Shashi K Kumar

US Patent:

7774447, Aug 10, 2010

Filed:

Apr 26, 2006

Appl. No.:

11/411602

Inventors:

Gurinderjit Chahal - Fremont CA, US
Shashi Kumar - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/177
G06F 11/00

US Classification:

709223, 714 4

Abstract:

A method and apparatus for implementing troubleshooting of a network connectivity problem between a client computer coupled to a local switch and an end point on the network utilizes a client_proxy module instantiated on the local switch. The module automatically runs a series of tests utilizing the IP and MAC addresses of the client computer source addresses and reports the results of the tests.

US Patent:

8499177, Jul 30, 2013

Filed:

Mar 14, 2011

Appl. No.:

13/047417

Inventors:

Koussalya Balasubramanian - Sunnyvale CA, US
Shashi Kumar - Saratoga CA, US
Sandeep Arvindkumar Patel - Los Gatos CA, US
Anoop Vetteth - Fremont CA, US
Frederick R. Schindler - Sunnyvale CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 1/26

US Classification:

713300

Abstract:

A technique is able to direct a power signal from a port power controller to one of multiple physical ports. The technique involves activating a set of port power controllers. Each port power controller is constructed and arranged to deliver power to a device through at most one physical port at a time. The technique further involves performing a set of discovery operations to discover device presence, the set of discovery operations providing discovery data. The technique further involves providing, based on the discovery data provided by the set of discovery operations, a set of switching signals to switching circuitry which is coupled to a set of physical ports. The switching circuitry is constructed and arranged to steer power signals from the activated set of port power controllers through the set of physical ports to deliver power to a set of devices.

US Patent:

20070124458, May 31, 2007

Filed:

Nov 30, 2005

Appl. No.:

11/291297

Inventors:

Shashi Kumar - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/173

US Classification:

709224000

Abstract:

A method and a system for notifying a user regarding events occurring on nodes in a network are provided. Information related to the events occurring on the nodes is received at a network device. The received information is converted into a syndicated format. A part or whole of the converted information is transmitted to notify the user about the events occurring on the nodes in the network, when the user queries for the converted information. The user can be notified without browsing a homepage of the network device.

US Patent:

20070255868, Nov 1, 2007

Filed:

Apr 26, 2006

Appl. No.:

11/411609

Inventors:

Gurinderjit Chahal - Fremont CA, US
Shashi Kumar - San Jose CA, US

International Classification:

G06F 13/38

US Classification:

710062000

Abstract:

A network device includes a USB slave port for connection to a computer to allow configuration and management of the network device utilizing the plug and play capability of interfaces defined by the USB standard.

US Patent:

20070256067, Nov 1, 2007

Filed:

Apr 26, 2006

Appl. No.:

11/411610

Inventors:

Gurinderjit Chahal - Fremont CA, US
Shashi Kumar - San Jose CA, US

International Classification:

G06F 9/44

US Classification:

717168000

Abstract:

A system and method of upgrading a software image on a device that automatically saves information regarding important settings on the device prior to the upgrade. The same set of information is obtained after the upgrade and compared with stored information to determine whether any changes have occurred due to activating the upgrade. The results of the comparison are reported to a user.

US Patent:

20120216239, Aug 23, 2012

Filed:

Feb 23, 2011

Appl. No.:

12/932456

Inventors:

Navindra Yadav - Cupertino CA, US
Atul Mahamuni - Fremont CA, US
Bora A. Akyol - Richland WA, US
Peirong Feng - Sunnyvale CA, US
Thomas J. Enderwick - La Jolla CA, US
Aji Joseph - San Jose CA, US
Shashi Kumar - San Jose CA, US
Sambasivam Valliappan - San Jose CA, US

Assignee:

CISCO TECHNOLOGY, INC. - San Jose CA

International Classification:

G06F 21/24
G06F 15/173

US Classification:

726 1

Abstract:

In one embodiment, a method includes receiving a communication from an endpoint device at a network access device located within a data path between the endpoint device and a network, identifying a network admission control policy for the endpoint device, enforcing at the network access device, the network admission control policy for traffic received from the endpoint device, and forwarding at the network access device, traffic from the endpoint device to the network in accordance with the network admission control policy. An apparatus is also disclosed.

US Patent:

20130297955, Nov 7, 2013

Filed:

Jun 26, 2013

Appl. No.:

13/927879

Inventors:

Shashi Kumar - Saratoga CA, US
Sandeep Arvindkumar Patel - Los Gatos CA, US
Anoop Vetteth - Fremont CA, US
Frederick R. Schindler - Sunnyvale CA, US

International Classification:

G06F 1/26

US Classification:

713310

Abstract:

A technique is able to direct a power signal from a port power controller to one of multiple physical ports. The technique involves activating a set of port power controllers. Each port power controller is constructed and arranged to deliver power to a device through at most one physical port at a time. The technique further involves performing a set of discovery operations to discover device presence, the set of discovery operations providing discovery data. The technique further involves providing, based on the discovery data provided by the set of discovery operations, a set of switching signals to switching circuitry which is coupled to a set of physical ports. The switching circuitry is constructed and arranged to steer power signals from the activated set of port power controllers through the set of physical ports to deliver power to a set of devices.

US Patent:

57872554, Jul 28, 1998

Filed:

Apr 12, 1996

Appl. No.:

8/631790

Inventors:

Jonathan M. Parlan - San Jose CA
Shashi Kumar - Fremont CA

Assignee:

Cisco Systems, Inc. - San Jose CA

International Classification:

G06F 1200

US Classification:

39520063

Abstract:

A special memory overlay circuit uses a first DRAM buffer memory in combination with a second faster SRAM buffer memory to reduce the time required to translate information into different network protocols. Packet data is stored in the DRAM buffer memory and packet headers requiring manipulation are stored in the SRAM buffer memory. Because the SRAM has a faster data access time than the DRAM buffer memory, a processor can reformat the packet header into different network protocols in a shorter amount of time. Packet headers also use a relatively small amount of memory compared to remaining packet data. Since the SRAM buffer memory is only used for storing packet headers, relatively little additional cost is required to utilize the faster SRAM memory while substantially increasing network performance.