公开(公告)号：US09203732B2

公开(公告)日：2015-12-01

申请号：US13496597

申请日：2009-10-01

申请人： Raoul Fiorone ,  Andrea Corti ,  Riccardo Martinotti

发明人： Raoul Fiorone ,  Andrea Corti ,  Riccardo Martinotti

IPC分类号： H04L12/26 ,  H04L12/701 ,  H04L12/707 ,  H04L12/703 ,  H04L12/723

CPC分类号： H04L45/00 ,  H04L43/0811 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

摘要： A connection-oriented network (5) has a plurality of connections terminated at a first node (N6). A recovery group (A) is configured at the first node (N6) comprising at least two of the plurality of connections (LSP1-6, LSP2-6, LSP3-6, LSP4-6). Fault detection is performed over each of the connections in the recovery group (A) and the node determines if at least one recovery group fault condition is met, based on the results of the fault detections performed over the connections in the recovery-group (A). When the at least one recovery group fault condition is met, the node causes traffic on the plurality of connections in the recovery group (A) to be transferred to backup paths. When the at least one recovery group fault condition is not met, and a fault has been detected on a connection in the recovery group (A), the node causes traffic to be transferred from that connection to a backup path.

摘要翻译： 面向连接的网络（5）具有终止于第一节点（N6）的多个连接。 在包括多个连接（LSP1-6，LSP2-6，LSP3-6，LSP4-6）中的至少两个的第一节点（N6）处配置恢复组（A）。 基于在恢复组（A）中的连接执行的故障检测的结果，在恢复组（A）中的每个连接上执行故障检测，并且节点确定是否满足至少一个恢复组故障条件 ）。 当满足至少一个恢复组故障条件时，该节点导致恢复组（A）中的多个连接上的流量被传送到备份路径。 当不满足至少一个恢复组故障条件，并且在恢复组（A）中的连接上检测到故障时，节点将使流量从该连接传输到备份路径。

公开(公告)号：US08787150B2

公开(公告)日：2014-07-22

申请号：US12443708

申请日：2006-10-09

申请人： Raoul Fiorone ,  Riccardo Martinotti ,  Andrea Corti

发明人： Raoul Fiorone ,  Riccardo Martinotti ,  Andrea Corti

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  G06F15/173

CPC分类号： H04B1/0458 ,  H04B1/18 ,  H04L12/4633 ,  H04L41/06 ,  H04L43/0811 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L47/70

摘要： A connection oriented communications network has a plurality of nodes including a plurality of edge nodes. The network is arranged to define a primary tunnel connecting a primary one of the edge nodes to another edge node and a secondary tunnel connecting a secondary one of the edge nodes to another edge node. The network is arranged to enable switching of traffic from the primary tunnel to the secondary tunnel in the event of detection of a failure in the primary tunnel.

摘要翻译： 面向连接的通信网络具有包括多个边缘节点的多个节点。 网络被配置为定义将主要边缘节点连接到另一边缘节点的主隧道，以及将边缘节点中的辅助边缘节点连接到另一个边缘节点的辅助隧道。 网络被安排为在检测到主隧道故障的情况下，能够从主隧道到二级隧道的流量切换。

公开(公告)号：US20100002578A1

公开(公告)日：2010-01-07

申请号：US12443708

申请日：2006-10-09

申请人： Raoul Fiorone ,  Riccardo Martinotti ,  Andrea Corti

发明人： Raoul Fiorone ,  Riccardo Martinotti ,  Andrea Corti

IPC分类号： G06F11/00

CPC分类号： H04B1/0458 ,  H04B1/18 ,  H04L12/4633 ,  H04L41/06 ,  H04L43/0811 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L47/70

摘要： A connection oriented communications network 10 comprises a plurality of nodes including a plurality of edge nodes 12, 14, 16, 18. The network is arranged to define a primary tunnel connecting a primary one 12, 14 of the edge nodes to another edge node 14, 12 and a secondary tunnel connecting a secondary one 16, 18 of the edge nodes to another edge node 12, 14, 16, 18. The network is arranged to enable switching of traffic from the primary tunnel to the secondary tunnel in the event of detection of a failure in the primary tunnel.

摘要翻译： 面向连接的通信网络10包括包括多个边缘节点12,14,16,18的多个节点。网络被配置为定义连接边缘节点的主节点12,14与另一边缘节点14的主隧道 ，12和将第二个16,18的边缘节点连接到另一个边缘节点12,16,18,18的辅助隧道。网络被配置为在事件中能够从主隧道到次要隧道的业务交换 检测主隧道故障。

公开(公告)号：US20090010154A1

公开(公告)日：2009-01-08

申请号：US11965828

申请日：2007-12-28

申请人： Riccardo Martinotti ,  Andrea Corti ,  Raoul Fiorone

发明人： Riccardo Martinotti ,  Andrea Corti ,  Raoul Fiorone

IPC分类号： H04L12/24

CPC分类号： H04L45/24 ,  H04L12/1877 ,  H04L45/02 ,  H04L45/28 ,  H04Q11/0062 ,  H04Q2011/0081 ,  H04Q2011/0092

摘要： A protection scheme for a metro optical network involves programming ingress nodes and egress nodes with a primary multicast label switched path (LSP) and a back-up LSP to provide one-to-one protection. The primary and back-up LSPs are configured prior to the occurrence of a network fault to allow the network to transmit multicast communication when the fault occurs. Particularly, multicast communications are sent on the primary LSP during normal operation. However, when a network fault occurs, the nodes also send a duplicate multicast communication over the back-up LSP. Configuring the primary and back-up LSPs prior to the fault occurring avoids the need for signalling to establish a working LSP after a fault occurs.

摘要翻译： 用于城域光网络的保护方案涉及使用主要组播标签交换路径（LSP）和备用LSP对入口节点和出口节点进行编程，以提供一对一保护。 在发生网络故障之前配置主备份LSP和备份LSP，以允许网络在故障发生时传输组播通信。 特别地，在正常操作期间，在主LSP上发送组播通信。 但是，当发生网络故障时，节点也通过备份LSP发送重复的组播通信。 在发生故障之前配置主备份和备份LSP避免了在发生故障后建立LSP的信令。

公开(公告)号：US07929545B2

公开(公告)日：2011-04-19

申请号：US12066980

申请日：2006-08-24

申请人： Riccardo Martinotti ,  Andrea Corti ,  Raoul Fiorone

发明人： Riccardo Martinotti ,  Andrea Corti ,  Raoul Fiorone

IPC分类号： H04L12/28 ,  H04L12/66

CPC分类号： H04L12/462 ,  H04L12/4625 ,  H04L45/02

摘要： Network interconnection apparatus comprising a platform with interface ports for network interconnection and comprising in turn a first series and a second series of interface port cards and an interconnection unit for commanded interconnection at least between the cards of the first and second series and between cards of the first series. The cards of the first series have their own associated MAC address tables for addressing traffic between ports through the interconnection unit. Each entry of the table has an age field defining in time the age of the entry. The content of the age field is periodically verified and if it reaches a preset maximum figure the entry is updated on the basis of the content of the age field by a corresponding entry in the table of another card of the first series and associated therewith by the information in the entry to be updated. If the content of the age field of the corresponding entry is also a maximum figure, both the entries can be deleted.

摘要翻译： 网络互连设备包括具有用于网络互连的接口端口的平台，并且还包括第一系列和第二系列接口端口卡和用于至少在第一和第二串联的卡之间以及在第一和第二系列之间的指令互连的互连单元 第一系列 第一系列的卡具有它们自己的相关MAC地址表，用于通过互连单元寻址端口之间的通信。 表的每个条目都有一个时间字段，用于定义入口年龄的时间。 定期验证年龄字段的内容，如果达到预设的最大数字，则根据年龄段的内容，通过第一系列的另一个卡的表中的相应条目更新条目，并通过 要更新的条目中的信息。 如果相应条目的age字段的内容也是最大值，则可以删除这两个条目。

公开(公告)号：US20080298243A1

公开(公告)日：2008-12-04

申请号：US12094920

申请日：2006-11-23

申请人： Riccardo Martinotti ,  Andrea Corti ,  Raoul Fiorone

发明人： Riccardo Martinotti ,  Andrea Corti ,  Raoul Fiorone

IPC分类号： H04J1/16

CPC分类号： H04L47/20 ,  H04L47/10 ,  H04L47/125

摘要： An apparatus and a method are described in which a flow of packets is distributed in several separate flows over several links (12) forming a logically aggregated link (11). The flow outgoing from each physical link is sent to its own policer (18) which applies to said flow a traffic policing algorithm with the policers being interconnected to exchange algorithm control parameter modification information to fit them in among the various policers while allowing for the control parameters of the others so that a distributed policer (15) is realized.

摘要翻译： 描述了一种装置和方法，其中分组流在几个形成逻辑聚合链路（11）的链路（12）上分布在几个单独的流中。 从每个物理链路传出的流量被发送到其自己的策略器（18），其向所述流量应用流量监管算法，其中策略器被互连以交换算法控制参数修改信息，以将它们适配在各种策略器之间，同时允许控制 参数，从而实现分布式策略器（15）。

公开(公告)号：US09391874B2

公开(公告)日：2016-07-12

申请号：US12992269

申请日：2008-07-08

申请人： Andrea Corti ,  Raoul Fiorone ,  Riccardo Martinotti

发明人： Andrea Corti ,  Raoul Fiorone ,  Riccardo Martinotti

IPC分类号： H04L12/707 ,  H04L12/751 ,  H04L12/703 ,  H04L12/753

CPC分类号： H04L45/22 ,  H04L45/02 ,  H04L45/28 ,  H04L45/48

摘要： Method of re-routing traffic in a communications network (1) in the event of a fault (3) on a path across the network, the method comprising, determining whether a first node (4), located between the fault and a network ingress node (6), is capable of switching traffic to an alternative path which avoids the fault, and if the first node is determined to be not so capable, then determining whether a second node (8), located upstream of the first node, is capable of switching traffic to an alternative path which avoids the fault.

摘要翻译： 在通过网络的路径上发生故障（3）的情况下在通信网络（1）中重新路由业务的方法，所述方法包括：确定位于故障之间的第一节点（4）和网络入口 节点（6）能够将流量切换到避免故障的替代路径，并且如果确定第一节点不太可行，则确定位于第一节点上游的第二节点（8）是否为 能够将流量切换到避免故障的替代路径。

公开(公告)号：US20120287818A1

公开(公告)日：2012-11-15

申请号：US13502065

申请日：2009-10-20

申请人： Andrea Corti ,  Raoul Fiorone ,  Riccardo Martinotti

发明人： Andrea Corti ,  Raoul Fiorone ,  Riccardo Martinotti

IPC分类号： H04L12/28

CPC分类号： H04L45/16 ,  H04L45/04 ,  H04L45/50 ,  H04L45/68

摘要： A multipoint-to-multipoint service is provided between a set of edge nodes of a communications network. The network comprises at least two sub-networks and an intermediate node at a boundary between sub-networks. For each pair of edge nodes comprising an edge node in a first of the sub-networks and an edge node in a second of the sub-networks, a multi-segment pseudowire connection is configured between the pair of edge nodes. The pseudowire connection passing via at least one intermediate node. At the intermediate node forwarding data is configured which specifies a forwarding relationship between pseudowire segments corresponding to the multi-segment pseudowire connections. A topology of Label Switched Paths carry the multi-segment pseudowires. Edge nodes within a sub-network can be connected with a mesh topology or a hub-and-spoke topology.

摘要翻译： 在通信网络的一组边缘节点之间提供多点对多点服务。 该网络包括至少两个子网络和在子网络之间的边界处的中间节点。 对于包括第一子网中的边缘节点和第二子网中的边缘节点的每对边缘节点，在所述一对边缘节点之间配置多段伪线连接。 通过至少一个中间节点的伪线连接。 在中间节点处，配置转发数据，其指定与多段伪线连接相对应的伪线段之间的转发关系。 标签交换路径的拓扑携带多段伪线。 子网络中的边缘节点可以与网状拓扑或中心辐射拓扑结合。

公开(公告)号：US09426062B2

公开(公告)日：2016-08-23

申请号：US13512199

申请日：2010-01-15

申请人： Raoul Fiorone ,  Riccardo Martinotti ,  Andrea Corti

发明人： Raoul Fiorone ,  Riccardo Martinotti ,  Andrea Corti

IPC分类号： H04L12/437 ,  H04L12/723 ,  H04L12/26 ,  H04L12/701 ,  H04L12/751 ,  H04L12/707 ,  H04L12/703 ,  H04L12/24

CPC分类号： H04L45/50 ,  H04L12/437 ,  H04L41/0654 ,  H04L43/0817 ,  H04L45/00 ,  H04L45/10 ,  H04L45/22 ,  H04L45/28

摘要： The invention relates to a method of fault monitoring in a fault monitoring entity of a network node of a network having at least a first connection-oriented network layer, having first protection measures associated therewith, and a second connection-oriented network layer, having second protection measures associated therewith. In a first step the service condition status of the first network layer is monitored using the first protection measures. In a second step the second network layer protection measures are determined for onward transmission within the second network layer depending on the service condition status of the first network layer. Since the network node is aware of the monitored status condition of both the first and second layers the protection mechanisms for the first network layer and the second network layer can be co-ordinated and the second network layer protection measure for onward transmission may be determined for optimum network fault protection operation.

摘要翻译： 本发明涉及一种在具有至少第一面向连接的网络层的网络节点的故障监控实体中的故障监控方法，所述网络层具有与之相关联的第一保护措施，以及具有第二连接的网络层 与之相关的保护措施。 在第一步中，使用第一保护措施监视第一网络层的服务条件状态。 在第二步骤中，根据第一网络层的服务条件状态，确定第二网络层内的向前传输的第二网络层保护措施。 由于网络节点知道第一和第二层的受监视状态条件，所以可以协调第一网络层和第二网络层的保护机制，并且可以确定用于向前传输的第二网络层保护措施 最佳网络故障保护操作。

公开(公告)号：US08750111B2

公开(公告)日：2014-06-10

申请号：US12094924

申请日：2006-11-23

申请人： Riccardo Martinotti ,  Raoul Fiorone ,  Andrea Corti

发明人： Riccardo Martinotti ,  Raoul Fiorone ,  Andrea Corti

IPC分类号： H04L12/26

CPC分类号： H04L47/20 ,  H04L47/10 ,  H04L47/125 ,  H04L47/32

摘要： A method and a transport scheme for packets of traffic over a logical link made up of the aggregation of several physical links (16) connecting a transmitting side to a receiving side in which flows of incoming packets are sent to a scheduler/shaper (12) which selects therefrom packets for creating a global flow of packets falling within the bandwidth offered by the logical link on the basis of the bandwidth capability offered by the logical link. A distributor (13) distributes the global flow over the plurality of physical links (16) making up the logical link, oversees the physical links and sends to the scheduler/shaper signalling of a bandwidth decrease caused by failures of one or more physical links. The scheduler/shaper (12) is arranged to allow automatically for the logical link bandwidth variations while selecting the packets from the various incoming queues depending on the associated service class so as to cause the global flow to fall within the aggregated logical link bandwidth. This involves more queuing of packets and their possible drop according to the queue management criteria implemented, in the queues associated with the lowest service class.

摘要翻译： 一种由通过将发送侧连接到接收侧的多个物理链路（16）的聚合组成的逻辑链路的数据包的方法和传输方案，其中将传入分组的流发送到调度器/整形器（12） 其从其中选择用于基于由逻辑链路提供的带宽能力创建落入由逻辑链路提供的带宽内的分组的全局流的分组。 分配器（13）将构成逻辑链路的多个物理链路（16）上的全局流分配到物理链路，监视物理链路，并向调度器/整形器发送由一个或多个物理链路的故障导致的带宽减少的信令。 调度器/整形器（12）被布置成在根据相关联的服务类别选择来自各种传入队列的分组时自动允许逻辑链路带宽变化，从而使全局流落入聚合的逻辑链路带宽内。 这涉及到与最低服务类相关联的队列中根据实现的队列管理标准来更多地排队数据包及其可能的丢弃。