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    Congestion control method and network device
    1.
    发明授权
    Congestion control method and network device 有权

    公开(公告)号：US11606297B2

    公开(公告)日：2023-03-14

    申请号：US17211815

    申请日：2021-03-24

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Mengzhu Liu ,  Yali Zhang ,  Shixing Liu

    IPC: H04L12/801 ,  H04L12/825 ,  H04L47/12 ,  H04L47/25

    Abstract: This application provides a congestion control method and a network device. The method includes: receiving a first message sent by a second network device, where the first message carries an active flow quantity, and the active flow quantity is a quantity determined by the second network device based on a data flow to which data packets received from a first network device belong; determining, based on the active flow quantity and rated receiving bandwidth of the second network device, packet sending control information used to send the data flow to the second network device; and sending the data flow to the second network device based on the packet sending control information. This application can better control congestion, thereby reducing network packet loss.

    Data stream sending method and system, and device
    3.
    发明授权
    Data stream sending method and system, and device 有权

    公开(公告)号：US11252099B2

    公开(公告)日：2022-02-15

    申请号：US16913471

    申请日：2020-06-26

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yali Zhang ,  Xiang Qiu ,  Yinben Xia

    IPC: H04L12/801 ,  H04L12/851 ,  H04L29/06

    Abstract: This application provides a data stream sending method, and the method includes: sending, by a first device, a request packet to a second device; sending, by the first device, a data stream to the second device after the first device sends the request packet and before the first device receives the response packet sent by the second device; and receiving, by the first device, the response packet that is sent by the second device and that is in response to the request packet.

    CONGESTION CONTROL METHOD AND NETWORK DEVICE
    4.
    发明申请
    CONGESTION CONTROL METHOD AND NETWORK DEVICE 有权

    公开(公告)号：US20210211380A1

    公开(公告)日：2021-07-08

    申请号：US17211815

    申请日：2021-03-24

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

    Inventor： Mengzhu Liu ,  Yali Zhang ,  Shixing Liu

    IPC: H04L12/801 ,  H04L12/825

    Abstract: This application provides a congestion control method and a network device. The method includes: receiving a first message sent by a second network device, where the first message carries an active flow quantity, and the active flow quantity is a quantity determined by the second network device based on a data flow to which data packets received from a first network device belong; determining, based on the active flow quantity and rated receiving bandwidth of the second network device, packet sending control information used to send the data flow to the second network device; and sending the data flow to the second network device based on the packet sending control information. This application can better control congestion, thereby reducing network packet loss.

    Method, apparatus, and system for implementing rate adjustment at transmit end
    5.
    发明授权
    Method, apparatus, and system for implementing rate adjustment at transmit end 有权

    公开(公告)号：US11108699B2

    公开(公告)日：2021-08-31

    申请号：US16716802

    申请日：2019-12-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhigang Ji ,  Yali Zhang

    IPC: H04L12/28 ,  H04L12/825 ,  H04L12/841

    Abstract: A method, an apparatus, and a system for implementing rate adjustment at a transmit end. The method includes: receiving, by a first network device, a first data packet sent by a previous-hop network device, where the first data packet includes a first required rate, a first deadline, and a first sending rate that correspond to a first data stream; obtaining, by the first network device, a second sending rate of the first data stream; and sending, by the first network device, a feedback packet to a second network device when the second sending rate is less than the first sending rate, where the feedback packet includes the second sending rate, and the feedback packet is used to instruct the second network device to inform, based on the second sending rate, the transmit end to adjust a rate for sending the first data stream.

    Method and system for counting quantity of active flows and network device
    6.
    发明授权
    Method and system for counting quantity of active flows and network device 有权

    公开(公告)号：US11489774B2

    公开(公告)日：2022-11-01

    申请号：US17206804

    申请日：2021-03-19

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Mengzhu Liu ,  Yali Zhang

    IPC: H04L47/12

    Abstract: The method includes a first network device receives a first packet of a first group of data packets from a second network device, and increases a current quantity of active flows by 1, to obtain a first quantity of active flows, the first network device receives a last packet of the first group of data packets sent by the second network device, and determines a first congestion value based on a second quantity of data packets that carry an explicit congestion notification (ECN) identifier in the first group of data packets, and when the first congestion value is less than a congestion threshold, the first network device decreases the first quantity of active flows by 1, to obtain a third quantity of active flows, or when the first congestion value is greater than or equal to the congestion threshold, the first network device keeps the first quantity of active flows unchanged.

    Congestion control method, network device, and network interface controller
    7.
    发明授权
    Congestion control method, network device, and network interface controller 有权

    公开(公告)号：US11228534B2

    公开(公告)日：2022-01-18

    申请号：US16683730

    申请日：2019-11-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Haoyu Song ,  Zhigang Ji ,  Yali Zhang ,  Yinben Xia

    IPC: H04L12/807 ,  H04L12/833 ,  H04L12/861

    Abstract: This application provides a congestion control method, a network device, and a network interface controller. In the congestion control method performed by a first intermediate device, the first intermediate device receives a first data packet sent by a sending device, sends the first data packet to a receiving device along a first path, receives a first acknowledgment packet that is sent by the receiving device and that is used for acknowledging the first data packet, and determines a congestion degree of the first path based on a congestion mark in the first acknowledgment packet. The first intermediate device changes a window value and sends the changed first acknowledgment packet to the sending device. According to a solution provided in this application, a speed of transmitting a data packet is adjusted based on a congestion degree of a communication path and a quantity of bytes of the data packet.

    Network Congestion Control Method and Related Apparatus
    8.
    发明公开
    Network Congestion Control Method and Related Apparatus 审中-公开

    公开(公告)号：US20240364634A1

    公开(公告)日：2024-10-31

    申请号：US18767064

    申请日：2024-07-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yali Zhang ,  Shixing Liu ,  Di Qu ,  Mengzhu Liu

    IPC: H04L47/20 ,  H04L47/11 ,  H04L47/24

    CPC classification number: H04L47/20 ,  H04L47/115 ,  H04L47/24

    Abstract: A network congestion control method includes, during transmission of a first service flow, a first network device that obtains a measurement packet including groups of measurement results corresponding to the first service flow, and each group includes an identifier of a forwarding device on a forwarding path of the first service flow and a measurement value corresponding to the forwarding device. The first network device determines, based on the groups, a congested second network device on the forwarding path. The first network device determines a control policy based on location information of the second network device, where the control policy resolves congestion of the first service flow.

    Method, Apparatus, and System for Implementing Congestion Control
    10.
    发明申请
    Method, Apparatus, and System for Implementing Congestion Control 有权

    公开(公告)号：US20220278936A1

    公开(公告)日：2022-09-01

    申请号：US17747281

    申请日：2022-05-18

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yali Zhang ,  Zhaoxia Yuan ,  Mengzhu Liu ,  Yinben Xia

    IPC: H04L47/2483 ,  H04L47/52 ,  H04L47/62 ,  H04L45/00

    Abstract: The present application disclose a method for implementing congestion control. The method includes: obtaining congestion control information of a first network device, where the congestion control information includes a total bandwidth of a first egress port of the first network device and a quantity of active flows corresponding to a first queue of the first egress port; and determining a sending rate of a first data flow in the active flows based on the congestion control information, where the sending rate is positively related to the total bandwidth and negatively related to the quantity of active flows, and the sending rate is used by a sending device of the first data flow to send the first data flow.

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