公开(公告)号：US08520615B2

公开(公告)日：2013-08-27

申请号：US12853707

申请日：2010-08-10

申请人： Apurva Mehta ,  Kumar Mehta ,  Krishna Sankaran ,  Sanjiv Doshi ,  Srinivasa Chaganti ,  Bin Hong

发明人： Apurva Mehta ,  Kumar Mehta ,  Krishna Sankaran ,  Sanjiv Doshi ,  Srinivasa Chaganti ,  Bin Hong

IPC分类号： H04Q7/00

CPC分类号： H04W8/082 ,  H04L45/22 ,  H04W40/34 ,  H04W80/04 ,  H04W88/16

摘要： In general, the invention is directed to techniques for breaking out mobile data traffic from a mobile service provider network to a packet data network. For example, as described herein, a breakout gateway device (BGW) receives a first service request and data traffic for a data session associated with the requested service from a mobile device in a radio access network, wherein the first service request is addressed to a serving node of a mobile core network of the mobile service provider network, and wherein the data traffic is destined for the PDN. A control packet analysis module forwards the first service request from the breakout gateway device to the serving node. A breakout module of the BGW bypasses the serving node by sending the data traffic from the breakout gateway device to the PDN on a data path from the radio access network to the PDN.

摘要翻译： 通常，本发明涉及用于将移动数据业务从移动业务提供商网络分解成分组数据网络的技术。 例如，如本文所述，分组网关设备（BGW）从无线电接入网络中的移动设备接收与所请求的服务相关联的数据会话的第一服务请求和数据业务，其中第一服务请求被寻址到 移动服务提供商网络的移动核心网络的服务节点，并且其中数据业务指向PDN。 控制分组分析模块将第一服务请求从分组网关设备转发到服务节点。 BGW的突围模块通过在从无线接入网络到PDN的数据路径上将数据业务从分组网关设备发送到PDN来绕过服务节点。

公开(公告)号：US20110235595A1

公开(公告)日：2011-09-29

申请号：US12853707

申请日：2010-08-10

申请人： Apurva Mehta ,  Kumar Mehta ,  Krishna Sankaran ,  Sanjiv Doshi ,  Srinivasa Chaganti ,  Bin Hong

发明人： Apurva Mehta ,  Kumar Mehta ,  Krishna Sankaran ,  Sanjiv Doshi ,  Srinivasa Chaganti ,  Bin Hong

IPC分类号： H04W4/00

CPC分类号： H04W8/082 ,  H04L45/22 ,  H04W40/34 ,  H04W80/04 ,  H04W88/16

摘要： In general, the invention is directed to techniques for breaking out mobile data traffic from a mobile service provider network to a packet data network. For example, as described herein, a breakout gateway device (BGW) receives a first service request and data traffic for a data session associated with the requested service from a mobile device in a radio access network, wherein the first service request is addressed to a serving node of a mobile core network of the mobile service provider network, and wherein the data traffic is destined for the PDN. A control packet analysis module forwards the first service request from the breakout gateway device to the serving node. A breakout module of the BGW bypasses the serving node by sending the data traffic from the breakout gateway device to the PDN on a data path from the radio access network to the PDN.

摘要翻译： 通常，本发明涉及用于将移动数据业务从移动业务提供商网络分解成分组数据网络的技术。 例如，如本文所述，分组网关设备（BGW）从无线电接入网络中的移动设备接收与所请求的服务相关联的数据会话的第一服务请求和数据业务，其中第一服务请求被寻址到 移动服务提供商网络的移动核心网络的服务节点，并且其中数据业务指向PDN。 控制分组分析模块将第一服务请求从分组网关设备转发到服务节点。 BGW的突围模块通过在从无线接入网络到PDN的数据路径上将数据业务从分组网关设备发送到PDN来绕过服务节点。

公开(公告)号：US08650279B2

公开(公告)日：2014-02-11

申请号：US13172556

申请日：2011-06-29

申请人： Apurva Mehta ,  Srinivasa Chaganti ,  Gopi Krishna ,  Krishna Sankaran ,  Sanjiv Doshi

发明人： Apurva Mehta ,  Srinivasa Chaganti ,  Gopi Krishna ,  Krishna Sankaran ,  Sanjiv Doshi

IPC分类号： G06F15/173

CPC分类号： H04W8/082

摘要： In general, techniques are described for decentralizing handling of subscriber sessions within a gateway device of a mobile network. A mobile network gateway comprises a data plane having a plurality of forwarding components to receive session requests from a mobile service provider network in which the mobile network gateway resides. A control plane comprises a plurality of distributed subscriber management service units coupled by a switch fabric to the data plane. Each of the subscriber management service units serve as anchors for communication sessions for mobile devices that are accessing one or more packet data network by the mobile service provider network. A request delegation module within each of the forwarding components directs the session requests to the subscriber management service units unit to provide management services for the sessions requested by the mobile device.

摘要翻译： 一般来说，描述了用于在移动网络的网关设备内分散处理用户会话的技术。 移动网络网关包括具有多个转发组件的数据平面，用于从移动网络网关驻留的移动服务提供商网络接收会话请求。 控制平面包括由交换结构耦合到数据平面的多个分布式用户管理服务单元。 每个用户管理服务单元用作移动服务提供商网络正在访问一个或多个分组数据网络的移动设备的通信会话的锚点。 每个转发组件内的请求委托模块将会话请求引导到用户管理服务单元单元，以为移动设备请求的会话提供管理服务。

公开(公告)号：US20130007237A1

公开(公告)日：2013-01-03

申请号：US13172556

申请日：2011-06-29

申请人： Apurva Mehta ,  Srinivasa Chaganti ,  Gopi Krishna ,  Krishna Sankaran ,  Sanjiv Doshi

发明人： Apurva Mehta ,  Srinivasa Chaganti ,  Gopi Krishna ,  Krishna Sankaran ,  Sanjiv Doshi

IPC分类号： G06F15/173

CPC分类号： H04W8/082

摘要： In general, techniques are described for decentralizing handling of subscriber sessions within a gateway device of a mobile network. A mobile network gateway comprises a data plane having a plurality of forwarding components to receive session requests from a mobile service provider network in which the mobile network gateway resides. A control plane comprises a plurality of distributed subscriber management service units coupled by a switch fabric to the data plane. Each of the subscriber management service units serve as anchors for communication sessions for mobile devices that are accessing one or more packet data network by the mobile service provider network. A request delegation module within each of the forwarding components directs the session requests to the subscriber management service units unit to provide management services for the sessions requested by the mobile device.

摘要翻译： 一般来说，描述了用于在移动网络的网关设备内分散处理用户会话的技术。 移动网络网关包括具有多个转发组件的数据平面，用于从移动网络网关驻留的移动服务提供商网络接收会话请求。 控制平面包括由交换结构耦合到数据平面的多个分布式用户管理服务单元。 每个用户管理服务单元用作移动服务提供商网络正在访问一个或多个分组数据网络的移动设备的通信会话的锚点。 每个转发组件内的请求委托模块将会话请求引导到用户管理服务单元单元，以为移动设备请求的会话提供管理服务。

公开(公告)号：US08295291B1

公开(公告)日：2012-10-23

申请号：US12643849

申请日：2009-12-21

申请人： Ramasamy Ramanathan ,  Apurva Mehta ,  Rama Ramakrishnan ,  Gopi Krishna ,  Srinivasa Chaganti ,  Krishna Sankaran ,  Jagadish Grandhi

发明人： Ramasamy Ramanathan ,  Apurva Mehta ,  Rama Ramakrishnan ,  Gopi Krishna ,  Srinivasa Chaganti ,  Krishna Sankaran ,  Jagadish Grandhi

IPC分类号： H04L12/28

CPC分类号： H04L45/32 ,  H04L45/48 ,  H04L45/66

摘要： A device includes one or more network interfaces to receive layer two (L2) communications from an L2 network having a plurality of L2 devices; and a control unit to forward the L2 communications in accordance with forwarding information defining a plurality of flooding next hops. Each of the flooding next hops stored by the control unit specifies a set of the L2 devices within the L2 network to which to forward L2 communications in accordance with a plurality of trees, where each of the trees has a different one of the plurality of L2 devices as a root node. The control unit of the device computes a corresponding one of flooding next hops for each of the trees using only a subset of the trees without computing all of the trees having all of the different L2 network devices as root nodes.

摘要翻译： 一种设备包括一个或多个网络接口，用于从具有多个L2设备的L2网络接收第二层（L2）通信; 以及控制单元，用于根据定义多个洪泛下一跳的转发信息转发L2通信。 由控制单元存储的每个洪泛下一跳都指定L2网络内的L2设备的集合，根据多个树进行L2通信，其中每个树具有多个L2中的不同的一个 设备作为根节点。 设备的控制单元仅使用树的子集计算每个树的洪泛下一跳的相应的一个，而不计算具有所有不同的L2网络设备的所有树作为根节点。

公开(公告)号：US08619788B1

公开(公告)日：2013-12-31

申请号：US12901985

申请日：2010-10-11

申请人： Krishna Sankaran ,  Sanjiv Doshi ,  Jagadish Grandhi ,  Apurva Mehta ,  Prakash Kamath ,  Huaxiang Sun ,  Shivaprakash Shenoy

发明人： Krishna Sankaran ,  Sanjiv Doshi ,  Jagadish Grandhi ,  Apurva Mehta ,  Prakash Kamath ,  Huaxiang Sun ,  Shivaprakash Shenoy

IPC分类号： H04L12/28

CPC分类号： H04L12/462 ,  H04L12/4658 ,  H04L45/60 ,  H04L45/66 ,  H04L49/351 ,  H04L67/2866 ,  H04L69/30

摘要： In general, techniques are described for performing scalable layer two (L2) learning in computer networks. A network device that includes interfaces and a control unit may implement these techniques. The control unit stores a L2 learning table having entries that are each associated with a service tag identifying a service virtual local area network. In response to receiving a packet that includes a service tag, the interfaces access the L2 learning table using the service tag to determine whether any of the entries of the L2 learning table are associated with the service tag. When none of the entries are associated with the service tag, the L2 learning module updates the L2 learning table to create a new entry defining an association between the one of the interfaces that received the packet and the service tag.

摘要翻译： 通常，描述了在计算机网络中执行可缩放的第二层（L2）学习的技术。 包括接口和控制单元的网络设备可以实现这些技术。 控制单元存储具有每个与标识服务虚拟局域网的服务标签相关联的条目的L2学习表。 响应于接收到包括服务标签的分组，接口使用服务标签访问L2学习表，以确定L2学习表的任何条目是否与服务标签相关联。 当没有任何条目与服务标签相关联时，L2学习模块更新L2学习表，以创建定义接收到分组的接口之一与服务标签之间的关联的新条目。

公开(公告)号：US20110019678A1

公开(公告)日：2011-01-27

申请号：US12508949

申请日：2009-07-24

申请人： Apurva Mehta ,  Kumar Mehta ,  Ramasamy Ramanathan ,  Krishna Sankaran ,  Ramanarayanan Ramakrishnan ,  Shiva Shenoy ,  Gopi Krishna

发明人： Apurva Mehta ,  Kumar Mehta ,  Ramasamy Ramanathan ,  Krishna Sankaran ,  Ramanarayanan Ramakrishnan ,  Shiva Shenoy ,  Gopi Krishna

IPC分类号： H04L12/56

CPC分类号： H04L45/24 ,  H04L12/4625 ,  H04L45/04 ,  H04L45/245 ,  H04L45/66 ,  H04L49/351 ,  Y02D50/30

摘要： Methods, apparatus, and products for routing frames in a shortest path computer network for a multi-homed legacy bridge, wherein the network includes a plurality of bridges. At least two of the plurality of bridges operate as edge bridges through which the frames ingress and egress the network. A first edge bridge identifies a legacy bridge nickname for a legacy bridge connected to the network through the first edge bridge and a second edge bridge using active-active link aggregation. The first bridge receives a frame from the legacy bridge and determines, in dependence upon the frame's destination node address, an egress bridge nickname for a third bridge through which a destination node connects to the network. The first bridge then adds the legacy bridge nickname and the egress bridge nickname to the frame and routes the frame to the third bridge in dependence upon the egress bridge nickname.

摘要翻译： 用于在用于多宿主遗留桥的最短路径计算机网络中路由帧的方法，装置和产品，其中所述网络包括多个桥。 所述多个网桥中的至少两个桥作为边缘网桥，所述帧通过所述边缘网桥进入和离开所述网络。 第一个边缘网桥为通过第一个边缘网桥连接到网络的传统网桥和使用主动 - 主动链路聚合的第二个边缘网桥标识传统网桥昵称。 第一桥接器从传统桥接收帧，并根据帧的目的地节点地址确定目的节点通过其连接到网络的第三桥的出口网桥昵称。 然后，第一个桥接器将遗留桥昵称和出口桥昵称添加到帧中，并根据出口网桥昵称将帧路由到第三桥。

公开(公告)号：US20130007286A1

公开(公告)日：2013-01-03

申请号：US13172579

申请日：2011-06-29

申请人： Apurva Mehta ,  Bart Brinckman ,  Bin W. Hong ,  Huiyang Yang ,  Krishna Sankaran ,  Kumar Mehta

发明人： Apurva Mehta ,  Bart Brinckman ,  Bin W. Hong ,  Huiyang Yang ,  Krishna Sankaran ,  Kumar Mehta

IPC分类号： G06F15/16

CPC分类号： H04W76/10

摘要： In general, techniques are described for dynamically redirecting session requests received with a mobile network gateway to another gateway of the mobile network. Heterogeneous static and dynamic capabilities among gateways of the mobile network lead some gateways unable to service a particular session requested by a wireless device attached to the mobile network. A set of policies configured within the gateways by a mobile network operator and applied by the gateway enable the gateway to identify and offload session requests to another gateway of the mobile network that has the present capability to service the session. The policies may define conditions and actions to provide flexible routing of the user session to an appropriate gateway.

摘要翻译： 通常，描述了用于将用移动网络网关接收的会话请求动态重定向到移动网络的另一个网关的技术。 移动网络的网关之间的异构静态和动态能力导致一些网关不能为连接到移动网络的无线设备请求的特定会话服务。 由移动网络运营商配置并由网关应用的一组策略使得网关能够识别和卸载会话请求到移动网络的另一个网关，该移动网络具有服务该会话的当前能力。 策略可以定义条件和动作，以将用户会话的灵活路由提供给适当的网关。

公开(公告)号：US08125928B2

公开(公告)日：2012-02-28

申请号：US12508949

申请日：2009-07-24

申请人： Apurva Mehta ,  Kumar Mehta ,  Ramasamy Ramanathan ,  Krishna Sankaran ,  Ramanarayanan Ramakrishnan ,  Shiva Shenoy ,  Gopi Krishna

发明人： Apurva Mehta ,  Kumar Mehta ,  Ramasamy Ramanathan ,  Krishna Sankaran ,  Ramanarayanan Ramakrishnan ,  Shiva Shenoy ,  Gopi Krishna

IPC分类号： H04L12/28

CPC分类号： H04L45/24 ,  H04L12/4625 ,  H04L45/04 ,  H04L45/245 ,  H04L45/66 ,  H04L49/351 ,  Y02D50/30

摘要： Methods, apparatus, and products for routing frames in a shortest path computer network for a multi-homed legacy bridge, wherein the network includes a plurality of bridges. At least two of the plurality of bridges operate as edge bridges through which the frames ingress and egress the network. A first edge bridge identifies a legacy bridge nickname for a legacy bridge connected to the network through the first edge bridge and a second edge bridge using active-active link aggregation. The first bridge receives a frame from the legacy bridge and determines, in dependence upon the frame's destination node address, an egress bridge nickname for a third bridge through which a destination node connects to the network. The first bridge then adds the legacy bridge nickname and the egress bridge nickname to the frame and routes the frame to the third bridge in dependence upon the egress bridge nickname.

摘要翻译： 用于在用于多宿主遗留桥的最短路径计算机网络中路由帧的方法，装置和产品，其中所述网络包括多个桥。 所述多个网桥中的至少两个桥作为边缘网桥，所述帧通过所述边缘网桥进入和离开所述网络。 第一个边缘网桥为通过第一个边缘网桥连接到网络的传统网桥和使用主动 - 主动链路聚合的第二个边缘网桥标识传统网桥昵称。 第一桥接器从传统桥接收帧，并根据帧的目的地节点地址确定目的节点通过其连接到网络的第三桥的出口网桥昵称。 然后，第一个桥接器将遗留桥昵称和出口桥昵称添加到帧中，并根据出口网桥昵称将帧路由到第三桥。

公开(公告)号：US08199753B2

公开(公告)日：2012-06-12

申请号：US12478857

申请日：2009-06-05

申请人： Apurva Mehta ,  Kumar Mehta ,  Krishna Sankaran ,  Rajagopalan Subbiah ,  Ramanarayanan Ramakrishnan ,  Bin William Hong ,  Ananda Sathyanarayana

发明人： Apurva Mehta ,  Kumar Mehta ,  Krishna Sankaran ,  Rajagopalan Subbiah ,  Ramanarayanan Ramakrishnan ,  Bin William Hong ,  Ananda Sathyanarayana

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L45/00 ,  H04L12/4625 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/48 ,  H04L45/66

摘要： Methods, apparatus, and products are disclosed for forwarding frames in a computer network using shortest path bridging (‘SPB’). The network includes multiple bridges, and each edge bridge is assigned a unique service virtual local area network (‘VLAN’) identifier. One of the bridges receives a frame for transmission to a destination node. The received frame includes a service VLAN identifier for the ingress bridge through which the frame entered the network and a customer VLAN identifier. The one bridge identifies an SPB forwarding tree in dependence upon the service VLAN identifier. The SPB forwarding tree specifies a shortest route in the network from the ingress bridge through the one bridge to the other bridges in the network. The one bridge then forwards the received frame to the egress bridge without MAC-in-MAC encapsulation in dependence upon the SPB forwarding tree and the customer VLAN identifier.

摘要翻译： 公开了使用最短路径桥接（“SPB”）在计算机网络中转发帧的方法，装置和产品。 该网络包括多个网桥，每个边缘网桥被分配一个唯一的服务虚拟局域网（“VLAN”）标识符。 其中一个桥接收到用于传输到目标节点的帧。 接收到的帧包括帧进入网络的入口网桥的服务VLAN标识符和客户VLAN标识符。 一个桥接器根据服务VLAN标识符标识SPB转发树。 SPB转发树指定网络中从入口网桥通过一个网桥到网络中其他网桥的最短路由。 然后，一个桥将接收到的帧转发到出口网桥，而不依赖于SPB转发树和客户VLAN标识符的MAC-in-MAC封装。