Patents by Inventor Jinfeng Yan
Jinfeng Yan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240089213Abstract: 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.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Peiying TAO, Yu WANG, Heyang LIU, Hewen ZHENG, Jinfeng YAN
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Publication number: 20230107366Abstract: This application discloses a network congestion control method, apparatus, device, and system, and a storage medium. In an example method, a first switch receives a target signaling packet that is sent by a second switch in a case in which a network congestion status is 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.Type: ApplicationFiled: November 29, 2022Publication date: April 6, 2023Inventors: Jinfeng YAN, Hewen ZHENG, Lei HAN, Heyang LIU, Peiying TAO, Yu WANG, Xuejun YAO
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Publication number: 20220368633Abstract: 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.Type: ApplicationFiled: July 21, 2022Publication date: November 17, 2022Inventors: Heyang LIU, Hewen Zheng, Lei Han, Jinfeng Yan, Binghui Wu, Huafeng Wen, Peiying TAO
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Publication number: 20220141137Abstract: 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.Type: ApplicationFiled: January 12, 2022Publication date: May 5, 2022Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yanzhu Lin, Heyang Liu, Hewen Zheng, Lei Han, Jinfeng Yan, Peiying Tao
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Patent number: 11245615Abstract: In a method, a controller sends a first route update packet including a first route to a first forwarding device, so that the first forwarding device sends a third route update packet including a third route to at least one target forwarding device; a second forwarding device receives the third route update packet, determines a target link from the first forwarding device to the second forwarding device, and sends, based on a monitored state of the target link, a second route update packet including a second route and a target field to the controller; and the controller determines the state of the target link based on the target field in the second route update packet.Type: GrantFiled: November 27, 2019Date of Patent: February 8, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Heyang Liu, Qinghua Yan, Hewen Zheng, Tao Ma, Jinfeng Yan, Xinggui Wu
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Publication number: 20220029919Abstract: This application provides a virtual channel setting method and the method includes: a' receiving device receives a first data packet of a first data flow from a sending device, where the first data packet includes an identifier of a first virtual channel corresponding to the first data flow; the receiving device selects a second virtual channel for the first data flow from a first virtual channel group corresponding to the first data flow, where the second virtual channel is different from the first virtual channel; and the receiving device sends an acknowledgement packet to the sending device, where the acknowledgement packet includes an identifier of the second virtual channel, and the second virtual channel is used by the sending device to update a virtual channel corresponding to the first data flow.Type: ApplicationFiled: October 12, 2021Publication date: January 27, 2022Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Yongxian Chen, Heyang Liu, Jinfeng Yan, Liyang Sun
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Patent number: 11146469Abstract: Embodiments of the present disclosure 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.Type: GrantFiled: March 18, 2019Date of Patent: October 12, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Duoliang Fan, Binxuan Li, Haotao Pan, Heyang Liu, Jinfeng Yan
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Publication number: 20200099609Abstract: In a method, a controller sends a first route update packet including a first route to a first forwarding device, so that the first forwarding device sends a third route update packet including a third route to at least one target forwarding device; a second forwarding device receives the third route update packet, determines a target link from the first forwarding device to the second forwarding device, and sends, based on a monitored state of the target link, a second route update packet including a second route and a target field to the controller; and the controller determines the state of the target link based on the target field in the second route update packet.Type: ApplicationFiled: November 27, 2019Publication date: March 26, 2020Inventors: Heyang Liu, Qinghua Yan, Hewen Zheng, Tao Ma, Jinfeng Yan, Xinggui Wu
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Patent number: 10587519Abstract: Embodiments of the present disclosure disclose a Clos network load balancing method and apparatus. In certain embodiments, the method includes receiving, by a first switch, a first packet and determining, by the first switch, a third switch. The third switch is a switch in a second group of switches. The method includes performing, by the first switch, tunnel encapsulation on the first packet, a destination Internet Protocol (IP) address in a tunnel-encapsulated IP header being an IP address of a second switch. The method includes performing, by the first switch, Internet Protocol in Internet Protocol (IP-in-IP) encapsulation on the tunnel-encapsulated first packet and sending, by the first switch, the IP-in-IP encapsulated first packet.Type: GrantFiled: January 12, 2018Date of Patent: March 10, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Li Shen, Chuang Wang, Nongda Hu, Hewen Zheng, Jinfeng Yan
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Publication number: 20190306039Abstract: Embodiments of the present disclosure 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.Type: ApplicationFiled: March 18, 2019Publication date: October 3, 2019Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Duoliang Fan, Binxuan Li, Haotao Pan, Heyang Liu, Jinfeng Yan
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Patent number: 10237152Abstract: 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.Type: GrantFiled: June 3, 2016Date of Patent: March 19, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Duoliang Fan, Binxuan Li, Haotao Pan, Heyang Liu, Jinfeng Yan
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Publication number: 20180139139Abstract: Embodiments of the present disclosure disclose a Clos network load balancing method and apparatus. In certain embodiments, the method includes receiving, by a first switch, a first packet and determining, by the first switch, a third switch. The third switch is a switch in a second group of switches. The method includes performing, by the first switch, tunnel encapsulation on the first packet, a destination Internet Protocol (IP) address in a tunnel-encapsulated IP header being an IP address of a second switch. The method includes performing, by the first switch, Internet Protocol in Internet Protocol (IP-in-IP) encapsulation on the tunnel-encapsulated first packet and sending, by the first switch, the IP-in-IP encapsulated first packet.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Inventors: Li Shen, Chuang Wang, Nongda Hu, Hewen Zheng, Jinfeng Yan
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Publication number: 20160359710Abstract: 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.Type: ApplicationFiled: June 3, 2016Publication date: December 8, 2016Inventors: Duoliang FAN, Binxuan LI, Haotao PAN, Heyang LIU, Jinfeng YAN
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Patent number: 9154210Abstract: The disclosure provides a downlink transmission method for a Multiple Input Multiple Output (MIMO) system, and a base station, wherein the method comprises: a base station selecting a downlink MIMO mode in a downlink transmission mode in which a UE currently is by using a Channel Quality Indicator (CQI), a Rank Indicator (RI) and a Preceding Matrix Indicator (PMI) which are reported by the UE within a time window; and the base station transmitting data to the UE by using the selected downlink MIMO mode. The disclosure achieves the effect of increasing the coverage and capacity of the LTE system to the maximum.Type: GrantFiled: November 1, 2010Date of Patent: October 6, 2015Assignee: ZTE CorporationInventors: Bin Li, Jinfeng Yan, Chenhong Lu
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Publication number: 20130058246Abstract: The disclosure provides a downlink transmission method for a Multiple Input Multiple Output (MIMO) system, and a base station, wherein the method comprises: a base station selecting a downlink MIMO mode in a downlink transmission mode in which a UE currently is by using a Channel Quality Indicator (CQI), a Rank Indicator (RI) and a Preceding Matrix Indicator (PMI) which are reported by the UE within a time window; and the base station transmitting data to the UE by using the selected downlink MIMO mode. The disclosure achieves the effect of increasing the coverage and capacity of the LTE system to the maximum.Type: ApplicationFiled: November 1, 2010Publication date: March 7, 2013Applicant: ZTE CORPORATIONInventors: Bin LI, Jinfeng Yan, Chenhong Lu