ATM exchange

Details ATM exchange ATM exchange

1998-10-22

1999-12-28

Nguyen, Chau

Multiplex communications

Diagnostic testing

Fault detection

370253, 370395, H04L 1214

Patent

active

060090804

ABSTRACT:
A component device (such as an input circuit interface device, a cell multiplexing device, a cell switching device, a cell demultiplexing device or output circuit interface device) in an ATM exchange counts an inflow cell number, a passage cell number and discard cell number. The firmware of the device subtract the passage cell number and the discard cell number from the inflow cell number to find a difference at predetermined interval. If the difference is larger than the predetermined threshold value, the firmware informs the software of fault warning.

REFERENCES:
patent: 5166894 (1992-11-01), Saito
patent: 5488607 (1996-01-01), Vinel et al.
patent: 5677907 (1997-10-01), Hamada et al.
patent: 5818818 (1998-10-01), Soumiya et al.
patent: 5848056 (1998-12-01), Meurisse et al.

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