shù / jù / liàn / lù / céng / fù / zé / zài / xiāng / lín / jié / diǎn / zhī / jiān / chuán / shū / shù / jù / zhēn

数据链路层负责在相邻节点之间传输数据帧。

The data link layer is responsible for transmitting data frames between adjacent nodes.