VNet and subnets

When registering an Azure environment in CDP, you will be asked to select a VNet and one or more subnets.

You have two options:

  • Use your existing VNet and subnets for provisioning CDP resources.
  • Have CDP create a new VNet and subnets. All CDP resources will be provisioned into this new VNet and subnets.

Existing VNet and subnets

If you would like to use your own VNet, it needs to fulfill the following requirements:

Verify the limits of the VNet and subnets available in your Azure subscription to ensure that you have enough resources to create clusters in CDP.

VNets can be created and managed from the Azure Portal > Virtual Networks. For detailed instructions on how to create a new VNet on Azure, refer to Create a virtual network using the Azure portal in Azure documentation.  

New VNet and subnets

If you would like CDP to create a new VNet, you will need to specify a valid CIDR in IPv4 range that will be used to define the range of private IPs for VM instances provisioned into these subnets. Default is 10.10.0.0/16. Consider changing the IP range to correspond to corporate policies for standardized IP address ranges. The CIDR must match the <network mask>/16 pattern.

By default CDP creates more than 30 subnets and divides the address space as follows:

  • 32 x /24 private subnet for ML and CDE
  • 3 x /19 private subnet for DW
  • 3 x /19 private subnet for Data Lake and Data Hub
  • 3 x /24 public subnet

You can disable creating private subnets, in which case only 3 public subnets will be created.

For more information about VNet and subnets, refer to the following VNet and subnet planning documentation: