Added a bit more logic into the script so systems with no IP or MAC can still be inserted into influx

plugins/telegraf_pfinterface.php

@@ -19,17 +19,28 @@ foreach ($iflist as $ifname => $friendly) {
         $realif = get_real_interface($ifname);
         $mac = get_interface_mac($realif);
 
+        if (!isset($ipaddr)){
+                $ipaddr = 'Unassigned'
+        }
+        if (!isset($mac)){
+                $mac = 'Unavailable'
+        }
         if (strtolower($ifstatus) == "up"){
                 $ifstatus = 1;
         }
+        if (strtolower($ifstatus) == "active"){
+                $ifstatus = 1;
+        }
         if (strtolower($ifstatus) == "no carrier"){
                 $ifstatus = 0;
         }
+        if (strtolower($ifstatus) == "down"){
+                $ifstatus = 0;
+        }
         if (!isset($ifstatus)){
-                $ifstatus = "Unknown";
+                $ifstatus = 2;
         }   
 
-        if (!empty($ipaddr)) {
         printf("interface,host=%s,name=%s,ip_address=%s,mac_address=%s,friendlyname=%s,source=%s status=%s\n",
                 $host,
                 $realif,
@@ -39,6 +50,5 @@ foreach ($iflist as $ifname => $friendly) {
                 $source,
                 $ifstatus
                 );
-        }
 }
 ?>