Data switching system

Details Data switching system Data switching system

2007-01-16

2007-01-16

Ngo, Ricky Q. (Department: 2616)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S422000

Reexamination Certificate

active

10138496

ABSTRACT:
A data switching system comprising one or more I/O elements each comprising a plurality of first input/output ports adapted to receive and transmit data packets or cells to and from an external data network, and one or more second input/output ports adapted to receive and transmit data packets or cells, means for providing first routing information relating to at least one packet or cell to be output from one or more of the second port(s), each I/O element being adapted to transfer data packets or cells between the first ports and the second port(s) and to output data packets or cells comprising corresponding first routing information from the second port(s), a switching element having a plurality of third input/output ports being adapted to receive and transmit data packets or cells, the switching element comprising means for receiving on a third port a data packet or cell as well as the corresponding first routing information, determining, on the basis of the first routing information, port information indicating from which of the third ports the data packet or cell is to be output from the switching element, and outputting the data packet or cell from the third port(s) indicated by the port information, a second port of each I/O element being connected to a third port of the switching element.

REFERENCES:
patent: 5166926 (1992-11-01), Cisneros et al.
patent: 5404352 (1995-04-01), Pauwels et al.
patent: 5948067 (1999-09-01), Caldara et al.
patent: 6031838 (2000-02-01), Okabe et al.
patent: 2002/0024928 (2002-02-01), Furuichi

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