No other formalities may be required for the declaration of priority at the time of filing the application. 对提出申请时要求优先权的声明不得规定其他的手续。
Moreover, multiple ODL sets usually are needed to realize multiple priority queues in order to support QoS. 更甚者,为了能够依照不同优先权的封包提供服务品质保证,往往需要数组的光延于线来实现与确保服务品质。