公开(公告)号：US20150381486A1

公开(公告)日：2015-12-31

申请号：US14320090

申请日：2014-06-30

Applicant: VMware, Inc.

Inventor： Jun Xiao ,  Romain F. Lenglet

IPC: H04L12/721 ,  H04L12/26 ,  H04L12/803 ,  H04L12/24

CPC classification number: H04L45/70 ,  H04L41/046 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/0882 ,  H04L43/0894 ,  H04L43/10 ,  H04L43/12 ,  H04L45/02 ,  H04L47/125

Abstract: Some embodiments provide a method that generates different network measurements data (e.g., network topology, bandwidth estimation of different paths, etc.) for a pair of endpoints upon receiving a network administrative request (e.g., an application programming interface (API) request) or by other means (e.g., automatically and without intervention of a user). In some embodiments, the method is implemented by a network measurement agent operating on each endpoint and a centralized service component (e.g., web service layer) executing on a network manager machine (e.g., a controller) that responds to measurement requests. The network measurement agent probes the network periodically (i.e., in certain time intervals) or upon an API request that it receives through the network manager machine to gather the measurement data of a particular network topology between a pair of endpoints.

Abstract translation: 一些实施例提供了一种在接收到网络管理请求（例如，应用编程接口（API）请求）时针对一对端点生成不同网络测量数据（例如，网络拓扑，不同路径的带宽估计等）的方法或 通过其他方式（例如，自动且无需用户干预）。 在一些实施例中，该方法由在每个端点上操作的网络测量代理和在响应于测量请求的网络管理器机器（例如，控制器）上执行的集中式服务组件（例如，web服务层）来实现。 网络测量代理周期性（即，在特定的时间间隔）或其通过网络管理器机器接收到的API请求来探测网络以收集一对端点之间的特定网络拓扑的测量数据。

公开(公告)号：US09379956B2

公开(公告)日：2016-06-28

申请号：US14320052

申请日：2014-06-30

Applicant: VMware, Inc.

Inventor： Jun Xiao ,  Romain F. Lenglet

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/733 ,  H04L29/06

CPC classification number: H04L43/0894 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/0876 ,  H04L43/10 ,  H04L43/12 ,  H04L45/125 ,  H04L45/20 ,  H04L45/38 ,  H04L45/70 ,  H04L69/22

Abstract: Some embodiments provide a method that identifies a network topology that is involved in routing of the network traffic between the endpoints in a pair of endpoints. The identified topology covers (1) all the routing paths (e.g., hardware and software-defined paths) between the endpoints and (2) all the forwarding elements (e.g., hardware and software-defined non-edge forwarding elements) along each path that forwards the network traffic (e.g., network packets). The method identifies, and groups together, the receiving interfaces as well as the forwarding interfaces of each forwarding element along different paths between the endpoints. By doing so, the method can identify a real link between a pair of forwarding elements when a set of forwarding interfaces of each one of the forwarding elements in the pair points to the other forwarding element.

Abstract translation: 一些实施例提供了一种方法，其识别在一对端点中的端点之间的网络业务的路由中涉及的网络拓扑。 所识别的拓扑涵盖（1）端点之间的所有路由路径（例如，硬件和软件定义的路径）和（2）沿着每条路径的所有转发元素（例如，硬件和软件定义的非边缘转发元件） 转发网络流量（如网络数据包）。 该方法根据端点之间的不同路径识别并组合每个转发元件的接收接口以及转发接口。 通过这样做，当该对中的每一个转发元件的一组转发接口指向另一转发元件时，该方法可以识别一对转发元件之间的真实链路。

公开(公告)号：US20150381457A1

公开(公告)日：2015-12-31

申请号：US14341626

申请日：2014-07-25

Applicant: VMware, Inc.

Inventor： Jun Xiao ,  Romain F. Lenglet

IPC: H04L12/26

CPC classification number: H04L43/0894 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/0876 ,  H04L43/10 ,  H04L43/12 ,  H04L45/125 ,  H04L45/20 ,  H04L45/38 ,  H04L45/70 ,  H04L69/22

Abstract: Some embodiments provide a method for measuring network characteristics (e.g., bandwidth estimation, path diversity, etc.) without requiring administrative access to intermediate network elements and independent from the specific network fabric. The method measures the bandwidth (e.g., available bandwidth, capacity, etc.) between a given pair of endpoints (e.g., a source forwarding element and a destination forwarding element at the edges of the network) by identifying the routing paths between the endpoints and calculating the bandwidth for each path in order to estimate the network bandwidth between the endpoints.

Abstract translation: 一些实施例提供了一种用于测量网络特性（例如，带宽估计，路径分集等）的方法，而不需要对中间网络元件的管理访问并且独立于特定网络结构。 该方法通过识别端点和端点之间的路由路径来测量给定的一对端点（例如，源转发元件和网络边缘处的目的地转发元件）之间的带宽（例如，可用带宽，容量等） 计算每个路径的带宽以估计端点之间的网络带宽。

公开(公告)号：US09397920B2

公开(公告)日：2016-07-19

申请号：US14341626

申请日：2014-07-25

Applicant: VMware, Inc.

Inventor： Jun Xiao ,  Romain F. Lenglet

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/733 ,  H04L29/06

CPC classification number: H04L43/0894 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/0876 ,  H04L43/10 ,  H04L43/12 ,  H04L45/125 ,  H04L45/20 ,  H04L45/38 ,  H04L45/70 ,  H04L69/22

Abstract: Some embodiments provide a method for measuring network characteristics (e.g., bandwidth estimation, path diversity, etc.) without requiring administrative access to intermediate network elements and independent from the specific network fabric. The method measures the bandwidth (e.g., available bandwidth, capacity, etc.) between a given pair of endpoints (e.g., a source forwarding element and a destination forwarding element at the edges of the network) by identifying the routing paths between the endpoints and calculating the bandwidth for each path in order to estimate the network bandwidth between the endpoints.

Abstract translation: 一些实施例提供了一种用于测量网络特性（例如，带宽估计，路径分集等）的方法，而不需要对中间网络元件的管理访问并且独立于特定网络结构。 该方法通过识别端点和端点之间的路由路径来测量给定的一对端点（例如，源转发元件和网络边缘处的目的地转发元件）之间的带宽（例如，可用带宽，容量等） 计算每个路径的带宽以估计端点之间的网络带宽。

公开(公告)号：US20150381459A1

公开(公告)日：2015-12-31

申请号：US14320052

申请日：2014-06-30

Applicant: VMware, Inc.

Inventor： Jun Xiao ,  Romain F. Lenglet

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/733 ,  H04L29/06

CPC classification number: H04L43/0894 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/0876 ,  H04L43/10 ,  H04L43/12 ,  H04L45/125 ,  H04L45/20 ,  H04L45/38 ,  H04L45/70 ,  H04L69/22

Abstract: Some embodiments provide a method that identifies a network topology that is involved in routing of the network traffic between the endpoints in a pair of endpoints. The identified topology covers (1) all the routing paths (e.g., hardware and software-defined paths) between the endpoints and (2) all the forwarding elements (e.g., hardware and software-defined non-edge forwarding elements) along each path that forwards the network traffic (e.g., network packets). The method identifies, and groups together, the receiving interfaces as well as the forwarding interfaces of each forwarding element along different paths between the endpoints. By doing so, the method can identify a real link between a pair of forwarding elements when a set of forwarding interfaces of each one of the forwarding elements in the pair points to the other forwarding element.

Abstract translation: 一些实施例提供了一种方法，其识别在一对端点中的端点之间的网络业务的路由中涉及的网络拓扑。 所识别的拓扑涵盖（1）端点之间的所有路由路径（例如，硬件和软件定义的路径）和（2）沿着每条路径的所有转发元素（例如，硬件和软件定义的非边缘转发元件） 转发网络流量（如网络数据包）。 该方法根据端点之间的不同路径识别并组合每个转发元件的接收接口以及转发接口。 通过这样做，当该对中的每一个转发元件的一组转发接口指向另一转发元件时，该方法可以识别一对转发元件之间的真实链路。