Patents by Inventor Gert H. Manhoudt

Gert H. Manhoudt 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: 7636774
    Abstract: Method and apparatus for rebooting a bridge in a network containing a plurality of bridges. The method includes sending notification to other bridges that the bridge will be updated; updating the bridge; restoring a state of the network prior to the bridge being updated; and sending notification to the other bridges in the network that the update is complete. Sending notification includes sending a special bridge protocol data unit along forwarding links connected to the bridge. The method further includes the other bridges initiating a condition of not expecting additional messages from the bridge subsequent to the notification of the update and disabling a part of the bridge prior to updating. An apparatus includes a forwarding plane adapted to provide physical control of ports in the bridge and a control plane adapted for issuing and executing instructions in accordance with the method that control the physical action of the ports.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: December 22, 2009
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Ronald van Haalen, Arie Johannes de Heer, Ronald de Man, Gert H. Manhoudt, Erik Tromp
  • Patent number: 7392520
    Abstract: Method for upgrading software in a network bridge that is part of a VLAN includes sending notification to other bridges of the VLAN that the bridge is scheduled for upgrading; suspending VLAN registration and membership information in the other bridges while upgrading the bridge; restoring a state of the updated bridge and sending notification to the other bridges that the upgrading has been completed. As a result of the notification, the other bridges do not expect additional messages from the upgrading bridge. The step of restoring a state of the bridge includes synchronizing a GVRP protocol running within the network to a current VLAN membership table. Apparatus includes a forwarding plane adapted to store VLAN membership information and a control plane adapted for issuing and executing instructions that control registration and de-registration of one or more ports of the bridge according to the VLAN membership information and the presented method.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: June 24, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Arie Johannes de Heer, Gert H. Manhoudt, Erik Tromp, Siebe Warners