This read-create Integer32 in the range 1 to 65535 is an arbitrary index that uniquely identifies a row in the traffic ACL profile table, with the description explicitly noting the manager should not assume any semantic meaning to the value beyond row identification. Administrators use it as the key when creating, referencing, or deleting a specific ACL rule entry. For example, a script provisioning ten sequential filtering rules for a port would allocate index values 1 through 10, one per rule, without those numbers implying rule priority.