Microsoft Exchange Server 2016 PowerShell Cookbook - Fourth Edition

How it works...

When you create a DAG, Exchange will automatically discover the existing network connections on each server and create a DAG network for the corresponding IP subnet. Although there is a cmdlet called New-DatabaseAvailabilityGroupNetwork, you would rarely need to use it, as this is generally done automatically.

If you need to force Exchange to rediscover the DAG network configuration after changes have been made, you can use the Set-DatabaseAvailabilityGroup cmdlet:

    Set-DatabaseAvailabilityGroup DAG -DiscoverNetworks  

Simply provide the name of the DAG and use the -DiscoverNetworks switch parameter to indicate that Exchange should search for changes in the network configuration.