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).
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Patent number: 11979280Abstract: For a network control system that receives, from a user, logical datapath sets that logically express desired forwarding behaviors that are to be implemented by a set of managed switching elements, a controller for managing several managed switching elements that forward data in a network that includes the managed switching elements is described. The controller includes a set of modules for detecting a change in one or more managed switching elements and for updating logical datapath set based on the detected change. The logical datapath set is for subsequent translation into a set of physical forwarding behaviors of the managed switching elements.Type: GrantFiled: September 30, 2018Date of Patent: May 7, 2024Assignee: Nicira, Inc.Inventors: Martin Casado, Teemu Koponen, W. Andrew Lambeth, Pankaj Thakkar
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Patent number: 11917044Abstract: 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: GrantFiled: December 18, 2022Date of Patent: February 27, 2024Assignee: Nicira, Inc.Inventors: W. Andrew Lambeth, Anupam Dalal, Borislav Deianov, Jun Xiao
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Publication number: 20230421511Abstract: 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: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Applicant: VMware, Inc.Inventors: W. Andrew Lambeth, Shudong Zhou
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Publication number: 20230379260Abstract: 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: ApplicationFiled: July 27, 2023Publication date: November 23, 2023Applicant: Nicira, Inc.Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
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Patent number: 11811669Abstract: 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: GrantFiled: December 25, 2022Date of Patent: November 7, 2023Assignee: NICIRA, INC.Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
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Publication number: 20230216741Abstract: 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: ApplicationFiled: December 26, 2022Publication date: July 6, 2023Inventors: W. Andrew Lambeth, Teemu Koponen, Martin Casado
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Publication number: 20230128660Abstract: 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: ApplicationFiled: December 25, 2022Publication date: April 27, 2023Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
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Publication number: 20230118165Abstract: 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: ApplicationFiled: December 18, 2022Publication date: April 20, 2023Inventors: W. Andrew Lambeth, Anupam Dalal, Borislav Deianov, Jun Xiao
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Patent number: 11595255Abstract: 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: GrantFiled: December 23, 2020Date of Patent: February 28, 2023Assignee: VMWARE, INC.Inventors: Kapil Goyal, W. Andrew Lambeth, Tea Liukkonen-Olmiala, Kausum Kumar
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Patent number: 11539630Abstract: 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: GrantFiled: May 7, 2018Date of Patent: December 27, 2022Assignee: NICIRA, INC.Inventors: W. Andrew Lambeth, Amit Vasant Patil, Prasad Sharad Dabak, Laxmikant Vithal Gunda, Vasantha Kumar Dhanasekar, Justin Pettit
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Patent number: 11539659Abstract: 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: GrantFiled: August 30, 2021Date of Patent: December 27, 2022Assignee: VMWARE, INC.Inventors: Sami Boutros, W. Andrew Lambeth, Jayant Jain, Mani Kancherla
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Patent number: 11539591Abstract: 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: GrantFiled: June 9, 2019Date of Patent: December 27, 2022Assignee: NICIRA, INC.Inventors: W. Andrew Lambeth, Teemu Koponen, Martin Casado
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Patent number: 11533389Abstract: 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: GrantFiled: August 24, 2020Date of Patent: December 20, 2022Assignee: NICIRA, INC.Inventors: W. Andrew Lambeth, Anupam Dalal, Borislav Deianov, Jun Xiao
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Publication number: 20220210067Abstract: 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: ApplicationFiled: March 14, 2022Publication date: June 30, 2022Inventors: Jesse E. Gross, IV, Teemu Koponen, W. Andrew Lambeth
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Patent number: 11277340Abstract: 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: GrantFiled: May 15, 2020Date of Patent: March 15, 2022Assignee: NICIRA, INC.Inventors: Jesse E. Gross, IV, Teemu Koponen, W. Andrew Lambeth
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Publication number: 20220029950Abstract: 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: ApplicationFiled: August 30, 2021Publication date: January 27, 2022Inventors: Sami Boutros, W. Andrew Lambeth, Jayant Jain, Mani Kancherla
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Publication number: 20210377134Abstract: 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: ApplicationFiled: August 15, 2021Publication date: December 2, 2021Inventors: Teemu Koponen, Justin Pettit, Martin Casado, Bruce Davie, W. Andrew Lambeth
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Patent number: 11108728Abstract: 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: GrantFiled: July 24, 2020Date of Patent: August 31, 2021Assignee: VMWARE, INC.Inventors: Sami Boutros, W. Andrew Lambeth, Jayant Jain, Mani Kancherla
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Patent number: 11095536Abstract: 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: GrantFiled: May 15, 2020Date of Patent: August 17, 2021Assignee: NICIRA, INC.Inventors: Teemu Koponen, Justin Pettit, Martin Casado, Bruce Davie, W. Andrew Lambeth
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Publication number: 20210226845Abstract: 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: ApplicationFiled: December 23, 2020Publication date: July 22, 2021Inventors: Kapil Goyal, W. Andrew Lambeth, Tea Liukkonen-Olmiala, Kausum Kumar