Patents by Inventor Scott Strentzsch

Scott Strentzsch 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).

  • System and method for dynamically constructing packet classification rules
    Patent number: 7239639
    Abstract: A system and method classifies packets with a programmably fixed network processor program and dynamically updated data structures. The network processor program selects predetermined packet field values of the packets transmitted across the network and classifies the packets by matching one or more packet field values with a data structure. New packet classifications are dynamically created by updating the data structure to associate one or more predetermined packet field values with the new packet classification. For instance, a parse tree program extracts packet header information and matches the packet header information to the data structure. A pattern tree data structure provides longest prefix matches and an ordered tree data structure provides combination matches so that classification of arbitrary Boolean combinations of extracted header fields can be formed.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: July 3, 2007
    Assignee: 3Com Corporation
    Inventors: Dennis J. Cox, Alexander I. Tomlinson, Joseph Dempsey, Matthew C. Laswell, Scott Strentzsch, Stephen Egbert, Terry G. Ahnstedt, Brian C. Smith
  • System and method for dynamically constructing packet classification rules
    Publication number: 20030123452
    Abstract: A system and method classifies packets with a programmably fixed network processor program and dynamically updated data structures. The network processor program selects predetermined packet field values of the packets transmitted across the network and classifies the packets by matching one or more packet field values with a data structure. New packet classifications are dynamically created by updating the data structure to associate one or more predetermined packet field values with the new packet classification. For instance, a parse tree program extracts packet header information and matches the packet header information to the data structure. A pattern tree data structure provides longest prefix matches and an ordered tree data structure provides combination matches so that classification of arbitrary Boolean combinations of extracted header fields can be formed.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 3, 2003
    Applicant: TippingPoint Technologies, Inc.
    Inventors: Dennis J. Cox, Alexander I. Tomlinson, Joseph F. Dempsey, Matthew C. Laswell, Scott Strentzsch, Stephen Egbert, Terry G. Ahnstedt, Brian C. Smith
  • Method and apparatus for providing network access control using a domain name system
    Patent number: 6256671
    Abstract: A method and apparatus for providing network access control by manipulating a domain name system includes receiving, from a source, a request for an address which corresponds to a host name. A check is made as to whether a requestor corresponding to the request is allowed to access a host system corresponding to the host name. If the requestor is not allowed to access the host system corresponding to the host name, then an indication is provided to the source of the request that the address which corresponds to the host name cannot be located.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: July 3, 2001
    Assignee: Nortel Networks Limited
    Inventors: Scott A. Strentzsch, Lewis T. Donzis