公开(公告)号：US11695665B2

公开(公告)日：2023-07-04

申请号：US16550311

申请日：2019-08-26

Applicant: VMware, Inc.

Inventor： Qiao Huang ,  Donghai Han ,  Qiong Wang ,  Xu Wang ,  Xinghua Hu ,  Yuping Wei

IPC: H04L43/065 ,  H04L41/046 ,  H04L43/0811 ,  H04L43/10

CPC classification number: H04L43/065 ,  H04L41/046 ,  H04L43/0811 ,  H04L43/10

Abstract: Example methods and systems are provided for cross-cloud connectivity checks. One example method may include detecting a first connectivity check packet that is addressed from a first virtualized computing instance deployed in a first cloud environment; and determining that the first connectivity check packet is destined for a second virtualized computing instance in a second cloud environment reachable via the network device. The method may also comprise: generating a second connectivity check packet by modifying the first connectivity check packet to include one or more indicators that a connectivity check is required along a datapath towards the second virtualized computing instance in the second cloud environment. The method may further comprise: sending the second connectivity check packet to cause one or more observation points along the datapath to, based on the one or more indicators, generate and send report information associated with the second connectivity packet.

公开(公告)号：US11184295B2

公开(公告)日：2021-11-23

申请号：US16236282

申请日：2018-12-28

Applicant: VMware, Inc.

Inventor： Feng Pan ,  Xu Wang ,  Qiong Wang ,  Donghai Han ,  Qi Wu

IPC: G06F15/167 ,  H04L12/931 ,  G06F15/173

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.

公开(公告)号：US10931523B2

公开(公告)日：2021-02-23

申请号：US16351542

申请日：2019-03-13

Applicant: VMware, Inc.

Inventor： Ming Shu ,  Benli Ye ,  Da Wan ,  Qiong Wang ,  Donghai Han ,  Qiao Huang ,  Xu Wang

IPC: G06F15/177 ,  H04L12/24 ,  H04L12/26

Abstract: Example methods and systems for a network management entity to perform configuration change monitoring. One example method may comprise receiving a request to monitor a datapath to which a configuration change is applicable. The datapath may include multiple network elements. The method may also comprise instructing the first host to inject, at a first network element, one or more trace packets for transmission along the datapath to a second network element. The method may further comprise: obtaining state information associated with the configuration change, and detecting that an operating condition associated with the datapath is affected by the configuration change based on the state 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：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.