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公开(公告)号：EP3993330A1
公开(公告)日：2022-05-04
申请号：EP20840799.9
申请日：2020-07-15
发明人： LIN, Yanzhu , LIU, Heyang , ZHENG, Hewen , HAN, Lei , YAN, Jinfeng , TAO, Peiying
IPC分类号： H04L12/801
摘要： This application provides a flow rate control method and apparatus. The flow rate control method in this application includes: receiving N explicit congestion notification packets CNPs from a first device, where the N CNPs correspond to a first data flow, and N is a natural number; and sending M CNPs to a second device based on the N CNPs, where the M CNPs correspond to the first data flow, and M is an integer greater than N. This application resolves a problem that rate increase processing is still performed on a data flow when the data flow is congested.
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公开(公告)号：EP4325802A1
公开(公告)日：2024-02-21
申请号：EP21942820.8
申请日：2021-12-22
发明人： TAO, Peiying , WANG, Yu , LIU, Heyang , ZHENG, Hewen , YAN, Jinfeng
IPC分类号： H04L47/10 , H04L47/125
摘要： This application provides a PFC storm detection and processing method. The method includes: A first network node performs priority-based traffic control PFC detection on a first port queue of a first port, and determines that a first preset condition is met, where that a first preset condition is met includes: detection is performed in N consecutive first time segments, and 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, where 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; and the first network node suspends the first port queue from sending the first PFC frame to the second network node. The method helps better meet a service requirement of a data flow sent by a source node.
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公开(公告)号：EP4087199A1
公开(公告)日：2022-11-09
申请号：EP21744459.5
申请日：2021-01-12
发明人： LIU, Heyang , ZHENG, Hewen , HAN, Lei , YAN, Jinfeng , WU, Binghui , WEN, Huafeng , TAO, Peiying
IPC分类号： H04L12/801
摘要： This application discloses 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, 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; and 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.
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公开(公告)号：EP4429187A1
公开(公告)日：2024-09-11
申请号：EP22897596.7
申请日：2022-11-07
发明人： LIU, Heyang , YAN, Jinfeng , TAO, Peiying , HE, Xianjun , HU, Tingbo
IPC分类号： H04L45/02
摘要： This application provides a path awareness method, apparatus, and system, to accurately perform fault detection and fault positioning. The method includes: A source node sends, to a destination node, a first request packet that includes an identifier of a first node, an identifier of a first data flow, and first reserved information; receives a first response packet that includes the identifier of the first data flow, the identifier of the first node, and first indication information; and obtains, based on the first response packet, information indicating that a first path passes through the first node or a first path does not pass through the first node. The first request packet is used to request to determine whether the first path passes through the first node, the first reserved information is used to record a result about whether the first path passes through the first node, and the first indication information is obtained by recording, in the first reserved information, the result about whether the first path passes through the first node.
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公开(公告)号：EP4152705A1
公开(公告)日：2023-03-22
申请号：EP21817960.4
申请日：2021-05-11
发明人： YAN, Jinfeng , ZHENG, Hewen , HAN, Lei , LIU, Heyang , TAO, Peiying , WANG, Yu , YAO, Xuejun
IPC分类号： H04L12/801
摘要： This application discloses a network congestion control method, apparatus, device, and system, and a storage medium. The method includes: The first switch receives a target signaling packet that is sent by a second switch in a target network congestion status. The target signaling packet carries flow source information. The first switch sends, based on the target signaling packet, target flow control information to a network device corresponding to the flow source information. The target flow control information is used to indicate flow control. After receiving the target signaling packet that is sent by the second switch in the target network congestion status, the first switch sends the target flow control information to the network device corresponding to the flow source information carried in the target signaling packet, to indicate flow control, suppress a queue backlog on a congestion side, and ensure a low service delay, without affecting a service throughput. In this way, large-scale RoCE networking can be supported, thereby resolving a DCQCN speed control failure problem in a large-scale high-concurrency scenario.
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