公开(公告)号：US10298464B2

公开(公告)日：2019-05-21

申请号：US15061757

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaokun Zhang

IPC: H04L29/08 ,  H04L12/24 ,  H04L12/26 ,  H04L12/801

Abstract: The present application relates to a method and apparatus of predicting network performance, wherein the method includes: obtaining M performance parameter data of a link; calculating a cloud model digital feature of network performance of the link according to the M performance parameter data; calculating N predicted performance parameter data of the network performance of the link according to the cloud model digital feature; and raising a prediction alarm that the link has a risk of exceeding a limit if there is data exceeding a preset upper limit value in the N predicted performance parameter data, wherein M and N are preset positive integers. A change trend of network performance is analyzed according to real-time monitored data of the network performance of the link to predict future performance parameter data, and whether an alarm is raised and protection switching is performed is determined based on the prediction.

公开(公告)号：US20170272358A1

公开(公告)日：2017-09-21

申请号：US15614057

申请日：2017-06-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaokun Zhang ,  Chunxia Sun

IPC: H04L12/703 ,  H04L12/707 ,  H04L12/24

CPC classification number: H04L45/28 ,  H04L41/0654 ,  H04L41/0816 ,  H04L45/22

Abstract: A method, a device, and a system for deferring a switchback. A first network device sends a query packet to a second network device, detects, according to the query packet, whether a route from the second network device to a destination device is available after receiving the query packet, and when it is available, the second network device sends a query response packet to the first network device in order to trigger the first network device to switch back from a secondary route to a primary route. The technical solution provided reduces a wait-to-restore time of the switchback, ensures that service data transmitted from the first network device to the second network device can be transmitted to the destination device, and facilitates smooth transmission of the service data.

公开(公告)号：US12224930B2

公开(公告)日：2025-02-11

申请号：US17562101

申请日：2021-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Liu ,  Yaokun Zhang

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/28 ,  H04L45/42

Abstract: This application discloses a method and apparatus for implementing entry backup. When a first network device needs to back up information about a first entry stored in the first network device to a second network device, the first network device generates a first BGP message that includes first entry information, and sends the first BGP message to the second network device, where the first BGP message is used to advertise a newly defined entry backup route to the second network device, or the first BGP message includes an extended community attribute. After receiving the first BGP message, the second network device may obtain a second entry based on the first BGP message, and store information about the second entry, where the second entry is a backup entry of the first entry.

公开(公告)号：US20240430198A1

公开(公告)日：2024-12-26

申请号：US18824817

申请日：2024-09-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaokun Zhang ,  Ruyue Yuan ,  Jingrong Xie

IPC: H04L45/745 ,  H04L45/02 ,  H04L45/28

Abstract: A method and an apparatus for discovering a root node, implement dual-root protection in a process of transmitting a multicast data packet over an automatic multicast tunneling (AMT) network, so as to avoid transmission interruption and improve network stability. In the method, a first network device receives a first packet from a multicast source, where the first packet is used to discover a root node; and the first network device sends a response packet for the first packet to the multicast source, where the response packet for the first packet includes address information of the root node, and the root node includes the first network device and a second network device.

公开(公告)号：US11882059B2

公开(公告)日：2024-01-23

申请号：US17731927

申请日：2022-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaokun Zhang ,  Boran Fan

IPC: H04L49/55

CPC classification number: H04L49/55

Abstract: A port selection method applied to a first network device and a second network device includes determining that a port status of a first port that is in the first network device and that is used for dual-homing access can switch from a first state to an UP state; receiving a port status of a second port that is in the second network device and that is used for dual-homing access; and selecting, based on the port status of the first port and the port status of the second port, a port to be switched to the UP state from the first port and the second port.

公开(公告)号：US20230336462A1

公开(公告)日：2023-10-19

申请号：US18298635

申请日：2023-04-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaokun Zhang ,  Lei Wang ,  Jingrong Xie

IPC: H04L45/00 ,  H04L45/02

CPC classification number: H04L45/26 ,  H04L45/02

Abstract: A first network device receives a first packet that includes an address of the second network device. The first network device sends, to the second network device, a first detection packet used to determine that a route is reachable. The first network device determines, when a response packet of the first detection packet is not received, that the route to the second network device is unreachable.

公开(公告)号：US11463348B2

公开(公告)日：2022-10-04

申请号：US15931138

申请日：2020-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaokun Zhang ,  Juan Li

IPC: H04L45/28 ,  H04L12/66 ,  H04L43/0811 ,  H04L43/12 ,  H04L45/50

Abstract: A link fault detection method includes sending, by a first network device, data traffic to a second network device by using a plurality of first label switched paths (LSPs). The method also includes determining, by using each of the plurality of first LSPs within a preset period, whether a first link detection packet from the second network device is received. The method further includes determining an LSP of the plurality of first LSPs for which the first link detection packet is not received as a first faulty LSP. The method additionally includes calculating a first unavailability of the plurality of first LSPs based on the first faulty LSP. The method also includes triggering the plurality of first LSPs to stop transmitting the data traffic according to the first unavailability of the plurality of first LSPs.

公开(公告)号：US20210011813A1

公开(公告)日：2021-01-14

申请号：US17036705

申请日：2020-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoping Zhang ,  Yaokun Zhang ,  Quanxi Zhao

IPC: G06F11/14 ,  H04W12/00 ,  H04W24/04 ,  H04W36/30 ,  H04W84/18

Abstract: This application disclose an information backup method and a related device, to ensure continuity of a user service. The method is applied to a communications system including a primary device, a secondary device, and a cloud device, and the method is performed by the primary device. The method includes: sending a first identity notification to the cloud device, where the first identity notification is a notification indicating that the primary device has a primary device identity; and uploading obtained first user information to the cloud device when determining that a communication status of the cloud device is normal, where the first user information is stored by the cloud device and provided to the secondary device, and the first user information is to-be-backed-up information of user equipment that gets online from the primary device when the communication status of the cloud device is normal.

公开(公告)号：US11943141B2

公开(公告)日：2024-03-26

申请号：US17451514

申请日：2021-10-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Jiang ,  Yaokun Zhang

IPC: H04L45/745 ,  H04L101/622

CPC classification number: H04L45/745 ,  H04L2101/622

Abstract: A method includes: A control plane of a network device obtains a first MAC entry, and sends the first MAC entry and a first identifier to a forwarding plane of the network device. The forwarding plane stores the first MAC entry in a first MAC table, and a state of the first MAC entry is set to a valid state. The forwarding plane changes the state of the first MAC entry to an invalid state after first preset duration elapses and when a first preset condition is met, and sets invalid duration for the first MAC entry. The first preset condition is that the forwarding plane does not receive traffic corresponding to a first MAC address within the first preset duration after storing the first MAC entry.

公开(公告)号：US11838846B2

公开(公告)日：2023-12-05

申请号：US17360926

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunxia Sun ,  Yaokun Zhang ,  Hailin Wang

IPC: H04L47/2483 ,  H04W40/24 ,  H04W40/12 ,  H04L61/103 ,  H04W24/08

CPC classification number: H04W40/12 ,  H04L47/2483 ,  H04L61/103 ,  H04W24/08 ,  H04W40/24

Abstract: A configuration method and a controller are provided. The configuration method is applied to a network on which detection is performed by using the two-way active measurement protocol (TWAMP), and may include: receiving, by a controller, a request packet sent by an ingress network device, where the ingress network device is a network device through which a service flow flows into the network, and the request packet includes a destination IP address of the service flow; and determining, by the controller, based on the destination IP address, that the service flow is an X2 service flow, and sending configuration information for TWAMP detection to the ingress network device and an egress network device, where the egress network device is a network device through which the service flow flows out of the network.