Steven Leon Joyce

US Patent:

6408335, Jun 18, 2002

Filed:

Sep 22, 1998

Appl. No.:

09/158461

Inventors:

Peter James Schwaller - Raleigh NC
Steven Thomas Joyce - Raleigh NC
Timothy Scott Huntley - Raleigh NC

Assignee:

NetIQ Corporation - Santa Clara CA

International Classification:

G06F 15173

US Classification:

709224, 709223, 703 13, 703 21

Abstract:

Communications network performance is tested utilizing a test scenario simulating actual communications traffic on the network to be tested. The test scenario includes an endpoint node specific test protocol between an endpoint node pair including a first and associated second endpoint node on the network to be tested. A partner endpoint node test protocol is determined from the endpoint node specific test protocol and communicated to from the first endpoint node to the associated second endpoint node of the endpoint node pair. A plurality of endpoint node pairs may executed different endpoint node specific test protocols under a test scenario. A console node is provided on the network for establishing the test scenario and assigning the test scenario to endpoint node pairs and initiating execution of the test scenario. Performance data may be monitored at one of the endpoint nodes of each endpoint node pair and reported to the console node either as it is generated or after completion of the test. The test scenario may be terminated when any one endpoint node pair completes execution of its test protocol.

US Patent:

6625648, Sep 23, 2003

Filed:

Jan 7, 2000

Appl. No.:

09/479565

Inventors:

Peter James Schwaller - Raleigh NC
Joan Marie Bellinghausen - Cary NC
Dana Scott Borger - Cary NC
Jeffrey Todd Hicks - Cary NC
Steven Thomas Joyce - Raleigh NC
Mark Eric McCorry - Raleigh NC
Christopher David Selvaggi - Cary NC
Mark Clarence Zelek - Cary NC

Assignee:

NetIQ Corporation - Santa Clara CA

International Classification:

G06F 15173

US Classification:

709224, 709223, 709228, 370230, 370466

Abstract:

Methods, systems and computer program products for testing the performance of a communication network including a plurality of endpoint nodes executing application programs which utilize the communications network are provided. A console node is provided on the network which may initiate operations by test agents executing on one or more of the plurality of endpoint nodes. The agents may generate network performance information using passive application monitoring and/or active endpoint pair based network testing responsive to scheduling instructions from the console node. Specific application programs may be designated for passive monitoring and active test protocols may be provided based on an expected type of application communication traffic. In another aspect of the present invention, one of a plurality of types of transaction models defining the beginning and ending reference point for a transaction timing measurement may be provided to the endpoint nodes for use in passive application monitoring. In a further aspect of the present invention, the endpoint nodes may be automatically discovered by the console node.

US Patent:

6901442, May 31, 2005

Filed:

Jan 7, 2000

Appl. No.:

09/479568

Inventors:

Peter James Schwaller - Raleigh NC, US
Joan Marie Bellinghausen - Cary NC, US
Dana Scott Borger - Cary NC, US
John C. Christensen - Raleigh NC, US
Steven Thomas Joyce - Raleigh NC, US
Roger Allen Lingle - Raleigh NC, US
David V. H. Quan - Cary NC, US
Scott Alan Southard - Raleigh NC, US

Assignee:

NetIQ Corporation - San Jose CA

International Classification:

G06F015/173

US Classification:

709224, 709223

Abstract:

Dynamic filtering methods, systems and computer program products are provided for network performance test results which may apply network troubleshooting expertise and knowledge of network topology to select and display test results in a manner which may facilitate analysis of those results by IT staffs. In a further aspect of the present invention, a severity index is provided which may be generated based on exception events from a plurality of network performance measurements, for example, response time, throughput and availability, which measurements are generated from test results obtained from agents located on various devices on a computer network. The test results may be obtained from either passive application monitor agents or active network test agents. In another aspect of the present invention, the exception events may be detected based on automatically generated threshold criteria which may be provided user selectable sensitivity and may be based on a specified percentage criteria relative to baseline performance results. In a further aspect of the present invention, the test results may be stored using data buckets with the number of data buckets and/or the range of each of the data buckets being selected to provide a desired overall range and granularity for each of the plurality of network performance measurement types.

US Patent:

7274670, Sep 25, 2007

Filed:

Sep 27, 2002

Appl. No.:

10/259564

Inventors:

Jeffrey Todd Hicks - Cary NC, US
John Lee Wood - Raleigh NC, US
Gary Michael Weichinger - Cary NC, US
Steven Thomas Joyce - Raleigh NC, US

Assignee:

NetIQ Corporation - San Jose CA

International Classification:

H04L 12/26

US Classification:

370252, 370356

Abstract:

Methods, systems and computer program products are provided for evaluating performance of a network that supports packetized communications. A network test protocol that is associated with the packetized communication is initiated and network performance data is obtained based on the initiated network test protocol. An overall network quality rating is generated based on the obtained performance data and a network impairment indicator is calculated based on the overall network quality rating.

US Patent:

58389199, Nov 17, 1998

Filed:

Sep 10, 1996

Appl. No.:

8/711607

Inventors:

Peter James Schwaller - Raleigh NC
John Quillian Walker II - Raleigh NC
Steven Thomas Joyce - Raleigh NC
Timothy Scott Huntley - Raleigh NC

Assignee:

Ganymede Software, Inc. - Research Triangle Park NC

International Classification:

G01R 3100

US Classification:

39520054

Abstract:

Communications network performance is tested utilizing a test scenario simulating actual communications traffic on the network to be tested. The test scenario includes an endpoint node specific test protocol between an endpoint node pair including a first and associated second endpoint node on the network to be tested. A partner endpoint node test protocol is determined from the endpoint node specific test protocol and communicated to from the first endpoint node to the associated second endpoint node of the endpoint node pair. A plurality of endpoint node pairs may executed different endpoint node specific test protocols under a test scenario. A console node is provided on the network for establishing the test scenario and assigning the test scenario to endpoint node pairs and initiating execution of the test scenario. Performance data may be monitored at one of the endpoint nodes of each endpoint node pair and reported to the console node either as it is generated or after completion of the test.

US Patent:

58812377, Mar 9, 1999

Filed:

Sep 10, 1996

Appl. No.:

8/711195

Inventors:

Peter James Schwaller - Raleigh NC
John Quillian Walker - Raleigh NC
Steven Thomas Joyce - Raleigh NC
Timothy Scott Huntley - Raleigh NC

Assignee:

Ganymede Software, Inc. - Research Triangle Park NC

International Classification:

G06F 1700

US Classification:

39520054

Abstract:

Communications network performance is tested utilizing a test scenario simulating actual communications traffic 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.

US Patent:

59371650, Aug 10, 1999

Filed:

Sep 10, 1996

Appl. No.:

8/711248

Inventors:

Peter James Schwaller - Raleigh NC
John Quillian Walker - Raleigh NC
Steven Thomas Joyce - Raleigh NC
Timothy Scott Huntley - Raleigh NC

Assignee:

Ganymede Software, Inc - Research Triangle Park NC

International Classification:

G06F 1300

US Classification:

39520054

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.

US Patent:

6061725, May 9, 2000

Filed:

Jan 12, 1999

Appl. No.:

9/229031

Inventors:

Peter James Schwaller - Raleigh NC
John Quillian Walker - Raleigh NC
Steven Thomas Joyce - Raleigh NC
Timothy Scott Huntley - Raleigh NC

Assignee:

Ganymede Software Inc. - Morrisville NC

International Classification:

G06F 1300

US Classification:

709224

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.