CREATE TABLE IF NOT EXISTS `vlans_fdb` (  `device_id` int(11) NOT NULL,  `vlan_id` int(11) NOT NULL,  `port_id` int(11) NOT NULL,  `mac_address` varchar(32) CHARACTER SET latin1 NOT NULL,  `fdb_status` varchar(32) CHARACTER SET latin1 NOT NULL,  UNIQUE KEY `dev_vlan_mac` (`device_id`,`vlan_id`,`mac_address`),  KEY `device_id` (`device_id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;