Gerald M Pepper

Author:

Gerald Pepper

ISBN #:

0872498794

Author:

Gerald L. Pepper

ISBN #:

0070492867

US Patent:

6999891, Feb 14, 2006

Filed:

Feb 27, 2004

Appl. No.:

10/789697

Inventors:

Gerald Pepper - Thousand Oaks CA, US

Assignee:

IXIA - Calabasas CA

International Classification:

G01M 19/00
H04L 7/02
H04J 3/06
G01R 31/28

US Classification:

702122, 370503, 370508, 714712

Abstract:

There is disclosed an independent deskew lane. An independent deskew lane may be implemented in a testing system to test whether a device under test conforms to a physical layer communications standard. The testing system may have lane cards to transmit data on data lanes to the device under test and receive data from the device under test. A deskew card is also included in the testing system. The deskew card may prepare deskew information independent of the lane cards. The deskew card may have a transmitter circuit and a receiver circuit included therein which implements the independent deskew lane. A computer may be coupled to the testing system. Test patterns may be provided to the lane cards and the deskew card from the computer.

US Patent:

7194535, Mar 20, 2007

Filed:

Oct 1, 2001

Appl. No.:

09/968432

Inventors:

Clifford L. Hannel - Thousand Oaks CA, US
Douglas E. Schafer - Agoura Hills CA, US
Errol Ginsberg - Malibu CA, US
Gerald R. Pepper - Thousand Oaks CA, US

Assignee:

IXIA - Calabasas CA

International Classification:

G06F 15/16
G06F 17/50

US Classification:

709224, 703 13

Abstract:

Methods and systems for testing stateful network communications devices are disclosed. According to one test method, stateful and simulated stateless sessions are established with a device under test. Packets are sent to the device under test over the stateful and stateless connections. Information received on the stateful connections is used to alter test conditions on the stateless connections. As a result, a realistic mix of network traffic can be achieved with a reduced amount of hardware.

US Patent:

7496664, Feb 24, 2009

Filed:

Jan 24, 2007

Appl. No.:

11/626484

Inventors:

Clifford L. Hannel - Thousand Oaks CA, US
Douglas E. Schafer - Agoura Hills CA, US
Errol Ginsberg - Malibu CA, US
Gerald R. Pepper - Thousand Oaks CA, US

Assignee:

IXIA - Calabasas CA

International Classification:

G06F 15/16
G06F 17/50

US Classification:

709224, 703 13

Abstract:

There is disclosed a method for testing a stateful network communications device. A plurality of stateful and simulated stateless connections are established with the device under test. Packets are sent to the device under test, and responses are received from the device enter test, over the stateless and stateful connections. Measurements are obtained for at least one of the stateless and stateful connections.

US Patent:

7496688, Feb 24, 2009

Filed:

Jan 30, 2004

Appl. No.:

10/768824

Inventors:

Gerald Pepper - Thousand Oaks CA, US

Assignee:

IXIA - Calabasas CA

International Classification:

G06F 15/16
G06F 15/173
G06F 15/177

US Classification:

709249, 370236, 370292, 709238

Abstract:

Evaluation of label switched data units is disclosed. In a method, a data unit is received or obtained, and, when the data unit is a label switched data unit, a kind of an encapsulated data unit included in a message body of the data unit is determined by analyzing the message body. The method may be achieved as part of a network interface included on a board in a network testing unit and in a computing device.

US Patent:

7643431, Jan 5, 2010

Filed:

Nov 10, 2006

Appl. No.:

11/558855

Inventors:

Gerald R. Pepper - Thousand Oaks CA, US

Assignee:

IXIA - Calabasas CA

International Classification:

H04J 3/14

US Classification:

370252, 370517, 709224

Abstract:

There is disclosed methods, a computing device, a storage medium, and an apparatus for testing a network. Received packets may have two or more packet group identification fields. The packet group identification fields may be combined to generate a packet group number. The packet group number may be generated by first masking unused bits of the packet group identification fields and then concatenating the unmasked bits. Test statistics may be measured, accumulated, and stored for one or more packet groups comprising packets having the same packet group number.

US Patent:

7769049, Aug 3, 2010

Filed:

Oct 17, 2008

Appl. No.:

12/253836

Inventors:

Gerald Pepper - Thousand Oaks CA, US
Viet Quoc Tran - Reseda CA, US

Assignee:

Ixia - Calabasas CA

International Classification:

H04J 3/02
H04J 3/24

US Classification:

370474, 370537

Abstract:

There is disclosed a packet generator and method of generating a packet flow. The packet generator may include a plurality of parallel transmit engines to form packets for transmission and a multiplexer to coherently interleave packets formed by the plurality of transmit engines.

US Patent:

7821962, Oct 26, 2010

Filed:

Nov 7, 2008

Appl. No.:

12/267364

Inventors:

Gerald Pepper - Thousand Oaks CA, US
Manley Klassen - Oxnard CA, US

Assignee:

Ixia - Calabasas CA

International Classification:

H04L 12/26

US Classification:

370252, 370250, 370253

Abstract:

A method and an apparatus for memory access optimization are disclosed. Data unit information may be accumulated for a plurality of data units. Partial network statistics for the plurality of data units may be read sequentially in round robin fashion from each of a plurality of memory banks of a memory. The partial networks statistics may be updated based on the plurality of data units. The updated partial network statistics may be written sequentially in round robin fashion to each of the plurality of memory banks.

US Patent:

7826377, Nov 2, 2010

Filed:

Jun 16, 2006

Appl. No.:

11/424832

Inventors:

Gerald Pepper - Thousand Oaks CA, US

Assignee:

Ixia - Calabasas CA

International Classification:

H04L 12/26

US Classification:

370241

Abstract:

Memory access optimization and communications statistics computation are disclosed. A method may include receiving data unit information for a plurality of data units. Versions of partial network traffic statistic for the data units based on a current data unit may be prepared. A version of the partial network traffic statistic may be stored sequentially in round robin fashion in each of a plurality of banks of a memory. The method may also include receiving a request for full network traffic statistic and preparing the full network traffic based on each set of the partial network traffic statistics. The full network traffic statistics may be provided to the requestor. The methods may be achieved on a network card in a network testing system or via software executing in a network testing system.