Method and system for visualizing network performance characteristics

• US 7,743,128 B2
• Filed: 04/20/2005
• Issued: 06/22/2010
• Est. Priority Date: 04/20/2005
• Status: Active Grant

• Current Assignee: Computer Associates Think Inc. (Broadcom, Inc.)
• Original Assignee: Netqos Incorporated (Broadcom, Inc.)
• Inventors: Mullarkey, Peter
• Primary Examiner(s): Bates; Kevin
• Assistant Examiner(s): Ahmed; Mohammed
• Application Number:
  US11/110,973
• Publication Number:
  US 20060242282A1
• Time in Patent Office: 1,889 Days
• Field of Search: 709/223, 709/224, 709/238, 702/182, 715/733, 715/734, 715/735, 715/736, 715/737, 715/738
• US Class Current: 709/223
• CPC Class Codes: H04L 41/5003 Managing SLA; Interaction between SLA and QoS
• CPC Class Codes: H04L 41/5009 Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
• CPC Class Codes: H04L 41/5032 Generating service level reports
• CPC Class Codes: H04L 41/5096 wherein the managed service relates to distributed or central networked applications
• CPC Class Codes: H04L 43/045 for graphical visualisation of monitoring data
• CPC Class Codes: H04L 43/067 using time frame reporting
• CPC Class Codes: H04L 43/16 Threshold monitoring

Abstract

Techniques for visualizing and monitoring the quality of service for a computer network. Herein, a method and system monitor network transactions and behaviors for the computing network, which computing network includes one or more client subnets accessing one or more servers, The monitoring may be independent of client site monitors. Statistical data is gathered for relating to at least the network, the server, and the applications for generating a plurality of measurements. The measurements assess at least one quality of service indicator associated with the performance of the computer network. The method and system graphically display the plurality of measurements of the quality of service indicator according to the date and time of gathering the statistical data and further display graphically the degree by which each of the measurements of the quality of service indicator varies from a predetermined threshold quality of service level for the computing network. Also, dynamic quality of service indicators are monitored against average quality of service indicators.

Claims

1. A method for visualizing and monitoring network performance of a computer network, comprising the steps of:

displaying graphically a visually interlinked view of at least four normalized nominal network quality of service (Qos) indicators, said normalized nominal network QoS indicators associated on a radial plot and visually interlinked to form a nominal performance polygon, said nominal performance polygon comprising a plurality of corners, each of said corners corresponding to a separate one of said plurality of normalized nominal QoS indicators, each of said normalized nominal network QoS indicators being substitutable with other normalized nominal network performance indicators;

measuring real-time performance variations for each of said normalized nominal network QoS indicators;

displaying graphically said real-time performance variations as real-time normalized points on said radial plot;

visually interlinking said real-time normalized points for forming a time-varying performance polygon, said time-varying performance polygon relating to real-time network performance variations of said computer network; and

continually monitoring network performance of the computer network by comparing variations of said time-varying performance polygon with said nominal performance polygon.

2. The method of claim 1, further comprising the step of graphically displaying said plurality of measurements of said at least one of said QoS indicators from the group consisting essentially of network round trip time, percent (%) byte loss, volume (to) traffic, volume (from) traffic, number of total sessions, number of retransmission, and number of users.

3. The method of claim 1, further comprising the step of determining a plurality of network QoS problems as a result of monitoring the real-time network performance variations of the computer network using said time-varying performance polygon and said nominal performance polygon.

12. The method of claim 1, wherein said nominal network QoS indicators are normalized using the average of said nominal network QoS indicators over a determined time frame of measurement.

13. The method of claim 1, further comprising the step of interchanging said at least one of said QoS indicators for populating said radial plot in accordance with a determined analysis associated with visualizing and monitoring network performance.

14. The method of claim 1, further comprising the method for visualizing and monitoring network performance of a computer network by displaying on a violation intensity chart selected aggregate violations of a plurality of service agreements associated with network performance, said violation intensity chart providing a visualization of the degree by which network QoS indicators exceed predetermined thresholds.

15. The method of claim 14, wherein said violation intensity chart displays various color intensities representative of the level by which said thresholds are exceeded.

16. The method of claim 14, wherein said violation intensity chart displays as a Cartesian chart with an x-axis and y-axis, said x-axis displaying the hours in a day, said y-axis displaying the days in a month.

4. A system for visualizing and monitoring quality of service of a computing network, the system comprising:

display circuitry for displaying graphically a visually interlinked view of at least four normalized nominal network QoS indicators, said normalized nominal network QoS indicators associated on a radial plot and visually interlinked to form a nominal performance polygon, said nominal performance polygon comprising a plurality of corners, each of said corners corresponding to a separate one of said plurality of normalized nominal QoS indicators;

measurement circuitry for measuring real-time performance variations for each of said normalized nominal network QoS indicators;

said display circuitry further for displaying graphically said real-time performance variations as real-time normalized points on said radial plot;

interlinking instructions associated with said display circuitry for visually interlinking said real-time normalized points for forming a time-varying performance polygon, said time-varying performance polygon relating to real-time network performance variations of said computer network; and

monitoring circuitry for continually monitoring network performance of the computer network by comparing variations of said time-varying performance polygon with said nominal performance polygon.

5. The system of claim 4, further comprising instructions for forming said nominal performance polygon for a time period equaling approximately one month.

6. The system of claim 4, wherein said time-varying performance polygon is formed for a time period equaling approximately one day.

7. The system of claim 5, wherein said nominal performance polygon is formed for a time period equaling approximately one month.

8. A network quality of service display system for visualizing and monitoring the quality of service for a computer network, comprising:

means for displaying graphically a visually interlinked view of at least four normalized nominal network (Qos) indicators, said normalized nominal network QoS indicators associated on a radial plot and visually interlinked to form a nominal performance polygon, said nominal performance polygon comprising a plurality of corners, each of said corners corresponding to a separate one of said plurality of normalized nominal QoS indicators, each of said normalized nominal network QoS indicators being substitutable with other normalized nominal network performance indicators;

means for measuring real-time performance variations for each of said normalized nominal a plurality of network QoS indicators;

means for displaying graphically said real-time performance variations as real-time normalized points on said radial plot;

means for visually interlinking said real-time normalized points for forming a time-varying performance polygon, said time-varying performance polygon relating to time network performance variations of said computer network; and

means for continually monitoring network performance of the computer network by comparing variations of said time-varying performance polygon with said nominal performance polygon.

9. The system of claim 8, wherein a plurality of said time-varying performance polygons are displayed in time sequence for displaying progressive network performance over a predetermined time period.

10. The system of claim 8, wherein time-varying network performance characteristics are classified according to associated classifications of groupings of a plurality of said time-varying performance polygons.

11. A computer program product, comprising a computer usable medium having computer readable program code means embodied therein for operation in association with a computer network for visualizing and monitoring the quality of service of the computer network, the computer usable medium comprising:

computer readable program code means for displaying graphically a visually interlinked view of at least four normalized nominal network (Qos) indicators, said normalized nominal network QoS indicators associated on a radial plot and visually interlinked to form a nominal performance polygon, said nominal performance polygon comprising a plurality of corners, each of said corners corresponding to a separate one of said plurality of normalized nominal QoS indicators, each of said normalized nominal network QoS indicators being substitutable with other normalized nominal network performance indicators;

computer readable program code means for measuring real-time performance variations for each of said normalized nominal network QoS indicators;

computer readable program code means for displaying graphically said real-time performance variations as real-time normalized points on said radial plot;

computer readable program code means for visually interlinking said real-time normalized points for forming a time-varying performance polygon, said time-varying performance polygon relating to real-time network performance variations of said computer network; and

computer readable program code means for continually monitoring network performance of the computer network by comparing variations of said time-varying performance polygon with said nominal performance polygon.