Technical information

Cuda 12000 IP Access Switch CudaView Administration Guide
237
Viewing SONET Path Layer Information
The Path layer is responsible for mapping the data to be transported into the
synchronous payload envelope (SPE) of the SONET frame. It creates the STS-1
SPE and passes it to the line layer.
You can view Path-layer performance information for a selected POS
interface. This information includes defects and error statistics to provide an
assessment of Path layer operation. To view the Path-layer information,
follow this procedure:
1. In the Summary window, select the interface that you wish to view.
2. Select the Path tab.
3. Click Refresh to update the information.
4. Click Clear Counters to restart the statistics counters.
Line Alarm
Indication Signal
Detections (LAIS)
Number of times a Line Alarm Indication Signal has been
detected. A LAIS occurs if the 3 LSBs of K2 are received as
'111' for 5 consecutive frames
Line Remote
Defect Indication
Detections (LRDI)
Number of times a Line Remote Defect Indication has been
detected. A LRDI occurs if the 3 LSBs of K2 are not received
as '110' for 5 consecutive frames.
Rx K1 (Hex) K1 byte received in last packet.
Rx K2 (Hex) K2 byte received in last packet.
Counter Description