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1. 发明授权

US07864669B2 Method of constructing a backup path in an autonomous system 有权
标题翻译：在自治系统中构建备份路径的方法
公开(公告)号：US07864669B2
公开(公告)日：2011-01-04
申请号：US11254587
申请日：2005-10-20
申请人： Olivier Bonaventure , Pierre Francois , Clarence Filsfils , Stewart Bryant , David D. Ward , John Galen Scudder , Stefano B. Previdi , Ian Michael Charles Shand , Gargi Nalawade
发明人： Olivier Bonaventure , Pierre Francois , Clarence Filsfils , Stewart Bryant , David D. Ward , John Galen Scudder , Stefano B. Previdi , Ian Michael Charles Shand , Gargi Nalawade
IPC分类号： H04L12/26
CPC分类号： H04L45/22 , H04L45/04 , H04L45/28 , H04L2212/00
摘要： A method of constructing a backup path in an autonomous system (AS) for failure of an inter-AS link is described. The method comprises identifying an alternate inter-AS path and constructing a tunnel to an end point on the alternate path.
摘要翻译：描述了在自治系统（AS）中构建用于AS间链路故障的备用路径的方法。该方法包括识别替代的AS间路径并构建到备用路径上的终点的隧道。

2. 发明申请

US20070091795A1 Method of constructing a backup path in an autonomous system 有权
标题翻译：在自治系统中构建备份路径的方法
公开(公告)号：US20070091795A1
公开(公告)日：2007-04-26
申请号：US11254587
申请日：2005-10-20
申请人： Olivier Bonaventure , Pierre Francois , Clarence Filsfils , Stewart Bryant , David Ward , John Scudder , Stefano Previdi , Ian Shand , Gargi Nalawade
发明人： Olivier Bonaventure , Pierre Francois , Clarence Filsfils , Stewart Bryant , David Ward , John Scudder , Stefano Previdi , Ian Shand , Gargi Nalawade
IPC分类号： H04J3/14 , H04L12/56
CPC分类号： H04L45/22 , H04L45/04 , H04L45/28 , H04L2212/00
摘要： A method of constructing a backup path in an autonomous system (AS) for failure of an inter-AS link is described. The method comprises identifying an alternate inter-AS path and constructing a tunnel to an end point on the alternate path.
摘要翻译：描述了在自治系统（AS）中构建用于AS间链路故障的备用路径的方法。该方法包括识别替代的AS间路径并构建到备用路径上的终点的隧道。

3. 发明授权

US07697416B2 Constructing a repair path in the event of non-availability of a routing domain 有权
标题翻译：在路由域不可用的情况下构建修复路径
公开(公告)号：US07697416B2
公开(公告)日：2010-04-13
申请号：US11518382
申请日：2006-09-08
申请人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Robert Raszuk , Keyur Patel , Clarence Filsfils , Stefano B. Previdi
发明人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Robert Raszuk , Keyur Patel , Clarence Filsfils , Stefano B. Previdi
IPC分类号： H04L1/00 , H04L12/26 , H04L12/28 , H04L12/56
CPC分类号： H04L45/04 , H04L45/02 , H04L45/28
摘要： In one embodiment, an apparatus and method are described for constructing a repair path in the event of non-availability of a routing domain component of a routing domain comprising, as components, links and nodes. The apparatus is arranged to receive respective network repair addresses from each of the far-side and near-side advertising node for use in the event of non-availability of a routing domain component between the advertising node. The apparatus is further arranged to advertise the near-side advertising node network repair address to one or more far-side nodes via a path external to the routing domain.
摘要翻译：在一个实施例中，描述了在路由域的路由域组件的不可用性的情况下构建修复路径的装置和方法，该路由域组件包括作为组件的链路和节点。该装置被安排为从广播节点和广播节点之间的路由域组件不可用的情况下接收来自远侧和近侧广告节点的相应网络修复地址。该装置还被布置成经由路由域外部的路径将近侧广告节点网络修复地址通告给一个或多个远侧节点。

4. 发明授权

US07957306B2 Providing reachability information in a routing domain of an external destination address in a data communications network 有权
标题翻译：在数据通信网络中的外部目的地地址的路由域中提供可达性信息
公开(公告)号：US07957306B2
公开(公告)日：2011-06-07
申请号：US11518383
申请日：2006-09-08
申请人： Stewart F. Bryant , Mike Shand , Gargi Nalawade , Robert Raszuk , Keyur Patel , David D. Ward , Clarence Filsfils , Stefano B. Previdi
发明人： Stewart F. Bryant , Mike Shand , Gargi Nalawade , Robert Raszuk , Keyur Patel , David D. Ward , Clarence Filsfils , Stefano B. Previdi
IPC分类号： H04L12/26 , H04L12/66 , G06F15/16
CPC分类号： H04L45/22 , H04L45/02 , H04L45/04 , H04L45/28
摘要： An apparatus for providing reachability in a routing domain of a data communications network having as components nodes and links therebetween for a routing domain external destination address is provided. The apparatus is arranged to advertise destination address reachability internally to nodes in the routing domain and associate a reachability category with the internal advertisement of the destination address reachability.
摘要翻译：提供了一种用于在数据通信网络的路由域中提供可达性的装置，其具有用于路由域外部目的地地址的节点和链路之间的组件。该设备被布置为在路由域中的节点内部向目的地址可达性通告，并将可达性类别与目的地址可达性的内部广告相关联。

5. 发明申请

US20080062986A1 Providing reachability information in a routing domain of an external destination address in a data communications network 有权
标题翻译：在数据通信网络中的外部目的地地址的路由域中提供可达性信息
公开(公告)号：US20080062986A1
公开(公告)日：2008-03-13
申请号：US11518383
申请日：2006-09-08
申请人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Keyur Patel , Clarence Filsfils , Stefano B. Previdi , Robert Raszuk
发明人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Keyur Patel , Clarence Filsfils , Stefano B. Previdi , Robert Raszuk
IPC分类号： H04L12/56
CPC分类号： H04L45/22 , H04L45/02 , H04L45/04 , H04L45/28
摘要： An apparatus for providing reachability in a routing domain of a data communications network having as components nodes and links therebetween for a routing domain—external destination address is described. The apparatus is arranged to advertise destination address reachability internally to nodes in the routing domain and associate a reachability category with said internal advertisement of said destination address reachability.
摘要翻译：描述了一种用于在数据通信网络的路由域中提供可达性的装置，其具有用于路由域 - 外部目的地地址之间的节点和链路之间的组件。该装置被布置为在内部向路由域中的节点通告目的地址可达性，并将可达性类别与所述目的地址可达性的所述内部广告相关联。

6. 发明申请

US20080062861A1 Constructing a repair path in the event of non-availability of a routing domain 有权
标题翻译：在路由域不可用的情况下构建修复路径
公开(公告)号：US20080062861A1
公开(公告)日：2008-03-13
申请号：US11518382
申请日：2006-09-08
申请人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Robert Raszuk , Keyur Patel , Clarence Filsfils , Stefano B. Previdi
发明人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Robert Raszuk , Keyur Patel , Clarence Filsfils , Stefano B. Previdi
IPC分类号： H04J3/14
CPC分类号： H04L45/04 , H04L45/02 , H04L45/28
摘要： In one embodiment, an apparatus and method are described for constructing a repair path in the event of non-availability of a routing domain component of a routing domain comprising, as components, links and nodes. The apparatus is arranged to receive respective network repair addresses from each of the far-side and near-side advertising node for use in the event of non-availability of a routing domain component between the advertising node. The apparatus is further arranged to advertise the near-side advertising node network repair address to one or more far-side nodes via a path external to the routing domain.
摘要翻译：在一个实施例中，描述了在路由域的路由域组件的不可用性的情况下构建修复路径的装置和方法，该路由域组件包括作为组件的链路和节点。该装置被安排为从广播节点和广播节点之间的路由域组件不可用的情况下接收来自远侧和近侧广告节点的相应网络修复地址。该装置还被布置成经由路由域外部的路径将近侧广告节点网络修复地址通告给一个或多个远侧节点。

7. 发明授权

US07633874B1 Soft notification messaging for a routing protocol 有权
标题翻译：路由协议的软通知消息
公开(公告)号：US07633874B1
公开(公告)日：2009-12-15
申请号：US10833811
申请日：2004-04-28
申请人： Gargi Nalawade , Keyur P. Patel , John Galen Scudder , David D. Ward
发明人： Gargi Nalawade , Keyur P. Patel , John Galen Scudder , David D. Ward
IPC分类号： G06F11/00 , G01R31/08 , G08C15/00 , G06F15/173
CPC分类号： H04L45/00 , H04L45/04
摘要： A soft notification technique isolates address family application based errors or events occurring within a routing protocol, such as the Border Gateway Protocol (BGP), used to exchange routing information between a router and its peer router over a BGP session operating on a reliable transport. The technique apportions the session into a plurality of logical subsets, each of which is associated with an address family application (AFI/SAFI) module of a BGP protocol executing on the routers. BGP soft notification messaging is employed to allow the router to notify its peer of an isolated error condition or event associated with an AFI/SAFI module. Isolation of the error/event enables restart (“soft reset”) of only the associated AFI/SAFI module, thereby obviating the need to reset or terminate the entire BGP session and reliable transport between the router and peer. Notably, soft reset of the module occurs without disrupting services provided by other AFI/SAFI modules of the BGP protocol.
摘要翻译：软通知技术隔离在路由协议（如边界网关协议（BGP））中发生的地址族应用程序错误或事件，用于通过在可靠传输上运行的BGP会话在路由器与其对等路由器之间交换路由信息。该技术将会话分配到多个逻辑子集中，每个逻辑子集与在路由器上执行的BGP协议的地址族应用（AFI / SAFI）模块相关联。使用BGP软通知消息传递来允许路由器通知其对等体与AFI / SAFI模块相关联的隔离的错误状况或事件。隔离错误/事件只能使相关的AFI / SAFI模块重新启动（“软复位”），从而避免重置或终止整个BGP会话以及路由器和对等体之间的可靠传输。值得注意的是，模块的软复位不会中断BGP协议的其他AFI / SAFI模块提供的服务。

8. 发明授权

US08111616B2 Constructing a repair path in the event of failure of an inter-routing domain system link 有权
标题翻译：在路由间域网系统链路故障的情况下构建修复路径
公开(公告)号：US08111616B2
公开(公告)日：2012-02-07
申请号：US11518405
申请日：2006-09-08
申请人： Mike Shand , Stewart F. Bryant , Gargi Nalawade , Robert Raszuk , Keyur Patel , Stefano B. Previdi , David D. Ward
发明人： Mike Shand , Stewart F. Bryant , Gargi Nalawade , Robert Raszuk , Keyur Patel , Stefano B. Previdi , David D. Ward
IPC分类号： G01R31/08 , G06F11/00
CPC分类号： H04L45/22 , H04L45/04 , H04L45/28
摘要： An apparatus and method as described for constructing a repair path for use in the event of failure of an inter-routing domain connection between respective components in first and second routing domains of a data communications network. The apparatus is arranged to assign a propagatable repair address for use in the event of failure of the inter-routing domain connection and to propagate the repair address via data communications network components other than the inter-routing domain connection.
摘要翻译：描述的用于构建修复路径的装置和方法，用于在数据通信网络的第一和第二路由域中的各个组件之间的路由间域间连接发生故障的情况下使用。该装置被配置为分配可传播的修复地址，用于在路由间连接域连接失败的情况下使用，并且经由除了路由间连接之外的数据通信网络组件来传播修复地址。

9. 发明申请

US20080219153A1 Constructing a repair path in the event of failure of an inter-routing domain system link 有权
标题翻译：在路由间域网系统链路故障的情况下构建修复路径
公开(公告)号：US20080219153A1
公开(公告)日：2008-09-11
申请号：US11518405
申请日：2006-09-08
申请人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Keyur Patel , Stefano B. Previdi , Robert Raszuk
发明人： Mike Shand , Stewart F. Bryant , David D. Ward , Gargi Nalawade , Keyur Patel , Stefano B. Previdi , Robert Raszuk
IPC分类号： G01R31/08
CPC分类号： H04L45/22 , H04L45/04 , H04L45/28
摘要： An apparatus and method as described for constructing a repair path for use in the event of failure of an inter-routing domain connection between respective components in first and second routing domains of a data communications network. The apparatus is arranged to assign a propagatable repair address for use in the event of failure of the inter-routing domain connection and to propagate the repair address via data communications network components other than the inter-routing domain connection.
摘要翻译：描述的用于构建修复路径的装置和方法，用于在数据通信网络的第一和第二路由域中的各个组件之间的路由间域间连接发生故障的情况下使用。该装置被配置为分配可传播的修复地址，用于在路由间连接域连接失败的情况下使用，并且经由除了路由间连接之外的数据通信网络组件来传播修复地址。

10. 发明申请

US20070091794A1 Method of constructing a backup path in an autonomous system 审中-公开
标题翻译：在自治系统中构建备份路径的方法
公开(公告)号：US20070091794A1
公开(公告)日：2007-04-26
申请号：US11254469
申请日：2005-10-20
申请人： Clarence Filsfils , Stewart Bryant , David Ward , John Scudder , Stefano Previdi , Ian Charles Shand , Gargi Nalawade
发明人： Clarence Filsfils , Stewart Bryant , David Ward , John Scudder , Stefano Previdi , Ian Charles Shand , Gargi Nalawade
IPC分类号： H04J3/14 , H04L12/56
CPC分类号： H04L45/22 , H04L12/66 , H04L45/04 , H04L45/28 , H04L45/50
摘要： A method of constructing a backup path in an autonomous system (AS) for failure of a first inter-AS link serving a first set of prefixes is described. The method comprises identifying an alternate inter-AS link serving said plurality of prefixes and constructing a tunnel thereto.
摘要翻译：描述了在自治系统（AS）中构建用于服务于第一组前缀的第一AS间链路故障的备用路径的方法。该方法包括：识别服务于所述多个前缀的替代的AS间链路，并构建一个隧道。

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