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1. 发明授权

US08339959B1 Streamlined packet forwarding using dynamic filters for routing and security in a shared forwarding plane 有权
标题翻译：在共享转发平面中使用动态过滤器进行路由和安全性的简化数据包转发
公开(公告)号：US08339959B1
公开(公告)日：2012-12-25
申请号：US12182619
申请日：2008-07-30
申请人： Jerome P. Moisand , Jean-Marc Frailong , Krishna Narayanaswamy , Oren Melamud , Paul J. Kirner
发明人： Jerome P. Moisand , Jean-Marc Frailong , Krishna Narayanaswamy , Oren Melamud , Paul J. Kirner
IPC分类号： H04L12/26
CPC分类号： H04L45/60 , H04L45/302 , H04L45/306 , H04L63/0236 , H04L63/0263 , H04L63/1408 , H04L63/145
摘要： A network router includes a plurality of interfaces configured to send and receive packets, and a routing component comprising: (i) a routing engine that includes a control unit that executes a routing protocol to maintain routing information specifying routes through a network, and (ii) a forwarding plane configured by the routing engine to select next hops for the packets in accordance with the routing information. The forwarding plane comprises a switch fabric to forward the packets to the interfaces based on the selected next hops. The network router also includes a security plane configured to apply security functions to the packets. The security plane is integrated within the network router to share a streamlined forwarding plane of the routing component.
摘要翻译：网络路由器包括被配置为发送和接收分组的多个接口，以及路由组件，包括：（i）路由引擎，其包括执行路由协议以控制通过网络指定路由的路由信息的控制单元，）由路由引擎配置的转发平面，以根据路由信息为分组选择下一跳。转发平面包括基于所选择的下一跳将数据包转发到接口的交换结构。网络路由器还包括一个安全平面，配置为对数据包应用安全功能。安全平面集成在网络路由器内，以共享路由组件的流线型转发平面。

2. 发明授权

US07944918B2 Dynamic building of VLAN interfaces based on subscriber information strings 有权
标题翻译：基于用户信息字符串动态构建VLAN接口
公开(公告)号：US07944918B2
公开(公告)日：2011-05-17
申请号：US12369487
申请日：2009-02-11
申请人： Linda M. Cabeca , Mathias Kokot , Jerome P. Moisand , Vitali Vinokour , Thomas Lemaire , Karen Ruben
发明人： Linda M. Cabeca , Mathias Kokot , Jerome P. Moisand , Vitali Vinokour , Thomas Lemaire , Karen Ruben
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/4645 , H04L12/4675 , H04L45/52
摘要： Techniques are described that allow a network device, such as a router, to dynamically build VLAN interfaces based on subscriber information strings included within packets. In particular, the network device comprises an interface controller and a forwarding controller, where the forwarding controller receives the packet over an Ethernet port and forwards the received packet to the interface controller. The packet includes both Ethernet tagging information and a subscriber information string. The interface controller comprises an Ethernet module that dynamically builds a primary virtual local area network (VLAN) sub-interface (PVS) based on the Ethernet tagging information. The Ethernet module also dynamically builds a subscriber VLAN sub-interface (SVS) based on the subscriber information string. The SVS allows the network device to distinguish between subscribers residing on the same VLAN, and, therefore, to provide subscriber specific services.
摘要翻译：描述了允许网络设备（例如路由器）基于分组中包括的订户信息字符串动态构建VLAN接口的技术。特别地，网络设备包括接口控制器和转发控制器，转发控制器通过以太网端口接收分组，并将接收的分组转发给接口控制器。分组包括以太网标记信息和用户信息字符串。接口控制器包括基于以太网标签信息动态构建主虚拟局域网（VLAN）子接口（PVS）的以太网模块。以太网模块还根据用户信息字符串动态构建用户VLAN子接口（SVS）。 SVS允许网络设备区分驻留在同一个VLAN上的用户，从而提供用户特定的服务。

3. 发明授权

US08098671B1 Monitoring datagrams in a data network 有权
标题翻译：监控数据网络中的数据报
公开(公告)号：US08098671B1
公开(公告)日：2012-01-17
申请号：US11207934
申请日：2005-08-22
申请人： Denis DeRuijter , Steve Onishi , Jerome P. Moisand
发明人： Denis DeRuijter , Steve Onishi , Jerome P. Moisand
IPC分类号： H04L12/28
CPC分类号： H04L65/105 , H04L41/5009 , H04L65/1006 , H04L65/608 , H04L65/80
摘要： A communication session over a network is facilitated. A signaling datagram from a source device having a source identity may be intercepted by a network device, and a response datagram may be generated for instructing the source device to send a subsequent datagram to the network device. The signaling datagram may be forwarded to a SIP server, where the SIP server associates the source identity with the network device acting on behalf of the source device, and where the SIP server operates to connect a destination device with the source device to establish a communication session over the network. The subsequent datagram may be received from the source device, and the subsequent datagram may be made available to the destination device via the network.
摘要翻译：促进了通过网络的通信会话。具有源标识的源设备的信令数据报可能被网络设备拦截，并且可以生成响应数据报，用于指示源设备向网络设备发送后续数据报。信令数据报可以转发到SIP服务器，其中SIP服务器将源标识与代表源设备的网络设备相关联，并且其中SIP服务器操作以将目的地设备与源设备连接以建立通信通过网络进行会话可以从源设备接收后续数据报，并且后续数据报可以经由网络对目的地设备可用。

4. 发明授权

US07983258B1 Dynamic virtual local area network (VLAN) interface configuration 有权
标题翻译：动态虚拟局域网（VLAN）接口配置
公开(公告)号：US07983258B1
公开(公告)日：2011-07-19
申请号：US12494949
申请日：2009-06-30
申请人： Karen Ruben , Mathias Kokot , Jerome P. Moisand , Brian M. Sullivan
发明人： Karen Ruben , Mathias Kokot , Jerome P. Moisand , Brian M. Sullivan
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/2859 , H04L12/4654 , H04L12/4658
摘要： Techniques are described for dynamically building an Ethernet virtual local area network (VLAN) interface in a network device. The techniques allow dynamic building of a second VLAN interface over a first VLAN interface statically built over an Ethernet port configured to support dynamic VLANs in a network device. A network device may receive a plurality of Ethernet packets from subscriber devices and dynamically build a second VLAN interface over the first VLAN interface for each of the subscribers. Once the second VLAN interface is built, the network device dynamically builds interface columns over the second VLAN interface for each protocol associated with the Ethernet packets. The network device may then authenticate a user associated with the plurality of Ethernet packets. Once the user has logged out of the network device, the network device may tear down the interface columns while persistently maintaining the corresponding second VLAN interface.
摘要翻译：描述了在网络设备中动态构建以太网虚拟局域网（VLAN）接口的技术。这些技术允许通过静态构建在配置为支持网络设备中的动态VLAN的以太网端口上的第一个VLAN接口动态构建第二个VLAN接口。网络设备可以从订户设备接收多个以太网分组，并通过第一VLAN接口为每个用户动态建立第二VLAN接口。一旦构建了第二个VLAN接口，网络设备就会为与以太网数据包相关联的每个协议在第二个VLAN接口上动态构建接口列。网络设备然后可以认证与多个以太网分组相关联的用户。一旦用户已经登出网络设备，网络设备可以在维护对应的第二个VLAN接口的同时拆除接口列。

5. 发明授权

US07983205B1 Outgoing interface mapping for multicast traffic 有权
标题翻译：组播流量的出接口映射
公开(公告)号：US07983205B1
公开(公告)日：2011-07-19
申请号：US11068523
申请日：2005-02-28
申请人： David H. Blease , Eric L. Peterson , William Coutts , Prasad Deshpande , Jerome P. Moisand , Gregory M. Dalle
发明人： David H. Blease , Eric L. Peterson , William Coutts , Prasad Deshpande , Jerome P. Moisand , Gregory M. Dalle
IPC分类号： H04H20/71 , H04J3/26 , H04L12/28
CPC分类号： H04L12/185 , H04L12/1886 , H04L12/2898 , H04L49/201 , H04L49/351
摘要： Multiple subscriber devices are connected to a network device via one or more network switches. The network device transmits multicast traffic to the subscriber devices. In particular, the network device may receive membership requests for a multicast group from the subscriber devices via the network switch on a first interface, i.e., a mapping interface. The network device sends a multicast stream associated with the multicast group to the network switch on a second interface, i.e. an outgoing interface (OIF). Upon receiving a membership request, the network device maps the membership request to an OIF dedicated to the multicast group. In this way, when multiple subscriber devices connected to the same switch request the same multicast stream, each membership request will map to the same OIF. The network device sends one copy of the multicast stream to the network switch on the dedicated OIF.
摘要翻译：多个用户设备经由一个或多个网络交换机连接到网络设备。网络设备向用户设备发送组播流量。具体地，网络设备可以在第一接口即映射接口上经由网络交换机从订户设备接收针对组播组的成员资格请求。网络设备在第二接口即输出接口（OIF）上向网络交换机发送与组播组相关联的组播流。在接收到成员请求后，网络设备将会员请求映射到专用于组播组的OIF。以这种方式，当连接到相同交换机的多个用户设备请求相同的多播流时，每个成员请求将映射到相同的OIF。网络设备将专用OIF上的组播流的一个副本发送到网络交换机。

6. 发明授权

US07492766B2 Dynamic building of VLAN interfaces based on subscriber information strings 有权
标题翻译：基于用户信息字符串动态构建VLAN接口
公开(公告)号：US07492766B2
公开(公告)日：2009-02-17
申请号：US11402145
申请日：2006-04-11
申请人： Linda M. Cabeca , Mathias Kokot , Jerome P. Moisand , Vitali Vinokour , Thomas Lemaire , Karen Ruben
发明人： Linda M. Cabeca , Mathias Kokot , Jerome P. Moisand , Vitali Vinokour , Thomas Lemaire , Karen Ruben
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/4645 , H04L12/4675 , H04L45/52
摘要： Techniques are described that allow a network device, such as a router, to dynamically build VLAN interfaces based on subscriber information strings included within packets. In particular, the network device comprises an interface controller and a forwarding controller, where the forwarding controller receives the packet over an Ethernet port and forwards the received packet to the interface controller. The packet includes both Ethernet tagging information and a subscriber information string. The interface controller comprises an Ethernet module that dynamically builds a primary virtual local area network (VLAN) sub-interface (PVS) based on the Ethernet tagging information. The Ethernet module also dynamically builds a subscriber VLAN sub-interface (SVS) based on the subscriber information string. The SVS allows the network device to distinguish between subscribers residing on the same VLAN, and, therefore, to provide subscriber specific services.
摘要翻译：描述了允许网络设备（例如路由器）基于分组中包括的订户信息字符串动态构建VLAN接口的技术。特别地，网络设备包括接口控制器和转发控制器，转发控制器通过以太网端口接收分组，并将接收的分组转发给接口控制器。分组包括以太网标记信息和用户信息字符串。接口控制器包括基于以太网标签信息动态构建主虚拟局域网（VLAN）子接口（PVS）的以太网模块。以太网模块还根据用户信息字符串动态构建用户VLAN子接口（SVS）。 SVS允许网络设备区分驻留在同一个VLAN上的用户，从而提供用户特定的服务。

7. 发明授权

US08392593B1 Multiple control channels for multicast replication in a network 有权
标题翻译：多个控制信道用于网络中的组播复制
公开(公告)号：US08392593B1
公开(公告)日：2013-03-05
申请号：US11627690
申请日：2007-01-26
申请人： Sanjay Wadhwa , Jerome P. Moisand , Mathias Kokot
发明人： Sanjay Wadhwa , Jerome P. Moisand , Mathias Kokot
IPC分类号： G06F15/16 , G06F21/00 , H04L12/28 , H04L12/56
CPC分类号： H04L29/06 , G06F21/10 , H04L12/185 , H04L12/1854 , H04L29/06027 , H04L47/15
摘要： Network devices, such as a router and a downstream multicast distribution device, may use multiple control channels when setting up a multicast stream for a multicast request. For example, first messages may be transmitted using a first protocol to an upstream device over a first channel, the first messages indicating when a first multicast media stream is being requested by at least one of a number of client devices. Second messages may be transmitted using a second protocol over a second channel, the second messages being transmitted on a per-client basis and each identifying a one of the client devices as requesting the first multicast media stream. By using two control channels to convey the multicast channel requests, the router may obtain visibility into the action of the subscriber and can consequently perform per-subscriber operations such as access-control, bandwidth based admission control, statistics, and QoS adjustment for multicast IPTV streams received by the subscriber.
摘要翻译：诸如路由器和下游组播分发设备之类的网络设备在为组播请求建立组播流时可以使用多个控制信道。例如，可以使用第一协议将第一消息通过第一信道发送到上游设备，第一消息指示何时由多个客户端设备中的至少一个请求第一多播媒体流。可以使用第二协议在第二信道上发送第二消息，第二消息是在每个客户端的基础上发送的，并且每个将客户端设备中的一个识别为请求第一多播媒体流。通过使用两个控制信道来传送组播信道请求，路由器可以获得对用户动作的可见性，并且因此可以执行诸如接入控制，基于带宽的接纳控制，统计和用于组播IPTV的QoS调整之类的每用户操作用户接收的流。

8. 发明授权

US08121126B1 Layer two (L2) network access node having data plane MPLS 有权
标题翻译：具有数据平面MPLS的第二层（L2）网络接入节点
公开(公告)号：US08121126B1
公开(公告)日：2012-02-21
申请号：US11621386
申请日：2007-01-09
申请人： Jerome P. Moisand , Rahul Aggarwal , Sanjay Wadhwa , Benjamin Hickey
发明人： Jerome P. Moisand , Rahul Aggarwal , Sanjay Wadhwa , Benjamin Hickey
IPC分类号： H04L12/56
CPC分类号： H04L45/50 , H04L45/66 , H04L61/2061 , H04L61/6022
摘要： The invention is directed towards techniques for forwarding subscriber frames through a Multi-Protocol Label Switching (MPLS) aggregation network using MPLS labels. Layer two (L2) network devices, such as access nodes, of a service provider (SP) network implement MPLS functionality in the data plane, but do not implement an MPLS signaling protocol in the control plane. The L2 network devices include an interface for configuring a static pool of labels applied in the data plane of the L2 network device to output MPLS communications to the MPLS network. The access nodes may be configured by an administrator to maintain static pools of subscriber labels and MPLS labels. The access nodes autonomously allocate the subscriber labels to subscriber devices that request broadband services from a Broadband Services Router (BSR), and distribute the subscriber labels and MPLS labels as upstream assigned labels.
摘要翻译：本发明涉及通过使用MPLS标签的多协议标签交换（MPLS）聚合网络来转发用户帧的技术。服务提供商（SP）网络的第二层（L2）网络设备（诸如接入节点）在数据平面中实现MPLS功能，但是在控制平面中不实现MPLS信令协议。 L2网络设备包括用于配置应用在L2网络设备的数据平面中的标签的静态池的接口，以向MPLS网络输出MPLS通信。接入节点可能由管理员配置，以维护订户标签和MPLS标签的静态池。接入节点自主地将用户标签分配给从宽带业务路由器（BSR）请求宽带业务的用户设备，并将用户标签和MPLS标签分配为上行分配标签。

9. 发明授权

US08085791B1 Using layer two control protocol (L2CP) for data plane MPLS within an L2 network access node 失效
标题翻译：在L2网络接入节点内使用第二层控制协议（L2CP）作为数据平面MPLS
公开(公告)号：US08085791B1
公开(公告)日：2011-12-27
申请号：US11621409
申请日：2007-01-09
申请人： Rahul Aggarwal , Benjamin Hickey , Sanjay Wadhwa , Jerome P. Moisand
发明人： Rahul Aggarwal , Benjamin Hickey , Sanjay Wadhwa , Jerome P. Moisand
IPC分类号： H04L12/56
CPC分类号： H04L45/507 , H04L45/68
摘要： The invention is directed towards techniques for forwarding subscriber frames through a Multi-Protocol Label Switching (MPLS) aggregation network using MPLS labels. Layer two (L2) network devices, such as access nodes, of a service provider (SP) network implement MPLS functionality in the data plane, but do not implement an MPLS signaling protocol in the control plane. The L2 network devices include a pool of labels applied in the data plane of the L2 network device to output MPLS communications to the MPLS network, and a protocol that allows a layer three (L3) device to control provision of L2 functionality by the L2 device. The pool of labels is dynamically configured by the L3 device via the protocol. The access nodes distribute the subscriber labels and MPLS labels as upstream assigned labels.
摘要翻译：本发明涉及通过使用MPLS标签的多协议标签交换（MPLS）聚合网络来转发用户帧的技术。服务提供商（SP）网络的第二层（L2）网络设备（诸如接入节点）在数据平面中实现MPLS功能，但是在控制平面中不实现MPLS信令协议。 L2网络设备包括应用在L2网络设备的数据平面中的标签池，以向MPLS网络输出MPLS通信，以及允许第三层（L3）设备控制L2设备提供L2功能的协议。标签池由L3设备通过协议动态配置。接入节点将用户标签和MPLS标签分配为上行分配的标签。

10. 发明授权

US08432871B1 Offloading mobile traffic from a mobile core network 有权
公开(公告)号：US08432871B1
公开(公告)日：2013-04-30
申请号：US12748245
申请日：2010-03-26
申请人： Jagadishchandra Sarnaik , Sreenivasa Tellakula , Ravi Nuguru , Ujjvala Nagineni , Jerome P. Moisand , Sanjay Wadhwa
发明人： Jagadishchandra Sarnaik , Sreenivasa Tellakula , Ravi Nuguru , Ujjvala Nagineni , Jerome P. Moisand , Sanjay Wadhwa
IPC分类号： H04W36/22
CPC分类号： H04W28/0289 , H04W8/082 , H04W28/08 , H04W76/12
摘要： In general, the invention is directed to techniques for offloading mobile data traffic from a mobile core network to a broadband network. For example, as described herein, a breakout gateway forwards a service request from a mobile device and addressed to a service node. The service node designates an access point name (APN) for offload such that data traffic associated with service requests specifying the designated APN is to be offloaded to an offload network. The service node receives the service requests from the breakout gateway and, if the service request specifies the designated APN, the service node sends a request to the breakout gateway. The breakout gateway receives the request and assigns a routable PDP address to the mobile device. An offload module on the breakout gateway redirects mobile data traffic to the offload network when the source PDP address of the traffic is the previously assigned PDP address.

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