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公开(公告)号：US11616656B2
公开(公告)日：2023-03-28
申请号：US17090616
申请日：2020-11-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Nu Xia , Jian Chen , Xia Zhu , Naiwen Wei
IPC: H04L12/18 , H04L45/02 , H04L45/74 , H04L67/1095
Abstract: A multicast data transmission method includes: determining, by a first BFIR in a first BIER domain, a BIFT-id and a bitstring that correspond to multicast data in a second BIER domain, where the BIFT-id is determined based on at least an SI to which a BFR-id of a first BFER belongs and a BSL supported by the first BFER, and the first BFER is a BFER in the second BFER domain that is used to receive the multicast data; encapsulating the multicast data into a BIER data packet, where a BIER header of the BIER data packet includes the BIFT-id and the bitstring that correspond to the multicast data in the second BIER domain; and finally sending the labeled BIER data packet to a second BFIR, where the label is a label corresponding to a prefix of the second BFIR.
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公开(公告)号：US11582053B2
公开(公告)日：2023-02-14
申请号：US17137398
申请日：2020-12-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Nu Xia , Gang Chen , Hongbo Zhao , Boyuan Yu , Mingli Zhang
Abstract: A data multicast implementation method, apparatus, and system are provided. In some embodiments, a transmission device receives a standby forwarding path establishment request, where the standby forwarding path establishment request includes a device identifier, has a destination address being an address of a multicast source device, and is used to request to establish a standby forwarding path between a multicast destination device identified by the device identifier and the multicast source device. In those embodiments, when determining, based on the device identifier in the standby forwarding path establishment request, that the transmission device is located on an active forwarding path between the multicast destination device and the multicast source device, the transmission device skips using the transmission device as a device on the standby forwarding path between the multicast destination device and the multicast source device, and skips forwarding the standby forwarding path establishment request.
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公开(公告)号：US11463338B2
公开(公告)日：2022-10-04
申请号：US17482042
申请日：2021-09-22
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L43/0882 , H04L43/106 , H04L43/12
Abstract: A method for measuring available bandwidth includes a transmit end that sends a first probe sequence to a receive end, and receives a first available bandwidth measurement result from the receive end, the transmit end determines a second probe sequence based on the first available bandwidth measurement result, where the second probe sequence includes a group of probe packets with increasing sending rates, a range of the sending rates of the second probe sequence is the same as a range of the sending rates of the first probe sequence, the transmit end sends the second probe sequence to the receive end, and receives the second available bandwidth measurement result from the receive end, and the transmit end obtains the available bandwidth based on the second available bandwidth measurement result.
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公开(公告)号：US20210119814A1
公开(公告)日：2021-04-22
申请号：US17137398
申请日：2020-12-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Nu Xia , Gang Chen , Hongbo Zhao , Boyuan Yu , Mingli Zhang
IPC: H04L12/18 , H04L12/761 , H04L12/703 , H04L12/707
Abstract: A data multicast implementation method, apparatus, and system are provided. In some embodiments, a transmission device receives a standby forwarding path establishment request, where the standby forwarding path establishment request includes a device identifier, has a destination address being an address of a multicast source device, and is used to request to establish a standby forwarding path between a multicast destination device identified by the device identifier and the multicast source device. In those embodiments, when determining, based on the device identifier in the standby forwarding path establishment request, that the transmission device is located on an active forwarding path between the multicast destination device and the multicast source device, the transmission device skips using the transmission device as a device on the standby forwarding path between the multicast destination device and the multicast source device, and skips forwarding the standby forwarding path establishment request.
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公开(公告)号：US20210058260A1
公开(公告)日：2021-02-25
申请号：US17090616
申请日：2020-11-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Nu Xia , Jian Chen , Xia Zhu , Naiwen Wei
IPC: H04L12/18 , H04L12/741 , H04L29/08 , H04L12/715
Abstract: A multicast data transmission method includes: determining, by a first BFIR in a first BIER domain, a BIFT-id and a bitstring that correspond to multicast data in a second BIER domain, where the BIFT-id is determined based on at least an SI to which a BFR-id of a first BFER belongs and a BSL supported by the first BFER, and the first BFER is a BFER in the second BFER domain that is used to receive the multicast data; encapsulating the multicast data into a BIER data packet, where a BIER header of the BIER data packet includes the BIFT-id and the bitstring that correspond to the multicast data in the second BIER domain; and finally sending the labeled BIER data packet to a second BFIR, where the label is a label corresponding to a prefix of the second BFIR.
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Patent Agency Ranking
公开(公告)号：US20210014174A1
公开(公告)日：2021-01-14
申请号：US17033100
申请日：2020-09-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Nu Xia , Jian Chen , Xia Zhu , Jun Zhou , Yihong Huang , Ji Li , Naiwen Wei
IPC: H04L12/927 , H04L12/18 , H04L12/741
Abstract: A method, a device, and a system for transmitting a multicast packet are provided. The method includes: when a device that is in a source subnet and that is connected to a core network receives a multicast packet of a target multicast group, determining addresses of devices that are in a plurality of destination subnets corresponding to the target multicast group and that are connected to the core network, replicating the multicast packet, to obtain a plurality of multicast packets whose quantity is equal to a quantity of the plurality of destination subnets, separately adding outer encapsulation to each multicast packet, and forwarding the multicast packet to which the outer encapsulation is added, where a destination address in the outer encapsulation is an address of a device that is in each destination subnet and that is connected to the core network.
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公开(公告)号：US11736411B2
公开(公告)日：2023-08-22
申请号：US17033100
申请日：2020-09-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Nu Xia , Jian Chen , Xia Zhu , Jun Zhou , Yihong Huang , Ji Li , Naiwen Wei
IPC: H04L47/80 , H04L12/18 , H04L45/745
CPC classification number: H04L47/806 , H04L12/1886 , H04L45/745
Abstract: A method, a device, and a system for transmitting a multicast packet are provided. The method includes: when a device that is in a source subnet and that is connected to a core network receives a multicast packet of a target multicast group, determining addresses of devices that are in a plurality of destination subnets corresponding to the target multicast group and that are connected to the core network, replicating the multicast packet, to obtain a plurality of multicast packets whose quantity is equal to a quantity of the plurality of destination subnets, separately adding outer encapsulation to each multicast packet, and forwarding the multicast packet to which the outer encapsulation is added, where a destination address in the outer encapsulation is an address of a device that is in each destination subnet and that is connected to the core network.
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公开(公告)号：US20230090622A1
公开(公告)日：2023-03-23
申请号：US17993346
申请日：2022-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jun Zhou , Nu Xia , Xiaoyang Qu , Luyou He , Xia Zhu
IPC: H04L47/193 , H04L47/30 , H04L47/27 , H04L47/127
Abstract: This application discloses a network congestion control method and a network device, and relates to the field of communication technologies, to improve continuity and completion of a packet in a transmission process of a Transmission Control Protocol (TCP) flow. In this application, when pre-congestion (that is, congestion may occur) occurs in a forwarding direction of the TCP flow, a forwarding device reduces a value of a receive window (RWND) field in an acknowledge (ACK) packet, to reduce a sending rate of a transmit end for a packet in the TCP flow or delay sending of a packet by a transmit end. This relieves buffer pressure of the forwarding device, reduces a packet loss, and improves the continuity and the completion of the packet in the transmission process of the TCP flow.
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公开(公告)号：US11425051B2
公开(公告)日：2022-08-23
申请号：US16698575
申请日：2019-11-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Nu Xia , Jinhui Zhang , Qikun Wei
Abstract: A flow control method and system, and a device are provided to implement flow control in a process of transmitting a media stream between devices. The method includes: receiving, by a first device, a media stream that is sent by a second device at a first rate; instructing based on a rate of a media stream in a first time period in which a buffer usage rises from a first threshold to a second threshold, the second device to send a media stream to the first device at a second rate which is less than the first rate; instructing based on a rate of a media stream in a second time period in which the buffer usage rises from the second threshold to a third threshold, the second device to send a media stream to the first device at a third rate which is not greater than the second rate.
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公开(公告)号：US20220006717A1
公开(公告)日：2022-01-06
申请号：US17482042
申请日：2021-09-22
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L12/26
Abstract: A method for measuring available bandwidth includes a transmit end that sends a first probe sequence to a receive end, and receives a first available bandwidth measurement result from the receive end, the transmit end determines a second probe sequence based on the first available bandwidth measurement result, where the second probe sequence includes a group of probe packets with increasing sending rates, a range of the sending rates of the second probe sequence is the same as a range of the sending rates of the first probe sequence, the transmit end sends the second probe sequence to the receive end, and receives the second available bandwidth measurement result from the receive end, and the transmit end obtains the available bandwidth based on the second available bandwidth measurement result.
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