Patents by Inventor Donghai Han

Donghai Han 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: 11301278
    Abstract: Example methods are provided for a host to perform packet handling based on a microprocessor architecture configuration that includes a first node and a second node. One example method may comprise detecting, from a virtualized computing instance supported by the host, an egress packet for transmission to a destination via one of multiple physical network interface controllers (PNICs) of the host. The method may also comprise: identifying the first node assigned to the virtualized computing instance and selecting a first PNIC associated with the first node assigned to the virtualized computing instance. The multiple PNICs may include the first PNIC, and a second PNIC associated with the second node. The method may further comprise sending the egress packet to the destination via the first PNIC associated with the first node.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 12, 2022
    Assignee: VMWARE, INC.
    Inventors: Jingchun Jiang, Donghai Han
  • Publication number: 20220107825
    Abstract: Techniques for measuring the memory usage of Java programs are provided. In one set of embodiments, a Java agent can detect that a Java Virtual Machine (JVM) is loading a Java class used by a Java program. The Java agent can further determine a class name of the Java class and determine that the class name matches an entry in a first list included in a user-defined configuration file. The Java agent can then dynamically insert bytecode into a constructor of the Java class, where the inserted bytecode includes logic for registering a memory reference to an object created via the constructor.
    Type: Application
    Filed: July 11, 2019
    Publication date: April 7, 2022
    Inventors: Weiqiang Tang, Wenfeng Liu, Mengdie Song, Donghai Han, Wenying Dong, Rui Cao, Qi Wu
  • Publication number: 20220086150
    Abstract: Example methods and systems are provided for location-aware service request handling. The method may comprise: generating and sending location information associated with virtualized computing instance to a service node or a management entity for transmission to the service node. The location information may identify logical element(s) to which the virtualized computing instance is connected. The method may further comprise: in response to detecting, from the virtualized computing instance, a service request for a service from the service node, generating a modified service request by modifying the service request to include the location information associated with the virtualized computing instance; and sending the modified service request towards the service node.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Applicant: VMware, Inc.
    Inventors: YE LUO, QI WU, DONGHAI HAN
  • Publication number: 20220078112
    Abstract: A method of creating containers in a physical host that includes a managed forwarding element (MFE) configured to forward packets to and from a set of data compute nodes (DCNs) hosted by the physical host. The method creates a container DCN in the host. The container DCN includes a virtual network interface card (VNIC) configured to exchange packets with the MFE. The method creates a plurality of containers in the container DCN. The method, for each container in the container DCN, creates a corresponding port on the MFE. The method sends packets addressed to each of the plurality of containers from the corresponding MFE port to the VNIC of the container DCN.
    Type: Application
    Filed: November 14, 2021
    Publication date: March 10, 2022
    Inventors: Jianjun Shen, Donghai Han, Vadim Egorov, Corentin Derbois
  • Publication number: 20220058036
    Abstract: The disclosure provides an approach for providing an extendable system health management framework in a network. Embodiments include receiving, by a manager, a system health plugin. Embodiments include determining, by the manager, an association between the system health plugin and a host in the network based on the host satisfying one or more conditions. Embodiments include providing, by the manager, the system health plugin to the host for installation in a system health agent on the host. Embodiments include receiving, by the manager, from the host, status information for the system health plugin.
    Type: Application
    Filed: October 13, 2020
    Publication date: February 24, 2022
    Inventors: Ziyou WANG, Donghai HAN, Chaitanya KODEBOYINA, Wu QI, Qiong WANG, Wenfeng LIU
  • Publication number: 20220045932
    Abstract: Example methods and systems for intent-based network virtualization design are disclosed. One example may comprise: obtaining configuration information and traffic information associated with multiple virtualized computing instances, processing the configuration information and traffic information to identify network connectivity intents and mapping the network connectivity intents to a logical network topology template. Based on a switching intent, a first group may be assigned to a logical network domain and the logical network topology template modified to include a logical switching element. Based on a routing intent, the logical network topology template may be modified to include a logical routing element. A logical network may be configured based on the modified logical network topology template to satisfy the switching intent and routing intent.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Applicant: VMware, Inc.
    Inventors: Ziyou WANG, Donghai HAN, Mengdie SONG, Rui CAO
  • Patent number: 11212176
    Abstract: Certain embodiments described herein are generally directed to consistent processing of transport node network configuration data in a physical sharding architecture. For example, in some embodiments a first central control plane (CCP) node of a plurality of CCP nodes determines a sharding table, which is shared by the plurality of CCP nodes. In certain embodiments, the first CCP node determines a connection establishment between a first transport node and the first CCP node. In some embodiments, if the first CCP node determines, based on the sharding table, that it is a physical master of the first transport node, the first CCP node receives network configuration data from the first transport node, stores at least a portion of the network configuration data, and transmits a data update comprising at least a portion of the network configuration data to a shared data store accessible by the plurality of CCP nodes.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: December 28, 2021
    Assignee: Nicira, Inc.
    Inventors: Ziyou Wang, Jianjun Shen, Pankaj Thakkar, Hua Wang, Donghai Han
  • Publication number: 20210399961
    Abstract: Example methods and systems are provided for simulation-based cross-cloud connectivity checks. One example method may include injecting a connectivity check packet in a first cloud environment, and obtaining first report information associated with a first stage of forwarding the connectivity check packet from one or more first observation points in the first cloud environment. The method may also comprise: based on configuration information associated with one or more second observation points in the second cloud environment, simulating a second stage of forwarding the connectivity check packet towards a second virtualized computing instance via the one or more second observation points. The method may further comprise: generating second report information associated with the simulated second stage to identify a connectivity status between a first virtualized computing instance and the second virtualized computing instance based on the first report information and the second report information.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 23, 2021
    Applicant: VMware, Inc.
    Inventors: Qiao HUANG, Donghai HAN, Qiong WANG, Jia CHENG, Xiaoyan JIN, Qiaoyan HOU
  • Patent number: 11206213
    Abstract: A method of creating containers in a physical host that includes a managed forwarding element (MFE) configured to forward packets to and from a set of data compute nodes (DCNs) hosted by the physical host. The method creates a container DCN in the host. The container DCN includes a virtual network interface card (VNIC) configured to exchange packets with the MFE. The method creates a plurality of containers in the container DCN. The method, for each container in the container DCN, creates a corresponding port on the MFE. The method sends packets addressed to each of the plurality of containers from the corresponding MFE port to the VNIC of the container DCN.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: December 21, 2021
    Assignee: NICIRA, INC.
    Inventors: Jianjun Shen, Donghai Han, Vadim Egorov, Corentin Derbois
  • Patent number: 11190508
    Abstract: Example methods and systems are provided for location-aware service request handling. The method may comprise: generating and sending location information associated with virtualized computing instance to a service node or a management entity for transmission to the service node. The location information may identify logical element(s) to which the virtualized computing instance is connected. The method may further comprise: in response to detecting, from the virtualized computing instance, a service request for a service from the service node, generating a modified service request by modifying the service request to include the location information associated with the virtualized computing instance; and sending the modified service request towards the service node.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: November 30, 2021
    Assignee: VMWARE, INC.
    Inventors: Ye Luo, Qi Wu, Donghai Han
  • Patent number: 11184295
    Abstract: Example methods are provided for port mirroring based on remote direct memory access (RDMA) in a software-defined networking (SDN) environment. One example method may comprise obtaining configuration information associated with a port mirroring session between a source logical port supported by a source host and a destination logical port supported by a destination host, and establishing an RDMA-based connection between the source and destination hosts. The method may also comprise: in response to detecting a packet passing through the source logical port, generating a mirrored packet based on the detected packet, and storing, in source memory associated with the source host, the mirrored packet in association with destination information identifying the destination logical port or destination host. The method may further comprise transferring the mirrored packet from the source memory to destination memory associated with the destination host via the RDMA-based connection.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 23, 2021
    Assignee: VMWARE, INC.
    Inventors: Feng Pan, Xu Wang, Qiong Wang, Donghai Han, Qi Wu
  • Patent number: 11182352
    Abstract: In an embodiment, a computer-implemented method for dynamically exchanging runtime state data between datacenters using a controller bridge is disclosed. In an embodiment, the method comprises: requesting, and receiving, one or more first runtime state data from one or more logical sharding central control planes (“CCPs”) controlling one or more logical sharding hosts; requesting, and receiving, one or more second runtime state data from one or more physical sharding CCPs controlling one or more physical sharding hosts; aggregating, to aggregated runtime state data, the one or more first runtime state data and the one or more second runtime state data; determining updated runtime state data based on the aggregated runtime state data, the one or more first runtime state data, and the one or more second runtime state data; and transmitting the updated runtime state data to the logical sharding CCPs and physical sharding CCPs.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: November 23, 2021
    Assignee: VMware, Inc.
    Inventors: Da Wan, Jianjun Shen, Feng Pan, Pankaj Thakkar, Donghai Han
  • Patent number: 11178040
    Abstract: Example methods and systems for intent-based network virtualization design are disclosed. One example may comprise: obtaining configuration information and traffic information associated with multiple virtualized computing instances, processing the configuration information and traffic information to identify network connectivity intents and mapping the network connectivity intents to a logical network topology template. Based on a first switching intent, a first group may be assigned to a first logical network domain and the logical network topology template configured to include a first logical switching element. Based on a second switching intent, a second group may be assigned to a second logical network domain and the logical network topology template configured to include a second logical switching element. Based on a routing intent, the logical network topology template may be configured to include a logical routing element.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: November 16, 2021
    Assignee: VMWARE, INC.
    Inventors: Ziyou Wang, Donghai Han, Mengdie Song, Rui Cao
  • Publication number: 20210349765
    Abstract: Some embodiments of the invention provide a method for deploying network elements for a set of machines in a set of one or more datacenters. The datacenter set is part of one availability zone in some embodiments. The method receives intent-based API (Application Programming Interface) requests, and parses these API requests to identify a set of network elements to connect and/or perform services for the set of machines. In some embodiments, the API is a hierarchical document that can specify multiple different compute and/or network elements at different levels of compute and/or network element hierarchy. The method performs automated processes to define a virtual private cloud (VPC) to connect the set of machines to a logical network that segregates the set of machines from other machines in the datacenter set. In some embodiments, the set of machines include virtual machines and containers, the VPC is defined with a supervisor cluster namespace, and the API requests are provided as YAML files.
    Type: Application
    Filed: June 10, 2020
    Publication date: November 11, 2021
    Inventors: Zhengsheng Zhou, Qian Sun, Danting Liu, Donghai Han
  • Publication number: 20210328977
    Abstract: Example methods and systems for authentication for logical overlay network traffic are described. In one example, a first computer system may detect an inner packet and generate authentication information associated with the inner packet based on control information from a management entity. The authentication information may indicate that the inner packet originates from a trusted zone. The first computer system may further generate an encapsulated packet by encapsulating the inner packet with an outer header that specifies the authentication information, and send the encapsulated packet towards the second virtualized computing instance to cause a second computer system to verify that the inner packet originates from the trusted zone based on the authentication information.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 21, 2021
    Applicant: VMware, Inc.
    Inventors: Ye LUO, Jinjun GAO, Qi WU, Donghai HAN
  • Publication number: 20210314190
    Abstract: Some embodiments of the invention provide a method for deploying network elements for a set of machines in a set of one or more datacenters. The datacenter set is part of one availability zone in some embodiments. The method receives intent-based API (Application Programming Interface) requests, and parses these API requests to identify a set of network elements to connect and/or perform services for the set of machines. In some embodiments, the API is a hierarchical document that can specify multiple different compute and/or network elements at different levels of compute and/or network element hierarchy. The method performs automated processes to define a virtual private cloud (VPC) to connect the set of machines to a logical network that segregates the set of machines from other machines in the datacenter set. In some embodiments, the set of machines include virtual machines and containers, the VPC is defined with a supervisor cluster namespace, and the API requests are provided as YAML files.
    Type: Application
    Filed: June 10, 2020
    Publication date: October 7, 2021
    Inventors: Danting Liu, Jianjun Shen, Kai Su, Qian Sun, Wenfeng Liu, Donghai Han
  • Publication number: 20210311803
    Abstract: Some embodiments of the invention provide a method for deploying network elements for a set of machines in a set of one or more datacenters. The datacenter set is part of one availability zone in some embodiments. The method receives intent-based API (Application Programming Interface) requests, and parses these API requests to identify a set of network elements to connect and/or perform services for the set of machines. In some embodiments, the API is a hierarchical document that can specify multiple different compute and/or network elements at different levels of compute and/or network element hierarchy. The method performs automated processes to define a virtual private cloud (VPC) to connect the set of machines to a logical network that segregates the set of machines from other machines in the datacenter set. In some embodiments, the set of machines include virtual machines and containers, the VPC is defined with a supervisor cluster namespace, and the API requests are provided as YAML files.
    Type: Application
    Filed: June 10, 2020
    Publication date: October 7, 2021
    Inventors: Zhengsheng Zhou, Kai Su, Jackie Lan, Danting Liu, Qian Sun, Donghai Han
  • Publication number: 20210314361
    Abstract: Some embodiments of the invention provide a method for deploying network elements for a set of machines in a set of one or more datacenters. The datacenter set is part of one availability zone in some embodiments. The method receives intent-based API (Application Programming Interface) requests, and parses these API requests to identify a set of network elements to connect and/or perform services for the set of machines. In some embodiments, the API is a hierarchical document that can specify multiple different compute and/or network elements at different levels of compute and/or network element hierarchy. The method performs automated processes to define a virtual private cloud (VPC) to connect the set of machines to a logical network that segregates the set of machines from other machines in the datacenter set. In some embodiments, the set of machines include virtual machines and containers, the VPC is defined with a supervisor cluster namespace, and the API requests are provided as YAML, files.
    Type: Application
    Filed: June 10, 2020
    Publication date: October 7, 2021
    Inventors: Zhengsheng Zhou, Abhishek Raut, Jianjun Shen, Donghai Han
  • Publication number: 20210314240
    Abstract: Some embodiments of the invention provide a method for deploying network elements for a set of machines in a set of one or more datacenters. The datacenter set is part of one availability zone in some embodiments. The method receives intent-based API (Application Programming Interface) requests, and parses these API requests to identify a set of network elements to connect and/or perform services for the set of machines. In some embodiments, the API is a hierarchical document that can specify multiple different compute and/or network elements at different levels of compute and/or network element hierarchy. The method performs automated processes to define a virtual private cloud (VPC) to connect the set of machines to a logical network that segregates the set of machines from other machines in the datacenter set. In some embodiments, the set of machines include virtual machines and containers, the VPC is defined with a supervisor cluster namespace, and the API requests are provided as YAML files.
    Type: Application
    Filed: June 10, 2020
    Publication date: October 7, 2021
    Inventors: Danting Liu, Jianjun Shen, Abhishek Raut, Wenfeng Liu, Donghai Han
  • Publication number: 20210281508
    Abstract: For a managed network including multiple host machines implementing multiple logical networks, some embodiments provide a method that reduces the memory and traffic load required to implement the multiple logical networks. The method generates configuration data for each of multiple host machines including (i) data to configure a host machine to implement a set of logical forwarding elements that belong to a set of routing domains and (ii) identifiers for each routing domain in the set of routing domains. The method then receives data regarding tunnels endpoints operating on each of the host machines and an association with the routing identifiers sent to the host machines. The method then generates a routing domain tunnel endpoint list for each routing domain based on the data received from each of the host machines including a list of the tunnel endpoints associated with the routing domain which the host machines can use to facilitate packet processing.
    Type: Application
    Filed: May 10, 2021
    Publication date: September 9, 2021
    Inventors: Caixia Jiang, Jianjun Shen, Pankaj Thakkar, Anupam Chanda, Ronghua Zhang, Ganesan Chandrashekhar, Vicky Liu, Da Wan, Frank Pan, Hua Wang, Donghai Han