Virtual Geek

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$vCenterServer = 'dccomics.vcloud-lab.com'
$vCenterUsername = '[email protected]'
$vCenterPassword = 'Computer@123'

$new_vSwitchName = 'vSwitch1'
$new_PortGroupName = 'Green_LAN_trunk_Nesting'

Import-Module VCF.PowerCLI

Write-Host '- Login vCenter: $vCenterServer'
Connect-VIServer -Server $vCenterServer -User $vCenterUsername -Password $vCenterPassword | Out-Null

Write-Host '- Get list of ESXi Server'
$vmHosts = Get-VMHost
foreach ($vmHost in $vmHosts)
{
    Write-Host "- ESXi: $($vmHost.Name) - Create SSwitch: $new_vSwitchName"
    $vSwitch1 = $vmHost | New-VirtualSwitch -Name $new_vSwitchName

    Write-Host "- ESXi: $($vmHost.Name) - Create Portgroup: $new_PortGroupName (VLAN 4095) on vSwitch"
    $vPortGroup = $vSwitch1 | New-VirtualPortGroup -Name Green_LAN_trunk_Nesting -VLanId 4095

    Write-Host "- ESXi: $($vmHost.Name) - Portgroup configuration: Green_LAN_trunk_Nesting - Security Policies to Allow Override"
    $portgroupName = $vPortGroup.Name
    $portgroupConf = New-Object VMware.Vim.HostPortGroupSpec
    $portgroupConf.VswitchName = $new_vSwitchName
    $portgroupConf.VlanId = 4095
    $portgroupConf.Name = $new_PortGroupName
    $portgroupConf.Policy = New-Object VMware.Vim.HostNetworkPolicy
    $portgroupConf.Policy.Security = New-Object VMware.Vim.HostNetworkSecurityPolicy
    $portgroupConf.Policy.Security.AllowPromiscuous = $true
    $portgroupConf.Policy.Security.ForgedTransmits = $true
    $portgroupConf.Policy.Security.MacChanges = $true
    #$portgroupConf.Policy.ShapingPolicy = New-Object VMware.Vim.HostNetworkTrafficShapingPolicy
    #$portgroupConf.Policy.NicTeaming = New-Object VMware.Vim.HostNicTeamingPolicy
    $vmHostNetworking = Get-View $vmhost.ExtensionData.ConfigManager.NetworkSystem
    $vmHostNetworking.UpdatePortGroup($portgroupName, $portgroupConf)
    #$vmHostNetworking.NetworkConfig.Vswitch | Where-Object {$_.Name -eq 'vSwitch1'}
}

Write-Host '- Logout vCenter: $vCenterServer'
Disconnect-VIServer -Server * -Confirm:$false