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    Dynamic restoration process for a telecommunications network
    1.
    发明授权
    Dynamic restoration process for a telecommunications network 失效
    电信网络的动态恢复过程

    公开(公告)号：US5832196A

    公开(公告)日：1998-11-03

    申请号：US673415

    申请日：1996-06-28

    申请人： William D. Croslin ,  Mark W. Sees

    发明人： William D. Croslin ,  Mark W. Sees

    IPC分类号： H04L12/24 ,  H04Q3/00 ,  H04J3/14 ,  H04J1/16

    CPC分类号： H04L41/12 ,  H04L41/0659 ,  H04Q3/0079

    摘要： The invention is a generalized process for dynamically restoring traffic in the event of an outage in a telecommunications network. A Centralized Processing System (CPS) receives alarms from communications ports of diverse network equipment (DNE) elements. The CPS then proceeds to analyze and correlate the alarms in an effort to isolate the location of the outage. In doing so, the CPS utilizes a Network Topology database that is preferrably updated in real-time with topology data obtained directly from the DNE network. The CPS will then identify and prioritize all traffic-bearing trunks impacted by the outage. The CPS then generates and implements a restoral route for each impacted trunk by issuing appropriate reroute command to the DNEs. If a DNE responds with an indication that a command failed and that its particular restoral segment is not possible, the CPS updates Network Topology database to indicate this segment as unavailable and proceeds to generate another restoral route. After implementing a restoral route, the CPS verifies that traffic is restored. When the cause of the outage has been fixed, the CPS restores the original route.

    摘要翻译： 本发明是在电信网络中的中断的情况下动态地恢复业务的通用过程。 集中处理系统（CPS）从各种网络设备（DNE）元件的通信端口接收警报。 然后，CPS进行分析和关联报警，努力隔离停机位置。 在这样做时，CPS利用网络拓扑数据库，该数据库优选地通过从DNE网络直接获得的拓扑数据实时更新。 然后，CPS将确定所有受到停电影响的承载干线的优先级。 然后，CPS通过向DNE发出适当的重新路由命令来生成并实施每个受影响的中继线的修复路由。 如果DNE响应指示命令失败并且其特定的修复段不可行，则CPS更新网络拓扑数据库以指示该段为不可用，并且继续生成另一个修复路由。 实施恢复路线后，CPS验证交通是否恢复。 当停电的原因已经解决时，CPS恢复了原来的路线。

    Dynamic network topology determination
    2.
    发明授权
    Dynamic network topology determination 失效
    动态网络拓扑确定

    公开(公告)号：US5737319A

    公开(公告)日：1998-04-07

    申请号：US632200

    申请日：1996-04-15

    申请人： William D. Croslin ,  Mark W. Sees ,  Perry Voyles

    发明人： William D. Croslin ,  Mark W. Sees ,  Perry Voyles

    IPC分类号： H04L12/24 ,  G06F13/00

    CPC分类号： H04L41/12 ,  H04L41/0631

    摘要： A system and method for dynamically determining the physical connection topology between diverse network elements (DNEs) within a communication network. Each DNE is audited on a periodic basis to determine the arrangement, configuration, cross-connection, and alarm status of each communication port within each DNE in the communications network. A topology database is maintained with such baseline information. Each DNE is configured with at least one mismatched port. Mismatched ports are cross-connected with communication ports within DNEs so that signal mismatch alarms are generated by communication ports coupled with the mismatched ports in other DNEs. Signal mismatch alarms are collected and processed so that connectivity status may be derived based on the baseline data, expected alarms, and the receipt of such alarms or lack thereof. A topology database is continuously updated to reflect such derived information.

    摘要翻译： 一种用于动态地确定通信网络内的不同网元（DNE）之间的物理连接拓扑的系统和方法。 定期对每个DNE进行审核，以确定通信网络中每个DNE内每个通信端口的布置，配置，交叉连接和报警状态。 使用这些基准信息维护拓扑数据库。 每个DNE配置有至少一个不匹配的端口。 不匹配的端口与DNE内的通信端口交叉连接，使得通信端口与其他DNE中的不匹配端口相连，产生信号不匹配报警。 信号不匹配报警被收集和处理，以便可以基于基准数据，预期报警以及收到这种报警或缺少导出连接状态。 不断更新拓扑数据库以反映这些派生信息。

    Method of coordinating the respective operations of different restoration processes
    3.
    发明授权
    Method of coordinating the respective operations of different restoration processes 有权
    协调不同恢复过程各自操作的方法

    公开(公告)号：US06456589B1

    公开(公告)日：2002-09-24

    申请号：US09149590

    申请日：1998-09-08

    申请人： Jasvantrai C. Shah ,  Lee D. Bengston ,  Mark W. Sees ,  Sridhar Alagar ,  Bryan McGlade ,  Hal Badt

    发明人： Jasvantrai C. Shah ,  Lee D. Bengston ,  Mark W. Sees ,  Sridhar Alagar ,  Bryan McGlade ,  Hal Badt

    IPC分类号： G01R3108

    CPC分类号： H04L45/00 ,  H04L41/0654 ,  H04L45/22

    摘要： In a telecommunications network provisioned with different types of restoration processes, to ensure that the operation of one restoration process does not infringe upon other nodes that are actively executing a different restoration process, a request is sent by one of the restoration processes, under the guise of the operation system that oversees that process, to the operation system that oversees the other restoration process. The controller of the nodes that are performing the other restoration process, in receipt of the request, sends a disable restoration process message to those nodes under its control. Each of those nodes, upon receipt of the disable restoration process message, would disable the restoration process it is provisioned with so long as it is not actively engaging in that restoration process. If it is, it will continue to execute that restoration process until a safe stop point is reached, at which time it ceases that restoration process. Upon cessation of the particular restoration process, the node sends an acknowledge message to its controller, which, when in receipt of such acknowledge message from all of the nodes under its control, sends a disable acknowledged message to the controller of the first restoration process informing the latter that the nodes under its control can now be operated using the first restoration process. The above method is applicable to a telecommunications network provisioned with multiple layers of restoration processes including for example DRA, RTR and centralized restoration.

    摘要翻译： 在提供不同类型的恢复过程的电信网络中，为了确保一个恢复过程的操作不侵犯正在主动执行不同恢复过程的其他节点，请求由恢复过程中的一个以伪装方式发送 监督该过程的操作系统，涉及监督其他恢复过程的操作系统。 正在执行其他恢复过程的节点的控制器在接收到请求时，向其控制的那些节点发送禁用恢复过程消息。 在接收到禁用恢复处理消息之后，这些节点中的每一个都将禁用其被提供的恢复过程，只要其没有主动参与该恢复过程。 如果是这样，它将继续执行恢复过程，直到达到安全停止点，此时停止恢复过程。 在停止特定恢复过程时，节点向其控制器发送确认消息，当其在其控制下的所有节点接收到这种确认消息时，向第一恢复过程的控制器发送禁用确认消息，通知 后者现在可以使用第一恢复过程来操作其控制下的节点。 上述方法适用于提供多层恢复处理的电信网络，包括例如DRA，RTR和集中恢复。

    Automated path verification for SHN-based restoration
    5.
    发明授权
    Automated path verification for SHN-based restoration 失效
    基于SHN的恢复的自动路径验证

    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。