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    ROUTE INFORMATION MANAGEMENT APPARATUS, ROUTE INFORMATION MANAGEMENT METHOD AND PROGRAM
    1.
    发明申请
    ROUTE INFORMATION MANAGEMENT APPARATUS, ROUTE INFORMATION MANAGEMENT METHOD AND PROGRAM 有权

    公开(公告)号：US20230102529A1

    公开(公告)日：2023-03-30

    申请号：US17801986

    申请日：2020-02-25

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Yukihiro TOGARI ,  Shingo OKADA ,  Hisashi KOJIMA ,  Saburo SETO

    IPC分类号： H04L45/586 ,  H04L45/44

    摘要： A path information managing apparatus includes a storage unit configured to store, in association with a virtual IP address, a locator of each of a plurality of aggregation routers and a locator of each of a plurality of virtual accommodation routers that are accommodated in each aggregation router and accommodate cluster, an acquisition unit configured to acquire the locator of the aggregation router associated with the virtual IP address and the locator of each virtual accommodation router, in response to an inquiry for a virtual IP address to a destination of a packet, the inquiry being transmitted from an accommodation router that receives the packet from a terminal, and a transmission unit configured to transmit, to the accommodation router, the acquired locator of the aggregation router, the acquired locator of each virtual accommodation router, and a weight of each virtual accommodation router, or the locator of any virtual accommodation router.

    Packet forwarding method and network device
    2.
    发明授权
    Packet forwarding method and network device 有权

    公开(公告)号：US11611508B2

    公开(公告)日：2023-03-21

    申请号：US17234192

    申请日：2021-04-19

    申请人： Huawei Technologies Co., Ltd.

    发明人： Jie Yang

    IPC分类号： H04L12/46 ,  H04L12/713 ,  H04L12/723 ,  H04L12/751 ,  H04L45/586 ,  H04L45/02 ,  H04L45/50

    摘要： A packet forwarding method includes obtaining, by a network device, a first tunnel identifier of a first packet. When the first tunnel identifier is a first value, and forwarding, by the network device, the first packet based on a first routing group in a virtual routing and forwarding (VRF) table. The first routing group consists of one or more local routes, and each next-hop outbound interface of the one or more local routes is a local outbound interface. The network device forwards the packet based on a local routing group including only a local route in the VRF table such that the packet is forwarded to a local virtual machine for processing, and is not forwarded to another tunnel endpoint device during packet forwarding.

    Managing forwarding elements at edge nodes connected to a virtual network
    3.
    发明授权
    Managing forwarding elements at edge nodes connected to a virtual network 有权

    公开(公告)号：US11611507B2

    公开(公告)日：2023-03-21

    申请号：US16721964

    申请日：2019-12-20

    申请人： VMWARE, INC.

    发明人： Navaneeth Krishnan Ramaswamy ,  Gopa Kumar ,  Stephen Craig Connors

    IPC分类号： H04L12/715 ,  H04L12/26 ,  H04L12/927 ,  H04L29/06 ,  H04L45/586 ,  H04L45/50 ,  H04L9/40 ,  H04L43/0829 ,  H04L43/087 ,  H04L12/46 ,  H04L41/0873 ,  H04L43/0823 ,  H04L45/02 ,  H04L45/021

    摘要： Some embodiments provide a method for maintaining a virtual network that spans at least one cloud datacenter separate from multi-machine edge nodes of an entity. This method configures a gateway in the cloud datacenter to establish secure connections with several edge devices at several multi-machine edge nodes (e.g., branch offices, datacenters, etc.) in order to establish the virtual network. The method configures the gateway to assess quality of connection links with different edge devices, and to terminate a secure connection with a particular edge device for a duration of time after the assessed quality of the connection link to the particular edge device is worse than a threshold value. In some embodiments, the gateway is configured to distribute routes to edge devices at the edge nodes, and to forgo distributing any route to the particular edge device along the connection link for the duration of time when the assessed quality of the connection link is worse than (e.g., less than) a threshold value. In different embodiments, the gateway assesses the quality of the connection link based on different factors or different combinations of factors. Examples of such factors in some embodiments include the following attributes of a connection link: packet loss, latency, signal jitter, etc. Also, the routes that the gateway distributes in some embodiments include routes that the edge devices distribute to the gateway, as well as routes that the gateway learns on its own.

    In-place conversion of a virtual switch on a host
    4.
    发明授权
    In-place conversion of a virtual switch on a host 有权

    公开(公告)号：US11601383B1

    公开(公告)日：2023-03-07

    申请号：US17476758

    申请日：2021-09-16

    申请人： VMware, Inc.

    发明人： Nilesh Nipane ,  Aarti Lolage ,  Nikhil Rajguru ,  Akshay Kale ,  Kaustubh Naniwadekar

    IPC分类号： H04L12/24 ,  H04L12/46 ,  H04L12/931 ,  H04L12/935 ,  H04L49/00 ,  H04L45/586

    摘要： The disclosure provides an approach for in-place conversion of a virtual switch on a host. Techniques are provided for in-place conversion of a virtual switch from a first type of virtual switch to a destination type of virtual switch. A method includes rekeying, by a second manager agent, one or more uplink ports associated with one or more logical switches implemented by the virtual on the host with the unique identifier. The rekeying includes updating one or more existing uplink port identifiers assigned to the one or more uplink ports with the unique identifier associated with a first manager agent. The method includes removing, by the first manager agent, an association of the one or more uplink ports with the opaque network; and informing the first manager and the second manager that the virtual switch is of the destination type of virtual switch.

    Orchestration of overlay paths for wide area network virtualization
    7.
    发明授权
    Orchestration of overlay paths for wide area network virtualization 有权

    公开(公告)号：US11563678B1

    公开(公告)日：2023-01-24

    申请号：US17397525

    申请日：2021-08-09

    申请人： Microsoft Technology Licensing, LLC

    发明人： Abhishek Udupa ,  Sharad Agarwal ,  Ryan Andrew Beckett ,  Rachee Singh ,  Paramvir Bahl

    IPC分类号： G06F13/00 ,  H04L45/586 ,  H04L45/24 ,  H04L45/42 ,  H04L45/02

    摘要： The present application relates to traffic routing for overlay paths in a public cloud network. A path orchestrator receives a configuration of a set of overlay paths for a wide area network virtualization from a client, each overlay path including virtual routing nodes associated with respective geographic regions and at least one policy for a link between the virtual routing nodes. The path orchestrator is configured to instantiate a plurality of virtual routers on computing resources of the public cloud network located within the respective geographic regions based on the configuration, each virtual router configured to route traffic according to the policy for each link associated with the virtual routing node corresponding to the virtual router. The path orchestrator is configured to scale the plurality of virtual routers based on traffic for the client on the set of overlay paths.

    Method, node, and medium for establishing connection between a source and endpoint via one or more border nodes
    8.
    发明授权
    Method, node, and medium for establishing connection between a source and endpoint via one or more border nodes 有权

    公开(公告)号：US11546254B2

    公开(公告)日：2023-01-03

    申请号：US17098633

    申请日：2020-11-16

    申请人： Cisco Technology, Inc.

    发明人： Prakash Chand Jain ,  Sanjay Kumar Hooda ,  Victor M. Moreno ,  Satish Kumar Kondalam

    IPC分类号： H04L45/302 ,  H04L45/586 ,  H04L45/64 ,  H04L47/80 ,  H04L49/25

    摘要： In one embodiment, a method is performed at a node in a multi-site enterprise fabric. The method includes obtaining map entries from a fabric control plane of the multi-site enterprise fabric, where the map entries are associated with identifiers of endpoints in external networks, site and virtual network identifiers of sites in the multi-site enterprise fabric, location identifiers of border nodes, and characteristics of the border nodes. The method further includes receiving a request from a source to connect to an external endpoint. After deriving an external endpoint identifier and source parameters, the method additionally includes establishing at least one connection between the source and the external endpoint via border node(s) that are selected from the map entries based at least in part on the source parameters, the external endpoint identifier, and characteristics of the border node(s) with their site and virtual network identifier(s) along the at least one connection.