Multiplex communications – Wide area network – Packet switching
Patent
1995-12-04
1997-08-19
Nguyen, Hoa T.
Multiplex communications
Wide area network
Packet switching
39518321, 370244, G01R 3128, G06F 1100
Patent
active
056596812
ABSTRACT:
In a switching system, a data bus is provided for interconnecting circuit modules, a switching network module and a control module for transporting packets between the interconnected modules. A bus interface (16) is connected to the data bus (13) for receiving a copy of every packet on the data bus. An error detector (18) determines whether the received packet contains an error, and produces an error detect signal and an error check result if the received packet is determined as having an error. In response to the error detect signal, the received packet, the error check result and time-of-day data are stored into a register (19) and transferred to one of the storage locations of a memory (20) to keep a list of error records. A maintenance station (22) reads stored error records from the memory for identifying the source of errors.
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NEC Corporation
Nguyen Hoa T.
Snyder Glenn
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