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公开(公告)号：US07656877B1
公开(公告)日：2010-02-02
申请号：US09935238
申请日：2001-08-21
申请人： Ishita Sharan , Feisal Y. Daruwalla
发明人： Ishita Sharan , Feisal Y. Daruwalla
CPC分类号： H04N7/17309 , H04H20/12 , H04L12/2801 , H04L43/028 , H04L43/062 , H04L43/12 , H04N21/2402 , H04N21/2408
摘要： Disclosed are methods and apparatus for selectively filtering data messages that are communicated between a head end complex and its associated cable modems. Filtering includes obtaining a copy of the message and sending the copied message to a memory device. The memory device is accessible, for example, via a user so that the filtered message may be analyzed. In a preferred embodiment, the memory device is a monitoring device in the form of a computer system (e.g., a router). Messages may be filtered to the memory or monitoring device based on any suitable filtering criteria that identifies specific message parameters. In a specific embodiment, filtering may be based on one or more message types. When filtering criteria specifies a particular message type, messages having such a specified type are filtered to the monitoring station. Additionally or alternatively, filtering may be based on one or more values of a particular field of the message. For instance, when filtering criteria is set to a particular field value, messages that contains that particular field value are copied and sent to the monitoring device. Filtering may also or alternatively be based on whether a message is associated with the downstream channel, the upstream channel, or a particular port number.
摘要翻译： 公开了用于选择性地过滤在头端复合体及其相关联的电缆调制解调器之间传送的数据消息的方法和装置。 过滤包括获得消息的副本并将复制的消息发送到存储器设备。 存储器设备例如可经由用户访问，以便可以分析经过滤的消息。 在优选实施例中，存储设备是计算机系统（例如，路由器）形式的监视设备。 可以基于识别特定消息参数的任何合适的过滤标准将消息过滤到存储器或监视设备。 在具体实施例中，过滤可以基于一种或多种消息类型。 当过滤条件指定特定的消息类型时，具有这种指定类型的消息被过滤到监控站。 另外或替代地，过滤可以基于消息的特定字段的一个或多个值。 例如，当将过滤条件设置为特定字段值时，将包含该特定字段值的消息复制并发送到监视设备。 过滤也可以或者替代地基于消息是否与下游信道，上行信道或特定端口号相关联。
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2.发明授权IP subnet sharing technique implemented without using bridging or routing protocols 有权实现IP子网共享技术而不使用桥接或路由协议公开(公告)号：US07895312B1
公开(公告)日：2011-02-22
申请号：US11607790
申请日：2006-12-01
申请人： Feisal Y. Daruwalla
发明人： Feisal Y. Daruwalla
IPC分类号： G06F15/173
CPC分类号： H04L12/2801 , H04L12/2856 , H04L12/2861 , H04L12/2874 , H04L29/12028 , H04L61/103
摘要： An IP subnet sharing technique is described which allows multiple network devices of an access network to share an IP subnet without the need for each network device to run complex routing protocols, or bridging protocols. Further, the multiple network devices are able to share an IP subnet without the need to subdivide the IP subnet into smaller groups.
摘要翻译： 描述了IP子网共享技术，其允许接入网络的多个网络设备共享IP子网，而不需要每个网络设备来运行复杂的路由协议或桥接协议。 此外，多个网络设备能够共享IP子网，而不需要将IP子网细分为更小的组。
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公开(公告)号：US07113484B1
公开(公告)日：2006-09-26
申请号：US09606503
申请日：2000-06-28
CPC分类号： H04L12/2801 , H04N21/242
摘要： A dynamic channel change technique is disclosed which may be implemented between nodes and a Head End of an access network. Initially a network device may communicate with the Head End via a first downstream channel and a first upstream channel. When the network device receives a dynamic channel change request which includes instructions for the network device to switch to a second downstream channel, the network device may respond by switching from the first downstream channel to the second downstream channel. Thereafter, the network device may communicate with the Head End via the second downstream channel and first upstream channel. Further, according to a specific embodiment, the dynamic channel change request may also include an upstream channel change request for causing the network device to switch from a first upstream channel to a second upstream channel.
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4.发明授权Technique and apparatus for using node ID as virtual private network (VPN) identifiers 有权使用节点ID作为虚拟专用网（VPN）标识符的技术和装置公开(公告)号：US06693878B1
公开(公告)日：2004-02-17
申请号：US09418469
申请日：1999-10-15
IPC分类号： H04L1256
CPC分类号： H04L45/00 , H04L12/2801 , H04L12/4641 , H04L45/50 , H04L63/0272
摘要： A technique is provided for managing VPN packet flows over shared access data networks. Each node in the shared access network typically has an identifier or ID associated with it which is used at a Head End of the shared access network to uniquely identify that particular node from the other nodes in the network. According to the technique of the present invention, the node ID may be used at the Head End of the network to identify not only the corresponding node, but also to identify any virtual private networks (VPNs) of which the corresponding node is a member. Using the technique of the present invention, nodes which are members of the same VPN within a shared access network may exchange packets in a manner which does not require the packets to be routed outside the shared access network.
摘要翻译： 提供了一种用于管理共享访问数据网络上的VPN数据包流的技术。 共享接入网络中的每个节点通常具有与其相关联的标识符或ID，其在共享接入网络的头端使用以从网络中的其他节点唯一地标识该特定节点。 根据本发明的技术，可以在网络的头端使用节点ID来识别不仅对应的节点，而且识别相应节点是其成员的任何虚拟专用网络（VPN）。 使用本发明的技术，在共享接入网络内作为同一VPN的成员的节点可以以不需要在共享接入网络外路由的分组的方式来交换分组。
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公开(公告)号：US07672230B2
公开(公告)日：2010-03-02
申请号：US11484249
申请日：2006-07-10
CPC分类号： H04L12/2801 , H04N21/242
摘要： A dynamic channel change technique is disclosed which may be implemented between nodes and a Head End of an access network. Initially a network device may communicate with the Head End via a first downstream channel and a first upstream channel. When the network device receives a dynamic channel change request which includes instructions for the network device to switch to a second downstream channel, the network device may respond by switching from the first downstream channel to the second downstream channel. Thereafter, the network device may communicate with the Head End via the second downstream channel and first upstream channel. Further, according to a specific embodiment, the dynamic channel change request may also include an upstream channel change request for causing the network device to switch from a first upstream channel to a second upstream channel.
摘要翻译： 公开了可以在接入网络的节点和头端之间实现的动态信道改变技术。 最初，网络设备可以经由第一下游信道和第一上行信道与头端进行通信。 当网络设备接收到包括用于网络设备切换到第二下行信道的指令的动态信道改变请求时，网络设备可以通过从第一下游信道切换到第二下游信道来进行响应。 此后，网络设备可以经由第二下游信道和第一上行信道与头端进行通信。 此外，根据具体实施例，动态信道改变请求还可以包括用于使网络设备从第一上行信道切换到第二上行信道的上行信道改变请求。
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6.发明授权Technique and apparatus for using node ID as virtual private network (VPN) identifiers 有权使用节点ID作为虚拟专用网（VPN）标识符的技术和装置公开(公告)号：US07974201B1
公开(公告)日：2011-07-05
申请号：US10758434
申请日：2004-01-14
IPC分类号： H04J1/16
CPC分类号： H04L45/00 , H04L12/2801 , H04L12/4641 , H04L45/50 , H04L63/0272
摘要： A technique is provided for managing VPN packet flows over shared access data networks. Each node in the shared access network typically has an identifier or ID associated with it which is used at a Head End of the shared access network to uniquely identify that particular node from the other nodes in the network. According to the technique of the present invention, the node ID may be used at the Head End of the network to identify not only the corresponding node, but also to identify any virtual private networks (VPNs) of which the corresponding node is a member. Using the technique of the present invention, nodes which are members of the same VPN within a shared access network may exchange packets in a manner which does not require the packets to be routed outside the shared access network.
摘要翻译： 提供了一种用于管理共享访问数据网络上的VPN数据包流的技术。 共享接入网络中的每个节点通常具有与其相关联的标识符或ID，其在共享接入网络的头端使用以从网络中的其他节点唯一地标识该特定节点。 根据本发明的技术，可以在网络的头端使用节点ID来识别不仅对应的节点，而且识别相应节点是其成员的任何虚拟专用网络（VPN）。 使用本发明的技术，在共享接入网络内作为同一VPN的成员的节点可以以不需要在共享接入网络外路由的分组的方式来交换分组。
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公开(公告)号：US07656890B2
公开(公告)日：2010-02-02
申请号：US11484288
申请日：2006-07-10
CPC分类号： H04L12/2801 , H04N21/242
摘要： A dynamic channel change technique is disclosed which may be implemented between nodes and a Head End of an access network. Initially a network device may communicate with the Head End via a first downstream channel and a first upstream channel. When the network device receives a dynamic channel change request which includes instructions for the network device to switch to a second downstream channel, the network device may respond by switching from the first downstream channel to the second downstream channel. Thereafter, the network device may communicate with the Head End via the second downstream channel and first upstream channel. Further, according to a specific embodiment, the dynamic channel change request may also include an upstream channel change request for causing the network device to switch from a first upstream channel to a second upstream channel.
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8.发明授权IP subnet sharing technique implemented without using bridging or routing protocols 有权实现IP子网共享技术而不使用桥接或路由协议公开(公告)号：US07174376B1
公开(公告)日：2007-02-06
申请号：US10187035
申请日：2002-06-28
申请人： Feisal Y. Daruwalla
发明人： Feisal Y. Daruwalla
IPC分类号： G06F15/173
CPC分类号： H04L12/2801 , H04L12/2856 , H04L12/2861 , H04L12/2874 , H04L29/12028 , H04L61/103
摘要： An IP subnet sharing technique is described which allows multiple network devices of an access network to share an IP subnet without the need for each network device to run complex routing protocols, or bridging protocols. Further, the multiple network devices are able to share an IP subnet without the need to subdivide the IP subnet into smaller groups.
摘要翻译： 描述了IP子网共享技术，其允许接入网络的多个网络设备共享IP子网，而不需要每个网络设备来运行复杂的路由协议或桥接协议。 此外，多个网络设备能够共享IP子网，而不需要将IP子网细分为更小的组。
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