Multiplex communications – Diagnostic testing – Fault detection
Reexamination Certificate
2008-09-02
2008-09-02
Pham, Chi H. (Department: 2616)
Multiplex communications
Diagnostic testing
Fault detection
C370S252000, C714S799000
Reexamination Certificate
active
10865870
ABSTRACT:
A method for identifying faulty modules within telecommunication devices, such as ATM switches, involves generating and attaching verification codes, such as a CRC or checksum codes, to data packets at an upstream location determining the integrity of the verification codes at each of multiple downstream location within a telecommunication device; and signaling an error condition where a corrupted data packet has been detected. A verification code may be written to a field of a data packet which is not used while the packet is in transit through the telecommunication device.
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Driediger Steve
Law Allan Randall
Margerm Steven Douglas
Morton Robert
Nadj Paul
Alcatel-Lucent Canada Inc.
Oyen Wiggs Green & Mutala LLP
Pham Chi H.
Phan Tri H.
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