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1. 发明授权

US07447167B2 Method and apparatus for the creation and maintenance of a self-adjusting repository of service level diagnostics test points for network based VPNs 有权
标题翻译：用于创建和维护基于网络的VPN的服务级别诊断测试点的自调节存储库的方法和装置
公开(公告)号：US07447167B2
公开(公告)日：2008-11-04
申请号：US11091058
申请日：2005-03-28
申请人： Thomas D. Nadeau , Michael T. Piecuch , Vanson Lim , Robert Hanzl
发明人： Thomas D. Nadeau , Michael T. Piecuch , Vanson Lim , Robert Hanzl
IPC分类号： H04L12/28
CPC分类号： H04L45/04 , H04L12/4641 , H04L41/12 , H04L41/5003 , H04L43/50 , H04L45/00 , H04L45/502
摘要： A method and apparatus for producing and maintaining a repository of service level test points for network based VPNs is presented. A determination is made regarding whether there is more than one Autonomous System (AS) in a network for one or more VPNs. When there is not more than one AS then next hops are found for the VPN. Next, VPN prefixes associated with the VPN are found and a set of Label Switching Paths (LSPs) in use for the VPN are produced. When the determination is that there is more than one AS then routers in the present AS associated with the VPN are found. VPN label stacks are used to find all Provider Edge (PE) routers associated with the VPN. A set of LSPs in use for the VPN is produced from the routers and the VPN label stacks
摘要翻译：提出了一种用于生成和维护基于网络的VPN的服务级测试点库的方法和装置。确定在一个或多个VPN的网络中是否存在多于一个的自治系统（AS）。当没有多于一个AS时，VPN的下一跳将被发现。接下来，找到与VPN相关联的VPN前缀，并生成一组用于VPN的标签交换路径（LSP）。当确定存在多于一个AS时，找到与VPN相关联的当前AS中的路由器。 VPN标签堆栈用于查找与VPN关联的所有Provider Edge（PE）路由器。用于VPN的一组LSP由路由器和VPN标签堆栈产生

2. 发明授权

US07623535B2 Routing protocol support for half duplex virtual routing and forwarding instance 有权
标题翻译：路由协议支持半双工虚拟路由和转发实例
公开(公告)号：US07623535B2
公开(公告)日：2009-11-24
申请号：US10937661
申请日：2004-09-09
申请人： James Guichard , Robert Hanzl
发明人： James Guichard , Robert Hanzl
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L45/54 , H04L45/02
摘要： A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (VRF) table for a router with information to forward incoming packets to a central location within a hub and spoke environment. The method, apparatus and computer program also function to populate a routing Virtual Routing and Forwarding (VRF) table for the router with routing information received from ingress interfaces of the router. The method, apparatus and computer program function further forwards packets received on egress interfaces of the router according to the forwarding VRF table.
摘要翻译：一种用于为半双工虚拟路由和转发（HDVRF）环境提供动态路由支持的方法，设备和计算机程序产品。方法，设备和计算机程序功能为路由器配置转发虚拟路由和转发（VRF）表，其中信息将信息转发到集线器和辐条环境中的中心位置。方法，装置和计算机程序还可以为路由器填充路由选择路由和路由转发（VRF）表，路由器的路由信息从路由器的入口接口接收。方法，装置和计算机程序功能还根据转发VRF表进一步转发在路由器的出口接口上接收的数据包。

3. 发明授权

US07742477B1 Interconnectivity between autonomous systems 有权
标题翻译：自主系统之间的互联
公开(公告)号：US07742477B1
公开(公告)日：2010-06-22
申请号：US11347182
申请日：2006-02-03
申请人： James N. Guichard , Robert Hanzl , Mohammed Sayeed , Sumit Mukhopadhyay
发明人： James N. Guichard , Robert Hanzl , Mohammed Sayeed , Sumit Mukhopadhyay
IPC分类号： H04L12/56
CPC分类号： H04L45/04 , H04L45/02 , H04L45/50
摘要： A method, apparatus and computer program product each provides interconnectivity between autonomous systems. A control plane and a data plane are included in a network device. A single interface is included in the control plane for all customers. An interface is included in the data plane for each respective one of the customers.
摘要翻译：一种方法，装置和计算机程序产品各自提供自治系统之间的互连。控制平面和数据平面包含在网络设备中。所有客户的控制平面都包含一个界面。在每个相应的一个客户的数据平面中包括一个界面。

4. 发明授权

US07957408B2 Routing protocol support for half duplex virtual routing and forwarding instance 有权
标题翻译：路由协议支持半双工虚拟路由和转发实例
公开(公告)号：US07957408B2
公开(公告)日：2011-06-07
申请号：US12621834
申请日：2009-11-19
申请人： James Guichard , Robert Hanzl
发明人： James Guichard , Robert Hanzl
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L45/54 , H04L45/02
摘要： A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (VRF) table for a router with information to forward incoming packets to a central location within a hub and spoke environment. The method, apparatus and computer program also function to populate a routing Virtual Routing and Forwarding (VRF) table for the router with routing information received from ingress interfaces of the router. The method, apparatus and computer program function further forwards packets received on egress interfaces of the router according to the forwarding VRF table.
摘要翻译：一种用于为半双工虚拟路由和转发（HDVRF）环境提供动态路由支持的方法，设备和计算机程序产品。方法，设备和计算机程序功能为路由器配置转发虚拟路由和转发（VRF）表，其中信息将信息转发到集线器和辐条环境中的中心位置。方法，装置和计算机程序还可以为路由器填充路由选择路由和路由转发（VRF）表，路由器的路由信息从路由器的入口接口接收。方法，装置和计算机程序功能还根据转发VRF表进一步转发在路由器的出口接口上接收的数据包。

5. 发明申请

US20100061281A1 ROUTING PROTOCOL SUPPORT FOR HALF DUPLEX VIRTUAL ROUTING AND FORWARDING INSTANCE 有权
标题翻译：半双工虚拟路由和转发实例的路由协议支持
公开(公告)号：US20100061281A1
公开(公告)日：2010-03-11
申请号：US12621834
申请日：2009-11-19
申请人： James Guichard , Robert Hanzl
发明人： James Guichard , Robert Hanzl
IPC分类号： H04L5/16 , H04L12/56
CPC分类号： H04L45/54 , H04L45/02
摘要： A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (VRF) table for a router with information to forward incoming packets to a central location within a hub and spoke environment. The method, apparatus and computer program also function to populate a routing Virtual Routing and Forwarding (VRF) table for the router with routing information received from ingress interfaces of the router. The method, apparatus and computer program function further forwards packets received on egress interfaces of the router according to the forwarding VRF table.
摘要翻译：一种用于为半双工虚拟路由和转发（HDVRF）环境提供动态路由支持的方法，设备和计算机程序产品。方法，设备和计算机程序功能为路由器配置转发虚拟路由和转发（VRF）表，其中信息将信息转发到集线器和辐条环境中的中心位置。方法，装置和计算机程序还可以为路由器填充路由选择路由和路由转发（VRF）表，路由器的路由信息从路由器的入口接口接收。方法，装置和计算机程序功能还根据转发VRF表进一步转发在路由器的出口接口上接收的数据包。

6. 发明申请

US20060215579A1 Method and apparatus for the creation and maintenance of a self-adjusting repository of service level diagnostics test points for network based VPNs 有权
标题翻译：用于创建和维护基于网络的VPN的服务级别诊断测试点的自调节存储库的方法和装置
公开(公告)号：US20060215579A1
公开(公告)日：2006-09-28
申请号：US11091058
申请日：2005-03-28
申请人： Thomas Nadeau , Michael Piecuch , Vanson Lim , Robert Hanzl
发明人： Thomas Nadeau , Michael Piecuch , Vanson Lim , Robert Hanzl
IPC分类号： H04L12/56 , H04L12/28 , H04L12/26 , H04J1/16 , H04J3/14 , H04L1/00
CPC分类号： H04L45/04 , H04L12/4641 , H04L41/12 , H04L41/5003 , H04L43/50 , H04L45/00 , H04L45/502
摘要： A method and apparatus for producing and maintaining a repository of service level test points for network based VPNs is presented. A determination is made regarding whether there is more than one Autonomous System (AS) in a network for one or more VPNs. When there is not more than one AS then next hops are found for the VPN. Next, VPN prefixes associated with the VPN are found and a set of Label Switching Paths (LSPs) in use for the VPN are produced. When the determination is that there is more than one AS then routers in the present AS associated with the VPN are found. VPN label stacks are used to find all Provider Edge (PE) routers associated with the VPN. A set of LSPs in use for the VPN is produced from the routers and the VPN label stacks
摘要翻译：提出了一种用于生成和维护基于网络的VPN的服务级测试点库的方法和装置。确定在一个或多个VPN的网络中是否存在多于一个的自治系统（AS）。当没有多于一个AS时，VPN的下一跳将被发现。接下来，找到与VPN相关联的VPN前缀，并生成一组用于VPN的标签交换路径（LSP）。当确定存在多于一个AS时，找到与VPN相关联的当前AS中的路由器。 VPN标签堆栈用于查找与VPN关联的所有Provider Edge（PE）路由器。用于VPN的一组LSP由路由器和VPN标签堆栈产生

7. 发明申请

US20050083955A1 Methods and apparatus to support routing of information 有权
标题翻译：支持信息路由的方法和装置
公开(公告)号：US20050083955A1
公开(公告)日：2005-04-21
申请号：US10674079
申请日：2003-09-29
申请人： James Guichard , Robert Hanzl
发明人： James Guichard , Robert Hanzl
IPC分类号： H04L12/46 , H04L12/56 , H04L29/06 , H04L29/08 , H04L12/28 , G06F15/173
CPC分类号： H04L45/00 , H04L12/4641 , H04L45/302 , H04L63/0892 , H04L67/327 , H04L69/14 , H04L69/329
摘要： A first network node maintains separate routing policy information to forward network traffic depending on a direction of the network traffic. Upstream routing policy information at the first node identifies a second node to forward upstream traffic received from at least a first client communicating through the first node. Downstream routing policy information at the first node identifies how to forward downstream network traffic received from another node to the first client. By preventing use of the downstream policy routing information by the first client to route upstream network traffic, the first node is able to forward traffic along a path that the network traffic otherwise would have not traveled. For example, network traffic communicated through the first node can be forced to travel through another network node through which it would have not otherwise have passed if the downstream policy information was available to route the network traffic.
摘要翻译：第一网络节点维护单独的路由策略信息以根据网络流量的方向来转发网络流量。在第一节点处的上行路由策略信息标识第二节点以转发从至少第一客户端通过第一节点通信的上行流量。第一节点的下行路由策略信息标识如何将从另一个节点接收的下行网络流量转发到第一个客户端。通过防止第一客户端使用下行策略路由信息来路由上游网络流量，第一节点能够沿着网络流量否则不会行进的路径转发流量。例如，如果下行策略信息可用于路由网络流量，则可以强制通过第一节点通信的网络流量经过另一个网络节点，否则该网络将不会通过。

8. 发明授权

US07698456B2 Methods and apparatus to support routing of information 有权
标题翻译：支持信息路由的方法和装置
公开(公告)号：US07698456B2
公开(公告)日：2010-04-13
申请号：US10674079
申请日：2003-09-29
申请人： James N. Guichard , Robert Hanzl , Henk Smit
发明人： James N. Guichard , Robert Hanzl , Henk Smit
IPC分类号： G06F15/173
CPC分类号： H04L45/00 , H04L12/4641 , H04L45/302 , H04L63/0892 , H04L67/327 , H04L69/14 , H04L69/329
摘要： A first network node maintains separate routing policy information to forward network traffic depending on a direction of the network traffic. Upstream routing policy information at the first node identifies a second node to forward upstream traffic received from at least a first client communicating through the first node. Downstream routing policy information at the first node identifies how to forward downstream network traffic received from another node to the first client. By preventing use of the downstream policy routing information by the first client to route upstream network traffic, the first node is able to forward traffic along a path that the network traffic otherwise would have not traveled. For example, network traffic communicated through the first node can be forced to travel through another network node through which it would have not otherwise have passed if the downstream policy information was available to route the network traffic.
摘要翻译：第一网络节点维护单独的路由策略信息以根据网络流量的方向来转发网络流量。在第一节点处的上行路由策略信息标识第二节点以转发从至少第一客户端通过第一节点通信的上行流量。第一节点的下行路由策略信息标识如何将从另一个节点接收的下行网络流量转发到第一个客户端。通过防止第一客户端使用下行策略路由信息来路由上游网络流量，第一节点能够沿着网络流量否则不会行进的路径转发流量。例如，如果下行策略信息可用于路由网络流量，则可以强制通过第一节点通信的网络流量经过另一个网络节点，否则该网络将不会通过。

9. 发明授权

US07373660B1 Methods and apparatus to distribute policy information 有权
标题翻译：分发政策信息的方法和手段
公开(公告)号：US07373660B1
公开(公告)日：2008-05-13
申请号：US10649755
申请日：2003-08-26
申请人： James N. Guichard , Daniel C. Tappan , Robert Hanzl , W. Scott Wainner
发明人： James N. Guichard , Daniel C. Tappan , Robert Hanzl , W. Scott Wainner
IPC分类号： G06F17/00
CPC分类号： H04L47/10 , H04L63/0272 , H04L63/164 , H04L63/20
摘要： A first node generates and transmits a notification message including routing policy attributes such as network address information and a corresponding gateway identifier. The gateway identifier identifies a gateway in a physical network through which future generated data messages shall be forwarded to at least one host computer (e.g., any computer having an associated network address) as indicated by the network address information. A second node receiving the notification message utilizes the routing policy attributes to dynamically update its database identifying how to forward data packets. In this way, nodes (e.g., CE routers) of a network can be dynamically configured to support routing of messages based on the network address information and gateway identifier disseminated along with the notification message.
摘要翻译：第一节点生成并发送包括诸如网络地址信息和对应的网关标识符的路由策略属性的通知消息。网关标识符标识物理网络中的网关，未来生成的数据消息将被转发到至少一个主机计算机（例如，具有相关网络地址的任何计算机），如网络地址信息所示。接收到通知消息的第二节点利用路由策略属性来动态地更新其数据库，以识别如何转发数据分组。以这种方式，网络的节点（例如，CE路由器）可以被动态地配置为基于与通知消息一起分发的网络地址信息和网关标识符来支持消息的路由。

10. 发明申请

US20060050653A1 Routing protocol support for half duplex virtual routing and forwarding instance 有权
公开(公告)号：US20060050653A1
公开(公告)日：2006-03-09
申请号：US10937661
申请日：2004-09-09
申请人： James Guichard , Robert Hanzl
发明人： James Guichard , Robert Hanzl
IPC分类号： H04L12/28
CPC分类号： H04L45/54 , H04L45/02
摘要： A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (VRF) table for a router with information to forward incoming packets to a central location within a hub and spoke environment. The method, apparatus and computer program also function to populate a routing Virtual Routing and Forwarding (VRF) table for the router with routing information received from ingress interfaces of the router. The method, apparatus and computer program function further forwards packets received on egress interfaces of the router according to the forwarding VRF table.

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