ATM switch with input and output ports

Details ATM switch with input and output ports ATM switch with input and output ports

1996-12-04

1998-10-20

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370390, 370414, 370429, H04J 324

Patent

active

058257675

ABSTRACT:
When a multi-cast cell to be sent to a plurality of output ports is inputted, an address pointer designating the address of storage of the multi-cast cell in the shared buffer is re-cued by copying the cell, for instance from a multi-cast cell address buffer, to address buffers for pertinent output ports. The address pointer of this multi-cast cell is preliminarily stored at a time in small capacity buffers for these output ports and then successively transferred to the address buffers during writing of the multi-cast cell. Since cast cells and multi-cast cells are each given a next address pointer designating an address to be next accessed. A single cast cell and a multi-cast cell are chained via an address cell, which indicates that the succeeding cell is a multi-cast cell. The multi-cast cells in the shared buffer are outputted in a logically re-cued form to their pertinent output ports.

REFERENCES:
patent: 5365519 (1994-11-01), Kozaki et al.
patent: 5410540 (1995-04-01), Aiki et al.
patent: 5570348 (1996-10-01), Holden
patent: 5583861 (1996-12-01), Holden
H. Saito; "Multicast Function and Its LSI Implementation In A Shared Multibuffer ATM Switch"; Proceedings of the Conference on Computer Communications (INFOCOM), Toronto, Jun. 12-16, 1994; pp. 315-322.

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