Cisco NCS 1010 Optical Applications Configuration Guide, IOS XR Release 25.x.x

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Switch between APC modes

Updated: February 5, 2026

Overview

Use this procedure to switch between centralized and span modes of APC on network nodes. This helps to reconfigure APC operation when you update network topology or operational requirements.

Procedure

1.

Switch from centralized APC to span mode APC.

  1. Configure APC in manual mode on the OLT nodes.

  2. Configure apc-span-mode on all nodes.

  3. Initiate ALC and wait for the ALC process to complete.

    After saving the ALC baseline, APC switches to span mode.
2.

Switch from span mode APC to centralized APC using one of these methods:

  • commit replace

    1. Reset all the nodes to their default configuration by using the commit replace command.

    2. Reload all the nodes.

    3. Configure the nodes with the required settings for link bringup.

    4. Configure automatic link bringup or enable APC.

    APC starts regulation in centralized mode.

  • no configuration of optical applications

    1. Remove the optical applications configurations by using the no form of APC, link tuner, and gain estimator.

    2. Configure the nodes with required configuration for link bring up.

    3. Configure automatic link bringup or enable APC.

    APC starts regulation in centralized mode.