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：US20210144084A1

公开(公告)日：2021-05-13

申请号：US16727954

申请日：2019-12-27

Applicant: VMWARE, INC.

Inventor： Ankur Dubey ,  Sami Boutros ,  Abhishek Goliya

IPC: H04L12/755 ,  H04L12/733 ,  H04L12/721 ,  H04L12/741 ,  H04L12/46

Abstract: Example methods and network devices for tunnel-based routing calculation. One example method may comprise establishing a tunnel between a first tunnel interface and a second tunnel interface; establishing a first session for routing information exchange between a first tunnel endpoint and an underlay network device; establishing a second session for routing information exchange between the first tunnel interface and the second tunnel interface over the tunnel. In response to receiving first routing information over the first session, the underlay network device may be configured to be a next hop to reach the second tunnel endpoint by updating a routing table to include a first entry. Further, the underlay network device may be retained as the next hop by updating the routing table to include a second entry to override second routing information that advertises, over the second session, the second tunnel interface as the next hop.

公开(公告)号：US20210144083A1

公开(公告)日：2021-05-13

申请号：US16727968

申请日：2019-12-27

Applicant: VMWARE, Inc.

Inventor： Ankur Dubey ,  Sami Boutros ,  Abhishek Goliya

IPC: H04L12/751 ,  H04L12/24 ,  H04L12/46 ,  H04L12/745 ,  H04L29/12

Abstract: Example methods and network devices for tunnel-based routing calculation. One example method may comprise establishing a tunnel between a first tunnel interface and a second tunnel interface; establishing a first session for routing information exchange between a first tunnel endpoint and an underlay network device; establishing a second session for routing information exchange between the first tunnel interface and the second tunnel interface over the tunnel. In response to receiving first routing information over the first session, the underlay network device may be configured to be a next hop to reach the second tunnel endpoint by updating a routing table to include a first entry. In response to receiving second routing information from the second tunnel interface over the second session, the underlay network device may be retained as the next hop based on an excluded address specified in the second routing information.

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.