公开(公告)号：US11050647B1

公开(公告)日：2021-06-29

申请号：US16780859

申请日：2020-02-03

Applicant: VMware, Inc.

Inventor： Qiao Huang ,  Donghai Han ,  Qiong Wang ,  Jia Cheng ,  Xiaoyan Jin ,  Qiaoyan Hou

IPC: H04L12/26 ,  G06F9/455 ,  H04L29/06 ,  G06F9/50 ,  H04L29/12 ,  H04L12/46 ,  G06F9/54 ,  H04L12/751

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.

公开(公告)号：US10938632B2

公开(公告)日：2021-03-02

申请号：US16278198

申请日：2019-02-18

Applicant: VMware, Inc.

Inventor： Qiao Huang ,  Donghai Han ,  Qiong Wang ,  Benli Ye ,  Xu Wang ,  Jia Cheng

IPC: H04L12/24 ,  H04L12/26 ,  H04L29/12

Abstract: Example methods are provided for a network management entity to perform query failure diagnosis in a software-defined networking (SDN) environment. The method may comprise receiving a request to diagnose a query failure; and generating and sending control information to a host to cause the host to inject, at a first network element, a diagnostic packet for transmission along a datapath to a query failure via multiple second network elements. The diagnostic packet may be a query configured according to a query protocol supported by the query server. The method may also comprise: receiving report information associated with the diagnostic packet from at least one of the following: the first network element, the multiple second network elements and the query failure; and based on the report information, determining a diagnosis result associated with the query failure.

公开(公告)号：US11652717B2

公开(公告)日：2023-05-16

申请号：US17357965

申请日：2021-06-24

Applicant: VMware, Inc.

Inventor： Qiao Huang ,  Donghai Han ,  Qiong Wang ,  Jia Cheng ,  Xiaoyan Jin ,  Qiaoyan Hou

IPC: H04L43/0811 ,  H04L12/46 ,  G06F9/455 ,  H04L9/40 ,  G06F9/50 ,  H04L61/256 ,  G06F9/54 ,  H04L45/02

CPC classification number: H04L43/0811 ,  G06F9/45558 ,  G06F9/5072 ,  G06F9/547 ,  H04L12/4641 ,  H04L45/02 ,  H04L61/256 ,  H04L63/0263

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.

公开(公告)号：US11005745B2

公开(公告)日：2021-05-11

申请号：US16278194

申请日：2019-02-18

Applicant: VMware, Inc.

Inventor： Qiao Huang ,  Donghai Han ,  Qiong Wang ,  Benli Ye ,  Xu Wang ,  Jia Cheng

IPC: H04L12/26

Abstract: Example methods are provided for a network management entity to perform network configuration failure diagnosis in a software-defined networking (SDN) environment. The method may comprise receiving a request to diagnose a network configuration failure; and generating and sending control information to a host to cause the host to inject, at a first network element, a diagnostic packet for transmission along a datapath to a configuration server via multiple second network elements. The diagnostic packet may be configured according to a network configuration protocol supported by the configuration server. The method may also comprise: receiving report information associated with the diagnostic packet from at least one of the following: the first network element, the multiple second network elements and the configuration server; and based on the report information, determining a diagnosis result associated with the network configuration failure.