Patents by Inventor Robert J. Shearman

Robert J. Shearman 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).

  • Different forwarding of packets based on whether received from a core or customer network
    Patent number: 9729432
    Abstract: In one embodiment, a provider edge packet switching device of a provider network is configured with different Internet Protocol (IP) forwarding information bases (FIBs) depending on whether the forwarding information base is associated with core-facing ingress packet traffic (e.g., packet traffic from the provider network) or customer-facing ingress packet traffic (e.g., packet traffic from a customer network). In the latter case of customer-facing ingress packet traffic, the customer-facing forwarding information base includes load balancing lookup results for load balancing traffic between a customer edge packet switching device and through the provider network. In the case of core-facing ingress packet traffic, the core-facing forwarding information base includes a lookup result for forwarding traffic to a customer edge packet switching device, and does not include the above-referenced load balancing lookup result information.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: August 8, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Robert J. Shearman, Neale David Raymond Ranns, Crispin Nicholas Dent-Young, Alan J. Cheilek
  • Different Forwarding of Packets Based on Whether Received from a Core or Customer Network
    Publication number: 20170149657
    Abstract: In one embodiment, a provider edge packet switching device of a provider network is configured with different Internet Protocol (IP) forwarding information bases (FIBs) depending on whether the forwarding information base is associated with core-facing ingress packet traffic (e.g., packet traffic from the provider network) or customer-facing ingress packet traffic (e.g., packet traffic from a customer network). In the latter case of customer-facing ingress packet traffic, the customer-facing forwarding information base includes load balancing lookup results for load balancing traffic between a customer edge packet switching device and through the provider network. In the case of core-facing ingress packet traffic, the core-facing forwarding information base includes a lookup result for forwarding traffic to a customer edge packet switching device, and does not include the above-referenced load balancing lookup result information.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 25, 2017
    Applicant: Cisco Technology, Inc., a corporation of California
    Inventors: Robert J. Shearman, Neale David Raymond Ranns, Crispin Nicholas Dent-Young, Alan J. Cheilek