Patents by Inventor Nathan Allen Mitchell

Nathan Allen Mitchell 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).

  • PBB-EVPN customer MAC synchronization among all-active multi-homing PEs
    Patent number: 10158567
    Abstract: A method for assisting media access control (MAC) address learning is disclosed. The method includes receiving, at a first provider edge (PE) device, a data packet from a core network, the data packet identifying an Ethernet Segment (ES) from which the data packet originated and identifying a first MAC address as the destination MAC address; determining, at the first PE device, whether the first PE device has an Ethernet connection in the ES identified by the data packet and whether the first PE device has learned the first MAC address; and, upon positive determination, sending an announcement message to the core network, the announcement message identifying the first MAC address.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 18, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Mei Zhang, Yushun Zhang, Ali Sajassi, Thomas Eric Ryle, Richard Thomas Wood, Nathan Allen Mitchell
  • Ethernet segment aware MAC address learning
    Patent number: 10033636
    Abstract: A computer-implemented method for assisting Ethernet Segment (ES)-aware media access control (MAC) address learning is disclosed. The method includes receiving, at a provider edge (PE) device, a data packet from a core network, the data packet identifying an ES from which the data packet originated and identifying a MAC address as a source MAC address; determining whether the PE device has an Ethernet connection in the ES identified by the data packet; and, upon positive determination, associating the MAC address identified as the source MAC address of the data packet to a bridge port, at the PE device, of the Ethernet connection in the ES identified by the data packet.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: July 24, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Mei Zhang, Yushun Zhang, Ali Sajassi, Thomas Eric Ryle, Richard Thomas Wood, Nathan Allen Mitchell
  • Controlling a transmission rate of packet traffic
    Patent number: 7889659
    Abstract: Controlling a transmission rate of packet traffic includes receiving packets from a network processor. The packets are stored in a buffer associated with a processor. If an occupancy level of the buffer is greater than a predetermined threshold, it is determined that the processor is congested. A message is transmitted to the network processor indicating the processor is congested.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: February 15, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Rafael Mantilla Montalvo, Jorge Manuel Gonzalez, Nathan Allen Mitchell, Timothy F. Masterson, Stephen Charles Hilla, Karen A. Szypulski
  • Controlling a Transmission Rate of Packet Traffic
    Publication number: 20080253284
    Abstract: Controlling a transmission rate of packet traffic includes receiving packets from a network processor. The packets are stored in a buffer associated with a processor. If an occupancy level of the buffer is greater than a predetermined threshold, it is determined that the processor is congested. A message is transmitted to the network processor indicating the processor is congested.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Applicant: Cisco Technology, Inc.
    Inventors: Rafael Mantilla Montalvo, Jorge Manuel Gonzalez, Nathan Allen Mitchell, Timothy F. Masterson, Stephen Charles Hilla, Karen A. Szypulski