公开(公告)号：US11943099B2

公开(公告)日：2024-03-26

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：US20240064094A1

公开(公告)日：2024-02-22

申请号：US18496483

申请日：2023-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Donglei Pang ,  Haibo Wang

IPC: H04L45/24 ,  H04L45/02 ,  H04L45/42

CPC classification number: H04L45/24 ,  H04L45/02 ,  H04L45/42

Abstract: Embodiments of this application disclose a route information processing method and an apparatus, which may be used for a network device that supports a BGP protocol, to resolve a defect in an existing BGP SPF protocol. The network device may be a forwarding device, for example, a router or a switch. For example, in embodiments of this application, a priority attribute is introduced to route information that carries NLRI through an extended BGP protocol, to indicate a priority of the route information. This influences a BGP NLRI selection process performed by the network device. For example, embodiments of this application provide a network fault processing method, to help resolve a problem that a network device cannot calculate a packet forwarding path in some scenarios in an existing protocol.

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：US11870686B2

公开(公告)日：2024-01-09

申请号：US17854539

申请日：2022-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibo Wang ,  Wenyan Li ,  Sheng Fang ,  Lili Wang ,  Huizhi Wen

IPC: H04L45/42 ,  H04L45/02 ,  H04L45/00 ,  H04L45/28

CPC classification number: H04L45/42 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28

Abstract: A routing information processing method and apparatus. The method includes a first network device determines a first segment identifier corresponding to a second network device and a first locator. The first network device determines a second segment identifier corresponding to a third network device and a second locator. The first network device sends routing information that includes the first segment identifier and the second segment identifier. A fourth network device advertises mirror routing information specific to the first network device, where the mirror routing information includes the second segment identifier or the second locator.

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：US11757775B2

公开(公告)日：2023-09-12

申请号：US18161923

申请日：2023-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenyan Li ,  Haibo Wang ,  Lili Wang

IPC: H04L45/00

CPC classification number: H04L45/72

Abstract: A message generation method, a message processing method, a message generation apparatus, and a message processing apparatus are provided. The message generation method includes: obtaining, by a first device, a segment identifier list SID list, where the SID list includes a plurality of segment identifiers SIDs, the first N bits of the plurality of SIDs are the same, and N is a positive integer; generating, by the first device, a first message based on the SID list, where the first message includes a first part and a second part, the first part includes the first N bits of the plurality of SIDs, and the second part includes bit N+1 to bit 128 of each of the plurality of SIDs; and sending, by the first device, the first message to a second device.

公开(公告)号：US11695693B2

公开(公告)日：2023-07-04

申请号：US17552704

申请日：2021-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibo Wang ,  Xun Hu ,  Rongrong Hua ,  Tong Zhu

IPC: H04L45/586 ,  H04L12/46 ,  H04L45/42 ,  H04L45/745

CPC classification number: H04L45/586 ,  H04L12/4641 ,  H04L45/42 ,  H04L45/745

Abstract: A packet transmission method, device, and system for network technologies are disclosed. A first network device receives, by using a first VPLS instance a packet to be sent to a user-side device connected to the second network device. The first network device forwards, based on an association relationship between the first VPLS instance and the first VPWS instance, the packet to a second VPWS instance in the second network device by using the first VPWS instance. A VPLS instance is associated with a VPWS instance in the first network device. A packet that is received by using the VPLS instance and that is to be sent to a user-side device can be forwarded by using the associated VPWS instance, so that pressure to learn a MAC address for packet transmission is reduced, and forwarding performance of the system is ensured.

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.