公开(公告)号：US08675601B2

公开(公告)日：2014-03-18

申请号：US12781120

申请日：2010-05-17

Applicant: Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Ranganatha Marathe ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Sreenivasulu Mondem

Inventor： Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Ranganatha Marathe ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Sreenivasulu Mondem

IPC: H04W4/00

CPC classification number: H04W76/12 ,  H04W36/0016 ,  H04W36/10

Abstract: Techniques are provided to enable a support for guest access of devices in a network. At a controller apparatus in a first mobility sub-domain of a network comprising a plurality of mobility sub-domains, a request message containing a request for guest network access for a device is received from a first access switch in the first mobility sub-domain. The controller apparatus forwards the request message to a guest controller. At a tunneling endpoint apparatus in the first mobility sub-domain, a tunnel is established to the guest controller to carry traffic between the device and the guest controller. Traffic for the device passes in a tunnel between the first access switch and the tunneling endpoint apparatus in the first mobility sub-domain, through the tunneling endpoint apparatus in the first mobility sub-domain and in the tunnel between the routing apparatus in the first mobility sub-domain and the guest controller.

Abstract translation: 提供技术以支持对网络中设备的访客访问。 在包括多个移动性子域的网络的第一移动性子域中的控制器装置处，从第一移动性子域中的第一接入交换机接收到包含用于设备的访客网络接入请求的请求消息 。 控制器装置将请求消息转发给客人控制器。 在第一移动子域中的隧道终端设备处，建立到客户控制器的隧道，以在设备和客户控制器之间携带业务。 该设备的业务通过第一移动性子域中的第一接入交换机和隧道终端设备之间的隧道，通过第一移动性子域中的隧道终端设备和第一移动性子域中的路由设备之间的隧道 子域和访客控制器。

公开(公告)号：US20130100952A1

公开(公告)日：2013-04-25

申请号：US13280835

申请日：2011-10-25

Applicant: Brian Donald HART ,  Santosh Pandey ,  Rohit Suri

Inventor： Brian Donald HART ,  Santosh Pandey ,  Rohit Suri

IPC: H04L12/56 ,  H04J3/26

CPC classification number: H04L12/1868

Abstract: Described herein are techniques that provide for the transmission of a multicast stream that can resend frames that were not received using the partial state block acknowledgement mechanism. In an example embodiment, an access point reserves a channel for a transmission opportunity of a sufficient length to allow the sending of multicast data, block acknowledgement request, and receipt of a block acknowledgement. Optionally, the transmission opportunity may be of sufficient length to enable packets that re resent to be sent during the transmission opportunity, thereby preventing other stations on the channel from gaining control of the channel. Alternatively the access point may employ an appropriate backoff between TXOPs to AP prevent (T)DLS traffic to the recipients of the multicast stream. The access point does not send any frames from other queues during the transmission opportunity.

Abstract translation: 这里描述了提供可以使用部分状态块确认机制重新发送未被接收的帧的多播流的传输的技术。 在示例实施例中，接入点保留用于具有足够长度的传输机会的信道，以允许多播数据的发送，块确认请求和块确认的接收。 可选地，传输机会可以具有足够的长度以使得在传输机会期间重新发送的分组能够被阻止，从而防止信道上的其他站获得信道的控制。 或者，接入点可以在TXOP到AP之间采用适当的退避，以防止（T）DLS流量到组播流的接收者。 在传输机会期间，接入点不会从其他队列发送任何帧。

公开(公告)号：US08315197B2

公开(公告)日：2012-11-20

申请号：US12020331

申请日：2008-01-25

Applicant: Norman W. Finn ,  Robert O'Hara ,  Rohit Suri ,  Josh Broch

Inventor： Norman W. Finn ,  Robert O'Hara ,  Rohit Suri ,  Josh Broch

IPC: H04H1/00 ,  H04Q7/24 ,  H04L12/28

CPC classification number: H04W72/0446 ,  H04L12/462 ,  H04W4/16 ,  H04W72/0406 ,  H04W72/0426 ,  H04W88/08 ,  H04W92/02

Abstract: In one embodiment, a transmitting node may be configured to transmit a wireless advertisement frame over a computer network, wherein the frame includes a source address of a reachable node being advertised, a destination address to which the reachable node is to be advertised, a transmitter address of the transmitting node, and a receiver address of a wireless access point to which the wireless advertisement frame is to be received. Also, the wireless access point may be configured to receive the wireless advertisement frame from the network, and in response, transmit a reflected wireless advertisement frame having the source address of the reachable node, the destination address to which the reachable node is to be advertised, a transmitter address of the access point, and a receiver address that indicates the reflected frame is to be accepted by any appropriate receiver excluding the transmitting node.

Abstract translation: 在一个实施例中，发送节点可以被配置为在计算机网络上发送无线广告帧，其中，该帧包括正在被通告的可到达节点的源地址，可到达节点要被通告的目的地地址，发射机 发送节点的地址，以及要接收无线广告帧的无线接入点的接收器地址。 此外，无线接入点可以被配置为从网络接收无线广告帧，并且作为响应，发送具有可达节点的源地址的反射的无线广告帧，可到达节点要被通告的目的地地址 ，接入点的发射机地址和指示反射帧的接收机地址将由除发射节点之外的任何适当的接收机接受。

公开(公告)号：US20110280213A1

公开(公告)日：2011-11-17

申请号：US12781120

申请日：2010-05-17

Applicant: Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Ranganatha Marathe ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Sreenivasulu Mondem

Inventor： Patrice Calhoun ,  Abhijit Choudhury ,  Rohit Suri ,  Sudhir Jain ,  Ranganatha Marathe ,  Bhanu Gopalasetty ,  Navindra Yadav ,  Sreenivasulu Mondem

IPC: H04W36/10 ,  H04W72/04

CPC classification number: H04W76/12 ,  H04W36/0016 ,  H04W36/10

Abstract: Techniques are provided to enable a support for guest access of devices in a network. At a controller apparatus in a first mobility sub-domain of a network comprising a plurality of mobility sub-domains, a request message containing a request for guest network access for a device is received from a first access switch in the first mobility sub-domain. The controller apparatus forwards the request message to a guest controller. At a tunneling endpoint apparatus in the first mobility sub-domain, a tunnel is established to the guest controller to carry traffic between the device and the guest controller. Traffic for the device passes in a tunnel between the first access switch and the tunneling endpoint apparatus in the first mobility sub-domain, through the tunneling endpoint apparatus in the first mobility sub-domain and in the tunnel between the routing apparatus in the first mobility sub-domain and the guest controller.

Abstract translation: 提供技术以支持对网络中设备的访客访问。 在包括多个移动性子域的网络的第一移动性子域中的控制器装置处，从第一移动性子域中的第一接入交换机接收到包含用于设备的访客网络接入请求的请求消息 。 控制器装置将请求消息转发给客人控制器。 在第一移动子域中的隧道终端设备处，建立到客户控制器的隧道，以在设备和客户控制器之间携带业务。 该设备的业务通过第一移动性子域中的第一接入交换机和隧道终端设备之间的隧道，通过第一移动性子域中的隧道终端设备和第一移动性子域中的路由设备之间的隧道 子域和访客控制器。

公开(公告)号：US20110274037A1

公开(公告)日：2011-11-10

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: H04W40/00

CPC classification number: H04W8/085 ,  H04W8/26

Abstract: A system and method are provided for a hierarchical distributed control architecture to support roaming of wireless client devices. A plurality of access switches are provided and configured to serve one or more Internet Protocol (IP) subnets that comprises a plurality of IP addresses. The plurality of access switches are arranged in switch peer groups such that each access switch within a given switch peer group is configured to store information about other access switches in that switch peer group and about locations of wireless client devices that are associated with any wireless access point on any access switch in the switch peer group. The plurality of access switches are further grouped into a corresponding one of a plurality of mobility sub-domains each comprising a plurality of switch peer groups. A plurality of controller devices are provided, each configured to control access switches in a corresponding mobility sub-domain. Each controller device stores information about the plurality of access switches within its mobility sub-domain and about locations of wireless client devices at access switches in its mobility sub-domain. A central controller device is provided and configured to communicate with the plurality of controller devices for the respective mobility sub-domains. The central controller device is configured to store information about locations of wireless client devices in the mobility sub-domains.

Abstract translation: 提供了一种用于分级分布式控制架构以支持无线客户端设备的漫游的系统和方法。 多个接入交换机被提供和配置为服务于包括多个IP地址的一个或多个因特网协议（IP）子网。 多个接入交换机布置在交换对等体组中，使得给定交换机对等体组内的每个接入交换机被配置为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任何无线接入相关联的无线客户端设备的位置 指向交换机对等体组中的任何接入交换机。 多个接入交换机被进一步分组成多个移动性子域中的每个包括多个交换对等体组的对应的一个。 提供了多个控制器设备，每个控制器设备被配置为控制相应的移动性子域中的接入交换机。 每个控制器设备将关于多个接入交换机的信息存储在其移动性子域内以及关于移动性子域中的接入交换机处的无线客户端设备的位置。 中央控制器设备被提供和配置成与用于各个移动性子域的多个控制器设备进行通信。 中央控制器设备被配置为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：US20110274035A1

公开(公告)日：2011-11-10

申请号：US12773355

申请日：2010-05-04

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

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

IPC: H04W40/00

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

Abstract: Techniques are provided for seamless integration of wired and wireless functionality packet forwarding in network. A plurality of access switches are provided in each of a plurality of mobility sub-domains that are part of a mobility domain of a network. Each access switch serves one or more Internet Protocol (IP) subnets, each comprising a plurality of IP addresses. An access switch obtains an IP address for a wireless device according to the one or more IP subnets that the access switch serves. The access switch sends an association advertisement message to indicate the IP address of the wireless device and to enable other access switches and routers to compute a path to the wireless device. When a wireless device obtains an IP address, it can keep the same IP address as it roams in the mobility domain.

Abstract translation: 为网络中有线和无线功能数据包转发的无缝集成提供了技术。 在作为网络的移动性域的一部分的多个移动性子域中的每一个中提供多个接入交换机。 每个接入交换机提供一个或多个互联网协议（IP）子网，每个网络包括多个IP地址。 接入交换机根据接入交换机所服务的一个或多个IP子网获取无线设备的IP地址。 接入交换机发送关联广告消息以指示无线设备的IP地址，并使得其他接入交换机和路由器能够计算到无线设备的路径。 当无线设备获得IP地址时，它可以保持与移动域中漫游相同的IP地址。