Multiplex communications – Diagnostic testing
Reexamination Certificate
2004-03-05
2010-06-22
Nguyen, Steven H (Department: 2473)
Multiplex communications
Diagnostic testing
C370S276000, C370S252000, C370S278000
Reexamination Certificate
active
07742423
ABSTRACT:
A method for measuring and determining the duplex modes of a network interface. The method assumes the network interface to be operating in a half-duplex mode until the bandwidth utilization reaches a threshold. When the threshold is reached, the method checks the traffic collision in the interface. If there is no collision, then the duplex mode is determined to be full-duplex. If there is collision, then the duplex mode is determined to be half-duplex and an alarm is set off. In another embodiment, the interface type is determined through SNMP. If the interface is a WAN interface, then the interface is determined to be full-duplex.
REFERENCES:
patent: 5561666 (1996-10-01), Christensen et al.
patent: 5610903 (1997-03-01), Crayford
patent: 5673253 (1997-09-01), Shaffer
patent: 5761438 (1998-06-01), Sasaki
patent: 5812525 (1998-09-01), Teraslinna
patent: 5825755 (1998-10-01), Thompson et al.
patent: 6222850 (2001-04-01), Johnson
patent: 6421541 (2002-07-01), Karlsson et al.
patent: 6580697 (2003-06-01), Gardner et al.
patent: 6665275 (2003-12-01), Davy et al.
patent: 6885641 (2005-04-01), Chan et al.
patent: 6938086 (2005-08-01), Banga
patent: 7420938 (2008-09-01), Scaglione et al.
patent: 7636327 (2009-12-01), Doran
patent: 2003/0043741 (2003-03-01), Mukai et al.
patent: 2003/0198247 (2003-10-01), Gardner et al.
patent: 2003/0235209 (2003-12-01), Garg et al.
patent: 2004/0218529 (2004-11-01), Rodosek et al.
patent: 2005/0073955 (2005-04-01), MacLean et al.
patent: 2005/0207360 (2005-09-01), Costo et al.
patent: 2006/0235654 (2006-10-01), Parnes
patent: 2007/0054645 (2007-03-01), Pan
patent: 2007/0121525 (2007-05-01), Jenster
patent: 2007/0133402 (2007-06-01), Lee et al.
patent: 2007/0159965 (2007-07-01), Kopf et al.
Patrol Dashboard Technical Bulletin, Version 6.6.00, Apr. 24, 2003; Patch available for Multiple Fixes.
RFC 2233. The Interfaces Group MIB using SMI v2, Nov. 1997.
Golovinsky Eugene
Lukacs Zsolt
Noonan Wesley J.
BMC Software Inc.
Elpenord Candal
Nguyen Steven H
Wong Cabello Lutsch Rutherford & Brucculeri LLP
LandOfFree
Method of heuristic determination of network interface... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of heuristic determination of network interface..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of heuristic determination of network interface... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4173387