公开(公告)号：US11909657B2

公开(公告)日：2024-02-20

申请号：US17672002

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Jianjie You

IPC: H04L47/28 ,  H04L45/00 ,  H04L47/2483 ,  H04L9/40 ,  H04L45/02

CPC classification number: H04L47/28 ,  H04L45/38 ,  H04L47/2483 ,  H04L45/02 ,  H04L63/1441

Abstract: A route processing method includes obtaining, by a first network device, a flow effective time parameter and a route related to the flow effective time parameter, processing, by the first network device in the specified time interval, service traffic corresponding to the route related to the flow effective time parameter, generating a route control message, where the route control message carries the flow effective time parameter and the route, and sending, by the first network device, the route control message to a second network device.

公开(公告)号：US20240022602A1

公开(公告)日：2024-01-18

申请号：US18471700

申请日：2023-09-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Yunan Gu

IPC: H04L9/40

CPC classification number: H04L63/1466 ,  H04L63/12 ,  H04L63/1425 ,  H04L2463/142

Abstract: A method includes a network device that obtains Border Gateway Protocol (BGP) route information, where the B GP route information includes a target route prefix; obtains, based on the target route prefix, a region identifier of a region to which the target route prefix actually belongs; and verifies the BGP route information based on the target route prefix and the region identifier of the region to which the target route prefix actually belongs.

公开(公告)号：US11855877B2

公开(公告)日：2023-12-26

申请号：US16279398

申请日：2019-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changjiang Yan ,  Shunwan Zhuang ,  Nan Wu

IPC: H04L45/00 ,  H04L12/46 ,  H04L12/66 ,  H04L45/745

CPC classification number: H04L45/20 ,  H04L12/4633 ,  H04L12/66 ,  H04L45/745

Abstract: An information management method includes that a controller generates a first message carrying an address of a first next hop of a network device. The first message includes first identification information. The first identification information instructs the network device to delete, from a next hop table stored in the network device, an entry of the first next hop corresponding to the address of the first next hop. The network device receives the first message, and deletes the entry of the first next hop as indicated by the first identification information. The controller withdraw an unavailable next hop by separately sending information about the next hop to the network device without route prefix information, effectively saving a system resource occupied for route withdrawal message exchanging between the controller and the network device, and improving service processing efficiency.

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

IPC: H04L12/18 ,  H04L45/16 ,  H04L45/74 ,  H04L12/46

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.

公开(公告)号：US20230336404A1

公开(公告)日：2023-10-19

申请号：US18343807

申请日：2023-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Mingqing Huang ,  Min Liu ,  Yunan Gu ,  Gang Yan

IPC: H04L41/0631 ,  H04L67/141 ,  H04L41/0654

CPC classification number: H04L41/0631 ,  H04L67/141 ,  H04L41/0654

Abstract: A method includes: determining that a failure occurs in a session between a first device and a second device; and sending, to the second device after the failure occurs, a first session establishment packet used to establish a new session, where the first session establishment packet carries capability information of the first device, and the capability information of the first device indicates that the first device does not have a capability of filtering a protocol packet for the new session.

公开(公告)号：US11716262B2

公开(公告)日：2023-08-01

申请号：US17825759

申请日：2022-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Peng Zhou ,  Zhenbin Li ,  Hui Ni ,  Nan Wu

IPC: H04L43/02 ,  H04L43/026 ,  H04L43/062 ,  H04L45/00

CPC classification number: H04L43/02 ,  H04L43/026 ,  H04L43/062 ,  H04L45/70

Abstract: A control method for collecting traffic statistics includes a control node obtains a statistics collection instruction, where the statistics collection instruction is used to instruct to collect traffic statistics of a target data flow, generates a traffic statistics collection policy according to the statistics collection instruction, where the traffic statistics collection policy includes a matching identifier of the target data flow, a first command, and a second command, and sends the traffic statistics collection policy to a forwarding node. The first command is used to instruct the forwarding node to set a traffic identifier for the target data flow based on the matching identifier, the second command is used to instruct the forwarding node to add traffic generated by a target packet to a traffic statistics collection result corresponding to the traffic identifier which is used to describe the traffic of the target data flow.

公开(公告)号：US20230146104A1

公开(公告)日：2023-05-11

申请号：US18148549

申请日：2022-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Gang Yan

IPC: H04L45/745 ,  H04L45/02

CPC classification number: H04L45/745 ,  H04L45/04

Abstract: A method for generating an entry includes a first network device that receives a first advertisement packet, where the first advertisement packet includes a source autonomous system (AS) identifier, and the source AS identifier corresponds to a source device of the first advertisement packet; and the first network device that generates a forwarding entry based on the source AS identifier, where the forwarding entry includes an identifier of a first egress, and the first network device receives the first advertisement packet through the first egress.

公开(公告)号：US20230145245A1

公开(公告)日：2023-05-11

申请号：US18153883

申请日：2023-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Tianran Zhou ,  Weidong Li ,  Jie Dong

IPC: H04L41/0803

CPC classification number: H04L41/0803

Abstract: A method according to embodiments of this application includes: A first network device sends a first packet to a second network device, where the first packet includes first indication information, and the first indication information indicates a support status of an iFIT capability corresponding to the first network device or a first service module included in the first network device. The first network device sends the packet to the second network device, to notify the support status of the IFIT capability of the first network device. In this way, the second network device can determine, based on the iFIT capability of the first network device, whether to encapsulate a measurement header, to avoid that a service packet cannot be correctly processed because the first network device cannot strip the measurement header from the service packet.

公开(公告)号：US11516130B2

公开(公告)日：2022-11-29

申请号：US17079415

申请日：2020-10-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L45/74 ,  H04L45/302 ,  H04L45/64

Abstract: A service function chaining (SFC)-based packet forwarding method, an apparatus, and a system, where the packet forwarding method includes receiving, by a first service function forwarding node, a packet forwarding rule from a control node, where the packet forwarding rule indicating a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information, receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet, determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet, determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.

公开(公告)号：US11489836B2

公开(公告)日：2022-11-01

申请号：US16739551

申请日：2020-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Peng Zhou ,  Zhenbin Li ,  Yuanbin Yin ,  Jianbin Xu

IPC: H04L29/06 ,  H04L9/40 ,  H04L45/02 ,  H04L69/22

Abstract: A method, an apparatus, and a system for collecting an access control list (ACL), where a second network device receives a first link-state advertisement (LSA) packet flooded by a first network device, where the first LSA packet includes a first network device identifier and first ACL information, and the first network device and the second network device belong to a same Interior Gateway Protocol (IGP) area, and sends an extended first Border Gateway Protocol-Link State (BGP-LS) packet to a controller, where the extended first BGP-LS packet includes the first network device identifier and the first ACL information such that the controller can collect ACL information of the first network device and manage the ACL information of the first network device.