公开(公告)号：US20210226888A1

公开(公告)日：2021-07-22

申请号：US17226990

申请日：2021-04-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo WANG ,  Shunwan ZHUANG

IPC: H04L12/721 ,  H04L12/751 ,  H04L12/741 ,  H04L12/707

Abstract: This application discloses a routing information sending method and apparatus. The method includes: receiving, by a first network node, routing information sent by a second network node, and determining the routing information corresponds to a tenant identifier; and then determining, by the first network node, that a third network node belongs to a tenant corresponding to the tenant identifier, and sending the routing information to the third network node in response to determining that the third network node belongs to the tenant corresponding to the tenant identifier.

公开(公告)号：US20240214298A1

公开(公告)日：2024-06-27

申请号：US18436897

申请日：2024-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang HUANG ,  Haibo WANG

IPC: H04L45/02 ,  H04L12/46 ,  H04L69/06

CPC classification number: H04L45/04 ,  H04L12/4641 ,  H04L69/06

Abstract: This application discloses a method, an apparatus, a device, and a system for transmitting network layer reachability information, and a medium, and pertains to the communication field. The method includes: obtaining a border gateway protocol BGP message, where the BGP message includes first NLRI that is for advertising a first route, the first NLRI includes a first field set and first indication information, the first field set carries necessary routing information of the first route, and the first indication information indicates that the first NLRI does not include a first field in a second field set, where each field in the second field set carries optional routing information of the first route, and the second field set does not include the first indication information; and sending the BGP message to a second communication apparatus. This application can improve route transmission efficiency.

公开(公告)号：US20240171511A1

公开(公告)日：2024-05-23

申请号：US18426585

申请日：2024-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huajun REN ,  Tong ZHU ,  Haibo WANG

IPC: H04L45/00 ,  H04L45/741 ,  H04L45/745

CPC classification number: H04L45/66 ,  H04L45/741 ,  H04L45/745

Abstract: Embodiments of this application disclose a segment routing over internet protocol version 6 (SRv6)-based communication method and a related apparatus. A layer 2 gateway generates an Ethernet virtual private network instance (EVI) media access control (EVI-MAC route), where the EVI-MAC route includes an Ethernet virtual private network instance segment identifier (EVI SID), the EVI SID is an SRv6 SID applied for by an EVI from the layer 2 gateway, and a MAC address carried in the EVI-MAC route does not include a MAC address of each host in the EVI. The layer 2 gateway advertises the EVI-MAC route to a layer 3 gateway. After the layer 2 gateway advertises the EVI-MAC route to the layer 3 gateway, the layer 3 gateway does not receive a MAC address of a host from the layer 2 gateway.

公开(公告)号：US20240064099A1

公开(公告)日：2024-02-22

申请号：US18449738

申请日：2023-08-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Donglei PANG ,  Cheng SHENG ,  Haibo WANG ,  Fanghong DUAN ,  Zhibo HU ,  Dapeng CHEN ,  Jingrong XIE

IPC: H04L45/64 ,  H04L45/00 ,  H04L12/18 ,  H04L45/76

CPC classification number: H04L45/64 ,  H04L45/54 ,  H04L12/185 ,  H04L45/76

Abstract: This application discloses a communication method and a related apparatus, and relates to the field of communication technologies. The method is applied to an SD-WAN overlay network. A CPE autonomously generates an SD-WAN overlay routing table, so that communication reliability and flexibility are improved. An RR specifies an overlay multicast RPF route to the CPE to implement SD-WAN overlay multicast communication, and the CPE does not need to perform path computation autonomously, so that a computing power requirement of the CPE is reduced. An identifier of the CPE and an identifier of a site are carried in a multicast join message to implement the SD-WAN overlay multicast communication. A standard IP header is carried in a multicast service packet to implement the SD-WAN overlay multicast communication, so that generalization, applicability, and compatibility are improved.

公开(公告)号：US20230388228A1

公开(公告)日：2023-11-30

申请号：US18366920

申请日：2023-08-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiao HE ,  Haibo WANG ,  Zuliang WANG

IPC: H04L45/00 ,  H04L45/24 ,  H04L12/46

CPC classification number: H04L45/566 ,  H04L45/24 ,  H04L12/4633

Abstract: A packet forwarding method and device, and a system are provided, and belong to the field of communication technologies. The method includes: A first node first receives a route to a destination node sent by a second node, where the route carries an identifier of the second node and a plurality of tunnel attributes. A plurality of tunnels from the first node to the second are in a one-to-one correspondence with the plurality of tunnel attributes. The first node forwards packets with different packet attributes destined for same destination node through different tunnels. In this application, packets having different packet attributes can be forwarded over different tunnels, so that traffic steering is implemented at a routing layer, and flexibility of packet forwarding is improved.

公开(公告)号：US20220417153A1

公开(公告)日：2022-12-29

申请号：US17896151

申请日：2022-08-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong WU ,  Ruiqing CAO ,  Haibo WANG

IPC: H04L45/748 ,  H04L45/00

Abstract: A method, a network device, and a system for delivering a message used for RPD are disclosed. In the solution provided in this application, a second network device may deliver a message used for route policy distribution (RPD) to a first network device. The message includes a route policy including a match condition field and an action field. When detecting that route information of a border gateway protocol (BGP) route matches a target feature carried in the match condition field, the first network device may automatically update a route attribute of the BGP route based on a route attribute carried in the action field. The first network device may automatically update the route attribute of the BGP route according to the route policy included in the message delivered by the second network device, and operation and maintenance personnel does not need to perform manual configuration.

公开(公告)号：US20220182381A1

公开(公告)日：2022-06-09

申请号：US17541485

申请日：2021-12-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan ZHUANG ,  Haibo WANG ,  Yunan GU ,  Mingqing HUANG ,  Zhongqi XIA ,  Gang YAN

IPC: H04L9/40 ,  H04L45/745

Abstract: This application relates to the field of computer network technologies and discloses an autonomous system (AS) pair verification method, apparatus, and device. The method can avoid incorrect determining of an AS pair in path information of an AS path during verification of the AS path, and improve accuracy of verifying the AS path. The method is applied to a network device. The method includes: obtaining path information including an AS pair; determining region information of a region to which the AS pair in the path information belongs; and verifying the AS pair based on the determined region information of the region to which the AS pair belongs, where the AS pair in the path information includes two adjacent AS numbers in the path information.

公开(公告)号：US20210359879A1

公开(公告)日：2021-11-18

申请号：US17315803

申请日：2021-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie YANG ,  Haibo WANG

IPC: H04L12/46

Abstract: This application provides a packet forwarding method and a network device. The method specifically includes: A first network device forwards a first packet from a second network device to a corresponding local virtual machine based on the virtual network identifier in the first packet, and does not need to forward the packet according to a virtual routing and forwarding VRF table. This prevents the packet from being forwarded to another network device again, and ensures normal forwarding of the packet.

公开(公告)号：US20210234797A1

公开(公告)日：2021-07-29

申请号：US17215710

申请日：2021-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan ZHUANG ,  Yunan GU ,  Haibo WANG ,  Gang YAN ,  Zhenbin LI

IPC: H04L12/741 ,  H04L12/721 ,  H04L29/06 ,  H04L12/751

Abstract: This disclosure discloses a method, device, and system for determining a route leak. The method includes: receiving, by a network monitoring device managing a first autonomous system, an extended BMP packet sent by a first border node of the first autonomous system and an extended BMP packet sent by a second border node of the first autonomous system. The method includes determining, based on the extended BMP packet sent by the first border node and the extended BMP packet sent by the second border node of the first autonomous system, a receiving relationship of a route prefix received by the first border node from the second autonomous system, and a sending relationship of the route prefix sent by the second border node to a third autonomous system. The method further includes determining, based on the receiving relationship and the sending relationship, whether the route prefix is leaked.