ALTER TABLE `ports` CHANGE `ifVlan` `ifVlan` VARCHAR( 16 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NULL DEFAULT NULL; ALTER TABLE `ports` CHANGE `ifTrunk` `ifTrunk` VARCHAR( 8 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NULL DEFAULT NULL; ALTER TABLE `ports` CHANGE `ifVrf` `ifVrf` INT( 16 ) NULL DEFAULT NULL;