公开(公告)号：US12120023B2

公开(公告)日：2024-10-15

申请号：US18067232

申请日：2022-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jing Hu ,  Wei Yi ,  Jingrong Xie ,  Ju Wang ,  Ting Hua

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

CPC classification number: H04L45/566 ,  H04L12/4633 ,  H04L45/745

Abstract: A bit index explicit replication (BIER) operations, administration, and maintenance (OAM) detection method includes a bit forwarding ingress router (BFIR) obtaining a detection request packet based on a first BIER OAM packet, and sending the detection request packet to at least one bit forwarding egress router BFER. The detection request packet includes a first packet and a first packet header. The first packet is a packet obtained by encapsulating the first BIER OAM packet. The first packet header includes a bit string, and the bit string indicates the at least one bit forwarding egress router BFER that is to be measured.

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.

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：US20230155933A1

公开(公告)日：2023-05-18

申请号：US18067232

申请日：2022-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jing Hu ,  Wei Yi ,  Jingrong Xie ,  Ju Wang ,  Ting Hua

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

CPC classification number: H04L45/566 ,  H04L12/4633 ,  H04L45/745

Abstract: A bit index explicit replication (BIER) operations, administration, and maintenance (OAM) detection method includes a bit forwarding ingress router (BFIR) obtaining a detection request packet based on a first BIER OAM packet, and sending the detection request packet to at least one bit forwarding egress router BFER. The detection request packet includes a first packet and a first packet header. The first packet is a packet obtained by encapsulating the first BIER OAM packet. The first packet header includes a bit string, and the bit string indicates the at least one bit forwarding egress router BFER that is to be measured.

公开(公告)号：US11558341B2

公开(公告)日：2023-01-17

申请号：US17216395

申请日：2021-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianjian Shi ,  Ting Hua ,  Yongkang Zhang

IPC: H04L61/2592 ,  H04L101/65

Abstract: A method for obtaining segment routing over Internet Protocol version 6 data plane (SRv6) tunnel information of Internet Protocol version 6 segment routing, including sending, by a first network device, a request packet to a second network device, where the request packet is used to request to detect reachability of an SRv6 tunnel and obtain SRv6 tunnel information of the second network device, and the second network device is a network device on the SRv6 tunnel, receiving, by the first network device, a response packet from the second network device, where the response packet includes the SRv6 tunnel information of the second network device, and obtaining, by the first network device, the SRv6 tunnel information of the second network device based on the response packet.

公开(公告)号：US20210218704A1

公开(公告)日：2021-07-15

申请号：US17216395

申请日：2021-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianjian Shi ,  Ting Hua ,  Yongkang Zhang

IPC: H04L29/12

Abstract: This application discloses a method for obtaining SRv6 tunnel information of internet protocol version 6 segment routing, including: sending, by a first network device, a request packet to a second network device, where the request packet is used to request to detect reachability of an SRv6 tunnel and obtain SRv6 tunnel information of the second network device, and the second network device is a network device on the SRv6 tunnel; receiving, by the first network device, a response packet from the second network device, where the response packet includes the SRv6 tunnel information of the second network device; and obtaining, by the first network device, the SRv6 tunnel information of the second network device based on the response packet. This helps obtain the SRv6 tunnel information, and helps maintain and manage the SRv6 tunnel.