PROTECTION SWITCHING METHOD AND APPARATUS FOR MINIMIZING DATA LOSS IN OPTICAL TRANSPORT NETWORK SYSTEM

摘要

Provided is a linear automatic protection switching (APS) apparatus and method that minimizes a data loss in an optical transport network (OTN) system, the apparatus and method that may maintain time synchronization by transmitting/receiving time synchronization signals between APS apparatuses of a working path and a redundant path, and transmitting/receiving time synchronization signals between local and remote APS apparatuses.

主权项

1. A linear automatic protection switching (APS) apparatus in an optical transport network (OTN) system, the apparatus comprising:
a receiver configured to receive signal defect information of a first transmission medium belonging to a redundant path and a second transmission medium belonging to a working path, and command information of an operator; a controller configured to generate a switching command to change traffic paths of the first transmission medium and the second transmission medium and switching information corresponding to the switching command based on the signal defect information and the command information, and determine a switching over time to execute the switching command; and a transmitter configured to transmit the switching command and the switching over time.