Cisco Catalyst SD-WAN Multitenancy Guide, Releases 26.x and Later

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Cisco Catalyst SD-WAN Multitenancy Guide, Releases 26.x and Later

Replace faulty SD-WAN Controller

Updated: September 25, 2026

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Explains how to replace a faulty SD-WAN Controller by assigning a new controller instance, invalidating the faulty controller, and transferring tenant services to the replacement controller.

To replace a faulty SD-WAN Controller with a new instance, follow these steps:

Procedure

  1. Create a SD-WAN Controller instance.

  2. Add the SD-WAN Controller to the overlay network.

  3. From the Cisco SD-WAN Manager menu, choose Configuration > Devices.

  4. Click Controllers.

  5. For the faulty SD-WAN Controller, click ... and click Invalidate.

    The Invalidate dialog box appears.

    If you have not added a new SD-WAN Controller that can replace the faulty SD-WAN Controller, Cisco SD-WAN Manager indicates this through an error message. Click Cancel in the Invalidate dialog box and add a new SD-WAN Controller before invalidating the faulty instance.

  6. In the Invalidate dialog box, do the following:

    1. Check the Replace Controller check box.
    2. From the Select Controller drop-down list, choose the new SD-WAN Controller that should replace the faulty instance.
    3. Click Invalidate.

SD-WAN Manager launches the Invalidate Device and Push CLI Template Configuration task. When these tasks are completed, the faulty SD-WAN Controller is invalidated and removed from the overlay network.

The tenants that were served by the faulty SD-WAN Controller are now served by the new SD-WAN Controller that you chose as the replacement.