Patents by Inventor Nabila Ould-Brahim

Nabila Ould-Brahim 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).

  • High-availability packet forwarding apparatus and method
    Patent number: 7342874
    Abstract: Failover protection is provided on the same facilities for a network connection passing through a high-availability router having shared resources managed by two control processors that respectively maintain a forwarding information bases (FIB). The two processors run asynchronously in a master/standby relationship. Integrity of processes running on the control processors is monitored and a forwarding engine forwards packets according to a FIB maintained by an in-service one of the control processors. If one of the control processors fails, the other control processor uses the same bandwidth on the same facility to continue forwarding packets for a network connection. Identifiers in each packet associated with the network connection are used to indicate the reserved bandwidth associated with the network connection.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: March 11, 2008
    Assignee: Nortel Networks Limited
    Inventors: Scott S. Pegrum, Matthew M. Yuen, Nabila Ould-Brahim, Gregory A. Wilbur
  • High availability packet forward apparatus and method
    Patent number: 7206309
    Abstract: A high availability packet forwarding router for an internet protocol (IP) network, includes two control processors, one or more service termination cards (STCs) with forwarding information bases (FIBs), and a packet forwarding engine. The two processors run asynchronously in a master/standby relationship. Integrity of processes running on the control processors is monitored and the forwarding engine forwards packets according to a FIB maintained by an in-service one of the control processors. Hitless failover and hitless software upgrades are supported.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: April 17, 2007
    Assignee: Nortel Networks Limited
    Inventors: Scott S. Pegrum, Matthew M. Yuen, Nabila Ould-Brahim
  • High-availability packet forwarding apparatus and method
    Publication number: 20030198182
    Abstract: Failover protection is provided on the same facilities for a network connection passing through a high-availability router having shared resources managed by two control processors that respectively maintain a forwarding information bases (FIB). The two processors run asynchronously in a master/standby relationship. Integrity of processes running on the control processors is monitored and a forwarding engine forwards packets according to a FIB maintained by an in-service one of the control processors. If one of the control processors fails, the other control processor uses the same bandwidth on the same facility to continue forwarding packets for a network connection. Identifiers in each packet associated with the network connection are used to indicate the reserved bandwidth associated with the network connection.
    Type: Application
    Filed: June 2, 2003
    Publication date: October 23, 2003
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Scott S. Pegrum, Matthew M. Yuen, Nabila Ould-Brahim, Gregory A. Wilbur
  • High availability packet forwarding apparatus and method
    Publication number: 20020141429
    Abstract: A high availability packet forwarding router for an internet protocol (IP) network, includes two control processors, one or more service termination cards (STCs) with forwarding information bases (FIBs), and a packet forwarding engine. The two processors run asynchronously in a master/standby relationship. Integrity of processes running on the control processors is monitored and the forwarding engine forwards packets according to a FIB maintained by an in-service one of the control processors. Hitless failover and hitless software upgrades are supported.
    Type: Application
    Filed: December 26, 2001
    Publication date: October 3, 2002
    Applicant: Nortel Networks Limited
    Inventors: Scott S. Pegrum, Matthew M. Yuen, Nabila Ould-Brahim