公开(公告)号：US20240356839A1

公开(公告)日：2024-10-24

申请号：US18762115

申请日：2024-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ka ZHANG ,  Bin WANG ,  Juan ZHENG ,  Li FAN ,  Sheng FANG

IPC: H04L45/00 ,  H04L45/24 ,  H04L45/745

CPC classification number: H04L45/34 ,  H04L45/24 ,  H04L45/745

Abstract: This application discloses a route selection method and a related device. A control entity determines first metric information of a first segment routing (SR) path, generates a first border gateway protocol (BGP) update message including the first metric information, and sends the first BGP update message to an ingress node of the first SR path, where the first metric information represents quality of the first SR path, the first metric information is used for route selection on a plurality of paths, each of the plurality of paths has a same IP prefix of a destination node, and the plurality of paths include the first SR path. According to the method, the control entity can send, to the ingress node of the SR path by using the BGP update message, the metric information that represents the quality of the SR path.

公开(公告)号：US20250030626A1

公开(公告)日：2025-01-23

申请号：US18907728

申请日：2024-10-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weihan CHEN ,  Ka ZHANG

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/28

Abstract: This application provides a transmission path determining method and apparatus. The method includes: A first network device obtains an SR policy, where the SR policy includes active path information and backup path information. The active path information includes a first update threshold and at least one first segment list, the first segment list indicates an SR path for traffic from the first network device to a second network device, and the first update threshold indicates a threshold used to update an SR path from the first network device to the second network device. When transmitting the traffic through a path indicated by the active path information, the first network device determines, based on the first update threshold and transmission performance of an SR path indicated by each first segment list, whether quality of service of the current transmission path meets an expectation.

公开(公告)号：US20240056392A1

公开(公告)日：2024-02-15

申请号：US18495885

申请日：2023-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ka ZHANG ,  Sheng FANG

IPC: H04L45/741 ,  H04L45/50 ,  H04L45/42

CPC classification number: H04L45/741 ,  H04L45/50 ,  H04L45/42

Abstract: Embodiments of this application provide a communication method and apparatus, so that packets of different services can be sent, based on an SR technology, on a same path specified by an SR policy. This avoids a problem that a great limitation exists in an implementation of dual-stack reconstruction, and improves communication efficiency. In the method, after receiving a first packet, a first network device forwards the first packet to a second network device based on a path specified by an SR policy. A destination endpoint specified by the SR policy is the second network device. An identifier of the destination endpoint includes a first IP address of the second network device and a second IP address of the second network device.

公开(公告)号：US20230216786A1

公开(公告)日：2023-07-06

申请号：US18183780

申请日：2023-03-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Linlin MA ,  Guoqi XU ,  Zhibo HU ,  Ka ZHANG

IPC: H04L45/00

CPC classification number: H04L45/34

Abstract: This application provides a method for forwarding a service packet, a method for sending an SR policy, a device, and a system, and belongs to the field of network technologies. In the solution provided in this application, a network device may forward, according to a first candidate path in an SR policy through a sub-interface corresponding to a first network slice, a service packet, and the first candidate path and a first identifier of a first network slice corresponding to the first candidate path are encapsulated in the service packet.

公开(公告)号：US20250062978A1

公开(公告)日：2025-02-20

申请号：US18936724

申请日：2024-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ka ZHANG ,  Zhibo HU ,  Cheng LI ,  Chenxi LI

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

Abstract: This application provides a packet processing method and a related device. An SR policy on a network device includes a segment list, endpoint information, and indication information, and the indication information indicates whether the segment list points to an endpoint indicated by the endpoint information in the SR policy. When receiving a service packet whose destination address matches the SR policy, the network device determines, based on the indication information in the SR policy, whether the segment list points to the endpoint of the SR policy, encapsulates the service packet based on a determining result, and forwards an encapsulated service packet according to an SR path determined based on the segment list.

公开(公告)号：US20230291681A1

公开(公告)日：2023-09-14

申请号：US18180262

申请日：2023-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ka ZHANG

IPC: H04L45/00 ,  H04L45/02

CPC classification number: H04L45/34 ,  H04L45/04

Abstract: A obtaining method and apparatus, a device, and a storage medium, and pertains to the field of communication technologies. The method includes: a first node obtains first measurement information and second measurement information, where the first measurement information is measurement information of a first SR path, the second measurement information is measurement information of a second SR path, the first SR path is an SR path from the first node to a second node, and the second SR path is an SR path from the second node to the first node; determines a bidirectional path detection result based on the first measurement information and the second measurement information; and sends a notification message to a controller, where the notification message carries the bidirectional path detection result.