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1. 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。

2. 发明授权

US09774492B2 Message passing to assure deletion of label switched path 有权
公开(公告)号：US09774492B2
公开(公告)日：2017-09-26
申请号：US13992945
申请日：2011-12-01
申请人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
发明人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
IPC分类号： H04L12/24 , H04L12/701 , H04L12/703 , H04L12/707 , H04L12/723 , H04L12/913
CPC分类号： H04L41/0654 , H04L45/00 , H04L45/22 , H04L45/28 , H04L45/50 , H04L47/724
摘要： A label switched path through a network of nodes, is torn down by sending a message along the path from an ingress node. If there is a fault along the path, a path error message (2) is sent back along the path to the ingress node. The ingress node uses a different route bypassing the fault to alert (3) a further one of the nodes (NE5, NE6) on that path beyond the indicated fault, to cause that further node to continue the tearing down for other nodes on that path beyond the indicated fault by sending a further message (4) along the portion of the path beyond the indicated fault, to indicate to the other nodes to continue the tear down. This enables the ingress node to clean up the rest of the path beyond the fault, to avoid leaving unused capacity unavailable for reuse, and to avoid time consuming manual clean up.

3. 发明申请

US20120155327A1 OWNERSHIP TRANSFER OF A LABEL SWITCHED PATH 有权
标题翻译：标签交换路径的所有权转移
公开(公告)号：US20120155327A1
公开(公告)日：2012-06-21
申请号：US13375203
申请日：2009-05-29
申请人： Francesco Fondelli , Diego Caviglia , Daniele Ceccarelli
发明人： Francesco Fondelli , Diego Caviglia , Daniele Ceccarelli
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L41/0213 , H04L41/0816 , H04L45/50
摘要： Control of a label switched path established in a network is transferred between a management plane and a control plane of the network. A node (e.g., node C) receives a message indicating a change in control of the label switched path, the message identifying the label switched path by a cross-connection identifier corresponding to an entry in the control data stored at the node which identifies data plane ingress and egress segments cross-connected at the node. Control data at the node is updated based on the identified label switched path. The message includes a list of cross-connection identifiers for nodes (e.g., nodes C, E, and F) along the label switched path. The cross-connection identifier can be an mplsXCIndex.
摘要翻译：在网络中建立的标签交换路径的控制在网络的管理平面和控制平面之间传送。节点（例如，节点C）接收指示标签交换路径的控制变化的消息，该消息通过对应于存储在标识数据的节点处的控制数据中的条目的交叉连接标识符来识别标签交换路径平面入口和出口段在节点处交叉连接。基于识别的标签交换路径来更新节点处的控制数据。消息包括沿着标签交换路径的节点（例如，节点C，E和F）的交叉连接标识符的列表。交叉连接标识符可以是mplsXCIndex。

4. 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。

5. 发明授权

US09071500B2 Ownership transfer of a label switched path 有权
标题翻译：标签交换路径的所有权转让
公开(公告)号：US09071500B2
公开(公告)日：2015-06-30
申请号：US13375203
申请日：2009-05-29
申请人： Francesco Fondelli , Diego Caviglia , Daniele Ceccarelli
发明人： Francesco Fondelli , Diego Caviglia , Daniele Ceccarelli
IPC分类号： H04L12/24 , H04L12/701 , H04L12/723
CPC分类号： H04L45/00 , H04L41/0213 , H04L41/0816 , H04L45/50
摘要： Control of a label switched path established in a network is transferred between a management plane and a control plane of the network. A node (e.g., node C) receives a message indicating a change in control of the label switched path, the message identifying the label switched path by a cross-connection identifier corresponding to an entry in the control data stored at the node which identifies data plane ingress and egress segments cross-connected at the node. Control data at the node is updated based on the identified label switched path. The message includes a list of cross-connection identifiers for nodes (e.g., nodes C, E, and F) along the label switched path. The cross-connection identifier can be an mplsXCIndex.
摘要翻译：在网络中建立的标签交换路径的控制在网络的管理平面和控制平面之间传送。节点（例如，节点C）接收指示标签交换路径的控制变化的消息，该消息通过对应于存储在标识数据的节点处的控制数据中的条目的交叉连接标识符来识别标签交换路径平面入口和出口段在节点处交叉连接。基于识别的标签交换路径来更新节点处的控制数据。消息包括沿着标签交换路径的节点（例如，节点C，E和F）的交叉连接标识符的列表。交叉连接标识符可以是mplsXCIndex。

6. 发明申请

US20120148240A1 RESERVING A PATH USING GMPLS EXTENSIONS FOR ODU SIGNALLING 审中-公开
标题翻译：使用GMPLS扩展保留ODU信号的路径
公开(公告)号：US20120148240A1
公开(公告)日：2012-06-14
申请号：US13321042
申请日：2010-01-04
申请人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
发明人： Daniele Ceccarelli , Diego Caviglia , Francesco Fondelli
IPC分类号： H04J14/00
CPC分类号： H04Q11/0062 , H04J3/1652 , H04L45/50 , H04L47/724 , H04L47/825 , H04Q2011/0073 , H04Q2011/0084 , H04Q2011/0088
摘要： A method of requesting reservation of a label switched path (LSP) for traffic of a type compatible with ITU-T G709 amendment 3, in an optical transport network by sending a RSVP-TE path message for the reservation of the requested LSP from an ingress node of the requested path, via intermediate nodes along the path to an egress node, and sending a RSVP-TE resv message from the egress node, to cause the nodes to reserve resources for the requested path. The path message has a signal type field having values assigned to indicate traffic types specified in G.709 amendment 3 beyond those specified by G.709 pre amendment 3, without reuse of values specified by G.709 pre amendment 3. Since the nodes along the path can still distinguish in the signal type field any values of the signal type field specified by G.709 pre amendment 3, new nodes can still work with legacy messages.
摘要翻译：一种在光传输网络中请求预留与ITU-T G709修订版3兼容的类型的业务的标签交换路径（LSP）的方法，通过从入口发送用于预留所请求的LSP的RSVP-TE路径消息通过到出口节点的路径的中间节点，并且从出口节点发送RSVP-TE RESV消息，以使节点为所请求的路径预留资源，所请求路径的节点。路径消息具有信号类型字段，其具有被指定用于指示G.709修正3中指定的G.709修正3以外规定的业务类型的值，而不重用由G.709预修改3指定的值。由于节点该路径仍然可以在信号类型字段中区分由G.709预修改3指定的信号类型字段的任何值，新节点仍然可以使用旧的消息。

7. 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。

8. 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。

9. 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。

10. 发明授权

US09356828B2 Shared path recovery scheme 有权
标题翻译：共享路径恢复方案
公开(公告)号：US09356828B2
公开(公告)日：2016-05-31
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 , H04L12/735 , H04L12/707 , H04L12/703 , H04L12/723 , H04L12/803 , H04L12/939
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。

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