Patents by Inventor Tuan Duong

Tuan Duong 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: 11563602
    Abstract: A method and apparatus for providing a point-to-point connection are disclosed. The method queries for a next available label for a first provider edge router and a next available label for a second provider edge router, performs a first configuration at the first provider edge router and a second configuration at the second provider edge router, wherein the performing the first configuration comprises configuring a first interface and configuring a label for using at least one tunnel by a second interface, wherein the performing the second configuration comprises configuring a third interface and configuring a label for using the at least one tunnel by a fourth interface, and performs a first mapping for the first provider edge router from the first interface to the second interface, and a second mapping for the second provider edge router from the third interface to the fourth interface.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: January 24, 2023
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Tuan Duong, Christopher J. Chase
  • Publication number: 20220385500
    Abstract: Aspects of the subject disclosure may include, for example, instantiating a virtual provider edge router (VPE) of a network operator on a layer 3 public cloud network operated by a cloud operator, establishing a virtual layer 2 bridging domain over the layer 3 public cloud network between a core network of the network operator and the VPE, wherein the virtual layer 2 bridging domain shields infrastructure addressing of the core network of the network operator, and establishing an Interior Gateway Protocol (IGP) of the network operator on top of the virtual layer 2 bridging domain for layer 2 communication between the core network of the network operator and the VPE over the layer 3 public cloud network. Other embodiments are disclosed.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: James Uttaro, Tuan Duong
  • Patent number: 11456892
    Abstract: Aspects of the subject disclosure may include, for example, instantiating a virtual provider edge router (VPE) of a network operator on a layer 3 public cloud network operated by a cloud operator, establishing a virtual layer 2 bridging domain over the layer 3 public cloud network between a core network of the network operator and the VPE, wherein the virtual layer 2 bridging domain shields infrastructure addressing of the core network of the network operator, and establishing an Interior Gateway Protocol (IGP) of the network operator on top of the virtual layer 2 bridging domain for layer 2 communication between the core network of the network operator and the VPE over the layer 3 public cloud network. Other embodiments are disclosed.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: September 27, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: James Uttaro, Tuan Duong
  • Publication number: 20220303156
    Abstract: Aspects of the subject disclosure may include, for example, instantiating a virtual provider edge router (VPE) of a network operator on a layer 3 public cloud network operated by a cloud operator, establishing a virtual layer 2 bridging domain over the layer 3 public cloud network between a core network of the network operator and the VPE, wherein the virtual layer 2 bridging domain shields infrastructure addressing of the core network of the network operator, and establishing an Interior Gateway Protocol (IGP) of the network operator on top of the virtual layer 2 bridging domain for layer 2 communication between the core network of the network operator and the VPE over the layer 3 public cloud network. Other embodiments are disclosed.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 22, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: James Uttaro, Tuan Duong
  • Publication number: 20220247685
    Abstract: Managing prefix lists at edge devices can include detecting, at an edge device, a traffic flow that can include a packet that specifies a destination address. The edge device can measure a bandwidth associated with the traffic flow, identify a flow bandwidth threshold defined for the edge device, and determine if the bandwidth associated with the traffic flow satisfies the flow bandwidth threshold. If a determination is made that the bandwidth associated with the traffic flow satisfies the flow bandwidth threshold, the edge device can include the destination address in a prefix list stored at the edge device. If a determination is made that the bandwidth associated with the traffic flow does not satisfy the flow bandwidth threshold, the edge device can omit the destination address from the prefix list stored at the edge device.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 4, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Israel Means, Mark Lyn, Brian Freeman, Tuan Duong
  • Publication number: 20220247650
    Abstract: A system for network device measurements may use a white box to perform measurements that may help determine the likelihood of network anomalies, such as microbursts.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Steven A. Monetti, Tzuu-Yi Wang, Richard Koch, Tuan Duong, Yaron Koral, Kenneth Duell, Kathleen Meier-Hellstern, Simon Tse
  • Publication number: 20220166691
    Abstract: A processing system may obtain a first sampled flow record for a first flow in a network, comprising information regarding selected packets of the first flow, derive, from the first sampled flow record, a data volume and a duration of the first flow, and determine a first flow metric for the first flow that is calculated from the data volume and the duration, where the first flow metric is one of a plurality of flow metrics for a plurality of flows, and where the plurality of flow metrics is determined from the plurality of sampled flow records associated with the plurality of flows. The processing system may then classify the first flow into one of at least two classes, based upon the first flow metric and at least a first flow metric threshold.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 26, 2022
    Inventors: Carolyn Roche Johnson, Swapna Buccapatnam Tirumala, Fei Wu, Kartik Pandit, Kathleen Meier-Hellstern, Brian Freeman, Richard Koch, Tuan Duong, Mark Lyn, Steven Monetti
  • Patent number: 11336545
    Abstract: A system for network device measurements may use a white box to perform measurements that may help determine the likelihood of network anomalies, such as microbursts.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 17, 2022
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Steven A. Monetti, Tzuu-Yi Wang, Richard Koch, Tuan Duong, Yaron Koral, Kenneth Duell, Kathleen Meier-Hellstern, Simon Tse
  • Patent number: 11088869
    Abstract: Methods and systems may use a software-defined network (SDN) based approach for interworking different types of nodes. In an example, an SDN controller may include components that assist in building pseudowires across Ethernet virtual private network (EVPN) nodes and Border gateway protocol-virtual private local area network (LAN) service (BGP-VPLS) nodes.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: August 10, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: James Uttaro, Tuan Duong, Han Nguyen
  • Patent number: 11088530
    Abstract: A circuit breaker includes a monitor to detect a performance of an electrical load in an electrical circuit, a converter to create a digital signal based on the detected performance of the electrical load, and a digital integrated circuit to compare the digital signal with a predetermined threshold reference signal, and generate a command signal to electrically disconnect the electrical load from the electrical circuit when a level of the digital signal exceeds the predetermined threshold reference signal. The electrical load may be configured to receive a fixed or variable amount of current or voltage. The predetermined threshold reference signal may include a signal level threshold and a time threshold. The digital integrated circuit may generate the command signal when the level of the digital signal exceeds the signal level threshold and the detected performance of the electrical load exceeds the time threshold.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 10, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Robert G. Skalitzky, Tuan A. Duong, John Gambert
  • Patent number: 11025519
    Abstract: Methods, systems, and computer-readable media for measuring packet delays are provided. An input port of a network device is tapped to duplicate an input packet stream having a first packet. An output port of the network device is tapped to duplicate an output packet stream including the first packet. The duplicated input packet stream and the duplicated output packet stream is transmitted to a programmable device. The first packet in the first input packet stream is matched to the first packet in the first output packet stream. An arrival time and a departure time for the first packet is measured. The difference between the departure time of the first packet and the arrival time of the first packet is determined and the value is reported to an external collector.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 1, 2021
    Assignees: AT&T Intellectual Property I, L.P., The Trustees Of Princeton University
    Inventors: Yaron Koral, Tuan Duong, Steven A. Monetti, Tzuu-Yi Wang, Simon Tse, Shir Landau Feibish, Jennifer Rexford, Xiaoqi Chen
  • Publication number: 20210083899
    Abstract: A method and apparatus for providing a point-to-point connection are disclosed. The method queries for a next available label for a first provider edge router and a next available label for a second provider edge router, performs a first configuration at the first provider edge router and a second configuration at the second provider edge router, wherein the performing the first configuration comprises configuring a first interface and configuring a label for using at least one tunnel by a second interface, wherein the performing the second configuration comprises configuring a third interface and configuring a label for using the at least one tunnel by a fourth interface, and performs a first mapping for the first provider edge router from the first interface to the second interface, and a second mapping for the second provider edge router from the third interface to the fourth interface.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Tuan Duong, Christopher J. Chase
  • Patent number: 10887129
    Abstract: A method and apparatus for providing a point-to-point connection are disclosed. The method queries for a next available label for a first provider edge router and a next available label for a second provider edge router, performs a first configuration at the first provider edge router and a second configuration at the second provider edge router, wherein the performing the first configuration comprises configuring a first interface and configuring a label for using at least one tunnel by a second interface, wherein the performing the second configuration comprises configuring a third interface and configuring a label for using the at least one tunnel by a fourth interface, and performs a first mapping for the first provider edge router from the first interface to the second interface, and a second mapping for the second provider edge router from the third interface to the fourth interface.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: January 5, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Tuan Duong, Christopher J. Chase
  • Publication number: 20200412627
    Abstract: A system for network device measurements may use a white box to perform measurements that may help determine the likelihood of network anomalies, such as microbursts.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Inventors: Steven A. Monetti, Tzuu-Yi Wang, Richard Koch, Tuan Duong, Yaron Koral, Kenneth Duell, Kathleen Meier-Hellstern, Simon Tse
  • Patent number: 10819597
    Abstract: A system for network device measurements may use a white box to perform measurements that may help determine the likelihood of network anomalies, such as microbursts.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 27, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Steven A. Monetti, Tzuu-Yi Wang, Richard Koch, Tuan Duong, Yaron Koral, Kenneth Duell, Kathleen Meier-Hellstern, Simon Tse
  • Publication number: 20200328956
    Abstract: Methods, systems, and computer-readable media for measuring packet delays are provided. An input port of a network device is tapped to duplicate an input packet stream having a first packet. An output port of the network device is tapped to duplicate an output packet stream including the first packet. The duplicated input packet stream and the duplicated output packet stream is transmitted to a programmable device. The first packet in the first input packet stream is matched to the first packet in the first output packet stream. An arrival time and a departure time for the first packet is measured. The difference between the departure time of the first packet and the arrival time of the first packet is determined and the value is reported to an external collector.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 15, 2020
    Applicants: AT&T Intellectual Property I, L.P, The Trustees Of Princeton Univerty
    Inventors: Yaron Koral, Tuan Duong, Steven A. Monetti, Tzuu-Yi Wang, Simon Tse, Shir Landau Feibish, Jennifer Rexford, Xiaoqi Chen
  • Publication number: 20200195534
    Abstract: A system for network device measurements may use a white box to perform measurements that may help determine the likelihood of network anomalies, such as microbursts.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 18, 2020
    Inventors: Steven A. Monetti, Tzuu-Yi Wang, Richard Koch, Tuan Duong, Yaron Koral, Kenneth Duell, Kathleen Meier-Hellstern, Simon Tse
  • Publication number: 20200059381
    Abstract: Methods and systems may use a software-defined network (SDN) based approach for interworking different types of nodes. In an example, an SDN controller may include components that assist in building pseudowires across Ethernet virtual private network (EVPN) nodes and Border gateway protocol-virtual private local area network (LAN) service (BGP-VPLS) nodes.
    Type: Application
    Filed: August 27, 2019
    Publication date: February 20, 2020
    Inventors: James Uttaro, Tuan Duong, Han Nguyen
  • Publication number: 20190342119
    Abstract: Methods and systems may use a software-defined network (SDN) based approach for interworking different types of nodes. In an example, an SDN controller may include components that assist in building pseudowires across Ethernet virtual private network (EVPN) nodes and Border gateway protocol-virtual private wire service (BGP-VPWS) nodes.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 7, 2019
    Inventors: James Uttaro, Tuan Duong, Han Nguyen
  • Publication number: 20190342118
    Abstract: A method and apparatus for providing a point-to-point connection are disclosed. The method queries for a next available label for a first provider edge router and a next available label for a second provider edge router, performs a first configuration at the first provider edge router and a second configuration at the second provider edge router, wherein the performing the first configuration comprises configuring a first interface and configuring a label for using at least one tunnel by a second interface, wherein the performing the second configuration comprises configuring a third interface and configuring a label for using the at least one tunnel by a fourth interface, and performs a first mapping for the first provider edge router from the first interface to the second interface, and a second mapping for the second provider edge router from the third interface to the fourth interface.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 7, 2019
    Inventors: Tuan Duong, Christopher J. Chase