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    METHOD AND APPARATUS FOR TRANSMITTING VIRTUAL PRIVATE NETWORK SEGMENT IDENTIFIER VPN SID, AND NETWORK DEVICE
    1.
    发明公开
    METHOD AND APPARATUS FOR TRANSMITTING VIRTUAL PRIVATE NETWORK SEGMENT IDENTIFIER VPN SID, AND NETWORK DEVICE 审中-公开

    公开(公告)号：US20230208754A1

    公开(公告)日：2023-06-29

    申请号：US18171195

    申请日：2023-02-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhaoyang Yan ,  Haibo Wang ,  Xia Chen ,  Juan Zheng ,  Shuying Liu

    IPC: H04L45/00 ,  H04L45/74 ,  H04L12/46

    CPC classification number: H04L45/34 ,  H04L45/74 ,  H04L12/4641

    Abstract: Embodiments of this application disclose a method and an apparatus for transmitting a virtual private network segment identifier (VPN SID), and a network device. An egress node sends a VPN SID corresponding to the egress node to each node in a network, and indicates to each node to store the VPN SID of the egress node. In this way, both an ingress node and each intermediate node can sense and store the VPN SID. When a VPN service needs to be provisioned, because each node stores the VPN SID of the egress node, it is possible for each node to associate the VPN SID with a forwarding entry of the VPN service to be provisioned in a forwarding table, to implement VPN route convergence. In addition, for a of a VPN corresponding to the VPN SID and that is sent by a user side, both the ingress node and the intermediate node can guide forwarding of the packet based on a locally stored VPN SID, to implement VPN service-level control.

    Path establishment method and controller
    2.
    发明授权
    Path establishment method and controller 有权

    公开(公告)号：US10749788B2

    公开(公告)日：2020-08-18

    申请号：US16185994

    申请日：2018-11-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Fengmei Wang ,  Yong Long ,  Xia Chen

    IPC: H04L12/761 ,  H04L12/727 ,  H04L12/18 ,  H04L12/803 ,  H04L12/729 ,  H04L12/715 ,  H04L12/723

    Abstract: A path establishment method and a controller are disclosed. The method includes: when detecting a path establishment request for establishing P2MP TE, computing a P2MP TE path by using head node information and tail node information included in the path establishment request; identifying a target branch node in the P2MP TE path, and obtaining a label of the target branch node; and when a third node corresponding to the head node information and the target branch node are not a same node, sending first information to the third node, and sending second information to the target branch node, where the second information is used to instruct the target branch node to generate a multicast forwarding entry. Embodiments of this application can reduce complexity of establishing the P2MP TE path.

    PACKET PROCESSING METHOD AND RELATED APPARATUS
    3.
    发明公开
    PACKET PROCESSING METHOD AND RELATED APPARATUS 审中-公开

    公开(公告)号：US20240214301A1

    公开(公告)日：2024-06-27

    申请号：US18600035

    申请日：2024-03-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianwei Mao ,  Xia Chen ,  Bing Liu

    IPC: H04L45/12

    CPC classification number: H04L45/124

    Abstract: Embodiments of the present invention disclose a packet processing method and a related apparatus, applied to a network device. The method includes: receiving a first packet sent by a client, where the first packet includes target identification information, the target identification information is used to identify a target destination, the target destination is a destination selected from N candidate destinations by the network device for the client, and N is an integer greater than 0; and determining the target destination based on the target identification information, and forwarding the first packet to the target destination, to trigger the target destination to process the first packet.

    Packet sending method and device
    5.
    发明授权
    Packet sending method and device 有权

    公开(公告)号：US11265287B2

    公开(公告)日：2022-03-01

    申请号：US16857825

    申请日：2020-04-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yongkang Zhang ,  Xia Chen

    IPC: H04L29/12 ,  H04L29/06 ,  H04L12/935 ,  H04L61/5046 ,  H04L49/00 ,  H04L67/01

    Abstract: A packet sending method includes obtaining, by a client device, an Internet Protocol (IP) anycast address of the anycast server cluster and an IP unicast address of the target server, generating, by the client device, an IP detection packet, where the IP detection packet is used to detect whether the target server is reachable based on the IP anycast address, and the IP detection packet includes the IP anycast address and the IP unicast address of the target server, and instructs the target server to replace the IP unicast address of the target server with the IP anycast address, and sending, by the client device, the IP detection packet to the target server.

    Path establishment method and controller
    7.
    发明授权
    Path establishment method and controller 有权

    公开(公告)号：US11502937B2

    公开(公告)日：2022-11-15

    申请号：US16937236

    申请日：2020-07-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Fengmei Wang ,  Yong Long ,  Xia Chen

    IPC: H04L45/16 ,  H04L45/121 ,  H04L12/18 ,  H04L47/125 ,  H04L45/125 ,  H04L45/64 ,  H04L45/50

    Abstract: A path establishment method and a controller are disclosed. The method includes: when detecting a path establishment request for establishing P2MP TE, computing a P2MP TE path by using head node information and tail node information included in the path establishment request; identifying a target branch node in the P2MP TE path, and obtaining a label of the target branch node; and when a third node corresponding to the head node information and the target branch node are not a same node, sending first information to the third node, and sending second information to the target branch node, where the second information is used to instruct the target branch node to generate a multicast forwarding entry. Embodiments of this application can reduce complexity of establishing the P2MP TE path.

    Packet Sending Method and Device
    8.
    发明申请
    Packet Sending Method and Device 审中-公开

    公开(公告)号：US20200252366A1

    公开(公告)日：2020-08-06

    申请号：US16857825

    申请日：2020-04-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yongkang Zhang ,  Xia Chen

    IPC: H04L29/12 ,  H04L12/935

    Abstract: This application provides a packet sending method, applied to an anycast service-based network. The method includes: obtaining, by a client device, an IP anycast address of the anycast server cluster and an IP unicast address of the target server; generating, by the client device, an IP detection packet, where the IP detection packet is used to detect whether the target server is reachable based on the IP anycast address, and the IP detection packet includes the IP anycast address and the IP unicast address of the target server, and instructs the target server to replace the IP unicast address of the target server with the IP anycast address; and sending, by the client device, the IP detection packet to the target server. This helps accurately detect IP anycast address reachability of a designate anycast server.

    Packet processing method, apparatus, and system
    9.
    发明授权
    Packet processing method, apparatus, and system 有权

    公开(公告)号：US12166667B2

    公开(公告)日：2024-12-10

    申请号：US17738765

    申请日：2022-05-06

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Bing Liu ,  Shuping Peng ,  Zhenbin Li ,  Xia Chen

    IPC: H04L45/24 ,  H04L12/46 ,  H04L45/64 ,  H04L45/741 ,  H04L45/745 ,  H04L61/251

    Abstract: A packet processing method includes determining, by a node in a first network, a transmission path for a packet, where the transmission path includes a path in the first network and a path traversing a second network; adding, by the node, path information to the packet based on the transmission path, where the path information includes traversal indication information, and the traversal indication information indicates an ingress node in the second network to encapsulate and transmit the packet based on an egress node that is specified in the traversal indication information and that is located in the second network; and sending, by the node to the ingress node in the second network through the first network, the packet to which the traversal indication information is added.

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