公开(公告)号：US12218820B2

公开(公告)日：2025-02-04

申请号：US17895241

申请日：2022-08-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenyan Li ,  Haibo Wang ,  Lili Wang

IPC: H04L45/02

Abstract: Embodiments of this application relate to the communication field, and disclose a method, a device, and a system for transmitting a node identifier, to reduce a limitation on delivery of an SR POLICY route and improve network performance The method includes: A forwarding device sends a node identifier to a controller. The forwarding device receives a first SR POLICY route from the controller, where a target attribute of the first SR POLICY route is the node identifier. The forwarding device determines that the node identifier matches the target attribute of the first SR POLICY route, and forwards a traffic packet according to the first SR POLICY route.

公开(公告)号：US20240348476A1

公开(公告)日：2024-10-17

申请号：US18757058

申请日：2024-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenbin Li ,  Shaowei Liu ,  Shuanglong Chen ,  Jun Li ,  Haibo Wang

IPC: H04L12/46 ,  H04L45/741

CPC classification number: H04L12/4633 ,  H04L45/741

Abstract: This application discloses a VXLAN packet transmission method, a network device, and a system. After receiving a first packet, a first network device obtains a VNI corresponding to the first packet. The first network device encapsulates the VNI in an IPV6 header by encapsulating the IPV6 header in the first packet, to obtain a second packet. The first network device sends the second packet to a second network device, so that the second network device forwards the packet based on the VNI included in the IPV6 header. In this application, the IPV6 header is used to carry the VNI, and no additional UDP header needs to be encapsulated to carry the VNI.

公开(公告)号：US20240323115A1

公开(公告)日：2024-09-26

申请号：US18731632

申请日：2024-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chongyang Hu ,  Haibo Wang

IPC: H04L45/28 ,  H04L45/18 ,  H04L45/741 ,  H04L45/745 ,  H04L101/622

CPC classification number: H04L45/28 ,  H04L45/18 ,  H04L45/741 ,  H04L45/745 ,  H04L2101/622

Abstract: In a loop avoidance communications method, a first provider edge (PE) device sends a first identifier to a second PE device through a first interface; the first PE device receives, from the second PE through the first interface, a data packet including the first identifier. Then, the first PE device determines that a second interface associated with the first identifier is in a faulty state. In response to determining that the second interface is in the faulty state, the first PE device avoids sending the data packet to the second PE device through the first interface. The first PE device connects to a customer edge (CE) device using the second interface.

公开(公告)号：US12074786B2

公开(公告)日：2024-08-27

申请号：US18069587

申请日：2022-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiwen Wu ,  Haibo Wang ,  Lili Wang ,  Lei Li

IPC: H04L45/28 ,  H04L45/00 ,  H04L45/748

CPC classification number: H04L45/28 ,  H04L45/566 ,  H04L45/748

Abstract: A packet advertisement method is implemented by a first network device. The packet advertisement method includes the first network device sending a first packet to a second network device advertising a route to the second network device. The first network device receives a second packet from the second network device in response to a first packet error. The second packet includes first indication information indicating the first packet error. The first network device determines, based on the first indication information, a route advertisement policy of a feature included in the first packet.

公开(公告)号：US12068955B2

公开(公告)日：2024-08-20

申请号：US17502466

申请日：2021-10-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingjian He ,  Haibo Wang

IPC: H04L45/74

CPC classification number: H04L45/74

Abstract: A method for controlling traffic forwarding includes: A control device receives a first packet sent by a first network device, where the first packet includes a first service packet. A destination of the first packet is the control device, a destination of the first service packet is first user equipment, and the first user equipment is connected to a network by using a second network device. Then, the control device determines a first forwarding policy based on the first packet and a first routing entry, where the first forwarding policy is used to guide forwarding of a first data flow to which the first service packet belongs. In addition, the control device sends the first forwarding policy to the first network device.

公开(公告)号：US12068887B2

公开(公告)日：2024-08-20

申请号：US17466517

申请日：2021-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Gang Yan

IPC: H04L12/46 ,  H04L45/74

CPC classification number: H04L12/4641 ,  H04L45/74

Abstract: A data transmission method includes sending, by a third network device, a first route to a first network device based on a fact that the first network device is a first-mode neighbor of the third network device or based on a request received from the first network device, and forwarding, by the first network device based on the first route, a packet to be sent to a second user-side device connected to a second network device.

公开(公告)号：US12034631B2

公开(公告)日：2024-07-09

申请号：US17136939

申请日：2020-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chongyang Hu ,  Haibo Wang

IPC: H04L45/18 ,  H04L45/28 ,  H04L45/741 ,  H04L45/745 ,  H04L101/622

CPC classification number: H04L45/28 ,  H04L45/18 ,  H04L45/741 ,  H04L45/745 ,  H04L2101/622

Abstract: A loop avoidance communications method, where a first provider edge (PE) device sends a first identifier to a second PE device through a first interface, the first PE device receives, through the first interface, a data packet from the second PE device including the first identifier. Then, the first PE device determines that a second interface associated with the first identifier is in a faulty state. In response to the determining that the second interface is in the faulty state, the first PE device avoids sending the data packet to the second PE device through the first interface, where the first PE device connects to a customer edge (CE) device using the second interface.

公开(公告)号：US20240097940A1

公开(公告)日：2024-03-21

申请号：US18478497

申请日：2023-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Xun Hu ,  Rongrong Hua ,  Tong Zhu

IPC: H04L12/46 ,  H04L45/00 ,  H04L45/745

CPC classification number: H04L12/4675 ,  H04L45/22 ,  H04L45/566 ,  H04L45/745

Abstract: A packet transmission method, device, and system are disclosed, and pertain to the field of network technologies. The system includes a first network device in a VPLS network and a second network device in a VPWS network. The first network device determines, based on a destination address carried in a received first packet, a virtual port corresponding to the destination address in a VPLS instance of the first network device, and sends the first packet to a second VPWS instance in the second network device based on the virtual port, where the virtual port is used to indicate a first VPWS instance in the first network device, and the second VPWS instance and the first VPWS instance are VPWS instances used to bear a same service.

公开(公告)号：US11936551B2

公开(公告)日：2024-03-19

申请号：US17471571

申请日：2021-09-10

Applicant: Huawei Technologies Co., Ltd.

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

IPC: G06F15/16 ,  H04L45/00 ,  H04L45/02 ,  H04L45/021 ,  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：US20230344751A1

公开(公告)日：2023-10-26

申请号：US18342368

申请日：2023-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Haibo Wang

IPC: H04L45/00 ,  H04L45/02

CPC classification number: H04L45/20 ,  H04L45/02

Abstract: A first network device obtains a first route, where a first route prefix of the first route includes an identifier of a route advertiser. The first network device generates a first route entry based on the first route. The first network device obtains a second route, where the second route includes a second route prefix and the identifier of the route advertiser. The first network device generates a second route entry based on the identifier of the route advertiser and the second route prefix, to associate the first route entry with the second route entry.