Enabling or disabling the maintenance mode on a controller

You can enable maintenance mode on the controller when performing maintenance work related to the SD-WAN network to minimize the impact of the controller on parts of the SD-WAN network that are not affected by the maintenance work. In maintenance mode, the controller monitors the status of the SD-WAN network, but does not take any action when the parameters of the SD-WAN network change. For example, in maintenance mode the controller does not rebuild links and paths, does not rewrite MAC addresses of service interfaces, or change transport services.

When you disable maintenance mode, the controller performs actions corresponding to the changes you made to the parameters of the SD-WAN network.

To enable or disable maintenance mode on the controller:

1. In the menu, go to the Infrastructure section.

   This opens the resource management page. By default, the Network resources tab is selected, which displays the table of controllers.

2. Do one of the following:
   • If you want to enable maintenance mode on the controller, click Management → Enable maintenance next to it.
   • If you want to disable maintenance mode on the controller, click Management → Disable maintenance next to it.

Maintenance mode is enabled or disabled on the controller.

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