Patents by Inventor John P Stubley

John P Stubley 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).

  • Patent number: 8804707
    Abstract: A network unit for use in a switching fabric includes multiple units collectively constituting a single network entity, each having ports for the reception and forwarding of data packets. The network unit has at least one fabric port for connection to a partner port on another one of the units by at least one link. The network unit is organized to send and receive via the at least one fabric port protocol packets which contain information on the path costs between said units in the fabric and to perform an algorithm to determine, on the basis of said information, routes for data packets within the fabric to other units of the fabric.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: August 12, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Maurice A Goodfellow, Paul J Moran, John P Stubley, Alan E Ainsworth
  • Patent number: 8175086
    Abstract: A network unit for use in a switching fabric includes multiple units collectively constituting a single network entity, each having ports for the reception and forwarding of data packets. The network unit has at least one fabric port for connection to a partner port on another one of the units by at least one link. The network unit is organized to send and receive via the at least one fabric port protocol packets which contain information on the path costs between said units in the fabric and to perform an algorithm to determine, on the basis of said information, routes for data packets within the fabric to other units of the fabric.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: May 8, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Maurice A Goodfellow, Paul J Moran, John P Stubley, Alan E Ainsworth
  • Publication number: 20080279106
    Abstract: A network unit for use in a switching fabric includes multiple units collectively constituting a single network entity, each having ports for the reception and forwarding of data packets. The network unit has at least one fabric port for connection to a partner port on another one of the units by at least one link. The network unit is organized to send and receive via the at least one fabric port protocol packets which contain information on the path costs between said units in the fabric and to perform an algorithm to determine, on the basis of said information, routes for data packets within the fabric to other units of the fabric.
    Type: Application
    Filed: June 17, 2008
    Publication date: November 13, 2008
    Applicant: 3Com Corporation
    Inventors: Maurice A. GOODFELLOW, Paul J. Moran, John P. Stubley, Alan E. Ainsworth
  • Patent number: 7403484
    Abstract: A network unit for use in a switching fabric stores for each network unit in the switching fabric a respective change identification number. In each unit this number is incremented on each change of state. The unit broadcasts protocol packets which indicates incremented change identification numbers; receives corresponding packets from the other units; and determines when the last change identification numbers in the table are the same for all the units. This allows a control based on whether all the units know that all the other units have been updated in response to all the changes of state in the fabric. The network unit can also participate in a routing algorithm, and particularly a shortest path algorithm, within a fabric that constitutes a single network entity.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: July 22, 2008
    Inventors: Maurice A Goodfellow, Paul J Moran, John P Stubley, Alan E Ainsworth
  • Publication number: 20040105440
    Abstract: An edge switch for an Ethernet network maintains look-up tables of media access control addresses and network addresses for local sources and destinations at least two sub-nets, so that it can forward packets directly even when the local source and destination are on different sub-nets and forwards packets to a core router when the destination is not local to the edge switch.
    Type: Application
    Filed: November 26, 2003
    Publication date: June 3, 2004
    Applicant: 3Com Corporation
    Inventors: Graham Strachan, Paul J. Moran, David Capon, John P. Stubley