Multiplex communications – Diagnostic testing – Fault detection
Reexamination Certificate
2006-05-02
2006-05-02
Nguyen, Brian (Department: 2661)
Multiplex communications
Diagnostic testing
Fault detection
C370S249000
Reexamination Certificate
active
07039014
ABSTRACT:
An improved mechanism for analysing connection establishment/teardown process or identifying failure points (i.e. nodes) in a PNNI network through the use of a novel debug IE (information element) that is propagated along the communication path for a given connection to activate diagnostic functions on targeted switching devices. The mechanism comprises a method that is initiated by embedding a debug information element (IE) in a data packet that is propagated to various switching devices (the nodes) along the communication path. The debug IE is encoded such that it will be recognized by selected switching devices along the path, but ignored by other non-selected switching devices. Further encoding identifies targeted switching devices that are suspected to be possible failure points to confirm that they are functioning properly. Upon receipt and extraction of the debug IE from the data packet, the targeted switching devices are instructed to automatically perform one or more analysis functions to verify their operation. The results of these tests are then forwarded to an operator of the targeted switching devices, such as a network operator or a vendor that supplies the targeted switching devices to the network.
REFERENCES:
patent: 4679186 (1987-07-01), Lea
patent: 5056085 (1991-10-01), Vu
patent: 5271000 (1993-12-01), Engbersen et al.
patent: 5506838 (1996-04-01), Flanagan
patent: 5781529 (1998-07-01), Liang et al.
patent: 5943391 (1999-08-01), Nordling
patent: 5946316 (1999-08-01), Chen et al.
patent: 6055561 (2000-04-01), Feldman et al.
patent: 6147965 (2000-11-01), Burns et al.
patent: 6147971 (2000-11-01), Rochberger et al.
patent: 6208623 (2001-03-01), Rochberger et al.
patent: 6243384 (2001-06-01), Eriksson et al.
patent: 6282195 (2001-08-01), Miller et al.
patent: 6292463 (2001-09-01), Burns et al.
patent: 6456600 (2002-09-01), Rochberger et al.
patent: 6473408 (2002-10-01), Rochberger et al.
patent: 6532237 (2003-03-01), Or et al.
patent: 6708291 (2004-03-01), Kidder
patent: 6754219 (2004-06-01), Cain et al.
patent: 6757289 (2004-06-01), Cain et al.
Krishnamurthy Chandrasekar
Zeng Huaqing
No associations
LandOfFree
Network-wide connection-based debug mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Network-wide connection-based debug mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Network-wide connection-based debug mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3582287