Patents by Inventor Sandesh Kumar B. Narappa

Sandesh Kumar B. Narappa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9838314
    Abstract: In one embodiment, contextual service mobility in an enterprise fabric network environment (e.g., overlay and underlay networks) provides for moving of the location of a service being applied to packets with minimal updates to the mapping database. The mapping database is used to convert addresses of the overlay network to physical network and service addresses. The mapping database provides contextual lookup operations on the same destination address of a packet being forwarded in the overlay network to provide different results. The contextual lookup operations provide for a packet to be forwarded to a service node or its intended destination depending on the current context. In one embodiment, the enterprise fabric network uses Locator/ID Separation Protocol (LISP), a network architecture and set of protocols that uses different overlay and underlay namespaces and a distributed mapping database for converting an overlay address to an underlay address.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: December 5, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Sanjay Kumar Hooda, Atri Indiresan, Sandesh Kumar B Narappa, Rajesh Arora
  • Publication number: 20170331733
    Abstract: In one embodiment, contextual service mobility in an enterprise fabric network environment (e.g., overlay and underlay networks) provides for moving of the location of a service being applied to packets with minimal updates to the mapping database. The mapping database is used to convert addresses of the overlay network to physical network and service addresses. The mapping database provides contextual lookup operations on the same destination address of a packet being forwarded in the overlay network to provide different results. The contextual lookup operations provide for a packet to be forwarded to a service node or its intended destination depending on the current context. In one embodiment, the enterprise fabric network uses Locator/ID Separation Protocol (LISP), a network architecture and set of protocols that uses different overlay and underlay namespaces and a distributed mapping database for converting an overlay address to an underlay address.
    Type: Application
    Filed: May 16, 2016
    Publication date: November 16, 2017
    Applicant: Cisco Technology, Inc.
    Inventors: Sanjay Kumar Hooda, Atri Indiresan, Sandesh Kumar B Narappa, Rajesh Arora
  • Patent number: 9380005
    Abstract: In one embodiment, a device receives a first packet stream and a second packet stream over different paths through a network, wherein each of said sent first and the second packet streams includes a same replicated stream of packets. The apparatus processes packets of the first packet stream when the first packet stream is in an active packet stream, and while buffering and subsequently dropping packets of the second packet stream when the second packet stream is in a non-active state. In response to identifying a difference in a number of packets in the same replicated stream of packets received in the second packet stream compared to in the first packet stream equaling or exceeding a predetermined threshold, the second packet stream becomes in the active state and missing packets are forwarded from the buffered second stream packets.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 28, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Khalil A. Jabr, Naveen Kumar R (Ramalingappa), Sandesh Kumar B Narappa, Sudhakar Shenoy
  • Publication number: 20130114593
    Abstract: In one embodiment, a device receives a first packet stream and a second packet stream over different paths through a network, wherein each of said sent first and the second packet streams includes a same replicated stream of packets. The apparatus processes packets of the first packet stream when the first packet stream is in an active packet stream, and while buffering and subsequently dropping packets of the second packet stream when the second packet stream is in a non-active state. In response to identifying a difference in a number of packets in the same replicated stream of packets received in the second packet stream compared to in the first packet stream equaling or exceeding a predetermined threshold, the second packet stream becomes in the active state and missing packets are forwarded from the buffered second stream packets.
    Type: Application
    Filed: December 19, 2011
    Publication date: May 9, 2013
    Applicant: Cisco Technology, Inc., a corporation of California
    Inventors: Khalil A. Jabr, Naveen Kumar R (Ramalingappa), Sandesh Kumar B. Narappa, Sudhakar Shenoy