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公开(公告)号：US12047291B2
公开(公告)日：2024-07-23
申请号：US17865813
申请日：2022-07-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuesong Geng , Guoyi Chen
Abstract: A packet sending method of a controller includes obtaining a forwarding latency requirement of a service flow and a destination address of the service flow; determining a forwarding path that meets the forwarding latency requirement, and determining a number of a first cycle time in which an ingress node forwards a packet and a number of a second cycle time in which an intermediate node forwards the packet; sending a first entry to the ingress node that includes a sequence number of the packet and the first cycle time number; and sending a second entry to the intermediate node that includes the sequence number of the packet and the second cycle time number.
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公开(公告)号：US11863440B2
公开(公告)日：2024-01-02
申请号：US17711708
申请日：2022-04-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuesong Geng , Guoyi Chen
CPC classification number: H04L45/50 , H04L12/4633 , H04L45/24 , H04L45/74 , H04L47/2483 , H04L47/34 , H04L69/22
Abstract: A method for forwarding a packet, and a network device are provided. Under the method: a first packet can be received. The first packet includes first indication information, payload data, and a packet sequence number of the first packet in a data flow corresponding to the first packet. When the first network device determines that the first packet includes the first indication information, a plurality of second packets can be generated based on the first packet. Each of the plurality of second packets includes the payload data, the packet sequence number, and second indication information; and separately forwarding, the plurality of second packets to a second network device over different forwarding paths in a plurality of forwarding paths.
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公开(公告)号：US12160361B2
公开(公告)日：2024-12-03
申请号：US18495897
申请日：2023-10-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuesong Geng , Zhenbin Li , Jingrong Xie
Abstract: This application provides a packet transmission method, apparatus, and device. For example, the method is performed by an ingress node. The ingress node obtains a second packet by using first node information carried in a first packet, where the first node information includes a first bit string indicating N next-hop devices of the ingress node and first reference information used for indexing second node information corresponding to a first intermediate node in the N next-hop devices, and the second packet includes a first identifier determined based on the first reference information. The ingress node sends the second packet to the first intermediate node. Because structures of the first bit string and the first reference information are used, a packet encoding manner is simple, so that packet transmission efficiency is improved.
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公开(公告)号：US20210058322A1
公开(公告)日：2021-02-25
申请号：US17094529
申请日：2020-11-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuesong Geng , Guoyi Chen
IPC: H04L12/741 , H04L12/841 , H04L12/851
Abstract: A packet sending method, a network node, and a system, where a controller obtains a forwarding latency requirement of a service flow and a destination address of the service flow, determines a forwarding path that meets the forwarding latency requirement, and determines a number of a first cycle time in which an ingress node forwards a packet and a number of a second cycle time in which an intermediate node forwards the packet. The controller sends a first entry to the ingress node. The first entry includes a sequence number of the packet and the first cycle time number. The controller sends a second entry to the intermediate node. The second entry includes the sequence number of the packet and the second cycle time number.
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公开(公告)号：US20230370374A1
公开(公告)日：2023-11-16
申请号：US18196866
申请日：2023-05-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Cheng Sheng , Haibo Wang , Fanghong Duan , Gang Yan , Xuesong Geng
IPC: H04L45/741 , H04L12/28 , H04L12/46 , H04L45/02
CPC classification number: H04L45/741 , H04L12/2854 , H04L12/4633 , H04L45/04
Abstract: A multicast communication method is applied to a software-defined wide area network SD-WAN. In the multicast communication method, a bit index explicit replication (Bit Index Explicit Replication, BIER) capability is deployed on a site device in the SD-WAN, a site device through which a multicast packet needs to pass is indicated by a bit index explicit replication IPv6 encapsulation (Bit Index Explicit Replication IPv6 encapsulation, BIERv6) header in the multicast packet, and a multicast distribution tree does not need to be constructed. In addition, the multicast packet is forwarded through an SD-WAN tunnel between site devices, and an intermediate node does not need to sense a multicast service. In this way, a network device has a small quantity of multicast entries and the multicast entries are converged quickly, ensuring normal running of the multicast service.
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Patent Agency Ranking
公开(公告)号：US20230283554A1
公开(公告)日：2023-09-07
申请号：US18315166
申请日：2023-05-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuesong Geng , Zhenbin Li , Jingrong Xie , Shuying Liu
IPC: H04L45/741 , H04L45/745 , H04L45/02
CPC classification number: H04L45/741 , H04L45/745 , H04L45/04
Abstract: A first network device receives a BIER packet sent by a second network device, where the BIER packet includes an IPv6 header, a BIER header, and a multicast packet, a destination address of the IPv6 header or a first field of the BIER header carries a service identifier, and the service identifier identifies a virtual private network VPN instance. The first network device determines a VRF table based on the service identifier and a first correspondence, where the first correspondence includes a correspondence between the service identifier and the VRF table. The first network device sends the multicast packet to a first CE device in the VRF table based on the VRF table.
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公开(公告)号：US20230171184A1
公开(公告)日：2023-06-01
申请号：US18154399
申请日：2023-01-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Fanghong Duan , Xuesong Geng
Abstract: This application provides a packet forwarding method, device, and system. The method includes: A first network device obtains a first packet, where the first packet includes a multicast packet; the first network device determines a next-hop destination address DA of the multicast packet based on a source address SA and a first correspondence relationship, where the SA is used to identify a multicast path corresponding to the multicast packet, and the first correspondence relationship includes the SA and a next-hop DA of the first network device on the multicast path; the first network device obtains a second packet based on the next-hop DA, where the second packet is a unicast packet obtained after IPv6 encapsulation is performed on the multicast packet; and the first network device forwards the second packet along the multicast path based on the next-hop DA.
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公开(公告)号：US11245620B2
公开(公告)日：2022-02-08
申请号：US17226443
申请日：2021-04-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuesong Geng , Guoyi Chen
IPC: H04L12/723 , H04L29/06 , H04L12/46 , H04L12/707 , H04L12/741 , H04L12/851 , H04L12/801
Abstract: A method for forwarding a packet, and a network device are provided. According to the method a first packet can be received. The first packet includes first indication information, payload data, and a packet sequence number of the first packet in a data flow corresponding to the first packet. When the first network device determines that the first packet includes the first indication information, a plurality of second packets can be generated based on the first packet. Each of the plurality of second packets includes the payload data, the packet sequence number, and second indication information. The plurality of second packets can be separately forwarded to a second network device over different forwarding paths in a plurality of forwarding paths.
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公开(公告)号：US20230370899A1
公开(公告)日：2023-11-16
申请号：US18361192
申请日：2023-07-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuesong Geng , Jie Dong , Dawei Fan
IPC: H04W28/16 , H04L41/0893
CPC classification number: H04W28/16 , H04L41/0893
Abstract: Embodiments of this application provide a packet forwarding method, a packet processing method, and a device, to determine a network slice that corresponds to a packet and that is of a transport network. The packet forwarding method includes the following steps: A first device obtains a first packet. The first device is a network device in an access network or in a mobile core network. The first device determines network slice mapping information based on the first packet. The first device generates a second packet based on the first packet. The second packet includes the network slice mapping information. The first device sends the second packet to a second device. The second device is a network device in a transport network.
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公开(公告)号：US11706149B2
公开(公告)日：2023-07-18
申请号：US17035687
申请日：2020-09-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuesong Geng , Guoyi Chen
IPC: H04L47/28 , H04L45/121 , H04L45/74
CPC classification number: H04L47/28 , H04L45/121 , H04L45/74
Abstract: A controller obtains a forwarding latency requirement of a service flow and a destination address of the service flow, and determines a forwarding path that meets the forwarding latency requirement. The controller determines that an ingress node forwards a first cycle time number of a packet and an intermediate node forwards a second cycle time number of the packet, and separately determines a corresponding adjacent segment identifier. A label stack generated by the controller includes the adjacent segment identifier and the adjacent segment identifier. The controller sends the label stack to the ingress node, to trigger the ingress node to forward the packet within a period of time corresponding to the first cycle time number. The controller determines the forwarding path based on the forwarding latency requirement of the service flow, and generates a label stack corresponding to a forwarding time point.
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