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1. 发明授权

US08949413B2 Filter selection and resuse 有权
标题翻译：过滤器选择和重新使用
公开(公告)号：US08949413B2
公开(公告)日：2015-02-03
申请号：US13174216
申请日：2011-06-30
申请人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Krishna Sankaran , Murtuza Attarwala
发明人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Krishna Sankaran , Murtuza Attarwala
IPC分类号： G06F15/173 , H04L29/06
CPC分类号： H04L63/0263 , H04L63/102
摘要： In general, techniques are described for selectively applying and reusing filters stored in a router. In one example, a method includes receiving a network access request from a first user. The method also includes selecting a candidate rule group associated with the packet flow, wherein the candidate rule group comprises one or more currently deployed rules of an existing rule group on the computing device that are currently installed within a forwarding plane and are being applied by the forwarding plane to network traffic associated with a second user. The method also includes installing a new rule group comprising the one or more currently deployed rules of the existing rule group and one or more new rules associated with the first user and not currently installed within a forwarding plane. The method also includes applying each rule of the new rule group to network traffic associated with the first user.
摘要翻译：通常，描述了用于选择性地应用和重用存储在路由器中的过滤器的技术。在一个示例中，一种方法包括从第一用户接收网络访问请求。所述方法还包括选择与所述分组流相关联的候选规则组，其中所述候选规则组包括所述计算设备上当前安装在转发平面内并由所述计算设备应用的一个或多个当前部署的规则组转发平面到与第二用户相关联的网络流量。该方法还包括安装新规则组，其包括现有规则组的一个或多个当前部署的规则以及与第一用户相关联并且当前未安装在转发平面内的一个或多个新规则。该方法还包括将新规则组的每个规则应用于与第一用户相关联的网络流量。

2. 发明申请

US20130007257A1 FILTER SELECTION AND RESUSE 有权
标题翻译：过滤器选择和排除
公开(公告)号：US20130007257A1
公开(公告)日：2013-01-03
申请号：US13174216
申请日：2011-06-30
申请人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Krishna Sankaran , Murtuza Attarwala
发明人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Krishna Sankaran , Murtuza Attarwala
IPC分类号： G06F15/173
CPC分类号： H04L63/0263 , H04L63/102
摘要： In general, techniques are described for selectively applying and reusing filters stored in a router. In one example, a method includes receiving a network access request from a first user. The method also includes selecting a candidate rule group associated with the packet flow, wherein the candidate rule group comprises one or more currently deployed rules of an existing rule group on the computing device that are currently installed within a forwarding plane and are being applied by the forwarding plane to network traffic associated with a second user. The method also includes installing a new rule group comprising the one or more currently deployed rules of the existing rule group and one or more new rules associated with the first user and not currently installed within a forwarding plane. The method also includes applying each rule of the new rule group to network traffic associated with the first user.
摘要翻译：通常，描述了用于选择性地应用和重用存储在路由器中的过滤器的技术。在一个示例中，一种方法包括从第一用户接收网络访问请求。所述方法还包括选择与所述分组流相关联的候选规则组，其中所述候选规则组包括所述计算设备上当前安装在转发平面内并由所述计算设备应用的一个或多个当前部署的规则组转发平面到与第二用户相关联的网络流量。该方法还包括安装新规则组，其包括现有规则组的一个或多个当前部署的规则以及与第一用户相关联并且当前未安装在转发平面内的一个或多个新规则。该方法还包括将新规则组的每个规则应用于与第一用户相关联的网络流量。

3. 发明授权

US08576841B2 Hybrid port range encoding 有权
标题翻译：混合端口范围编码
公开(公告)号：US08576841B2
公开(公告)日：2013-11-05
申请号：US13174437
申请日：2011-06-30
申请人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Murtuza Attarwala
发明人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Murtuza Attarwala
IPC分类号： H04L29/02
CPC分类号： H04L63/0236 , H04L45/60 , H04L45/7457
摘要： In general, techniques are described for encoding port ranges. In one example, a method includes generating an encoded value that represents a specified port range including a first element storing an identifier that identifies a frequently occurring port range stored in an associative data structure of most frequently occurring port ranges, a second element storing an index that represents a dynamically-learned port range specifying at least a part of the specified port range, the dynamically-learned port range represented in a tree-structure of dynamically-learned port ranges and identified by the index, and applying, by a forwarding plane of the computing device, one or more filters associated with the encoded value to a packet that specifies a port included in the specified port range.
摘要翻译：一般来说，描述用于编码端口范围的技术。在一个示例中，一种方法包括生成代表指定端口范围的编码值，该编码值包括存储识别存储在最频繁出现的端口范围的关联数据结构中的频繁出现的端口范围的标识符的第一元素，存储索引的第二元素这表示一个动态学习的端口范围，指定指定端口范围的至少一部分，动态学习的端口范围，以动态学习的端口范围的树结构表示，并由索引标识，并由转发平面计算设备的一个或多个与编码值相关联的过滤器与指定包括在指定端口范围中的端口的分组相关联。

4. 发明申请

US20130003727A1 HYBRID PORT RANGE ENCODING 有权
标题翻译：混合端口范围编码
公开(公告)号：US20130003727A1
公开(公告)日：2013-01-03
申请号：US13174437
申请日：2011-06-30
申请人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Murtuza Attarwala
发明人： Balamurugan Ramaraj , Gopi Krishna , Ananda Sathyanarayana , Apurva Mehta , Murtuza Attarwala
IPC分类号： H04L29/02
CPC分类号： H04L63/0236 , H04L45/60 , H04L45/7457
摘要： In general, techniques are described for encoding port ranges. In one example, a method includes generating an encoded value that represents a specified port range including a first element storing an identifier that identifies a frequently occurring port range stored in an associative data structure of most frequently occurring port ranges, a second element storing an index that represents a dynamically-learned port range specifying at least a part of the specified port range, the dynamically-learned port range represented in a tree-structure of dynamically-learned port ranges and identified by the index, and applying, by a forwarding plane of the computing device, one or more filters associated with the encoded value to a packet that specifies a port included in the specified port range.
摘要翻译：一般来说，描述用于编码端口范围的技术。在一个示例中，一种方法包括生成代表指定端口范围的编码值，该编码值包括存储识别存储在最频繁出现的端口范围的关联数据结构中的频繁出现的端口范围的标识符的第一元素，存储索引的第二元素这表示一个动态学习的端口范围，指定指定端口范围的至少一部分，动态学习的端口范围，以动态学习的端口范围的树结构表示，并由索引标识，并由转发平面计算设备的一个或多个与编码值相关联的过滤器与指定包括在指定端口范围中的端口的分组相关联。

5. 发明申请

US20130003736A1 VARIABLE-BASED FORWARDING PATH CONSTRUCTION FOR PACKET PROCESSING WITHIN A NETWORK DEVICE 有权
公开(公告)号：US20130003736A1
公开(公告)日：2013-01-03
申请号：US13172505
申请日：2011-06-29
申请人： Andrzej Szyszko , Apurva Mehta , Kumar Mehta , Gopi Krishna , Jagadish Grandhi , Murtuza Attarwala
发明人： Andrzej Szyszko , Apurva Mehta , Kumar Mehta , Gopi Krishna , Jagadish Grandhi , Murtuza Attarwala
IPC分类号： H04L12/56
CPC分类号： H04L41/5048 , H04L45/56 , H04L45/745 , H04L47/2441
摘要： In general, this disclosure describes techniques for applying, with a network device, subscriber-specific packet processing using an internal processing path that includes service objects that are commonly applied to multiple packet flows associated with multiple subscribers. In one example, a network device control plane creates subscriber records that include, for respective subscribers, one or more variable values that specify service objects as well as an identifier for a packet processing template. A forwarding plane of the network device receives and maps subscriber packets to an associated subscriber record and then processes the packet by executing the packet processing template specified by the subscriber record. When the forwarding plane reaches a variable while executing the specified packet processing template, the forwarding plane reads the associated variable value from the subscriber record to identify and then apply the subscriber-specific service object specified by the variable.

6. 发明授权

US08948174B2 Variable-based forwarding path construction for packet processing within a network device 有权
标题翻译：基于变量的转发路径构造，用于网络设备内的数据包处理
公开(公告)号：US08948174B2
公开(公告)日：2015-02-03
申请号：US13172505
申请日：2011-06-29
申请人： Andrzej Szyszko , Apurva Mehta , Kumar Mehta , Gopi Krishna , Jagadish Grandhi , Murtuza Attarwala
发明人： Andrzej Szyszko , Apurva Mehta , Kumar Mehta , Gopi Krishna , Jagadish Grandhi , Murtuza Attarwala
IPC分类号： H04L12/28 , G06F15/173 , H04L12/851
CPC分类号： H04L41/5048 , H04L45/56 , H04L45/745 , H04L47/2441
摘要： In general, this disclosure describes techniques for applying, with a network device, subscriber-specific packet processing using an internal processing path that includes service objects that are commonly applied to multiple packet flows associated with multiple subscribers. In one example, a network device control plane creates subscriber records that include, for respective subscribers, one or more variable values that specify service objects as well as an identifier for a packet processing template. A forwarding plane of the network device receives and maps subscriber packets to an associated subscriber record and then processes the packet by executing the packet processing template specified by the subscriber record. When the forwarding plane reaches a variable while executing the specified packet processing template, the forwarding plane reads the associated variable value from the subscriber record to identify and then apply the subscriber-specific service object specified by the variable.
摘要翻译：通常，本公开描述了使用包括通常应用于与多个订户相关联的多个分组流的服务对象的内部处理路径与网络设备一起应用用户特定分组处理的技术。在一个示例中，网络设备控制平面创建订户记录，其为相应的订户包括指定服务对象的一个或多个变量值以及分组处理模板的标识符。网络设备的转发平面将用户分组接收并映射到相关联的用户记录，然后通过执行由用户记录指定的分组处理模板来处理该分组。当转发平面在执行指定的分组处理模板时到达变量时，转发平面从用户记录读取相关联的变量值，以识别并应用由变量指定的用户特定服务对象。

7. 发明授权

US08199753B2 Forwarding frames in a computer network using shortest path bridging 有权
标题翻译：使用最短路径桥接在计算机网络中转发帧
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。

8. 发明申请

US20100309912A1 FORWARDING FRAMES IN A COMPUTER NETWORK USING SHORTEST PATH BRIDGING 有权
标题翻译：使用最短路径桥接在计算机网络中的前向框架
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。

9. 发明申请

US20130007237A1 MOBILE GATEWAY HAVING DECENTRALIZED CONTROL PLANE FOR ANCHORING SUBSCRIBER SESSIONS 有权
标题翻译：具有分散式控制平台的移动网关用于锚定用户登记
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。

10. 发明授权

US08295291B1 Computation of next hops within layer two networks 有权
标题翻译：第二层网络中下一跳的计算
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。

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