公开(公告)号：US07925744B1

公开(公告)日：2011-04-12

申请号：US12188769

申请日：2008-08-08

申请人： Sanjiv Doshi ,  Rajagopalan Subbiah ,  Apurva Mehta ,  Kumar Mehta

发明人： Sanjiv Doshi ,  Rajagopalan Subbiah ,  Apurva Mehta ,  Kumar Mehta

IPC分类号： G06F15/173 ,  H04L12/28 ,  G06F11/00

CPC分类号： H04L49/3009

摘要： A derived state value is calculated based on a plurality of component state values. As any of the plurality of component state values changes, the derived state value is recalculated. When sending information about a MAC address or other data between two components, the derived state value is included in the information sent. An object receiving a MAC address or other data from another object checks the validity of the received derived state value to determine whether to accept the new data and flush old data, to accept the new data, or to ignore the new data.

摘要翻译： 基于多个分量状态值计算导出状态值。 随着多个分量状态值中的任何一个变化，重新计算导出的状态值。 当在两个组件之间发送有关MAC地址或其他数据的信息时，派生状态值包含在发送的信息中。 从另一个对象接收MAC地址或其他数据的对象检查接收的导出状态值的有效性，以确定是接受新数据还是刷新旧数据，接受新数据或忽略新数据。

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。

公开(公告)号：US20100309912A1

公开(公告)日：2010-12-09

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： H04L12/56

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的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。

公开(公告)号：US20100226381A1

公开(公告)日：2010-09-09

申请号：US12397811

申请日：2009-03-04

申请人： Apurva Mehta ,  Ramasamy Ramanathan ,  Kumar Mehta ,  Sunesh Rustagi ,  Sanjiv Doshi ,  Shiva Shenoy

发明人： Apurva Mehta ,  Ramasamy Ramanathan ,  Kumar Mehta ,  Sunesh Rustagi ,  Sanjiv Doshi ,  Shiva Shenoy

IPC分类号： H04L12/56

CPC分类号： H04L12/465 ,  H04L45/00 ,  H04L45/66 ,  H04L45/72

摘要： Methods, apparatus, and products are disclosed for routing frames in a TRILL network using service VLAN identifiers by: receiving a frame from an ingress bridge node for transmission through the TRILL network to a destination node that connects to the TRILL network through an egress node, the received frame including a customer VLAN identifier, a service VLAN identifier uniquely assigned to the ingress bridge node, and a destination node address for the destination node, the received frame not having mac-in-mac encapsulation; adding, in dependence upon the service VLAN identifier and the destination node address, a TRILL header conforming to the TRILL protocol, the TRILL header including an ingress bridge nickname and an egress bridge nickname; and routing, to the egress bridge node through which the destination node connects to the network, the frame in dependence upon the ingress bridge nickname and the egress bridge nickname.

摘要翻译： 公开了用于使用服务VLAN标识符在TRILL网络中路由帧的方法，装置和产品：从入口网桥节点接收帧，以通过TRILL网络传输到通过出口节点连接到TRILL网络的目的地节点， 所接收的帧包括客户VLAN标识符，唯一地分配给入口网桥节点的服务VLAN标识符和目的地节点的目的地节点地址，所接收的帧不具有mac-in-mac封装; 根据服务VLAN标识符和目的地节点地址，添加符合TRILL协议的TRILL报头，TRILL报头包括入口网桥昵称和出口网桥昵称; 并且根据入口网桥昵称和出口网桥昵称路由到目的地节点通过其连接到网络的出口网桥节点。

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：US07787480B1

公开(公告)日：2010-08-31

申请号：US12397811

申请日：2009-03-04

申请人： Apurva Mehta ,  Ramasamy Ramanathan ,  Kumar Mehta ,  Sunesh Rustagi ,  Sanjiv Doshi ,  Shiva Shenoy

发明人： Apurva Mehta ,  Ramasamy Ramanathan ,  Kumar Mehta ,  Sunesh Rustagi ,  Sanjiv Doshi ,  Shiva Shenoy

IPC分类号： H04L12/56

CPC分类号： H04L12/465 ,  H04L45/00 ,  H04L45/66 ,  H04L45/72

摘要： Methods, apparatus, and products are disclosed for routing frames in a TRILL network using service VLAN identifiers by: receiving a frame from an ingress bridge node for transmission through the TRILL network to a destination node that connects to the TRILL network through an egress node, the received frame including a customer VLAN identifier, a service VLAN identifier uniquely assigned to the ingress bridge node, and a destination node address for the destination node, the received frame not having mac-in-mac encapsulation; adding, in dependence upon the service VLAN identifier and the destination node address, a TRILL header conforming to the TRILL protocol, the TRILL header including an ingress bridge nickname and an egress bridge nickname; and routing, to the egress bridge node through which the destination node connects to the network, the frame in dependence upon the ingress bridge nickname and the egress bridge nickname.

摘要翻译： 公开了用于使用服务VLAN标识符在TRILL网络中路由帧的方法，装置和产品：从入口网桥节点接收帧，以通过TRILL网络传输到通过出口节点连接到TRILL网络的目的地节点， 所接收的帧包括客户VLAN标识符，唯一地分配给入口网桥节点的服务VLAN标识符和目的地节点的目的地节点地址，所接收的帧不具有mac-in-mac封装; 根据服务VLAN标识符和目的地节点地址，添加符合TRILL协议的TRILL报头，TRILL报头包括入口网桥昵称和出口网桥昵称; 并且根据入口网桥昵称和出口网桥昵称路由到目的地节点通过其连接到网络的出口网桥节点。

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：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：US08509248B2

公开(公告)日：2013-08-13

申请号：US12344644

申请日：2008-12-29

申请人： Apurva Mehta ,  Ramasamy Ramanathan ,  Kumar Mehta ,  Ramanarayanan Ramakrishnan

发明人： Apurva Mehta ,  Ramasamy Ramanathan ,  Kumar Mehta ,  Ramanarayanan Ramakrishnan

IPC分类号： H04L12/28 ,  H04J3/16

CPC分类号： H04L45/12 ,  H04L12/462 ,  H04L45/04 ,  H04L45/66

摘要： Methods, apparatus, and products for routing frames in a network using bridge identifiers, wherein the network includes a plurality of bridge nodes. At least one of the bridge nodes operates as an ingress bridge node through which frames are received into the network. At least one of the bridge nodes operates as an egress bridge node through which frames are transmitted out of the network. One of the bridge nodes receives, from the ingress bridge node, a frame for transmission to a destination node. The destination node connects to the network through the egress bridge node. The frame includes an ingress bridge identifier and an egress bridge identifier. The bridge that received the frame then routes the frame to the egress bridge node through which the destination node connects to the network in dependence upon the ingress bridge identifier and the egress bridge identifier included in the frame.

摘要翻译： 用于使用桥标识符在网络中路由帧的方法，装置和产品，其中所述网络包括多个网桥节点。 桥接节点中的至少一个作为进入网络的入口网桥节点运行。 至少一个桥接节点作为出口网桥节点运行，帧从网络中传出。 桥节点之一从入口网桥节点接收用于传输到目的地节点的帧。 目的节点通过出口网桥节点连接到网络。 帧包括入口网桥标识符和出口网桥标识符。 接收到帧的桥接器根据包含在帧中的入口网桥标识符和出口网桥标识符，将帧路由到目的节点通过其连接到网络的出口网桥节点。