公开(公告)号：EP1863213A1

公开(公告)日：2007-12-05

申请号：EP05721273.0

申请日：2005-03-22

申请人： Media Global Links Co., Ltd.

发明人： MATSUSHIMA, Hiroaki, Media Global Links Co., Ltd. ,  HAYASHI, Eiichi, Media Global Links Co., Ltd. ,  MORITA, Takaaki, Media Global Links Co., Ltd.

IPC分类号： H04L1/22 ,  H04L29/14

CPC分类号： H04L1/22 ,  H04L41/0663 ,  H04L41/0677

摘要： In switching by failure, no switching is performed when a packet of IP packet is lost or a packet has not arrived even when a predetermined time has elapsed, which are not recognized as a failure. There is provided a duplicate transmission path switching device for flowing packets having the same information configuration to a main transmission path and an auxiliary transmission path. The device includes: a transmission failure monitoring unit for monitoring a transmission failure of the main transmission path; a switching acquisition unit arranged at the downstream of the transmission failure monitoring unit capable of acquiring a packet from the main transmission path during a normal mode, and switching to the auxiliary transmission path to acquire a packet from the auxiliary transmission path in a predetermined mode; and a switching command output unit used when the monitoring result shows that a transmission failure is present, for outputting a switching command capable of switching to the auxiliary transmission path before the transmission failure reaches the switching acquisition unit, to the switching acquisition unit.

摘要翻译： 在故障切换中，即使经过了预定时间，也不会发生IP分组丢失或分组未到达切换，不能识别为故障。 提供了一种用于将具有相同信息配置的分组流向主传输路径和辅助传输路径的重复传输路径切换装置。 该装置包括：传输故障监视单元，用于监视主传输路径的传输故障; 布置在传输故障监视单元的下游的切换获取单元，其能够在正常模式期间从主传输路径获取分组，并且以预定模式切换到辅助传输路径以从辅助传输路径获取分组; 以及当所述监视结果表示存在传输故障时用于在所述传输故障到达所述切换获取单元之前输出能够切换到所述辅助传输路径的切换命令的切换命令输出单元。