公开(公告)号：US20220183111A1

公开(公告)日：2022-06-09

申请号：US17111625

申请日：2020-12-04

申请人： Cisco Technology, Inc.

发明人： Vincent Cuissard ,  Domenico Ficara ,  Alessandro Erta ,  Luca Bisti ,  Kasi Nalamalapu ,  Sudhir Kumar Jain ,  Salvatore Valenza ,  Arun Khanna ,  Stefano Ferrari ,  Loris Gazzarrini

IPC分类号： H04W88/16 ,  H04W40/24 ,  H04W4/40 ,  H04W76/12 ,  H04W76/11

摘要： In one embodiment, a gateway to a Layer-3 network forms a first Layer-2 tunnel between the gateway and a first wireless access point (AP) that communicates wirelessly with a first mobile node of a mobile system (MS) via a first wireless connection. The gateway generates a mapping that associates an onboard device of the MS with the first AP and an identifier for the MS, based on traffic conveyed via the first Layer-2 tunnel and associated with the onboard device, the traffic comprising a header that indicates the identifier for the MS. The gateway receives, from a second AP, an indication that the MS is roaming from the first wireless connection to a second wireless connection, the indication including the identifier for the MS. The gateway updates the mapping to associate the onboard device of the MS with a second AP, based on the indication that the MS is roaming.

公开(公告)号：US11799514B2

公开(公告)日：2023-10-24

申请号：US17503904

申请日：2021-10-18

申请人： Cisco Technology, Inc.

发明人： Alessandro Erta ,  Luca Bisti ,  Domenico Ficara ,  Kasi Nalamalapu ,  Salvatore Valenza ,  Vincent Cuissard ,  Sudhir Kumar Jain ,  Loris Gazzarrini ,  Arun Khanna ,  Stefano Ferrari ,  Pascal Thubert

IPC分类号： H04B1/7143 ,  H04W64/00 ,  H04W72/20

CPC分类号： H04B1/7143 ,  H04W64/006 ,  H04W72/20

摘要： In one embodiment, a device identifies a path of travel of a mobile system. The device subdivides the path of travel into a plurality of zones. The device generates time-slotted channel hopping schedules for the plurality of zones, each time-slotted channel hopping schedule having an associated zone among the plurality of zones. The device causes the mobile system to communicate wirelessly with networking infrastructure located along the path of travel, in accordance with a particular one of the time-slotted channel hopping schedules while the mobile system is located in its associated zone.

公开(公告)号：US20230092337A1

公开(公告)日：2023-03-23

申请号：US17483314

申请日：2021-09-23

申请人： Cisco Technology, Inc.

发明人： Alessandro Erta ,  Luca Bisti ,  Domenico Ficara ,  Kasi Nalamalapu ,  Salvatore Valenza ,  Vincent Cuissard ,  Sudhir Kumar Jain ,  Loris Gazzarrini ,  Arun Khanna ,  Stefano Ferrari ,  Pascal Thubert

IPC分类号： H04W36/08 ,  H04W36/00 ,  H04W36/20 ,  H04W24/08

摘要： In one embodiment, a mobile system scans wireless channels for any upcoming access points using a dedicated monitor radio of the mobile system. The mobile system identifies a particular wireless channel in use by an upcoming access point. The mobile system notifies a second radio of the mobile system of the particular wireless channel. The mobile system performs a handoff between a current access point and the upcoming access point in part by switching the second radio of the mobile system to the particular wireless channel of the upcoming access point.

公开(公告)号：US20230354034A1

公开(公告)日：2023-11-02

申请号：US17731689

申请日：2022-04-28

申请人： Cisco Technology, Inc.

发明人： Domenico Ficara ,  Roberto Muccifora ,  Amine Choukir ,  Robert Barton ,  Jerome Henry ,  Arun Khanna

IPC分类号： H04W12/122 ,  H04W12/73 ,  H04W12/106

CPC分类号： H04W12/122 ,  H04W12/73 ,  H04W12/106

摘要： A method is provided that is performed in a wireless network to detect a rogue wireless device. The method comprises detecting a suspect wireless device in the wireless network based on messages transmitted by the suspect wireless device using a first Media Access Control (MAC) address that is also used by a valid wireless device in the wireless network. When a suspect wireless device is detected, the method next includes sending to the valid wireless device in the wireless network a request configured to cause the valid wireless device to change its MAC address. After the valid wireless device has changed its MAC address, the method involves observing messages transmitted by the suspect wireless device in the wireless network. The method then includes determining that the suspect wireless device is a rogue device when the suspect wireless device continues to transmit messages using the first MAC address.

公开(公告)号：US11575612B2

公开(公告)日：2023-02-07

申请号：US17340606

申请日：2021-06-07

申请人： Cisco Technology, Inc.

发明人： Alessandro Erta ,  Luca Bisti ,  Domenico Ficara ,  Kasi Nalamalapu ,  Vincent Cuissard ,  Sudhir Kumar Jain ,  Loris Gazzarrini ,  Arun Khanna ,  Stefano Ferrari ,  Salvatore Valenza

IPC分类号： H04L47/28 ,  H04W40/20 ,  H04L47/50 ,  H04W8/04

摘要： In one embodiment, a networking device receives packets of a traffic flow destined for a mobile system. The networking device sends a first flowlet of the traffic flow towards the mobile system via a first wireless access point. The networking device determines an idle time between the first flowlet and a second flowlet of the traffic flow. The networking device sends, based on the idle time, the second flowlet towards the mobile system via a second wireless access point.

公开(公告)号：US11678250B2

公开(公告)日：2023-06-13

申请号：US17240116

申请日：2021-04-26

申请人： Cisco Technology, Inc.

发明人： Alessandro Erta ,  Luca Bisti ,  Arun Khanna ,  Sudhir Kumar Jain ,  Kasi Nalamalapu ,  Stefano Ferrari ,  Salvatore Valenza ,  Domenico Ficara ,  Vincent Cuissard ,  Loris Gazzarrini ,  Rupak Chandra

IPC分类号： H04W40/00 ,  H04W40/24 ,  H04W40/02 ,  H04W28/10 ,  H04L45/24 ,  H04W28/06 ,  H04L45/50

CPC分类号： H04W40/246 ,  H04L45/24 ,  H04L45/50 ,  H04W28/06 ,  H04W28/10 ,  H04W40/02

摘要： In one embodiment, a device identifies a plurality of access points of a wireless network. The device also identifies a plurality of mobile nodes of a mobile system. The device establishes a first label-switched path in the wireless network that comprises a wireless link between a first mobile node in the plurality of mobile nodes and a first access point in the plurality of access points. The device establishes a second label-switched path in the wireless network that comprises a wireless link between a second mobile node of the mobile system and a second access point in the plurality of access points.

公开(公告)号：US20230171172A1

公开(公告)日：2023-06-01

申请号：US17538109

申请日：2021-11-30

申请人： Cisco Technology, Inc.

发明人： Domenico Ficara ,  Vincent Cuissard ,  Luca Bisti ,  Alessandro Erta ,  Arun Khanna ,  Frank Brockners

IPC分类号： H04L43/08 ,  H04L12/46

CPC分类号： H04L43/08 ,  H04L12/4633

摘要： In one embodiment, a network device along a path in a network receives a schedule that controls when the networking device is to insert telemetry data into data traffic passing through the networking device. The networking device generates the telemetry data for insertion into the data traffic passing through the networking device. The networking device inserts, according to the schedule, the telemetry data into a particular packet of the data traffic passing through the networking device. The networking device sends the particular packet to a next hop along the path in the network.