Ashwani A Singhal

US Patent:

8494000, Jul 23, 2013

Filed:

Feb 9, 2010

Appl. No.:

12/703086

Inventors:

Rajeev Nadkarni - Chelmsford MA, US
Narendra Byrapuram - Lowell MA, US
Mahesh Rajmane - Pune MA, US
Ashwani Singhal - Andover MA, US
Anil K. Singhal - Carlisle MA, US

Assignee:

NetScout Systems, Inc. - Westford MA

International Classification:

H04L 12/26

US Classification:

370469, 370465, 370474, 709223, 709224

Abstract:

A network monitor that segments data packets at variable locations of data packets and stores a subset of the segments for troubleshooting or analysis. The network monitor selects data packets to be stored based on a set of user-defined classifier rules and discards other data packets. Each data packets selected for storage are analyzed up to an application protocol layer to determine start locations and/or end locations of data fields in the data packet. A set of user-defined slice rules are applied to each analyzed data packets to segment the data packets at the determined locations of the data fields. A subset of the data packet segments is stored in the network monitor. By storing relevant portions of data packets and discarding other portions of the data packets, the amount of data of data to be stored in the network monitor can be significantly reduced.

US Patent:

8582454, Nov 12, 2013

Filed:

Apr 8, 2010

Appl. No.:

12/756638

Inventors:

Anil K. Singhal - Carlisle MA, US
Bruce A. Kelley - Westford MA, US
Rajeev Nadkarni - Chelmsford MA, US
Narendra Byrapuram - Lowell MA, US
Abhishek Saraswati - Santa Clara CA, US
Ashwani Singhal - Andover MA, US

Assignee:

NetScout Systems, Inc. - Westford MA

International Classification:

H04L 12/26

US Classification:

370252, 709224

Abstract:

A network monitoring system that summarizes a plurality of data packets of a session into a compact session record for storage and processing. Each session record may be produced in real-time and made available during the session and/or after the termination of the session. Depending on protocols, a network monitoring system extracts different sets of information, removes redundant information from the plurality of data packets, and adds performance information to produce the session record. The network monitoring system may retrieve and process a single session record or multiple session records for the same or different protocols to determine cause of events, resolve issues in a network or evaluate network performance or conditions. The session record enables analysis in the units of session instead of individual packets. Hence, the network monitoring system can analyze events, issues or performance of the network more efficiently and effectively.

US Patent:

20040054680, Mar 18, 2004

Filed:

Jun 13, 2003

Appl. No.:

10/462220

Inventors:

Bruce Kelley - Westford MA, US
Anil Singhal - Carlisle MA, US
Ashwani Singhal - Andover MA, US
Rajeev Nadkarni - North Chelmsford MA, US
Bruce Sweet - North Reading MA, US

Assignee:

NetScout Systems, Inc. - Westford MA

International Classification:

G06F017/00

US Classification:

707/100000

Abstract:

Network performance data is collected, recorded, and normalized. In one embodiment, a set of first performance data collected by an agent in response to network transactions initiated by the agent and a second set of performance data resulting from passively monitoring traffic on the network are received. The first and second sets of performance data are normalized to create a set of constantly formatted network performance data capable of convenient analysis.

US Patent:

20140040464, Feb 6, 2014

Filed:

Oct 10, 2013

Appl. No.:

14/051301

Inventors:

Anil K. Singhal - Carlisle MA, US
Bruce A. Kelley - Westford MA, US
Rajeev Nadkarni - Chelmsford MA, US
Narendra Byrapuram - Lowell MA, US
Abhishek Saraswati - Santa Clara CA, US
Ashwani Singhal - Andover MA, US

Assignee:

NETSCOUT SYSTEMS, INC. - Westford MA

International Classification:

H04L 12/26

US Classification:

709224

Abstract:

A network monitoring system that summarizes a plurality of data packets of a session into a compact session record for storage and processing. Each session record may be produced in real-time and made available during the session and/or after the termination of the session. Depending on protocols, a network monitoring system extracts different sets of information, removes redundant information from the plurality of data packets, and adds performance information to produce the session record. The network monitoring system may retrieve and process a single session record or multiple session records for the same or different protocols to determine cause of events, resolve issues in a network or evaluate network performance or conditions. The session record enables analysis in the units of session instead of individual packets. Hence, the network monitoring system can analyze events, issues or performance of the network more efficiently and effectively.

US Patent:

20170264506, Sep 14, 2017

Filed:

May 23, 2017

Appl. No.:

15/603034

Inventors:

- Westford MA, US
Rajeev Nadkarni - Chelmsford MA, US
Narendra Byrapuram - Lowell MA, US
Abhishek Saraswati - Santa Clara CA, US
Ashwani Singhal - Andover MA, US

Assignee:

NetScout Systems, Inc - Westford MA

International Classification:

H04L 12/26
H04L 12/24
H04L 29/06

Abstract:

A network monitoring system that summarizes a plurality of data packets of a session into a compact session record for storage and processing. Each session record may be produced in real-time and made available during the session and/or after the termination of the session. Depending on protocols, a network monitoring system extracts different sets of information, removes redundant information from the plurality of data packets, and adds performance information to produce the session record. The network monitoring system may retrieve and process a single session record or multiple session records for the same or different protocols to determine cause of events, resolve issues in a network or evaluate network performance or conditions. The session record enables analysis in the units of session instead of individual packets. Hence, the network monitoring system can analyze events, issues or performance of the network more efficiently and effectively.

US Patent:

20160028597, Jan 28, 2016

Filed:

Oct 6, 2015

Appl. No.:

14/876725

Inventors:

- Westford MA, US
Bruce A. Kelley - Westford MA, US
Rajeev Nadkarni - Chelmsford MA, US
Narendra Byrapuram - Lowell MA, US
Abhishek Saraswati - Santa Clara CA, US
Ashwani Singhal - Andover MA, US

International Classification:

H04L 12/26
H04L 29/06
H04L 12/24

Abstract:

A network monitoring system that summarizes a plurality of data packets of a session into a compact session record for storage and processing. Each session record may be produced in real-time and made available during the session and/or after the termination of the session. Depending on protocols, a network monitoring system extracts different sets of information, removes redundant information from the plurality of data packets, and adds performance information to produce the session record. The network monitoring system may retrieve and process a single session record or multiple session records for the same or different protocols to determine cause of events, resolve issues in a network or evaluate network performance or conditions. The session record enables analysis in the units of session instead of individual packets. Hence, the network monitoring system can analyze events, issues or performance of the network more efficiently and effectively.