公开(公告)号：US20240244002A1

公开(公告)日：2024-07-18

申请号：US18619600

申请日：2024-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Ge ,  Haibo Wang ,  Lili Wang ,  Futai Xu

IPC: H04L45/76 ,  H04L12/46 ,  H04L45/00 ,  H04L45/50

CPC classification number: H04L45/76 ,  H04L12/4641 ,  H04L45/34 ,  H04L45/50

Abstract: This application discloses a route advertisement method, a packet forwarding method, a device, and a system. A first network device obtains a first VPN route and a second VPN route that have a same route prefix and a same route distinguisher but different VPN identifiers and different next hops. The first network device allocates a third VPN identifier to the first VPN route and the second VPN route, and stores, on a forwarding plane, a first correspondence between the third VPN identifier and a first VPN identifier that is included in the first VPN route and a second correspondence between the third VPN identifier and a second VPN identifier that is included in the second VPN route. The first VPN route and the second VPN route that belong to a same VPN can form fast reroute or load balancing.

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：US11956149B2

公开(公告)日：2024-04-09

申请号：US17474757

申请日：2021-09-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/74

CPC classification number: H04L45/54 ,  H04L45/02 ,  H04L45/22 ,  H04L45/74

Abstract: This application provides a peer relationship management method and apparatus, a device, and a storage medium, and belongs to the field of network technologies. In this application, when a peer relationship between a first routing device and a second routing device is interrupted, routing entries received from the second routing device are not deleted. Services may be still processed, within a time range from a time at which the peer relationship is interrupted to a time at which the peer relationship is reestablished, by using the routing entries received from the second routing device.

公开(公告)号：US11863446B2

公开(公告)日：2024-01-02

申请号：US18190114

申请日：2023-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingjian He ,  Haibo Wang ,  Zhibo Hu

IPC: G06F15/173 ,  H04L45/741 ,  H04L45/00 ,  H04L45/42

CPC classification number: H04L45/741 ,  H04L45/42 ,  H04L45/566

Abstract: A user group-based packet forwarding method and a device are provided. The method includes: a first network device receives a first service packet sent by first user equipment, where the first service packet includes information about the first user equipment; the first network device determines whether the first network device includes a first user group corresponding to the information about the first user equipment; and the first network device determines, based on a determining result, a value of first group information, generates a first segment routing over internet protocol version 6 (SRv6) packet, and sends the first SRv6 packet to a second network device, where the first SRv6 packet includes the first group information and the first service packet, and the first group information indicates an interworking policy that is determined based on the first user group.

公开(公告)号：US11855876B2

公开(公告)日：2023-12-26

申请号：US17935078

申请日：2022-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haijun Xu ,  Shunwan Zhuang ,  Haibo Wang

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

CPC classification number: H04L45/04 ,  H04L12/66 ,  H04L45/02 ,  H04L45/128 ,  H04L45/18 ,  H04L45/28 ,  H04L65/1069 ,  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.

公开(公告)号：US20230370374A1

公开(公告)日：2023-11-16

申请号：US18196866

申请日：2023-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Donglei Pang ,  Cheng Sheng ,  Haibo Wang ,  Fanghong Duan ,  Gang Yan ,  Xuesong Geng

IPC: H04L45/741 ,  H04L12/28 ,  H04L12/46 ,  H04L45/02

CPC classification number: H04L45/741 ,  H04L12/2854 ,  H04L12/4633 ,  H04L45/04

Abstract: A multicast communication method is applied to a software-defined wide area network SD-WAN. In the multicast communication method, a bit index explicit replication (Bit Index Explicit Replication, BIER) capability is deployed on a site device in the SD-WAN, a site device through which a multicast packet needs to pass is indicated by a bit index explicit replication IPv6 encapsulation (Bit Index Explicit Replication IPv6 encapsulation, BIERv6) header in the multicast packet, and a multicast distribution tree does not need to be constructed. In addition, the multicast packet is forwarded through an SD-WAN tunnel between site devices, and an intermediate node does not need to sense a multicast service. In this way, a network device has a small quantity of multicast entries and the multicast entries are converged quickly, ensuring normal running of the multicast service.

公开(公告)号：US11799756B2

公开(公告)日：2023-10-24

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

CPC classification number: H04L45/04 ,  H04L45/02 ,  H04L45/08 ,  H04L63/126

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.

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：US20230336458A1

公开(公告)日：2023-10-19

申请号：US18338820

申请日：2023-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Ge ,  Haibo Wang ,  Lili Wang ,  Lei Li

IPC: H04L45/741 ,  H04L45/02

CPC classification number: H04L45/04 ,  H04L45/741

Abstract: When obtaining a first Border Gateway Protocol (BGP) route, a first network device may directly send the first BGP route to a second network device without recursing the first BGP route. Alternatively, the first network device recurses the first BGP route. The first network device still sends the first BGP route to the second network device when the first BGP route fails to be recursed. That is, regardless of whether the first network device performs recursion or if the recursion fails, the first network device can forward the received first BGP route to the second network device.