公开(公告)号：US11190367B2

公开(公告)日：2021-11-30

申请号：US16830864

申请日：2020-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Meng ,  Chuang Wang ,  Yong Huang

IPC: H04L12/18 ,  H04L12/741

Abstract: This application discloses a multicast forwarding method and a multicast router. The method includes: listening to, by a first multicast router, a plurality of unicast packets passing through the first multicast router, and determining a set of unicast packets that are from a same upstream multicast router and that belong to a same unicast stream; when determining that destination addresses of at least two unicast packets in the unicast packet set are different, sending, by the first multicast router, a prune message to the upstream multicast router; and sending, by the first multicast router, the received unicast packets with the multicast identifier to the destination devices corresponding to the destination address group. The method is used to provide a new multicast method, so as to implement multicast functions of some routers in an existing unicast network architecture.

公开(公告)号：US11134129B2

公开(公告)日：2021-09-28

申请号：US16911152

申请日：2020-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shoushou Ren ,  Delei Yu ,  Shen Yan ,  Chuang Wang ,  Zongxin Dou ,  Wanhong Wang

IPC: H04L12/761 ,  H04L29/08 ,  H04L12/753

Abstract: Embodiments of the present invention provide a packet processing method, including: receiving, by a first node, a first packet, where the first packet carries a first bit string, the first bit string includes M bit sets, each bit set corresponds to one node group, a value of the bit set is used to indicate whether one or more target nodes of the first packet include the corresponding node group; and determining, by the first node based on the first bit string and a second bit string, whether to send the first packet to a second node, where the second bit string includes N bit sets, each bit set corresponds to one node group, a value of the bit set is used to indicate whether a node belonging to the corresponding node group exists in one or more related nodes of the first node.

公开(公告)号：US12058054B2

公开(公告)日：2024-08-06

申请号：US17580831

申请日：2022-01-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Meng ,  Chuang Wang ,  Delei Yu

IPC: H04L47/28 ,  H04L45/50 ,  H04L47/12

CPC classification number: H04L47/28 ,  H04L45/50 ,  H04L47/12

Abstract: A packet transmission method and apparatus, and a system. The method includes: after receiving a first packet, a first device determines, based on a condition met by a first number carried in the first packet, a manner of sending the first packet. When the first number of the first packet meets a first condition, a second device determines a second cycle label corresponding to a first cycle label and sends the first packet to a third device in a cycle corresponding to the second cycle label. When the first number of the first packet meets a second condition, the second device determines a third cycle label corresponding to the first cycle label and sends the first packet to the third device in a cycle corresponding to the third cycle label.

公开(公告)号：US11252266B2

公开(公告)日：2022-02-15

申请号：US16858268

申请日：2020-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Chen ,  Chuang Wang ,  Delei Yu

IPC: H04L29/06 ,  H04L12/26 ,  H04L12/851

Abstract: Embodiments of this application provide network traffic marking and measurement methods and a node, and relate to the field of communications technologies, and specifically, to network traffic measurement and network traffic distribution. The network traffic measurement method includes: receiving, by a second node, a data packet sent by another node in a network, where the data packet is periodically marked by the another node, and each node has a different period of marking a data packet. According to the application, the second node may distinguish, based on the period of marking the data packet, traffic sent by the another node in the network, to obtain network traffic sent by the another node in the network to the second node. Upon implementing the traffic measurement method, data plane overheads can be reduced, and a hardware implementation process is simplified.

公开(公告)号：US11237345B2

公开(公告)日：2022-02-01

申请号：US16888121

申请日：2020-05-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Daochun Mo ,  Qingzhi Liu ,  Xiaofei Xu ,  Wenyang Lei ,  Chuang Wang ,  Linchun Wang

IPC: G02B6/43 ,  H04B10/80 ,  H04Q11/00

Abstract: This application discloses an optical backplane system, which includes a first upper-level optical interconnection module, a first lower-level optical interconnection module, and a second lower-level optical interconnection module. The first upper-level optical interconnection module includes M1 first interfaces and N1 second interfaces in connection relationships. The first lower-level optical interconnection module includes L1 third interfaces and K1 fourth interfaces in connection relationships. The second lower-level optical interconnection module includes L2 third interfaces and K2 fourth interfaces in connection relationships. The first upper-level optical interconnection module is connected to one of the L1 third interfaces of the first lower-level optical interconnection module by using one of the N1 second interfaces. The first upper-level optical interconnection module is connected to one of the L2 third interfaces of the second lower-level optical interconnection module by using another one of the N1 second interfaces.

公开(公告)号：US20200220803A1

公开(公告)日：2020-07-09

申请号：US16818606

申请日：2020-03-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuli Zheng ,  Xiaohu Xu ,  Nongda Hu ,  Chuang Wang ,  Zhe Chen ,  Bingyang Liu

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/773

Abstract: This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, to reduce a quantity of LSA sending times. The method includes: generating, by a first router, a first path table based on level location information of the first router, level location information of a second router, and level location information of at least one third router; sending, by the first router, a first link state update LSU message to the second router; receiving, by the second router, the first link state update LSU message from the first router; updating, by the second router, a link state database LSDB of the second router based on a first LSA; and sending, by the second router, the first LSA to a router corresponding to an identifier in the first path table.

公开(公告)号：US12238128B2

公开(公告)日：2025-02-25

申请号：US17675275

申请日：2022-02-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiyu Jiang ,  Bingyang Liu ,  Chuang Wang

IPC: H04L9/40

Abstract: A data processing method includes an authenticated identifier and a key corresponding to the authenticated identifier are allocated to a terminal that accesses a service supported by an application server. The terminal includes the authenticated identifier and a verification code in a sent data packet such that a network device can identify a legal data packet and an illegal data packet based on the authenticated identifier and the verification code, and forward the legal data packet.

公开(公告)号：US20240048528A1

公开(公告)日：2024-02-08

申请号：US18491421

申请日：2023-10-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingyang Liu ,  Xue Yang ,  Ting Xu ,  Chuang Wang

IPC: H04L9/40

CPC classification number: H04L63/0245 ,  H04L63/20

Abstract: A policy enforcement device receives a first data packet sent by a source device. The first data packet carries information about a source security group and information about a destination security group, where the source security group is a security group to which the source device belongs, and where the destination security group is a security group to which a destination device of the first data packet belongs.

公开(公告)号：US11411853B2

公开(公告)日：2022-08-09

申请号：US16818606

申请日：2020-03-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuli Zheng ,  Xiaohu Xu ,  Nongda Hu ,  Chuang Wang ,  Zhe Chen ,  Bingyang Liu

IPC: H04L12/751 ,  H04L12/721 ,  H04L45/02 ,  H04L45/12 ,  H04L45/60

Abstract: This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, to reduce a quantity of LSA sending times. The method includes: generating, by a first router, a first path table based on level location information of the first router, level location information of a second router, and level location information of at least one third router; sending, by the first router, a first link state update LSU message to the second router; receiving, by the second router, the first link state update LSU message from the first router; updating, by the second router, a link state database LSDB of the second router based on a first LSA; and sending, by the second router, the first LSA to a router corresponding to an identifier in the first path table.

公开(公告)号：US11310167B2

公开(公告)日：2022-04-19

申请号：US16785181

申请日：2020-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Meng ,  Chuang Wang ,  Bin Da

IPC: H04L12/913 ,  H04L47/78 ,  H04L47/783 ,  H04L47/70

Abstract: The present disclosure relates to resource reservation methods. One example method includes receiving, by a controller, a resource reservation request that is of a communication session and that is sent by a sending device, where the resource reservation request carries resource requirement information, obtaining, by the controller based on the resource reservation request, identification information of a network device through which data transmission of the communication session to be performed between the sending device and a receiving device passes, and a resource index of the network device, sending, by the controller, the resource requirement information and the resource index to the network device based on the identification information, where the resource requirement information and the resource index are used to instruct the network device to configure a resource for the communication session, and sending, by the controller, the identification information and the resource index to the sending device.