公开(公告)号：US08441983B2

公开(公告)日：2013-05-14

申请号：US12773360

申请日：2010-05-04

Applicant: Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

Inventor： Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp ,  Kent Leung

IPC: H04W40/00

CPC classification number: H04W40/24 ,  H04L45/04 ,  H04L45/42

Abstract: Techniques are provided to support roaming of wireless devices in a network such that the wireless devices can keep their Internet Protocol (IP) addresses as they roam within and across mobility sub-domains. When a wireless device roams from one access switch to another access switch, a tunneling endpoint apparatus in the wireless device's home mobility sub-domain is configured to serve as the point of presence for the roamed wireless device. Traffic for the roamed wireless device is tunneled from the access switch where the wireless device has roamed (where it is currently attached) to the tunneling endpoint apparatus. When the wireless device roams across mobility sub-domains, then traffic is tunneled from the access switch where the wireless device is currently attached to the tunneling endpoint apparatus in that mobility sub-domain (called a “foreign” mobility sub-domain) to the tunneling endpoint apparatus in the wireless device's home mobility sub-domain.

Abstract translation: 提供技术以支持网络中的无线设备的漫游，使得无线设备可以在移动性子域内漫游时保持其互联网协议（IP）地址。 当无线设备从一个接入交换机漫游到另一个接入交换机时，无线设备的归属移动性子域中的隧道端点设备被配置为用作漫游无线设备的存在点。 漫游无线设备的业务从无线设备已经漫游（其当前附接的）的接入交换机隧道传送到隧道终端设备。 当无线设备漫游跨越移动性子域时，则将业务从无线设备当前附接到的接入交换机隧道传送到该移动性子域（称为“外部”移动性子域）的隧道端点设备， 隧道终端设备在无线设备的归属移动性子域中。

公开(公告)号：US08428006B2

公开(公告)日：2013-04-23

申请号：US12823227

申请日：2010-06-25

Applicant: Sudhir Jain ,  Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Ly Loi ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp

Inventor： Sudhir Jain ,  Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Ly Loi ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Fusun Ertemalp

IPC: H04W4/00

CPC classification number: H04W8/085 ,  H04W8/26

Abstract: A system and method for a hierarchical distributed control architecture to support roaming wireless client devices. Access switches serve one or more Internet Protocol (IP) subnets that include plural IP addresses. The access switches are arranged in switch peer groups and store information about other access switches in that switch peer group and about locations of wireless client devices that are associated with any access switch in the switch peer group. The access switches are further grouped into a corresponding mobility sub-domain each including plural switch peer groups. Plural controller devices control access switches in a corresponding mobility sub-domain. Each controller device stores information about the access switches and about locations of wireless client devices within its mobility sub-domain. A central controller device communicates with the controller devices for the respective mobility sub-domains. The central controller device stores information about locations of wireless client devices in the mobility sub-domains.

Abstract translation: 一种用于支持漫游无线客户端设备的分层分布式控制架构的系统和方法。 接入交换机提供包含多个IP地址的一个或多个因特网协议（IP）子网。 接入交换机被安排在交换机对等体组中，并且存储关于该交换机对等体组中的其他接入交换机的信息以及与交换机对等体组中的任何接入交换机相关联的无线客户端设备的位置。 接入交换机被进一步分组成每个包括多个交换对等体组的对应的移动性子域。 多个控制器设备控制相应移动性子域中的接入交换机。 每个控制器设备存储有关接入交换机的信息以及无线客户端设备在其移动性子域内的位置。 中央控制器设备与各个移动性子域的控制器设备进行通信。 中央控制器设备存储关于无线客户端设备在移动性子域中的位置的信息。

公开(公告)号：US08423668B2

公开(公告)日：2013-04-16

申请号：US11967931

申请日：2007-12-31

Applicant: Navindra Yadav ,  Suresh Katukam ,  Abhay Roy

Inventor： Navindra Yadav ,  Suresh Katukam ,  Abhay Roy

IPC: G06F15/173

CPC classification number: H04W40/30 ,  H04L45/025 ,  H04L45/04

Abstract: In one example embodiment, a system and method are shown that includes calculating a first SPF tree for a first device, the first SPF tree including a root node and a first child node, the first device being the root node of the first SPF tree. Additionally, the system and method may include calculating a second SPF tree for a second device that is a neighbor of the first device, the second SPF tree including a root node and a first child node, the second device being the root node of the second SPF tree. Further, the system and method may include building a set of interested nodes including the second device, if the first child node if the first SPF tree and the first child node of the second SPF tree are distinct.

Abstract translation: 在一个示例实施例中，示出了系统和方法，其包括为第一设备计算第一SPF树，第一SPF树包括根节点和第一子节点，第一设备是第一SPF树的根节点。 另外，该系统和方法可以包括为作为第一设备的邻居的第二设备计算第二SPF树，第二SPF树包括根节点和第一子节点，第二设备是第二设备的根节点 SPF树。 此外，所述系统和方法可以包括：如果第一子节点（如果第一SPF树和第二SPF树的第一子节点是不同的），则建立包括第二设备的一组感兴趣的节点。

公开(公告)号：US20130054784A1

公开(公告)日：2013-02-28

申请号：US13219773

申请日：2011-08-29

Applicant: Navindra Yadav ,  Atul Mahamuni

Inventor： Navindra Yadav ,  Atul Mahamuni

IPC: G06F15/173

CPC classification number: H04L43/0876 ,  H04L43/04 ,  H04L43/08 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/106 ,  H04L43/16 ,  H04L43/18

Abstract: Techniques are provided to facilitate monitoring of utility application traffic streams. At a network device that routes utility application traffic for utility devices, control information is received, where the control information is configured to cause the network device to monitor utility application traffic that passes through the network device. The network device monitors a header inserted into utility application traffic messages based on the control information.

Abstract translation: 提供技术以便于监控公用应用业务流。 在用于实用设备路由实用程序应用程序流量的网络设备上，接收控制信息，其中控制信息被配置为使得网络设备监视通过网络设备的应用程序流量。 网络设备基于控制信息监视插入到应用程序业务消息中的报头。

公开(公告)号：US08320567B2

公开(公告)日：2012-11-27

申请号：US11650082

申请日：2007-01-05

Applicant: Navindra Yadav ,  Sheausong Yang ,  Senthil Arunachalam ,  Bhanu Gopalasetty ,  Gnanaprakasam Pandian ,  Hiroshi Suzuki

Inventor： Navindra Yadav ,  Sheausong Yang ,  Senthil Arunachalam ,  Bhanu Gopalasetty ,  Gnanaprakasam Pandian ,  Hiroshi Suzuki

IPC: H04K1/00

CPC classification number: H04L63/0428 ,  H04W12/02

Abstract: In one embodiment, a method for processing encrypted wireless station data at a network device includes receiving from an access point, one or more frames comprising wireless station data fragmented into a plurality of encrypted protocol data units. The frames are configured to identify the encrypted protocol units associated with the wireless station data. The method further includes decrypting the encrypted protocol data units and forwarding the wireless station data. An apparatus for processing encrypted wireless station data, a method for transmitting encrypted multicast data for a wireless client, and a method for processing encrypted wireless station data at an access point are also disclosed.

Abstract translation: 在一个实施例中，一种用于在网络设备处理加密的无线站数据的方法包括：从接入点接收一个或多个帧，该帧包括分段成多个加密协议数据单元的无线站数据。 这些帧被配置为识别与无线站数据相关联的加密协议单元。 该方法还包括解密加密的协议数据单元并转发无线站数据。 还公开了一种用于处理加密的无线站数据的装置，用于发送用于无线客户端的加密多播数据的方法以及在接入点处理加密的无线站数据的方法。

公开(公告)号：US08200798B2

公开(公告)日：2012-06-12

申请号：US12027976

申请日：2008-02-07

Applicant: Navindra Yadav ,  Suresh Katukam ,  Abhay Roy

Inventor： Navindra Yadav ,  Suresh Katukam ,  Abhay Roy

IPC: G06F15/173

CPC classification number: H04L63/1466 ,  H04L29/12028 ,  H04L61/103 ,  H04L63/164

Abstract: In one embodiment, providing multi-layer address security incorporating Layer 2 Media Access Control (MAC) addresses and corresponding Layer 3 Internet Protocol (IP) addresses for host machines on a routed access network is provided.

Abstract translation: 在一个实施例中，提供了在路由接入网络上为主机提供并入第2层媒体访问控制（MAC）地址和相应的第3层因特网协议（IP）地址的多层地址安全性。

公开(公告)号：US20090168682A1

公开(公告)日：2009-07-02

申请号：US12027977

申请日：2008-02-07

Applicant: Suresh Katukam ,  Navindra Yadav ,  Shree Murthy ,  Abhay Roy

Inventor： Suresh Katukam ,  Navindra Yadav ,  Shree Murthy ,  Abhay Roy

IPC: H04H20/71 ,  H04L12/56

CPC classification number: H04W40/36 ,  H04L45/025

Abstract: In one embodiment, detecting a host device on a port of a forwarder switch in a network, detecting a movement of the host device from a first forwarder switch to a second forwarder switch, and multicast broadcasting an updated device information for the host device to a convergence group switches and a proximity group switches, where the convergence group switches includes switches in the network that are not configured as forwarder switches, and the proximity group switches include forwarder switches grouped together based on radio proximity is provided.

Abstract translation: 在一个实施例中，检测网络中的转发器交换机的端口上的主机设备，检测主机设备从第一转发器交换机到第二转发器交换机的移动，以及多播广播主机设备的更新设备信息到 汇聚组交换机和接近组交换机，其中收敛组交换机包括未配置为转发器交换机的网络中的交换机，并且提供接近组交换机包括基于无线电接近度分组在一起的转发器交换机。

公开(公告)号：US20070189189A1

公开(公告)日：2007-08-16

申请号：US11353319

申请日：2006-02-13

Applicant: Robert Andrews ,  Navindra Yadav ,  Shree Murthy ,  Gnanaprakasam Pandian

Inventor： Robert Andrews ,  Navindra Yadav ,  Shree Murthy ,  Gnanaprakasam Pandian

IPC: H04L12/28

CPC classification number: H04L12/4675 ,  H04L12/4695 ,  H04L41/0816

Abstract: Method and system for providing dynamic network data traffic monitoring including monitoring a data network, detecting a change in the data network, initiating a span session based on the detected change in the data network, and dynamically modifying network configuration based on the detected change in the data network is disclosed.

Abstract translation: 用于提供动态网络数据流量监控的方法和系统，包括监视数据网络，检测数据网络的变化，基于检测到的数据网络的变化启动跨度会话，以及基于检测到的数据网络中的变化动态地修改网络配置 数据网络被公开。

公开(公告)号：US20070189157A1

公开(公告)日：2007-08-16

申请号：US11353312

申请日：2006-02-13

Applicant: Robert Andrews ,  Navindra Yadav ,  Shree Murthy ,  Gnanaprakasam Pandian ,  Murali Duvvury ,  Sudhakar Padavala

Inventor： Robert Andrews ,  Navindra Yadav ,  Shree Murthy ,  Gnanaprakasam Pandian ,  Murali Duvvury ,  Sudhakar Padavala

IPC: H04J3/14

CPC classification number: H04L45/18 ,  H04L45/00 ,  H04L45/02 ,  H04L45/22

Abstract: Method and system for providing dynamic configuration of link redundancy in data network based on detection of dynamic changes in the network topology including the steps of detecting data network topology, determining a number of data paths from a node in the data network topology to each of a respective pair of peer nodes coupled to the node by a corresponding interface, determining a data path in the data network topology between the peer nodes, calculating a set of nodes reachable via each interface coupled to the node and the respective peer node in the data network topology, and comparing the set of calculated nodes is provided.

Abstract translation: 基于检测网络拓扑中的动态变化来提供数据网络中的链路冗余的动态配置的方法和系统，包括检测数据网络拓扑，确定从数据网络拓扑中的节点到数据网络拓扑中的每一个的数据路径 相应的一对对等节点通过对应的接口耦合到节点，确定对等节点之间的数据网络拓扑中的数据路径，计算经由耦合到该节点的每个接口和数据网络中的相应对等节点可到达的一组节点 提供拓扑结构，并比较计算出的节点集。

公开(公告)号：US08990892B2

公开(公告)日：2015-03-24

申请号：US13176857

申请日：2011-07-06

Applicant: Navindra Yadav ,  Atul Mahamuni ,  Jonathan Hui ,  Alec Woo

Inventor： Navindra Yadav ,  Atul Mahamuni ,  Jonathan Hui ,  Alec Woo

IPC: H04L29/06 ,  H04W12/06

CPC classification number: H04L63/0884 ,  H04W12/06

Abstract: Techniques are provided for adaptive routing of authentication packets in a network, such as a wireless mesh network. At an authenticated device in the network, an authentication packet is received over the network from a device that is seeking authentication. The authentication packet is encapsulated for transmission in Layer 3 packets over an Internet Protocol (IP) tunnel to an authenticator device associated in the network. Similarly, for an authentication packet encapsulated in Layer 3 packets from the authenticator device over the IP tunnel, the authentication packet is decapsulated from the Layer 3 packets and transmitted over the network to the device seeking authentication.

Abstract translation: 提供技术用于网络中的认证分组的自适应路由选择，例如无线网状网络。 在网络中的认证设备上，通过网络从正在寻求认证的设备接收认证报文。 认证分组被封装以通过到网络中相关联的认证设备的因特网协议（IP）隧道在三层分组中传输。 类似地，对于通过IP隧道从认证设备封装在三层报文中的认证报文，认证报文从三层报文中解封装，并通过网络发送到寻求认证的设备。