TUNNEL-BASED ROUTING CALCULATION IN SOFTWARE-DEFINED NETWORKING (SDN) ENVIRONMENTS

    公开(公告)号:US20210144084A1

    公开(公告)日:2021-05-13

    申请号:US16727954

    申请日:2019-12-27

    申请人: VMWARE, INC.

    摘要: 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.

    TUNNEL-BASED ROUTING CALCULATION WITH ADDRESS EXCLUSION IN SOFTWARE DEFINED NETWORKING (SDN) ENVIRONMENTS

    公开(公告)号:US20210144083A1

    公开(公告)日:2021-05-13

    申请号:US16727968

    申请日:2019-12-27

    申请人: VMWARE, Inc.

    摘要: 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.

    Using a control plane to set a preferred egress point in multi-site logical routers

    公开(公告)号:US10979352B2

    公开(公告)日:2021-04-13

    申请号:US16442411

    申请日:2019-06-14

    申请人: VMware, Inc.

    摘要: 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.