公开(公告)号：US20210194789A1

公开(公告)日：2021-06-24

申请号：US17191041

申请日：2021-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Hengjun Zhu ,  Min Zha

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/26 ,  H04L12/727

Abstract: A method and network node for obtaining a target transmission path, where the method includes obtaining, by a first network node in a network domain, topology information of a plurality of network nodes on each path between an ingress node and an egress node that are in the network domain, obtaining, by the first network node, a transmission delay of each path according to the topology information, where the transmission delay of each path includes a sum of physical link delays between all network nodes on each path and node residence times of all the network nodes on each path, and determining, by the first network node, the target transmission path according to the transmission delay of each path.

公开(公告)号：US20210152461A1

公开(公告)日：2021-05-20

申请号：US17135460

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Yuanlong Jiang

IPC: H04L12/751 ,  H04L12/24 ,  H04L12/771 ,  H04L12/741

Abstract: This application provides a method for obtaining a FIB of a device on a network. The network includes a verification system and a plurality of devices, and a first device is one of the plurality of devices. The first device receives a request message sent by the verification system, where the request message carries a command for obtaining a FIB of the first device that is generated at a specified time. The first device obtains the FIB or a FIB snapshot of the first device that is generated at the specified time. The first device adds the obtained FIB or FIB snapshot to a response message, and sends the response message to the verification system.

公开(公告)号：US20200228361A1

公开(公告)日：2020-07-16

申请号：US16830911

申请日：2020-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Chunrong Li ,  Yongjian Hu ,  Weiping Xu

IPC: H04L12/18 ,  H04L12/24

Abstract: A multicast packet transmission method, apparatus, and system, where the method is applied to a multicast ring network and the method includes receiving, by a first network node in the multicast ring network through a first path in a clockwise direction of the multicast ring network, a first multicast packet from a second network node in the multicast ring network, receiving, by the first network node through a second path in an anticlockwise direction of the multicast ring network, a second multicast packet from the second network node, where a payload of the first multicast packet is the same as a payload of the second multicast packet, and forwarding, by the first network node, the first multicast packet or the second multicast packet to at least one multicast destination device connected to the first network node.

公开(公告)号：US10462760B2

公开(公告)日：2019-10-29

申请号：US15961532

申请日：2018-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Jinchun Xu ,  Xian Liu

IPC: H04W56/00 ,  H04W24/04 ,  H04W84/00 ,  H04L12/24 ,  H04L12/26 ,  H04L12/717 ,  H04J3/06 ,  H04L12/751

Abstract: A method, node, and system for detecting a clock synchronization path, where the method includes generating, by a first node, a synchronization detection request message, sending the synchronization detection request message to a second node, where the synchronization detection request message includes an identifier (ID) of the first node, generating, by the second node, a synchronization detection response message according to the synchronization detection request message, sending the synchronization detection response message to the first node, where the synchronization detection response message includes clock topology information of the second node and the ID of the first node, and obtaining, by the first node, a first detection result according to the synchronization detection response message, where the first detection result indicates a status of a clock synchronization path between the first node and the second node.