公开(公告)号：US20050198312A1

公开(公告)日：2005-09-08

申请号：US10744838

申请日：2003-12-23

申请人： Peter Ashwood-Smith ,  Darek Skalecki ,  James Sheilds ,  Antonela Paraschiv

发明人： Peter Ashwood-Smith ,  Darek Skalecki ,  James Sheilds ,  Antonela Paraschiv

IPC分类号： G06F15/16

CPC分类号： H04L41/0659 ,  H04L45/24 ,  H04L45/28

摘要： A method and system for resynchronizing a control layer and a line layer by tracing the data path through the line layer and, at the control layer, reclaiming ownership of disowned connections corresponding to the traced data path. Beginning at a head-end controller, the data path is traced by identifying the next controller along the data path and sending a set-up message containing the local state information necessary for a second controller to identify the connection within its associated network element that is associated with the data path. The second controller receives the set-up message and claims ownership of its portion of the data path. It then identifies the next leg or hop in the data path, modifies the set-up message to add data regarding the next hop, and sends the modified set-up message to the next controller along the data path. The process is repeated so as to dynamically establish a control connection corresponding to and synchronized with the existing data path.

摘要翻译： 通过跟踪通过线路层的数据路径，并且在控制层，回收对跟踪的数据路径的未知连接的所有权，来重新同步控制层和线路层的方法和系统。 从头端控制器开始，通过沿着数据路径识别下一个控制器来跟踪数据路径，并发送包含第二控制器所需的本地状态信息的建立消息，以识别其相关网络元件内的连接 与数据路径相关联。 第二控制器接收建立消息并声明其部分数据路径的所有权。 然后，它识别数据路径中的下一个分支或跳跃，修改建立消息以添加关于下一跳的数据，并且将修改的建立消息沿着数据路径发送到下一个控制器。 重复该过程，以动态地建立与现有数据路径相对应并与其同步的控制连接。