公开(公告)号：US20240283735A1

公开(公告)日：2024-08-22

申请号：US18421926

申请日：2024-01-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： CHENG LI ,  Zhenbin Li ,  Jun Gong ,  Guoyi Chen ,  Jie Dong

IPC: H04L45/00 ,  H04L45/12 ,  H04L45/42

CPC classification number: H04L45/566 ,  H04L45/123 ,  H04L45/42

Abstract: This application discloses a method that includes obtaining by a network device an original segment list corresponding to a packet forwarding path, where the original segment list includes original segment identifiers that are sequentially arranged, and each of the original segment identifiers that are sequentially arranged corresponds to one node or link on the packet forwarding path. The method further includes comparing by the network device a plurality of successively adjacent original segment identifiers in the original segment list, to generate a plurality of successively adjacent compressed segment identifiers, where a length of each compressed segment identifier is less than a length of a corresponding original segment identifier, and generating by the network device a compressed segment list, where the compressed segment list includes a plurality of compressed segment identifiers, and the compressed segment list is used to forward a packet along the packet forwarding path.

公开(公告)号：US20240223504A1

公开(公告)日：2024-07-04

申请号：US18606443

申请日：2024-03-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shuping Peng ,  Sheng Fang ,  Shunwan Zhuang ,  Haibo Wang ,  Zhenbin Li

IPC: H04L47/2425

CPC classification number: H04L47/2425

Abstract: A method, in which a first network device obtains a first service packet and a plurality of flow specification FlowSpec rule groups, where any FlowSpec rule group in the plurality of FlowSpec rule groups indicates a rule set for processing a service packet, and different FlowSpec rule groups correspond to different priorities. The first network device determines a target FlowSpec rule group, where the target FlowSpec rule group is a FlowSpec rule group in the plurality of FlowSpec rule groups that successfully matches the first service packet and that has the highest priority. The first network device processes the first service packet according to the target FlowSpec rule group. A service packet is processed according to a FlowSpec rule group, so that processing efficiency can be improved.

公开(公告)号：US20240179087A1

公开(公告)日：2024-05-30

申请号：US18436540

申请日：2024-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L45/021 ,  H04L45/00 ,  H04L45/02 ,  H04L45/18

CPC classification number: H04L45/021 ,  H04L45/04 ,  H04L45/18 ,  H04L45/22

Abstract: A BGP route identification method and apparatus are provided. A network device obtains a BGP route. The BGP route includes an autonomous system path attribute AS_PATH attribute, the AS_PATH attribute includes a first autonomous system number AS number, an AS number corresponding to an autonomous system that the network device is located in or manages is a second AS number, and the first AS number is equal to the second AS number. The network device determines, based on the first AS number and the second AS number, whether the BGP route is abnormal.

公开(公告)号：US11924099B2

公开(公告)日：2024-03-05

申请号：US17171429

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Zhenbin Li ,  Yang Xia ,  Taixu Tian

IPC: H04L45/74 ,  H04L45/00 ,  H04L45/50

CPC classification number: H04L45/74 ,  H04L45/34 ,  H04L45/50 ,  H04L2212/00

Abstract: A segment routing device receives a first packet from a first network. A first packet header of the first packet includes a segment list. The segment list includes a plurality of sequentially arranged identifiers. The identifiers include a first-type identifier and a plurality of second-type identifiers. Network devices or links identified by the first-type identifier and the second-type identifier are respectively on the first network and a second network. A type of the first network is different from a type of the second network. The segment routing device encapsulates a second packet header for the first packet to form a second packet. The second packet header includes the plurality of second-type identifiers. The segment routing device sends the second packet to the second network.

公开(公告)号：US11902156B2

公开(公告)日：2024-02-13

申请号：US17520737

申请日：2021-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cheng Li ,  Zhenbin Li ,  Jun Gong ,  Guoyi Chen ,  Jie Dong

IPC: H04L45/00 ,  H04L45/12 ,  H04L45/42

CPC classification number: H04L45/566 ,  H04L45/123 ,  H04L45/42

Abstract: This application discloses a method that includes obtaining by a network device an original segment list corresponding to a packet forwarding path, where the original segment list includes original segment identifiers that are sequentially arranged, and each of the original segment identifiers that are sequentially arranged corresponds to one node or link on the packet forwarding path. The method further includes comparing by the network device a plurality of successively adjacent original segment identifiers in the original segment list, to generate a plurality of successively adjacent compressed segment identifiers, where a length of each compressed segment identifier is less than a length of a corresponding original segment identifier, and generating by the network device a compressed segment list, where the compressed segment list includes a plurality of compressed segment identifiers, and the compressed segment list is used to forward a packet along the packet forwarding path.

公开(公告)号：US11805046B2

公开(公告)日：2023-10-31

申请号：US17231849

申请日：2021-04-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huaimo Chen ,  Zhenbin Li

IPC: H04L45/02 ,  H04L45/12 ,  H04L45/24 ,  H04L45/44 ,  H04L45/741 ,  H04L41/0803

CPC classification number: H04L45/04 ,  H04L41/0803 ,  H04L45/123 ,  H04L45/24 ,  H04L45/44 ,  H04L45/741

Abstract: A method for extending Border Gateway Protocol (BGP) to change multiple route attributes at a time. The method includes receiving a BGP wide community container that includes an indication that multiple route attributes can be changed at a time, a one or more route conditions, and actions to perform on the multiple route attributes when the one or more route conditions are met. The method determines whether the route conditions are satisfied. The method performs the actions specified in the BGP wide community container on the multiple route attributes when the one or more route conditions are satisfied.

公开(公告)号：US11799688B2

公开(公告)日：2023-10-24

申请号：US17106931

申请日：2020-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Penghui Mi ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L12/46 ,  H04L45/02 ,  H04L45/00 ,  H04L45/50

CPC classification number: H04L12/4675 ,  H04L45/02 ,  H04L45/04 ,  H04L45/34 ,  H04L45/507

Abstract: In a method for managing a VPN, a routing device establishes a BMP session with a BMP server. The routing device allocates a VPN label associated with a VPN instance, wherein the VPN instance is used for communication between the routing device and another routing device. Then, the routing device sends, to the BMP server, a BMP message that carries the VPN label. Because the routing device sends the VPN label through the BMP message, the routing device does not need to establish a BGP peer relationship with the BMP server to send the VPN label.

公开(公告)号：US20230283554A1

公开(公告)日：2023-09-07

申请号：US18315166

申请日：2023-05-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuesong Geng ,  Zhenbin Li ,  Jingrong Xie ,  Shuying Liu

IPC: H04L45/741 ,  H04L45/745 ,  H04L45/02

CPC classification number: H04L45/741 ,  H04L45/745 ,  H04L45/04

Abstract: A first network device receives a BIER packet sent by a second network device, where the BIER packet includes an IPv6 header, a BIER header, and a multicast packet, a destination address of the IPv6 header or a first field of the BIER header carries a service identifier, and the service identifier identifies a virtual private network VPN instance. The first network device determines a VRF table based on the service identifier and a first correspondence, where the first correspondence includes a correspondence between the service identifier and the VRF table. The first network device sends the multicast packet to a first CE device in the VRF table based on the VRF table.

公开(公告)号：US11588730B2

公开(公告)日：2023-02-21

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: G06F15/16 ,  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.

公开(公告)号：US20220078114A1

公开(公告)日：2022-03-10

申请号：US17527555

申请日：2021-11-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shuping Peng ,  Zhenbin Li

IPC: H04L12/749 ,  H04L12/721 ,  H04L12/723

Abstract: A method for providing a service for a traffic flow includes a network device receives a first packet; and when a packet feature of the first packet matches a packet feature of the traffic flow, the network device encapsulates an indication identifier of the traffic flow into the first packet to obtain a second packet, and sends the second packet. The second packet is an Internet Protocol (IP) version 6 (IPv6) packet or a Multiprotocol Label Switching MPLS packet. The indication identifier indicates the service provided for the traffic flow.