Patents by Inventor Raja Janardanan

Raja Janardanan 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: 11902166
    Abstract: Routing of a traffic in a fabric network may be provided. A first traffic may be received at a first node. It may be determined that the first traffic is coming from a provider virtual network. In response to determining that the first traffic is coming from the provider virtual network, it may be determined that a first subnet associated with the first traffic is associated with a subscriber virtual network. In response to determining that the first subnet associated with the first traffic is associated with the subscriber virtual network, a first virtual network associated with the first traffic may be changed to the subscriber virtual network. A lookup for the first traffic may be changed to a first virtual routing and forwarding of the subscriber virtual network.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: February 13, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Raja Janardanan, Rajeev Kumar, Sanjay Kumar Hooda, Prakash C. Jain
  • Publication number: 20230308391
    Abstract: Systems, methods, and computer-readable media for communicating policy changes in a Locator/ID Separation Protocol (LISP) based network deployment include receiving, at a first routing device, a first notification from a map server, the first notification indicating a change in a policy for LISP based communication between at least a first endpoint device and at least a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device. The first routing device forwards a second notification to the second routing device if one or more entries of a first map cache implemented by the first routing device are affected by the policy change, the second notification indicating a set of one or more endpoints connected to the second routing device that are affected by the policy change.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 28, 2023
    Inventors: Prakash C. Jain, Sanjay Kumar Hooda, Satish Kondalam, Raja Janardanan, Aaditya Vadnere, Shivangi Sharma
  • Patent number: 11706139
    Abstract: Systems, methods, and computer-readable media for communicating policy changes in a Locator/ID Separation Protocol (LISP) based network deployment include receiving, at a first routing device, a first notification from a map server, the first notification indicating a change in a policy for LISP based communication between at least a first endpoint device and at least a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device. The first routing device forwards a second notification to the second routing device if one or more entries of a first map cache implemented by the first routing device are affected by the policy change, the second notification indicating a set of one or more endpoints connected to the second routing device that are affected by the policy change.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: July 18, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Prakash C. Jain, Sanjay Kumar Hooda, Satish Kondalam, Raja Janardanan, Aaditya Vadnere, Shivangi Sharma
  • Patent number: 11706303
    Abstract: The present disclosure provides systems, methods and computer-readable media for maintaining network connectivity, in a LISP based network, when one or more network edge nodes lose connectivity to a LISP control plane of the network, using multicast messaging. In one example, a method includes receiving a connection request from a first endpoint to a second endpoint communicatively coupled to a second edge node; determining, by the first edge node, that a connection session to a control plane for locating the second endpoint has failed; querying one or more available edge nodes for locating the second endpoint using a multicast message; locating the second endpoint based on at least one query response received from the one or more available edge nodes, at least one query response including an identifier of the second endpoint; and establishing the connection request between the first endpoint and the second endpoint upon locating the second endpoint.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: July 18, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Raja Janardanan, Sanjay Kumar Hooda, Victor Manuel Moreno
  • Publication number: 20220345531
    Abstract: The present disclosure provides systems, methods and computer-readable media for maintaining network connectivity, in a LISP based network, when one or more network edge nodes lose connectivity to a LISP control plane of the network, using multicast messaging. In one example, a method includes receiving a connection request from a first endpoint to a second endpoint communicatively coupled to a second edge node; determining, by the first edge node, that a connection session to a control plane for locating the second endpoint has failed; querying one or more available edge nodes for locating the second endpoint using a multicast message; locating the second endpoint based on at least one query response received from the one or more available edge nodes, at least one query response including an identifier of the second endpoint; and establishing the connection request between the first endpoint and the second endpoint upon locating the second endpoint.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Raja Janardanan, Sanjay Kumar Hooda, Victor Manuel Moreno
  • Publication number: 20220045956
    Abstract: Routing of a traffic in a fabric network may be provided. A first traffic may be received at a first node. It may be determined that the first traffic is coming from a provider virtual network. In response to determining that the first traffic is coming from the provider virtual network, it may be determined that a first subnet associated with the first traffic is associated with a subscriber virtual network. In response to determining that the first subnet associated with the first traffic is associated with the subscriber virtual network, a first virtual network associated with the first traffic may be changed to the subscriber virtual network. A lookup for the first traffic may be changed to a first virtual routing and forwarding of the subscriber virtual network.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 10, 2022
    Applicant: Cisco Technology, Inc.
    Inventors: Raja JANARDANAN, Rajeev KUMAR, Sanjay Kumar HOODA, Prakash C. JAIN
  • Publication number: 20220006738
    Abstract: Systems, methods, and computer-readable media for communicating policy changes in a Locator/ID Separation Protocol (LISP) based network deployment include receiving, at a first routing device, a first notification from a map server, the first notification indicating a change in a policy for LISP based communication between at least a first endpoint device and at least a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device. The first routing device forwards a second notification to the second routing device if one or more entries of a first map cache implemented by the first routing device are affected by the policy change, the second notification indicating a set of one or more endpoints connected to the second routing device that are affected by the policy change.
    Type: Application
    Filed: September 15, 2021
    Publication date: January 6, 2022
    Inventors: Prakash C. Jain, Sanjay Kumar Hooda, Satish Kondalam, Raja Janardanan, Aaditya Vadnere, Shivangi Sharma
  • Publication number: 20210344595
    Abstract: Systems, methods, and computer-readable media for communicating policy changes in a Locator/ID Separation Protocol (LISP) based network deployment include receiving, at a first routing device, a first notification from a map server, the first notification indicating a change in a policy for LISP based communication between at least a first endpoint device and at least a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device. The first routing device forwards a second notification to the second routing device if one or more entries of a first map cache implemented by the first routing device are affected by the policy change, the second notification indicating a set of one or more endpoints connected to the second routing device that are affected by the policy change.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 4, 2021
    Inventors: Prakash C. Jain, Sanjay Kumar Hooda, Satish Kondalam, Raja Janardanan, Aaditya Vadnere, Shivangi Sharma
  • Patent number: 11165702
    Abstract: Systems, methods, and computer-readable media for communicating policy changes in a Locator/ID Separation Protocol (LISP) based network deployment include receiving, at a first routing device, a first notification from a map server, the first notification indicating a change in a policy for LISP based communication between at least a first endpoint device and at least a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device. The first routing device forwards a second notification to the second routing device if one or more entries of a first map cache implemented by the first routing device are affected by the policy change, the second notification indicating a set of one or more endpoints connected to the second routing device that are affected by the policy change.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: November 2, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Prakash C. Jain, Sanjay Kumar Hooda, Satish Kondalam, Raja Janardanan, Aaditya Vadnere, Shivangi Sharma