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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. 发明申请

US20150244453A1 WSON RESTORATION 有权
标题翻译： WSON恢复
公开(公告)号：US20150244453A1
公开(公告)日：2015-08-27
申请号：US14344973
申请日：2011-10-12
申请人： Giulio Bottari , Diego Caviglia , Daniele Ceccarelli
发明人： Giulio Bottari , Diego Caviglia , Daniele Ceccarelli
IPC分类号： H04B10/032 , H04Q11/00 , H04J14/02 , H04B10/2575
CPC分类号： H04B10/032 , H04B10/2575 , H04J14/00 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04J14/0257 , H04J14/0267 , H04J14/0268 , H04J14/0271 , H04J14/0284 , H04Q11/0005 , H04Q2011/0043
摘要： Dynamic restoration involves routing and bandwidth assignment of an unplanned restoration path in a wavelength switched optical network (20), having regeneration nodes (60), nodes each having a ROADM (62) having drop paths and add paths. An electrical switch (68) provides configurable regeneration capacity by coupling selected drop paths to selected add paths. Some of the configurable regeneration capacity is kept for unplanned restoration paths. A PCE determines (120) routing and bandwidth assignments for an unplanned restoration path for the traffic flow to avoid a fault, and sends (130) configuration messages to the nodes to set up the unplanned restoration path dynamically and to configure the electrical switch to provide regeneration on the path. Keeping some reconfigurable regeneration capacity enables much longer unplanned paths to be found to avoid faults, and enables wavelength conversion if needed. Thus the reliability of finding at least one path avoiding the fault can be increased.
摘要翻译：动态恢复涉及在具有再生节点（60）的波长交换光网络（20）中的非计划恢复路径的路由和带宽分配，每个节点具有具有丢弃路径和添加路径的ROADM（62）。电开关（68）通过将所选择的放置路径耦合到所选择的附加路径来提供可配置的再生能力。一些可配置的再生能力被保留用于非计划的恢复路径。 PCE确定（120）用于业务流的非计划恢复路径的路由和带宽分配以避免故障，并且向节点发送（130）配置消息以动态地建立非计划恢复路径并且配置电开关以提供在路上再生。保持一些可重新配置的再生能力可以实现更长的非计划路径，以避免故障，并在需要时实现波长转换。因此，可以增加找到至少一个避免故障的路径的可靠性。

5. 发明申请

US20150229512A1 PROPAGATION OF NETWORK CONFIGURATION UPDATE FROM NETWORK MANAGER TO NETWORK NODES USING ROUTING PROTOCOL 审中-公开
标题翻译：使用路由协议将网络配置更新到网络管理员更新到网络节点
公开(公告)号：US20150229512A1
公开(公告)日：2015-08-13
申请号：US14404626
申请日：2012-06-08
申请人： Enrico Dutti , Daniele Ceccarelli , Silvia Pucci
发明人： Enrico Dutti , Daniele Ceccarelli , Silvia Pucci
IPC分类号： H04L12/24 , H04L12/26
CPC分类号： H04L41/082 , H04L41/0816 , H04L41/0853 , H04L41/0886 , H04L41/0889 , H04L43/065 , H04L45/02 , H04L45/32
摘要： A method in a node of a network comprises the steps of receiving a configuration command signal, the configuration command signal indicating that one or more configuration parameters are to be changed in the node and at least one other node of the network. A routing protocol message is modified to include the configuration command signal. The configuration command signal is communicated to the at least one other node of the network using the modified routing protocol message.
摘要翻译：网络节点中的方法包括以下步骤：接收配置命令信号，所述配置命令信号指示所述节点中的一个或多个配置参数将被改变并且所述网络的至少另一个节点。路由协议消息被修改为包括配置命令信号。使用修改的路由协议消息将配置命令信号传送到网络的至少一个其他节点。

6. 发明申请

US20150071057A1 SEGMENT RECOVERY 审中-公开
标题翻译：部分恢复
公开(公告)号：US20150071057A1
公开(公告)日：2015-03-12
申请号：US13996819
申请日：2011-04-18
申请人： Daniele Ceccarelli , Diego Caviglia , Paolo Rebella
发明人： Daniele Ceccarelli , Diego Caviglia , Paolo Rebella
IPC分类号： H04L12/24 , H04L12/703
CPC分类号： H04L41/0668 , H04L45/22 , H04L45/28 , H04L45/50
摘要： In a communications network, a recovery segment is used to reroute a recoverable part of a path set up along an original route along links between nodes. When a defect is detected in the original route of the path, but is undetectable by nodes within the recoverable part, a reroute message is sent (5) from outside the recoverable part to an end node (N2,N4) of the recoverable part. This prompts the rerouting of the recoverable part over the recovery segment. Thus segment recovery becomes possible for these defects which cannot be detected at nodes in the segment. This extends the applicability of benefits of segment recovery such as reduced resources devoted to recovery, and flexibility to choose which parts of paths to protect. The end node can send a notify message beforehand, to request (3) notification of the defect as the reroute message.
摘要翻译：在通信网络中，恢复段用于沿着沿着节点之间的链路沿原始路由设置的路径的可恢复部分重新路由。当在路径的原始路由中检测到缺陷，但是可恢复部分内的节点不能检测到缺陷时，从可恢复部分的外部向可恢复部分的末端节点（N2，N4）发送重新路由消息（5）。这将提示可恢复部分通过恢复段重新路由。因此，对于在段中的节点处不能检测到的这些缺陷，段恢复成为可能。这扩展了部分恢复的好处的适用性，例如减少用于恢复的资源，以及灵活选择要保护的路径的哪些部分。结束节点可以预先发送通知消息，以请求（3）将缺陷的通知作为重新路由消息。

7. 发明申请

US20140193148A1 Node and Method For Iterative Improvement of Spectral Use 有权
标题翻译：节点和方法迭代改进光谱使用
公开(公告)号：US20140193148A1
公开(公告)日：2014-07-10
申请号：US13819927
申请日：2012-06-15
申请人： Stefan Dahlfort , Gianmarco Bruno , Daniele Ceccarelli , Antonio Tartaglia , Ming Xia
发明人： Stefan Dahlfort , Gianmarco Bruno , Daniele Ceccarelli , Antonio Tartaglia , Ming Xia
IPC分类号： H04B10/07 , H04B10/27
CPC分类号： H04B10/073 , H04B10/0775 , H04B10/27
摘要： Example embodiments presented herein are directed towards an optical testing node, and method therein, for establishing transmission parameters for optical communications in an iterative manner. The establishment of the transmission parameters may comprise adjusting various parameters such as a modulation scheme, a light path length, and/or a spectral width.
摘要翻译：这里呈现的示例性实施例涉及一种用于以迭代方式建立用于光通信的传输参数的光学测试节点及其方法。传输参数的建立可以包括调整诸如调制方案，光路长度和/或光谱宽度的各种参数。

8. 发明申请

US20130044589A1 SHARED PATH RECOVERY SCHEME 有权
标题翻译：共享路径恢复方案
公开(公告)号：US20130044589A1
公开(公告)日：2013-02-21
申请号：US13520538
申请日：2010-02-17
申请人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
发明人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
IPC分类号： H04L12/24
CPC分类号： H04L41/0668 , H04L41/0654 , H04L45/128 , H04L45/22 , H04L45/28 , H04L45/50 , H04L47/125 , H04L49/557
摘要： A connection-oriented network has a first working path (W1) and a second working path (W2). A node (E) receives signalling to allocate resources for a part of a recovery path (R1) for the first working path (W1). The resources are shared by the recovery path (R1) for the first working path and a recovery path (R2a) for the second working path (W2). The node (E) stores an association between the shared resources and a node (A) on the first working path, identified in the signalling, which should be notified when the shared resources are used by the recovery path (R2a) for the second working path (W2). An RSVP-TE object in the signalling carries an address of the node to be notified. The node (E) sends an RSVP-TE Notify message to a node (A) on the first working path (W1) which indicates that the shared resources are in use.
摘要翻译：面向连接的网络具有第一工作路径（W1）和第二工作路径（W2）。节点（E）接收用于为第一工作路径（W1）的恢复路径（R1）的一部分分配资源的信令。资源由用于第一工作路径的恢复路径（R1）和用于第二工作路径（W2）的恢复路径（R2a）共享。节点（E）存储在信令中标识的第一工作路径上的共享资源和节点（A）之间的关联，当共享资源被恢复路径（R2a）用于第二工作时应当被通知路径（W2）。信令中的RSVP-TE 对象携带要通知的节点的地址。节点（E）向第一工作路径（W1）上的节点（A）发送RSVP-TE通知消息，指示共享资源正在使用中。

9. 发明申请

US20120207017A1 RECOVERY MECHANISM FOR POINT-TO-MULTIPOINT TRAFFIC 审中-公开
标题翻译：点到多点交通的恢复机制
公开(公告)号：US20120207017A1
公开(公告)日：2012-08-16
申请号：US13384054
申请日：2009-07-16
申请人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
发明人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
IPC分类号： H04L12/437 , H04L12/26
CPC分类号： H04L45/22 , H04L12/437 , H04L41/0803 , H04L45/10 , H04L45/28 , H04L45/50
摘要： A connection-oriented network (5) has a point-to-multipoint working path (10) between a source node (A) and a plurality of destination nodes (B-F). On detection of a failure in the working path, an indication of the failure is sent to a first node (e.g. node A) identifying the point of failure. The indication is sent via a control plane of the network. The first node selects one of a plurality of point-to-multipoint backup paths (21-25) based on the point of failure. Each backup paths connects the first node to the plurality of destination nodes. There is a point-to-multipoint backup path (21-25) for each of a plurality of possible points of failure along the working path. The backup paths (21-25) can be pre-configured to carry traffic in advance of the detection of failure. Alternatively, the first node can signal to nodes of the selected backup path to fully establish the backup path when it is required.
摘要翻译：面向连接的网络（5）在源节点（A）和多个目的地节点（B-F）之间具有点对多点的工作路径（10）。在检测到工作路径中的故障时，将故障的指示发送到识别故障点的第一节点（例如，节点A）。该指示通过网络的控制平面发送。第一节点基于故障点选择多个点对多点备份路径（21-25）中的一个。每个备份路径将第一节点连接到多个目的节点。对于工作路径中的多个可能的故障点中的每一个，存在点对多点备份路径（21-25）。备用路径（21-25）可以预先配置为在故障检测之前携带流量。或者，第一节点可以向所选备份路径的节点发信号，以便在需要时完全建立备份路径。

10. 发明申请

US20100214909A1 P2MP TRAFFIC PROTECTION IN MPLS-TP RING TOPOLOGY 有权
标题翻译： MPLS-TP环形拓扑中的P2MP交通保护
公开(公告)号：US20100214909A1
公开(公告)日：2010-08-26
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： H04L12/26
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。点对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。

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