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Configure Path Selection from Hub-to-Spoke with Traffic Steering

Juniper Mist™ allows you to influence path selection for traffic going from hub-to-spoke. This comes in handy when you have multiple spokes that the hub is trying to reach and you want to have granular control over which spoke interface traffic will arrive on. This configuration gives you full path control in both directions.

To configure Hub-to-Spoke Traffic Steering:

  1. From the Mist portal, navigate to Organization > Hub Profiles and select the appropriate Hub Profile.
  2. Select the WAN interface that you want to define the logical spoke endpoints for.
  3. In the Edit WAN Configuration panel, under HUB TO SPOKE ENDPOINTS,
    1. Notice that the Default Endpoint has automatically been defined for you. This represents the endpoints you are connecting to on the hub.
    2. Define your Custom Endpoints in the field to the right to specify the spokes that you want traffic to arrive on. Configure as many as necessary by clicking Add Hub to Spoke Endpoints (SSR Only).

  4. Select Save at the bottom of the Edit WAN Configuration panel.
  5. Scroll down to TRAFFIC STEERING and select the Overlay traffic steering policy.
  6. In the Edit Traffic Steering panel, select Add Paths. Keep the defaulted Type as Overlay, then under Name, select the name of the first hub-to-spoke endpoint you created in step 3 (Example: Hub-wan1-SpokeWan1).

    1. Select the blue checkmark to save the path.
    2. Select Add Paths again and keep the defaulted Type as Overlay. Then, in the Name field, select the name of the second hub-to-spoke endpoint you created in step 3 (Example: Hub-wan1-SpokeWan2). Continue adding paths as needed.
    3. Click Save at the bottom of the panel, then click Save in the top right corner of the Hub Profile.

    You must now configure this on the spoke in order to accomplish hub-to-spoke traffic steering from end to end.

  7. Navigate to Organization > WAN Edge Templates and select your spoke template.
  8. On your spoke, select the appropriate WAN configuration (Example: WAN1), then in the Edit WAN Configuration panel, under OVERLAY HUB ENDPOINTS, select the Endpoint that corresponds with the WAN configuration you have selected (Example: Hub-wan1-SpokeWan1) to indicate that you are using this overlay endpoint to make the connection between hub and spoke. Click Save.

  9. Select the second WAN configuration (Example: WAN2) and then set the corresponding endpoint (Example: Hub-wan1-SpokeWan2). Click Save.

    In the WAN tile, in the OVERLAY HUB ENDPOINTS column, you can see the endpoints you configured which indicate how you want your spokes to connect to the hub.

  10. Scroll down to the TRAFFIC STEERING, select the Overlay traffic steering policy that you want to configure the path preferences on.
  11. In the Edit Traffic Steering panel, select Add Paths.
  12. Keep the defaulted Type as Overlay, then under Name, select the name of the first hub-to-spoke endpoint you created (Example: Hub-wan1-SpokeWan1).
    1. Select the blue checkmark to save the path.
    2. Select Add Paths again and keep the defaulted Type as Overlay. Then, in the Name field, select the name of the second hub-to-spoke endpoint you created (Example: Hub-wan1-SpokeWan2). Continue adding paths as needed.
      Note:

      The order of path preference depends on what you configure for a Traffic Steering Strategy. You can configure a Strategy of Ordered, Weighted, or Equal-cost Multipath (ECMP). See Configure Traffic-Steering Policies.
    3. Click Save at the bottom of the panel, then click Save in the top right corner of the WAN Edge Template.
Note:

To accomplish the above behavior for spoke to hub traffic, simply configure Traffic Steering on the spoke.

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