Product Documentation

Multi-Region Network Deployment

If your organization has a large network spanning multiple administrative (or geographical) boundaries, you can use SD-WAN Center in multi-region mode, with each region supporting a maximum of up to 550 sites.

The multi-region network supports a hierarchical architecture with a Master Control Node (MCN) controlling multiple Regional Control Nodes (RCNs). Each RCN, in turn, controls multiple client sites. The MCN can also be optionally used to control some client sites directly as part of the “default region”. This hierarchical and distributed architecture enables higher scale, and effective delegation of regional administration.

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The SD-WAN Center polls the MCN, RCNs and all the associated client sites.

The multi-region SD-WAN Center architecture requires addition of a collector per region, to collect and store region level data and statistics. This distributed architecture enables higher scale across multiple regions, while preserving the “single pane of glass” view for managing the entire network.

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To deploy SD-WAN Center for Multi-region:

  1. Download the NetScaler SD-WAN Center Software. For more information, see System requirements and Installation.

  2. Install the NetScaler SD-WAN Center on ESXi Server or XenServer

  3. Configuring the management interface settings. For more information, see Configuring the Management Interface Settings.

  4. Log-into the SD-WAN Center interface.

  5. Download the SSL Certificate from the SD-WAN Center VM and install it on the MCN appliance. For more information, see Installing the SD-WAN Center Certificate.

  6. In the SD-WAN Center GUI navigate to Configuration > Network Discovery > Discover Settings, and select Enable Multi-region mode.  

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  7. In the Master Controller Node MGT IP Address field, enter the MCN IP address and click Test. This establishes a connection between the MCN and SD-WAN Center.

  8. Click Discover Regions. A list of all the RCNs connected to the MCN appears in the Collector Configuration section.

    Note

    The SD-WAN Center acts a collector for the default region.

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  9. Click the edit icon and in the Collector IP field, enter the IP address of the SD-WAN Center that you want to configure as a collector for a region.

    Note

    To set up a collector, install a SD-WAN Center VM and configure the management IP address. The management IP address of that SD-WAN Center is the collector IP address.

  10. Click the Save icon to save the collector IP address and push the Certificate-Key pair to the RCN.

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  11. Enter the credentials for the RCN and click Push Certificate.

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  12. Similarly, configure collector IP address for all the RCNs.

  13. Select all the RCNs and click Discover.

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    After the Discovery Status changes to Done, you can view the discovered sites in the Inventory and Status Page.

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    Tip

    You can filter the sites based on the region name. In the Select Region field, select the region.

  14. In the Inventory and Status Page, select the sites that you want to start polling and click Apply.

Tip

You can increase the storage size of the collector by creating a data store on your virtual machine. For more information see, Switching the Active Storage to the New Data storage.

For Multi-region deployment, you can select specific regions to view event and statistic reports.

The events and statistic reports data is fetched from the respective region’s collector.

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Multi-Region Network Deployment

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