Krishnan G Iyer

US Patent:

8230491, Jul 24, 2012

Filed:

Aug 11, 2006

Appl. No.:

11/503554

Inventors:

Krishnan Sivaramakrishna Iyer - Cary NC, US

Assignee:

OPNET Technologies, Inc. - Bethesda MD

International Classification:

G06F 21/00

US Classification:

726 12, 709208, 709220, 709221, 370252, 370389, 713168, 713165

Abstract:

An access discovery method and system discovers and stores the proper access protocol for each device on a network. The discovery process includes progressively sequencing through state transitions until a successful access protocol sequence is determined, and an access script corresponding to this sequence is stored for subsequent access to the device. Preferably, the protocol-discovery algorithm is modeled as a state table that includes a start state and two possible terminal states: success and failure. A state machine executes the state table until a terminal state is reached; if the terminal state is a failure, the system backtracks to attempt an alternative sequence. The process continues until the success state is reached or until all possible sequences are executed without success. An exemplary state model is provided that has been shown to be effective for modeling network devices from a variety of vendor devices.

US Patent:

8305931, Nov 6, 2012

Filed:

Aug 20, 2009

Appl. No.:

12/544317

Inventors:

Krishnan Sivaramakrishna Iyer - Cary NC, US
James Mark Shaw - Cary NC, US
Jerrold A. Stiffler - Cary NC, US

Assignee:

OPNET Technologies, Inc. - Bethesda MD

International Classification:

H04L 12/28

US Classification:

370254, 709224

Abstract:

A method and/or system is configured to improve the results of an auto-detection of network devices based on the causes of detection failures in preceding runs of the auto-detection process. As each device that is believed to be in the network is found to be undiscovered, the identification of the device and information regarding the cause(s) of non-discovery are stored. Prior to the next auto-detection run, one or more of the discovery parameters are modified, based on the causes associated with the undiscovered devices. The extent to which the discovery parameters are modified is preferably based on the apparent stability of the network, or upon the detection of changes to the network.

US Patent:

20120291112, Nov 15, 2012

Filed:

Jul 23, 2012

Appl. No.:

13/556174

Inventors:

KRISHNAN Sivaramakrishna Iyer - Cary NC, US

International Classification:

G06F 21/00

US Classification:

726 7, 726 14

Abstract:

An access discovery method and system discovers and stores the proper access protocol for each device on a network. The discovery process includes progressively sequencing through state transitions until a successful access protocol sequence is determined, and an access script corresponding to this sequence is stored for subsequent access to the device. Preferably, the protocol-discovery algorithm is modeled as a state table that includes a start state and two possible terminal states: success and failure. A state machine executes the state table until a terminal state is reached; if the terminal state is a failure, the system backtracks to attempt an alternative sequence. The process continues until the success state is reached or until all possible sequences are executed without success. An exemplary state model is provided that has been shown to be effective for modeling network devices from a variety of vendor devices.

US Patent:

6976857, Dec 20, 2005

Filed:

Jul 14, 2005

Appl. No.:

11/160886

Inventors:

Shuklesh Shukla - Jaipur, IN
Krishnan S. Iyer - Cary NC, US
Neville N. Kharas - Cary NC, US

Assignee:

Sigma Electric Manufacturing Corp. - Garner NC

International Classification:

H01R012/00

US Classification:

439100

Abstract:

A ground clamp having upper and lower clamp members interconnected by clamping screws for mechanical and electrical connection with a grounding member, and a frontally projecting boss on the lower clamp member having a downwardly opening slot for receiving a ground wire which is retained by a set screw forward of the clamping screws whereby the various screws may be independently tightened without interference from adjacent screws.

US Patent:

20140331093, Nov 6, 2014

Filed:

May 1, 2014

Appl. No.:

14/267349

Inventors:

- San Francisco CA, US
Krishnan Sivaramakrishna Iyer - Cary NC, US

Assignee:

RIVERBED TECHNOLOGY, INC. - San Francisco CA

International Classification:

H04L 12/24
G06F 11/07

US Classification:

714 48, 709223

Abstract:

Embodiments provide systems, methods, and computer program products for network management application to automatically determine a session prompt for a network device and perform error handling. After logging in to a network device, the network management application records the first session prompt response. The network management application sends a series of empty carriage returns and random characters and records the session prompt responses. The network management application compares the responses and determines whether the prompt is a static or a dynamic prompt based on the results. The network management application elicits error responses from the network device by sending additional random characters and records the results in an error handling dictionary. The error handling dictionary is used later when running user-provided commands, enabling a determination of whether a command executed successfully.