Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1997-08-04
2000-02-29
Olms, Douglas W.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370419, H04L 1256
Patent
active
060318384
ABSTRACT:
An ATM switching system concentrates cell streams, which are output by respective ones of a plurality of line interfaces, by a concentrator, enters a resulting cell stream into an ATM switch unit, deconcentrates cells, which have been switched by the ATM switch unit, by a deconcentrator on a per line interface basis and sends the cells to lines. Each line interface converts a VPI/VCI included in the header of a cell that has entered from a line to an internal cell address having a number of bits smaller than the number of bits of the VPI/VCI. Each unit in the ATM switching system performs management of various data and controls cell switching based upon a converted cell address without relying upon the VPI/VCI. The line interface restores an internal cell address, which is included in the header of a cell that enters from the side of the ATM switch, to the VPI/VCI and sends the cell to a line.
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Ishiwata Hiroshi
Kawaguchi Jun-ichi
Okabe Ken-ichi
Sato Masakazu
Yoshino Hiroko
Fujitsu Limited
Olms Douglas W.
Vanderpuye Kenneth
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