Patents by Inventor David Charlton Forster

David Charlton Forster 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: 7668161
    Abstract: An apparatus for classifying data packet protocol values in a packet architecture comprising a packet header and a packet payload including an extension header is described. The apparatus comprises a processor configured to specify a packet protocol value in an extension header of a type requiring mandatory examination by at least one device receiving a packet. For example, an apparatus comprises a packet processor unit configured to generate a data packet comprising the extension header, wherein the extension header specifies a packet protocol value, wherein the extension header is a mandatory extension requiring examination by a receiving apparatus to which the packet may be sent, wherein the packet protocol value is also carried in one or more additional headers in the packet, and wherein the extension header enables classifying the packet based on the packet protocol value and without traversing the additional headers in the packet.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: February 23, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Dewi Gerwyn Morgan, David Charlton Forster
  • Patent number: 7649852
    Abstract: A mobile router is configured for attaching to a selected router in a clustered network (e.g., a mobile ad hoc network) based on identifying a network topology model of the clustered network from received router advertisement messages that include tree information option fields specifying attributes of the network topology model. The mobile router selects which router advertisement originator to attach to based on correlating the attributes of the router advertisement originators relative to identified priorities, and orders the router advertisement originators within a default router list based on the identified priorities. If the mobile router detects a router from a second clustered network, the mobile router advertises to the attachment router that the second clustered network is reachable, enabling the two clustered networks to communicate using a point-to-point link between the respective attachment routers.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: January 19, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Marco Molteni, David Charlton Forster
  • Publication number: 20080025308
    Abstract: An apparatus for classifying data packet protocol values in a packet architecture comprising a packet header and a packet payload including an extension header is described. The apparatus comprises a processor configured to specify a packet protocol value in an extension header of a type requiring mandatory examination by at least one device receiving a packet. For example, an apparatus comprises a packet processor unit configured to generate a data packet comprising the extension header, wherein the extension header specifies a packet protocol value, wherein the extension header is a mandatory extension requiring examination by a receiving apparatus to which the packet may be sent, wherein the packet protocol value is also carried in one or more additional headers in the packet, and wherein the extension header enables classifying the packet based on the packet protocol value and without traversing the additional headers in the packet.
    Type: Application
    Filed: July 27, 2006
    Publication date: January 31, 2008
    Inventors: Dewi Gerwyn Morgan, David Charlton Forster
  • Patent number: 7203175
    Abstract: A mobile router is configured for attaching to a selected router in a mobile network based on identifying a network topology model of the mobile network from received router advertisement messages that include tree information option fields specifying attributes of the network topology model. The mobile router selects which router advertisement originator to attach to based on correlating the attributes of the router advertisement originators relative to identified priorities, and orders the router advertisement originators within a default router list based on the identified priorities.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: April 10, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Marco Molteni, David Charlton Forster
  • Patent number: 7190678
    Abstract: A mobile router is configured for attaching to a selected router in a clustered network (e.g., a mobile ad hoc network) based on identifying a network topology model of the clustered network from received router advertisement messages that include tree information option fields specifying attributes of the network topology model. The mobile router selects which router advertisement originator to attach to based on correlating the attributes of the router advertisement originators relative to identified priorities, and orders the router advertisement originators within a default router list based on the identified priorities. If the mobile router detects a router from a second clustered network, the mobile router advertises to the attachment router that the second clustered network is reachable, enabling the two clustered networks to communicate using a point-to-point link between the respective attachment routers.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: March 13, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Marco Molteni, David Charlton Forster
  • Publication number: 20040081152
    Abstract: A mobile router is configured for attaching to a selected router in a clustered network (e.g., a mobile ad hoc network) based on identifying a network topology model of the clustered network from received router advertisement messages that include tree information option fields specifying attributes of the network topology model. The mobile router selects which router advertisement originator to attach to based on correlating the attributes of the router advertisement originators relative to identified priorities, and orders the router advertisement originators within a default router list based on the identified priorities. If the mobile router detects a router from a second clustered network, the mobile router advertises to the attachment router that the second clustered network is reachable, enabling the two clustered networks to communicate using a point-to-point link between the respective attachment routers.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Inventors: Pascal Thubert, Patrick Wetterwald, Marco Molteni, David Charlton Forster
  • Publication number: 20040032852
    Abstract: A mobile router is configured for attaching to a selected router in a mobile network based on identifying a network topology model of the mobile network from received router advertisement messages that include tree information option fields specifying attributes of the network topology model. The mobile router selects which router advertisement originator to attach to based on correlating the attributes of the router advertisement originators relative to identified priorities, and orders the router advertisement originators within a default router list based on the identified priorities.
    Type: Application
    Filed: August 15, 2002
    Publication date: February 19, 2004
    Inventors: Pascal Thubert, Patrick Wetterwald, Marco Molteni, David Charlton Forster