Fault-tolerant switch architecture

Details Fault-tolerant switch architecture Fault-tolerant switch architecture

2005-08-02

2005-08-02

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S011000, C714S043000, C714S056000, C370S226000, C370S243000, C370S244000, C370S246000

Reexamination Certificate

active

06925578

ABSTRACT:
A computer network employs a fault-tolerant or redundant switch architecture. The network includes redundant data paths coupling end nodes and switches. Fault-tolerant repeaters (FTRs) can be stand-alone devices or can be incorporated into the switches. Using error detection, the FTR checks to see if the data is good on all paths. If the data received on one path is “bad” and the data is “good” on another path, the FTR transmits the “good” data in place of the “bad” data. For any switch, a pair of incoming ports may be configured as redundant incoming ports and a pair of outgoing ports may be configured as redundant outgoing ports.

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