interface entry的用法和樣例：
例句
- The input and output chains handle the processing rules for incoming and outgoing packets to an interface, respectively.
輸入和輸出鏈分別處理對應於進入和流出介面的包的執行策略。 - This mark can even be dependent on the ingress interface so that higher differentiability can be achieved.
甚至能在進入介面上依賴這個標記以實現更高的可辨性。
