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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
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。
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2.发明申请Packet Switching Label Assignment Across Multiple Packet Switching Forwarding Groups 有权跨多个分组交换转发组的分组交换标签分配公开(公告)号：US20120213225A1
公开(公告)日：2012-08-23
申请号：US13031746
申请日：2011-02-22
Applicant: Karthik Subramanian , Dheerendra Talur , Pradosh Mohapatra , Clarence Filsfils
Inventor： Karthik Subramanian , Dheerendra Talur , Pradosh Mohapatra , Clarence Filsfils
IPC: H04L12/56
CPC classification number: H04L45/50 , H04L45/586
Abstract: In one embodiment, a packet switching device assigns a same particular packet switching label to each particular route of a plurality of particular routes having the same one or more best paths, wherein the plurality of particular routes includes routes from at least two different forwarding groups. A forwarding group is defined as a specific route, one or more routes associated with a same customer edge router, or one or more routes associated with a single virtual routing and forwarding domain (VRF). The packet switching device advertises to other packet switching device(s) to add this same particular label to packets having one of the plurality of particular routes, which they do. The packet switching device then packet switches packets based on the particular label received in a label field in a header of these packets.
Abstract translation: 在一个实施例中，分组交换设备向具有相同一个或多个最佳路径的多个特定路由的每个特定路由分配相同的特定分组交换标签，其中所述多个特定路由包括来自至少两个不同转发组的路由。 转发组被定义为特定路由，与相同客户边缘路由器相关联的一个或多个路由，或与单个虚拟路由和转发域（VRF）相关联的一个或多个路由。 分组交换设备通告给其他分组交换设备，以将相同的特定标签添加到具有多个特定路由中的一个的分组。 分组交换设备然后基于在这些分组的报头中的标签字段中接收的特定标签来分组交换分组。
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3.发明申请SUBSETS OF THE FORWARD INFORMATION BASE (FIB) DISTRIBUTED AMONG LINE CARDS IN A SWITCHING DEVICE 有权在切换设备中的线卡上分配的前向信息库（FIB）的附件公开(公告)号：US20100215047A1
公开(公告)日：2010-08-26
申请号：US12390391
申请日：2009-02-20
Applicant: Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
Inventor： Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
IPC: H04L12/56
CPC classification number: H04L45/00 , H04L45/38 , H04L45/54 , H04L49/3009
Abstract: Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with subsets of the Forward Information Base (FIB) distributed among line cards in a switching device; especially wherein one or more of the line cards does not contain the complete FIB, and this line card forwards packets, for which it does not have the forwarding information, to another line card which has the forwarding information for the packet.
Abstract translation: 公开了尤其涉及在交换设备中的线路卡之间分配的前向信息库（FIB）的子集的方法，装置，计算机存储介质，机制和装置; 特别是其中一个或多个线路卡不包含完整的FIB，并且该线路卡将不具有转发信息的分组转发到具有用于分组的转发信息的另一线路卡。
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Patent Agency Ranking
4.发明授权Packet switching label assignment across multiple packet switching forwarding groups 有权跨多个分组交换转发组的分组交换标签分配公开(公告)号：US09094335B2
公开(公告)日：2015-07-28
申请号：US13031746
申请日：2011-02-22
Applicant: Karthik Subramanian , Dheerendra Talur , Pradosh Mohapatra , Clarence Filsfils
Inventor： Karthik Subramanian , Dheerendra Talur , Pradosh Mohapatra , Clarence Filsfils
IPC: H04L12/56 , H04L12/723 , H04L12/713
CPC classification number: H04L45/50 , H04L45/586
Abstract: In one embodiment, a packet switching device assigns a same particular packet switching label to each particular route of a plurality of particular routes having the same one or more best paths, wherein the plurality of particular routes includes routes from at least two different forwarding groups. A forwarding group is defined as a specific route, one or more routes associated with a same customer edge router, or one or more routes associated with a single virtual routing and forwarding domain (VRF). The packet switching device advertises to other packet switching device(s) to add this same particular label to packets having one of the plurality of particular routes, which they do. The packet switching device then packet switches packets based on the particular label received in a label field in a header of these packets.
Abstract translation: 在一个实施例中，分组交换设备向具有相同一个或多个最佳路径的多个特定路由的每个特定路由分配相同的特定分组交换标签，其中所述多个特定路由包括来自至少两个不同转发组的路由。 转发组被定义为特定路由，与相同客户边缘路由器相关联的一个或多个路由，或与单个虚拟路由和转发域（VRF）相关联的一个或多个路由。 分组交换设备通告给其他分组交换设备，以将相同的特定标签添加到具有多个特定路由中的一个的分组。 分组交换设备然后基于在这些分组的报头中的标签字段中接收的特定标签来分组交换分组。
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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
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。
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6.发明授权Subsets of the forward information base (FIB) distributed among line cards in a switching device 有权在交换设备中的线路卡之间分配的前向信息库（FIB）的子集公开(公告)号：US07826369B2
公开(公告)日：2010-11-02
申请号：US12390391
申请日：2009-02-20
Applicant: Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
Inventor： Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
CPC classification number: H04L45/00 , H04L45/38 , H04L45/54 , H04L49/3009
Abstract: Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with subsets of the Forward Information Base (FIB) distributed among line cards in a switching device; especially wherein one or more of the line cards does not contain the complete FIB, and this line card forwards packets, for which it does not have the forwarding information, to another line card which has the forwarding information for the packet.
Abstract translation: 公开了尤其涉及在交换设备中的线路卡之间分配的前向信息库（FIB）的子集的方法，装置，计算机存储介质，机制和装置; 特别是其中一个或多个线路卡不包含完整的FIB，并且该线路卡将不具有转发信息的分组转发到具有用于分组的转发信息的另一线路卡。
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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
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。
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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
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。
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