The Overlay Flow Control page displays a summarized view of all the routes in your network.

To configure the Overlay Flow Control settings with New Orchestrator UI:

  1. In the Enterprise portal, click the Open New Orchestrator UI option available at the top of the Window.
  2. Click Launch New Orchestrator UI in the pop-up window.
  3. The UI opens in a new tab displaying the monitoring and configuring options.

In the new UI, click Configure > Overlay Flow Control and you can configure the following settings:

Refresh Routes – For IPv4, this option is available only when the Distributed Cost Calculation feature is enabled by Operator. For IPv6, Distributed Cost Calculation is enabled by default. The Operator cannot turn off this feature for IPv6.

Type YES and then click Refresh Routes which makes the Edges and Gateways to recalculate learned route costs and send them to the Orchestrator. In addition, the changes in the Overlay Flow Control are applied immediately on the new and existing learned routes. For more information, see Overlay Flow Control.

VRF Global Routing Preferences – This option enables you to edit the global routing preferences, advertise actions, and modify the priorities of the destinations to where the traffic should be routed.

  • Click Preferred VPN Exits to prioritize the VPN Exits.

    Click Edit and use the UP and DOWN arrows to modify the priorities.

  • In the Global Advertise Flags section, select the relevant checkboxes to modify the advertise actions for the routes.

Routes List – This section displays the learned routes in the subnets. You can click the IPv4 or IPv6 tab to view the corresponding subnets. The following image shows IPv6 subnets.

For more information on the subnets, see Configure Subnets.

Select one or more subnets to perform the following activities:

  • Edit Subnet – Modify the preferred destinations and prioritize them.
  • Pin Learned Route Preference – Pins the preferences of the selected learned route.
  • Reset Learned Route Preference – Resets the preference of the selected learned route to default settings.
  • Delete Learned Routes – Deletes the learned routes. This option does not delete the connected routes, static routes, routes from Overlay Flow Control, and routes from Edge Route table. The option is available for IPv4, only when Distributed Cost Calculation is turned off. This option is not supported for IPv6.

When you click Edit Subnet, the following window appears:

In the Subnet window, you can move the destinations from the Eligible VPN Exits to Preferred VPN Exits and vice versa. In the Preferred VPN Exits panel, click the UP and DOWN arrows to change the priorities and click Update.

You can reset the cost calculation for the subnets when there are pinned routes available. Click Reset, which enables the Orchestrator to clear the pinned routes, recalculate the cost for the selected subnet based on the policy, and send the results to the Edges and Gateways.

Note: For IPv4 Routes, the Reset option is available only when Distributed Cost Calculation is enabled.