公开(公告)号：US5623481A

公开(公告)日：1997-04-22

申请号：US483525

申请日：1995-06-07

申请人： Will Russ ,  Mark W. Sees

发明人： Will Russ ,  Mark W. Sees

IPC分类号： H04J3/14 ,  H04Q3/00 ,  H04Q11/04

CPC分类号： H04J3/14 ,  H04Q11/0478 ,  H04Q3/0079 ,  H04J2203/0057 ,  H04J2203/006

摘要： To verify that a communications path restored in response to a failure to a telecommunications network is a validly restored path, each of the end nodes terminating the restored communications path sends out a message containing data that identifies that node and the ID of the access/egress port to which the STS-1 circuit forming the communications path is connected. Once the respective path verification messages are exchanged between the two end nodes of the communications path, the Operations Support System (OSS) that oversees the topology of the network retrieves those messages and compares the data contained therein with the data of the same type of messages from the same ends nodes that were stored just prior to the occurrence of the disruption to the communications path. The restored communications path is deemed to be verified if there are no differences between the path verification messages retrieved after the failure event and the path verification messages stored just prior to the failure event.

摘要翻译： 为了验证响应于电信网络的故障恢复的通信路径是有效地恢复的路径，终止恢复的通信路径的每个终端节点发送包含标识该节点的数据的消息和接入/出口的ID 连接形成通信路径的STS-1电路的端口。 一旦相应的路径验证消息在通信路径的两个端点之间交换，则监督网络拓扑的操作支持系统（OSS）检索那些消息并将其中包含的数据与相同类型的消息的数据进行比较 从相同的端点开始在通信路径中断之前存储的节点。 如果在故障事件之后检索到的路径验证消息与在故障事件之前存储的路径验证消息之间没有差异，则认为恢复的通信路径被验证。

公开(公告)号：US5841759A

公开(公告)日：1998-11-24

申请号：US781495

申请日：1997-01-13

申请人： Will Russ ,  Mark Wayne Sees

发明人： Will Russ ,  Mark Wayne Sees

IPC分类号： H04J3/14 ,  H04Q3/00 ,  H04Q11/04

CPC分类号： H04J3/14 ,  H04Q11/0478 ,  H04Q3/0079 ,  H04J2203/0057 ,  H04J2203/006

摘要： To verify that a communications path restored in response to a failure to a telecommunications network is a validly restored path, each of the end nodes terminating the restored communications path sends out a message containing data that identifies that node and the ID of the access/egress port to which the STS-1 circuit forming the communications path is connected. Once the respective path verification messages are exchanged between the two end nodes of the communications path, the Operations Support System (OSS) that oversees the topology of the network retrieves those messages and compares the data contained therein with the data of the same type of messages from the same ends nodes that were stored just prior to the occurrence of the disruption to the communications path. The restored communications path is deemed to be verified if there are no differences between the path verification messages retrieved after the failure event and the path verification messages stored just prior to the failure event.

摘要翻译： 为了验证响应于电信网络的故障恢复的通信路径是有效地恢复的路径，终止恢复的通信路径的每个终端节点发送包含标识该节点的数据的消息和接入/出口的ID 连接形成通信路径的STS-1电路的端口。 一旦相应的路径验证消息在通信路径的两个端点之间交换，则监督网络拓扑的操作支持系统（OSS）检索那些消息并将其中包含的数据与相同类型的消息的数据进行比较 从相同的端点开始在通信路径中断之前存储的节点。 如果在故障事件之后检索到的路径验证消息与在故障事件之前存储的路径验证消息之间没有差异，则认为恢复的通信路径被验证。

公开(公告)号：US5852600A

公开(公告)日：1998-12-22

申请号：US483578

申请日：1995-06-07

申请人： Will Russ

发明人： Will Russ

IPC分类号： H04M3/22 ,  H04L29/14 ,  H04M3/00 ,  H04Q3/00 ,  H04B10/08

CPC分类号： H04Q3/0079 ,  H04L69/40

摘要： In a self healing network (SHN) distributed restoration algorithm (DRA) scheme, in the case where two adjacent tandem nodes are contending for the same spare link, an arbitration scheme is used to determine which tandem node has the right to reserve the spare link for its use. The arbitration scheme entails a pre-event knowledge by each of the tandem nodes of the transmission time therebetween. A tandem node link arbitration timer in each of the adjacent nodes provides a predefined time period for which a node can compare whether it had begun sending out its flooding signature before the far end node had sent out its. Thus, when a node detects a newly arrived signature received from the spare link that connects the node to its far end node, and if this newly arrived signature is detected before the predefined time period has elapsed, then the node will give up the spare link for the use of the far end node. Alternatively, if the signature, if any, from the far end node is detected by the node only after the predefined time has elapsed, then the node will reserve the connecting spare link for its own use.

摘要翻译： 在自愈网络（SHN）分布式恢复算法（DRA）方案中，在两个相邻的串联节点竞争相同的备用链路的情况下，使用仲裁方案来确定哪个汇接节点有权保留备用链路 供其使用。 仲裁方案需要每个串联节点之间的传输时间的事件前知识。 在每个相邻节点中的串联节点链路仲裁定时器提供预定义的时间段，节点可以对其进行比较，以便在远端节点已经发送出来之前是否已经开始发送其洪泛签名。 因此，当节点检测到从连接节点到其远端节点的备用链路接收到的新到达签名，并且如果在经过预定时间段之前检测到该新到达的签名，则节点将放弃备用链路 用于远端节点的使用。 或者，如果仅在预定义时间过去之后，节点才能检测到来自远端节点的签名（如果有的话），则节点将保留连接备用链路以供其自己使用。

公开(公告)号：US5657320A

公开(公告)日：1997-08-12

申请号：US468302

申请日：1995-06-06

申请人： Will Russ ,  Mark Wayne Sees ,  Lee Dennis Bengston ,  Clinton Allen Wagner

发明人： Will Russ ,  Mark Wayne Sees ,  Lee Dennis Bengston ,  Clinton Allen Wagner

IPC分类号： H04L12/56 ,  H04Q3/00 ,  H04L12/24

CPC分类号： H04L45/28 ,  H04L45/00 ,  H04L45/22 ,  H04Q3/0079

摘要： The present invention provides to a distributed restoration scheme a set of timers so that multiple senders and choosers can more fairly contend for the spare capacity of a telecommunications network. In particular, a preactivation timer would force a sender that had reserved excess spare capacity of the network for restoring its own failed links to release any unused spare capacity prior to the time that it terminates its operation, provided that it has found an alt-route or alt-routes for its failed link. An alarm validation timer and a hold off timer in the invention scheme further provide for respective validation and detection that a detected fault is not transient or intermittent in nature and that a restoration process is needed to find the alt-routes.

摘要翻译： 本发明为分布式恢复方案提供了一组定时器，使得多个发送者和选择者可以更加公平地竞争电信网络的备用容量。 特别地，预激活定时器将强制已经保留网络的多余备用容量的发送器来恢复其自己的故障链路，以在其终止其操作之前释放任何未使用的备用容量，只要它已经找到了一个alt-route 或alt路由失败的链接。 本发明方案中的报警验证定时器和保持定时器进一步提供相应的验证和检测，即检测到的故障本质上不是瞬时的或间歇的，并且需要恢复过程来找到替代路由。

公开(公告)号：US06798991B1

公开(公告)日：2004-09-28

申请号：US09430095

申请日：1999-10-29

申请人： Gary B. Davis ,  Niall Robinson ,  Will Russ

发明人： Gary B. Davis ,  Niall Robinson ,  Will Russ

IPC分类号： H04B1008

CPC分类号： H04J14/0297 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0294 ,  H04J14/0295

摘要： Optical communication systems, terminal facilities of an optical communication system, optical communication methods, and methods of communicating within an optical network are provided. According to one aspect of the invention, an optical communication system includes: a plurality of optical communication conduits individually configured to communicate data communication signals; an optical switch adapted to optically couple a communication path of an associated data terminal with at least one of the optical communication conduits; and a controller configured to monitor the data communication signals and to control the optical switch responsive to the monitoring of the data communication signals.

摘要翻译： 提供了光通信系统，光通信系统的终端设备，光通信方法和光网络内的通信方法。 根据本发明的一个方面，一种光通信系统包括：多个光通信导管，其单独配置成传送数据通信信号; 光学开关，其适于将相关数据终端的通信路径与所述光通信导管中的至少一个光学耦合; 以及控制器，被配置为监视数据通信信号并且响应于对数据通信信号的监视来控制光学开关。

公开(公告)号：US06222821B1

公开(公告)日：2001-04-24

申请号：US08493741

申请日：1995-06-22

申请人： Mark Wayne Sees ,  Will Russ ,  Lee Dennis Bengston ,  Clinton Allen Wagner

发明人： Mark Wayne Sees ,  Will Russ ,  Lee Dennis Bengston ,  Clinton Allen Wagner

IPC分类号： H04J314

CPC分类号： H04L45/02 ,  H04Q3/0079

摘要： To revert the topology of a network to its original or normal state after an alternate route has been found for bypassing traffic away from a malfunctioned link that has since been repaired, an Operation Support System (OSS) sends to each of the custodial sender/chooser nodes and the tandem nodes that form the alternate route respective commands to revert the operation(s) that each node had performed during distributed restoration. The OSS is able to identify the custodial nodes by the fact that those nodes perform more operations than the tandem nodes. The operations that were performed during the distributed restoration process were recorded and the thus restored topology of the network is mapped and stored. Upon receipt from the different nodes that the malfunctioned link has been repaired, the OSS sends to each of the nodes a specific command to perform the inverse of the operation(s) that that node had performed during the restoration. The custodial nodes are ordered to perform their inverse operations first so that the malfunctioned link that has since been repaired once again connects the custodial nodes. A path verification process is next performed to ensure the integrity of the newly repaired path. Once the integrity of the repaired path is confirmed, each of the tandem nodes performs the inverse of the operation it had performed during the distributed restoration to disconnect the cross connected ports within each of the tandem nodes.

摘要翻译： 在找到替代路由以绕过已经被修复的故障链路的流量之后，将网络的拓扑恢复到其原始或正常状态，操作支持系统（OSS）发送给每个监护发送者/选择器 节点和组合节点，形成备用路由相应的命令，以恢复每个节点在分布式恢复期间执行的操作。 OSS能够通过这些节点执行比串联节点更多的操作来识别保管节点。 记录在分布式恢复过程中执行的操作，映射并存储网络恢复的拓扑。 在从不同节点接收到故障链路已被修复之后，OSS向每个节点发送一个特定命令，以执行该节点在恢复期间执行的操作的倒数。 保管节点被排序以首先执行其反向操作，使得自此被修复的故障链路再次连接保管节点。 接下来执行路径验证过程以确保新修复的路径的完整性。 一旦已修复的路径的完整性被确认，则每个串联节点执行其在分布式恢复期间执行的操作的逆，以断开每个串联节点内的交叉连接的端口。

公开(公告)号：US5862125A

公开(公告)日：1999-01-19

申请号：US483579

申请日：1995-06-07

申请人： Will Russ

发明人： Will Russ

IPC分类号： H04J3/08 ,  H04L29/14 ,  H04J1/16

CPC分类号： H04J3/085 ,  H04L69/40

摘要： A method and apparatus for restoration of unrestored links and nodal failures utilizes a combination of link and path restoration schemes and most existing message types. This invention begins by using a link restoration scheme, when a fault is detected, to designate a pair of custodial sender and chooser. The conventional link restoration scheme then seeks to find an alternate route to reroute the disrupted traffic. When no alternate route is found after a given time period, a special signal is sent out to notify the network that a path restoration is to take place. The communications path on which the failure occurred is identified. Thereafter, data that was stored in the nodes is retrieved to identify the two ends nodes of the communications path. A restoration process then takes place to find alternate paths to replace the failed communications path. Upon termination of the path restoration scheme after a predetermined time period, the most efficient alternate path is selected to restore the traffic by bypassing the location on the communications path where the failure occurred. Since fault isolation is not required, the present invention can be used to restore traffic due to a nodal failure.

摘要翻译： 用于恢复未恢复链路和节点故障的方法和装置利用链路和路径恢复方案和大多数现有消息类型的组合。 本发明首先通过使用链路恢复方案，当检测到故障时，指定一对监护发送者和选择器。 传统的链路恢复方案然后寻求找到重新路由中断业务的备用路由。 当在给定时间段之后没有找到替代路由时，发送一个特殊信号通知网络路径恢复。 识别发生故障的通信路径。 此后，检索存储在节点中的数据，以识别通信路径的两端节点。 然后进行恢复过程以找到替换失败的通信路径的备用路径。 在预定时间段结束路径恢复方案之后，选择最有效的备用路径以通过绕过发生故障的通信路径上的位置来恢复业务。 由于不需要故障隔离，因此本发明可以用于由于节点故障而恢复业务。

公开(公告)号：US5680326A

公开(公告)日：1997-10-21

申请号：US493477

申请日：1995-06-22

申请人： Will Russ ,  Mark Wayne Sees ,  Lee Dennis Bengston ,  Clinton Allen Wagner

发明人： Will Russ ,  Mark Wayne Sees ,  Lee Dennis Bengston ,  Clinton Allen Wagner

IPC分类号： H04L12/24 ,  H04L12/56 ,  H04L29/14 ,  H04M3/00 ,  H04Q3/00 ,  G06F17/00

CPC分类号： H04Q3/0079 ,  H04L41/0654 ,  H04L41/145 ,  H04L45/28 ,  H04L69/40 ,  H04Q3/0016

摘要： To estimate an optimal amount of spare capacity for a network so that efficient distributed restoration of the network can take place in the event of a network failure, parameter assumptions and network design guidelines are provided to a network modeling tool to generate a desirable amount of spare links for the network. The spare links are allocated to the different nodes of the network. After a failure in the network, the result of the restoration of the network due to the failure is reported to the controller of the system. If necessary, the parameter assumptions and network design guidelines are updated and fed back to the network modeling tool for further refining the spare capacity of the network. An optimal amount of spare capacity is thus achieved by a continuous redeployment of the spare capacity output provided by the network modeling tool. Simulated failures and subsequent restorations of the network are provided to an exerciser periodically. Results from the exerciser further enhance the operations of the network modeling tool to provide an optimal amount of spare capacity for the telecommunications network.

摘要翻译： 为了估计网络的备用容量的最佳数量，以便在发生网络故障的情况下可以进行网络的有效分布式恢复，可以向网络建模工具提供参数假设和网络设计指南，以生成所需的备用数量 网络链接。 备用链路分配给网络的不同节点。 网络故障后，系统的控制器报告由于故障而使网络恢复的结果。 如有必要，参数假设和网络设计指南将更新并反馈给网络建模工具，以进一步完善网络的备用容量。 因此，通过连续重新部署网络建模工具提供的备用容量来实现最佳的备用容量。 网络的模拟故障和随后的修复被定期提供给锻炼者。 锻炼者的结果进一步增强了网络建模工具的运作，为电信网络提供了最佳的备用容量。