公开(公告)号：US08102854B2

公开(公告)日：2012-01-24

申请号：US12192935

申请日：2008-08-15

申请人： Hemant Singh ,  William Beebee ,  Madhu Sudan ,  Joshua Littlefield

发明人： Hemant Singh ,  William Beebee ,  Madhu Sudan ,  Joshua Littlefield

IPC分类号： H04L12/56

CPC分类号： H04L12/2801 ,  H04L12/66 ,  H04L45/00

摘要： A network device is to receive traffic including neighbor discovery messages from requesting customer devices, and can detect the neighbor discovery messages within the traffic according to a distributed inspection scheme that includes the network device and a remote component. The network device is to then examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.

摘要翻译： 网络设备是从请求客户设备接收包括邻居发现消息的流量，并且可以根据包括网络设备和远程组件的分布式检查方案来检测流量内的邻居发现消息。 网络设备然后检查邻居发现消息，以确定邻居发现消息是否应转发给其他客户设备，并响应请求的客户设备。

公开(公告)号：US08886834B2

公开(公告)日：2014-11-11

申请号：US12967387

申请日：2010-12-14

申请人： Hemant Singh ,  William Beebee ,  Madhu Sudan

发明人： Hemant Singh ,  William Beebee ,  Madhu Sudan

IPC分类号： G06F15/16 ,  H04L12/66 ,  H04L12/751 ,  H04L12/24 ,  H04L29/08 ,  H04L29/14

CPC分类号： H04L12/66 ,  H04L41/0663 ,  H04L45/02 ,  H04L67/142 ,  H04L67/145 ,  H04L69/40

摘要： Techniques are provided herein for receiving synchronization messages at a second network device that is in a hot standby configuration from a first network device that is maintaining Internet Protocol version 6 (IPv6) state machines for one or more neighbor devices. The synchronization messages are configured to indicate an IPv6 state for each state machine maintained in the first network device. An IPv6 state for corresponding state machines is updated in the second network device based on the synchronization messages such that the IPv6 states in the second network device allows the second network device to actively process IPv6 traffic for the one or more neighbor devices upon traffic switchover from the first network device to the second network device without restarting the corresponding IPv6 state machine associated with each of the one or more neighbor devices in the second network device. The roles of the first and second device with respect to active and standby state are reversed after a switchover.

摘要翻译： 本文提供了用于在处于来自维护用于一个或多个相邻设备的因特网协议版本6（IPv6）状态机的第一网络设备的处于热备用配置的第二网络设备处接收同步消息的技术。 同步消息被配置为指示在第一网络设备中维护的每个状态机的IPv6状态。 基于同步消息，在第二网络设备中更新对应状态机的IPv6状态，使得第二网络设备中的IPv6状态允许第二网络设备在流量切换时主动处理一个或多个相邻设备的IPv6流量 所述第一网络设备到所述第二网络设备，而不重新启动与所述第二网络设备中的所述一个或多个相邻设备中的每一个相关联的相应的IPv6状态机。 第一个和第二个设备在主动和待机状态下的角色在切换后是相反的。

公开(公告)号：US09184930B2

公开(公告)日：2015-11-10

申请号：US12480623

申请日：2009-06-08

申请人： Hemant Singh ,  William Beebee ,  Madhu Sudan

发明人： Hemant Singh ,  William Beebee ,  Madhu Sudan

IPC分类号： H04L12/28 ,  H04L29/12

CPC分类号： H04L12/2801 ,  H04L61/2015 ,  H04L61/2076 ,  H04L61/6086

摘要： A network processing device is configured to receive a configuration message from a host device and forward the configuration message to a server. The configuration message can be configured to request the server assign an Internet Protocol (IP) address to the host device. The network processing device can be configured to send at least one probe message to the host device responsive to receiving the configuration message. The network processing device can be configured to determine whether the host device intends to continue utilizing a previously assigned IP address in addition to the IP address requested by the configuration message based, at least in part, on any responses to the at least one probe message received from the host device.

摘要翻译： 网络处理设备被配置为从主机设备接收配置消息，并将配置消息转发到服务器。 配置消息可以被配置为请求服务器向主机设备分配互联网协议（IP）地址。 网络处理设备可以被配置为响应于接收到配置消息而向主机设备发送至少一个探测消息。 网络处理设备可以被配置为至少部分地基于对至少一个探测消息的任何响应来确定除了配置消息所请求的IP地址之外，主机设备是否继续继续利用先前分配的IP地址 从主机设备接收。

公开(公告)号：US09654331B1

公开(公告)日：2017-05-16

申请号：US13358190

申请日：2012-01-25

申请人： Hemant Singh ,  William Beebee ,  Madhu Sudan ,  Chad Mikkelson

发明人： Hemant Singh ,  William Beebee ,  Madhu Sudan ,  Chad Mikkelson

IPC分类号： G06F15/173 ,  H04L29/08

CPC分类号： H04L29/08072 ,  H04L61/103 ,  H04L61/2015 ,  H04L61/6022 ,  H04L61/6059

摘要： A method is provided in one example and includes determining that an access concentrator has lost customer premise equipment information. The method also includes obtaining the customer premise equipment information that is lost by evaluating Neighbor Discovery data and dynamic host configuration protocol version six (DHCPv6) query data. In more specific implementations, the method may include communicating a Bulk Leasequery message; receiving a response to the Bulk Leasequery message; and filtering out cable modem identifiers from the response to the Bulk Leasequery message.

公开(公告)号：US20120151085A1

公开(公告)日：2012-06-14

申请号：US12967387

申请日：2010-12-14

申请人： Hemant Singh ,  William Beebee ,  Madhu Sudan

发明人： Hemant Singh ,  William Beebee ,  Madhu Sudan

IPC分类号： G06F15/16

CPC分类号： H04L12/66 ,  H04L41/0663 ,  H04L45/02 ,  H04L67/142 ,  H04L67/145 ,  H04L69/40

摘要： Techniques are provided herein for receiving synchronization messages at a second network device that is in a hot standby configuration from a first network device that is maintaining Internet Protocol version 6 (IPv6) state machines for one or more neighbor devices. The synchronization messages are configured to indicate an IPv6 state for each state machine maintained in the first network device. An IPv6 state for corresponding state machines is updated in the second network device based on the synchronization messages such that the IPv6 states in the second network device allows the second network device to actively process IPv6 traffic for the one or more neighbor devices upon traffic switchover from the first network device to the second network device without restarting the corresponding IPv6 state machine associated with each of the one or more neighbor devices in the second network device. The roles of the first and second device with respect to active and standby state are reversed after a switchover.

摘要翻译： 本文提供了用于在处于来自维护用于一个或多个相邻设备的因特网协议版本6（IPv6）状态机的第一网络设备的处于热备用配置的第二网络设备处接收同步消息的技术。 同步消息被配置为指示在第一网络设备中维护的每个状态机的IPv6状态。 基于同步消息，在第二网络设备中更新对应状态机的IPv6状态，使得第二网络设备中的IPv6状态允许第二网络设备在流量切换时主动处理一个或多个相邻设备的IPv6流量 所述第一网络设备到所述第二网络设备，而不重新启动与所述第二网络设备中的所述一个或多个相邻设备中的每一个相关联的相应的IPv6状态机。 第一个和第二个设备在主动和待机状态下的角色在切换后是相反的。

公开(公告)号：US20100309813A1

公开(公告)日：2010-12-09

申请号：US12480623

申请日：2009-06-08

申请人： Hemant Singh ,  William Beebee ,  Madhu Sudan

发明人： Hemant Singh ,  William Beebee ,  Madhu Sudan

IPC分类号： H04L12/28

CPC分类号： H04L12/2801 ,  H04L61/2015 ,  H04L61/2076 ,  H04L61/6086

摘要： A network processing device is configured to receive a configuration message from a host device and forward the configuration message to a server. The configuration message can be configured to request the server assign an Internet Protocol (IP) address to the host device. The network processing device can be configured to send at least one probe message to the host device responsive to receiving the configuration message. The network processing device can be configured to determine whether the host device intends to continue utilizing a previously assigned IP address in addition to the IP address requested by the configuration message based, at least in part, on any responses to the at least one probe message received from the host device.

摘要翻译： 网络处理设备被配置为从主机设备接收配置消息，并将配置消息转发到服务器。 配置消息可以被配置为请求服务器向主机设备分配互联网协议（IP）地址。 网络处理设备可以被配置为响应于接收到配置消息而向主机设备发送至少一个探测消息。 网络处理设备可以被配置为至少部分地基于对至少一个探测消息的任何响应，来确定除了配置消息所请求的IP地址之外，主机设备是否继续继续利用先前分配的IP地址 从主机设备接收。

公开(公告)号：US08437360B2

公开(公告)日：2013-05-07

申请号：US11939647

申请日：2007-11-14

申请人： Hemant Singh ,  Madhu Sudan ,  Shengyou Zeng

发明人： Hemant Singh ,  Madhu Sudan ,  Shengyou Zeng

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04J3/24 ,  G06F15/173

CPC分类号： H04N21/64322 ,  H04L61/2015 ,  H04L61/6022 ,  H04L61/6059 ,  H04N21/41 ,  H04N21/443 ,  H04N21/6118

摘要： A CMTS or other data aggregation component having a DHCPv6 relay agent extracts a Media Access Control (MAC) address of an end device from a data packet received from an end device. A DHCPv6 data frame is created for transmission to a DHCPv6 server. The MAC address may be inserted into a specific option of the DHCPv6 data frame, where data in the option may not be processed by the server and are echoed back to the aggregation component or CMTS. The DHCPv6 data frame is transmitted to the DHCPv6 server. The component receives a response message from the server that may contain the MAC address or similar client hardware address as it was sent to the server by the network component. The network component may determine an outgoing port interface from which the response message should be sent, utilizing the MAC address and an interface bundling table. In this manner, interface bundling may be enabled.

摘要翻译： 具有DHCPv6中继代理的CMTS或其他数据聚合组件从从终端设备接收的数据分组中提取终端设备的媒体访问控制（MAC）地址。 创建DHCPv6数据帧以传输到DHCPv6服务器。 MAC地址可以插入到DHCPv6数据帧的特定选项中，其中该选项中的数据可能不被服务器处理，并被回送到聚合组件或CMTS。 DHCPv6数据帧发送到DHCPv6服务器。 该组件从服务器接收可能包含由网络组件发送到服务器的MAC地址或类似客户端硬件地址的响应消息。 网络组件可以使用MAC地址和接口绑定表来确定应该从中发送响应消息的出端口接口。 以这种方式，可以启用接口捆绑。

公开(公告)号：US20110182295A1

公开(公告)日：2011-07-28

申请号：US12692367

申请日：2010-01-22

申请人： Hemant Singh ,  William Beebee, JR. ,  Ralph Droms ,  Ole Troan

发明人： Hemant Singh ,  William Beebee, JR. ,  Ralph Droms ,  Ole Troan

IPC分类号： H04L12/56

CPC分类号： H04L41/0803 ,  H04L29/12226 ,  H04L41/0816 ,  H04L61/2015 ,  H04L61/6059

摘要： Techniques for automatically identifying an edge-facing router in a network are provided.

摘要翻译： 提供了一种用于自动识别网络中边缘路由器的技术。

公开(公告)号：US08576857B2

公开(公告)日：2013-11-05

申请号：US12692367

申请日：2010-01-22

申请人： Hemant Singh ,  William Beebee, Jr. ,  Ralph Droms ,  Ole Troan

发明人： Hemant Singh ,  William Beebee, Jr. ,  Ralph Droms ,  Ole Troan

IPC分类号： H04L12/56

CPC分类号： H04L41/0803 ,  H04L29/12226 ,  H04L41/0816 ,  H04L61/2015 ,  H04L61/6059

摘要： Techniques for automatically identifying an edge-facing router in a network are provided. In one technique, data is obtained at a first router of a subscriber network. The data may be included in a DHCP message or a NDP RA message. The first router determines, based on the data, whether the first router is a service provider (SP)-facing router, which is a router that is coupled to a SP router and no other router in the subscriber network is logically between the SP-facing router and the SP router. If it is determined that the first router is an SP-facing router, then the first router stores identification data that identifies the first router as an SP-facing router. Otherwise, the first router stores identification data that identifies the first router as a non-SP-facing router.

摘要翻译： 提供了一种用于自动识别网络中边缘路由器的技术。 在一种技术中，在用户网络的第一路由器处获得数据。 数据可以包括在DHCP消息或NDP RA消息中。 第一路由器基于数据确定第一路由器是否是服务提供商（SP）路由器，其是耦合到SP路由器的路由器，并且订户网络中的其他路由器在逻辑上在SP- 面向路由器和SP路由器。 如果确定第一路由器是面向SP的路由器，则第一路由器将标识第一路由器的标识数据存储为面向SP的路由器。 否则，第一路由器将标识第一路由器的识别数据存储为非面向SP的路由器。

公开(公告)号：US20080009544A1

公开(公告)日：2008-01-10

申请号：US11688359

申请日：2007-03-20

申请人： Janaswamy Rao ,  Bhimapaka Raju ,  Pullela Srinivas ,  Katragadda Babu ,  Jhillu Yadav ,  Kondapuram Raghvan ,  Hemant Singh ,  Chandiswar Nath

发明人： Janaswamy Rao ,  Bhimapaka Raju ,  Pullela Srinivas ,  Katragadda Babu ,  Jhillu Yadav ,  Kondapuram Raghvan ,  Hemant Singh ,  Chandiswar Nath

IPC分类号： A61K31/353 ,  A61P25/28

CPC分类号： A61K31/37

摘要： A pharmaceutical composition useful as acetylcholinesterase inhibitors. The present invention relates to pharmaceutical composition comprising the naturally occurring compounds selected from (±) Marmesin, Columbianetin, Dihydroxanthyletin and substituted coumarin derivatives of 7-allyloxy coumarin, 7-benzyloxy coumarin, 7-methoxy coumarin, 7-acetyloxy coumarin, 4-methyl-7-hydroxy coumarin and 4-methyl-7-acetyloxy coumarin. The said compositions posses a high degree of acetylcholinesterase inhibitory (AChE) property.

摘要翻译： 用作乙酰胆碱酯酶抑制剂的药物组合物。 本发明涉及包含天然存在的化合物的药物组合物，所述化合物选自（±）马尔西辛，哥伦比亚甜素，二羟基黄酮和7-烯丙氧基香豆素的取代香豆素衍生物，7-苄氧基香豆素，7-甲氧基香豆素，7-乙酰氧基香豆素，4-甲基 -7-羟基香豆素和4-甲基-7-乙酰氧基香豆素。 所述组合物具有高度的乙酰胆碱酯酶抑制（AChE）特性。