公开(公告)号：US08949413B2

公开(公告)日：2015-02-03

申请号：US13174216

申请日：2011-06-30

Applicant: Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Krishna Sankaran ,  Murtuza Attarwala

Inventor： Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Krishna Sankaran ,  Murtuza Attarwala

IPC: G06F15/173 ,  H04L29/06

CPC classification number: H04L63/0263 ,  H04L63/102

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130003727A1

公开(公告)日：2013-01-03

申请号：US13174437

申请日：2011-06-30

Applicant: Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Murtuza Attarwala

Inventor： Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Murtuza Attarwala

IPC: H04L29/02

CPC classification number: H04L63/0236 ,  H04L45/60 ,  H04L45/7457

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110228793A1

公开(公告)日：2011-09-22

申请号：US12726687

申请日：2010-03-18

Applicant: Sandeep BAJAJ ,  Murtuza ATTARWALA ,  Nitin KUMAR ,  David HAHM

Inventor： Sandeep BAJAJ ,  Murtuza ATTARWALA ,  Nitin KUMAR ,  David HAHM

IPC: H04L12/56 ,  G06F15/16 ,  H04L12/54

CPC classification number: H04L49/25 ,  H04L49/1515 ,  H04L63/0227

Abstract: A network device component receives traffic, determines whether the traffic is host bound traffic or non-host bound traffic, and classifies, based on a user-defined classification scheme, the traffic when the traffic is host bound traffic. The network device component also assigns, based on the classification, the classified host bound traffic to a queue associated with network device component for forwarding the classified host bound traffic to a host component of the network device.

Abstract translation: 网络设备组件接收流量，确定流量是主机绑定流量还是非主机绑定流量，并根据用户定义的分类方案对流量进行主机绑定流量分类。 网络设备组件还基于分类将分类的主机绑定业务分配给与网络设备组件相关联的队列，用于将分类的主机绑定业务转发到网络设备的主机组件。

公开(公告)号：US07525981B2

公开(公告)日：2009-04-28

申请号：US10894226

申请日：2004-07-19

Applicant: Murtuza Attarwala ,  Premal Dinesh Desai ,  Neeraj Gulati ,  Mehul Dholakia

Inventor： Murtuza Attarwala ,  Premal Dinesh Desai ,  Neeraj Gulati ,  Mehul Dholakia

IPC: H04L12/28 ,  H04L12/43

CPC classification number: H04L45/02 ,  H04J2203/0053 ,  H04L45/58 ,  H04L49/253

Abstract: An embodiment of the invention provides a method for glare resolution in a network. The method first designates a master node and a slave node. The method prevents the slave node from initially allocating a first line and a first timeslot for a first sub network connection (SNC) (SNC2 or SNCs2. The master node allocates the first line and the first timeslot for the first SNC, and a second line and a second timeslot for a second SNC (SNC1 or SNCs1).

Abstract translation: 本发明的一个实施例提供一种网络中的眩光解析方法。 该方法首先指定主节点和从节点。 该方法防止从节点首先为第一子网连接（SNC）分配第一行和第一时隙（SNC2或SNC2，主节点为第一SNC分配第一行和第一时隙，第二行 和第二个SNC（SNC1或SNC1）的第二个时隙。

公开(公告)号：US08699485B2

公开(公告)日：2014-04-15

申请号：US12770052

申请日：2010-04-29

Applicant: Murtuza Attarwala ,  Nitin Kumar ,  Alok Khambatkone

Inventor： Murtuza Attarwala ,  Nitin Kumar ,  Alok Khambatkone

IPC: H04L12/28

CPC classification number: H04L12/28 ,  H04L45/02 ,  H04L45/16 ,  H04L45/245 ,  H04L45/28

Abstract: Techniques for handling multicast over link aggregated (LAG) interfaces and integrated routing and bridging (IRB) interfaces in a network device are described in which interfaces, at which a data unit is to be transmitted, may be represented hierarchically in which the LAG interfaces and IRB interfaces are represented as pointers. In one implementation, a device may determine routes for data units, where a route for a multicast data unit is represented as a set of interfaces of the device at which the data unit is to be output. Entries in the set of interfaces may include physical interfaces of the device and pointers to LAG interfaces or pointers to the IRB interfaces. The device may generate tokens to represent routes for data units and resolve the pointers to the LAG interfaces or the IRB interfaces to obtain physical interfaces of the router corresponding to a LAG or an IRB.

Abstract translation: 描述了在网络设备中用于处理组播over link聚合（LAG）接口和集成路由和桥接（IRB））接口的技术，其中可以分层地表示数据单元将被发送的接口，其中LAG接口和 IRB接口表示为指针。 在一个实现中，设备可以确定数据单元的路由，其中​​组播数据单元的路由被表示为要输出数据单元的设备的一组接口。 该组接口中的条目可以包括设备的物理接口和指向LAG接口的指针或指向IRB接口的指针。 设备可以生成令牌来表示数据单元的路由，并解析指向LAG接口或IRB接口的指针，以获得与LAG或IRB对应的路由器的物理接口。

公开(公告)号：US20130007257A1

公开(公告)日：2013-01-03

申请号：US13174216

申请日：2011-06-30

Applicant: Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Krishna Sankaran ,  Murtuza Attarwala

Inventor： Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Krishna Sankaran ,  Murtuza Attarwala

IPC: G06F15/173

CPC classification number: H04L63/0263 ,  H04L63/102

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130003736A1

公开(公告)日：2013-01-03

申请号：US13172505

申请日：2011-06-29

Applicant: Andrzej Szyszko ,  Apurva Mehta ,  Kumar Mehta ,  Gopi Krishna ,  Jagadish Grandhi ,  Murtuza Attarwala

Inventor： Andrzej Szyszko ,  Apurva Mehta ,  Kumar Mehta ,  Gopi Krishna ,  Jagadish Grandhi ,  Murtuza Attarwala

IPC: H04L12/56

CPC classification number: H04L41/5048 ,  H04L45/56 ,  H04L45/745 ,  H04L47/2441

Abstract: 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.

公开(公告)号：US07283462B1

公开(公告)日：2007-10-16

申请号：US10608572

申请日：2003-06-30

Applicant: Murtuza Attarwala ,  Premal Desai

Inventor： Murtuza Attarwala ,  Premal Desai

IPC: H04J1/16 ,  H04J3/14

CPC classification number: H04J3/14

Abstract: Consistent with a feature of the present invention, protection and working routes are determined by assigning administrative weight values to each route in a network. The administrative weight value of a route can correspond to the physical distance associated with that route. Once the administrative weight values are assigned, that route having the lowest administrative weight value is designated the working route. The protect route is next identified by reassigning administrative weight values to the remaining routes in the network. Those routes that share resources, such as a fiber bundle or conduit, with the working route are assigned high administrative weight values, while those routes independent of the working route are assigned administrative weight values corresponding to the physical distance of each route. That route having the lowest administrative weight value after working route selection is designated the protect route.

Abstract translation: 根据本发明的特征，通过将管理权重值分配给网络中的每个路由来确定保护和工作路由。 路由的管理权重值可以对应于与该路由相关联的物理距离。 一旦分配了管理权重值，具有最低管理权重值的路由被指定为工作路由。 接下来通过将管理权重值重新分配给网络中的其余路由来识别保护路由。 分配具有工作路径的纤维束或管道等资源的路由被分配高管理权重值，而与工作路由无关的路由被分配与每个路由的物理距离对应的管理权重值。 在工作路线选择后具有最低管理权重值的路由被指定为保护路由。

公开(公告)号：US08576841B2

公开(公告)日：2013-11-05

申请号：US13174437

申请日：2011-06-30

Applicant: Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Murtuza Attarwala

Inventor： Balamurugan Ramaraj ,  Gopi Krishna ,  Ananda Sathyanarayana ,  Apurva Mehta ,  Murtuza Attarwala

IPC: H04L29/02

CPC classification number: H04L63/0236 ,  H04L45/60 ,  H04L45/7457

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110268115A1

公开(公告)日：2011-11-03

申请号：US12770052

申请日：2010-04-29

Applicant: Murtuza ATTARWALA ,  Nitin KUMAR ,  Alok KHAMBATKONE

Inventor： Murtuza ATTARWALA ,  Nitin KUMAR ,  Alok KHAMBATKONE

IPC: H04L12/56

CPC classification number: H04L12/28 ,  H04L45/02 ,  H04L45/16 ,  H04L45/245 ,  H04L45/28

Abstract: Techniques for handling multicast over link aggregated (LAG) interfaces and integrated routing and bridging (IRB) interfaces in a network device are described in which interfaces, at which a data unit is to be transmitted, may be represented hierarchically in which the LAG interfaces and IRB interfaces are represented as pointers. In one implementation, a device may determine routes for data units, where a route for a multicast data unit is represented as a set of interfaces of the device at which the data unit is to be output. Entries in the set of interfaces may include physical interfaces of the device and pointers to LAG interfaces or pointers to the IRB interfaces. The device may generate tokens to represent routes for data units and resolve the pointers to the LAG interfaces or the IRB interfaces to obtain physical interfaces of the router corresponding to a LAG or an IRB.

Abstract translation: 描述了在网络设备中用于处理组播over link聚合（LAG）接口和集成路由和桥接（IRB））接口的技术，其中可以分层地表示数据单元将被发送的接口，其中LAG接口和 IRB接口表示为指针。 在一个实现中，设备可以确定数据单元的路由，其中​​组播数据单元的路由被表示为要输出数据单元的设备的一组接口。 该组接口中的条目可以包括设备的物理接口和指向LAG接口的指针或指向IRB接口的指针。 设备可以生成令牌来表示数据单元的路由，并解析指向LAG接口或IRB接口的指针，以获得与LAG或IRB对应的路由器的物理接口。