A quick powershell script to add a new VM Network to an existing ESX Cluster.
Connect-VIServer vsphere.example.com $Cluster = (Read-Host "Enter cluster name") $vSwitch = (Read-Host "Enter vSwitch to add the port group to") $PortGroup = (Read-Host "Enter vmNetwork name") $vLANPortGroup = (Read-Host "Enter vmNetwork vLAN number") Get-Cluster $Cluster | Get-VMHost -State "Connected" | Get-VirtualSwitch -Name $vSwitch | New-VirtualPortGroup -Name $PortGroup -VLanId $vLANPortGroup