公开(公告)号：US20250048177A1

公开(公告)日：2025-02-06

申请号：US18365451

申请日：2023-08-04

Applicant: Cisco Technology, Inc.

Inventor： Qiang Yang ,  Kathy Xia Ke ,  Yuping Wang ,  Jing Wang ,  Bin Yu

IPC: H04W28/04 ,  H04W28/02

Abstract: In one embodiment, a method for achieving zero packet loss in wireless roaming is implemented by a processor of a wireless client device in a system. The wireless client device establishes a first data plane in association with a first radio connected to a first access point and a second data plane in association with a second radio. The first data plane is different from and operates concurrently with the second data plane. The wireless client device determines a second access point by scanning a plurality of operating channels using the second radio. The wireless client device synchronizes the second data plane with a network controller to connect the second radio with the second data plane to the second access point. The wireless client device switches traffic of the first data plane connected to the first access point to the second data plane connected to the second access point.

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.