公开(公告)号：US20190182152A1

公开(公告)日：2019-06-13

申请号：US16279401

申请日：2019-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changjiang Yan ,  Shunwan Zhuang ,  Nan Wu ,  Guoyi Chen ,  Zhenbin Li ,  Baohua Song

IPC: H04L12/741

Abstract: An information synchronization method includes sending, by a controller, a first message to a network device, where the first message carries control routing protocol (CRP) routing entry information, and is used to advertise a CRP route, and the first message includes first identification information, and after receiving the first message, storing, by a forwarding device, the CRP routing entry information into a CRP routing table of the network device as indicated by the first identification information. Hence, because a route advertised by the controller and a route advertised using a routing protocol between forwarding devices are stored in different routing tables, a related application of the route advertised using the routing protocol between the forwarding devices is not affected.

公开(公告)号：US10193707B2

公开(公告)日：2019-01-29

申请号：US15494334

申请日：2017-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingui Zhang ,  Jianfei He ,  Guoyi Chen ,  Jie Dong ,  Fuyou Miao

IPC: H04L12/46 ,  H04L12/753 ,  H04L12/741 ,  H04L12/715 ,  H04L12/707 ,  H04L29/12

Abstract: An embodiment of a Network Virtualization Edge (NVE) device for transmitting packets receives a packet including a source address and a destination address. The NVE device obtains an active-active access configuration information list including a first entry and a second entry, where the first entry includes an identifier of a first active-active group, a Virtual Network Instance (VNI), and an identifier of the NVE device, and the second entry includes an identifier of a second active-active group, a VNI, and identifiers of at least two NVE devices that belong to the second active-active group. The NVE device obtains the VNI according to the identifier of the NVE device, searches for one active-active group corresponding to the VNI, selects a second NVE device from the at least two NVE devices; and encapsulates the packet using an identifier of the second NVE device and the VNI, and sends the packet.

公开(公告)号：US08958311B2

公开(公告)日：2015-02-17

申请号：US14198117

申请日：2014-03-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinchun Guo ,  Wei Cao ,  Guoyi Chen

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/703

CPC classification number: H04L43/0823 ,  H04L41/0631 ,  H04L41/0677 ,  H04L41/0681 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/28

Abstract: A troubleshooting method includes sending a forward detection message to at least one node on a path to be detected. The forward detection message carries information about a forward path to be detected and information about a backward path to be detected. Faults are detected according to a backward detection message returned by the at least one node.

Abstract translation: 故障排除方法包括将正向检测消息发送到要检测的路径上的至少一个节点。 前向检测消息携带有关要检测的前向路径的信息和关于要检测的后向路径的信息。 根据由至少一个节点返回的反向检测消息来检测故障。

公开(公告)号：US12192202B2

公开(公告)日：2025-01-07

申请号：US17477884

申请日：2021-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuping Peng ,  Guoyi Chen ,  Chengguang Niu ,  Zhouyi Yu

IPC: H04L9/40 ,  H04L12/66 ,  H04L47/70 ,  H04L61/503 ,  H04L67/141

Abstract: This application discloses a communication method, and relates to the communications field. In the method, a fixed mobile interworking function (FMIF) receives an access request message that carries first authentication information of a fixed network device and that is sent by a broadband network gateway (BNG), where the first authentication information is generated by the BNG based on a dial-up packet sent by the fixed network device, and the first authentication information includes an identifier of the fixed network device. The FMIF encapsulates the first authentication message in a message format supported by a control plane interface between the FMIF and a core network device, to obtain a second authentication message; and the FMIF sends the second authentication message to the core network device through the control plane interface. The core network device performs authentication on the fixed network device based on the second authentication message.

公开(公告)号：US20240283735A1

公开(公告)日：2024-08-22

申请号：US18421926

申请日：2024-01-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： CHENG LI ,  Zhenbin Li ,  Jun Gong ,  Guoyi Chen ,  Jie Dong

IPC: H04L45/00 ,  H04L45/12 ,  H04L45/42

CPC classification number: H04L45/566 ,  H04L45/123 ,  H04L45/42

Abstract: This application discloses a method that includes obtaining by a network device an original segment list corresponding to a packet forwarding path, where the original segment list includes original segment identifiers that are sequentially arranged, and each of the original segment identifiers that are sequentially arranged corresponds to one node or link on the packet forwarding path. The method further includes comparing by the network device a plurality of successively adjacent original segment identifiers in the original segment list, to generate a plurality of successively adjacent compressed segment identifiers, where a length of each compressed segment identifier is less than a length of a corresponding original segment identifier, and generating by the network device a compressed segment list, where the compressed segment list includes a plurality of compressed segment identifiers, and the compressed segment list is used to forward a packet along the packet forwarding path.

公开(公告)号：US11902156B2

公开(公告)日：2024-02-13

申请号：US17520737

申请日：2021-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cheng Li ,  Zhenbin Li ,  Jun Gong ,  Guoyi Chen ,  Jie Dong

IPC: H04L45/00 ,  H04L45/12 ,  H04L45/42

CPC classification number: H04L45/566 ,  H04L45/123 ,  H04L45/42

Abstract: This application discloses a method that includes obtaining by a network device an original segment list corresponding to a packet forwarding path, where the original segment list includes original segment identifiers that are sequentially arranged, and each of the original segment identifiers that are sequentially arranged corresponds to one node or link on the packet forwarding path. The method further includes comparing by the network device a plurality of successively adjacent original segment identifiers in the original segment list, to generate a plurality of successively adjacent compressed segment identifiers, where a length of each compressed segment identifier is less than a length of a corresponding original segment identifier, and generating by the network device a compressed segment list, where the compressed segment list includes a plurality of compressed segment identifiers, and the compressed segment list is used to forward a packet along the packet forwarding path.

公开(公告)号：US11792100B2

公开(公告)日：2023-10-17

申请号：US17135317

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Guoyi Chen

IPC: H04L43/0852 ,  H04L43/18 ,  H04L45/741 ,  H04L45/745

CPC classification number: H04L43/0858 ,  H04L43/18 ,  H04L45/741 ,  H04L45/745

Abstract: A network performance parameter sending method includes: obtaining, by a first network node, a segment identifier of a second network node in a segment list of a packet, where the second network node is a next-hop segment node of the first network node on a forwarding path of the packet; and adding, by the first network node, a network performance parameter of the first network node to the segment list, and then sending the packet to the second network node. In a process of forwarding the packet by using the segment list in the packet, the first network node uses the segment list to carry the network performance parameter of the network node.

公开(公告)号：US11677657B2

公开(公告)日：2023-06-13

申请号：US17145564

申请日：2021-01-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Stefano Previdi ,  Guoyi Chen

IPC: H04L45/128 ,  H04L45/24 ,  H04L45/00 ,  H04L45/50 ,  H04L45/02 ,  H04L69/04 ,  H04L45/12

CPC classification number: H04L45/1287 ,  H04L45/02 ,  H04L45/04 ,  H04L45/12 ,  H04L45/24 ,  H04L45/34 ,  H04L45/50 ,  H04L69/04

Abstract: A method and an apparatus for obtaining information about a forwarding path of a data packet in segment routing (SR) include, when a first path indicated by a plurality of path identifiers in initial information is a unique shortest path from a start node on the first path to an end node on the first path, the first path is indicated using a node-segment identifier (SID) of the end node on the first path instead of the path identifiers.

公开(公告)号：US11431611B2

公开(公告)日：2022-08-30

申请号：US17094538

申请日：2020-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Guoyi Chen ,  Zongpeng Du ,  Ling Xu

IPC: H04L1/00 ,  H04L45/121 ,  H04L45/02 ,  H04L45/12 ,  H04L45/24

Abstract: A method includes receiving, by a network device, notification packets separately sent by a plurality of forwarding nodes, where each notification packet includes interface forwarding delay information of the forwarding node that sends the notification packet, device forwarding delay information of the forwarding node, and a transmission delay of a link connected to the forwarding node; obtaining the interface forwarding delay information and the device forwarding delay information of each of the plurality of forwarding nodes, and obtaining a transmission delay of a link between the plurality of forwarding nodes; and computing a forwarding path between a first forwarding node and a second forwarding node, where a forwarding delay of the forwarding path meets a delay requirement of a service.

公开(公告)号：US20220060414A1

公开(公告)日：2022-02-24

申请号：US17520737

申请日：2021-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cheng Li ,  Zhenbin Li ,  Jun Gong ,  Guoyi Chen ,  Jie Dong

IPC: H04L12/721 ,  H04L12/717

Abstract: This application discloses a method that includes obtaining by a network device an original segment list corresponding to a packet forwarding path, where the original segment list includes original segment identifiers that are sequentially arranged, and each of the original segment identifiers that are sequentially arranged corresponds to one node or link on the packet forwarding path. The method further includes comparing by the network device a plurality of successively adjacent original segment identifiers in the original segment list, to generate a plurality of successively adjacent compressed segment identifiers, where a length of each compressed segment identifier is less than a length of a corresponding original segment identifier, and generating by the network device a compressed segment list, where the compressed segment list includes a plurality of compressed segment identifiers, and the compressed segment list is used to forward a packet along the packet forwarding path.