Process and system for dynamically measuring switch traffic

• US 6,011,838 A
• Filed: 06/06/1997
• Issued: 01/04/2000
• Est. Priority Date: 06/06/1997
• Status: Expired due to Fees

• Current Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Original Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Inventors: Cox, Stephen Todd
• Primary Examiner(s): Loomis, Paul
• Assistant Examiner(s): Barnie, Rexford N
• Application Number:
  US08/870,369
• Time in Patent Office: 942 Days
• Field of Search: 379/111, 379/112, 379/113, 379/34, 379/133, 379/134, 379/137
• US Class Current: 379/112.06
• CPC Class Codes: H04Q 2213/13164 Traffic (registration, measurement,...)
• CPC Class Codes: H04Q 2213/13166 Fault prevention
• CPC Class Codes: H04Q 2213/13175 Graphical user interface [GUI], WWW interface, visual indication
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13349 Network management
• CPC Class Codes: H04Q 3/0091 Congestion or overload control

Abstract

A process and system is disclosed for determining automatically and dynamically the correct time segment during which a switch or components of a switch receive peak traffic from a communications network. The process collects traffic data regarding the usage of a selected switch or selected switch components. The traffic data is collected over a selected journalling period (e.g., 30 days), which is periodically updated with new traffic data to maintain a journal of the most recent 30 days of collected traffic data. Collected traffic data is filtered to remove aberrant or corrupting data. An average peak usage segment for all of the segments of the journalling period is selected from the remaining filtered traffic data. By regularly adding new data to and removing old data from the journal, the resulting moving window will reflect recent changes in peak usage. Regularly (e.g., daily) selecting the average peak usage segment detects such changes quickly, with the result that the process of the present invention dynamically reacts to and determines changes in the peak usage segment for particular switch components. Peak usage segments and associated traffic data determined and collected by the present invention result in improved network traffic engineering. A system is disclosed for collecting, processing and evaluating traffic data in order to engineer network elements for optimal traffic flow.

Claims

1. A process for monitoring and improving management of communications network traffic handled by at least one switch having a plurality of components, the process comprising the steps of:

a) generating, at selected components of the switch, traffic data describing network communications traffic handled by each of the switch components;

b) periodically collecting traffic data from the selected switch components to form segments describing traffic data during different time periods;

c) automatically selecting at least one segment for each switch component that describes average peak usage of each switch component; and

d) analyzing traffic data describing communications traffic handled by a particular switch component during at least the selected segment of the particular switch component.

2. The process of claim 1 further comprising the step of filtering the traffic data to eliminate aberrant traffic data.

3. The process of claim 1 in which the selecting step further comprises the steps of:

a) collecting segments describing traffic during a single day;

b) storing a set of segments to form a journal comprising a preselected number of days of traffic data;

c) averaging the traffic data of common segments across the journal that share common time periods on different days; and

d) identifying the segment during which the highest average peak usage occurred.

4. The process of claim 1 further comprising the step of dynamically detecting a shift in the segment that describes average peak usage.

5. The process of claim 4 in which the detecting step further comprises the steps of:

a) automatically and periodically updating the journal to include segments for the most recent preselected number of days; and

b) repeating the automatic selecting step.

6. The process of claim 1 in which the analyzing step further comprises the steps of:

a) determining an actual load handled by the particular component during the selected segment; and

b) comparing the actual load to an operating load of the component to determine whether the component is under-utilized or over-utilized.

7. A method for monitoring selected components of multiple telecommunications switches in order to better manage communications traffic within a communications network having a number of network elements, the method comprising the steps of:

a) generating and buffering at a selected switch component segments of traffic data describing telecommunications traffic handled by the component over a discrete time period;

b) interfacing with the component to periodically retrieve the segments;

c) storing the segments in order to create a journal that comprises a moving window of communications traffic handled by the component;

d) selecting from the segments a peak usage time period during which peak usage of the component occurred;

e) dynamically detecting changes in peak usage of a component by periodically and automatically updating the journal with new segments and repeating the selecting step; and

f) comparing an average load of the component during the peak usage time period with an operational load of the component in order to manage the load on the component.

8. The method of claim 7 further comprising the step of filtering the segments to remove aberrant traffic data before performing the selecting step.

9. The method of claim 7 in which each of steps a through f are performed for each of the selected components of multiple switches.

10. The method of claim 7 in which the comparing step includes the step of determining the average load of the component by averaging the traffic data of segments within the journal that describe telecommunications handled by the component over the peak usage time period.

11. A system for mechanically managing communications traffic by automatically and dynamically selecting a time period during which a network element for a communications network handles peak communications traffic and analyzing the amount of traffic handled by the network element, the system comprising:

a) a collector for periodically recording traffic data comprising information about the communications traffic passing through at least one component of the network element;

b) a database for receiving and storing recorded traffic data;

c) a processor, coupled to the database, and programmed to;

(i) select from the traffic data a first busy hour that describes the average peak usage of the at least one component of the network element; and

(ii) use updated traffic data in the database to automatically detect a shift in average peak usage of the at least one component of the network element to a second busy hour.

12. The system of claim 11 further comprising means for filtering the traffic data to remove traffic data that does not conform to acceptable, pre-selected parameters.

13. The system of claim 11 in which the network element comprises a component of a switch selected from the group consisting of analog line units, digital loop line units, 3-way call line units, switch processors and ISDN line units.

14. The system of claim 11 further comprising an administration network for determining an operational capacity of the switch component and comparing the operational capacity with the traffic handled by the switch component during the average peak usage time period.

16. The network according to claim 14 further comprising means for determining the actual load on each of the selected components during their respective average peak usage segments.

15. A communications network comprising:

a) a plurality of network elements, each with multiple components adapted to generate traffic data describing traffic handled by each of selected components for a preset segment of time;

b) a collector, coupled to the network elements, for periodically collecting traffic data from selected components of each network element;

c) a database that receives from the collector sufficient traffic data to create a journal that describes traffic handled by the selected components over a period of days; and

d) a processor programmed to automatically and dynamically select, based on the journal, a segment describing the average peak usage of each of the selected components.

17. The network according to claim 15 further comprising means, coupled to the selecting means, for determining an operational capacity of each switch component and comparing the operational capacity of each switch component with the actual load.

18. The network according to claim 15 further comprising a plurality of data sources, coupled to the receiving and storing means, for providing data describing characteristics of the network elements and the components.

19. A method for dynamically monitoring traffic handled by multiple network elements disposed within a communication network, the process comprising:

a) collecting from a selected network element traffic data describing network communications traffic handled thereby over a selected period to form a journal;

b) analyzing the journal of traffic data to identify a first time slot during which traffic handled by the selected network element peaks; and

c) regularly adding new traffic data to the journal to form a moving window of traffic data, whereby the analyzing step is repeated on the moving window in order dynamically to detect any shift to a second time slot of peak traffic handled by the selected network element.

20. The method of claim 19 in which steps a through c are performed on at least two components of the network element.

21. The method of claim 20 in which traffic data is collected by coupling a traffic data collector to the at least two components of the network element and further comprising the step of averaging the traffic data for each of a plurality of time slots across the entire journal.