Pawan D Singh

US Patent:

6914907, Jul 5, 2005

Filed:

Aug 5, 1999

Appl. No.:

09/368651

Inventors:

Rajeev Bhardwaj - Union City CA, US
Pawan Singh - Palo Alto CA, US
Curt Moffitt - Sunnyvale CA, US
Paul Grepps - South Riding VA, US
Medhavi Bhatia - Rockville MD, US
Sanjay Khanna - Novato CA, US

Assignee:

Alcatel Canada Inc. - Kanata

International Classification:

H04J003/26

US Classification:

370432, 370390

Abstract:

A method and apparatus that includes processing for providing multi-cast transmissions within a data network begins by determining, for a source virtual network, a list of downstream virtual sub-networks for multi-cast traffic based on a multi-cast routing protocol. The processing then continues by determining multi-cast group membership on as per downstream virtual sub-network, edge device, and port basis. The process continues when a data packet is received via the source virtual network. The processing then continues by generating a multi-cast session table entry based on the list of downstream virtual sub-networks and the multi-cast group membership. The process continues by establishing virtual connections between the source virtual network and edge devices coupled to virtual sub-networks identified in the list of downstream virtual sub-networks. Having generated the virtual connections, the processing continues by downloading the multi-cast session table to the edge devices. The edge devices utilize the multi-cast session table entry to determine where the received data packets are to be forwarded.

US Patent:

7480602, Jan 20, 2009

Filed:

Jan 20, 2005

Appl. No.:

11/040348

Inventors:

Paul Kingston Duffie - Palo Alto CA, US
Patrick Hornberger - Mountain View CA, US
Carl Hubbard - Los Altos CA, US
Satomi Okazaki - Palo Alto CA, US
Pawan Singh - Sunnyvale CA, US

Assignee:

The Fanfare Group, Inc. - Mountain View CA

International Classification:

G06F 17/50

US Classification:

703 13, 703 15, 703 22, 714 38, 714 31, 714724

Abstract:

The present invention provides a system verification system that automatically generates a behavior model modeling the system under test in terms of actions of a test case and a range of expected reactions corresponding to those actions. In this regard, the system verification system obtains a set of actions and individual reactions corresponding to the actions from a plurality of runs of a test case for the system under test, and automatically generates the behavior model representing the system under test in terms of the set of actions and a range of expected reactions each range corresponding one of the actions. The range of expected reactions generalizes and includes all or most of the individual reactions corresponding to said one of the actions.

US Patent:

8516370, Aug 20, 2013

Filed:

Feb 26, 2010

Appl. No.:

12/714396

Inventors:

Paul Kingston Duffie - Palo Alto CA, US
Kevin Edward Oelze - Mountain View CA, US
Adam James Bovill - San Francisco CA, US
Pawan Kumar Singh - Sunnyvale CA, US
Amish Jayeshbhai Patel - Fremont CA, US

Assignee:

Spirent Communications, Inc. - Sunnyvale CA

International Classification:

G06F 3/00

US Classification:

715704

Abstract:

A script including a plurality of actions to process in a session associated with a system is generated via a user interface, where the script includes both actions and metaactions. The actions correspond to commands associated with the session to be executed on the system, and the metaactions correspond to a selected plurality of the commands. The script is generated by receiving the actions and the metaactions to process on the system via the user interface associated with the session for interfacing with the system, capturing the actions and the metaactions, and saving the captured actions and metaactions to generate the script.

US Patent:

20100057704, Mar 4, 2010

Filed:

Aug 29, 2008

Appl. No.:

12/201797

Inventors:

Paul Kingston Duffie - Palo Alto CA, US
Andrew Thomas Waddell - Portola Valley CA, US
Adam James Bovill - San Francisco CA, US
Yujie Lin - Sunnyvale CA, US
Pawan Singh - Sunnyvale CA, US

Assignee:

The Fanfare Group, Inc. - Mountain View CA

International Classification:

G06F 7/06
G06F 17/21
G06F 17/30

US Classification:

707 4, 715235, 707E17062

Abstract:

A response map descriptively modeling the textual format of a test response of a system verification test is created without a priori understanding of the format of the given response. Such response map is applied to the test response or other similar test responses that share the same format. More specifically, a method of identifying and extracting one or more formats of textual data included in test responses from system verification testing of a system under test is provided, by receiving a first test response including first textual data in one or more formats, generating a response map descriptively modeling the first test response without a priori information of the one or more formats, and applying the response map to a second test response to identify and extract second textual data from the second test response. The second textual data is also in the one or more formats.

US Patent:

20110004460, Jan 6, 2011

Filed:

Jul 2, 2009

Appl. No.:

12/497321

Inventors:

Paul Kingston Duffie - Palo Alto CA, US
Pawan Kumar Singh - Sunnyvale CA, US
Adam James Bovill - San Francisco CA, US
Rory Stephen Latchem - Wellington, NZ

Assignee:

THE FANFARE GROUP, INC. - Mountain View CA

International Classification:

G06F 9/455

US Classification:

703 28

Abstract:

A virtual testbed for system verification test is provided in which emulated responses are associated with certain steps of a system verification test. The emulated responses can be manually entered or populated with previous test results obtained from execution of the emulation-enabled steps on a real testbed. When the emulation-enabled steps are executed, the system verification test uses the emulated responses as the responses corresponding to the actions of the emulation-enabled steps as if the steps were executed on the real testbed, without actually executing the emulation-enabled steps on the real testbed. Therefore, the virtual testbed of the present invention allows development of test scripts for system verification test without constant, actual access to the real testbed.