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1. 发明授权

US06616350B1 Method and apparatus for providing a more efficient use of the total bandwidth capacity in a synchronous optical network 有权
标题翻译：用于在同步光网络中更有效地使用总带宽容量的方法和装置
公开(公告)号：US06616350B1
公开(公告)日：2003-09-09
申请号：US09471141
申请日：1999-12-23
申请人： Evert de Boer , Joseph Olajubu , Peter W. Phelps , Louis R. Paré , Darryl C. Ryan
发明人： Evert de Boer , Joseph Olajubu , Peter W. Phelps , Louis R. Paré , Darryl C. Ryan
IPC分类号： H04J1400
CPC分类号： H04J3/085 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0283 , H04J14/0284
摘要： The present invention relates to a local node for use in a synchronous optical network ring. The local node includes a group of working transmission lines and a protection line, for connecting to a remote node. The local node further includes a control unit for monitoring the working transmission lines and, upon detection of a data transmission impairment over a particular working transmission line, invoking a protection switch event causing re-routing of optical signals from the particular working transmission line to the protection line. Should the control unit detect simultaneous data transmission impairments over two or more working transmission lines, the control unit will choose to protect a particular working transmission line on the basis of a user-defined priority scheme.
摘要翻译：本发明涉及一种在同步光网络环中使用的本地节点。本地节点包括一组工作传输线和保护线，用于连接到远程节点。本地节点还包括用于监视工作传输线的控制单元，并且在检测到特定工作传输线上的数据传输损害后，调用保护开关事件，导致将光信号从特定工作传输线重新路由到保护线。如果控制单元在两条或多条工作传输线路上检测到同时的数据传输损伤，则控制单元将根据用户定义的优先级方案选择保护特定的工作传输线路。

2. 发明授权

US07372803B2 Apparatus and method for establishment and protection of connections within mesh networks 有权
标题翻译：用于建立和保护网状网络内连接的装置和方法
公开(公告)号：US07372803B2
公开(公告)日：2008-05-13
申请号：US10107044
申请日：2002-03-28
申请人： Evert de Boer , James A. Shields , Richard Trudel , Malcolm Betts
发明人： Evert de Boer , James A. Shields , Richard Trudel , Malcolm Betts
IPC分类号： G01R31/08
CPC分类号： H04L45/28 , H04L12/437 , H04L12/4637 , H04L45/00 , H04L45/22 , H04L45/586 , H04L45/60
摘要： A node within a mesh network includes an Optical Connection Controller (OCC) and a network element. When a connection path within the mesh network is required, an OCC determines if a particular connection path requires a network element to operate as a virtual gateway to separate the mesh network into separate protection domains for that particular connection path. A connection path might require separate protection domains in cases in which the number of network elements and/or repeater/amplifier components for a particular connection path is greater than a threshold, the total length of links for the connection path is above a threshold and/or another factor that could cause the recovery time for the connection path to increase beyond an acceptable threshold level. If the OCC determines that one or more virtual gateways are required for a particular connection path, the OCC selects an appropriate network element within the network to operate as a virtual gateway for that particular connection path. Finally, the OCC assigns network elements and links to establish working and protection paths between the source network element and the virtual gateway and between the virtual gateway and the destination network element. This set-up can ensure that each connection path will have a recovery time after a failure within an acceptable range.
摘要翻译：网状网络内的节点包括光连接控制器（OCC）和网元。当需要网状网络中的连接路径时，OCC确定特定连接路径是否要求网络元件作为虚拟网关进行操作，以将网状网络分离为用于该特定连接路径的单独的保护域。在特定连接路径的网络元件和/或中继器/放大器组件的数量大于阈值的情况下，连接路径可能需要单独的保护域，连接路径的链路的总长度高于阈值和/ 或者可能导致连接路径的恢复时间增加超过可接受的阈值水平的另一个因素。如果OCC确定特定连接路径需要一个或多个虚拟网关，则OCC选择网络内的适当网络元件作为该特定连接路径的虚拟网关进行操作。最后，OCC分配网元和链路，建立源网元和虚拟网关之间以及虚拟网关与目的网元之间的工作和保护路径。此设置可以确保每个连接路径在故障之后的恢复时间在可接受的范围内。

3. 发明授权

US07042835B1 Method and apparatus for ensuring survivability of inter-ring traffic 有权
标题翻译：确保环网间业务的生存能力的方法和装置
公开(公告)号：US07042835B1
公开(公告)日：2006-05-09
申请号：US10706920
申请日：2003-11-14
申请人： Evert de Boer , David Steele , Peter Phelps , Louis-Rene Pare , Robert Caporuscio
发明人： Evert de Boer , David Steele , Peter Phelps , Louis-Rene Pare , Robert Caporuscio
IPC分类号： H04J1/16
CPC分类号： H04W24/04 , H04J3/085 , H04J2203/0042 , H04J2203/006 , H04L12/437 , H04W88/16
摘要： A method and corresponding network element configuration for delivering communications services between first and second survivable rings, each comprising a respective plurality of network elements, at least two of which are common to both rings. For each particular service, one of the common network elements is designated as a primary gateway node and another as a secondary gateway node. A primary inter-ring connection is established for the particular service by a switch at the primary gateway node, but no inter-ring connection is established at the secondary gateway node. The secondary gateway node comprises a controller for monitoring the status of the primary gateway node and establishing a new inter-ring connection for delivery of the service upon detecting a failure of the primary gateway node. This provides survivable inter-ring traffic which is bandwidth-efficient and with a low switching delay.
摘要翻译：一种用于在第一和第二可生存环之间递送通信服务的方法和相应的网络元件配置，每个包括相应的多个网络元件，其中至少两个网络元件是两个环共同的。对于每个特定服务，公共网络元素之一被指定为主网关节点，另一个被指定为次网关节点。由主网关节点上的交换机为特定业务建立主环形连接，但在次网关节点处不建立环网间连接。辅助网关节点包括用于监视主网关节点的状态并且在检测到主网关节点的故障时建立用于传送服务的新的环际间连接的控制器。这提供了可行的环际间流量，其具有带宽效率并且具有低切换延迟。

4. 发明授权

US06400859B1 Optical ring protection having matched nodes and alternate secondary path 失效
标题翻译：具有匹配节点和备用辅助路径的光环保护
公开(公告)号：US06400859B1
公开(公告)日：2002-06-04
申请号：US09339253
申请日：1999-06-24
申请人： Evert de Boer , Peter William Phelps , Louis Rene Pare , David Charles Steele , Stephen Wilson
发明人： Evert de Boer , Peter William Phelps , Louis Rene Pare , David Charles Steele , Stephen Wilson
IPC分类号： G02B628
CPC分类号： H04J14/0294 , H04J14/0283 , H04J14/0291
摘要： The matched nodes provide protection for a failure in the connection between two bidirectional line switched rings. They use a secondary path in case of a primary path failure. The secondary path is set aside in either the working or protection bandwidth of the rings, thus wasting resources. The invention uses a dedicated secondary path between the primary and secondary nodes. With the invention, no ring protection mechanisms are compromised and the ring bandwidth is not wasted. Middle nodes also realize full add/drop capabilities.
摘要翻译：匹配的节点为两个双向线路交换环之间的连接故障提供保护。在主路径故障的情况下，它们使用辅助路径。辅助路径被放在环的工作或保护带宽中，从而浪费资源。本发明使用主节点和次节点之间的专用辅路径。利用本发明，环路保护机制不受影响，环带宽不被浪费。中间节点还实现全面的添加/删除功能。

5. 发明授权

US06658013B1 Method and apparatus for ensuring survivability of inter-ring traffic 有权
标题翻译：确保环网间业务的生存能力的方法和装置
公开(公告)号：US06658013B1
公开(公告)日：2003-12-02
申请号：US09273772
申请日：1999-03-23
申请人： Evert de Boer , David Steele , Peter Phelps , Louis-Rene Pare , Robert Caporuscio
发明人： Evert de Boer , David Steele , Peter Phelps , Louis-Rene Pare , Robert Caporuscio
IPC分类号： H04J116
CPC分类号： H04W24/04 , H04J3/085 , H04J2203/0042 , H04J2203/006 , H04L12/437 , H04W88/16
摘要： A method and corresponding network element configuration for delivering communications services between first and second survivable rings, each comprising a respective plurality of network elements, at least two of which are common to both rings. For each particular service, one of the common network elements is designated as a primary gateway node and another as a secondary gateway node. A primary inter-ring connection is established for the particular service by a switch at the primary gateway node, but no inter-ring connection is established at the secondary gateway node. The secondary gateway node comprises a controller for monitoring the status of the primary gateway node and establishing a new inter-ring connection for delivery of said service upon detecting a failure of the primary gateway node. This provides survivable inter-ring traffic which is bandwidth-efficient and with a low switching delay.
摘要翻译：一种用于在第一和第二可生存环之间递送通信服务的方法和相应的网络元件配置，每个包括相应的多个网络元件，其中至少两个网络元件是两个环共同的。对于每个特定服务，公共网络元素之一被指定为主网关节点，另一个被指定为次网关节点。由主网关节点上的交换机为特定业务建立主环形连接，但在次网关节点处不建立环网间连接。辅助网关节点包括用于监视主网关节点的状态的控制器，并且在检测到主网关节点的故障时，建立用于传送所述服务的新的环际间连接。这提供了可行的环际间流量，其具有带宽效率并且具有低切换延迟。

6. 发明授权

US06259837B1 Optical inter-ring protection having matched nodes 有权
标题翻译：具有匹配节点的光隔离保护
公开(公告)号：US06259837B1
公开(公告)日：2001-07-10
申请号：US09339254
申请日：1999-06-24
申请人： Evert de Boer , Peter William Phelps , Louis Rene Pare , David Charles Steele , Stephen Wilson
发明人： Evert de Boer , Peter William Phelps , Louis Rene Pare , David Charles Steele , Stephen Wilson
IPC分类号： G02B628
CPC分类号： H04J14/0291 , H04J3/085 , H04J14/0283 , H04J14/0286 , H04J2203/0042 , H04J2203/006
摘要： The matched nodes provide protection for a failure in the connection between two bidirectional line switched rings. They use a secondary path in case of a primary path failure. The secondary path is set aside in either the working or protection bandwidth of the rings, thus wasting resources. The invention uses inter-ring protection mechanisms which do away with a specifically set aside secondary path between the primary and secondary nodes.
摘要翻译：匹配的节点为两个双向线路交换环之间的连接故障提供保护。在主路径故障的情况下，它们使用辅助路径。辅助路径被放在环的工作或保护带宽中，从而浪费资源。本发明使用隔离环保护机制，其消除了在主节点和次节点之间专门设置的辅路径。

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