Patents by Inventor Ashkan Nikravesh

Ashkan Nikravesh 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).

  • Network testing using a programmable packet engine
    Patent number: 11595289
    Abstract: Embodiments described herein describe a network tester that is configured to perform packet modification at an egress pipeline of a programmable packet engine. A packet stream is received at an egress pipeline of an output port of the programmable packet engine, wherein the output port includes a packet modifier. Packets of the packet stream are modified at the packet modifier. The packet stream including modified packets is transmitted through an egress pipeline of the output port.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: February 28, 2023
    Assignee: Barefoot Networks, Inc.
    Inventors: Jeongkeun Lee, Georgios Nikolaidis, Andre Lam, Remy Chang, Joon-Myung Kang, Ashkan Nikravesh, Ramkumar Krishnamoorthy, Alain Loge
  • NETWORK TESTING USING A PROGRAMMABLE PACKET ENGINE
    Publication number: 20200313999
    Abstract: Embodiments described herein describe a network tester that is configured to perform packet modification at an egress pipeline of a programmable packet engine. A packet stream is received at an egress pipeline of an output port of the programmable packet engine, wherein the output port includes a packet modifier. Packets of the packet stream are modified at the packet modifier. The packet stream including modified packets is transmitted through an egress pipeline of the output port.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Jeongkeun LEE, Georgios NIKOLAIDIS, Andre LAM, Remy CHANG, Joon-Myung KANG, Ashkan NIKRAVESH, Ramkumar KRISHNAMOORTHY, Alain LOGE
  • Anycast-based spoofed traffic detection and mitigation
    Patent number: 10326794
    Abstract: Systems and methods for detecting spoofed traffic include determining a first hop count of a first data query from a first transmitting device to a first server, determining a second hop count of a second data query from the first transmitting device to a second server, determining a third hop count of a third data query appearing to be from the first transmitting device to the first server, and determining a fourth hop count of a fourth data query appearing to be from the first transmitting device to the second server. The third and fourth hop counts are compared to the first and second hop counts, respectively. It is determined whether the third hop count differs from the first hop count by more than a predetermined amount.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 18, 2019
    Assignee: VERISIGN, INC.
    Inventors: Ashkan Nikravesh, Matthew Thomas, Danny McPherson, Eric Osterweil, Gautam Gudavalli, Tomofumi Okubo
  • ANYCAST-BASED SPOOFED TRAFFIC DETECTION AND MITIGATION
    Publication number: 20180176248
    Abstract: Systems and methods for detecting spoofed traffic include determining a first hop count of a first data query from a first transmitting device to a first server, determining a second hop count of a second data query from the first transmitting device to a second server, determining a third hop count of a third data query appearing to be from the first transmitting device to the first server, and determining a fourth hop count of a fourth data query appearing to be from the first transmitting device to the second server. The third and fourth hop counts are compared to the first and second hop counts, respectively. It is determined whether the third hop count differs from the first hop count by more than a predetermined amount.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 21, 2018
    Inventors: Ashkan Nikravesh, Matthew Thomas, Danny McPherson, Eric Osterweil, Gautam Gudavalli, Tomofumi Okubo