公开(公告)号：US20210314212A1

公开(公告)日：2021-10-07

申请号：US16906925

申请日：2020-06-19

Applicant: VMware, Inc.

Inventor： Ganesan Chandrashekhar ,  Pankaj Thakkar ,  Pavlush Margarian

IPC: H04L12/24 ,  H04L29/06

Abstract: Some embodiments provide a network management system for managing a logical network that spans multiple physical sites. The network management system includes a global network manager for receiving global logical network configuration data for the multiple physical sites. The network management system includes, at each of the physical sites, (i) a local network manager for receiving a logical network configuration for the physical site from the global network manager and (ii) a set of central controllers for distributing logical network configuration data to computing devices that implement the logical network at the physical site.

公开(公告)号：US20210314192A1

公开(公告)日：2021-10-07

申请号：US16906891

申请日：2020-06-19

Applicant: VMware, Inc.

Inventor： Ganesan Chandrashekhar ,  Abhishek Goliya

IPC: H04L12/46 ,  H04L12/66 ,  H04L12/24 ,  H04L12/715 ,  H04L12/713

Abstract: Some embodiments provide a system for implementing a logical network that spans multiple datacenters. The system includes, at each of the datacenters, a set of host computers that execute (i) data compute nodes (DCNs) belonging to the logical network and (ii) managed forwarding elements (MFEs) that implement the logical network to process data messages for the DCNs executing on the host computers. The system also includes, at each of the datacenters, a set of computing devices implementing logical network gateways for logical forwarding elements (LFEs) of the logical network. The logical network gateways are connected to the logical network gateways for the LFEs at the other datacenters. The MFEs executing on the host computers in a first datacenter communicate with the MFEs executing on the host computers in a second datacenter via the logical network gateways of the first and second datacenters.

公开(公告)号：US11088916B1

公开(公告)日：2021-08-10

申请号：US16906944

申请日：2020-06-19

Applicant: VMware, Inc.

Inventor： Ganesan Chandrashekhar ,  Pavlush Margarian ,  Amarnath Palavalli ,  Josh Dorr

IPC: G06F15/173 ,  H04L12/24 ,  H04L29/12

Abstract: Some embodiments provide a method for defining a logical network (LN) that spans multiple sites and is managed at each site by a local manager. At a global manager that manages the logical network, the method creates a tree from a definition of the LN that spans the sites. The tree includes nodes representing elements in the LN and connections between the nodes to express relationships between the elements. Each of at least a subset of nodes has a span attribute identifying sites spanned by an LN element corresponding to the node. The method uses the span attributes to create a parsed tree for each site. Based on the parsed tree of each site, the method identifies a portion of the LN definition that is relevant for the site. The method provides, to the local manager of each site, the portion of the LN definition identified for the site.

公开(公告)号：US10979352B2

公开(公告)日：2021-04-13

申请号：US16442411

申请日：2019-06-14

Applicant: VMware, Inc.

Inventor： Sami Boutros ,  Ganesan Chandrashekhar ,  Sri Mohana Singamsetty ,  Ankur Dubey ,  Abhishek Goliya

IPC: H04L12/741 ,  H04L12/721 ,  H04L12/715 ,  H04L12/761 ,  H04L12/713

Abstract: In some embodiments, a method receives a selection of a logical router in the first computing device in a first site of a plurality of sites as a preferred egress point to an external network for the logical router. The logical router is instantiated on computing devices in the plurality of sites and a single site in the sites is the preferred egress point for the logical router. The method stores identification information for the logical router in a routing table that stores identification information for multiple logical routers. The identification information is unique among multiple logical routers. The method advertises via a routing instance in a control plane to other computing devices in other sites the identification information for the logical router to indicate the logical router in the first computing device in the first site is the preferred egress point.

公开(公告)号：US20200067734A1

公开(公告)日：2020-02-27

申请号：US16112602

申请日：2018-08-24

Applicant: VMware, Inc.

Inventor： Mukesh Hira ,  Su Wang ,  Rahul Jain ,  Ganesan Chandrashekhar ,  Sandeep Siroya

IPC: H04L12/66 ,  H04L12/741 ,  H04L29/08 ,  H04L12/721

Abstract: Some embodiments provide a centralized overlay-network cloud gateway and a set of centralized services in a transit virtual private cloud (VPC) connected to multiple other compute VPCs hosting compute nodes (VMs, containers, etc.) that are part of (belong to) the overlay network. The centralized overlay-network cloud gateway provides connectivity between compute nodes of the overlay network (e.g., a logical network spanning multiple VPCs) and compute nodes in external networks. Some embodiments use the centralized overlay-network cloud gateway to provide transitive routing (e.g., routing through a transit VPC) in the absence of direct peering between source and destination VPCs. The overlay network, of some embodiments, uses the same subnetting and default gateway address for each compute node as the cloud provider network provided by the virtual private cloud provider.

公开(公告)号：US10120729B2

公开(公告)日：2018-11-06

申请号：US14181526

申请日：2014-02-14

Applicant: VMware, Inc.

Inventor： Sreeram Ravinoothala ,  Ganesan Chandrashekhar

IPC: G06F15/16 ,  G06F9/50 ,  G06F9/455

Abstract: Exemplary methods, apparatuses, and systems include virtualization software of a host computer receiving a first packet addressed to a first virtual link layer address. Each of a first plurality of virtual machines on the first host computer is configured to share the first virtual link layer address. The virtualization software of the first host computer maps a flow of packets, including the first packet, to a first virtual machine within the first plurality of virtual machines and forwards the first packet to the first virtual machine. The virtualization software of the first host computer receives a second packet from the first virtual machine in response to the first packet. The second packet includes the first virtual link layer address as a source address for the first virtual machine.

公开(公告)号：US20140376550A1

公开(公告)日：2014-12-25

申请号：US13925706

申请日：2013-06-24

Applicant: VMware, Inc.

Inventor： Andre Khan ,  Ganesan Chandrashekhar ,  Serge Maskalik ,  Rudra Rugge ,  Stephane Sezer

IPC: H04L12/741 ,  H04L12/721

CPC classification number: H04L45/74 ,  H04L45/66 ,  H04L61/103 ,  H04L61/2596 ,  H04L61/6013

Abstract: The disclosure herein describes a system, which provides uniform access to a gateway in an extended virtualized layer-2 network. During operation, the system identifies a media access control (MAC) address, which is associated with a respective gateway in the extended virtualized layer-2 network, in a layer-2 header of a data frame. This MAC address is specific to the extended virtualized layer-2 network (e.g., for a different extended virtualized layer-2 network, a different MAC address is associated with a respective gateway). The system modifies the layer-2 header by swapping the MAC address with another MAC address, which uniquely identifies a gateway in the extended virtualized layer-2 network, in the layer-2 header and forwards the frame with the modified header to the gateway.

Abstract translation: 这里的公开内容描述了在扩展的虚拟化的第2层网络中提供对网关的统一访问的系统。 在操作期间，系统在数据帧的第二层报头中识别与扩展虚拟化二层网络中的相应网关相关联的媒体访问控制（MAC）地址。 该MAC地址特定于扩展虚拟化二层网络（例如，对于不同的扩展虚拟化层2网络，不同的MAC地址与相应的网关相关联）。 通过将第二层头部的MAC地址与另一个MAC地址进行交换，从而在第二层头部中唯一标识扩展虚拟化二层网络中的网关，并将具有修改的报头的帧转发到网关。