公开(公告)号：US20160359710A1

公开(公告)日：2016-12-08

申请号：US15173539

申请日：2016-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Duoliang FAN ,  Binxuan LI ,  Haotao PAN ,  Heyang LIU ,  Jinfeng YAN

IPC: H04L12/26 ,  H04L12/939

CPC classification number: H04L43/0829 ,  H04L43/026 ,  H04L43/04 ,  H04L47/34 ,  H04L49/552 ,  H04L69/16

Abstract: Embodiments of the present invention relate to the field of communications technologies and disclose a packet loss detection method, an apparatus, and a system. The method includes: collecting, by a first network device according to packets sent to a second network device, statistics on a first result corresponding to each group of packets, one first result includes a quantity of packets in one group of packets and a section identifier of the group of packets, each group of packets includes multiple packets, and multiple packets are continuously sent by first network device and belong to a section corresponding to a section identifier of the group of packet; sending, by first network device, first result corresponding to each group of packets to a controller according to a preset rule, so that controller determines whether a packet in the packets sent by first network device to second network device is lost.

Abstract translation: 本发明的实施例涉及通信技术领域，并公开了丢包检测方法，装置和系统。 该方法包括：根据发送给第二网络设备的分组，由第一网络设备收集与每组分组对应的第一结果的统计，一个第一结果包括一组分组中的分组数量和分段标识符 的组数据包，每组数据包包含多个数据包，多个数据包由第一个网络设备连续发送，属于与数据包组的段标识对应的部分; 通过第一网络设备根据预设规则向控制器发送对应于每组分组的第一结果，从而控制器确定由第一网络设备发送到第二网络设备的分组中的分组是否丢失。

公开(公告)号：US20240089213A1

公开(公告)日：2024-03-14

申请号：US18510315

申请日：2023-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peiying TAO ,  Yu WANG ,  Heyang LIU ,  Hewen ZHENG ,  Jinfeng YAN

IPC: H04L47/6275 ,  H04L47/56

CPC classification number: H04L47/6275 ,  H04L47/566

Abstract: The present disclosure relates to priority flow control (PFC) storm detection and processing methods. In one example method, a first network node performs PFC detection on a first port queue of a first port, and determines that a first preset condition is met. The first preset condition includes: detection is performed in N consecutive first time segments, when the detection is performed in each first time segment, a quantity of first PFC frames sent by the first port queue to a second network node is greater than a first threshold, and a quantity of one or more data packets received by the first port queue from the second network node is less than a second threshold. The first PFC frame is used to indicate the second network node to suspend sending all data flows in the first port queue, and N is a positive integer.

公开(公告)号：US20220124036A1

公开(公告)日：2022-04-21

申请号：US17563167

申请日：2021-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qinghua YAN ,  Hewen ZHENG ,  Chao YIN ,  Heyang LIU

IPC: H04L47/12 ,  H04L47/10

Abstract: In a network congestion handling method, a first network device determines a target port, where the target port is an egress port that is in a pre-congestion state or a congestion state. The first network device sends a first notification to at least one second network device. The at least one second network device is capable of sending, through at least two forwarding paths, a data flow to a host corresponding to the target port. The first notification includes information of a network device to which the target port belongs and information of the target port. The first notification can enable the at least one second network device to perform an operation of avoiding network congestion. The network congestion handling method can effectively alleviate network congestion and improve network bandwidth utilization.

公开(公告)号：US20230164094A1

公开(公告)日：2023-05-25

申请号：US18150877

申请日：2023-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tao WU ,  Jian YAN ,  Yongxian CHEN ,  Heyang LIU ,  Huafeng WEN ,  Liyang SUN

IPC: H04L49/9005 ,  H04L47/24

CPC classification number: H04L49/9005 ,  H04L47/24

Abstract: This application provides a buffer configuration method and a switching device, to ensure no packet loss, and belongs to the field of network technologies. The method includes: sending, by a first switching device, a first measurement frame to a second switching device; receiving, by the first switching device, a second measurement frame sent by the second switching device, where the second measurement frame is generated through triggering based on the first measurement frame; determining, by the first switching device, a buffer configuration parameter based on the first measurement frame and the second measurement frame; and setting, by the first switching device, a local buffer based on the configuration parameter. This application is used to automatically configure a buffer of a switching device, thereby reducing buffer space without packet loss.

公开(公告)号：US20220368633A1

公开(公告)日：2022-11-17

申请号：US17870700

申请日：2022-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Heyang LIU ,  Hewen Zheng ,  Lei Han ,  Jinfeng Yan ,  Binghui Wu ,  Huafeng Wen ,  Peiying TAO

IPC: H04L47/122 ,  H04L47/11 ,  H04L43/106

Abstract: This application describes a congestion control method and apparatus. In this application, a network device obtains time information of one or more congestion packets in a sent first data stream, where the one or more congestion packet carries a flag indicating a congestion notification. When the first data stream is congested, the network device obtains a first congestion notification packet based on the time information of the one or more congestion packets in the first data stream, where the first congestion notification packet notifies that a packet is congested beyond a first specified interval. The network device then sends the first congestion notification packet. According to the solutions in this application, a rate of a data stream can be prevented from being increased when the data stream is congested, and packet transmission efficiency is improved.