Configuring controller nodes of an SD-WAN instance

When configuring controller nodes of the SD-WAN instance, you can change their IP addresses and TCP port numbers. This automatically changes the IP addresses and TCP port numbers of controller nodes on all CPE devices that are added to the SD-WAN instance. If SD-WAN interfaces of the WAN type of the CPE device are connected to different networks, for example, the internet and a private MPLS network, you can change the IP addresses and TCP port numbers of controller nodes on individual SD-WAN interfaces of the WAN type when you create or edit SD-WAN interfaces of the WAN type. The IP addresses and TCP port numbers specified on an individual SD-WAN interface of the WAN type take precedence over the IP addresses and TCP port numbers specified when configuring the controller nodes of the SD-WAN instance.

If you deployed multiple controller nodes when you deployed the SD-WAN instance, you can specify which controller node is the arbiter node while configuring the controller nodes of the SD-WAN instance. When an arbiter node is specified in the orchestrator web interface, CPE devices do not establish management sessions with that controller node, which reduces the load on the CPE devices.

After configuring the controller nodes of the SD-WAN instance, to apply the changes, you must restart the CPE devices that already have been registered.

To configure controller nodes of an SD-WAN instance:

  1. In the menu, go to the SD-WAN → SD-WAN instances section.

    A table of SD-WAN instances is displayed.

  2. Click the SD-WAN instance whose controller nodes you want to configure.

    The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Configuration tab is selected, which displays general information about the SD-WAN instance.

  3. If necessary, do one of the following:
    • If you want to change the IP address of a controller node, in the IP address field, enter an IPv4 address. The number of fields corresponds to the number of controller nodes.
    • If you want to change the TCP port number of a controller node, in the Port field, enter the number of the base port. Range of values: 1 to 65,535. Default value: 6653. The number of fields corresponds to the number of controller nodes.

      Along with the base port of the controller node, ports with the next three consecutive numbers are automatically specified. For example, if you enter the 6653 as the base port number, ports 6654, 6655, and 6656 are automatically specified.

    • If you want to specify an arbiter node, select the Arbiter check box next to the controller node. You cannot specify an arbiter node if you deployed only one controller node while deploying the SD-WAN instance.
  4. In the upper part of the settings area, click Save to save the settings of the SD-WAN instance.
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