Method and apparatus for providing trend information from network devices
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United States of America Patent
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Jul 14, 2009
Grant Date -
May 17, 2007
app pub date -
Nov 15, 2005
filing date -
Nov 15, 2005
priority date (Note) -
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Abstract
A method of providing performance trend information from a device in a packet-switched network to a network management station comprises maintaining in the device one or more state variables that store values associated with data processing functions of the device; storing in the device a trend indicator value and a trend tendency value, both associated with a particular state variable among the state variables; periodically sampling the particular state variable to obtain one or more sampled values; determining and updating the trend indicator value with a direction of change in the sampled values of the particular state variable over a particular time; determining and updating the trend tendency value with a rate of change in the one or more sampled values of the particular state variable over the particular time; and sending the trend indicator value and the trend tendency value to the network management station.
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