公开(公告)号：US20230208757A1

公开(公告)日：2023-06-29

申请号：US18175431

申请日：2023-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hu Wang ,  Ranxiao Zhao ,  Ting Hua ,  Zuqing Li

IPC: H04L45/00 ,  H04L45/74 ,  H04L12/46

CPC classification number: H04L45/566 ,  H04L45/74 ,  H04L12/4641

Abstract: Embodiments of this application provide a packet transmission method, apparatus, and system. A first network device sends a probe packet to a second network device, the probe packet includes an identifier of the first network device, and the identifier of the first network device is used to indicate the second network device to add the identifier of the first network device to a destination address in a response packet of the probe packet; and receives the response packet from the second network device, where the destination address in the response packet is the identifier of the first network device; or receives an updated response packet from a third network device, where a destination address in the updated response packet is the identifier of the first network device. Both the third network device and the first network device are connected to a same user-side network device.

公开(公告)号：US20240223496A1

公开(公告)日：2024-07-04

申请号：US18406468

申请日：2024-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ranxiao Zhao ,  Bin Xie ,  Yihu Liu ,  Ning Gao

IPC: H04L45/00 ,  H04L45/74

CPC classification number: H04L45/20 ,  H04L45/74

Abstract: This application discloses a packet transmission method, apparatus, and system, a network device, and a storage medium, and relates to the field of communication technologies. The method includes: A first network device receives an IP packet, and adds indication information to the IP packet and sends the IP packet. The indication information indicates to add processing information to an error packet corresponding to the IP packet. The processing information indicates a manner for processing the error packet. The error packet is generated by a second network device when the IP packet reaches a corresponding maximum hop count. According to the method, the processing information indicating the manner for processing the error packet can be carried in the error packet corresponding to the IP packet, so that the first network device can process the error packet based on the processing information.

公开(公告)号：US11265241B2

公开(公告)日：2022-03-01

申请号：US16718650

申请日：2019-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qing Miao ,  Yongkang Zhang ,  Ranxiao Zhao ,  Ting Hua ,  Yanfeng Zhang

IPC: H04L12/723 ,  H04L12/26 ,  H04L12/751 ,  H04L12/733 ,  H04L12/721 ,  H04L45/50 ,  H04L43/10 ,  H04L45/02 ,  H04L45/00

Abstract: A path detection method and apparatus for forwarding at least two layers of labels includes generating, by a first network device, a first request packet used for path detection, where the first request packet includes a label stack and a time to live (TTL), and an initial quantity of layers of the label stack matches an initial value of the TTL, and sending the first request packet, where the first request packet instructs a second network device to send a first response packet to the first network device when the TTL is 0 after being reduced by 1, and the first response packet reaches the first network device through an internet protocol route.