protocol to the application layer的用法和樣例：
例句
- The purpose of this layer is to define the application layer protocol for the exchange of cellular subscriber information between networks.
這一層的主要用途是為了定義在網路間交換蜂窩網路用戶信息的應用層協議。 - Unlike RIP OSPF uses IP directly, OSPF packets being identified by a special value in the IP datagram protocol field.
傳輸層協議提供計算機之間的通信會話，並確保數據在計算機之間可靠地傳輸。
