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Sunil U Khaunte

from Sunnyvale, CA
Age ~51

Sunil Khaunte Phones & Addresses

  • 743 Nutmeg Ave, Sunnyvale, CA 94087 (408) 830-9830
  • 718 Old San Francisco Rd, Sunnyvale, CA 94086 (408) 736-6431
  • 718 Old San Francisco Rd #357, Sunnyvale, CA 94086 (408) 736-6431
  • Los Altos, CA
  • 711 Borello Way, Mountain View, CA 94041 (650) 960-5744
  • 3700 Lillick Dr, Santa Clara, CA 95051 (408) 248-6512
  • Atlanta, GA

Resumes

Resumes

Sunil Khaunte Photo 1

Software Engineering Director - Infrastructure

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Location:
Sunnyvale, CA
Industry:
Internet
Work:
Cisco Systems - San Jose, CA since Jul 2012
Director of Engineering

CISCO - San Jose, CA Jan 2008 - Jun 2012
Sr. Software Development Manager

Cisco Systems - San Jose, CA Apr 2006 - Jan 2008
Software Development Manager

Cisco Aug 2004 - Apr 2006
Technical Lead
Education:
Georgia Institute of Technology 1995 - 1997
MS, Electrical Engineering
Goa University 1990 - 1994
BE, Electronics and Telecommunications
Skills:
Software Development
Routing Infrastructure
Distributed Systems
Embedded Systems
Forwarding
Data Center Infrastructure
Cloud Computing
Tcp/Ip
Cisco Technologies
Ethernet
Product Development
Ipv6
Ip
Perl
Linux Kernel
Device Drivers
Routing Protocols
Virtualization
Qos
C
Routers
Networking
Operating Systems
Routing
Ip Networking
Tcl
Languages:
English
Hindi
Marathi
Konkani
Sunil Khaunte Photo 2

Sunil Khaunte

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Publications

Us Patents

Media Access Layer Ping Protocol For Diagnosing Cable Modem Links

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US Patent:
6594305, Jul 15, 2003
Filed:
Jun 23, 1999
Appl. No.:
09/339067
Inventors:
Guenter E. Roeck - San Jose CA
Sunil Khaunte - Santa Clara CA
Mark E. Millet - Mountain View CA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04B 138
US Classification:
375222, 370245, 370450, 725111
Abstract:
Methods, apparatus, and computer-readable media are disclosed for performing diagnostic tests of a communication link between a headend and a cable modem without having to assign an IP address to the cable modem. The diagnostic tests are performed at the MAC layer and test the state of the hardware between and including the cable modem termination system (CMTS) and a selected cable modem. By doing so, a network operator is able to more easily focus in on a potential problem in cable RF/MAC connectivity between the two components by first eliminating (or identifying) a problem with hardware before focusing on problem-solving at the software level, typically at the Network layer, at which point the cable modem is assigned an IP address. A network command is received from a network operator causing the CMTS to place a service identifier corresponding to a cable modem in possible need of diagnosing into a poll list. The service identifier is placed in the poll list the number of times specified in the network command as the number of polls desired for the test.

Method And Apparatus For Dynamic Adjustment Of Cable Modem Back-Off Parameters In A Cable Modem Network

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US Patent:
6614799, Sep 2, 2003
Filed:
Jan 20, 1999
Appl. No.:
09/234774
Inventors:
Ajay Gummalla - Atlanta GA
Sunil Khaunte - Santa Clara CA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 1228
US Classification:
370448, 370395, 370449, 370461, 725116, 725131
Abstract:
A technique is provided for dynamically adjusting modem back-off parameters in a cable modem network. The technique is based on the theoretical result that the ratio of the number of the successful band width requests (Ns) to the number of collisions (Nc) has a value (e-31) when the back-off values are correctly estimated. The present technique for dynamically adjusting modem back-off parameters utilizes this concept to correspondingly correct the back-off parameters, depending upon the value of the Nc/Ns ratio, so as to cause this ratio to converge to the desired ratio of Nc/Ns equal to approximately 0. 7. If the ratio of Nc/Ns is greater than a first specified value, the back-off start and backoff-end parameters (broadcast by the CMTS to cable modems on the downstream channel) are increased. If the ratio of Nc/Ns is less than a second specified value, the back-off start and backoff-end parameters are decreased. The present technique provides for improved access delay and improved throughput performance in contention sub-channels of cable access networks, particularly those involving large round trip delays.

Method And Apparatus For Mapping Voice Activity Detection To A Scheduled Access Media

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US Patent:
6621812, Sep 16, 2003
Filed:
Jan 4, 1999
Appl. No.:
09/225895
Inventors:
John T. Chapman - Cupertino CA
Guenter Roeck - San Jose CA
Sunil Khaunte - Santa Clara CA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04J 316
US Classification:
370346, 370356, 370443, 370449
Abstract:
Unsolicited grants are allocated a selected time interval for scheduling transmission of audio packets at a network endpoint. A network processing node switches from outputting unsolicited grants to polling for packet transmission requests when Voice Activity Detection (VAD) at the transmitting endpoint stops generating audio packets. The network processing node switches back to outputting unsolicited grants when the endpoint resumes generation of audio packets. The unsolicited grants include one or more additional grants within the selected time interval that flush out one or more audio packets that may already be queued for transmitting. These additional grants reduce the latency normally caused when Voice Activity Detection (VAD) stops and then restarts audio packet transmission.

Technique For Dynamically Adjusting Lookahead Time For Channel Map Messages To Achieve Optimal Packet Performance Over An Access Network

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US Patent:
6956865, Oct 18, 2005
Filed:
Jan 7, 2000
Appl. No.:
09/479433
Inventors:
Sunil Khaunte - Santa Clara CA, US
Guenter Roeck - San Jose CA, US
Chrisanto Leano - San Jose CA, US
Son Nguyen - San Jose CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04B007/212
US Classification:
370442, 370508, 370345
Abstract:
A technique is described for improving packet performance in an access network. The access network comprises a Head End and a plurality of nodes. The access network further includes at least one shared-access upstream channel used by the first plurality of nodes to communicate with the Head End. Propagation delay data associated with at least a portion of the plurality of nodes using the at least one upstream channel is obtained. The propagation delay data is then used to dynamically adjust the lookahead time value associated with the generating of MAP messages for the at least one upstream channel.

Method And Apparatus For Creating Virtual Upstream Channels For Enhanced Lookahead Channel Parameter Testing

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US Patent:
7039939, May 2, 2006
Filed:
May 9, 2000
Appl. No.:
09/568795
Inventors:
Mark E. Millet - Mountain View CA, US
Chrisanto Leano - San Jose CA, US
Sunil Khaunte - Santa Clara CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04N 7/173
US Classification:
725111, 725116, 725118, 725120, 725121
Abstract:
Methods, apparatus, and computer-readable media are disclosed for creating a virtual lookahead upstream receiver in a single physical upstream receiver in a CMTS, thereby avoiding having to dedicate an upstream receiver strictly for lookahead capability. A lookahead receiver is used to determine whether a potential alternative frequency is better than the frequency presently being used. A physical upstream receiver is assigned to operate under a set of operational parameters associated with a logical lookahead receiver during a particular time slot. The logical receiver receives upstream data from a selected test modem using an alternative upstream frequency. It is then determined whether the alternative upstream frequency is preferable over the frequency presently being used. If so, the physical receiver is configured to operate normally under the set of operational parameters associated with the logical receiver. At this stage, all modems in a particular group, including the selected modem, hop over to the alternative frequency.

Method And Apparatus For Mapping An Mpls Tag To A Data Packet In A Headend

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US Patent:
7092397, Aug 15, 2006
Filed:
Aug 31, 2001
Appl. No.:
09/945298
Inventors:
Kartik Chandran - Mountain View CA, US
Chrisanto Leano - San Jose CA, US
Sunil Khaunte - Santa Clara CA, US
Jerry D. Goodrich - York ME, US
Kelly Schaefer - Leesburg VA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
H04L 12/56
H04J 3/12
H04N 7/173
US Classification:
3703955, 370522, 725111, 709228
Abstract:
A method of using DOCSIS 1. 1 features to allow the addition of ISPs and QOS levels to a single cable modem without having to modify the CMTS is described in the various figures. Instead of using the SID of a data packet to determine the VPN tag of a data packet (DOCSIS 1. 0), a service flow is used to identify the appropriate tag. This is done using the DOCSIS 1. 1 configuration file. By doing so, the need for creating additional sub-interfaces in the cable modem interface does not arise. Instead, the configuration is modified at the provisioning server, i. e. , the DHCP/TFTP server.

Media Access Layer Ping Protocol For Diagnosing Cable Modem Links

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US Patent:
7227889, Jun 5, 2007
Filed:
Apr 24, 2003
Appl. No.:
10/422613
Inventors:
Guenter E. Roeck - San Jose CA, US
Sunil Khaunte - Santa Clara CA, US
Mark E. Millet - Mountain View CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04B 1/38
US Classification:
375222, 370245, 370450, 725111
Abstract:
Methods, apparatus, and computer-readable media are disclosed for performing diagnostic tests of a communication link between a headend and a cable modem without having to assign an IP address to the cable modem. The diagnostic tests are performed at the MAC layer and test the state of the hardware between and including the cable modem termination system (CMTS) and a selected cable modem. By doing so, a network operator is able to more easily focus in on a potential problem in cable RF/MAC connectivity between the two components by first eliminating (or identifying) a problem with hardware before focusing on problem-solving at the software level, typically at the Network layer, at which point the cable modem is assigned an IP address.

Network Traffic Shaping Using Time-Based Queues

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US Patent:
7392279, Jun 24, 2008
Filed:
Mar 26, 1999
Appl. No.:
09/276917
Inventors:
Kartik S. Chandran - Sunnyvale CA, US
Guenter Roeck - San Jose CA, US
Sunil Khaunte - Santa Clara CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
G06F 15/16
US Classification:
709200, 3702301, 370235, 3703954, 370412, 719314, 718102
Abstract:
A time-based buffering system buffers data based upon how long the data should be held in order to comply with a traffic shaping policy. The data's source or destination need not be considered in determining where to buffer the data. The time-based buffering system includes a collection of time-based queues, each of which has a different time to dequeue. The system controlling traffic shaping determines how long a particular piece of data should be buffered (a “traffic shaping delay”) until it can be put on the network. Then, based upon that length of time, the system chooses one of the time-based of queues in which to buffer the data. That chosen queue has a dequeuing time that matches the traffic shaping delay. After the chosen queue dequeues its contents (at the specified time), it assumes a new dequeing time and is free to buffer new data that must be delayed by a time matching the new dequeuing time.
Sunil U Khaunte from Sunnyvale, CA, age ~51 Get Report