Patents by Inventor Francois Laurent Le Faucheur

Francois Laurent Le Faucheur 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).

  • Pure control-plane approach for on-path connection admission control operations in multiprotocol label switching virtual private networks
    Patent number: 9413648
    Abstract: The embodiments described herein present methods and apparatuses for on-path CAC operations in a MPLS-VPN environment. In an example embodiment, an ingress PE device receives a quality of service (QoS) resource reservation request; constructs an outgoing message that includes information allowing an egress PE device to identify the virtual private network routing and forwarding table (VRF) associated with a resource reservation resulting from the QoS resource reservation request; and transmits the outgoing message to the egress PE device, where the information allowing VRF identification is echoed back by the egress PE device and used by the ingress PE device to identify the VRF associated with the resource reservation resulting from the QoS resource reservation request. Other embodiments are described.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 9, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Francois Laurent Le Faucheur, Ashwini Dahiya, Ashok Narayanan
  • PURE CONTROL-PLANE APPROACH FOR ON-PATH CONNECTION ADMISSION CONTROL OPERATIONS IN MULTIPROTOCOL LABEL SWITCHING VIRTUAL PRIVATE NETWORKS
    Publication number: 20140050220
    Abstract: The embodiments described herein present methods and apparatuses for on-path CAC operations in a MPLS-VPN environment. In an example embodiment, an ingress PE device receives a quality of service (QoS) resource reservation request; constructs an outgoing message that includes information allowing an egress PE device to identify the virtual private network routing and forwarding table (VRF) associated with a resource reservation resulting from the QoS resource reservation request; and transmits the outgoing message to the egress PE device, where the information allowing VRF identification is echoed back by the egress PE device and used by the ingress PE device to identify the VRF associated with the resource reservation resulting from the QoS resource reservation request. Other embodiments are described.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 20, 2014
    Applicant: Cisco Technology, Inc.
    Inventors: Francois Laurent Le Faucheur, Ashwini Dahiya, Ashok Narayanan
  • Pure control-plane approach for on-path connection admission control operations in multiprotocol label switching virtual private networks
    Patent number: 8565248
    Abstract: The embodiments described herein present methods and apparatuses for on-path CAC operations in a MPLS-VPN environment. In an example embodiment, an ingress PE device receives a quality of service (QoS) resource reservation request; constructs an outgoing message that includes information allowing an egress PE device to identify the virtual private network routing and forwarding table (VRF) associated with a resource reservation resulting from the QoS resource reservation request; and transmits the outgoing message to the egress PE device, where the information allowing VRF identification is echoed back by the egress PE device and used by the ingress PE device to identify the VRF associated with the resource reservation resulting from the QoS resource reservation request. Other embodiments are described.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 22, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Francois Laurent Le Faucheur, Ashwini Dahiya, Ashok Narayanan
  • Forwarding packets to a directed acyclic graph destination using link selection based on received link metrics
    Patent number: 7924722
    Abstract: Each network node having at least one destination-oriented link toward a directed acyclic graph (DAG) destination can receive a corresponding set of path performance metrics via the destination-oriented link. The set of path performance metrics, initiated by the DAG destination outputting initial link metrics on each of its source-connecting links, identifies aggregate link metrics for a corresponding path to the DAG destination via the corresponding destination-oriented link. The network node outputs a corresponding updated set of path performance metrics on each of its source-connecting links based on the received set of path performance metrics and the corresponding link metric for the corresponding source-connecting link. Hence, each network node in the DAG can assess the performance of each connected path to the DAG destination, and forward a data packet via a selected destination-oriented link based on the corresponding path performance metrics and forwarding policies for the forwarded data packet.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: April 12, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Francois Laurent Le Faucheur, Eric M. Levy-Abegnoli
  • FORWARDING PACKETS TO A DIRECTED ACYCLIC GRAPH DESTINATION USING LINK SELECTION BASED ON RECEIVED LINK METRICS
    Publication number: 20100188979
    Abstract: Each network node having at least one destination-oriented link toward a directed acyclic graph (DAG) destination can receive a corresponding set of path performance metrics via the destination-oriented link. The set of path performance metrics, initiated by the DAG destination outputting initial link metrics on each of its source-connecting links, identifies aggregate link metrics for a corresponding path to the DAG destination via the corresponding destination-oriented link. The network node outputs a corresponding updated set of path performance metrics on each of its source-connecting links based on the received set of path performance metrics and the corresponding link metric for the corresponding source-connecting link. Hence, each network node in the DAG can assess the performance of each connected path to the DAG destination, and forward a data packet via a selected destination-oriented link based on the corresponding path performance metrics and forwarding policies for the forwarded data packet.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Pascal THUBERT, Francois Laurent LE FAUCHEUR, Eric M. LEVY-ABEGNOLI
  • Forwarding packets to a directed acyclic graph destination using link selection based on received link metrics
    Patent number: 7693064
    Abstract: Each network node having at least one destination-oriented link toward a directed acyclic graph (DAG) destination can receive a corresponding set of path performance metrics via the destination-oriented link. The set of path performance metrics, initiated by the DAG destination outputting initial link metrics on each of its source-connecting links, identifies aggregate link metrics for a corresponding path to the DAG destination via the corresponding destination-oriented link. The network node outputs a corresponding updated set of path performance metrics on each of its source-connecting links based on the received set of path performance metrics and the corresponding link metric for the corresponding source-connecting link. Hence, each network node in the DAG can assess the performance of each connected path to the DAG destination, and forward a data packet via a selected destination-oriented link based on the corresponding path performance metrics and forwarding policies for the forwarded data packet.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: April 6, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Francois Laurent Le Faucheur, Eric M. Levy-Abegnoli
  • PURE CONTROL-PLANE APPROACH FOR ON-PATH CONNECTION ADMISSION CONTROL OPERATIONS IN MULTIPROTOCOL LABEL SWITCHING VIRTUAL PRIVATE NETWORKS
    Publication number: 20090323698
    Abstract: The embodiments described herein present methods and apparatuses for on-path CAC operations in a MPLS-VPN environment. In an example embodiment, an ingress PE device receives a quality of service (QoS) resource reservation request; constructs an outgoing message that includes information allowing an egress PE device to identify the virtual private network routing and forwarding table (VRF) associated with a resource reservation resulting from the QoS resource reservation request; and transmits the outgoing message to the egress PE device, where the information allowing VRF identification is echoed back by the egress PE device and used by the ingress PE device to identify the VRF associated with the resource reservation resulting from the QoS resource reservation request. Other embodiments are described.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Applicant: Cisco Technology, Inc.
    Inventors: Francois Laurent Le Faucheur, Ashwini Dahiya, Ashok Narayanan