Patents by Inventor William HOXWORTH

William HOXWORTH 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: 12160443
    Abstract: FlowSpec is a mechanism for distributing rules to routers in a network. Such rules may be used, for example, to drop traffic associated with a distributed denial of service attack. However, a malformed or incorrect FlowSpec announcement may, if distributed in the network, cause legitimate traffic to be dropped, degrading the service experienced by legitimate users. As such, systems and methods for avoiding the distribution of malformed FlowSpec announcements are provided.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: December 3, 2024
    Assignee: Level 3 Communications, LLC
    Inventors: Michael Feldpusch, Christian Jensen, Lisa Harenski, William Hoxworth
  • Publication number: 20240146576
    Abstract: One or more encapsulation tunnel aggregator devices are distributed across a provider's network. The tunnel aggregator device(s) may receive clean return traffic from a managed security router (MSR) and route the traffic to a customer endpoint via an encapsulation tunnel, thereby reducing the routing burden on the MSR. The tunnel aggregator device(s) may be deployed in physical or logical proximity to an MSR, which may facilitate the routing of return traffic from the MSR to the tunnel aggregator device(s), for ultimate transmission to a customer endpoint. In other examples, a tunnel aggregator device may be deployed in proximity to other provider network resources, such as a provider edge router.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Applicant: Level 3 Communications, LLC
    Inventors: Michael FELDPUSCH, William HOXWORTH
  • Publication number: 20230113446
    Abstract: FlowSpec is a mechanism for distributing rules to routers in a network. Such rules may be used, for example, to drop traffic associated with a distributed denial of service attack. However, a malformed or incorrect FlowSpec announcement may, if distributed in the network, cause legitimate traffic to be dropped, degrading the service experienced by legitimate users. As such, systems and methods for avoiding the distribution of malformed FlowSpec announcements are provided.
    Type: Application
    Filed: August 9, 2022
    Publication date: April 13, 2023
    Applicant: Level 3 Communications, LLC
    Inventors: Michael FELDPUSCH, Christian JENSEN, Lisa HARENSKI, William HOXWORTH