$totalnets = 0
$upnets = 0
$nets = (Get-ClusterNetwork -ErrorAction SilentlyContinue)

if($nets -eq $null) {
  return -1
} else {
  $totalnets = $nets.Count
  foreach ($net in $nets) {
    if ($net.State -eq "Up") {
      $upnets++
    }
  }
  return $totalnets - $upnets
}