In order to maintain the alarm performance of the optical layer, it is necessary to ensure that the optical fibers on the network element side are connected correctly, so that the alarm performance…

In order to maintain the alarm performance of the optical layer, it is necessary to ensure that the optical fibers on the network element side are connected correctly, so that the alarm performance management in the corresponding OTS, OMS, and OCh paths can be realized, regardless of the logical fiber connection on the network management side.