Systems, methods and computer program products for applications traffic based communications network performance testing

• US 5,937,165 A
• Filed: 09/10/1996
• Issued: 08/10/1999
• Est. Priority Date: 09/10/1996
• Status: Expired due to Term

• Current Assignee: Ixia (Keysight Technologies, Inc.)
• Original Assignee: Ganymede Software, Inc. (Open Text Corporation)
• Inventors: Joyce, Steven Thomas, Schwaller, Peter James, Walker, John Quillian II, Huntley, Timothy Scott
• Primary Examiner(s): Meky, Moustafa M.
• Application Number:
  US08/711,248
• Time in Patent Office: 1,064 Days
• Field of Search: 395/200.54, 395/200.65, 395/200.76, 395/200.81, 395/187.01, 395/200.53, 395/200.6, 370/231, 370/232, 370/235
• US Class Current: 709/224
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

Communications network performance is tested utilizing a test scenario determined based on a type of applications traffic expected on the network to be tested. A console node is provided on the network for establishing the test scenario and assigning the test scenario to endpoint nodes on the network to be tested. Each endpoint node is assigned an endpoint node specific test protocol. Execution of the test protocols by the endpoint nodes is initiated by the console node. Performance data such as throughput, transaction rate and response time may be monitored at selected ones of the endpoint nodes and reported to the console node either as it is generated or after completion of the test. The test scenario may be terminated when all endpoint node specific test protocols have completed execution or when any one endpoint completes execution of its test protocol. Multiple network protocols may be utilized within a single test scenario. Each endpoint node specific test protocol includes an associated script representing a type of applications traffic such as a credit check, or a database update. Endpoint nodes execute tests as applications level programs on existing endpoint nodes on the network to be tested allowing testing of networks using actual protocol stacks independent of the applications programs available on existing endpoint nodes.

Claims

1. A communications network performance testing system for testing a communications network including a plurality of endpoint nodes comprising:

means for determining a type of application communication traffic expected on said network;

configuring means responsive to said determining means for determining a first network communication test protocol for a first one of said endpoint nodes based on said type of application communication traffic and for determining a second network communication test protocol for a second one of said endpoint nodes based on said type of application communication traffic;

communicating means operatively connected to said configuring means for communicating said first network communication test protocol to said first one of said endpoint nodes and for communicating said second network communication test protocol to said second one of said endpoint nodes;

initiating means operatively connected to said first one of said endpoint nodes and to said second one of said endpoint nodes for initiating execution of said first network communication test protocol and said second network communication test protocol; and

monitoring means operatively connected to said network for monitoring performance of said network during execution of said first network communication test protocol and said second network communication test protocol to obtain performance data.

2. A communications network performance testing system according to claim 1 further comprising network interface means operatively connected to said network for connecting said system to said network and wherein said communicating means communicates said first network communication test protocol to said first one of said endpoint nodes and said second network communication test protocol to said second one of said endpoint nodes on said network through said network interface means.

3. A communications network performance testing system according to claim 2 wherein said means for initiating execution initiates execution of said first network communication test protocol and said second network communication test protocol on said network through said network interface means.

4. A communications network performance testing system according to claim 3 wherein said means for initiating execution includes means for synchronizing initiating said first network communication test protocol and said second network communication test protocol.

5. A communications network performance testing system according to claim 1 further comprising means operatively connected to said network for detecting a communications capability of at least one of said endpoint nodes.

6. A communications network performance testing system according to claim 5 further comprising means operatively connected to said network for detecting active network protocol stacks on at least one of said endpoint nodes.

7. A communications network performance testing system according to claim 1 further comprising means for terminating execution of said first network communication test protocol and said second network communication test protocol.

8. A communications network performance testing system according to claim 7 wherein said terminating means includes means for terminating execution of both said first and said second network communication test protocols when said first or said second network communication test protocol completes execution.

9. A communications network performance testing system according to claim 1 further comprising means operatively connected to said monitoring means for analyzing said performance data to generate performance measurements.

10. A communications network performance testing system according to claim 9 wherein said performance measurements are selected from the group consisting of throughput and transaction rate.

11. A communications network performance testing system according to claim 1 wherein said communicating means includes means for providing said first network communication test protocol to an application level program executing on said first one of said plurality of endpoint nodes and means for providing said second network communication test protocol to an application level program executing on said second one of said plurality of endpoint nodes.

12. A communications network performance testing system according to claim 11 wherein said application level programs directly communicate through protocol stacks.

13. A communications network performance testing system according to claim 1 wherein said first and said second network communication test protocols include information selected from the group consisting of a type of data to transmit, how many times to transmit the data, what portion of the first and second network communication test protocols to time during execution, and what acknowledgment to receive during execution of the first and second network communication test protocols.

14. A communications network performance testing system according to claim 13 wherein said first and said second network communication test protocols include a test protocol script selected from the group consisting of credit check, database update, file transfer, inquiry and packet transmit.

15. A communications network performance testing system according to claim 1 wherein said first network communication test protocol includes a first network protocol for said first network communication test protocol and a second network protocol for said second network communication test protocol.

16. A communications network performance testing system according to claim 15 wherein said first network protocol and said second network protocol are different network protocols.

17. A communications network performance testing system according to claim 16 wherein said first network protocol is TCP/IP.

18. A communications network performance testing system according to claim 1 wherein said communications network is a computer network and wherein said first one of said endpoint nodes and said second one of said endpoint nodes reside on computers and wherein said configuring means, said communicating means, said initiating means and said monitoring means are contained within a console node which resides on a computer.

19. A communications network performance testing system according to claim 18 wherein a plurality of said endpoint nodes reside in a single computer.

20. A communications network performance testing system according to claim 18 wherein said first one of said endpoint nodes comprises:

endpoint network interface means for operatively connecting said first one of said endpoint nodes to said network;

endpoint engine means operatively connected to said endpoint network interface means for executing said first network communication test protocol responsive to said means for initiating execution; and

,

endpoint master means operatively connected to said endpoint network interface means for starting said endpoint engine means.

21. A communications network performance testing system according to claim 20 wherein said endpoint engine means includes endpoint node monitoring means for monitoring performance of said network during execution of said first network communication test protocol to obtain performance data.

22. A communications network performance testing system according to claim 21 further comprising reporting means operatively connected to said endpoint node monitoring means for reporting said monitored network performance data to said console node.

23. A communications network performance testing system according to claim 22 wherein said reporting means includes means for reporting said monitored network performance data to said console node during execution of said first and said second network communication test protocols.

24. A communications network performance testing system according to claim 22 wherein said reporting means includes means for reporting said monitored network performance data to said console node after said first and said second network communication test protocols have completed execution.

25. A communications network performance testing system according to claim 22 wherein said means for monitoring said network of said console node comprises means for receiving said monitored performance data from said reporting means.

26. A communications network performance testing system according to claim 20 further comprising stack interface means operatively connected to said endpoint engine means for interfacing said endpoint engine means to a protocol stack residing on said endpoint node computer to thereby provide access to said network for executing said first network communication test protocol.

27. A method for testing performance of a communications network including a plurality of endpoint nodes comprising the steps of:

determining a type of application communication traffic expected on the communications network;

assigning a first network communication test protocol to a first endpoint node based on the type of application communication traffic expected from said determining step;

assigning a second network communication test protocol to a second endpoint node based on the type of application communication traffic expected from said determining step;

initiating execution of the first network communication test protocol and the second network communication test protocol; and

monitoring the performance of the network while the test protocols are executed.

28. The method for testing performance of a communications network according to claim 27 wherein said steps of assigning a first network communication test protocol and assigning a second network communication test protocol are preceded by the step of adding a console node for the communications network.

29. The method for testing performance of a communications network according to claim 28 wherein said determining step includes the step of defining a test scenario at the console node to simulate communications traffic between the endpoint nodes to be tested.

30. The method for testing performance of a communications network according to claim 29 wherein said step of defining a test scenario includes the step of selecting a plurality of test protocol scripts to be assigned to selected endpoint nodes from the group consisting of credit check, database update, file transfer, inquiry and packet transmit.

31. The method for testing performance of a communications network according to claim 28 wherein said monitoring step is followed by the step of analyzing the performance data to generate performance measurements selected from the group consisting of throughput and transaction rate.

32. The method for testing performance of a communications network according to claim 28 wherein said step of assigning a first network communication test protocol includes the step of providing the first network communication test protocol to one of the endpoint nodes from the console node.

33. The method for testing performance of a communications network according to claim 32 wherein said step of assigning a second network communication test protocol includes the step of providing the second network communication test protocol to a second one of the endpoint nodes from the console node.

34. The method for testing performance of a communications network according to claim 28 wherein a plurality of said endpoint nodes reside in a single computer.

35. The method for testing performance of a communications network according to claim 28 wherein said initiating step includes the step of synchronizing initiating the first network communication test protocol and the second network communication test protocol from the console node.

36. The method for testing performance of a communications network according to claim 28 wherein said steps of assigning a first network communication test protocol and assigning a second network communication test protocol are preceded by the step of detecting a communications capability of at least one of the endpoint nodes from the console node.

37. The method for testing performance of a communications network according to claim 36 wherein said steps of assigning a first network communication test protocol and assigning a second network communication test protocol are preceded by the step of detecting active network protocol stacks on at least one of the endpoint nodes from the console node.

38. The method for testing performance of a communications network according to claim 28 wherein said monitoring step is followed by the step of terminating execution of the first network communication test protocol and the second network communication test protocol.

39. The method for testing performance of a communications network according to claim 38 wherein said monitoring step is performed by at least one of the first or the second endpoint nodes during execution of said first and second network communication test protocols.

40. The method for testing performance of a communications network according to claim 38 wherein said terminating step comprises the step of terminating execution of all the network communications test protocols when the associated network communications test protocol completes execution on any one of the endpoint nodes.

41. The method for testing performance of a communications network according to claim 28 wherein said monitoring step is performed by at least one of the first or the second endpoint nodes during execution of the first and second network communication test protocols and wherein said monitoring step includes the step of reporting the performance data from said monitoring step to the console node as it is generated during execution of the first and second network communication test protocols.

42. The method for testing performance of a communications network according to claim 41 wherein said reporting step is followed by the step of analyzing the performance data to generate performance measurements.

43. The method for testing performance of a communications network according to claim 42 wherein the generated performance measurements are selected from the group consisting of throughput and transaction rate.

44. The method for testing performance of a communications network according to claim 28 wherein said step of assigning a first network communication test protocol includes the step of assigning a first network communication test protocol including information selected from the group consisting of a type of data to transmit, how many times to transmit the data, what portion of the first network communication test protocol to time during execution, and what acknowledgment to receive during execution of the first network communication test protocol;

and, wherein said step of assigning a second network communication test protocol includes the step of assigning a second network communication test protocol including information selected from the group consisting of a type of data to transmit, how many times to transmit the data, what portion of the second network communication test protocol to time during execution, and what acknowledgment to receive during execution of the second network communication test protocol.

45. The method for testing performance of a communications network according to claim 28 wherein the console node and the first endpoint node reside on computers and wherein said step of assigning the first network communication test protocol to the first endpoint node includes the step of providing node specific test protocol information to an application level program executing on the first endpoint node.

46. The method for testing performance of a communications network according to claim 45 wherein said step of assigning a first network communication test protocol to the first endpoint node includes the step of transmitting the first network communication test protocol to the first endpoint node on the network.

47. The method for testing performance of a communications network according to claim 45 wherein said step of assigning the second network communication test protocol to the second endpoint node includes the step of providing node specific test protocol information to an application level program executing on the second endpoint node.

48. The method for testing performance of a communications network according to claim 47 wherein said step of assigning the second network communication test protocol to the second endpoint node includes the step of transmitting the second network communication test protocol to the second endpoint node on the network.

49. A method for testing performance of a communications network including a plurality of endpoint nodes comprising the steps of:

adding a console node for the communications network;

determining a type of application communication traffic expected on the communications network;

assigning a first network communication test protocol to a first one of the endpoint nodes based on the type of application communication traffic expected from said determining step;

assigning a second network communication test protocol to a second one of the endpoint nodes based on the type of application communication traffic expected from said determining step;

initiating execution of the first network communication test protocol and the second network communication test protocol;

monitoring the performance of the network at at least one of the endpoint nodes while the first and second network communication test protocols are executed to obtain performance data;

terminating execution of the first network communication test protocol and the second network communication test protocol; and

reporting the performance data from said monitoring step to the console node on the network.

50. The method for testing performance of a communications network according to claim 49 wherein said reporting step is followed by the step of removing invalid results from the performance data.

51. The method for testing performance of a communications network according to claim 49 wherein said reporting step is followed by the step of analyzing the performance data to generate performance measurements.

52. The method for testing performance of a communications network according to claim 51 wherein the performance measurements are selected from the group consisting of throughput and transaction rate.

53. The method for testing performance of a communications network according to claim 51 wherein said step of assigning a first network communication test protocol includes the step of assigning a first network communication test protocol including information selected from the group consisting of a type of data to transmit, how many times to transmit the data, what portion of the first network communication test protocol to time during execution, and what acknowledgment to receive during execution of the first network communication test protocol;

and, wherein said step of assigning a second network communication test protocol includes the step of assigning a second network communication test protocol including information selected from the group consisting of a type of data to transmit, how many times to transmit the data, what portion of the second network communication test protocol to time during execution, and what acknowledgment to receive during execution of the second network communication test protocol.

54. The method for testing performance of a communications network according to claim 49 wherein said determining step includes the step of defining a test scenario at the console node to simulate communications traffic between the endpoints to be tested.

55. The method for testing performance of a communications network according to claim 54 wherein said step of defining a test scenario includes the step of selecting a plurality of test protocol scripts to be assigned to selected endpoint nodes from the group consisting of credit check, database update, file transfer, inquiry and packet transmit.

56. A computer program product for testing performance of a communications network including a plurality of endpoint nodes, the computer program product comprising:

a computer-readable storage medium having computer- readable program code means embodied in said medium, said computer-readable program code means comprising;

computer-readable program code means for determining a type of application communication traffic expected on said network based on user input;

computer-readable program code means, responsive to said computer-readable program code means for determining a type of application communication traffic, for determining a first network communication test protocol for a first one of said endpoint nodes based on said type of application communication traffic and for determining a second network communication test protocol for a second one of said endpoint nodes based on said type of application communication traffic;

computer-readable program code means for communicating said first network communication test protocol to said first one of said endpoint nodes and for communicating said second network communication test protocol to said second one of said endpoint nodes;

computer-readable program code means for initiating execution of said first network communication test protocol and said second network communication test protocol; and

computer-readable program code means for monitoring performance of said network during execution of said first network communication test protocol and said second network communication test protocol to obtain performance data.

57. A computer program product according to claim 56, wherein said computer-readable program code means for communicating includes computer-readable program code means for communicating over said network to said first and said second ones of said endpoint nodes.

58. A computer program product according to claim 57 wherein said computer-readable program code means for initiating execution initiates execution of said first network communication test protocol and said second network communication test protocol through said computer-readable program code means for communicating over said network.

59. A computer program product according to claim 58 wherein said computer-readable program code means for initiating execution includes computer-readable program code means for synchronizing initiating said first network communication test protocol and said second network communication test protocol.

60. A computer program product according to claim 56 further comprising computer-readable program code means for detecting a communications capability of at least one of said endpoint nodes.

61. A computer program product according to claim 60 further comprising computer-readable program code means for detecting active network protocol stacks on at least one of said endpoint nodes.

62. A computer program product according to claim 56 further comprising computer-readable program code means for terminating execution of said first network communication test protocol and said second network communication test protocol.

63. A computer program product according to claim 62 wherein said computer-readable program code means for terminating includes computer-readable program code means for terminating execution of both said first and said second network communication test protocols when said first or said second network communication test protocol completes execution.

64. A computer program product according to claim 56 further comprising computer-readable program code means for analyzing said performance data from said computer-readable program code means for monitoring to generate performance measurements.

65. A computer program product according to claim 64 wherein said performance measurements are selected from the group consisting of throughput and transaction rate.

66. A computer program product according to claim 56 wherein said computer-readable program code means for communicating includes computer-readable program code means for providing said first network communication test protocol to an application level program directly communicating through a network protocol stack executing on said first one of said endpoint nodes and computer-readable program code means for providing said second network communication test protocol to an application level program directly communicating through a network protocol stack executing on said second one of said endpoint nodes.

67. A computer program product according to claim 56 wherein said first and said second network communication test protocols include information selected from the group consisting of a type of data to transmit, how many times to transmit the data, what portion of the first and said second network communication test protocols to time during execution, and what acknowledgment to receive during execution of the first and said second network communication test protocols.

68. A computer program product according to claim 67 wherein said first and said second network communication test protocols include a test protocol script selected from the group consisting of credit check, database update, file transfer, inquiry and packet transmit.

69. A computer program product according to claim 56 wherein said first network communication test protocol includes a first network protocol for said first network communication test protocol and a second network protocol for said second network communication test protocol.

70. A computer program product according to claim 56 wherein said computer-readable program code means for monitoring includes computer-readable program code means for receiving said monitored performance data from at least one of said first or said second one of said endpoint nodes.