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公开(公告)号：US08854953B2
公开(公告)日：2014-10-07
申请号：US13453875
申请日：2012-04-23
IPC分类号： H04L12/735
CPC分类号： H04L45/128
摘要： A method is described to be implemented by a node in a network. The method is for selecting an endpoint for a maximally redundant tree-fast reroute (MRT-FRR) detour path to optimize detour path cost or length across the network. The method defines a set of steps including selecting a destination node and next hop failure to calculate detour paths. A clean set of nodes for the network is then calculated, where the clean set of nodes are nodes in the network that are not impacted in reaching the destination node by the failure in the given next hop. A candidate node for the endpoint of the detour p path is selected from the set of clean nodes based on any one of a plurality of configured options and forwarding of data packets is configured to the selected candidate as the endpoint of the detour path to the destination node.
摘要翻译： 描述了一种由网络中的节点实现的方法。 该方法用于选择用于最大冗余树快速重路由（MRT-FRR）迂回路径的端点，以优化跨越网络的迂回路径成本或长度。 该方法定义了一组步骤，包括选择目的地节点和下一跳失败以计算迂回路径。 然后计算一组用于网络的干净的节点，其中，清洁的节点集合是网络中由于给定下一跳中的故障而不到达目的地节点的节点。 基于多个配置选项中的任何一个从干净节点的集合中选择迂回路径的端点的候选节点，并且将数据分组的转发配置为所选候选作为到达目的地的迂回路径的端点 节点。
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公开(公告)号：US20130077475A1
公开(公告)日：2013-03-28
申请号：US13453875
申请日：2012-04-23
IPC分类号： G06F11/00
CPC分类号： H04L45/128
摘要： A method is described to be implemented by a node in a network. The method is for selecting an endpoint for a maximally redundant tree-fast reroute (MRT-FRR) detour path to optimize detour path cost or length across the network. The method defines a set of steps including selecting a destination node and next hop failure to calculate detour paths. A clean set of nodes for the network is then calculated, where the clean set of nodes are nodes in the network that are not impacted in reaching the destination node by the failure in the given next hop. A candidate node for the endpoint of the detour p path is selected from the set of clean nodes based on any one of a plurality of configured options and forwarding of data packets is configured to the selected candidate as the endpoint of the detour path to the destination node.
摘要翻译： 描述了一种由网络中的节点实现的方法。 该方法用于选择用于最大冗余树快速重路由（MRT-FRR）迂回路径的端点，以优化跨越网络的迂回路径成本或长度。 该方法定义了一组步骤，包括选择目的地节点和下一跳失败以计算迂回路径。 然后计算一组用于网络的干净的节点，其中，清洁的节点集合是网络中由于给定下一跳中的故障而不到达目的地节点的节点。 基于多个配置选项中的任何一个从干净节点的集合中选择迂回路径的端点的候选节点，并且将数据分组的转发配置为所选候选作为到达目的地的迂回路径的端点 节点。
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3.发明授权公开(公告)号：US08913482B2
公开(公告)日：2014-12-16
申请号：US13486651
申请日：2012-06-01
IPC分类号： H04L12/56 , H04L12/707 , H04L12/761
摘要： An upstream activation mechanism provides enhancements to PIM-SM based fast re-route in a multicast communication network, where secondary paths provides redundancy to a multicast tree and are on standby to reduce bandwidth usage when there is no failure in the network. Upon receiving an indication of a loss of connection to the primary path of the multicast tree network, a network node that has a failure-free secondary path to a common source node of the multicast tree sends an activation packet upstream toward the common source node via the failure-free secondary path. The activation packet causes one or more upstream nodes to unblock their respective outgoing interfaces to thereby activate transmission of the multicast data traffic on the failure-free secondary path.
摘要翻译： 上游激活机制提供了对组播通信网络中基于PIM-SM的快速重路由的增强功能，其中辅助路径为组播树提供冗余，并且在不存在网络故障时待机以减少带宽使用。 在接收到与多播树网络的主路径的连接丢失的指示时，具有到多播树的公共源节点的无故障次要路径的网络节点经由 无故障次要路径。 激活分组使得一个或多个上游节点解除其各自的输出接口的阻塞，从而激活无故障次要路径上的多播数据业务的传输。
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公开(公告)号：US08842522B2
公开(公告)日：2014-09-23
申请号：US13453876
申请日：2012-04-23
IPC分类号： H04L12/70 , H04L12/735 , H04L12/753
CPC分类号： H04L45/128 , H04L45/48
摘要： A method supports incremental deployment of maximally redundant trees-fast reroute (MRT-FRR) by supporting MRT-FRR within an island of nodes in the network. A destination node and next hop failure selected to calculate detour paths. The clean set of nodes is calculated. The clean set of nodes is expanded with extended island candidate nodes that are reachable by a border node within the island via shortest path first (SPF) to the destination node that does not pass through the failed next hop. The extended island candidate nodes that are reachable by the border node within the island via SPF are part of an extended island. An MRT is calculated for each extended island candidate node. A candidate node is selected from the clean set of nodes according to a configured optimization option to serve as the endpoint of detour path to a destination node.
摘要翻译： 一种方法通过在网络中的一个节点岛内支持MRT-FRR来支持最大限度地冗余的树快速重路由（MRT-FRR）的增量部署。 选择目的地节点和下一跳失败来计算迂回路径。 计算干净的节点集。 通过最短路径优先（SPF）到岛内的边界节点可达到的扩展岛候选节点扩展到不通过故障下一跳的目的地节点的干净的节点集。 通过SPF可以通过岛内边界节点到达的扩展岛候选节点是扩展岛的一部分。 为每个扩展岛候选节点计算MRT。 根据配置的优化选项从干净的节点集中选择候选节点，以用作到目的地节点的迂回路径的端点。
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5.发明申请公开(公告)号：US20130322231A1
公开(公告)日：2013-12-05
申请号：US13486472
申请日：2012-06-01
IPC分类号： H04L12/26
CPC分类号： H04L45/16
摘要： A failure detection mechanism provides enhancements to PIM-SM based fast re-route techniques. A network node upon detecting a loss of connection determines whether it can re-route multicast data traffic. If the network node does not have a failure-free secondary path, it can originate a notification packet and send it to the downstream parts of a multicast tree. The notification packet can trigger one or more downstream nodes to switch-over to redundant secondary paths to re-route the multicast data traffic.
摘要翻译： 故障检测机制提供了基于PIM-SM的快速重路由技术的增强功能。 检测到连接丢失时的网络节点确定是否可以重新路由组播数据业务。 如果网络节点没有无故障的次要路径，则可以发起通知包并将其发送到组播树的下游部分。 通知包可以触发一个或多个下游节点切换到冗余辅助路径，以重新路由组播数据流量。
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公开(公告)号：US20130077476A1
公开(公告)日：2013-03-28
申请号：US13453876
申请日：2012-04-23
IPC分类号： G06F11/00
CPC分类号： H04L45/128 , H04L45/48
摘要： A method supports incremental deployment of maximally redundant trees-fast reroute (MRT-FRR) by supporting MRT-FRR within an island of nodes in the network. A destination node and next hop failure selected to calculate detour paths. The clean set of nodes is calculated. The clean set of nodes is expanded with extended island candidate nodes that are reachable by a border node within the island via shortest path first (SPF) to the destination node that does not pass through the failed next hop. The extended island candidate nodes that are reachable by the border node within the island via SPF are part of an extended island. An MRT is calculated for each extended island candidate node. A candidate node is selected from the clean set of nodes according to a configured optimization option to serve as the endpoint of detour path to a destination node.
摘要翻译： 一种方法通过在网络中的一个节点岛内支持MRT-FRR来支持最大限度地冗余的树快速重路由（MRT-FRR）的增量部署。 选择目的地节点和下一跳失败来计算迂回路径。 计算干净的节点集。 通过最短路径优先（SPF）到岛内的边界节点可达到的扩展岛候选节点扩展到不通过故障下一跳的目的地节点的干净的一组节点。 通过SPF可以通过岛内边界节点到达的扩展岛候选节点是扩展岛的一部分。 为每个扩展岛候选节点计算MRT。 根据配置的优化选项从干净的节点集中选择候选节点，以用作到目的地节点的迂回路径的端点。
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7.发明授权公开(公告)号：US08638659B2
公开(公告)日：2014-01-28
申请号：US13486472
申请日：2012-06-01
IPC分类号： H04L1/00 , G06F15/173
CPC分类号： H04L45/16
摘要： A failure detection mechanism provides enhancements to PIM-SM based fast re-route techniques. A network node upon detecting a loss of connection determines whether it can re-route multicast data traffic. If the network node does not have a failure-free secondary path, it can originate a notification packet and send it to the downstream parts of a multicast tree. The notification packet can trigger one or more downstream nodes to switch-over to redundant secondary paths to re-route the multicast data traffic.
摘要翻译： 故障检测机制提供了基于PIM-SM的快速重路由技术的增强功能。 检测到连接丢失时的网络节点确定是否可以重新路由组播数据业务。 如果网络节点没有无故障的次要路径，则可以发起通知包并将其发送到组播树的下游部分。 通知包可以触发一个或多个下游节点切换到冗余辅助路径，以重新路由组播数据流量。
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公开(公告)号：US20130322232A1
公开(公告)日：2013-12-05
申请号：US13486651
申请日：2012-06-01
IPC分类号： H04L12/26
摘要： An upstream activation mechanism provides enhancements to PIM-SM based fast re-route in a multicast communication network, where secondary paths provides redundancy to a multicast tree and are on standby to reduce bandwidth usage when there is no failure in the network. Upon receiving an indication of a loss of connection to the primary path of the multicast tree network, a network node that has a failure-free secondary path to a common source node of the multicast tree sends an activation packet upstream toward the common source node via the failure-free secondary path. The activation packet causes one or more upstream nodes to unblock their respective outgoing interfaces to thereby activate transmission of the multicast data traffic on the failure-free secondary path.
摘要翻译： 上游激活机制提供了对组播通信网络中基于PIM-SM的快速重路由的增强功能，其中辅助路径为组播树提供冗余，并且在不存在网络故障时待机以减少带宽使用。 在接收到与多播树网络的主路径的连接丢失的指示时，具有到多播树的公共源节点的无故障次要路径的网络节点经由 无故障次要路径。 激活分组使得一个或多个上游节点解除其各自的输出接口的阻塞，从而激活无故障次要路径上的多播数据业务的传输。
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9.发明授权Method and apparatuses for allowing a nomadic terminal to access a home network on layer 2 level 有权用于允许游牧终端在层2级访问家庭网络的方法和装置公开(公告)号：US09225548B2
公开(公告)日：2015-12-29
申请号：US12676663
申请日：2007-09-07
申请人： András Császár , János Harmatos , Attila Mihaly , Oktavian Papp , Lars Westberg
发明人： András Császár , János Harmatos , Attila Mihaly , Oktavian Papp , Lars Westberg
CPC分类号： H04L12/4641 , H04L12/4633
摘要： A method of allowing a nomadic terminal to access a home network on the Layer 2 level. The method comprises connecting said terminal to a remote access network via an access point, the remote access network being connected to an operator's backbone network via a remote access router. Signalling is exchanged between the access point and an authentication server within the backbone network in order to authenticate the terminal to the authentication server and, following successful authentication, a Layer 2 tunnel extending across the backbone network is established for the purpose of connecting said nomadic terminal to the home network.
摘要翻译： 允许游牧终端访问第2层级的家庭网络的方法。 该方法包括经由接入点将所述终端连接到远程接入网络，所述远程接入网络经由远程接入路由器连接到运营商的骨干网络。 在接入点和骨干网内的认证服务器之间交换信令，以便向认证服务器认证终端，并且在成功认证之后，建立跨越骨干网的两层隧道，用于连接所述游牧终端 到家庭网络。
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公开(公告)号：US09003467B2
公开(公告)日：2015-04-07
申请号：US13123412
申请日：2009-10-08
申请人： Ayodele Damola , András Császár , Ákos Kiss , Attila Körösi , Csaba Lukovszki , Balázs Székely
发明人： Ayodele Damola , András Császár , Ákos Kiss , Attila Körösi , Csaba Lukovszki , Balázs Székely
CPC分类号： H04N7/165 , H04N21/2402 , H04N21/632
摘要： The present invention relates to a method for controlling downloading of video segments or segmented video stream to a subscriber client unit, and a subscriber client unit adapted to perform said method. One object of the invention is to guarantee seamless playback and the optimal server load. Said object is by a method and a subscriber client unit that is controlled by a segment selector (SSA) and a server bandwidth control (SBC) algorithm.
摘要翻译： 本发明涉及一种用于控制视频段或分段视频流下载到用户客户单元的方法，以及适用于执行所述方法的订户客户单元。 本发明的一个目的是保证无缝播放和最佳的服务器负载。 所述目的是通过由段选择器（SSA）和服务器带宽控制（SBC）算法控制的方法和用户客户端单元。
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