Asynchronous transfer mode (atm) switch fabric

Details Asynchronous transfer mode (atm) switch fabric Asynchronous transfer mode (atm) switch fabric

H - Electricity

04

L

H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2111432

In an asynchronous transfer mode (ATM) switching arrangement buffer memory capacity is effectively and efficiently increased by employing a plurality of circuit cards including a master circuit card and a plurality of so-called slave circuit cards including additional buffer memory and an internal cell format in which all of the ATM cell routing information is supplied directly to the master circuit card. Then, the master circuit card utilizes the ATM cell routing information to control writing and reading of data to and from its buffer memory locations and the buffer memory locations of each of the plurality of slave circuit cards. This control of the plurality of slave circuit cards requires only unidirectional communications links to pass the control information from the master circuit card to the slave circuit cards.

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