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：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：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：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：US20080298277A1

公开(公告)日：2008-12-04

申请号：US12192935

申请日：2008-08-15

申请人： Hemant SINGH ,  William Beebee ,  Madhu Sudan ,  Joshua Littelfield

发明人： Hemant SINGH ,  William Beebee ,  Madhu Sudan ,  Joshua Littelfield

IPC分类号： H04L12/28 ,  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：US20110170542A1

公开(公告)日：2011-07-14

申请号：US12686314

申请日：2010-01-12

申请人： Tong Liu ,  Yie-Fong Dan ,  Pawel Sowinski ,  Chad Mikkelson ,  William Beebee

发明人： Tong Liu ,  Yie-Fong Dan ,  Pawel Sowinski ,  Chad Mikkelson ,  William Beebee

IPC分类号： H04L12/56

CPC分类号： H04L12/18 ,  H04L47/12 ,  H04L47/22 ,  H04L47/2408 ,  H04L47/2425

摘要： A system includes a forwarding engine to schedule when replicas of a received multicast packet are forwarded towards one or more multicast recipients. The system also includes an egress interface device to replicate the multicast packet and forward the multicast packet replica towards the one or more multicast recipients when prompted by the forwarding engine based on the scheduling.

摘要翻译： 系统包括转发引擎，用于调度所接收的多播分组的副本是否向一个或多个多播接收者转发。 该系统还包括出口接口设备，用于复制多播分组，并且基于调度在由转发引擎提示时将多播分组副本转发到一个或多个多播接收者。

公开(公告)号：US08711752B2

公开(公告)日：2014-04-29

申请号：US12686314

申请日：2010-01-12

申请人： Tong Liu ,  Yie-Fong Dan ,  Pawel Sowinski ,  Chad Mikkelson ,  William Beebee

发明人： Tong Liu ,  Yie-Fong Dan ,  Pawel Sowinski ,  Chad Mikkelson ,  William Beebee

IPC分类号： H04H20/71

CPC分类号： H04L12/18 ,  H04L47/12 ,  H04L47/22 ,  H04L47/2408 ,  H04L47/2425

摘要： A system includes a forwarding engine to schedule when replicas of a received multicast packet are forwarded towards one or more multicast recipients. The system also includes an egress interface device to replicate the multicast packet and forward the multicast packet replica towards the one or more multicast recipients when prompted by the forwarding engine based on the scheduling.

摘要翻译： 系统包括转发引擎，用于调度所接收的多播分组的副本是否向一个或多个多播接收者转发。 该系统还包括出口接口设备，用于复制多播分组，并且基于调度在由转发引擎提示时将多播分组副本转发到一个或多个多播接收者。