Debugging application performance over a network
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United States of America Patent
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Issued Date -
Feb 9, 2006
app pub date -
Jun 22, 2005
filing date -
Jun 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An application debugging switch also monitors application performance. The application debugging switch forwards the requests from a first host to a second host, and later forwards the response coming from that second host to that first host. As most of the applications work in a request--response architecture, the application debugging switch can measure the response time of the application. The switch attaches a timestamp to each request that it forwards. When the response to that request comes to the switch, the switch can determine the response time of that application. The application debugging switch collects multiple samples of response time over a certain period of time. These samples provide a good measurement for the average application response time. The response time is a combination of the network response time and the application response time. The application debugging switch holds multiple measurement classes. Each class defines different sources or destinations of traffic (IP addresses and networks) and different applications (TCP/UDP ports or content identifiers in the requests). Collecting the response time for each class separately allows zooming in to an application and user that experience bad service and detect the reason for their failure.
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