Patents by Inventor Praveen Tammana

Praveen Tammana 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: 11411803
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults. The identified set of policy objects are correlated with various logs of the network. Based on the correlation, specific policy objects of the set of policy objects that are associated with physical-level causes of the fault.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 9, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella
  • Patent number: 11258657
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 22, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella
  • Publication number: 20210021457
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults. The identified set of policy objects are correlated with various logs of the network. Based on the correlation, specific policy objects of the set of policy objects that are associated with physical-level causes of the fault.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 21, 2021
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella
  • Patent number: 10812318
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults. The identified set of policy objects are correlated with various logs of the network. Based on the correlation, specific policy objects of the set of policy objects that are associated with physical-level causes of the fault.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: October 20, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella
  • Publication number: 20200228395
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults.
    Type: Application
    Filed: March 25, 2020
    Publication date: July 16, 2020
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella
  • Publication number: 20180351788
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults.
    Type: Application
    Filed: September 28, 2017
    Publication date: December 6, 2018
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella
  • Publication number: 20180351782
    Abstract: Systems, methods, and computer-readable media for localizing faults in a network policy are disclosed. In some examples, a system or method can obtain TCAM rules across a network and use the TCAM rules to perform an equivalency check between the logical model and the hardware model of the network policy. One or more risk models are annotated with output from the equivalency check and the risk models are used to identify a set of policy objects of the network policy that are likely responsible for the faults. The identified set of policy objects are correlated with various logs of the network. Based on the correlation, specific policy objects of the set of policy objects that are associated with physical-level causes of the fault.
    Type: Application
    Filed: September 28, 2017
    Publication date: December 6, 2018
    Inventors: Praveen Tammana, Chandra Nagarajan, Pavan Mamillapalli, Ramana Rao Kompella