This read-create RowStatus value manages the lifecycle of an ACL rule, using active(1) to indicate an existing rule, createAndGo(4) to create a new rule instance, and destroy(6) to delete one. An admin uses it after populating a rule's match criteria and action to actually commit the rule, or to remove a rule no longer needed. For example, setting this to createAndGo(4) after configuring the source/destination and action fields activates that new filtering rule on the switch.