公开(公告)号：US08170033B1

公开(公告)日：2012-05-01

申请号：US12475026

申请日：2009-05-29

Applicant: Bhupesh Kothari ,  Rex Fernando

Inventor： Bhupesh Kothari ,  Rex Fernando

IPC: H04L12/28

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/50 ,  H04L45/66

Abstract: A network device includes a control unit configured to execute an extended layer three (L3) routing protocol within a control plane of the network device. The extended L3 routing protocol is extended to process a routing protocol control message having a set of layer two (L2) identifiers of customer devices attached to an autonomous system (AS) and an indicator that specifies a Route Target associated with a Virtual Private Local Area Network Service (VPLS) domain within the AS. The routing protocol control message conforms to a message type of the L3 routing protocol to initiate a flush of the set of L2 identifiers.

Abstract translation: 网络设备包括被配置为在网络设备的控制平面内执行扩展三层（L3）路由协议的控制单元。 扩展的L3路由协议被扩展以处理具有连接到自治系统（AS）的客户设备的一组第二层（L2）标识符的路由协议控制消息，以及指定与虚拟私人本地区域相关联的路由目标的指示符 AS内的网络服务（VPLS）域。 路由协议控制消息符合L3路由协议的消息类型，以启动L2标识符集的刷新。

公开(公告)号：US08780692B2

公开(公告)日：2014-07-15

申请号：US13166700

申请日：2011-06-22

Applicant: Keyur Patel ,  Enke Chen ,  Rex Fernando

Inventor： Keyur Patel ,  Enke Chen ,  Rex Fernando

IPC: H04L12/26 ,  H04L12/28 ,  G06F15/177

CPC classification number: H04L45/021

Abstract: In an embodiment, a method comprises: determining that a session restart on a restarting node has been initiated; in response to determining that the restarting node has preserved a last acknowledged version of routing information received from a peer node, and determining that the restarting node has preserved a routing state corresponding to the last acknowledged version of routing information, transmitting to the peer node a message indicating that the last acknowledged version of routing information and the routing state have been preserved at the restarting node; wherein the method is performed by one or more computing devices.

Abstract translation: 在一个实施例中，一种方法包括：确定重启节点上的会话重新启动已经被启动; 响应于确定重新启动节点已经保存从对等节点接收的路由信息​​的最后确认版本，并且确定重新启动节点已经保持与最后确认的路由信息​​版本相对应的路由状态，向对等节点发送 消息，指示路由信息的最后确认版本和路由状态已经保留在重新启动节点; 其中所述方法由一个或多个计算设备执行。

公开(公告)号：US20120269198A1

公开(公告)日：2012-10-25

申请号：US13166700

申请日：2011-06-22

Applicant: Keyur Patel ,  Enke Chen ,  Rex Fernando

Inventor： Keyur Patel ,  Enke Chen ,  Rex Fernando

IPC: H04L12/56

CPC classification number: H04L45/021

Abstract: In an embodiment, a method comprises: determining that a session restart on a restarting node has been initiated; in response to determining that the restarting node has preserved a last acknowledged version of routing information received from a peer node, and determining that the restarting node has preserved a routing state corresponding to the last acknowledged version of routing information, transmitting to the peer node a message indicating that the last acknowledged version of routing information and the routing state have been preserved at the restarting node; wherein the method is performed by one or more computing devices.

Abstract translation: 在一个实施例中，一种方法包括：确定重启节点上的会话重新启动已经被启动; 响应于确定重新启动节点已经保存从对等节点接收的路由信息​​的最后确认版本，并且确定重新启动节点已经保持与最后确认的路由信息​​版本相对应的路由状态，向对等节点发送 消息，指示路由信息的最后确认版本和路由状态已经保留在重新启动节点; 其中所述方法由一个或多个计算设备执行。

公开(公告)号：US20070153699A1

公开(公告)日：2007-07-05

申请号：US11613804

申请日：2006-12-20

Applicant: Rex Fernando ,  Dheerendra Talur ,  Pradosh Kumar Mohapatra ,  Paul A. Jensen

Inventor： Rex Fernando ,  Dheerendra Talur ,  Pradosh Kumar Mohapatra ,  Paul A. Jensen

IPC: H04J3/14

CPC classification number: H04L45/54 ,  H04L45/02

Abstract: A method of selecting routing tables to include in a network line card consists of determining dependencies of local routes on remote routes using a reference count on prefixes, and selectively downloading remote routes when resolution of a route has a dependency on a remote route. In one embodiment, only remote routes that are needed to forward traffic are downloaded to a network line card.

Abstract translation: 选择路由表以包括在网络线卡中的方法包括使用前缀上的引用计数来确定在远程路由上的本地路由的依赖性，以及当路由的解析对远程路由具有依赖性时，选择性地下载远程路由。 在一个实施例中，仅将转发业务所需的远程路由下载到网络线卡。

公开(公告)号：US20060159034A1

公开(公告)日：2006-07-20

申请号：US11318217

申请日：2005-12-23

Applicant: Dheerendra Talur ,  Rex Fernando ,  Avneesh Sachdev ,  Derek Yeung

Inventor： Dheerendra Talur ,  Rex Fernando ,  Avneesh Sachdev ,  Derek Yeung

IPC: H04L12/28

CPC classification number: H04L45/48 ,  H04L45/00 ,  H04L45/18 ,  H04L45/54

Abstract: A router is described that includes a routing table containing route information and a module to evaluate a route and detect a loop path associated with the route using the routing table. A process is described to detect and eliminate routing loops associated with recursive routes in a routing table, so as to provide a routing table that will be loop free.

Abstract translation: 描述了路由器，其包括包含路由信息的路由表和用于评估路由并且使用路由表检测与路由相关联的循环路径的模块。 描述了一种过程来检测和消除与路由表中的递归路由相关联的路由环路，以便提供将无循环的路由表。

公开(公告)号：US07889712B2

公开(公告)日：2011-02-15

申请号：US11318217

申请日：2005-12-23

Applicant: Dheerendra Talur ,  Rex Fernando ,  Avneesh Sachdev ,  Derek Man-Kit Yeung

Inventor： Dheerendra Talur ,  Rex Fernando ,  Avneesh Sachdev ,  Derek Man-Kit Yeung

IPC: H04L12/28

CPC classification number: H04L45/48 ,  H04L45/00 ,  H04L45/18 ,  H04L45/54

Abstract: A router is described that includes a routing table containing route information and a module to evaluate a route and detect a loop path associated with the route using the routing table. A process is described to detect and eliminate routing loops associated with recursive routes in a routing table, so as to provide a routing table that will be loop free.

Abstract translation: 描述了路由器，其包括包含路由信息的路由表和用于评估路由并且使用路由表检测与路由相关联的循环路径的模块。 描述了一种过程来检测和消除与路由表中的递归路由相关联的路由环路，以便提供将无循环的路由表。

公开(公告)号：US20080225749A1

公开(公告)日：2008-09-18

申请号：US11717947

申请日：2007-03-13

Applicant: Dennis Peng ,  Jeff Peck ,  Rex Fernando ,  Avneesh Sachdev ,  Simon Capper

Inventor： Dennis Peng ,  Jeff Peck ,  Rex Fernando ,  Avneesh Sachdev ,  Simon Capper

IPC: H04L12/28

CPC classification number: H04L61/2015 ,  H04L12/281 ,  H04L29/12367 ,  H04L41/0806 ,  H04L41/0856 ,  H04L41/0869 ,  H04L61/2514 ,  H04L69/16 ,  H04L69/168 ,  H04M11/062

Abstract: Exemplary systems and methods for auto-configuring a network device are provided. In exemplary embodiments, the network device receives network data, which is used to determine identification data for a client. A version of the client identification data is then sent to an ISP by the network device. In response, a public IP address is returned from the ISP. The network device then translates the public IP address into an internal IP address for use with the client. In some embodiments, the network device is verified by a central data center. In some embodiments, the network device may be provisioned for PSTN and/or VoIP calls.

Abstract translation: 提供了用于自动配置网络设备的示例性系统和方法。 在示例性实施例中，网络设备接收用于确定客户端的识别数据的网络数据。 然后，客户端标识数据的版本被网络设备发送到ISP。 作为响应，从ISP返回公共IP地址。 然后，网络设备将公共IP地址转换为用于客户端的内部IP地址。 在一些实施例中，网络设备由中央数据中心验证。 在一些实施例中，网络设备可以被提供用于PSTN和/或VoIP呼叫。

公开(公告)号：US20060233181A1

公开(公告)日：2006-10-19

申请号：US11106414

申请日：2005-04-13

Applicant: Robert Raszuk ,  Rex Fernando ,  Himanshu Shah ,  Keyur Patel

Inventor： Robert Raszuk ,  Rex Fernando ,  Himanshu Shah ,  Keyur Patel

IPC: H04L12/28

CPC classification number: H04L45/28 ,  H04L45/02 ,  H04L45/04 ,  H04L45/54

Abstract: A method and apparatus are disclosed for accelerating Border Gateway Protocol (BGP) route convergence in an autonomous system. A virtual link identifier is assigned to each link of a set of communication links that are established between a BGP host and one or more network elements in one or more networks. For a particular link of the set of communication links, one or more routes that are reachable on the link are determined. The BGP host stores an association of the one or more routes with a BGP identifier of the BGP host and the virtual link identifier that is assigned to the particular link. The BGP host advertises the one or more routes to a BGP peer in a message, where the message includes the BGP identifier and the virtual link identifier.

公开(公告)号：US07706298B2

公开(公告)日：2010-04-27

申请号：US11613804

申请日：2006-12-20

Applicant: Rex Fernando ,  Dheerendra Talur ,  Pradosh Kumar Mohapatra ,  Paul A. Jensen

Inventor： Rex Fernando ,  Dheerendra Talur ,  Pradosh Kumar Mohapatra ,  Paul A. Jensen

IPC: H04L12/56

CPC classification number: H04L45/54 ,  H04L45/02

Abstract: A method of selecting routing tables to include in a network line card consists of determining dependencies of local routes on remote routes using a reference count on prefixes, and selectively downloading remote routes when resolution of a route has a dependency on a remote route. In one embodiment, only remote routes that are needed to forward traffic are downloaded to a network line card.

Abstract translation: 选择路由表以包括在网络线卡中的方法包括使用前缀上的引用计数来确定在远程路由上的本地路由的依赖性，以及当路由的解析对远程路由具有依赖性时，选择性地下载远程路由。 在一个实施例中，仅将转发业务所需的远程路由下载到网络线卡。