Update mactrack_cisco.php

Add ifType's description

Author: xxconn

lib/mactrack_cisco.php

@@ -505,6 +505,10 @@ function get_IOS_dot1dTpFdbEntry_ports($site, &$device, $lowPort = 0, $highPort
 						$portTrunkStatus = (isset($ifInterfaces[$ifIndex]['trunkPortState']) ? $ifInterfaces[$ifIndex]['trunkPortState'] : '');
 
 						/* only output legitimate end user ports */
+						/* ifType:	6   = ethernetCsmacd
+									53  = propVirtual
+									161 = ieee8023adLag
+						*/
 						if ($ifType == 6 || $ifType == 53 || $ifType == 161) {
 							if (($portTrunkStatus == '2') ||
 								(empty($portTrunkStatus)) ||