Product Documentation

Multi region deployment

An SD-WAN appliance configured as Master Control Node (MCN) supports multi-region deployment. The MCN manages multiple Regional Control Nodes (RCNs). Each RCN, in turn, manages multiple client sites. The MCN can also be used to manage some of the client sites directly.

With MCN as the control node of the network and RCNs as the control nodes of the regions, SD-WAN can manage more than 2,500 sites.

This enables you to fragment network into regions and set up a tiered network; such as branch (client) > RCN > MCN.

An MCN with single region can be configured with maximum of 550 sites. You can keep the existing sites in the default region and add new regions with RCNs and their sites for multi-region deployment.

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The table below provides list of platforms supported for configuring primary and secondary MCN/RCN.

Platform Edition Primary/Secondary MCN Primary/Secondary RCN
210-SE No  No
400-SE Yes  No
410-SE Yes No
1000-SE, 1000-EE (Premium edition) Yes No
VPX-SE, VPXL-SE Yes Yes
2000-SE, 2100-SE, 2000-EE (Premium edition), 2100-EE (Premium edition), 4000-SE, 4100-SE, 5100-SE Yes Yes

To configure multi-region deployment for an SD-WAN network:

  1. Navigate to the Global tab in the Configuration Editor. Select Regions. The default region configuration options are displayed.

    You can change the name and description for the default region by editing it.

  2. Click + Add to add a new region.

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  3. Enter a Name and Description for the region.

  4. Enable Interval VIP matching based on whether you want Forced Internal VIP Matching or Allow External VIP Matching.

    • Forced Internal VIP: When enabled, all non-private Virtual IP addresses in the Region are forced to match the configured subnets.

    • Allowed External VIP - When enabled, non-private Virtual IP addresses from other regions is allowed to match the configured subnets.

  5. Click + to add subnets. Choose a routing domain.

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  6. Enter a Network address. Click Add. This is the IP address and mask for the subnet. The newly created region is added to the existing list of regions.

    You can select the Default checkbox to use a desired region as the Default.

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    Note

    You can clone MCN to a GEO or client site.

SD-WAN Center supports multi-region deployment. For more information, see SD-WAN Center Multi-Region Deployment and Reporting.

Change management summary view

When you perform Change Management process for appliances configured in multi-region deployment, the change management summary table is displayed in the SD-WAN appliance GUI.

The Region column displays a list of regions currently configured in the network. You can view change management summary for specific region by selecting it in the summary table.  

Default region summary:

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Region Summary:

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Note

In some instances, the Total Sites value displayed in the Global Multi-Region Summary table is less than the sum of the remaining columns. For example,. When a branch node is not connected, it is possible that the branch is counted twice; once as “Not Connected” and once as “Preparing/Staging.”

Multi region deployment