vNIC to physical NIC mapping in an Active-Active vSwitch

[SabinaZ]

Can anyone suggest a way to tell what virtual NIC is connected to which physical NIC when they are teamed in an Active-Active vSwitch (besides comparing the MAC addresses)?

[LucD · Accepted solution]

Afaik, the easiest way to do that is to use the Config.Network property of the HostSystem object which points to a HostNetworkInfo object.

This script list the Vswitches (and their active and standby NICs) and all the portgroups with their active and standby NICs.

$esxName = "mmmstv001.muac.corp.eurocontrol.int"
$esx = Get-VMHost $esxName | Get-View

foreach($vswitch in $esx.Config.Network.Vswitch){
  Write-Host "Vswitch" $vswitch.Name -ForegroundColor red
  Write-Host "`tActive NICs"
  foreach($actNic in $vswitch.Spec.Policy.NicTeaming.NicOrder.ActiveNic){
    Write-Host "`t" $actNic
  }
  Write-Host "`tStandby NICs"
  foreach($sbyNic in $vswitch.Spec.Policy.NicTeaming.NicOrder.StandbyNic){
    Write-Host "`t" $sbyNic
  }
  foreach($pg in $esx.Config.Network.Portgroup){
    if($pg.Spec.VswitchName -eq $vswitch.Name){
	  Write-Host "`t`t" $pg.Spec.Name -ForegroundColor blue
  	  Write-Host "`t`tActive NICs"
	  foreach($actNic in $pg.Spec.Policy.NicTeaming.NicOrder.ActiveNic){
    	Write-Host "`t`t`t" $actNic
	  }
  	  Write-Host "`t`tStandby NICs"
	  foreach($sbyNic in $pg.Spec.Policy.NicTeaming.NicOrder.StandbyNic){
    	Write-Host "`t`t`t" $sbyNic
	  }
	}
  }
}

Since I don't know in which format you wanted the output, I wrote the data to the console.

Note that if there are no active and/or standby NICs listed for a portgroup, that this portgroup takes NIC binding and NIC order of the Vswitch.

[SabinaZ]

thanks LucD! we're going to try this