Now, we have sites and site links set up. The next step is to assign the subnets to each site. This can be set up using the New-ADReplicationSubnet cmdlet:

New-ADReplicationSubnet -Name "192.168.0.0/24" -Site LondonSite

The preceding PowerShell command will create new subnet, 192.168.0.0/24, and will assign it to LondonSite.

Using Set-ADReplicationSubnet, we can change value of the existing subnet:

Set-ADReplicationSubnet -Identity "192.168.0.0/24" -Site CanadaSite

The preceding command will change the site of the 192.168.0.0/24 subnet into CanadaSite.

We can use the Get-ADReplicationSubnet cmdlet to find the subnet data:

Get-ADReplicationSubnet -Filter {Site -Eq "CanadaSite"}

The preceding command will list all the subnets under CanadaSite: