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Typical Configuration Examples

SD-WAN V100R018C00

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Changing Single-CPE Single-Link (MPLS) Networking to Dual-CPE Dual-Link (MPLS and Internet) Networking

Changing Single-CPE Single-Link (MPLS) Networking to Dual-CPE Dual-Link (MPLS and Internet) Networking

Related Products

Agile Controller-Campus: V300R003C00

AR: V300R003C00

Networking Requirements

One CPE is deployed at the hub site (Hub1) of an enterprise as the gateway and it connects to a WAN through an MPLS link, as shown in Figure 3-1. The enterprise wants to add an Internet link to change the single-device single-link (MPLS uplink) networking to dual-device dual-link (MPLS and Internet Uplinks) networking. Figure 3-2 shows the networking diagram after the change.

Figure 3-1 Networking before the change
Figure 3-2 Networking after the change

Solution Design

The configuration roadmap is as follows:

  1. Delete the branch sites and then the hub site.
  2. Add a new CPE, create a hub site and two branch sites, and complete the service configuration.
  3. Perform the deployment operations for the site to which a new CPE is added. After the new CPE is deployed, the CPE automatically obtains the modified configuration from the Agile Controller-Campus. CPEs at other sites automatically obtain the modified configuration from the Agile Controller-Campus after going online.

Figure 3-3 shows the detailed operation flowchart.

Figure 3-3 Operation flowchart

Procedure

  1. Log in to the Agile Controller-Campus as a tenant administrator.
  2. Delete the service configurations of the hub and branch sites.

    The sites to be deleted cannot be associated with any traffic distribution policy, Internet access policy, or legacy site mutual access policy and cannot be added to any VPN. Otherwise, the deletion fails.

    1. Delete the Internet access policy configured for the sites.
      1. Choose Configuration > Traffic Policy.
      2. Choose Overlay > Site-to-Internet and disable Centralized Internet access and Local Internet access.
      3. Click Apply Changes.
    2. Delete the legacy site mutual access policy configured for the sites.
      1. Choose Configuration > Traffic Policy.
      2. Choose Overlay > Site-to-Legacy Site and disable Centralized access and Local access.
      3. Click Apply Changes.
    3. Delete the traffic distribution policies bound to the sites.
      1. Choose Configuration > Overlay Network > Traffic Distribution.
      2. Select all traffic distribution policies and click Delete.
    4. Delete the sites from a custom VPN.
      1. Choose Configuration > Overlay Network > VPN.
      2. On the VPN page that is displayed, click in the Operation column next to each VPN. In the displayed dialog box, select all the sites and click to remove the sites from the VPN.
      3. Click OK.

  3. Delete the hub site and branch sites.

    1. Choose Configuration > Site.
    2. Select all the sites and click Delete.
    3. Click OK.

  4. Add a CPE and recreate a hub site and two branch sites. For details, see section Example for Building an SD-WAN Network for an Enterprise Tenant.
  5. Install the CPEs at the hub site based on the site networking requirements and connect the WAN ports of the CPEs to the networks.

    In this example, the CPE deployment configurations of the hub site and Site2 are changed. Therefore, you need to re-deploy the CPEs at the two sites. For the branch sites where the deployment configuration remains unchanged, the CPEs automatically register with the Agile Controller-Campus using the original deployment configuration. Then, the Agile Controller-Campus can manage these CPEs.

  6. Deploy the CPEs at the hub site and Site2 using email-based deployment.

    1. Power on the CPEs.
    2. Wait for a moment until the SYS indicator on the CPEs is blinking green slowly, indicating that the CPEs have started successfully.
    3. Perform email-based deployment according to section Email-based Deployment.

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Updated: 2019-03-04

Document ID: EDOC1100036696

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