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.

公开(公告)号：US11799756B2

公开(公告)日：2023-10-24

申请号：US17671695

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Shunwan Zhuang ,  Gang Yan

IPC: H04L45/00 ,  H04L45/02 ,  H04L9/40

CPC classification number: H04L45/04 ,  H04L45/02 ,  H04L45/08 ,  H04L63/126

Abstract: A route learning method includes a network device obtaining Border Gateway Protocol (BGP) routing information from a BGP peer. When a target region to which the BGP peer belongs is the same as a target region to which a BGP route belongs, the network device learns the BGP routing information. A packet forwarding method includes a network device receiving a packet through a network interface. When a target region to which the network interface belongs is the same as a target region to which the packet belongs, the network device forwards the packet.

公开(公告)号：US11799688B2

公开(公告)日：2023-10-24

申请号：US17106931

申请日：2020-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Penghui Mi ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L12/46 ,  H04L45/02 ,  H04L45/00 ,  H04L45/50

CPC classification number: H04L12/4675 ,  H04L45/02 ,  H04L45/04 ,  H04L45/34 ,  H04L45/507

Abstract: In a method for managing a VPN, a routing device establishes a BMP session with a BMP server. The routing device allocates a VPN label associated with a VPN instance, wherein the VPN instance is used for communication between the routing device and another routing device. Then, the routing device sends, to the BMP server, a BMP message that carries the VPN label. Because the routing device sends the VPN label through the BMP message, the routing device does not need to establish a BGP peer relationship with the BMP server to send the VPN label.

公开(公告)号：US20210153079A1

公开(公告)日：2021-05-20

申请号：US17097583

申请日：2020-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhibo Hu ,  Gang Yan

IPC: H04W28/26 ,  H04W28/02 ,  H04W28/18 ,  H04W48/18

Abstract: A resource allocation method includes: obtaining, by a first network device, target resource reservation information based on a plurality of transmitted packets, where all of the packets carry a same virtual network identifier, and the virtual network identifier is used to indicate that the packets are transmitted through a same virtual network; and allocating a resource to the virtual network based on the target resource reservation information.

公开(公告)号：US20210119921A1

公开(公告)日：2021-04-22

申请号：US17135698

申请日：2020-12-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jingrong Xie ,  Yang Xia ,  Gang Yan ,  Shunwan Zhuang

IPC: H04L12/803 ,  H04L12/761 ,  H04L12/741

Abstract: The method includes: generating, by a first device, a first packet including a BIER header, where the BIER header includes entropy, and the entropy includes a first part and a second part; determining, by the first device based on the first packet, that there are a plurality of forwarding entries used to forward the first packet; selecting, by the first device, one forwarding entry from the plurality of forwarding entries based on the first part, where the selected forwarding entry includes an address of a second device, and the second device is a next-hop device of the first device; and sending, by the first device, the first packet to the second device, where the second part is used by the second device to select, from a plurality of forwarding entries used to forward the first packet, a forwarding entry used by the second device to forward the first packet.

公开(公告)号：US12301441B2

公开(公告)日：2025-05-13

申请号：US17852714

申请日：2022-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L45/02 ,  H04L45/00 ,  H04L45/033

Abstract: A method for updating route information includes a monitored network element establishes a Border Gateway Protocol (BGP) Monitoring Protocol (BMP) connection to a monitoring network element, and sends a first message to the monitoring network element when detecting a synchronization requirement of BGP route information, where the first message instructs the monitoring network element to update a BGP route information set, and the BGP route information set includes at least one piece of BGP route information. The first message indicates an update set, and the update set updates the BGP route information set.

公开(公告)号：US12120555B2

公开(公告)日：2024-10-15

申请号：US18145419

申请日：2022-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhibo Hu ,  Gang Yan

IPC: H04W28/26 ,  H04W28/02 ,  H04W28/18 ,  H04W48/18

CPC classification number: H04W28/26 ,  H04W28/0263 ,  H04W28/18 ,  H04W48/18

Abstract: A resource allocation method includes: obtaining, by a first network device, target resource reservation information based on a plurality of transmitted packets, where all of the packets carry a same virtual network identifier, and the virtual network identifier is used to indicate that the packets are transmitted through a same virtual network; and allocating a resource to the virtual network based on the target resource reservation information.

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：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.