公开(公告)号：US20220360526A1

公开(公告)日：2022-11-10

申请号：US17870678

申请日：2022-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianlong LUO ,  Yu ZHENG ,  Wei CHEN

IPC: H04L45/655 ,  H04L45/036 ,  H04W40/02

Abstract: Embodiments of this application relate to the field of communication technologies, and provide a routing information publishing method. The method includes: An edge transport device connected to a first edge device in a first network domain receives, based on a control plane protocol message, first routing information that is from a controller and that includes an address of a second edge device in a second network domain and a destination address of the second network domain, and sends the first routing information to the first edge device, so that the first edge device generates, based on the first routing information, a forwarding table that is of the first edge device and that is used to indicate a forwarding relationship between the first network domain and the second network domain.

公开(公告)号：US20200343971A1

公开(公告)日：2020-10-29

申请号：US16925687

申请日：2020-07-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haomian ZHENG ,  Yu ZHENG ,  Italo BUSI ,  Qinfen TAN ,  Qingcong LU

IPC: H04B10/038 ,  H04L12/10 ,  H04J3/14 ,  H04B10/077

Abstract: The present disclosure discloses a protection switching method and a node. The method can include: receiving, by an intermediate node, a first protection switching request message sent by an upstream neighboring node, where the first protection switching request message is used to request to activate a first protection path, and the intermediate node is a node on the first protection path; determining, by the intermediate node, that the first protection path needs to occupy N1 timeslots, and selecting N1 timeslots for the first protection path from N2 available timeslots in a preset order; and sending, by the intermediate node, a second protection switching request message to the downstream neighboring node, where the second protection switching request message is used to request the downstream neighboring node to complete a cross-connection, on the first protection path, between the downstream neighboring node and the intermediate node based on the first group of timeslots.

公开(公告)号：US20230345154A1

公开(公告)日：2023-10-26

申请号：US18342169

申请日：2023-06-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei CHEN ,  Yu ZHENG ,  Yi LIN

IPC: H04Q11/00

CPC classification number: H04Q11/0062 ,  H04Q11/0003 ,  H04Q2011/0086

Abstract: This application relates to example service configuration methods and example apparatuses. In one example method, a first optical transport network (OTN) device receives a first message from an optical line terminal (OLT) device, where the first message includes first address information of a service. The first OTN device determines, based on the first message, whether a first path has been established in an OTN, where the first path is used to transmit data of the service, and the first path satisfies the first address information. The first OTN device establishes a path for transmitting data of the service or adjusts a bandwidth of the established first path based on a result of the determining.

公开(公告)号：US20230262369A1

公开(公告)日：2023-08-17

申请号：US18307163

申请日：2023-04-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu ZHENG ,  Wei CHEN

IPC: H04Q11/00 ,  H04L45/00

CPC classification number: H04Q11/0003 ,  H04L45/66

Abstract: A service data transmission method, to simplify a structure of a communication network and facilitate planning of the communication network by service planning personnel. The method includes: A service receiving device actively sends a MAC address of the service receiving device to a plurality of service sending devices that have a connection relationship with the service receiving device, and each service sending device configures local routing information based on the MAC address. The MAC address of the service receiving device does not need to be obtained based on an ARP request, avoiding a limitation on an IP address of a device port caused by the ARP request. An IP address of one device is used to replace IP addresses of a plurality of ports of the device, simplifying a communication network.

公开(公告)号：US20190215060A1

公开(公告)日：2019-07-11

申请号：US16360379

申请日：2019-03-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haomian ZHENG ,  Yu ZHENG ,  Italo BUSI ,  Qinfen TAN ,  Qingcong LU

IPC: H04B10/038 ,  H04B10/077

CPC classification number: H04B10/038 ,  H04B10/0771 ,  H04J3/14 ,  H04J2203/006 ,  H04L12/10 ,  Y02D50/30

Abstract: The present disclosure discloses a protection switching method and a node. The method includes: receiving, by an intermediate node, a first protection switching request message sent by an upstream neighboring node, where the first protection switching request message is used to request to activate a first protection path, and the intermediate node is a node on the first protection path; determining, by the intermediate node, that the first protection path needs to occupy N1 timeslots, and selecting N1 timeslots for the first protection path from N2 available timeslots in a preset order; and sending, by the intermediate node, a second protection switching request message to the downstream neighboring node, where the second protection switching request message is used to request the downstream neighboring node to complete a cross-connection, on the first protection path, between the downstream neighboring node and the intermediate node based on the first group of timeslots.