公开(公告)号：US20210399961A1

公开(公告)日：2021-12-23

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: 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：US20220231961A1

公开(公告)日：2022-07-21

申请号：US17197397

申请日：2021-03-10

Applicant: VMware, Inc.

Inventor： Xi CHENG ,  Caixia JIANG ,  Xiaoyan JIN ,  Qiong WANG

IPC: H04L12/863 ,  H04L29/08 ,  H04L12/741

Abstract: Example methods and systems to perform flow cache information update(s) for packet processing are described. In one example, a network element may configure flow cache information specifying a set of actions based on a sequence of stages that is executable during slow-path packet processing. The network element may configure dependency information specifying execution dependence or independence among the set of actions during fast-path packet processing. In response to detecting a configuration change associated with stage(s) from the sequence of stages, the network element may identify first action(s) affected by the configuration change and second action(s) not affected by the configuration change. This way, a granular update may be performed to the flow cache information by updating the at least one first action, but not the at least one second action.

公开(公告)号：US20220150147A1

公开(公告)日：2022-05-12

申请号：US17093517

申请日：2020-11-09

Applicant: VMware, Inc.

Inventor： Xi CHENG ,  Haoran CHEN ,  Xiaoyan JIN ,  Caixia JIANG ,  Qiong WANG ,  Donghai HAN

IPC: H04L12/26 ,  H04L12/46 ,  H04L12/851 ,  H04L12/823 ,  H04L12/715 ,  G06F9/455

Abstract: Example methods and systems for flow-based latency measurement for logical overlay network traffic are described. In one example, in response to detecting a first inner data packet associated with a packet flow, a first computer system may generate and send a first encapsulated packet via a logical overlay tunnel towards a second computer system. The first encapsulated packet may be generated by encapsulating the first inner data packet with a first outer header that includes first time information associated with the first inner data packet at the first computer system. In response to detecting a second encapsulated packet from the second computer system via the logical overlay tunnel, the first computer system may determine a flow-based latency measurement associated with the packet flow based on the first time information, and second time information identified from a second outer header of the second encapsulated packet.

公开(公告)号：US20210184953A1

公开(公告)日：2021-06-17

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

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.