Fault detection device

Details Fault detection device Fault detection device

2011-06-07

2011-06-07

Moe, Aung S (Department: 2474)

Multiplex communications

Fault recovery

C370S242000

Reexamination Certificate

active

07957267

ABSTRACT:
A fault detection device capable of detecting network faults by itself with high accuracy in multi-vendor environments, without the need to interoperate with an associated device according to an identical protocol. A monitoring control packet transmitter generates a fault monitoring control packet and transmits the generated packet to the associated device with which the fault detection device need not interoperate to detect faults according to the same protocol. A transmit packet counter keeps count of the transmitted fault monitoring control packet. A receive packet counter receives a control packet transmitted from the associated device, and keeps count of the received control packet. A fault detector monitors the count of transmitted packets and the count of received packets and, if at least one of the counts remains unchanged for a fixed period of time, judges that a fault has occurred and sends a fault notification to outside.

REFERENCES:
patent: 4567595 (1986-01-01), Hedlund
patent: 5790676 (1998-08-01), Ganesan et al.
patent: 6549882 (2003-04-01), Chen et al.
patent: 7142563 (2006-11-01), Lin
patent: 7224668 (2007-05-01), Smethurst et al.
patent: 7263104 (2007-08-01), Chiba
patent: 7269147 (2007-09-01), Kim et al.
patent: 7539489 (2009-05-01), Alexander
patent: 2002/0031099 (2002-03-01), Cookman et al.
patent: 2002/0115457 (2002-08-01), Koscal
patent: 2002/0142731 (2002-10-01), Jiang
patent: 2003/0069952 (2003-04-01), Tams et al.
patent: 2003/0095534 (2003-05-01), Jiang
patent: 2004/0052257 (2004-03-01), Abdo et al.
patent: 2004/0085894 (2004-05-01), Wang et al.
patent: 2004/0147289 (2004-07-01), Paljug et al.
patent: 2005/0094572 (2005-05-01), Mimura et al.
patent: 2005/0108601 (2005-05-01), Driediger et al.
patent: 2005/0245222 (2005-11-01), Lehnert et al.
patent: 2006/0050708 (2006-03-01), Shapiro et al.
patent: 2006/0107089 (2006-05-01), Jansz et al.
patent: 2006/0133266 (2006-06-01), Kim et al.
patent: 2007/0008897 (2007-01-01), Denton et al.
patent: 2007/0028147 (2007-02-01), Huang et al.
patent: 2007/0201357 (2007-08-01), Smethurst et al.
patent: 2009/0225675 (2009-09-01), Baum et al.
patent: 9-130358 (1997-05-01), None
patent: 2003-304264 (2003-10-01), None
patent: 2005-33485 (2005-02-01), None
“Japanese Office Action”, Partial English language translation, mailed Sep. 29, 2009 from JP Patent Office for corresponding JP App. No. 2005-039528.

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