Patents by Inventor Andre Burdet
Andre Burdet 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: 12212426Abstract: According to some embodiments, an Ethernet Virtual Private Network (EVPN) includes a first router configured as an Internet Group Management Protocol (IGMP) version 3 querier and a second router configured as an IGMP version 2 querier. The second router is configured to receive a Selective Multicast Ethernet (SMET) route message generated by the first router. The SMET route message includes an IGMP version 3 join request from a receiver, and the IGMP version 3 join request includes an address of a multicast source device. The second router is further configured to convert the IGMP version 3 join request of the SMET route message to an IGMP version 2 join request. The second router is further configured to send multicast traffic from the multicast source device to the receiver via the first router.Type: GrantFiled: March 29, 2022Date of Patent: January 28, 2025Assignee: CISCO TECHNOLOGY, INC.Inventors: Mankamana Prasad Mishra, Sridhar Santhanam, Luc Andre Burdet, Prasad Sreedharan Nair, Dhananjaya Kasargod Rao
-
Publication number: 20240214303Abstract: Disclosed herein are systems, methods, and computer-readable media for forwarding data in response to a detected local area network failure. In one aspect, a method includes identifying one or more EVPN services in a local area network. In one aspect, the method includes allocating one or more FRR labels, each of the FRR labels corresponding to each of the EVPN services. In one aspect, the method includes broadcasting the FRR labels to a plurality of network appliances of the LAN. In one aspect, the method includes determining one or more EVI-EAD routes associated with the FRR labels. In one aspect, the method includes detecting a LAN failure of one of the plurality of the network appliances. In one aspect, the method includes forwarding incoming data to another one of the plurality of the network appliances in accordance with the determined EVI-EAD routes, in response to detecting the LAN failure.Type: ApplicationFiled: December 23, 2022Publication date: June 27, 2024Inventors: Brandon D. Theobald, Patrice Brissette, Mike RE Mallin, Luc Andre Burdet
-
Patent number: 12003406Abstract: A method, network device, and computer program product for network traffic diversion are disclosed. In one embodiment, a method according to the present disclosure includes receiving a frame at a core edge node that is a member of a redundancy group (where the frame comprises network address information and a packet), and determining whether a link is affected by a network failure. The frame was sourced by a remote core edge node that is not a member of the redundancy group, and the network address information indicates that the packet is to be forwarded via the link. In response to the link being affected by the network failure, the method further includes generating a modified frame and forwarding the modified frame to another core edge node. The generating comprises including a redirect label in the modified frame. The another core edge node is another member of the redundancy group.Type: GrantFiled: March 21, 2022Date of Patent: June 4, 2024Assignee: CISCO TECHNOLOGY, INC.Inventors: Patrice Brissette, Luc Andre Burdet, Jiri Chaloupka, Mei Zhang, Tarek Saad
-
Patent number: 11431608Abstract: In one embodiment, a method according to the present disclosure includes receiving a topology change advertisement at a remote core edge node and performing a network address information removal operation. The topology change advertisement is received from a core edge node that is in communication with an access network. The topology change advertisement indicates that a topology change has occurred in the access network. The network address information removal operation removes network address information stored by the remote core edge node. The network address information is used by the remote core edge node in participating in communications with the core edge node.Type: GrantFiled: September 30, 2020Date of Patent: August 30, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Patrice Brissette, Ali Sajassi, Mei Zhang, Luc Andre Burdet
-
Publication number: 20220247669Abstract: A mechanism that allows CE-to-PE traffic to achieve minimal traffic loss at the same rate as PE-to-CE redirection (FRR). The solution relies on a fast-unblocking of the Backup-DF interface based on appearance of redirected packets from the active DF-Elected peer. A slow-path confirmation mechanism is included to further mitigate false-positives, as well as maintaining data plane and control plane in sync.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Inventors: Luc André Burdet, Patrice Brissette, Yuri Tsier
-
Publication number: 20220210051Abstract: A method, network device, and computer program product for network traffic diversion are disclosed. In one embodiment, a method according to the present disclosure includes receiving a frame at a core edge node that is a member of a redundancy group (where the frame comprises network address information and a packet), and determining whether a link (to which the core edge node is communicatively coupled) is affected by a network failure. The frame was sourced by a remote core edge node that is not a member of the redundancy group, and the network address information indicates that the packet is to be forwarded via the link. In response to the link being affected by the network failure, the method further includes generating a modified frame and forwarding the modified frame to another core edge node. The generating comprises including a redirect label in the modified frame. The another core edge node is another member of the redundancy group.Type: ApplicationFiled: March 21, 2022Publication date: June 30, 2022Inventors: Patrice Brissette, Luc Andre Burdet, Jiri Chaloupka, Mei Zhang, Tarek Saad
-
Patent number: 11316777Abstract: A method, network device, and computer program product for network traffic diversion are disclosed. In one embodiment, a method according to the present disclosure includes receiving a frame at a core edge node that is a member of a redundancy group (where the frame comprises network address information and a packet), and determining whether a link (to which the core edge node is communicatively coupled) is affected by a network failure. The frame was sourced by a remote core edge node that is not a member of the redundancy group, and the network address information indicates that the packet is to be forwarded via the link. In response to the link being affected by the network failure, the method further includes generating a modified frame and forwarding the modified frame to another core edge node. The generating comprises including a redirect label in the modified frame. The another core edge node is another member of the redundancy group.Type: GrantFiled: November 18, 2019Date of Patent: April 26, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Patrice Brissette, Luc Andre Burdet, Jiri Chaloupka, Mei Zhang, Tarek Saad
-
Publication number: 20210152464Abstract: A method, network device, and computer program product for network traffic diversion are disclosed. In one embodiment, a method according to the present disclosure includes receiving a frame at a core edge node that is a member of a redundancy group (where the frame comprises network address information and a packet), and determining whether a link (to which the core edge node is communicatively coupled) is affected by a network failure. The frame was sourced by a remote core edge node that is not a member of the redundancy group, and the network address information indicates that the packet is to be forwarded via the link. In response to the link being affected by the network failure, the method further includes generating a modified frame and forwarding the modified frame to another core edge node. The generating comprises including a redirect label in the modified frame. The another core edge node is another member of the redundancy group.Type: ApplicationFiled: November 18, 2019Publication date: May 20, 2021Inventors: Patrice Brissette, Luc Andre Burdet, Jiri Chaloupka, Mei Zhang, Tarek Saad
-
Publication number: 20210014147Abstract: In one embodiment, a method according to the present disclosure includes receiving a topology change advertisement at a remote core edge node and performing a network address information removal operation. The topology change advertisement is received from a core edge node that is in communication with an access network. The topology change advertisement indicates that a topology change has occurred in the access network. The network address information removal operation removes network address information stored by the remote core edge node. The network address information is used by the remote core edge node in participating in communications with the core edge node.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Inventors: Patrice Brissette, Ali Sajassi, Mei Zhang, Luc Andre Burdet
-
Patent number: 10826816Abstract: In one embodiment, a method according to the present disclosure includes receiving a topology change message at a core edge node and performing a network address information removal operation. The core edge node participates in network communications with one or more access network nodes of an access network using an access network protocol. The topology change message indicates that a topology change has occurred in the access network, and the topology change message conforms to the access network protocol. The network address information removal operation removes network address information stored by the core edge node, and the network address information is used by the core edge node in participating in the network communications.Type: GrantFiled: May 15, 2018Date of Patent: November 3, 2020Assignee: Cisco Technology, Inc.Inventors: Patrice Brissette, Ali Sajassi, Mei Zhang, Luc Andre Burdet
-
Patent number: 10637687Abstract: Presented herein is an exemplified system and method that implicit aliasing in an EVPN network having provider edge nodes in a network infrastructure (e.g., a MPLS infrastructure). In particular, the exemplified system and method employ a Border Gateway Protocol (BGP) based EVPN construct that facilitates multiplexing across large number of different physical interfaces, among multiple device manufacturers and vendors, while providing implicit antialiasing functionality, and being fully supportive of EVPN capabilities. In an embodiment, a method is disclosed that joins the reachability information from a first network device and a second network device, in response to receiving a first EVPN advertisement from the first network device and receiving a second EVPN advertisement from the second network device, such that traffic later transmitted in associated with the first EVI or the first ESI are routable to both the first network device and the second network device.Type: GrantFiled: April 20, 2017Date of Patent: April 28, 2020Assignee: Cisco Technology, Inc.Inventors: Patrice Brissette, Luc André Burdet, Samir Thoria
-
Publication number: 20190356599Abstract: In one embodiment, a method according to the present disclosure includes receiving a topology change message at a core edge node and performing a network address information removal operation. The core edge node participates in network communications with one or more access network nodes of an access network using an access network protocol. The topology change message indicates that a topology change has occurred in the access network, and the topology change message conforms to the access network protocol. The network address information removal operation removes network address information stored by the core edge node, and the network address information is used by the core edge node in participating in the network communications.Type: ApplicationFiled: May 15, 2018Publication date: November 21, 2019Inventors: Patrice Brissette, Ali Sajassi, Mei Zhang, Luc Andre Burdet
-
Publication number: 20180309596Abstract: Presented herein is an exemplified system and method that implicit aliasing in an EVPN network having provider edge nodes in a network infrastructure (e.g., a MPLS infrastructure). In particular, the exemplified system and method employ a Border Gateway Protocol (BGP) based EVPN construct that facilitates multiplexing across large number of different physical interfaces, among multiple device manufacturers and vendors, while providing implicit antialiasing functionality, and being fully supportive of EVPN capabilities. In an embodiment, a method is disclosed that joins the reachability information from a first network device and a second network device, in response to receiving a first EVPN advertisement from the first network device and receiving a second EVPN advertisement from the second network device, such that traffic later transmitted in associated with the first EVI or the first ESI are routable to both the first network device and the second network device.Type: ApplicationFiled: April 20, 2017Publication date: October 25, 2018Inventors: Patrice Brissette, Luc André Burdet, Samir Thoria
-
Patent number: 9828912Abstract: An exemplary method for the operation of a CCPP with flue gas recirculation to reduce NOx emissions and/or to increase the CO2 concentration in the flue gases to facilitate CO2 capture from the flue gases as well as a plant designed to operate is disclosed. To allow a high flue gas recirculation ration (rFRG) an imposed combustion inhomogeneity ratio (ri) is used for flame stabilization. The imposed combustion inhomogeneity ratio (ri) is controlled as function of the flue gas recirculation rate (rFRG) and/or combustion pressure. Oxygen or oxygen enriched air to the gas turbine inlet gases or to the combustor is admixed to enhance operatability.Type: GrantFiled: May 26, 2011Date of Patent: November 28, 2017Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Marta De La Cruz Garcia, Thierry Lachaux, Andre Burdet, Jaan Hellat
-
Patent number: 9617915Abstract: A method of operating a combined cycle power generating system to increase the operating flexibility of the plant. The method also includes operating a thermal storage unit in a heat storing mode and in a heat releasing mode.Type: GrantFiled: September 4, 2013Date of Patent: April 11, 2017Assignee: General Electric Technology GmbHInventors: Gian Luigi Agostinelli, Andre Burdet, Michal Tadeusz Bialkowski
-
Patent number: 9297311Abstract: A method is disclosed for operating a gas turbine power plant having a gas turbine, a heat recovery steam generator and an flue gas splitter which splits flue gases into a first flue gas flow for recirculation into an inlet flow of the gas turbine and into a second flue gas flow for discharge to an environment. An oxygen-depleted gas can be used in an open cooling system for cooling hot gas parts of the gas turbine. A split compressor intake can be provided for separate feed of recirculated flue gas and fresh air into a compressor intake. Compressor blades can include a separating band which blocks intermixing of recirculated flue gas and fresh air during compression.Type: GrantFiled: March 21, 2012Date of Patent: March 29, 2016Assignee: ALSTOM TECHNOLOGY LTDInventors: Jaan Hellat, Stefan Rofka, Michael Hoevel, Eribert Benz, Andre Burdet, Frank Sander, Felix Guethe
-
Patent number: 9062886Abstract: A gas turbine (1) includes a compressor (2) that feeds an oxidizer to one or more combustion devices (3, 5) in which fuel is injected and is combusted to generate hot gases that are expanded in a turbine (4, 6). The flue gases discharged from the turbine (4, 6) are partially recirculated into the compressor (2). The fuel is a gaseous fuel that is injected into the combustion devices (3, 5) via two or more stages (20, 22, 23). One of the stages is a pilot stage (20) in which the fuel is injected along a longitudinal axis (21) of the combustion device (3, 5) or an axis parallel thereto.Type: GrantFiled: January 6, 2011Date of Patent: June 23, 2015Assignee: ALSTOM TECHNOLOGY LTD.Inventors: Marta De La Cruz Garcia, Andre Burdet
-
Publication number: 20140060064Abstract: The present disclosure relates to a method of operating a combined cycle power generating system. The method includes combusting a fuel in a gas turbine, generating electricity and a steam of flue gas, producing a stream of steam in a heat recovery steam generator, producing a stream of concentrated carbon dioxide using an absorption unit and a solvent regeneration unit, forwarding the steam stream to a steam turbine and transferring the heat energy in the stream exiting the steam turbine to the solvent regeneration unit, and a thermal storage unit for storing heat energy.Type: ApplicationFiled: September 4, 2013Publication date: March 6, 2014Applicant: ALSTOM Technology LtdInventors: Gian Luigi Agostinelli, Andre Burdet, Michal Tadeusz Bialkowski
-
Publication number: 20120240590Abstract: A method is disclosed for operating a gas turbine power plant having a gas turbine, a heat recovery steam generator and an flue gas splitter which splits flue gases into a first flue gas flow for recirculation into an inlet flow of the gas turbine and into a second flue gas flow for discharge to an environment. An oxygen-depleted gas can be used in an open cooling system for cooling hot gas parts of the gas turbine. A split compressor intake can be provided for separate feed of recirculated flue gas and fresh air into a compressor intake. Compressor blades can include a separating band which blocks intermixing of recirculated flue gas and fresh air during compression.Type: ApplicationFiled: March 21, 2012Publication date: September 27, 2012Applicant: ALSTOM Technology LtdInventors: Jaan HELLAT, Stefan Rofka, Michael Hoevel, Eribert Benz, Andre Burdet, Frank Sander, Felix Guethe
-
Publication number: 20120227440Abstract: Disclosed herein is a system comprising a first heat exchanger; the first heat exchanger being operative to reduce a temperature of a carbon dioxide rich flue gas stream to about ?100 to about ?60 C; an absorber; the absorber being located downstream of the first heat exchanger; wherein the absorber facilitates contact between the flue gas stream and a solvent to form a carbon dioxide rich solvent stream; the solvent being operative to selectively absorb carbon dioxide over other gases present in the flue gas stream; and a valve; the valve being located downstream of the absorber; the valve being operative to reduce a pressure on the carbon dioxide rich solvent stream to produce carbon dioxide and a lean carbon dioxide solvent stream.Type: ApplicationFiled: March 7, 2012Publication date: September 13, 2012Applicant: ALSTOM TECHNOLOGY LTD.Inventors: Gianfranco L. Guidati, Jean-Marc G. Amann, Viktoria Von Zedtwitz-Nikulshyna, Andre Burdet