Multiplex communications – Diagnostic testing
Reexamination Certificate
2005-01-25
2010-11-02
Ryman, Daniel J (Department: 2466)
Multiplex communications
Diagnostic testing
C370S252000, C370S384000, C370S503000, C370S516000, C370S517000, C370S518000, C370S519000, C340S870030
Reexamination Certificate
active
07826376
ABSTRACT:
A method and mechanism for monitoring performance in a network computing system. A user application on a source system is configured to communication with a destination system. The application is configured to load a dynamic linked library upon execution. The dynamic linked library is configured to store packet identifiers and time stamp information for communication packets received from the application prior to the packets being conveyed to the destination system. Upon receipt of an acknowledgement packet from the destination system, the library code is configured to retrieve the previously stored time stamp information, determine transit latency information corresponding to the communication packet, and log the determined transit latency information. Acknowledgement packets may further include time stamp information which may be utilized to determine additional latency information corresponding to the communication packet and/or acknowledgement packet. Logged information may be used to distinguish application problems from network performance problems.
REFERENCES:
patent: 6182249 (2001-01-01), Wookey et al.
patent: 6889058 (2005-05-01), Tordera
patent: 6928473 (2005-08-01), Sundaram et al.
patent: 2002/0120727 (2002-08-01), Curley et al.
patent: 2003/0152041 (2003-08-01), Herrmann et al.
patent: 2004/0001493 (2004-01-01), Cloonan et al.
patent: 2004/0010487 (2004-01-01), Prahlad et al.
patent: 2004/0010595 (2004-01-01), Hiranaka
patent: 2007/0100473 (2007-05-01), Shvodian et al.
patent: 2007/0136480 (2007-06-01), Stephenson et al.
Mathis, M., Heffner, J., and Reddy, R., “Web100: Extended TCP Instrumentation for Research, Education and Diagnosis”, ACM Computer Communications Review, vol. 33, No. 3, Jul. 2003.
Kritov Slava
van Rietschote Hans F.
Blanton John
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Rankin Rory D.
Ryman Daniel J
Symantec Operating Corporation
LandOfFree
Detection of network problems in a computing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detection of network problems in a computing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of network problems in a computing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4152119