Patents by Inventor Matthew T. Knudstrup

Matthew T. Knudstrup 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).

  • Look up table (LUT) for Point-to-Point Protocol identification (PPP ID)
    Patent number: 7944942
    Abstract: A Point-to-Point Protocol (PPP) identifier (PPP ID) value of a PPP frame, including data, is converted to an associated Ethernet Virtual Local Area Network (VLAN) tag identifier (ID) value to enable the PPP ID value information to be communicated in an Ethernet frame to the next transmission layer for use in routing the data from the PPP frame.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: May 17, 2011
    Assignee: Extreme Networks, Inc.
    Inventors: Daniel J. Cimino, Stephen R. Haddock, Matthew T. Knudstrup
  • Look up table (LUT) for point-to-point protocol identification (PPP ID)
    Patent number: 7400647
    Abstract: A Point-to-Point Protocol (PPP) identifier (PPP ID) value of a PPP frame, including data, is converted to an associated Ethernet Virtual Local Area Network (VLAN) tag identifier (ID) value to enable the PPP ID value information to be communicated in an Ethernet frame to the next transmission layer for use in routing the data from the PPP frame.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: July 15, 2008
    Assignee: Extreme Networks
    Inventors: Daniel J. Cimino, Stephen R. Haddock, Matthew T. Knudstrup
  • Virtual load balancing across a network link
    Patent number: 7372813
    Abstract: Information is directed across the same corresponding virtual channels in both a first network switch and a second network switch. As a result, any congestion in the second network switch results only in packet dropping associated with the particular congested virtual channel. However, information continues to move across the remaining uncongested virtual channels. As a result, even if congestion occurs in the second network switch, information continues to flow across the single network link between the first and second network switches, i.e., the single network link is not shut down.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: May 13, 2008
    Assignee: Extreme Networks
    Inventors: Daniel J. Cimino, Stephen R. Haddock, Matthew T. Knudstrup
  • Network interconnect device and protocol for communicating data among packet forwarding devices
    Patent number: 6023471
    Abstract: A network interconnect device and message exchange protocol for forwarding data among packet forwarding devices are provided. According to one aspect of the present invention, data is forwarded between a first and second packet forwarding device coupled to an interconnect device. The interconnect device receives a menu message from the first packet forwarding device that indicates one or more types of data that are awaiting transmission on the first packet forwarding device. Based upon the menu message, the interconnect device transmits an order message selecting a type of data of the one or more types of data awaiting transmission to the first packet forwarding device. The interconnect device receives a message from the first packet forwarding device containing data of the type selected by the order message. The interconnect device then forwards the data to the second packet forwarding device.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: February 8, 2000
    Assignee: Extreme Networks
    Inventors: Stephen R. Haddock, Herb Schneider, Curt Berg, Daniel J. Cimino, Siddharth Khattar, Matthew T. Knudstrup, Mark Thomas Lytwyn, Aaron C. Tyler, Michael Yip
  • Protocol for communicating data between packet forwarding devices via an intermediate network interconnect device
    Patent number: 5974467
    Abstract: A message exchange protocol for interconnecting packet forwarding devices through an intermediate network interconnect device is provided. According to one aspect of the present invention, a method is provided for communicating data between packet forwarding devices. The presence of an interconnect device that is coupled between a first packet forwarding device and a second packet forwarding device is detected by recognizing a configuration sequence, for example. After the link between the interconnect device and the first packet forwarding device is established, the first packet forwarding device receives a command from the interconnect device requesting the types of data that are pending on the first packet forwarding device. Responsive to the command, the first packet forwarding device transmits a "menu" including information indicating the availability of one or more types of data that are awaiting transmission to the interconnect device.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: October 26, 1999
    Assignee: Extreme Networks
    Inventors: Stephen R. Haddock, Herb Schneider, Daniel J. Cimino, Siddharth Khattar, Matthew T. Knudstrup, Aaron C. Tyler