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1. 发明申请

US20150163125A1 APPARATUS AND METHOD FOR COMPUTING END-TO-END PATHS THROUGH A NETWORK COMPRISING A PLURALITY OF NETWORK DOMAINS 审中-公开
标题翻译：通过包含多个网络域的网络计算端到端的设备和方法
公开(公告)号：US20150163125A1
公开(公告)日：2015-06-11
申请号：US14386151
申请日：2012-04-05
申请人： Diego Caviglia , Giulio Bottari , Daniele Ceccarelli
发明人： Diego Caviglia , Giulio Bottari , Daniele Ceccarelli
IPC分类号： H04L12/751 , H04L12/721 , H04L12/723
CPC分类号： H04L45/02 , H04L41/12 , H04L45/04 , H04L45/26 , H04L45/42 , H04L45/44 , H04L45/50
摘要： A network architecture is provided for enabling end-to-end paths to be computed across a plurality of network domains. The network architecture comprises a plurality of child path computation elements associated with a plurality of respective network domains, each child path computation element adapted to compute a path segment within its respective network domain. A parent path computation element adapted to compute an end-to-end path across a plurality of network domains in conjunction with the plurality of respective child path computation elements.
摘要翻译：提供了一种网络架构，用于跨多个网络域计算端到端路径。网络架构包括与多个相应网络域相关联的多个子路径计算元件，每个子路径计算元件适于计算其各自网络域内的路径段。父路径计算元件，适于结合多个相应的子路径计算元件计算跨多个网络域的端到端路径。

2. 发明申请

US20140328159A1 Recovery of Split Architecture Control Plane 审中-公开
标题翻译：拆分架构控制平面的恢复
公开(公告)号：US20140328159A1
公开(公告)日：2014-11-06
申请号：US14361368
申请日：2011-11-29
申请人： Paolo Rebella , Diego Caviglia , Daniele Ceccarelli
发明人： Paolo Rebella , Diego Caviglia , Daniele Ceccarelli
IPC分类号： H04L12/24
CPC分类号： H04L41/0672 , H04L41/0213 , H04L41/042 , H04L41/0654 , H04L41/0873 , H04L41/0893 , H04L45/28
摘要： A method of operating a control plane having a centralised network management system (10), control domain servers (20) and a plurality of forwarding elements (30), for controlling respective network entities (L2), and grouped into control domains (21, 22, 23). Each domain has a control domain server. Automatic checking for inconsistencies (110, 115, 210, 310, 320, 450) between the records held at the different parts of the control plane, involves comparing checklists of the records of the circuits stored at the different parts of the control plane. If an inconsistency is found, there is automatic updating (120, 220, 230, 460) of the records using a copy sent from another of the parts of the control plane. The checklists can avoid the need to forwarding entire copies.
摘要翻译：一种操作具有集中式网络管理系统（10），控制域服务器（20）和多个转发元件（30）的控制平面的方法，用于控制各个网络实体（L2），并分组成控制域 22,23）。每个域都有一个控制域服务器。在控制平面的不同部分之间记录的不一致（110,115,210,310,320,450）的自动检查涉及比较存储在控制平面的不同部分的电路记录的清单。如果发现不一致，则使用从控制平面的其他部分发送的副本自动更新记录（120,220,230,460）。检查单可以避免转发整个副本的需要。

3. 发明授权

US08850014B2 Handling failure of request message during set up of label switched path 有权
标题翻译：在设置标签交换路径时处理请求消息的故障
公开(公告)号：US08850014B2
公开(公告)日：2014-09-30
申请号：US12994318
申请日：2010-06-14
申请人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
发明人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
IPC分类号： G06F15/173 , H04L29/06 , H04L12/913 , H04L12/723 , H04L12/701 , H04L12/54 , H04L12/911
CPC分类号： H04L47/724 , H04L12/5691 , H04L45/00 , H04L45/50 , H04L47/825 , H04L69/14
摘要： Setting up a label switched path (LSP) for traffic between nodes of a network, involves sending a request message requesting reservation of resources for the requested LSP, from an ingress node (10) via intermediate nodes (40) and returning an acknowledgement message to an upstream node along the path. Absence of an acknowledgement from the downstream node, that the request message was received, is detected. Whether the given node should react to the detected absence can be determined from an indication (R) in the request message. Thus other nodes can react more quickly to take remedial action, to reroute or to remove the resource reservations without a long wait for a time out or a refresh message from the waiting ingress node, to enable more efficient use of the resources.
摘要翻译：为网络节点之间的业务建立标签交换路径（LSP），涉及从入节点（10）经由中间节点（40）发送请求预留所请求的LSP的资源的请求消息，并将确认消息返回给沿着路径的上游节点。检测到从下游节点没有接收到请求消息的确认。是否可以根据请求消息中的指示（R）确定给定节点对检测到的不存在的响应。因此，其他节点可以更快地作出反应，采取补救措施，重新路由或删除资源预留，而不需要等待超时或等待的入口节点的刷新消息，才能更有效地利用资源。

4. 发明授权

US08165012B2 Protection mechanisms for a communications network 有权
标题翻译：通信网络的保护机制
公开(公告)号：US08165012B2
公开(公告)日：2012-04-24
申请号：US12143160
申请日：2008-06-20
申请人： Riccardo Martinotti , Diego Caviglia
发明人： Riccardo Martinotti , Diego Caviglia
IPC分类号： G01R31/08 , G06F11/00
CPC分类号： H04L45/00
摘要： A method of path protection for a connection-oriented packet switched communications network is described using a protection hub in communication with a worker hub via a core protection path. Both the worker hub and the protection hub communicate with at least one provider edge device via a respective worker and protection paths. The method detects a failure in the communications network, indicates the failure to the at least one of the provider edge device, the worker hub, and the protection hub. The method then employs the core protection path if a failure occurs along a worker path is detected, or a worker path and a protection path in parallel if a failure occurs along the core protection path.
摘要翻译：通过核心保护路径，使用与工作集线器通信的保护集线器描述面向连接的分组交换通信网络的路径保护方法。工作人员中心和保护中心都通过相应的工作人员和保护路径与至少一个提供商边缘设备进行通信。该方法检测通信网络中的故障，指示提供商边缘设备，工作者中心和保护集线器中的至少一个的故障。如果沿着核心保护路径发生故障，则如果检测到沿着工作路径发生故障，则该方法采用核心保护路径，或者如果沿着核心保护路径发生故障，则工作者路径和保护路径并行。

5. 发明申请

US20110122765A1 Protection Against The Effect of Equipment Failure in a Communications System 有权
标题翻译：防止通信系统中设备故障的影响
公开(公告)号：US20110122765A1
公开(公告)日：2011-05-26
申请号：US12781233
申请日：2010-05-17
申请人： Diego Caviglia , Francesco Lazzeri , Giovanni Fiaschi , Mario Molinari
发明人： Diego Caviglia , Francesco Lazzeri , Giovanni Fiaschi , Mario Molinari
IPC分类号： H04L12/26
CPC分类号： H04L41/0668 , H04J2203/006 , H04L41/0677 , H04L45/00 , H04L45/22 , H04L45/28 , H04L69/40
摘要： A data communications system has a plurality of nodes connected by a plurality of links. A subset of the links and nodes forms a worker path for carrying worker data through the communications system, and a further subset of links and nodes provides a protection path for carrying other data in the absence of a fault in the worker path and for providing an alternative path for the worker data in the event of a fault in the worker path. The alternative path is predetermined prior to the detection of a fault in the worker path.
摘要翻译：数据通信系统具有通过多个链路连接的多个节点。链路和节点的子集形成用于通过通信系统承载工作者数据的工作者路径，并且链路和节点的另一子集提供保护路径，用于在工作者路径中不存在故障的情况下携带其他数据，并提供在工作人员路径发生故障时，工作人员数据的备用路径。替代路径在检测到工作者路径中的故障之前是预先确定的。

6. 发明申请

US20100103942A1 LABEL SWITCHED PATH NETWORKING 失效
标题翻译：标签开关路径网络
公开(公告)号：US20100103942A1
公开(公告)日：2010-04-29
申请号：US12525941
申请日：2008-02-07
申请人： Diego Caviglia , Attila Takacs
发明人： Diego Caviglia , Attila Takacs
IPC分类号： H04L12/56 , H04J3/22
CPC分类号： H04L45/00 , H04L45/50
摘要： A network arranged to implement label switched paths, comprising: an ingress label edge router (LER), atleast one label switching router (LSR), and an egress LER, in which the ingress LER is connected to the egress LER via one or more of the LSRs. In said network the ingress LER is arranged to transmit, in use, a path message for setting up a bidirectional label switched path (LSP) from the ingress LER to the egress LER via at least one LSR in response for a request for such an LSP. The path message is transmitted over the path of the LSP to be created, in which the path message comprises a first parameter indicative of the bandwidth to be assigned to data traversing the LSP in a first, downstream, direction from ingress LER to egress LER and a second parameter indicative of the bandwidth to be assigned to data traversing the LSP in an opposite, upstream, direction, in which the upstream and downstream bandwidths are different.
摘要翻译：一种布置成实现标签交换路径的网络，包括：入口标签边缘路由器（LER），至少一个标签交换路由器（LSR）和出口LER，其中入口LER经由一个或多个 LSRs。在所述网络中，入口LER被布置为在使用中传输用于响应于对这样的LSP的请求，经由至少一个LSR从入口LER到入口LER建立双向标签交换路径（LSP）的路径消息。路径消息通过要创建的LSP的路径发送，其中路径消息包括指示要分配给从进入LER到出口LER的第一，下游方向上穿越LSP的数据的带宽的第一参数，以及指示要分配给上游和下游带宽不同的相反，上游方向上的LSP的数据的带宽的第二参数。

7. 发明申请

US20060104274A1 Method for distributed multicast routing in connection-oriented networks and network for applying this method 有权
标题翻译：面向连接的网络和网络中的分布式组播路由方法
公开(公告)号：US20060104274A1
公开(公告)日：2006-05-18
申请号：US10476165
申请日：2002-05-03
申请人： Diego Caviglia , Giovanni Fiaschi , Francesco Lazzeri
发明人： Diego Caviglia , Giovanni Fiaschi , Francesco Lazzeri
IPC分类号： H04L12/56
CPC分类号： H04L12/185 , H04L45/10 , H04L45/12 , H04L45/16 , H04L45/26
摘要： A method for multicast routing for a telecommunications network comprising a plurality of communication nodes interconnected by multiple paths, for the establishment of a multicasting connection between a source node and a plurality of destination nodes, in which the destination nodes are informed that a multicast connection request is arriving from a particular source. Each destination node then sends a connection request to the source, and these requests are processed and relayed by each node within the network. The requests are propagated from node to node until they reach the source node, carrying the information on the cost accumulated along the path. Finally, the source node, having received the information on the costs of the possible paths, selects the path which has a satisfactory cost.
摘要翻译：一种用于电信网络的组播路由的方法，包括由多个路径互连的多个通信节点，用于在源节点和多个目的地节点之间建立多播连接，其中目的地节点被通知多播连接请求来自特定的来源。每个目的地节点然后向源发送连接请求，并且这些请求由网络内的每个节点处理和中继。请求从节点传播到节点，直到它们到达源节点，携带沿着路径累积的成本的信息。最后，源节点已经收到关于可能路径成本的信息，选择了具有令人满意的成本的路径。

8. 发明申请

US20060004916A1 Communications system 有权
标题翻译：通讯系统
公开(公告)号：US20060004916A1
公开(公告)日：2006-01-05
申请号：US10531188
申请日：2003-10-14
申请人： Diego Caviglia , Francesco Lazzeri , Giovanni Fiaschi , Mario Molinari
发明人： Diego Caviglia , Francesco Lazzeri , Giovanni Fiaschi , Mario Molinari
IPC分类号： G06F15/173
CPC分类号： H04L41/0668 , H04J2203/006 , H04L41/0677 , H04L45/00 , H04L45/22 , H04L45/28 , H04L69/40
摘要： A data communications system has a plurality of nodes connected by a plurality of links. A subset of the links and nodes forms a worker path for carrying worker data through the communications system, and a further subset of links and nodes provides a protection path for carrying other data in the absence of a fault in the worker path and for providing an alternative path for the worker data in the event of a fault in the worker path. The alternative path is predetermined prior to the detection of a fault in the worker path.
摘要翻译：数据通信系统具有通过多个链路连接的多个节点。链路和节点的子集形成用于通过通信系统承载工作者数据的工作者路径，并且链路和节点的另一子集提供保护路径，用于在工作者路径中不存在故障的情况下携带其他数据，并提供在工作人员路径发生故障时，工作人员数据的备用路径。替代路径在检测到工作者路径中的故障之前是预先确定的。

9. 发明授权

US09450778B2 P2MP traffic protection in MPLS-TP ring topology 有权
标题翻译： MPLS-TP环形拓扑中的P2MP流量保护
公开(公告)号：US09450778B2
公开(公告)日：2016-09-20
申请号：US12512781
申请日：2009-07-30
申请人： Daniele Ceccarelli , Francesco Fondelli , Diego Caviglia
发明人： Daniele Ceccarelli , Francesco Fondelli , Diego Caviglia
IPC分类号： G01R31/08 , H04L12/437 , H04L12/707 , H04L12/703 , H04L12/723
CPC分类号： H04L12/437 , H04L45/22 , H04L45/28 , H04L45/50 , H04L45/507
摘要： In a connection-oriented network a point-to-multipoint working path is established between a source node and a plurality of destination nodes using a number of working path intermediate nodes. A point-to-multipoint protection path is established for possible points of failure in the working path. Each protection path connects a first working path intermediate node upstream of a point of failure and destination nodes of the working path downstream of the first working path intermediate node. The point-to-multipoint protection path only connects to destination nodes of the working path and working path intermediate nodes which must be transited to reach the destination nodes of the working path.
摘要翻译：在面向连接的网络中，使用多个工作路径中间节点在源节点和多个目的地节点之间建立点对多点工作路径。为工作路径中的可能故障点建立点对多点保护路径。每个保护路径将故障点上游的第一工作路径中间节点与第一工作路径中间节点下游的工作路径的目标节点相连。点到多点保护路径仅连接到工作路径的目标节点和工作路径中间节点，必须转移到中间节点以到达工作路径的目标节点。

10. 发明申请

US20150249549A1 ENCAPSULATING CPRI FRAMES 有权
标题翻译：封装CPRI框架
公开(公告)号：US20150249549A1
公开(公告)日：2015-09-03
申请号：US14408794
申请日：2012-07-23
申请人： Riccardo Martinotti , Diego Caviglia , Giulio Bottari
发明人： Riccardo Martinotti , Diego Caviglia , Giulio Bottari
IPC分类号： H04L12/46 , H04L12/939
CPC分类号： H04L12/4633 , H04L49/555
摘要： A Common Public Radio Interface (CPRI) link involves using a protocol stack having a CPRI layer and an emulation layer to emulate a point to point link, to enable the CPRI link to operate over a packet switched network. The emulation layer can be a pseudowire emulation which encapsulates multiple CPRI frames in a packet with overhead. A multiplexing layer such as Internet Protocol (IP) or Multiprotocol Label Switching (MPLS) can be used, for sending the packet over an Ethernet network. The usual need for a point to point infrastructure for the CPRI link can be avoided and the CPRI link can be implemented over more complex but usually cheaper packet networks, thus reducing costs or enabling more widespread application over existing packet networks. This applies whether the packet network is dedicated to the CPRI link, or shared with other packets. It can be useful for distributed radio base stations.
摘要翻译：通用公共无线电接口（CPRI）链路涉及使用具有CPRI层和仿真层的协议栈来模拟点对点链路，以使得CPRI链路能够通过分组交换网络进行操作。仿真层可以是在具有开销的分组中封装多个CPRI帧的伪线仿真。可以使用诸如因特网协议（IP）或多协议标签交换（MPLS）的复用层，用于通过以太网发送分组。可以避免对CPRI链路的点对点基础设施的通常需要，并且可以通过更复杂但通常更便宜的分组网络来实现CPRI链路，从而降低成本或使现有分组网络上的应用更广泛。这适用于分组网络是专用于CPRI链路还是与其他分组共享。这对于分布式无线电基站是有用的。

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