公开(公告)号：US11290388B2

公开(公告)日：2022-03-29

申请号：US17021478

申请日：2020-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong Zhou ,  Yun Xiong ,  Xing Xing ,  Xiang Yu

IPC: G06F15/16 ,  H04L47/62 ,  H04L12/46 ,  H04L47/12 ,  H04L47/80

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose a flow control method and apparatus, to resolve a prior-art problem such as packet loss, packet accumulation, or network congestion that occurs after a packet is switched between priority queues. A specific solution is as follows: A first device receives a first packet sent by a second device, where the first packet carries a first field and a second field, the first field carries a first priority, and the second field carries a second priority; the first device performs flow control based on the first priority in the first packet; and the first device performs queue scheduling on the first packet based on the second priority in the first packet.

公开(公告)号：US20210006502A1

公开(公告)日：2021-01-07

申请号：US17021478

申请日：2020-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong Zhou ,  Yun Xiong ,  Xing Xing ,  Xiang Yu

IPC: H04L12/863 ,  H04L12/927 ,  H04L12/801 ,  H04L12/46

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose a flow control method and apparatus, to resolve a prior-art problem such as packet loss, packet accumulation, or network congestion that occurs after a packet is switched between priority queues. A specific solution is as follows: A first device receives a first packet sent by a second device, where the first packet carries a first field and a second field, the first field carries a first priority, and the second field carries a second priority; the first device performs flow control based on the first priority in the first packet; and the first device performs queue scheduling on the first packet based on the second priority in the first packet.

公开(公告)号：US11646967B2

公开(公告)日：2023-05-09

申请号：US17521664

申请日：2021-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Shen ,  Hewen Zheng ,  Hong Zhou ,  Nongda Hu ,  Xiang Yu

IPC: H04L47/12 ,  H04L45/00 ,  H04L47/24 ,  H04L47/2483 ,  H04L47/28 ,  H04L47/6275

CPC classification number: H04L47/12 ,  H04L45/38 ,  H04L47/2458 ,  H04L47/2483 ,  H04L47/28 ,  H04L47/6275

Abstract: Example packet control methods and apparatus are described. One example method includes detecting, by a network node, a packet in a packet flow causing a congestion from an upstream node. The network node reduces a scheduling priority of the packet in the packet flow and generates a congestion isolation message, where the congestion isolation message includes description information of the packet flow. The congestion isolation message is sent to the upstream node to instruct the upstream node to reduce the scheduling priority of the packet in the packet flow.

公开(公告)号：US20210135999A1

公开(公告)日：2021-05-06

申请号：US17144816

申请日：2021-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhao Sun ,  Li Shen ,  Xiang Yu ,  José Duato

IPC: H04L12/863 ,  H04L12/851

Abstract: A packet control method, a flow table update method, and a node device including a first queue and a second queue, where the method includes: obtaining, by the node device, a first packet; determining, by the node device, that a data flow to which the first packet belongs is marked as an isolated flow; and if the first queue and/or the second queue meet and/or meets a first preset condition, controlling, by the node device, the first packet to enter the first queue and wait to be scheduled; or if the first queue and/or the second queue meet and/or meets a second preset condition, controlling, by the node device, the first packet to enter the second queue and wait to be scheduled.

公开(公告)号：US12088471B2

公开(公告)日：2024-09-10

申请号：US17534408

申请日：2021-11-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Yin ,  Yongxian Chen ,  Heyang Liu ,  Xiang Yu ,  Hewen Zheng ,  Liyang Sun

IPC: H04L12/24 ,  H04L41/12 ,  H04L45/02

CPC classification number: H04L41/12 ,  H04L45/02

Abstract: This application provides a method and an apparatus for determining a port orientation. The method includes: A first network device receives, through a first port, a protocol data unit PDU sent by a second network device. The first network device determines, based on the PDU, that the first port is an upstream port or a downstream port. In this embodiment of this application, the first network device may determine, based on the PDU sent by the second network device, whether the first port is the upstream port or the downstream port, to provide a basis for subsequently helping an SDN controller reduce load.

公开(公告)号：US11516145B2

公开(公告)日：2022-11-29

申请号：US17144816

申请日：2021-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhao Sun ,  Li Shen ,  Xiang Yu ,  José Duato

IPC: H04L47/2441 ,  H04L47/62 ,  H04L47/6295 ,  H04L47/625

Abstract: A packet control method, a flow table update method, and a node device including a first queue and a second queue, where the method includes: obtaining, by the node device, a first packet; determining, by the node device, that a data flow to which the first packet belongs is marked as an isolated flow; and if the first queue and/or the second queue meet and/or meets a first preset condition, controlling, by the node device, the first packet to enter the first queue and wait to be scheduled; or if the first queue and/or the second queue meet and/or meets a second preset condition, controlling, by the node device, the first packet to enter the second queue and wait to be scheduled.

公开(公告)号：US11190449B2

公开(公告)日：2021-11-30

申请号：US16793136

申请日：2020-02-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Shen ,  Hewen Zheng ,  Hong Zhou ,  Nongda Hu ,  Xiang Yu

IPC: H04L12/801 ,  H04L12/721 ,  H04L12/833 ,  H04L12/851 ,  H04L12/841 ,  H04L12/865

Abstract: Example packet control methods and apparatus are described. One example method includes detecting a packet flow causing a congestion status change. A congestion isolation message is generated and is used to change a priority of a packet in the packet flow. The congestion isolation message includes description information of the packet flow. The congestion isolation message is sent to at least one node.

公开(公告)号：US12015560B2

公开(公告)日：2024-06-18

申请号：US17369739

申请日：2021-07-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zijian He ,  Hui Lu ,  Linchun Wang ,  Xingtao Yan ,  Yang Liu ,  Wenzong Yang ,  Jingzhou Yu ,  Xiang Yu

IPC: H04L47/10 ,  H04L47/34 ,  H04W72/23

CPC classification number: H04L47/39 ,  H04L47/34 ,  H04W72/23

Abstract: This application provides for data transmission between first and second network devices. The first network device requests information from the second network device and in return receives grant information from the second network device. The grant information includes at least a first sequence number that is used by the first network device to determine a first credit limit, where the first credit limit is an amount of data allowed to be sent by the first network device in a packet-distributed load sharing manner. The first network device sends data to the second network device based on the first credit limit. Second and third sequence numbers are also described.

公开(公告)号：US20220086051A1

公开(公告)日：2022-03-17

申请号：US17534408

申请日：2021-11-23

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Chao Yin ,  Yongxian Chen ,  Heyang Liu ,  Xiang Yu ,  Hewen Zheng ,  Liyang Sun

IPC: H04L12/24 ,  H04L12/751

Abstract: This application provides a method and an apparatus for determining a port orientation. The method includes: A first network device receives, through a first port, a protocol data unit PDU sent by a second network device. The first network device determines, based on the PDU, that the first port is an upstream port or a downstream port. In this embodiment of this application, the first network device may determine, based on the PDU sent by the second network device, whether the first port is the upstream port or the downstream port, to provide a basis for subsequently helping an SDN controller reduce load.

公开(公告)号：US12056125B2

公开(公告)日：2024-08-06

申请号：US17860906

申请日：2022-07-08

Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

Inventor： Guoliang Li ,  Xiang Yu ,  Di Yang

IPC: G06F16/2453 ,  G06F16/22

CPC classification number: G06F16/24544 ,  G06F16/2246 ,  G06F16/24545

Abstract: A database processing method and an apparatus are provided, and may be applied to a database system. A tree structure is used to represent a join order and used as an input of a neural network, and different first attribute matrices are allocated to different brother nodes in the input tree structure. This helps the neural network comprehensively learn information about the join order, obtain representation information capable of differentiating the join order from another join order, and predict costs of the join order accurately based on the obtained representation information of the join order. Then, an optimizer selects a join order with lowest costs for a query statement based on the costs predicted by a cost prediction module.