公开(公告)号：US06272107B1

公开(公告)日：2001-08-07

申请号：US09076686

申请日：1998-05-12

申请人： Haim Rochberger ,  David Keynan

发明人： Haim Rochberger ,  David Keynan

IPC分类号： G01R3108

CPC分类号： H04L49/309 ,  H04L12/5601 ,  H04L2012/5627 ,  H04L2012/563 ,  H04L2012/5631

摘要： A method of path restoration in an ATM network which attempts to minimize the loss of cells in the event a node or a link fails. The method is suitable for failures in point to point Switched Virtual Circuits (SVCs) in ATM networks and makes use of the bi-directional properties of point to point SVC calls. The method permits the construction of an ATM network which includes call path redundancy whereby if a node or link fails, another path meeting the requirements of the call (if one exists) will be used on an automatic basis. The alternative or redundant path is placed into service in such a way that the flow of data is substantially constant. The switching of the path occurs with almost no data loss and without the overhead time associated with Q.SAAL based detection and signaling.

摘要翻译： 在ATM网络中的路径恢复方法，其尝试在节点或链路发生故障的情况下最小化小区的丢失。 该方法适用于ATM网络中点对点交换虚电路（SVC）的故障，并利用点对点SVC呼叫的双向属性。 该方法允许构建包括呼叫路径冗余的ATM网络，由此如果节点或链路出现故障，则将自动地使用满足呼叫要求的另一路径（如果存在）。 替代或冗余路径以数据流大致恒定的方式投入使用。 路径的切换几乎没有数据丢失，没有与基于Q.SAAL的检测和信令相关的开销时间。