: 5263024 (1993-11-01), Kumaki et al.
patent: 5271004 (1993-12-01), Proctor et al.
patent: 5274641 (1993-12-01), Shobatake et al.
patent: 5280483 (1994-01-01), Kamoi
patent: 5287530 (1994-02-01), Davis et al.
Spragius, "Telecommunications Protocols and Design", 1991, p. 324.

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