公开(公告)号：US20070064704A1

公开(公告)日：2007-03-22

申请号：US11537609

申请日：2006-09-30

申请人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Reddy ,  Chandramouli Sargor ,  John Crawbuck

发明人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Reddy ,  Chandramouli Sargor ,  John Crawbuck

IPC分类号： H04L12/56

CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L45/22

摘要： Methods and Systems are provided for a distributed Provider Edge (PE). A single Virtual Routing and Forwarding device (VRF) is associated with a single customer site. The VRF includes a single routing table (RIB) and a single forwarding table (FIB). The VRF also includes a plurality of Virtual Private Network (VPN) Protocol Instance Modules (VRP), where each VRP is associated with a different VPN from the customer site. Each VRP accesses the RIB directly and the FIB indirectly to acquiring addressing/routing information for a received data packet. Moreover, each VRP uses a data plane of the VRP to communicate the data packets to a PE backbone device. In turn, the PE backbone device uses the data plane to communicate with each of the VRPs, and the PE backbone device communicates with one or more tunnels.

摘要翻译： 为分布式提供商边缘（PE）提供方法和系统。 单个虚拟路由和转发设备（VRF）与单个客户站点相关联。 VRF包括单个路由表（RIB）和单个转发表（FIB）。 VRF还包括多个虚拟专用网（VPN）协议实例模块（Virtual Private Network，VPN）协议实例模块（VRP），其中每个VRP与客户站点的不同的VPN相关联。 每个VRP直接访问RIB和FIB间接地获取接收的数据分组的寻址/路由信息。 此外，每个VRP使用VRP的数据平面将数据包传送到PE骨干设备。 PE骨干设备依次使用数据平面与每个VRP通信，PE骨干设备与一个或多个隧道进行通信。

公开(公告)号：US07116665B2

公开(公告)日：2006-10-03

申请号：US10163073

申请日：2002-06-04

申请人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Srinivasa Reddy ,  Chandramouli Sargor ,  John Crawbuck

发明人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Srinivasa Reddy ,  Chandramouli Sargor ,  John Crawbuck

IPC分类号： H04L12/56

CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L45/22

摘要： Methods and Systems are provided for a distributed Provider Edge (PE). A single Virtual Routing and Forwarding device (VRF) is associated with a single customer site. The VRF includes a single routing table (RIB) and a single forwarding table (FIB). The VRF also includes a plurality of Virtual Private Network (VPN) Protocol Instance Modules (VRP), where each VRP is associated with a different VPN from the customer site. Each VRP accesses the RIB directly and the FIB indirectly to acquiring addressing/routing information for a received data packet. Moreover, each VRP uses a data plane of the VRP to communicate the data packets to a PE backbone device. In turn, the PE backbone device uses the data plane to communicate with each of the VRPs, and the PE backbone device communicates with one or more tunnels.

摘要翻译： 为分布式提供商边缘（PE）提供方法和系统。 单个虚拟路由和转发设备（VRF）与单个客户站点相关联。 VRF包括单个路由表（RIB）和单个转发表（FIB）。 VRF还包括多个虚拟专用网（VPN）协议实例模块（Virtual Private Network，VPN）协议实例模块（VRP），其中每个VRP与客户站点的不同的VPN相关联。 每个VRP直接访问RIB和FIB间接地获取接收的数据分组的寻址/路由信息。 此外，每个VRP使用VRP的数据平面将数据包传送到PE骨干设备。 PE骨干设备依次使用数据平面与每个VRP通信，PE骨干设备与一个或多个隧道进行通信。

公开(公告)号：US20120099596A1

公开(公告)日：2012-04-26

申请号：US13338213

申请日：2011-12-27

申请人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Srinivasa Reddy ,  Chandramouli Sargor ,  John Crawbuck

发明人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Srinivasa Reddy ,  Chandramouli Sargor ,  John Crawbuck

IPC分类号： H04L12/56

CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L45/22

摘要： Methods and systems for a distributed provider edge are provided. According to one embodiment, a one-to-one association is formed between a Virtual Routing and Forwarding device (VRF) of a provider edge device (PE) of a service provider and a customer site. The VRF includes a routing information base (RIB) and a forwarding information base (FIB). A network interface module is instantiated within the VRF for each network interface employed, such as an intranet, extranet, Virtual Private Network (VPN) and/or Internet interface. A first packet is received at the PE via a first network interface. A first network interface module associated with the first network interface accesses the RIB to acquire routing information for the first packet. A second packet is received via a second network interface. A second network interface module associated with the second network interface accesses the RIB to acquire routing information for the second packet.

摘要翻译： 提供了分布式提供商边缘的方法和系统。 根据一个实施例，在服务提供商的提供商边缘设备（PE）和客户站点的虚拟路由和转发设备（VRF）之间形成一对一关联。 VRF包括路由信息库（RIB）和转发信息库（FIB）。 对于所采用的每个网络接口，例如内部网，外部网，虚拟专用网（VPN）和/或因特网接口，在VRF内实例化网络接口模块。 在PE处经由第一网络接口接收第一分组。 与第一网络接口相关联的第一网络接口模块访问RIB以获取第一分组的路由信息​​。 经由第二网络接口接收第二个分组。 与第二网络接口相关联的第二网络接口模块访问RIB以获取第二分组的路由信息​​。

公开(公告)号：US08085776B2

公开(公告)日：2011-12-27

申请号：US11537609

申请日：2006-09-30

申请人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Srinivasa Reddy ,  Chandramouli Sargor ,  John Crawbuck

发明人： Rajesh Balay ,  Vijay Srinivasan ,  Sanjeev Tyagi ,  Pasula Srinivasa Reddy ,  Chandramouli Sargor ,  John Crawbuck

IPC分类号： H04L12/28

CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L45/22

摘要： Methods and Systems are provided for a distributed Provider Edge (PE). A single Virtual Routing and Forwarding device (VRF) is associated with a single customer site. The VRF includes a single routing table (RIB) and a single forwarding table (FIB). The VRF also includes a plurality of Virtual Private Network (VPN) Protocol Instance Modules (VRP), where each VRP is associated with a different VPN from the customer site. Each VRP accesses the RIB directly and the FIB indirectly to acquiring addressing/routing information for a received data packet. Moreover, each VRP uses a data plane of the VRP to communicate the data packets to a PE backbone device. In turn, the PE backbone device uses the data plane to communicate with each of the VRPs, and the PE backbone device communicates with one or more tunnels.

摘要翻译： 为分布式提供商边缘（PE）提供方法和系统。 单个虚拟路由和转发设备（VRF）与单个客户站点相关联。 VRF包括单个路由表（RIB）和单个转发表（FIB）。 VRF还包括多个虚拟专用网（VPN）协议实例模块（Virtual Private Network，VPN）协议实例模块（VRP），其中每个VRP与客户站点的不同的VPN相关联。 每个VRP直接访问RIB和FIB间接地获取接收到的数据分组的寻址/路由信息。 此外，每个VRP使用VRP的数据平面将数据包传送到PE骨干设备。 PE骨干设备依次使用数据平面与每个VRP通信，PE骨干设备与一个或多个隧道进行通信。