公开(公告)号：US20240022945A1

公开(公告)日：2024-01-18

申请号：US18476737

申请日：2023-09-28

申请人： Cisco Technology, Inc.

发明人： Jerome Henry ,  Nancy Cam-Winget ,  Simone Arena ,  Darrin Joseph Miller ,  Sudhir Kumar Jain ,  Einar Nilsen-Nygaard

IPC分类号： H04W28/02 ,  H04W8/24 ,  H04W28/086

CPC分类号： H04W28/0205 ,  H04W28/0215 ,  H04W8/245 ,  H04W28/086

摘要： Embodiments identify a station that rotates an over the air station address. As address rotation was not originally designed into wireless networks, the rotation can introduce communication challenges for the station. The embodiments derive that traffic referencing two different over the air station addresses are associated with a single common station. This is accomplished by determining a similarity between properties of two sets of traffic. A first set of traffic references the first over the air station address and a second set of traffic references the second over the air station address. If the properties common across the two sets of traffic indicate sufficient similarity, the embodiments determine that both sets of traffic are associated with a single device. Network configuration of the device is then adjusted based on the determination.

公开(公告)号：US20230371052A1

公开(公告)日：2023-11-16

申请号：US18359511

申请日：2023-07-26

申请人： Cisco Technology, Inc.

发明人： Jerome Henry ,  Sudhir Kumar Jain ,  Aries Kuttiyan

IPC分类号： H04W72/51 ,  H04W24/02

CPC分类号： H04W72/51 ,  H04W24/02 ,  H04W84/12

摘要： Techniques to adaptively support/enable a wireless network feature for certain wireless client devices without hampering the performance or connectivity of wireless client devices which do not support that wireless network feature. An access point or wireless network controller adaptively enables a wireless network feature without advertising support for the wireless network feature in a wireless network-standard compliant manner to allow one or more wireless clients that support the wireless network feature to use the wireless network feature when associated to the access point while enabling association of one or more wireless clients that do not support the wireless network feature.

公开(公告)号：US11375398B2

公开(公告)日：2022-06-28

申请号：US16680684

申请日：2019-11-12

申请人： Cisco Technology, Inc.

发明人： Rupak Chandra ,  Sudhir Kumar Jain ,  Veselin Ganev ,  Prithvi Manduva ,  Muhammad Arif Shamim ,  Patrick Jean Marc Grossetete

IPC分类号： H04W28/04 ,  H04W76/15 ,  H04W84/12

摘要： In one embodiment, a client device having a plurality of radios obtains a list of basic service set identifiers (BSSIDs) for a plurality of wireless access points of a wireless network. The client device associates each of the plurality of radios of the client device with a different wireless access point of the wireless network, based on the obtained list of BSSIDs. The client device receives a copy of a data packet from a particular one of the associated wireless access points. Each of the associated wireless access points receives a replicated copy of the data packet to be transmitted towards the client device. The device causes the associated wireless access points to cease further transmission of their copies of the data packet by acknowledging receipt of the data packet to the particular wireless access point.

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：US20210014684A1

公开(公告)日：2021-01-14

申请号：US17028455

申请日：2020-09-22

申请人： Cisco Technology, Inc.

发明人： Suja Thangaveluchamy ,  Niranjan Mallapura Mallikarjunaiah ,  Aries Kuttiyan ,  Sudhir Kumar Jain ,  Vijay Kumar Kothamasu ,  Ramachandra Murthy S

IPC分类号： H04W12/06 ,  H04L29/06 ,  H04W12/08 ,  H04W12/04

摘要： A default pre-shared key is provided from a first device to a second device. The first device is configured to control network access to a network. A first authentication request is obtained at the first device from a third device. The first authentication request includes data indicative of the second device. A first response to the first authentication request is provided from the first device to the third device. The first response includes the default pre-shared key. A second authentication request containing a private pre-shared key and the data indicative of the second device is obtained at the first device from the third device. Stored data at the first device is updated in response to the second authentication request with the private pre-shared key and the data indicative of the second device to provision the first device to provide network access to the network to the second device.

公开(公告)号：US20200260431A1

公开(公告)日：2020-08-13

申请号：US16864707

申请日：2020-05-01

申请人： Cisco Technology, Inc.

发明人： Jerome Henry ,  Sudhir Kumar Jain ,  Aries Kuttiyan

IPC分类号： H04W72/04 ,  H04W24/02

摘要： Techniques to adaptively support/enable a wireless network feature for certain wireless client devices without hampering the performance or connectivity of wireless client devices which do not support that wireless network feature. An access point or wireless network controller adaptively enables a wireless network feature without advertising support for the wireless network feature in a wireless network-standard compliant manner to allow one or more wireless clients that support the wireless network feature to use the wireless network feature when associated to the access point while enabling association of one or more wireless clients that do not support the wireless network feature.

公开(公告)号：US20200162915A1

公开(公告)日：2020-05-21

申请号：US16194550

申请日：2018-11-19

申请人： Cisco Technology, Inc.

发明人： Abhishek Dhammawat ,  Sudhir Kumar Jain ,  Mansi Jain

IPC分类号： H04W12/06 ,  H04W12/04 ,  H04L29/06 ,  H04L9/08

摘要： A wireless network environment includes a plurality of access points, a wireless local area network (WLAN) controller, and a plurality of client devices. The client devices attempt to authenticate with the WLAN controller to gain access to wireless services provided by the WLAN controller and/or the access points. To authenticate with the WLAN controller, the WLAN controller obtains a request to establish a wireless network connection from one or more of the client devices. The WLAN controller then provides a response to the request. The response indicates whether the WLAN controller supports performing password-mapped simultaneous authentication of equals (SAE). The WLAN controller then obtains a message including a password-mapped identifier from the client device. The WLAN controller then establishes a connection with the client device based on the password obtained with password-mapped identifier mapping at WLC.

公开(公告)号：US10470086B2

公开(公告)日：2019-11-05

申请号：US15701851

申请日：2017-09-12

申请人： Cisco Technology, Inc.

发明人： Jerome Henry ,  Robert Barton ,  Sudhir Kumar Jain

IPC分类号： H04W36/00 ,  H04L12/859 ,  H04W88/12 ,  H04W84/12 ,  H04W36/14

摘要： Stateful roaming techniques are provided for use in a wireless network. In one embodiment, a method is provided that includes: obtaining flow information descriptive of one or more traffic flows associated with a wireless client device that is associated to a current access point in a wireless network; storing state data representing the flow information for flows associated with the wireless client device together with a traffic descriptor for each flow; determining that the wireless client device is seeking to roam from the current access point to a new access point; and sending the state data for the wireless client device to the new access point to enable the new access point to apply a policy based on the state data before the wireless client device completes its roam to the new access point.

公开(公告)号：US11895085B2

公开(公告)日：2024-02-06

申请号：US17473218

申请日：2021-09-13

申请人： Cisco Technology, Inc.

发明人： Srinath Gundavelli ,  Shree N. Murthy ,  Sudhir Kumar Jain

IPC分类号： H04L61/5014 ,  H04W72/04 ,  H04L101/622

CPC分类号： H04L61/5014 ,  H04W72/04 ,  H04L2101/622

摘要： A network management center includes a Dynamic Host Configuration Protocol (DHCP) server. The network management center obtains from an identity server, client information indicating authentication of a client device in a wireless network that is connected to a network fabric. The network management center obtains from an edge node in the network fabric an Internet Protocol (IP) address request for the client device. The IP address request including a fabric domain identifier associated with the edge node. The network management center allocates an IP address for the client device based on the client information obtained from the identity server and the fabric domain identifier contained in the IP address request obtained from the edge node. The network management center provides to the edge node an Identifier Locator Addressing (ILA) address based on the IP address.

公开(公告)号：US11849344B2

公开(公告)日：2023-12-19

申请号：US17236659

申请日：2021-04-21

申请人： Cisco Technology, Inc.

发明人： Jerome Henry ,  Nancy Cam-Winget ,  Simone Arena ,  Darrin Joseph Miller ,  Sudhir Kumar Jain ,  Einar Nilsen-Nygaard

IPC分类号： H04W28/02 ,  H04W8/24 ,  H04W28/086

CPC分类号： H04W28/0205 ,  H04W8/245 ,  H04W28/0215 ,  H04W28/086

摘要： Embodiments identify a station that rotates an over the air station address. As address rotation was not originally designed into wireless networks, the rotation can introduce communication challenges for the station. The embodiments derive that traffic referencing two different over the air station addresses are associated with a single common station. This is accomplished by determining a similarity between properties of two sets of traffic. A first set of traffic references the first over the air station address and a second set of traffic references the second over the air station address. If the properties common across the two sets of traffic indicate sufficient similarity, the embodiments determine that both sets of traffic are associated with a single device. Network configuration of the device is then adjusted based on the determination.