公开(公告)号：US20170359253A1

公开(公告)日：2017-12-14

申请号：US15668484

申请日：2017-08-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peilin Yang ,  Hengcheng Zhang ,  Tao Han

IPC: H04L12/703 ,  H04L12/911 ,  H04L12/707 ,  H04L12/715

CPC classification number: H04L45/28 ,  H04L12/4641 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/0836 ,  H04L45/22 ,  H04L45/38 ,  H04L45/64 ,  H04L47/728 ,  H04L47/746

Abstract: A link protection method in a software-defined networking (SDN), a corresponding switching device and network controller, where the method includes receiving, by a first switching device in the SDN, first information from a network controller in the SDN and link protection information, where the first information establishes a communication link between the first switching device and a destination device, and the link protection information instructs the first switching device to proactively perform primary-to-secondary link switching when a link is faulty, establishing, by the first switching device, the communication link with the destination device according to the first information, and determining, by the first switching device according to the link protection information, that the first switching device proactively performs the primary-to-secondary link switching.

公开(公告)号：US10097530B2

公开(公告)日：2018-10-09

申请号：US15178770

申请日：2016-06-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peilin Yang ,  Tao Han

IPC: H04L12/24 ,  H04L29/06 ,  H04L29/14

Abstract: A security authentication method includes: receiving, by a control plane of a BFD device, a first BFD packet that is sent by a control plane of a peer BFD device; generating, by the control plane, a first token value according to the random nonce; sending the first token value to a data plane; receiving, by the data plane, a second BFD packet that is sent by a data plane of the peer BFD device, where the second BFD packet carries authentication information, and the authentication information includes a random nonce; and generating, by the data plane, a second token value according to the random nonce included in the authentication information and by using a calculation method the same as that of the control plane, and successfully authenticating, by the data plane, the second BFD packet if the first token value and the second token value are the same.

公开(公告)号：US20170302501A1

公开(公告)日：2017-10-19

申请号：US15638085

申请日：2017-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tijun Shi ,  Peilin Yang

IPC: H04L29/12 ,  H04L12/741

CPC classification number: H04L29/12009 ,  H04L12/4641 ,  H04L45/74 ,  H04L45/745 ,  H04L61/00 ,  H04L61/10

Abstract: A method, an apparatus, and a system for controlling sending of a MAC address forwarding table are provided. In the solution, when it is determined that a destination IP address is different from any IP address of a gateway to which a source virtual machine is attached, generation, according to an ARP request packet, a first MAC address forwarding table that is to be sent to the gateway is forbidden; and when it is determined that IP addresses of the gateway to which the source virtual machine is attached include an IP address that is the same as the destination IP address, a first MAC address forwarding table that is to be sent to the gateway is generated according to the ARP request packet, and the first MAC address forwarding table is sent to the gateway.

公开(公告)号：US09497450B2

公开(公告)日：2016-11-15

申请号：US14104616

申请日：2013-12-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenxiao Yu ,  Yinliang Hu ,  Peilin Yang

IPC: H04N7/18 ,  H04N17/00 ,  H04L12/26 ,  H04L12/24 ,  H04N21/61 ,  H04N21/6405 ,  H04N21/647

CPC classification number: H04N17/004 ,  H04L41/0677 ,  H04L43/0811 ,  H04L43/0829 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/6473

Abstract: A method, an apparatus, a system locate an IPTV fault, where the method includes: performing synchronized evaluation on a monitored IPTV video stream according to a synchronization message, obtaining multiple corresponding local upstream evaluation results; receiving an evaluation result report message sent by a downstream monitoring point, where the evaluation result report message includes a downstream evaluation result, an evaluation result identifier, and synchronization packet information; finding, according to the synchronization packet information and the evaluation result identifier in the evaluation result report message sent by the downstream monitoring point, an upstream evaluation result corresponding to the downstream evaluation result; comparing the downstream evaluation result with the upstream evaluation result, and performing fault locating according to a result of the comparison. The present disclosure implements IPTV fault locating, saves costs of manpower and material resources, and improves efficiency in fault locating.

Abstract translation: 一种方法，装置，系统定位IPTV故障，其中所述方法包括：根据同步消息对所监视的IPTV视频流执行同步评估，获得多个相应的本地上游评估结果; 接收由下游监测点发送的评估结果报告消息，其中所述评估结果报告消息包括下游评估结果，评估结果标识符和同步分组信息; 根据下游监控点发送的评估结果报告消息中的同步包信息和评估结果标识符，找到与下游评估结果对应的上游评估结果; 将下游评估结果与上游评估结果进行比较，根据比较结果进行故障定位。 本发明实施IPTV故障定位，节省人力物力资源成本，提高故障定位效率。

公开(公告)号：US20210006454A1

公开(公告)日：2021-01-07

申请号：US16931708

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhongyu Wang ,  Peilin Yang ,  Wenxiong Zhu

IPC: H04L12/24 ,  H04L12/751 ,  H04L12/26

Abstract: A method for processing a forwarding device fault, a device, and a controller are provided, and relate to the communications field. The method is as follows. An SNC receives a notification message sent by a first forwarding device, where the notification message includes a fault parameter of the first forwarding device, and the fault parameter includes a device identifier of the first forwarding device, a port identifier of a degraded port, and a degradation value of the port identified by the port identifier. The SNC determines, according to the device identifier and the port identifier, at least one forwarding path that passes through the port identified by the port identifier. The SNC also determines, according to the fault parameter of the first forwarding device and the fault parameters of other forwarding devices on one forwarding path, whether to update the forwarding path.

公开(公告)号：US20130238767A1

公开(公告)日：2013-09-12

申请号：US13871745

申请日：2013-04-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yingjie Gu ,  Peilin Yang ,  Ning Zong

IPC: H04L29/08

CPC classification number: H04L67/104 ,  H04L65/1069 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/607 ,  H04L67/06 ,  H04L67/1063 ,  H04L67/1074

Abstract: The present disclosure provides a method and system for downloading real-time streaming media in a peer-to-peer (P2P) network, belonging to the field of communications. The system of the present disclosure includes a request node and a server, wherein the request node transmits a query request to a catalog server, and the query request includes: real-time streaming media requested to be downloaded and layers of the real-time streaming media requested to be downloaded, the request node receives a list of nodes capable of providing the real-time streaming media of the layers and determined by the catalog server, determines downloading nodes from the list of nodes, and downloads the real-time streaming media of the layers from the downloading nodes.

Abstract translation: 本公开提供了一种用于在属于通信领域的对等（P2P）网络中下载实时流媒体的方法和系统。 本公开的系统包括请求节点和服务器，其中请求节点向目录服务器发送查询请求，并且查询请求包括：请求下载的实时流媒体和实时流的层 要求下载的媒体，请求节点接收能够提供层的实时流媒体并由目录服务器确定的节点列表，从节点列表中确定下载节点，并且下载实时流媒体 的下载节点的层。

公开(公告)号：US11496355B2

公开(公告)日：2022-11-08

申请号：US16931708

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhongyu Wang ,  Peilin Yang ,  Wenxiong Zhu

IPC: H04L45/02 ,  H04L41/069 ,  H04L41/0654 ,  H04L41/0668 ,  H04L43/0811 ,  H04L43/16 ,  H04L45/28 ,  H04L45/00 ,  H04L45/64

Abstract: A method for processing a forwarding device fault, a device, and a controller are provided, and relate to the communications field. The method is as follows. An SNC receives a notification message sent by a first forwarding device, where the notification message includes a fault parameter of the first forwarding device, and the fault parameter includes a device identifier of the first forwarding device, a port identifier of a degraded port, and a degradation value of the port identified by the port identifier. The SNC determines, according to the device identifier and the port identifier, at least one forwarding path that passes through the port identified by the port identifier. The SNC also determines, according to the fault parameter of the first forwarding device and the fault parameters of other forwarding devices on one forwarding path, whether to update the forwarding path.

公开(公告)号：US20170272339A1

公开(公告)日：2017-09-21

申请号：US15614288

申请日：2017-06-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peilin Yang ,  Zhongyu Wang

IPC: H04L12/26

CPC classification number: H04L43/0811 ,  H04L29/06 ,  H04L41/06 ,  H04L43/00 ,  H04L43/0829 ,  H04L43/0864 ,  H04L43/10

Abstract: Embodiments of the present invention disclose a method and an apparatus for detecting connectivity. An SDN device transmits a session negotiation packet to a second network element, where the session negotiation packet is used to negotiate a link between a first network element and the second network element, and the first network element is located in an SDN network; the SDN device obtains a response message returned by the second network element to determine that the link is negotiated successfully; and the SDN device transmits a heartbeat packet to the second network element, where the heartbeat packet is used to detect connectivity of the link. As can be learned, after determining that the link between the second network element and the first network element located in the SDN network is negotiated successfully, the SDN device transmits the heartbeat packet to the second network element.

公开(公告)号：US10756958B2

公开(公告)日：2020-08-25

申请号：US15641027

申请日：2017-07-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhongyu Wang ,  Peilin Yang ,  Wenxiong Zhu

IPC: H04L12/24 ,  H04L12/751 ,  H04L12/26 ,  H04L12/703 ,  H04L12/707 ,  H04L12/715

Abstract: A method for processing a forwarding device fault, a device, and a controller are provided, and relate to the communications field. The method is as follows. An SNC receives a notification message sent by a first forwarding device, where the notification message includes a fault parameter of the first forwarding device, and the fault parameter includes a device identifier of the first forwarding device, a port identifier of a degraded port, and a degradation value of the port identified by the port identifier. The SNC determines, according to the device identifier and the port identifier, at least one forwarding path that passes through the port identified by the port identifier. The SNC also determines, according to the fault parameter of the first forwarding device and the fault parameters of other forwarding devices on one forwarding path, whether to update the forwarding path.

公开(公告)号：US20170302504A1

公开(公告)日：2017-10-19

申请号：US15641027

申请日：2017-07-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhongyu Wang ,  Peilin Yang ,  Wenxiong Zhu

IPC: H04L12/24 ,  H04L12/26

Abstract: A method for processing a forwarding device fault, a device, and a controller are provided, and relate to the communications field. The method is as follows. An SNC receives a notification message sent by a first forwarding device, where the notification message includes a fault parameter of the first forwarding device, and the fault parameter includes a device identifier of the first forwarding device, a port identifier of a degraded port, and a degradation value of the port identified by the port identifier. The SNC determines, according to the device identifier and the port identifier, at least one forwarding path that passes through the port identified by the port identifier. The SNC also determines, according to the fault parameter of the first forwarding device and the fault parameters of other forwarding devices on one forwarding path, whether to update the forwarding path.