公开(公告)号：US20230300065A1

公开(公告)日：2023-09-21

申请号：US18320536

申请日：2023-05-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lin DONG ,  Xinjun CHEN ,  Yaqun XIAO ,  Zhenxing WANG ,  Sheng FANG

IPC: H04L45/24 ,  H04L45/28 ,  H04L45/02 ,  H04L12/66

CPC classification number: H04L45/24 ,  H04L45/28 ,  H04L45/04 ,  H04L12/66

Abstract: A method for advertising a processing capability of a network device, a system, and a network device are disclosed, and relate to the field of communication technologies. The method is performed by a network device, and includes: generating a advertisement message including indication information, where the indication information is used to indicate a processing capability of the network device, the processing capability of the network device includes a processing capability of ignoring secondary path information included in a packet when the network device serves as a network device on a primary path for forwarding the packet and receives the packet including primary path information and the secondary path information, and the secondary path information is used to indicate one or more secondary paths for forwarding the packet when the primary path is unavailable.

公开(公告)号：US20230018292A1

公开(公告)日：2023-01-19

申请号：US17930864

申请日：2022-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei BAO ,  Rui GU ,  Juhua XU ,  Xinjun CHEN ,  Yaqun XIAO ,  Sheng FANG ,  Jie ZHANG

IPC: H04L45/302 ,  H04L45/02 ,  H04L47/80 ,  H04L47/76

Abstract: The application discloses a packet transmission method, an apparatus, and a network device. In an embodiment, a first network device obtains identification information corresponding to a service flow, and reserves a forwarding resource based on the identification information. The forwarding resource is used by the first network device to forward the service flow to a second network device. The first network device further sends a packet including the identification information to the second network device, and the second network device reserves a corresponding forwarding resource based on the identification information in the packet. Network devices perform resource reservation hop by hop by sending the packet including the identification information, and do not need to perform resource reservation based on a transmission path that is pre-calculated and planned, so that load of the network device or a controller is reduced, and resource reservation flexibility is improved.

公开(公告)号：US20230388177A1

公开(公告)日：2023-11-30

申请号：US18226967

申请日：2023-07-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiyong LI ,  Yaqun XIAO ,  Jianwu HAO ,  Sheng FANG ,  Li FAN

IPC: H04L41/0631 ,  H04L43/0823 ,  H04L45/00

CPC classification number: H04L41/0631 ,  H04L43/0823 ,  H04L45/34

Abstract: A fault detection method, a network device, and a system are provided. The method includes: After a first network device receives, through a first forwarding path in an SR policy, a BFD packet that is sent by a second network device and that includes indication information of a SID list, the first network device determines, based on the indication information of the SID list, a second forwarding path that is reversely co-routed with the first forwarding path, and sends a response packet of the BFD packet to the second network device through the second forwarding path, so that the second network device can perform fault detection on the first forwarding path based on the response packet.

公开(公告)号：US20230208751A1

公开(公告)日：2023-06-29

申请号：US18178750

申请日：2023-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei BAO ,  Ting LIAO ,  Yaqun XIAO ,  Juhua XU ,  Juan ZHENG ,  Xinjun CHEN

IPC: H04L45/24 ,  H04L45/00 ,  H04L45/74

CPC classification number: H04L45/24 ,  H04L45/38 ,  H04L45/74

Abstract: A packet forwarding method, a system, an apparatus, and a network device are provided. The method is performed by a network device, and includes: obtaining first identification information of a first network resource required for forwarding first traffic to which a first packet belongs; determining a target port set based on the first identification information and a destination address of the first packet, where the target port set is associated with the first network resource; and selecting a first port from the target port set to forward the first packet.

公开(公告)号：US20230095244A1

公开(公告)日：2023-03-30

申请号：US17890710

申请日：2022-08-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaqun XIAO ,  Huizhi WEN ,  Chuang CHEN ,  Rui GU ,  Jun QIU ,  Zhibo HU ,  Ting LIAO

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

Abstract: Embodiments of this application disclose a packet sending method, a device, and a system, so that a specified network device does not use a backup forwarding path to forward a packet, thereby reducing, to some extent, a technical problem such as network resource waste or network congestion caused by a loop problem. The method includes: A first network device obtains a first packet destined for a destination device; the first network device adds a first indication identifier to the first packet to generate a second packet, where the first indication identifier is used to indicate a second network device to avoid using a backup forwarding path from the second network device to the destination device to send the second packet to the destination device; and the first network device sends the second packet to the second network device by using a first forwarding path.

公开(公告)号：US20220407802A1

公开(公告)日：2022-12-22

申请号：US17893525

申请日：2022-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaqun XIAO ,  Li FAN

IPC: H04L45/28 ,  H04L45/00

Abstract: An identifier can indicate whether local protection is allowed is added to a packet. In a process in which a packet that carries a protection flag is transmitted along a primary path, if a node along the path determines that the primary path is faulty, but the protection flag indicates that local switching to a protection path is not allowed, the node along the path does not perform local protection, so that the packet is not switched by the node along the path to the protection path. This prevents the packet from passing through a protection path with the node along the path as an ingress when the primary path is faulty, helps traffic on the primary path to be switched to an end-to-end protection path in time, and helps a packet sending side to switch the traffic on the primary path to the end-to-end protection path in time.