公开(公告)号：US10567197B2

公开(公告)日：2020-02-18

申请号：US16008420

申请日：2018-06-14

Applicant: Cisco Technology, Inc.

Inventor： Bin Yu ,  Xiang Fang

IPC: H04W84/12 ,  H04L12/46 ,  H04W24/08 ,  H04L29/08

Abstract: A method includes receiving, at a first wireless bridge device, a first packet and determining whether the first packet is a first type or a second type. If the first packet is the first type, the first packet is duplicated to generate two duplicated packets. A first one of the duplicated packets is forwarded to a second wireless bridge device via a tunnel between the first wireless bridge device and the second wireless bridge device. A second one of the duplicated packets is forwarded to one or more access points via a first wireless link between the first wireless bridge device and the one or more access points. If the first packet is the second type, the first packet is forwarded to the second wireless bridge device via the tunnel or forwarding the first packet to the one or more access points via the first wireless link.

公开(公告)号：US20190386849A1

公开(公告)日：2019-12-19

申请号：US16008420

申请日：2018-06-14

Applicant: Cisco Technology, Inc.

Inventor： Bin Yu ,  Xiang Fang

IPC: H04L12/46 ,  H04L29/08 ,  H04W24/08

Abstract: A method includes receiving, at a first wireless bridge device, a first packet and determining whether the first packet is a first type or a second type. If the first packet is the first type, the first packet is duplicated to generate two duplicated packets. A first one of the duplicated packets is forwarded to a second wireless bridge device via a tunnel between the first wireless bridge device and the second wireless bridge device. A second one of the duplicated packets is forwarded to one or more access points via a first wireless link between the first wireless bridge device and the one or more access points. If the first packet is the second type, the first packet is forwarded to the second wireless bridge device via the tunnel or forwarding the first packet to the one or more access points via the first wireless link.

公开(公告)号：US20190317749A1

公开(公告)日：2019-10-17

申请号：US15952566

申请日：2018-04-13

Applicant: Cisco Technology, Inc.

Inventor： Die Hu ,  Kang Li ,  Huimin She ,  Xiang Fang

IPC: G06F8/65 ,  H04L12/24

Abstract: In a multiple interface, low power and lossy network comprising multiple nodes, a Network Management System (“NMS”) communicating firmware upgrades in each node of a network utilizing centralized scheduling and distributed dissemination of firmware blocks. A firmware update image is broken into blocks and transmitted throughout the network of nodes. In certain instances, every node does not receive every firmware block. The NMS receives a bitmap from the nodes indicating which of the blocks each node is missing from the update. The NMS identify particular nodes that are missing blocks and source nodes that have the blocks and are nearest to the particular recipient nodes. The NMS determines the route for the source node with the block to deliver the block to the recipient node that this missing a block. The source nodes that are identified and instructed to communicate a block to a recipient node.

公开(公告)号：US11758367B2

公开(公告)日：2023-09-12

申请号：US17315459

申请日：2021-05-10

Applicant: Cisco Technology, Inc.

Inventor： Lei Zhao ,  Mingyu Xie ,  Jianfeng Mao ,  Xiang Fang

IPC: H04W4/06 ,  H04W40/24 ,  H04L12/18

CPC classification number: H04W4/06 ,  H04W40/248 ,  H04L12/189

Abstract: In one embodiment, a method comprises: establishing, by a network management device, a wireless multicast tree topology for a wireless mesh network, the wireless multicast tree topology comprising a root network device and wireless multicast hubs providing respective wireless multicast areas, the establishing including selecting each wireless multicast hub based on a corresponding location and a corresponding wireless neighbor count; and causing, by the network management device, the root network device to unicast transmit to a selected one or more of the wireless multicast hubs a multicast packet encapsulated within a unicast header, the unicast header causing the selected one or more of the wireless multicast hubs to multicast transmit the multicast packet within a corresponding one or more of the wireless multicast areas.