公开(公告)号：US20220141153A1

公开(公告)日：2022-05-05

申请号：US17568962

申请日：2022-01-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaokun ZHANG ,  Yun ZHU

IPC: H04L47/78 ,  H04L47/762 ,  H04L47/70 ,  H04L47/80

Abstract: After a first broadband access server (BAS) receives a connection request of a first terminal, when a quantity of remaining session resources of the first BAS is less than or equal to a first threshold, the first BAS sends the connection request to a second BAS, so that the first terminal accesses a network via the second BAS, wherein the second BAS is determined by the first BAS by using a BAS pool communication protocol.

公开(公告)号：US20210297433A1

公开(公告)日：2021-09-23

申请号：US17337751

申请日：2021-06-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenxing YANG ,  Hailin WANG ,  Yaokun ZHANG

IPC: H04L29/06 ,  H04L12/46 ,  H04L29/12

Abstract: A method for preventing a network attack, including: receiving, by a first network node in a Ethernet virtual private network (EVPN), a first packet, where the first packet carries a first media access control (MAC) address, and the first MAC address is a source MAC address of the first packet; and determining first MAC entry information, where the first MAC entry information includes a correspondence between the first MAC address, an identifier of the first MAC address, and egress port information of the first MAC address, and the identifier of the first MAC address is used to indicate that an egress port corresponding to the first MAC address is a trusted port. This method can reduce a risk that the EVPN breaks down caused by attacking the EVPN by an attacker.

公开(公告)号：US20160191336A1

公开(公告)日：2016-06-30

申请号：US15061757

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaokun ZHANG

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

CPC classification number: H04L41/147 ,  H04L41/0604 ,  H04L41/0654 ,  H04L41/0695 ,  H04L41/142 ,  H04L41/145 ,  H04L41/16 ,  H04L41/5009 ,  H04L43/16 ,  H04L47/127

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.

Abstract translation: 本申请涉及一种预测网络性能的方法和装置，其中该方法包括：获得链路的M个性能参数数据; 根据M性能参数数据计算链路网络性能的云模型数字特征; 根据云模型数字特征计算链路网络性能的N个预测性能参数数据; 并且如果在N个预测性能参数数据中存在超过预设上限值的数据，则提高所述链路具有超过限制的风险的预测报警，其中M和N是预设的正整数。 根据链路网络性能的实时监控数据分析网络性能的变化趋势，以预测未来性能参数数据，并根据预测确定是否提高报警并执行保护倒换。

公开(公告)号：US20200274793A1

公开(公告)日：2020-08-27

申请号：US15931138

申请日：2020-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaokun ZHANG ,  Juan LI

IPC: H04L12/703 ,  H04L12/723 ,  H04L12/26 ,  H04L12/66

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：US20220255831A1

公开(公告)日：2022-08-11

申请号：US17730951

申请日：2022-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lina WANG ,  Yaokun ZHANG

IPC: H04L43/10 ,  H04L41/0893 ,  H04L41/12 ,  H04L43/0811

Abstract: Embodiments of this application disclose a method and apparatus for detecting a link status, and pertain to the communications field. The method includes: A first network device detects a link status of a bundled physical link. The bundled physical link is a link between the first network device and a second network device. The first network device determines N logical links based on link information about the bundled physical link. The N logical links are carried on the bundled physical link, and N is an integer greater than or equal to 1. The first network device skips detecting link statuses of the N logical links, and sets the link statuses of the N logical links to the link status of the bundled physical link. According to this application, occupied computing resources of a network device and occupied network resources of a communications network can be reduced.

公开(公告)号：US20220124024A1

公开(公告)日：2022-04-21

申请号：US17562101

申请日：2021-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun LIU ,  Yaokun ZHANG

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

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：US20210329529A1

公开(公告)日：2021-10-21

申请号：US17360926

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunxia SUN ,  Yaokun ZHANG ,  Hailin WANG

IPC: H04W40/12 ,  H04W40/24 ,  H04W24/08 ,  H04L12/851 ,  H04L29/12

Abstract: Embodiments of this application disclose a configuration method and a controller. The configuration method is applied to a network on which detection is performed by using the 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.