/**
  * Show overview of devices and subnets
  *
  * @return array 'devices', 'subnets', 'subnetOrder'
  */
 public function indexAction()
 {
     $ordering = $this->getOrder('Name');
     $devices = array();
     foreach ($this->_deviceManager->getTypeCounts() as $description => $count) {
         $devices[] = array('Description' => $description, 'Count' => $count);
     }
     return array('devices' => $devices, 'subnets' => $this->_subnetManager->getSubnets($ordering['order'], $ordering['direction']), 'subnetOrder' => $ordering);
 }