Configuration Guide for Cisco Optical Site Manager, IOS XR Release 26.x.x

Configure thresholds for SONET or SDH

Updated: October 14, 2026

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Use this procedure to configure thresholds for SONET or SDH. This task helps you complete the required configuration, verification, or management action in Cisco Optical Site Manager.

Configure threshold settings for SONET or SDH payload ports (OC192, STM64) to monitor performance and to maintain network integrity.

Perform this configuration on supported line cards (e.g., OTN XP, ADM-10G, MXP, and transponders) to enable performance monitoring.

This functionality is supported on Slice-0 of the 40x10 HM configuration of the MXP-40X10G-4X100G card mode.

Before you begin

Follow these steps to provision SONET or SDH thresholds for OC192 and STM64 payload ports on the OTN XP card.

Procedure

Click the Provisioning tab.
Perform one of the following steps:
- Click the SONET Trace Monitoring section to provision thresholds for SONET.
- Click the SDH Trace Monitoring section to provision thresholds for SDH.
Select the interval of the threshold to 15 Min or 24 Hour.
Click the plus icon to add a new SONET or SDH threshold.

The New SONET/SDH Threshold dialog is displayed.
Select the required details in the New SONET/SDH Threshold dialog box as described in the Table 1 table.
Click Apply.

The system applies the configured thresholds to generate alarms or notifications when performance metrics exceed defined limits, facilitating proactive network management and fault detection.

Table 1. New SONET/SDH Threshold Dialog
Field	Description	Valid Values
TCA Types	Select the interface name.	—
Interface	Select the interface name.	—
Granularity	Sets the threshold for intervals of either 15 minutes or 24 hours.	15min 24Hour
Direction	Sets the direction.	ES SES UAS EB SEFS
Location	Sets the low threshold value.	—
PM Type	Sets the PM type.	—
PM Type Extension	Sets the PM type extension.	—
Threshold Value	Sets the threshold value.	—

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