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    Path Verification Method and Related Device
    11.
    发明申请
    Path Verification Method and Related Device 有权

    公开(公告)号：US20220337508A1

    公开(公告)日：2022-10-20

    申请号：US17852700

    申请日：2022-06-29

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Haibo Wang ,  Shunwan Zhuang ,  Junli Jia ,  Hong Wu ,  Shuqiang Wang

    IPC: H04L45/02

    Abstract: A path verification method includes a network device obtains path information of a packet forwarding path passing through a third autonomous system (AS), a second AS, and a first AS in sequence, and the third AS, the second AS, and the first AS are sequentially adjacent. The network device determines a first business relationship of a first AS pair and a second business relationship of a second AS pair, where the first AS pair includes the first AS and the second AS that are sequentially arranged, and the second AS pair includes the second AS and the third AS that are sequentially arranged. The network device determines, based on the first business relationship and the second business relationship, whether the packet forwarding path is valid.

    Fault diagnosis method and apparatus thereof
    12.
    发明授权
    Fault diagnosis method and apparatus thereof 有权

    公开(公告)号：US11463349B2

    公开(公告)日：2022-10-04

    申请号：US17013837

    申请日：2020-09-07

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shunwan Zhuang ,  Zhenbin Li ,  Shiping Xu ,  Kai Lu

    IPC: H04L45/28 ,  H04L41/0677 ,  H04L43/10 ,  H04L43/50 ,  H04L45/02 ,  H04L45/42

    Abstract: Various embodiments provide a fault diagnosis method and an apparatus. In those embodiments, a centralized management apparatus receives a first packet from a first network device by using a first IGP monitoring protocol session, where the first packet includes a first message sent by the first network device to a second network device. The centralized management apparatus receives a second packet from the second network device through a second IGP monitoring protocol session, where the second packet includes a second message sent by the second network device to the first network device. The centralized management apparatus performs fault diagnosis based on the first packet and the second packet.

    Monitoring BGP routes of a device in a network
    13.
    发明授权
    Monitoring BGP routes of a device in a network 有权

    公开(公告)号：US11463345B2

    公开(公告)日：2022-10-04

    申请号：US17146338

    申请日：2021-01-11

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Haijun Xu ,  Shunwan Zhuang ,  Haibo Wang

    IPC: H04L1/00 ,  H04L45/02 ,  H04L12/66 ,  H04L45/18 ,  H04L65/1069 ,  H04L45/28 ,  H04L45/128 ,  H04L65/1101

    Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.

    Label Management Method, Data Stream Processing Method, and Device
    15.
    发明申请
    Label Management Method, Data Stream Processing Method, and Device 有权

    公开(公告)号：US20220191136A1

    公开(公告)日：2022-06-16

    申请号：US17556373

    申请日：2021-12-20

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jia Che ,  Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen

    IPC: H04L45/50 ,  H04L45/42 ,  H04L12/46

    Abstract: A label management method includes allocating, by a controller, a source label to a data stream, sending, by the controller, a first Border Gateway Protocol (BGP) update packet to an ingress network device on a label switching path (LSP) of the data stream, and sending a second BGP update packet to an egress network device on the LSP of the data stream, where the first BGP update packet includes a stream identifier of the data stream and the source label, and the second BGP update packet includes a mapping relationship between the source label and a source object of the data stream.

    Route Learning Method, Packet Forwarding Method and Device, and Storage Medium
    16.
    发明申请
    Route Learning Method, Packet Forwarding Method and Device, and Storage Medium 有权

    公开(公告)号：US20220173997A1

    公开(公告)日：2022-06-02

    申请号：US17671695

    申请日：2022-02-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Haibo Wang ,  Shunwan Zhuang ,  Gang Yan

    IPC: H04L45/00 ,  H04L45/02 ,  H04L9/40

    Abstract: A route learning method includes a network device obtaining Border Gateway Protocol (BGP) routing information from a BGP peer. When a target region to which the BGP peer belongs is the same as a target region to which a BGP route belongs, the network device learns the BGP routing information. A packet forwarding method includes a network device receiving a packet through a network interface. When a target region to which the network interface belongs is the same as a target region to which the packet belongs, the network device forwards the packet.

    METHOD, APPARATUS, AND SYSTEM FOR FORWARDING PACKET IN SERVICE FUNCTION CHAINING SFC
    17.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR FORWARDING PACKET IN SERVICE FUNCTION CHAINING SFC 有权

    公开(公告)号：US20210336882A1

    公开(公告)日：2021-10-28

    申请号：US17367911

    申请日：2021-07-06

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

    IPC: H04L12/741 ,  H04L12/725 ,  H04L12/66

    Abstract: The disclosure discloses a method. The method includes: determining, by a control node, routing entry information of a service function forwarding node in a SFP in the SFC, where the routing entry information records a mapping relationship between route prefix information and next hop information, the route prefix information includes a SPI and a SI, the SPI is used to identify the SFP, the SI is used to identify a location of the service function forwarding node in the SFP, and the next hop information is used to indicate a next hop node of the service function forwarding node in the SFP; and sending, by the control node, the routing entry information to the service function forwarding node, where the routing entry information is used by the service function forwarding node to generate a forwarding table used to instruct the service function forwarding node to forward a packet.

    ROUTE PROCESSING METHOD AND NETWORK DEVICE
    18.
    发明申请
    ROUTE PROCESSING METHOD AND NETWORK DEVICE 有权

    公开(公告)号：US20210258256A1

    公开(公告)日：2021-08-19

    申请号：US17306740

    申请日：2021-05-03

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

    Inventor： Haibo Wang ,  Shunwan Zhuang

    IPC: H04L12/741 ,  H04L9/08 ,  H04L12/751 ,  H04L12/715 ,  H04L12/725

    Abstract: This application discloses a route processing method and a network device. The network device obtains a route prefix and autonomous system information associated with the obtained route prefix, where the associated autonomous system information includes to-be-verified autonomous system information. The network device verifies whether there is a match item in a route origin information base, where the match item includes the obtained route prefix and the to-be-verified autonomous system information; and determines, based on a verification result, whether to send the obtained route prefix. The network device verifies the autonomous system information associated with the to-be-sent route prefix before sending the route prefix. This reduces a possibility that the network device sends route information carrying incorrect autonomous system information, and reduces a possibility of causing an abnormal network flow direction.

    EVPN Packet Processing Method, Device, and System
    19.
    发明申请
    EVPN Packet Processing Method, Device, and System 审中-公开

    公开(公告)号：US20200014623A1

    公开(公告)日：2020-01-09

    申请号：US16570795

    申请日：2019-09-13

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Haibo Wang ,  Shunwan Zhuang ,  Qiao Liu

    IPC: H04L12/721 ,  H04L12/46 ,  H04L12/66

    Abstract: A method includes a first provider edge (PE) device sending, to a second PE device, a media access control (MAC) route learned from a customer edge (CE) device and a virtual local area network (VLAN) identifier, wherein the second PE device generates a MAC forwarding entry based on the MAC route and the VLAN identifier, where the MAC forwarding entry is used to directly forward, using the CE device, a packet whose destination MAC address is the CE device or a MAC address of a terminal device accessing the CE device. An outbound interface identifier included in the MAC forwarding entry is an identifier of an interface connected to the CE device.

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