Vipul V Shah

US Patent:

7020713, Mar 28, 2006

Filed:

Oct 10, 2000

Appl. No.:

09/685657

Inventors:

Vipul Shah - San Jose CA, US
N.S.S. Narasimha Rao - Kakinada, IN
Alka Agrawal - Karnataka, IN
Subrata Sarkar - Bangalore, IN
Kumar Subramanian - Bangalore, IN
Himanshu Shukla - Bangalore, IN

Assignee:

Novell, Inc. - Provo UT

International Classification:

G06F 15/16

US Classification:

709235, 37039532, 718105

Abstract:

A method and system is provided for balancing work load for a plurality of computer processors in a multiple processor computer system. In such a system, there are a plurality of packets to be processed. First, a plurality of hash buckets are generated and each packet is assigned to a bucket by performing a predetermined hash function. The different hash buckets are then assigned to the processors based on the workload of all the processors. In connection with processing connections with a timer thread, a plurality of connections are processed with a plurality of timer threads. A plurality of hash buckets are provided, and each connection is mapped to one of the hash buckets. Further, each hash bucket is assigned to a processor timer thread based on a workload thereof.

US Patent:

7555499, Jun 30, 2009

Filed:

Sep 23, 2004

Appl. No.:

10/950023

Inventors:

Vipul Manubhai Shah - Foster City CA, US
John Mark Beresniewicz - San Mateo CA, US
Nauman Ahmed Chaudhry - New Orleans LA, US
Kyle Hailey - San Francisco CA, US
Hui Lin - Sunnyvale CA, US
Hsiao-te Su - Milpitas CA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

G06F 7/00
G06F 17/00
G06F 12/00
G06F 17/30
G06F 11/00

US Classification:

707103R, 707101, 707202, 714 1, 714 2, 714 15, 714 25, 714 38, 714 39, 714 42, 714 43, 714 47, 714 48, 714 56

Abstract:

A method and apparatus for diagnosing database performance problems using a plurality of wait classes is provided. A set of statistical data that describes current activity within a database system is periodically retrieved. The set of statistical data may include information about the current activity of each user session connected to the database system. Thereafter, a set of cumulative statistical data that describes activity in the database system over a period of time is updated to reflect the retrieved set of statistical data. The set of cumulative statistical data includes statistics associated with each of a plurality of wait classes. A graphical user interface that displays the set of cumulative statistical data may be presented to a user. The graphical user interface allows the user to quickly ascertain the nature of the database performance problems by providing a view of the set of cumulative statistical data.

US Patent:

7694009, Apr 6, 2010

Filed:

Dec 7, 2005

Appl. No.:

11/296664

Inventors:

Vipul Shah - San Jose CA, US
N. S. S. Narasimha Rao - Kakinada, IN
Alka Agrawal - Bangalore, IN
Subrata Sarkar - Bangalore, IN
Kumar Subramanian - Bangalore, IN
Himanshu Shukla - Bangalore, IN

Assignee:

Novell, Inc. - Provo UT

International Classification:

G06F 15/16

US Classification:

709235, 37039532, 718105

Abstract:

A method and system is provided for balancing work load for a plurality of computer processors in a multiple processor computer system. In such a system, there are a plurality of packets to be processed. First, a plurality of hash buckets are generated and each packet is assigned to a bucket by performing a predetermined hash function. The different hash buckets are then assigned to the processors based on the workload of all the processors. In connection with processing connections with a timer thread, a plurality of connections are processed with a plurality of timer threads. A plurality of hash buckets are provided, and each connection is mapped to one of the hash buckets. Further, each hash bucket is assigned to a processor timer thread based on a workload thereof.

US Patent:

7719959, May 18, 2010

Filed:

Apr 20, 2007

Appl. No.:

11/738435

Inventors:

Vipul Shah - Cupertino CA, US
Gnanaprakasam Pandian - Cupertino CA, US
Vamsi Mohan Kodavanty - Fremont CA, US
Arun Sastry - Palo Alto CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 11/07

US Classification:

370220, 370219, 370386, 370221, 370225

Abstract:

In one embodiment a switch has active and standby LAYER 2 switch interfaces coupled, respectively, to device interfaces of first and second LAYER 2/LAYER 3 network devices. The active switch interface is configured to forward all egress traffic and accept all ingress traffic and the standby switch interface is configured to forward only IGMP messages and configured to block all ingress traffic.

US Patent:

20120300756, Nov 29, 2012

Filed:

May 24, 2011

Appl. No.:

13/068926

Inventors:

Vipul Shah - Cupertino CA, US
Bhanu Gopalasetty - San Ramon CA, US
Navindra Yadav - Cupertino CA, US
Sudhir K. Jain - Fremont CA, US
Rohit Suri - Fremont CA, US

Assignee:

CISCO TECHNOLOGY, INC. - San Jose CA

International Classification:

H04W 84/02
H04W 4/00

US Classification:

370338, 370328

Abstract:

In one embodiment, a method includes receiving a packet from a source wireless device at a second switch, the source wireless device previously associated with a first switch and roamed to and associated with the second switch, wherein a point of presence for the source wireless device is maintained at the first switch, inserting into the packet a direction indicator, and forwarding the packet from the second switch to the first switch, the direction indicator identifying the packet as being transmitted towards the point of presence for the source wireless device to prevent a forwarding loop. An apparatus is also disclosed.

US Patent:

20200127943, Apr 23, 2020

Filed:

Dec 18, 2019

Appl. No.:

16/719869

Inventors:

- Santa Clara CA, US
Vipul P. Shah - Santa Clara CA, US

International Classification:

H04L 12/937
H04L 12/935
H04L 12/761
H04L 12/931

Abstract:

A network device includes a first network processor that forwards packets based on a first forwarding information table; a second network processor that forwards packets based on a second forwarding information table; a first group of ports operably connected to the first network processor; and a second group of ports operably connected to the second network processor. The first forwarding information table specifies that packets, received by the first network processor, that specify a destination device reachable by the first group of ports and the second group of ports are forwarded by a port of the first group of ports. The second forwarding information table specifies that packets, received by the second network processor, that specify the destination device reachable by the first group of ports and the second group of ports are forwarded by a port of the second group of ports.

US Patent:

20190058673, Feb 21, 2019

Filed:

Oct 19, 2018

Appl. No.:

16/165542

Inventors:

- Santa Clara CA, US
Vipul P. Shah - Santa Clara CA, US

International Classification:

H04L 12/937
H04L 12/761
H04L 12/751
H04L 12/931
H04L 12/707

Abstract:

A network device includes a first network processor that forwards packets based on a first forwarding information table; a second network processor that forwards packets based on a second forwarding information table; a first group of ports operably connected to the first network processor; and a second group of ports operably connected to the second network processor. The first forwarding information table specifies that packets, received by the first network processor, that specify a destination device reachable by the first group of ports and the second group of ports are forwarded by a port of the first group of ports. The second forwarding information table specifies that packets, received by the second network processor, that specify the destination device reachable by the first group of ports and the second group of ports are forwarded by a port of the second group of ports.

US Patent:

20180246943, Aug 30, 2018

Filed:

Feb 13, 2018

Appl. No.:

15/895018

Inventors:

- New York NY, US
Andrea FANG - Bridgewater NJ, US
Robert J. PRIOR - New York NY, US
Vipul V. SHAH - Scarsdale NY, US
Jonathan Scott HAJEK - Jackson Heights NY, US

International Classification:

G06F 17/30

Abstract:

A system and method for processing raw transaction records received from multiple data sources. The system and method receive multiple raw transaction records from multiple data sources. Transaction pair records are generated from the raw transaction records. Location and entity fields including raw information are identified from the transaction pair records. The raw location and entity information is resolved to generate resolved location and entity information capable of aggregation and further processing, such as the deriving of analytics.