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61. 发明授权

US08606961B2 Method and apparatus for link-state handshake for loop prevention 有权
标题翻译：用于环路预防的链路状态握手的方法和装置
公开(公告)号：US08606961B2
公开(公告)日：2013-12-10
申请号：US12922235
申请日：2009-03-10
申请人： János Farkas
发明人： János Farkas
IPC分类号： G06F15/173 , H04L12/28
CPC分类号： H04L45/14 , H04L45/00 , H04L45/02 , H04L45/021 , H04L45/023 , H04L45/123 , H04L45/18
摘要： A network node of a telecommunications network controlled by a link-state protocol includes a network interface which receives a message that contains information on a change in topology of the network. The node includes a processing unit that blocks forwarding of traffic to at least one neighbor node of the network at the network interface, agrees on the change in topology with the neighbor node; and unblocks the forwarding of traffic when the neighbor node has information about the topology which is the same as the information about the topology in a memory. A transient loop prevention method of a network node of a network having a plurality of a network nodes controlled by a link-state protocol includes the steps of receiving a message at a network interface which contains information on a change in topology of the network. There is the step of blocking forwarding of traffic to each neighbor node of the network at the network interface by a processing unit. There is the step of agreeing by the processing unit on the change in topology with the neighbor node. There is the step of unblocking the forwarding of traffic when the neighbor node has information about the topology which is the same as the information about the topology stored in a memory.
摘要翻译：由链路状态协议控制的电信网络的网络节点包括接收包含关于网络拓扑变化的信息的消息的网络接口。该节点包括一个处理单元，其阻止在网络接口处向网络的至少一个相邻节点转发流量，与邻居节点的拓扑变化一致; 并且当相邻节点具有关于与存储器中的拓扑的信息相同的拓扑的信息时，解除阻塞流量的转发。具有由链路状态协议控制的多个网络节点的网络的网络节点的暂态环路预防方法包括以下步骤：在包含关于网络拓扑变化的信息的网络接口处接收消息。通过处理单元在网络接口处阻塞流量到网络的每个邻居节点的步骤。处理单元同邻近节点拓扑变化的步骤。当邻居节点具有关于与存储在存储器中的拓扑的信息相同的拓扑的信息时，解除阻塞流量的转发的步骤。

62. 发明申请

US20130201909A1 MOBILE NODE HOST ROUTE INSTALLATION AND WITHDRAWAL 有权
标题翻译：移动节点主机路由安装和撤销
公开(公告)号：US20130201909A1
公开(公告)日：2013-08-08
申请号：US13536740
申请日：2012-06-28
申请人： Hendrikus G.P. Bosch , Martin Djernaes
发明人： Hendrikus G.P. Bosch , Martin Djernaes
IPC分类号： H04W40/34
CPC分类号： H04W40/34 , H04L12/4641 , H04L45/02 , H04L45/023 , H04L45/64 , H04L61/2007 , H04W40/248 , H04W40/36 , H04W84/12 , H04W88/06
摘要： In general, techniques are described for atomically installing and withdrawing host routes along paths connecting network routers to attenuate packet loss for mobile nodes migrating among wireless LAN access networks and a mobile network. In some examples, whenever the mobile node moves from one attachment point to the next, it triggers the distribution of its host route from the new attachment point toward the service provider network hub provider edge (PE) router that anchors the mobile node on a service provider network. Routers participating in the Mobile VPN install the host route “atomically” from the attachment point to the mobile gateway so as to ensure convergence of the network forwarding plane with the host route toward the new attachment point prior to transitioning mobile node connectivity from a previous attachment point.
摘要翻译：一般来说，描述了沿着连接网络路由器的路径原子安装和撤回主机路由以衰减在无线LAN接入网络和移动网络之间迁移的移动节点的分组丢失的技术。在一些示例中，每当移动节点从一个附接点移动到下一个连接点时，它触发其主机路由从新附接点向服务提供商网络中心提供商边缘（PE）路由器的分配，该路由器将移动节点锚定在服务上提供商网络。参与移动VPN的路由器将主机路由从附件点“原始地”安装到移动网关，以便在从先前的附件转移移动节点连接之前，确保网络转发平面与主机路由向新连接点的融合点。

63. 发明授权

US08498292B2 Network node and method for establishing network path and sending data 有权
标题翻译：用于建立网络路径和发送数据的网络节点和方法
公开(公告)号：US08498292B2
公开(公告)日：2013-07-30
申请号：US12887079
申请日：2010-09-21
申请人： Yuan Zhou , Wei Zhang , Danfeng Feng
发明人： Yuan Zhou , Wei Zhang , Danfeng Feng
IPC分类号： H04L12/28
CPC分类号： H04W40/22 , H04L45/023 , H04W40/26
摘要： The disclosure relates to the mesh network technology, and in particular, to a network node and a method for establishing a path and transmitting data. A method for establishing a network path is provided in an embodiment of the present invention. The method includes: receiving a gateway notification forwarded by a node with a trunk path and setting up a routing request timer; sending a routing request that contains information about whether a path is the trunk path after the routing request timer times out; receiving a route reply that is generated by the gateway after receiving the routing request from the gateway through the trunk path. In addition, a network node for implementing the method is provided in an embodiment of the present invention.
摘要翻译：本公开涉及网状网络技术，特别涉及一种网络节点和用于建立路径和传输数据的方法。在本发明的实施例中提供了一种用于建立网络路径的方法。该方法包括：接收由具有中继线路径的节点转发的网关通知，并建立路由请求定时器; 在路由请求定时器超时后，发送路由请求，其中包含有关路径是否为中继路径的信息; 在通过中继线路径从网关接收到路由请求之后，接收由网关生成的路由应答。此外，在本发明的实施例中提供了用于实现该方法的网络节点。

64. 发明授权

US08451750B2 Validation of routes advertised by border gateway protocol 有权
标题翻译：验证边界网关协议发布的路由
公开(公告)号：US08451750B2
公开(公告)日：2013-05-28
申请号：US12243767
申请日：2008-10-01
申请人： David Delano Ward , Pradosh Mohapatra
发明人： David Delano Ward , Pradosh Mohapatra
IPC分类号： H04L3/14 , H04L12/56
CPC分类号： H04L45/04 , H04L45/02 , H04L45/021 , H04L45/023
摘要： Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with validation of routes advertised by Border Gateway Protocol. One embodiment validates or invalidates a route received in a Border Gateway Protocol (BGP) update message. A route is validated in response to determining that the originating autonomous system specified in the AS_Path attribute for the route in a received BGP update message has authority to advertise the route and/or whether or not multiple autonomous systems identified in the AS_Path attribute of the update message is authorized to advertise the route, possibly in a particular order.
摘要翻译：公开的方法，装置，计算机存储介质，机制和与边界网关协议通告的路由的验证相关联的装置。一个实施例验证或者使在边界网关协议（BGP）更新消息中接收的路由无效。响应于确定在接收到的BGP更新消息中的路由的AS_Path属性中指定的始发自治系统具有发布路由的权力和/或在更新的AS_Path属性中标识的多个自治系统是否被确认的路由消息被授权广告路由，可能以特定的顺序。

65. 发明申请

US20120320753A1 DYNAMIC REROUTE OF NETWORK TRAFFIC 有权
标题翻译：网络交通动态变化
公开(公告)号：US20120320753A1
公开(公告)日：2012-12-20
申请号：US13598350
申请日：2012-08-29
申请人： Jean-Philippe Marcel Vasseur , David Delano Ward , Stefano Benedetto Previdi
发明人： Jean-Philippe Marcel Vasseur , David Delano Ward , Stefano Benedetto Previdi
IPC分类号： H04L12/24
CPC分类号： H04L45/125 , H04L45/02 , H04L45/023 , H04L45/22 , H04L45/24 , H04L47/10 , H04L47/122
摘要： In an example embodiment, a method is provided that receives a broadcast of available bandwidth from a first routing device. A congestion of traffic is detected along a downstream path to a second routing device. This second routing device is an immediate downstream neighbor. As such, an alternate path is established to the second routing device by way of the first routing device based on the available bandwidth in the network and a portion of the traffic is transmitted along the alternate path.
摘要翻译：在示例实施例中，提供了一种从第一路由设备接收可用带宽的广播的方法。沿着到第二路由设备的下行路径检测到流量拥塞。该第二路由设备是即时下游邻居。因此，基于网络中的可用带宽，通过第一路由设备建立替代路径到第二路由设备，并且业务的一部分沿着备用路径被传输。

66. 发明申请

US20110255399A1 Network Nodes 有权
标题翻译：网络节点
公开(公告)号：US20110255399A1
公开(公告)日：2011-10-20
申请号：US13123223
申请日：2008-10-16
申请人： Yangcheng Huang , Daryl Parker
发明人： Yangcheng Huang , Daryl Parker
IPC分类号： H04W40/28 , H04L12/24
CPC分类号： H04W40/24 , H04L45/023 , H04L45/28 , H04W40/28 , H04W40/30
摘要： A network node comprising at least one network interface the network node arranged to form network links to other network nodes through the or each network interface, each network link being to a neighbouring one of the other network nodes, the network node arranged to determine whether data transmitted over the links to the relevant neighbouring network nodes is successfully received. Should the network node make a first determination that data sent over a given network link to a neighbouring node has not been successfully received, the network node temporarily disables the entry for that network link in a memory for a period of time, such that the network node does not send data to the neighbouring node over the given network link during the period of time, but then subsequently re-enables the entry after the period of time has elapsed. Should the network node make a subsequent determination that data sent over the given network link to the neighbouring network node has not been successfully received, the network node deletes the entry from the memory.
摘要翻译：一种网络节点，包括至少一个网络接口，所述网络节点被布置成通过所述网络接口或每个网络接口与其他网络节点形成网络链路，每个网络链路是相邻的其他网络节点，所述网络节点被布置成确定数据通过链接发送到相关的相邻网络节点被成功接收。如果网络节点首先确定通过给定网络链路发送到相邻节点的数据尚未被成功接收，则网络节点暂时禁用存储器中该网络链路的条目一段时间，使得网络节点在一段时间内不通过给定网络链路向相邻节点发送数据，但随后在该时间段过去之后重新启用该条目。如果网络节点做出随后确定通过给定网络链路发送到相邻网络节点的数据未被成功接收，则网络节点从存储器中删除该条目。

67. 发明申请

US20100054265A1 METHOD AND DEVICE OF MPLS NETWORK TRAFFIC SWITCHING 有权
标题翻译： MPLS网络交换业务的方法与设备
公开(公告)号：US20100054265A1
公开(公告)日：2010-03-04
申请号：US12617953
申请日：2009-11-13
申请人： Xin Lv , Zhenbin Li , Qingsong Xiao , Bing Wu , Guangdong Zhu
发明人： Xin Lv , Zhenbin Li , Qingsong Xiao , Bing Wu , Guangdong Zhu
IPC分类号： H04L12/28
CPC分类号： H04L45/50 , H04L45/02 , H04L45/023
摘要： A method of MPLS network traffic switching is provided herein. The method includes these steps: receiving a message indicative of creating a new LSP successfully, and generating a new uplink forwarding entry and a new downlink forwarding entry according to the message; storing the new uplink forwarding entry, and configuring the new downlink forwarding entry; configuring the new uplink forwarding entry upon completion of configuring the new downlink forwarding entry; and forwarding the traffic according to the new uplink forwarding entry and the new downlink forwarding entry. By ensuring the sequence of processing the events in the traffic switching process, the method reduces the probability of traffic interruption in the traffic switching process. A network node device for implementing MPLS network traffic switching is also provided herein.
摘要翻译：本文提供了MPLS网络流量切换的方法。该方法包括以下步骤：成功接收表示创建新LSP的消息，根据该消息生成新的上行转发表项和新的下行转发表项; 存储新的上行转发表项，配置新的下行转发表项; 配置新的下行转发表项后，配置新的上行转发表项; 并根据新的上行转发表项和新的下行转发表项转发流量。通过确保流量切换过程中处理事件的顺序，该方法降低了流量切换过程中流量中断的概率。本文还提供了一种用于实现MPLS网络流量交换的网络节点设备。

68. 发明授权

US07505402B2 Method and apparatus for providing faster convergence for redundant sites 有权
标题翻译：为冗余站点提供更快收敛的方法和装置
公开(公告)号：US07505402B2
公开(公告)日：2009-03-17
申请号：US11159719
申请日：2005-06-23
申请人： Clarence A. M. Filsfils , James N. Guichard , Robert Raszuk , Jean-Philippe Vasseur , Kris Michielsen , Peter De Vriendt
发明人： Clarence A. M. Filsfils , James N. Guichard , Robert Raszuk , Jean-Philippe Vasseur , Kris Michielsen , Peter De Vriendt
IPC分类号： G06F11/00 , G01R31/08 , H04L12/56
CPC分类号： H04L12/66 , H04L41/0668 , H04L45/02 , H04L45/023 , H04L45/04 , H04L45/22 , H04L45/24 , H04L45/28 , H04L45/36 , H04L45/58
摘要： A method, apparatus and computer program product for providing convergence for a dual-homed site in a network is presented. An occurrence of a failure between a first Provider Edge (PE) device and a first Customer Edge (CE) device in communication with a dual-homed site is detected. A determination is made whether an alternate route exists for the dual-homed site in a routing table associated with the first PE device. When an alternate route exists then a routing entry associated with the first CE device in a routing table of said first PE device is kept from being deleted for a predetermined amount of time, the routing table is modified to reference the alternate route, the routing entry is rewritten to perform a POP and lookup in a VRF table of the first PE device, and the routing entry is deleted after the predetermined amount of time has elapsed.
摘要翻译：提出了一种用于为网络中的双归位点提供融合的方法，装置和计算机程序产品。检测到与双归位置通信的第一提供商边缘（PE）设备和第一客户边缘（CE）设备之间的故障的发生。确定在与第一PE设备相关联的路由表中是否存在用于双归属站点的备用路由。当存在替代路由时，在所述第一PE设备的路由表中与第一CE设备相关联的路由条目不被删除预定的时间量，所述路由表被修改以引用所述替代路由，所述路由条目被重写以在第一PE设备的VRF表中执行POP和查找，并且在经过预定时间量之后删除路由条目。

69. 发明申请

US20080098127A1 Method and Network Element for Rerouting Traffic, While Maintaining the Quality of Service, in Networks with Slow Route Convergence 审中-公开
标题翻译：在路由收敛缓慢的网络中，维护服务质量，重新路由流量的方法和网络元素
公开(公告)号：US20080098127A1
公开(公告)日：2008-04-24
申请号：US11632903
申请日：2005-07-29
申请人： Thomas Engel
发明人： Thomas Engel
IPC分类号： G06F15/173
CPC分类号： H04L47/805 , H04L45/02 , H04L45/023 , H04L45/04 , H04L45/22 , H04L45/28 , H04L45/302 , H04L47/70 , H04L47/724 , H04L47/785 , H04L47/826
摘要： A route for routing traffic is established by the emission of a route announcing message to a network element of a network. The network element is then triggered in such a way as to route the traffic according to the route announced in a time-delayed manner by means of an event e.g. the emission of another message. A resource reservation for routing traffic along the announced route is carried out between the route announced and the event. In this way, it is ensured that the required resources are provided for the deviation of traffic onto the new route, and a route modification for traffic can be carried out without affecting the quality of service.
摘要翻译：用于路由业务的路由是通过向网络的网元发射路由通知消息而建立的。然后以这样的方式触发网络元件，以便根据以时间延迟的方式通过事件例如路由路由该业务。排放另一个消息。在宣布的路由与事件之间进行沿路由路由的资源预留。以这种方式，确保为业务偏离新路由提供所需的资源，并且可以在不影响业务质量的情况下进行业务的路由修改。

70. 发明申请

US20070121524A1 Method and apparatus providing prioritized recursion resolution of border gateway protocol forwarding information bases 有权
标题翻译：提供边界网关协议转发信息库优先递归解析的方法和装置
公开(公告)号：US20070121524A1
公开(公告)日：2007-05-31
申请号：US11291940
申请日：2005-11-30
申请人： Vijay Rangarajan , Clarence Filsfils , John Bettink
发明人： Vijay Rangarajan , Clarence Filsfils , John Bettink
IPC分类号： H04J1/16 , G06F15/173 , H04L12/26
CPC分类号： H04L47/6215 , H04L45/02 , H04L45/021 , H04L45/023 , H04L45/028 , H04L45/54 , H04L45/60 , H04L47/50
摘要： A method, performed in a network packet routing element, comprising establishing a forwarding information base (FIB) lacking a hierarchical data structure but wherein one or more dependent FIB entries are associated with a parent FIB entry; establishing a plurality of strict priority queues, wherein each of the queues has an associated priority; receiving a change to the parent FIB entry; for each of the dependent FIB entries, selecting one of the queues and enqueuing the dependent FIB entries in the selected queues for re-resolution; dequeuing the dependent FIB entries for re-resolution, according to a priority order of the queues.
摘要翻译：一种在网络分组路由选择单元中执行的方法，包括建立缺少分级数据结构的转发信息库（FIB），但是其中一个或多个从属FIB表项与父FIB表项相关联; 建立多个严格优先级队列，其中每个队列具有相关联的优先级; 接收对父FIB条目的更改; 对于每个依赖FIB条目，选择一个队列并对所选队列中的依赖FIB条目进行排队以进行重新分辨; 根据队列的优先级顺序对依赖FIB条目进行队列重新分辨。

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