Hi,

if CDP is enabled the networkswitches gives some informations to the ESXi Hosts physical network adapters.

Here are the steps to retrive these by PowerCli.

PS D:\> $oVMHost = Get-VMHost -Name myESXiHost.myDomain.org

Get the networkview of the host

PS D:\> $oViewNetSystem = Get-View $oVMHost.ExtensionData.ConfigManager.NetworkSystem

Query the infos for each (physical) LAN adapter on a host. Show only if data are available

PS D:\> Get-VMHostNetworkAdapter -VMhost  $oVMHost -Physical | % { 
    $CDPData=$oViewNetSystem.QueryNetworkHint($_.Name) 
    if($CDPData.ConnectedSwitchPort)
    {
         write-host  -ForegroundColor Green ("Host: {0} CDP Data for {1}" -f $oVMHost.Name, $_.Name )
         $CDPData.ConnectedSwitchPort | fl *
         $CDPData.ConnectedSwitchPort.DeviceCapability | fl *
    }
}

Michael