Method and apparatus for providing trend information from network devices
First Claim
1. A method of providing performance trend information from a routing device or switching device in a packet-switched network to a network management station, the method comprising the computer-implemented steps of:
- creating and maintaining, in the device, one or more state variables that store values associated with data processing functions of the device;
creating and storing, in the device, a trend indicator value and a trend tendency value, both associated with a particular state variable among the one or more 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 one or more 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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Accused Products
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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Citations
27 Claims
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1. A method of providing performance trend information from a routing device or switching device in a packet-switched network to a network management station, the method comprising the computer-implemented steps of:
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creating and maintaining, in the device, one or more state variables that store values associated with data processing functions of the device;
creating and storing, in the device, a trend indicator value and a trend tendency value, both associated with a particular state variable among the one or more 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 one or more 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for providing performance trend information from a routing device or switching device in a packet-switched network to a network management station, comprising:
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means for creating and maintaining, in the device, one or more state variables that store values associated with data processing functions of the device;
means for creating and storing, in the device, a trend indicator value and a trend tendency value, both associated with a particular state variable among the one or more state variables;
means for periodically sampling the particular state variable to obtain one or more sampled values;
means for determining and updating the trend indicator value with a direction of change in the one or more sampled values of the particular state variable over a particular time;
means for 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
means for sending the trend indicator value and the trend tendency value to the network management station. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for providing performance trend information from a routing device or switching device in a packet-switched network to a network management station, comprising:
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a network interface that is coupled to the data network for receiving one or more packet flows therefrom;
a processor;
one or more stored sequences of instructions which, when executed by the processor, cause the processor to carry out the steps of;
creating and maintaining, in the device, one or more state variables that store values associated with data processing functions of the device;
creating and storing, in the device, a trend indicator value and a trend tendency value, both associated with a particular state variable among the one or more 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 one or more 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. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification