Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2000-12-14
2004-09-21
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S043000, C370S216000
Reexamination Certificate
active
06795933
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The described invention relates to the field of network communications. In particular, the invention relates to a method for improving reliability of a network system by using a fail-over mechanism that employs redundant network cards.
2. Description of Related Art
In a typical chassis system, numerous circuit boards are plugged into the backside of the chassis. Network connections are attached either directly to network communication circuit boards (“network cards”) or to the front of the chassis where the connectors allow signals to be passed through the chassis to network circuit cards inside.
Replacing a failed network card in a system may take a significant amount of time and may cause unacceptable service interruptions to customers. Additionally, the replacement process may involve removing various attached cables, fitting the replacement board, and reattaching the network cables properly. This gives rise to the possibility of wiring errors, which can further interrupt network service.
REFERENCES:
patent: 6052733 (2000-04-01), Mahalingam et al.
patent: 6108300 (2000-08-01), Coile et al.
patent: 6308282 (2001-10-01), Huang et al.
patent: 6314525 (2001-11-01), Mahalingham et al.
patent: 6542934 (2003-04-01), Bader et al.
Beausoliel Robert
McCarthy Christopher S
Reif Kevin A.
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