Patents by Inventor Andrew Lambeth

Andrew Lambeth 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: 11917044
    Abstract: Methods and systems for implementing private allocated networks in a virtual infrastructure are presented. One method operation creates virtual switches in one or more hosts in the virtual infrastructure. Each port in the virtual switches is associated with a private allocated network (PAN) from a group of possible PANs. In one embodiment, one or more PANs share the same physical media for data transmission. The intranet traffic within each PAN is not visible to nodes that are not connected to the each PAN. In another operation, the method defines addressing mode tables for the intranet traffic within each PAN. The entries in the addressing mode tables define addressing functions for routing the intranet traffic between the virtual switches, and different types of addressing functions are supported by the virtual switches.
    Type: Grant
    Filed: December 18, 2022
    Date of Patent: February 27, 2024
    Assignee: Nicira, Inc.
    Inventors: W. Andrew Lambeth, Anupam Dalal, Borislav Deianov, Jun Xiao
  • Publication number: 20230421511
    Abstract: A runtime state of a virtual port associated with a virtual machine (“VM”) is persisted as the VM is migrated from a source host to a destination host. In certain embodiments, a virtual switch forwards network frames between the VM and the physical network interface via the virtual port. During migration of the VM, the runtime state of the virtual port is transferred to the destination host and applied at the second host to a virtual port associated with a second virtual switch at the destination host. The runtime state of the virtual port at the source host is then cleared, and the second virtual switch at the destination host forwards network frames between the migrated VM and the physical network interface of the destination host using the virtual port at the second host.
    Type: Application
    Filed: September 11, 2023
    Publication date: December 28, 2023
    Applicant: VMware, Inc.
    Inventors: W. Andrew Lambeth, Shudong Zhou
  • Publication number: 20230379260
    Abstract: Some embodiments provide a system that detects whether a data flow is an elephant flow; and if so, the system treats it differently than a mouse flow. The system of some embodiments detects an elephant flow by examining, among other items, the operations of a machine. In detecting, the system identifies an initiation of a new data flow associated with the machine. The new data flow can be an outbound data flow or an inbound data flow. The system then determines, based on the amount of data being sent or received, if the data flow is an elephant flow. The system of some embodiments identifies the initiation of a new data flow by intercepting a socket call or request to transfer a file.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 23, 2023
    Applicant: Nicira, Inc.
    Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
  • Patent number: 11811669
    Abstract: Some embodiments provide a system that detects whether a data flow is an elephant flow; and if so, the system treats it differently than a mouse flow. The system of some embodiments detects an elephant flow by examining, among other items, the operations of a machine. In detecting, the system identifies an initiation of a new data flow associated with the machine. The new data flow can be an outbound data flow or an inbound data flow. The system then determines, based on the amount of data being sent or received, if the data flow is an elephant flow. The system of some embodiments identifies the initiation of a new data flow by intercepting a socket call or request to transfer a file.
    Type: Grant
    Filed: December 25, 2022
    Date of Patent: November 7, 2023
    Assignee: NICIRA, INC.
    Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
  • Publication number: 20230216741
    Abstract: A network control system for managing a plurality of switching elements that implement a plurality of logical datapath sets. The network control system includes first and second controllers for generating requests for modifications to first and second logical datapath sets. The first controller is further for determining whether to make modifications to the first logical datapath set. The second controller is further for determining whether to make modifications to the second logical datapath set. Each controller is further for receiving logical control plane data that specifies logical datapath sets and for converting the logical control plane data to physical control plane data for propagating to the switching elements.
    Type: Application
    Filed: December 26, 2022
    Publication date: July 6, 2023
    Inventors: W. Andrew Lambeth, Teemu Koponen, Martin Casado
  • Publication number: 20230128660
    Abstract: Some embodiments provide a system that detects whether a data flow is an elephant flow; and if so, the system treats it differently than a mouse flow. The system of some embodiments detects an elephant flow by examining, among other items, the operations of a machine. In detecting, the system identifies an initiation of a new data flow associated with the machine. The new data flow can be an outbound data flow or an inbound data flow. The system then determines, based on the amount of data being sent or received, if the data flow is an elephant flow. The system of some embodiments identifies the initiation of a new data flow by intercepting a socket call or request to transfer a file.
    Type: Application
    Filed: December 25, 2022
    Publication date: April 27, 2023
    Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
  • Publication number: 20230118165
    Abstract: Methods and systems for implementing private allocated networks in a virtual infrastructure are presented. One method operation creates virtual switches in one or more hosts in the virtual infrastructure. Each port in the virtual switches is associated with a private allocated network (PAN) from a group of possible PANs. In one embodiment, one or more PANs share the same physical media for data transmission. The intranet traffic within each PAN is not visible to nodes that are not connected to the each PAN. In another operation, the method defines addressing mode tables for the intranet traffic within each PAN. The entries in the addressing mode tables define addressing functions for routing the intranet traffic between the virtual switches, and different types of addressing functions are supported by the virtual switches.
    Type: Application
    Filed: December 18, 2022
    Publication date: April 20, 2023
    Inventors: W. Andrew Lambeth, Anupam Dalal, Borislav Deianov, Jun Xiao
  • Patent number: 11595255
    Abstract: Some embodiments provide a method for visualizing a realization status of configuration changes for a set of logical entities of a logical network. The method generates a first presentation of a list of logical entities and a realization status for each logical entity in the list, where the realization status indicates whether all configuration changes for the logical entity have been realized. In response to a selection of a particular logical entity in the displayed list for which at least one configuration change has not been realized, the method generates a second presentation comprising a view of pending configuration changes for the selected particular logical entity.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 28, 2023
    Assignee: VMWARE, INC.
    Inventors: Kapil Goyal, W. Andrew Lambeth, Tea Liukkonen-Olmiala, Kausum Kumar
  • Patent number: 11539630
    Abstract: Some embodiments provide a system that detects whether a data flow is an elephant flow; and if so, the system treats it differently than a mouse flow. The system of some embodiments detects an elephant flow by examining, among other items, the operations of a machine. In detecting, the system identifies an initiation of a new data flow associated with the machine. The new data flow can be an outbound data flow or an inbound data flow. The system then determines, based on the amount of data being sent or received, if the data flow is an elephant flow. The system of some embodiments identifies the initiation of a new data flow by intercepting a socket call or request to transfer a file.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 27, 2022
    Assignee: NICIRA, INC.
    Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
  • Patent number: 11539659
    Abstract: Some embodiments of the invention provide a method for managing logical forwarding elements (LFEs) implemented by multiple physical forwarding elements (PFEs) operating on multiple devices, each LFE including multiple logical ports. On a host computer executing a particular machine connected to the LFE and a PFE implementing the LFE, the method identifies an address discovery message associating a particular network address of the particular machine with another network address of the particular machine. The method identifies an LFE logical port associated with the particular machine, stores in an encapsulation header an identifier that identifies this port, and then forwards the encapsulated message to a set of one or more devices implementing the LFE for the devices to use in processing data messages associated with the particular machine.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: December 27, 2022
    Assignee: VMWARE, INC.
    Inventors: Sami Boutros, W. Andrew Lambeth, Jayant Jain, Mani Kancherla
  • Patent number: 11539591
    Abstract: A method of implementing a logical switching element. The method generates data for programming a set of two or more physical forwarding elements to implement the logical switching element. The method uses a first controller to distribute at least a first portion of the generated data to a first plurality of physical forwarding elements in the set of physical forwarding elements. The first controller serves as the master controller for the first plurality of physical forwarding elements. The method uses a second controller to distribute at least a second portion of the generated data to a second plurality of physical forwarding elements in the set of physical forwarding elements. The second controller serves as the master controller for the second plurality of physical forwarding elements.
    Type: Grant
    Filed: June 9, 2019
    Date of Patent: December 27, 2022
    Assignee: NICIRA, INC.
    Inventors: W. Andrew Lambeth, Teemu Koponen, Martin Casado
  • Patent number: 11533389
    Abstract: Methods and systems for implementing private allocated networks in a virtual infrastructure are presented. One method operation creates virtual switches in one or more hosts in the virtual infrastructure. Each port in the virtual switches is associated with a private allocated network (PAN) from a group of possible PANs. In one embodiment, one or more PANs share the same physical media for data transmission. The intranet traffic within each PAN is not visible to nodes that are not connected to the each PAN. In another operation, the method defines addressing mode tables for the intranet traffic within each PAN. The entries in the addressing mode tables define addressing functions for routing the intranet traffic between the virtual switches, and different types of addressing functions are supported by the virtual switches.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: December 20, 2022
    Assignee: NICIRA, INC.
    Inventors: W. Andrew Lambeth, Anupam Dalal, Borislav Deianov, Jun Xiao
  • Publication number: 20220210067
    Abstract: Some embodiments of the invention provide a novel method of tunneling data packets. The method establishes a tunnel between a first forwarding element and a second forwarding element. For each data packet directed to the second forwarding element from the first forwarding element, the method encapsulates the data packet with a header that includes a tunnel option. The method then sends the data packet from the first forwarding element to the second forwarding element through the established tunnel. In some embodiments, the data packet is encapsulated using a protocol that is adapted to change with different control plane implementations and the implementations' varying needs for metadata.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 30, 2022
    Inventors: Jesse E. Gross, IV, Teemu Koponen, W. Andrew Lambeth
  • Patent number: 11277340
    Abstract: Some embodiments of the invention provide a novel method of tunneling data packets. The method establishes a tunnel between a first forwarding element and a second forwarding element. For each data packet directed to the second forwarding element from the first forwarding element, the method encapsulates the data packet with a header that includes a tunnel option. The method then sends the data packet from the first forwarding element to the second forwarding element through the established tunnel. In some embodiments, the data packet is encapsulated using a protocol that is adapted to change with different control plane implementations and the implementations' varying needs for metadata.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 15, 2022
    Assignee: NICIRA, INC.
    Inventors: Jesse E. Gross, IV, Teemu Koponen, W. Andrew Lambeth
  • Publication number: 20220029950
    Abstract: Some embodiments of the invention provide a method for implementing a logical network with one or more logical forwarding elements (LFEs), each with multiple logical ports. Each LFE in some embodiments is implemented by several physical forwarding elements (PFEs) operating on several devices. On a host computer executing a particular machine connected to a PFE implementing a particular LFE, the method identifies an address discovery message associating a particular network address (e.g., a layer 2 (L2) address or media access control (MAC) address) of the particular machine with a another network address (e.g., a layer 3 (L3) or an Internet Protocol (IP) address) of the particular machine.
    Type: Application
    Filed: August 30, 2021
    Publication date: January 27, 2022
    Inventors: Sami Boutros, W. Andrew Lambeth, Jayant Jain, Mani Kancherla
  • Publication number: 20210377134
    Abstract: Some embodiments provide a forwarding element that detects and handles elephant flows. In detecting, the forwarding element of some embodiments monitors statistics or measurements relating to a data flow. In handling, the forwarding element marks each packet associated with a detected elephant flow in some manner to differentiate it from a packet associated with a mouse flow. Alternatively, the forwarding element of break elephant flows into a number mouse flow by facilitating in sending packets associated with the detected elephant flow along different paths.
    Type: Application
    Filed: August 15, 2021
    Publication date: December 2, 2021
    Inventors: Teemu Koponen, Justin Pettit, Martin Casado, Bruce Davie, W. Andrew Lambeth
  • Patent number: 11108728
    Abstract: Some embodiments of the invention provide a method for implementing a logical network with one or more logical forwarding elements (LFEs), each with multiple logical ports. Each LFE in some embodiments is implemented by several physical forwarding elements (PFEs) operating on several devices. On a host computer executing a particular machine connected to a PFE implementing a particular LFE, the method identifies an address discovery message associating a particular network address (e.g., a layer 2 (L2) address or media access control (MAC) address) of the particular machine with a another network address (e.g., a layer 3 (L3) or an Internet Protocol (IP) address) of the particular machine.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: August 31, 2021
    Assignee: VMWARE, INC.
    Inventors: Sami Boutros, W. Andrew Lambeth, Jayant Jain, Mani Kancherla
  • Patent number: 11095536
    Abstract: Some embodiments provide a forwarding element that detects and handles elephant flows. In detecting, the forwarding element of some embodiments monitors statistics or measurements relating to a data flow. In handling, the forwarding element marks each packet associated with a detected elephant flow in some manner to differentiate it from a packet associated with a mouse flow. Alternatively, the forwarding element of break elephant flows into a number mouse flow by facilitating in sending packets associated with the detected elephant flow along different paths.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: August 17, 2021
    Assignee: NICIRA, INC.
    Inventors: Teemu Koponen, Justin Pettit, Martin Casado, Bruce Davie, W. Andrew Lambeth
  • Publication number: 20210226845
    Abstract: Some embodiments provide a method for visualizing a realization status of configuration changes for a set of logical entities of a logical network. The method generates a first presentation of a list of logical entities and a realization status for each logical entity in the list, where the realization status indicates whether all configuration changes for the logical entity have been realized. In response to a selection of a particular logical entity in the displayed list for which at least one configuration change has not been realized, the method generates a second presentation comprising a view of pending configuration changes for the selected particular logical entity.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 22, 2021
    Inventors: Kapil Goyal, W. Andrew Lambeth, Tea Liukkonen-Olmiala, Kausum Kumar
  • Patent number: 10880158
    Abstract: Some embodiments provide a method for determining a realization status of one or more logical entities of a logical network. The method, each time a particular event occurs, increments the value of a realization number and publishes the incremented value to a set of controllers of the logical network. Upon receiving data that specifies the state of a logical entity of the logical network, the method publishes the logical entity state's data to the set of controllers. In some embodiments, the method queries the set of controllers for a realization status of the state data for a set of logical entities that is published to the set of controllers up to a particular point of time. The submitted query, in some embodiments, includes a particular value of the realization number associated with the particular point of time.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: December 29, 2020
    Assignee: NICIRA, INC.
    Inventors: W. Andrew Lambeth, James Joseph Stabile, Ganesan Chandrashekhar, Pankaj Thakkar, Peter J. Balland, III, Igor Ganichev