Patents by Inventor Nagendra Kumar

Nagendra Kumar 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: 11563622
    Abstract: A method is performed by a node configured to implement an Operation, Administration, and Maintenance (OAM) protocol for rapid link failure detection. The node receives peer OAM packets sent by a peer node over a link at a peer periodic interval. While in a first mode of the OAM protocol, the node determines whether the peer node is reachable based on the peer OAM packets, sends OAM packets to the peer node at a periodic interval to indicate to the peer node that the node is reachable, and responsive to detecting a critical condition of the node that impairs the sending the OAM packets, transitions to a second mode of the OAM protocol. While in the second mode, the node adds, to the peer OAM packets, a code to indicate the critical condition, and reflects the peer OAM packets with the code back to the peer node.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: January 24, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Carlos M. Pignataro, Nagendra Kumar Nainar, Jaganbabu Rajamanickam, Madhan Sankaranarayanan, Prakash Jain
  • Patent number: 11556610
    Abstract: Examples of a content alignment system are provided. The system may receive a content record and a content creation requirement. The system may implement an artificial intelligence component to sort the content record into a plurality of objects and for identifying an object boundary for each of the plurality of objects. The system may identify a plurality of images and implement a first cognitive learning operation to identify an image boundary for each of the plurality of images. The system may identify a plurality of exhibits and implement a second cognitive learning operation to identify a data pattern associated with each of the plurality of exhibits. The system may implement a third cognitive learning operation for determining a content creation model by evaluating the plurality of objects, the plurality of images, and the plurality of exhibits. The system may generate a content creation output to resolve the content creation requirement.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: January 17, 2023
    Assignee: ACCENTURE GLOBAL SOLUTIONS LIMITED
    Inventors: Pratip Samanta, Manash Jyoti Konwar, Keshav Bohra, Himani Shukla, Nagendra Kumar Karamala, Madhura Shivaram, Amit Sharma, Sumeet Sawarkar, Swati Tata
  • Patent number: 11558130
    Abstract: An apparatus transmits a quality of experience (QoE) support message to an access point (AP) within an access network. The QoE support message queries whether the AP supports providing key performance indicators (KPI(s)) indicative of QoE provided by the access network. An indication of whether the AP supports providing the KPI(s) is received in response to the QoE support message. The KPI(s) are received when the AP supports providing the KPI(s). A determination is made whether to communicate with the AP based at least in part on the KPI(s). The apparatus performs communications in accordance with the determination.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: January 17, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Jerome Henry, Robert E. Barton, Nagendra Kumar Nainar, Carlos M. Pignataro, Bart A. Brinckman
  • Patent number: 11558295
    Abstract: The present disclosure includes methods, systems, and non-transitory computer-readable media for validating data in a data structure used for forwarding packets by a network device comprising sending a data packet probe identifying a destination and including a segment ID, wherein the segment ID maps to a first interpretation by a receiving router to perform an action on the data packet probe to rewrite a portion of a destination address in a header of the data packet probe, and to redirect the data packet probe to the network device that initiated the data packet probe.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: January 17, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Nagendra Kumar Nainar, Carlos M. Pignataro, Zafar Ali, Syed Kamran Raza
  • Publication number: 20230007050
    Abstract: Differentiated service in a federation-based access network is provided by receiving, with a request for access to a wireless network offering at least a two different service levels based on user identities, a set of user credentials from a User Equipment (UE); forwarding, for authentication, the set of user credentials to an identity provider in an identity federation with the wireless network, wherein the identity provider is independent from the wireless network; in response to determining that the set of user credentials indicate a realm known to be associated with a given service level, providing network access to the UE according to the given service level; and in response to determining that the given service level is not a highest service level in the wireless network, transmitting a list of preferred realms to the UE that are associated with higher service levels than the given service level.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 5, 2023
    Inventors: Jerome HENRY, Robert E. BARTON, Carlos M. PIGNATARO, Nagendra Kumar NAINAR, Malcolm M. SMITH, Mark GRAYSON, Bart A. BRINCKMAN
  • Publication number: 20220417205
    Abstract: The present disclosure is directed systems and methods for control embedding data packets for ARP queries, the methods including the steps of receiving a data plane packet from a first user device, the data plane packet requesting a hardware address associated with a second user device; generating a northbound control plane packet for transmission to a control plane node, the northbound control plane packet for requesting from the control plane node the hardware address associated with the second user device; embedding the data plane packet in the northbound control plane packet; and forwarding the northbound control plane packet with the data plane packet to the control plane node for respective processing of the northbound control plane packet and the data plane packet.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 29, 2022
    Inventors: Nagendra Kumar Nainar, Rahul Rammanohar, Kondaveeti Lakshmi Ganesh, Carlos M. Pignataro
  • Publication number: 20220417137
    Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.
    Type: Application
    Filed: July 8, 2022
    Publication date: December 29, 2022
    Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Refaat Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
  • Publication number: 20220417219
    Abstract: This disclosure describes using a dynamic proxy for securing communications between a source within a cloud environment and an application container. The techniques include intercepting traffic directed to an application container, analyzing the traffic and traffic patterns, and allowing or preventing the traffic from being delivered to the application container based on the analysis. A traffic analysis engine may determine whether the traffic is considered safe and is to be allowed to be delivered to the application container, or whether the traffic is considered unsafe and is to be prevented from being delivered to the application container, According to some configurations, the address(es) to the network interfaces (e.g., WIFI or Eth0) are abstracted to help ensure security of the application containers.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 29, 2022
    Inventors: Akram Sheriff, Nagendra Kumar Nainar, Arvind Tiwari, Rajiv Asati
  • Publication number: 20220417734
    Abstract: A network infrastructure component determines a risk measurement associated with a wireless client device's use of a device address, and provides an advisory with respect to an address rotation strategy of the wireless client device based on the risk measurement. In some embodiments, the risk measurement is based on one or more of an exposure, by the wireless client device, of information on the wireless network that identifies the wireless client device and/or a characterization of a security of the wireless network environment in which the wireless client device operates.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 29, 2022
    Inventors: Shankar Ramanathan, Nagendra Kumar Nainar, Robert E. Barton, Jerome Henry
  • Patent number: 11539637
    Abstract: A method of orchestrating one or more radio resources among various services executing within a container. The method includes obtaining, by an orchestration engine executing on a network device, a request, from a first service of a plurality of services, for use of a physical/hardware resource that connects a container running on the network device to a network. The request from the first service has a particular priority. The plurality of services execute within the container. The method further includes determining whether to connect the first service to the network via the physical/hardware resource based on the priority and an availability status of the physical/hardware resource and establishing, at a kernel level, a connection between the first service and the physical/hardware resource based on the determining.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: December 27, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Shankar Ramanathan, Nagendra Kumar Nainar, Carlos M. Pignataro
  • Publication number: 20220385661
    Abstract: Embodiments herein describe disconnecting, by an access node, a first device having a first media access control (MAC) address due to a network violation and receiving, by the access node, information about a second device having a second MAC address different from the first MAC address. In one embodiment, the information is generated by a certificate server based on a token generated by the second device. Further, when the access node determines, based on the information, that the second device is the first device, the access node denies a connection request from the second device.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 1, 2022
    Inventors: Carlos M. PIGNATARO, Nagendra Kumar NAINAR, Jerome HENRY, Robert E. BARTON, Bart A. BRINCKMAN
  • Patent number: 11516120
    Abstract: In one embodiment, a method is performed. A spine node in communication with a network may determine a subtree of a shadow cone of the spine node. The subtree may comprise a plurality of nodes and a plurality of links connecting pairs of the nodes. The spine node may determine a disaggregated route to a first leaf node to which a disaggregated prefix may be attached. The disaggregated route may be propagated to the plurality of the nodes of the subtree.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: November 29, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Nagendra Kumar Nainar, Carlos M. Pignataro
  • Publication number: 20220353165
    Abstract: This disclosure describes techniques for monitoring expected behavior of devices in a computing network. Behavior of network devices may include performing various functions associated with transferring data packets through the computing network. Monitoring expected behavior may include sending a probe packet into the computing network, and determining whether network devices behave as expected with respect to the probe packet. In some examples, behaviors such as replicating, forwarding, eliminating, ordering, and/or other functions regarding data packets may be validated using the present techniques. As computing networks and/or operations become more complex, assuring the expected behavior of network devices may become more important for the continued efficient, smooth, successful, and/or timely flow of data traffic.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Inventors: Nagendra Kumar Nainar, Carlos M. Pignataro, Pascal Thubert
  • Patent number: 11483238
    Abstract: This disclosure describes techniques for implementing centralized path computation for routing in hybrid information-centric networking protocols implemented as a virtual network overlay. A method includes receiving an interest packet header from a forwarding router node of a network overlay. The method further includes determining an interest path of the interest packet and one or more destination router nodes of the network overlay. The method further includes computing one or more paths over the network overlay. The method further includes determining an addressing method for the one or more computed paths over the network overlay. The method further includes performing at least one of encoding each computed path in a data packet header, and encoding each computed path as state entries of each router node of the network overlay on each respective path. The method further includes returning the computed path information to the forwarding router node.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: October 25, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Nagendra Kumar Nainar, Carlos M. Pignataro, Luca Muscariello
  • Publication number: 20220337629
    Abstract: A method includes receiving, at an access node of a local network, a connection request from a device and in response to the connection request, establishing a connection with an identity provider. The device, the access node, the local network, and the identity provider are members of an identity federation. The method further includes receiving an indication that the device previously violated a network policy of a network different from the local network and after the device is authenticated with the identity provider, determining, by the access node and based on the indication, whether to allow the device to communicate over the access node.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 20, 2022
    Inventors: Robert E. BARTON, Bart A. BRINCKMAN, Jerome HENRY, Carlos M. PIGNATARO, Nagendra Kumar NAINAR, Matthew MACPHERSON
  • Publication number: 20220330052
    Abstract: Failure prediction signaling and cognitive user migration may be provided. A client device may receive at least a portion of failure prediction data. The client device may then analyze the at least the portion of the failure prediction data. The client device may then roam from a first computing device to a second computing device in response to analyzing the at least the portion of the failure prediction data.
    Type: Application
    Filed: April 8, 2021
    Publication date: October 13, 2022
    Applicant: Cisco Technology, Inc.
    Inventors: Nagendra Kumar Nainar, Carlos M. Pignataro, Jerome Henry, Robert E. Barton
  • Publication number: 20220329523
    Abstract: Presented herein are methods and systems that facilitate data plane signaling of a packet as a candidate for capture at various network nodes within an IPv6 network. The signaling occurs in-band, via the data plane—that is, a capture or interrogation signal is embedded within the respective packet (e.g., in the packet header) that carries a user traffic. The signaling is inserted, preferably when the packet is classified, e.g., at the ingress node of the network, to which subsequent network nodes with the IPv6 network are signaled to capture or further inspect the packet for capture.
    Type: Application
    Filed: April 25, 2022
    Publication date: October 13, 2022
    Inventors: Carlos Pignataro, Richard Furr, Nagendra Kumar Nainar, Joseph Michael Clarke
  • Patent number: 11470021
    Abstract: Techniques for providing a non-blocking fabric in a network are described. A network controller determines the network requirement for various network traffic types on the network and determines the allocation of resources across the network needed to establish a midlay, including midlay components on the network. The network controller then establishes the midlay on the network according to the determined allocation. At least one of the midlay components is a virtually non-blocking fabric for high-priority traffic or fully non-blocking fabric for deterministic traffic.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: October 11, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric M. Levy-Abegnoli, Nagendra Kumar Nainar
  • Publication number: 20220321449
    Abstract: A network device receives a data packet including a source address and a destination address. The network device drops the data packet before it reaches the destination address and generates an error message indicating that the data packet has been dropped. The network device encapsulates the error message with a segment routing header comprising a list of segments. The first segment of the list of segments in the segment routing header identifies a remote server, and at least one additional segment is an instruction for handling the error message. The network device sends the encapsulated error message to the remote server based on the first segment of the segment routing header.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 6, 2022
    Inventors: Nagendra Kumar Nainar, Carlos M. Pignataro, Joseph Michael Clarke
  • Patent number: 11463326
    Abstract: According to one or more embodiments of the disclosure, a particular networking device located in a ring of networking devices of a network receives an indication from a supervisory service that the particular networking device has been designated a ring manager for the ring of networking devices. The particular networking device determines that the supervisory service is unreachable by the ring of networking devices. The particular networking device obtains telemetry data regarding a new device connected to the ring of networking devices. The particular networking device onboards, based on the telemetry data, the new device to the network, when the supervisory service is unreachable by the ring of networking devices.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: October 4, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Vinay Saini, Nagendra Kumar Nainar, Hazim Hashim Dahir, Carlos M. Pignataro, Rajesh Indira Viswambharan