公开(公告)号：US12068952B2

公开(公告)日：2024-08-20

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

CPC classification number: 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：US10735090B2

公开(公告)日：2020-08-04

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: H04B10/00 ,  H04B10/038 ,  H04L12/10 ,  H04J3/14 ,  H04B10/077

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.

公开(公告)号：US12255819B2

公开(公告)日：2025-03-18

申请号：US17891454

申请日：2022-08-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Zheng ,  Wei Chen

IPC: H04L45/745 ,  H04B10/27 ,  H04L45/50

Abstract: A transmission pipe configuration method, including receiving a device address of a first network domain, a device address of a second network domain from, generating an identifier of a transmission pipe based on the device address of the first network domain and the device address of the second network domain, where the transmission pipe connects a first border transport device and a second border transport device, and sending to the first border transport device, the identifier of the transmission pipe and the device address that is of the second network domain and that corresponds to the transmission pipe. The identifier of the transmission pipe and the device address are used to generate a forwarding table of the first border transport device, the forwarding table indicating a forwarding relationship where service data is forwarded from the first network domain to the second network domain using the transmission pipe.

公开(公告)号：US20220393980A1

公开(公告)日：2022-12-08

申请号：US17891454

申请日：2022-08-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Zheng ,  Wei Chen

IPC: H04L45/745 ,  H04B10/27

Abstract: A transmission pipe configuration method, including receiving a device address of a first network domain, a device address of a second network domain from, generating an identifier of a transmission pipe based on the device address of the first network domain and the device address of the second network domain, where the transmission pipe connects a first border transport device and a second border transport device, and sending to the first border transport device, the identifier of the transmission pipe and the device address that is of the second network domain and that corresponds to the transmission pipe. The identifier of the transmission pipe and the device address are used to generate a forwarding table of the first border transport device, the forwarding table indicating a forwarding relationship where service data is forwarded from the first network domain to the second network domain using the transmission pipe.

公开(公告)号：US11251863B2

公开(公告)日：2022-02-15

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: H04B10/00 ,  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.