System and method for attributing a portion of a response time to an element of a virtual network

• US 7,877,230 B2
• Filed: 03/15/2007
• Issued: 01/25/2011
• Est. Priority Date: 03/15/2007
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Marigalante Ltd. (Hewlett-Packard Enterprise Company)
• Original Assignee: Shunra Software Ltd. (Israel) (HP Inc.)
• Inventors: Ofel, Gal, Jacobson, Shlomo, Horovitz, Yair
• Primary Examiner(s): Nghiem; Michael P
• Assistant Examiner(s): Khuu; Cindy H
• Application Number:
  US11/724,295
• Publication Number:
  US 20080228914A1
• Time in Patent Office: 1,412 Days
• Field of Search: 702/182, 702/79, 702/108, 702/117, 702/118, 702/125, 702/176, 702/189, 703/13, 703/14, 703/16, 703/17, 703/21, 703/23, 703/26, 709/223, 709/224
• US Class Current: 702/182
• CPC Class Codes: H04L 43/0864 Round trip delays
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A system and method for evaluating a portion of a response time of an application that is attributable to an element on a virtual IP network by emulating a condition on a network, running the application on the network under the emulated network conditions and measuring a portion of the response time of the application that is attributable to elements on the network under such emulated conditions. The application may be varied and response times of various network elements may be measured under one or more of the variations.

Claims

1. A system comprising a processor to simulate a network and to create a plurality of virtual elements in said network, and further to simulate a network condition and to measure a portion of a response time of an application, said application run-over said simulated network under said simulated condition, said portion attributed to one of said virtual elements:

wherein said portion comprises a first value for said portion, and wherein a parameter value of said element is equal to a first parameter value for said element, and

wherein said processor is to;

alter said first parameter value for said element to a second parameter value for said element;

calculate a second value for said portion of said response time attributed to said element, said second value for said portion evaluated under said second parameter value for said element; and

wherein said processor is to compare said first value for said portion to said second value for said portion.

2. The system as in claim 1, comprising a memory to store a delay parameter of said element of said plurality of elements.

3. The system as in claim 1, comprising a memory to store predefined criteria for said portion of said response time;

and wherein said processor is to produce an indication upon said portion matching said criteria.

4. The system as in claim 3, wherein said memory is to store said indication, and comprising a display to show said indication of said element.

5. The system as in claim 1, wherein said processor is to calculate a plurality of said portions of said response time resulting from a plurality of runs of said application.

6. The system as in claim 1, wherein said processor is to calculate a parameter selected from the group consisting of:

a maximum period of said portion of said response time attributed to said element in a plurality of executions of said application,

an average period of said response time attributed to said element in said plurality of executions of said application,

a minimum period of said portion of said response time attributed to said element in said plurality of executions of said application,

a median period of said portion of said response time attributed to said element in a plurality of executions of said application,

a 90th percentile period of said portion of said response time attributed to said element in said plurality of executions of said application, and

a standard deviation of a period of said portion of said response time attributed to said element in said plurality of execution of said application.

7. The system as in claim 1, wherein said processor is to measure a portion of said response time attributed to said element.

8. The system as in claim 1, wherein said processor is to measure said portion of said response time for a plurality of alternative network routes.

9. A system comprising a processor to simulate a network and to create a plurality of virtual elements in said network, and further to simulate a network condition and to measure a portion of a response time of an application, said application run-over said simulated network under said simulated condition, said portion attributed to one of said virtual elements, wherein said application comprises a first application, and wherein said processor is to:

evaluate a portion of a response time of a second application executed on said network, said portion of said response time of said second application attributed to said element of said plurality of elements in said network; and

compare said portion of said response time of said first application to said portion of said response time of said second application attributed to said element.

10. A method comprising:

simulating by a computing device a virtual network and creating a plurality of virtual elements in said network;

simulating a network condition on said virtual network;

measuring a portion of a response time of an application on said virtual network under said simulated condition, said portion attributed to one of said virtual elements; and

displaying on a display device coupled to said computing device an indication when a portion of said response time of said virtual network element matches a criteria related to said element;

wherein said portion comprises a first value for said portion and comprising;

altering a parameter of said element;

measuring a second value for said portion of said response time, said second value attributed to said element under said altered parameter; and

comparing said first value for said portion to said second value for said portion.

11. The method as in claim 10, comprising displaying a plurality of values of said portion attributed to a plurality of said elements in said virtual network.

12. The method as in claim 10, comprising:

executing said application a plurality of times; and

calculating a parameter selected from the group consisting of;

a maximum period of said portion of said response time attributed to said element in said plurality of times,

a minimum period of said portion of said response time attributed to said element in said plurality of times,

an average period of said response time attributed to said element in said plurality of times,

a median of the periods of said portion of said response time attributed to said element in said plurality of times,

a 90th percentile of the periods of said portion of said response time attributed to said element in said plurality of times, and

a standard deviation of the period of said portion of said response time attributed to said element in said plurality of times.

13. The method as in claim 10, comprising storing a predefined criteria for said portion of said response time.

14. The method as in claim 10, comprising evaluating said portion of said response time for a plurality of alternative network routes.

15. A non-transitory computer readable medium containing computer instructions stored therein for causing a computer processor to perform:

simulating a virtual network and creating a plurality of virtual elements in said network;

simulating a network condition on a virtual network; and

measuring a portion of a response time of an application on said virtual network under said simulated network condition, said portion attributed to one of said virtual elements;

wherein said portion comprises a first value for said portion and comprising;

altering a parameter of said element;

measuring a second value for said portion of said response time, for said element under said altered parameter; and

comparing said first value for said portion to said second value for said portion.

16. A non-transitory computer readable medium as in claim 15, comprising displaying a portion of said response time attributed to a plurality of said elements in said virtual network.

17. A non-transitory computer readable medium as in claim 15, comprising:

executing said application a plurality of times; and

calculating a parameter selected from the group consisting of;

a maximum period of said portion of said response time attributed to said element in said plurality of times,

a minimum period of said portion of said response time attributed to said element in said plurality of times,

an average period of said response time attributed to said element in said plurality of times, a median of the periods of said portion of said response time attributed to said element in said plurality of times,

a 90th percentile of the periods of said portion of said response time attributed to said element in said plurality of times, and

a standard deviation of the period of said portion of said response time attributed to said element in said plurality of times.

18. A non-transitory computer readable medium as in claim 15, comprising:

storing a predefined criteria for said portion of said response time; and

producing an indication upon said portion matching said criteria.

19. A non-transitory computer readable medium as in claim 15, comprising evaluating said portion of said response time for a plurality of alternative network routes.