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

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

Provision ODU interfaces

Updated: October 14, 2026

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Use this procedure to provision ODU interfaces. This task helps you complete the required configuration, verification, or management action in Cisco Optical Site Manager.

To ensure proper operation and monitoring of the ODU layer in the optical transport network, configure the ODU settings on optical line cards. Adjust these settings to manage signal quality, set error thresholds, and control client interface behavior.

Set parameters for ODU interfaces, such as Signal Fail Bit Error Rate (SF BER), Signal Degrade Bit Error Rate (SD BER), squelch mode (which controls laser behavior on signal loss), and squelch hold-off time.

Before you begin

Follow these steps to modify the ODU settings of a card.

Procedure

  1. Click the Provisioning tab.

  2. Click the ODU Interfaces section to expand it.

  3. Modify required settings as described in the Table 1table.

    Table 1. ODU Interface Settings

    Parameter

    Description

    Options

    Port

    (Display only) Displays the port name.

    —

    Description

    Displays the description of the port.

    —

    SF BER

    Sets the signal fail (SF) bit error rate (BER).

    Only 1E-5 is allowed.

    SD BER

    Sets the signal degrade (SD) bit error rate (BER).

    • 1E-5

    • 1E-6

    • 1E-7

    • 1E-8

    • 1E-9

    Squelch Mode

    When a LOS is detected on the near-end client input, the far-end client laser is turned off. It is said to be squelched.

    Alternatively, an AIS can be invoked.

    The OTU2-XP card supports Squelch Mode parameter when the card mode is set as Regenerator. The valid values are Squelch and AIS. When the card mode is set to Transponder or Mixed, the Squelch Mode cannot be changed and the parameter defaults to the Squelch value.

    • Squelch

    • AIS

    SquelchHold Off Time

    Sets the period in milliseconds that the client interface waits for resolution of issues on the trunk side. The client squelching starts after this period.

    • Disable

    • 50 ms

    • 100 ms

    • 250 ms

    • 500 ms

    Service State

    Displays the service state.

    —

    Rate

    Displays the rate.

    —

  4. Click Apply.

After you provision the ODU interfaces with the desired signal thresholds and squelch behavior, you can monitor and handle signal degradation or failure more effectively.