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公开(公告)号：US12058027B2
公开(公告)日：2024-08-06
申请号：US18327563
申请日：2023-06-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanghong Duan , Jingrong Xie , Zhidan Zhu
IPC: H04L45/16 , H04L12/46 , H04L45/741
CPC classification number: H04L45/16 , H04L12/4641 , H04L45/741 , H04L2212/00
Abstract: This application provides a packet transmission method, a correspondence obtaining method, and an apparatus and a system that are related to the foregoing method. For the packet transmission method, a first PE receives a first BIER packet sent by a first CE, determines, based on the received first BIER packet, a first VPN to which the first CE belongs, and transmits the first BIER packet based on the first VPN.
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公开(公告)号：US20230370293A1
公开(公告)日：2023-11-16
申请号：US18316734
申请日：2023-05-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Donglei Pang , Cheng Sheng , Haibo Wang , Fanghong Duan , Gang Yan , Shunwan Zhuang
CPC classification number: H04L12/18 , H04L45/16 , H04L45/74 , H04L12/4633
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 site devices in the SD-WAN, a BIER header in a multicast packet indicates a site device that a multicast packet needs to pass through, and no multicast distribution tree 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, to reduce a quantity of multicast table entries on a network device and accelerate convergence of the multicast table entries, so that normal running of the multicast service is ensured.
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公开(公告)号：US11929923B2
公开(公告)日：2024-03-12
申请号：US18327556
申请日：2023-06-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanghong Duan , Jingrong Xie , Zhidan Zhu
IPC: H04L45/42 , H04L45/655 , H04L45/748
CPC classification number: H04L45/42 , H04L45/655 , H04L45/748
Abstract: In accordance with an embodiment, a packet transmission method includes receiving, by a second provider edge (PE) through a multicast tunnel, a bit indexed explicit replication (BIER) packet sent by a first PE, wherein the BIER packet comprises a bit string, and the bit string indicates a customer edge (CE) designated to receive the BIER packet; and processing, by the second PE based on the bit string, the BIER packet.
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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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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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Patent Agency Ranking
公开(公告)号：US12199862B2
公开(公告)日：2025-01-14
申请号：US18476354
申请日：2023-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fanghong Duan , Jingrong Xie
IPC: G06F15/173 , H04L45/00 , H04L45/02 , H04L45/748
Abstract: The present disclosure provides a bit index explicit replication over internet protocol version 6 (BIERv6) packet processing method, and the method is applied to an Ethernet virtual private network (EVPN). The method includes: A first network device receives a BIERv6 packet sent by a second network device. The BIERv6 packet includes an internet protocol version 6 (IPv6) header and a broadcast, unknown unicast, and multicast (BUM) packet, a source address (SA) of the IPv6 header is a IPv6 address, the IPv6 address identifies the second network device, the first network device is an egress device in a BIER domain, and the second network device is an ingress device in the BIER domain. The first network device determines, based on the IPv6 address, a EVPN instance to which the BUM packet belongs. The first network device forwards the BUM packet based on the EVPN instance. The foregoing technical solutions can reduce waste of public network link bandwidth, and improve BUM packet replication efficiency.
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公开(公告)号：US20230336484A1
公开(公告)日：2023-10-19
申请号：US18337940
申请日：2023-06-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Fanghong Duan , Shuying Liu
IPC: H04L47/125
CPC classification number: H04L47/125
Abstract: This application provides a load sharing method, a root node device, a leaf node device, and a system. The method includes: a first root node device receives a message sent by the leaf node device, where the message includes a first identifier and configuration information. The first identifier indicates the leaf node device. The configuration information indicates a configuration mode, requested by the leaf node device, of load sharing from a root node device group to the leaf node device. The root node device group includes the first root node device. The first root node device determines, based on the first identifier and the configuration information, a configuration result of the load sharing from the first root node device to the leaf node device.
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公开(公告)号：US20230318974A1
公开(公告)日：2023-10-05
申请号：US18327541
申请日：2023-06-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Fanghong Duan , Xuesong Geng
IPC: H04L45/741 , H04L12/46 , H04L45/16
CPC classification number: H04L45/741 , H04L12/4641 , H04L45/16
Abstract: A first network device receives a BIER packet sent by a second network device. The BIER packet includes a data packet and a global VPN identifier, the global VPN identifier is for uniquely identifying, in a BIER domain, a VPN to which a source device of the data packet belongs, the global VPN identifier includes an identifier of the second network device and a first identifier, and the first identifier is for identifying, on the second network device, the VPN to which the source device of the data packet belongs. The first network device determines, based on the global VPN identifier, a first VPN corresponding to the global VPN identifier. The first network device sends the data packet to the destination device of the data packet corresponding to the first VPN.
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公开(公告)号：US20230188458A1
公开(公告)日：2023-06-15
申请号：US18164415
申请日：2023-02-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Xuesong Geng , Fanghong Duan
Abstract: An IPv6 packet sending method, a device, and a system is provided. The method includes a first network device receives a first IPv6 packet, where the first IPv6 packet includes a packet header and an inner packet, and the packet header includes a hop limit field. The network device further determines whether a value of the hop limit field is less than or equal to a preset threshold, determines whether the inner packet is a multicast packet, and avoids forwarding the first IPv6 packet when the value of the hop limit field is less than or equal to the preset threshold and the inner packet is the multicast packet.
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公开(公告)号：US20200267022A1
公开(公告)日：2020-08-20
申请号：US16861914
申请日：2020-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanghong Duan , Yongsheng Geng
Abstract: In a VXLAN configuration method, a first network device obtains configuration information, generates first GRASP information based on the configuration information, and sends the first GRASP information to a second network device, where the configuration information includes VTEP device information, a plurality of pieces of VTEP device information are respectively used to indicate a plurality of VTEPs included in a VXLAN, the first GRASP information includes objective information, and the objective information is used to carry the configuration information. The second network device receives the first GRASP information and establishes a VXLAN tunnel based on the first GRASP information. In this way, automatic VXLAN configuration is implemented.
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