End-to-end data integrity protection for PCI-Express based...

Details End-to-end data integrity protection for PCI-Express based... End-to-end data integrity protection for PCI-Express based...

2007-12-18

2007-12-18

Torres, Joseph D. (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S774000

Reexamination Certificate

active

10960607

ABSTRACT:
Method, system and computer program product for protecting the integrity of data transferred between an input/output bus of a data processing system and an external network. A method for protecting the integrity of data transferred between an input/output bus and a network includes generating a Cyclic Redundancy Check (CRC) value on an interface between the input/output bus and an adapter for data being transferred from the input/output bus to the network, and checking a CRC value on the interface between the input/output bus and the adapter for data being transferred from the network to the input/output bus. By adding a CRC generator and a CRC checker on the interface between the input/output bus and the adapter, end-to-end data integrity protection is provided for data transferred between the input/output bus and the network.

REFERENCES:
patent: 4907228 (1990-03-01), Bruckert et al.
patent: 5577196 (1996-11-01), Peer
patent: 6647528 (2003-11-01), Collette et al.
patent: 2002/0080821 (2002-06-01), Hwang

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