+int ngadmin_setVLANType (struct ngadmin *nga, int t);
+
+
+/**
+ * Get the ports VLANs in port mode.
+ * Retrieves the associated VLAN of ports in port mode.
+ * @note The switch should be in port mode.
+ * @note You must be logged on a switch.
+ * @param nga A pointer to the ngadmin structure.
+ * @param ports A pointer to an array of integers which will receive the
+ number of associated VLAN. Must not be NULL.
+ * @return ERR_OK when everything is well or an error code otherwise.
+ **/
+int ngadmin_getVLANPortConf (struct ngadmin *nga, unsigned char *ports);
+
+
+/**
+ * Set the ports VLAN in port mode.
+ * Changes the associated VLAN of ports in port mode.
+ * @note The switch should be in port mode.
+ * @note You must be logged on a switch.
+ * @param nga A pointer to the ngadmin structure.
+ * @param ports A pointer to an array of integers which contain the
+ number of associated VLAN. Must not be NULL.
+ * @return ERR_OK when everything is well or an error code otherwise.
+ **/
+int ngadmin_setVLANPortConf (struct ngadmin *nga, const unsigned char *ports);