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

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Replace faulty SD-WAN Controller

Updated: June 21, 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 Tempalte 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.