Patents by Inventor Jimmy Philip Ervin

Jimmy Philip Ervin 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).

  • Method and system for emulating an ethernet link over a sonet path
    Patent number: 7653526
    Abstract: A method and system for emulating an Ethernet link over a Sonet path to provide link integrity is disclosed. The method generally includes receiving an error code at a local Ethernet port upon detection of a link failure at a remote Ethernet port. The error code is received over a Sonet path in a Sonet path overhead. If the error code is still present after a specified period of time, the local Ethernet port is disabled. Methods for providing link stability and link availability are also disclosed.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: January 26, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Thomas Eric Ryle, Sanjeev Rampal, Jimmy Philip Ervin, Charles Allen Carriker, Jr., Russell Eugene Gardo
  • Load balancing mechanism for a translational bridge environment
    Patent number: 6438133
    Abstract: Mechanism for use in an internetworking device incorporating a translational bridging function to provide load balancing across multiple instances of the same destination address. Traffic originating with clients in the transparently bridged domain is distributed over multiple communication paths to the multiple instances of the destination address in the source route bridging domain. The internetworking device sends an explorer frame over each interface in the source route bridging domain to discover all parallel paths to the destination address. The internetworking device receives a response from each instance of the destination address over all possible paths. The routing information contained in the responses is used to create entries in a cache in the internetworking device. Load balancing is performed by using the source address of the transparently bridged clients as a key to select a specific path for each such client.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: August 20, 2002
    Assignee: Cisco Technology, Inc.
    Inventors: Jimmy Philip Ervin, Richard Colbert Matlack, Jr., Pramod Narottambhai Patel, Deepak Vig
  • Method for configuring distributed internet protocol gateways with LAN emulation
    Patent number: 6282201
    Abstract: A communication network having a plurality of routers, each connected to host systems by LAN networks and interconnected by a switched network uses a shared or common IP and MAC address in the routers. Host systems on the same subnet use the shared or common IP address as their default gateway address when accessing host systems on another subnet.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: August 28, 2001
    Assignee: Cisco Technology, Inc.
    Inventors: Cedell Adam Alexander, Jr., Jimmy Philip Ervin, John Lloyd, Richard Colbert Matlack, Jr., Deepak Vig
  • Method for configuring distributed internet protocol gateways with lan emulation
    Patent number: 6091732
    Abstract: A communication network having a plurality of routers, each connected to a host system by a LAN network and interconnected by a switched network, the common network using a shared or common IP and MAC address in the routers forming a subnet. Host systems on the same subnet use the shared or common IP address as their default gateway address when accessing host systems on another subnet.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: July 18, 2000
    Assignee: Cisco Systems, Inc.
    Inventors: Cedell Adam Alexander, Jr., Jimmy Philip Ervin, John Lloyd, Richard Colbert Matlack, Jr., Deepak Vig