ATM PROTECTION TRIGGERING METHOD USING AIS

摘要

The present invention relates to an ATM protection triggering method using a received alert indication signal (AIS) flag for effective fault location determination in an ATM network in which protection areas are sequentially or overlapping. If the node that detects the failure alert signal of the broken link generates a 'end-to-end AIS cell' and transmits it in a downward direction, the 'end-to-end AIS cell' passes. After the start node of the zone handles the 'receive AIS flag' and the end node of the protection zone that receives the 'end-to-end AIS cell' generated from the upward direction, it processes the 'end-to-end AIS cell', CRC-10 calculation by providing a cell reception report and an ATM protection triggering method using the 'receive AIS flag' in which the starting node of the protection area operates the protection switch. There is an effect that can solve the compatibility problem.