VMware ESXi   CDP information via PowerCLI

1. Using PowerCLI, connect to the ESX host or vCenter Server:# Connect-VIServer esx-or-vc-hostname
2. Run this script in PowerCLI:

Get-VMHost | Where-Object {$_.ConnectionState -eq "Connected"} |
%{Get-View $_.ID} |
%{$esxname = $_.Name; Get-View $_.ConfigManager.NetworkSystem} |
%{ foreach($physnic in $_.NetworkInfo.Pnic){
    $pnicInfo = $_.QueryNetworkHint($physnic.Device)
    foreach($hint in $pnicInfo){
      Write-Host $esxname $physnic.Device
      if( $hint.ConnectedSwitchPort ) {
        $hint.ConnectedSwitchPort
      }
      else {
        Write-Host "No CDP information available."; Write-Host
      }
    }
  }
}

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