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Create a mesh network topology with Azure Virtual Network Manager - Azure PowerShell

In this article, you'll learn how to create a mesh network topology with Azure Virtual Network Manager using Azure PowerShell. With this configuration, all the virtual networks of the same region in the same network group can communicate with one another. You can enable cross region connectivity by enabling the global mesh setting in the connectivity configuration.

Prerequisites

  • Read about mesh network topology.
  • Created a Azure Virtual Network Manager instance.
  • Identify virtual networks you want to use in the mesh configuration or create new virtual networks.
  • Version 5.3.0 of Az.Network is required to access the required cmdlets for Azure Virtual Network Manager.
  • If you're running PowerShell locally, you need to run Connect-AzAccount to create a connection with Azure.

Create a network group and add members

This section will help you create a network group containing the virtual networks you'll be using for the hub-and-spoke network topology.

  1. Create a network group for virtual networks with New-AzNetworkManagerGroup.

    $ng = @{
    Name = 'myNetworkGroup'
    ResourceGroupName = 'myAVNMResourceGroup'
    NetworkManagerName = 'myAVNM'
}
$networkgroup = New-AzNetworkManagerGroup @ng

  2. Add the static member to the static membership group with New-AzNetworkManagerStaticMember:

        $vnet = get-AZVirtualNetwork -ResourceGroupName 'myAVNMResourceGroup' -Name 'VNetA'
    $sm = @{
    NetworkGroupName = $networkgroup.name
    ResourceGroupName = 'myAVNMResourceGroup'
    NetworkManagerName = 'myAVNM'
    Name = 'staticMember'
    ResourceId = $vnet.id
    }
    $staticmember = New-AzNetworkManagerStaticMember @sm

Create a mesh connectivity configuration

This section will guide you through how to create a mesh configuration with the network group you created in the previous section.

  1. Create a connectivity group item to add a network group to with New-AzNetworkManagerConnectivityGroupItem.

    $gi = @{
    NetworkGroupId = $networkgroup.Id
}
$groupItem = New-AzNetworkManagerConnectivityGroupItem @gi

  2. Create a configuration group and add the group item from the previous step.

    [System.Collections.Generic.List[Microsoft.Azure.Commands.Network.Models.PSNetworkManagerConnectivityGroupItem]]$configGroup = @()
$configGroup.Add($groupItem)

  3. Create the connectivity configuration with New-AzNetworkManagerConnectivityConfiguration.

    $config = @{
    Name = 'connectivityconfig'
    ResourceGroupName = 'myAVNMResourceGroup'
    NetworkManagerName = 'myAVNM'
    ConnectivityTopology = 'Mesh'
    AppliesToGroup = $configGroup
}
$connectivityconfig = New-AzNetworkManagerConnectivityConfiguration @config

Deploy the mesh configuration

Commit the configuration to the target regions with Deploy-AzNetworkManagerCommit.

[System.Collections.Generic.List[string]]$configIds = @()  
$configIds.add($connectivityconfig.id) 
[System.Collections.Generic.List[string]]$target = @()   
$target.Add("westus")     

$deployment = @{
    Name = 'myAVNM'
    ResourceGroupName = 'myAVNMResourceGroup'
    ConfigurationId = $configIds
    TargetLocation = $target
    CommitType = 'Connectivity'
}
Deploy-AzNetworkManagerCommit @deployment

Confirm deployment

  1. Go to one of the virtual networks in the portal and select Network Manager under Settings. You should see the configuration listed on that page.

  2. To test connectivity between virtual networks, deploy a test virtual machine into each virtual network and start an ICMP request between them.

Next steps