请问全双工 半双工还是单工是 osi 中的哪一层决定的？ - V2EX
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zhoujianqingz
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请问全双工 半双工还是单工是 osi 中的哪一层决定的？

  •   
  •   zhoujianqingz Jun 12, 2024 2586 views
    This topic created in 699 days ago, the information mentioned may be changed or developed.
  • osi
  • 物理层
  • 双工
    7 replies    2024-06-13 03:18:10 +08:00
    yyzh
        1
    yyzh  
       Jun 12, 2024 via Android   1
    1
    zhoujianqingz
        2
    zhoujianqingz  
    OP
       Jun 12, 2024 via iPhone
    @yyzh 物理层吗？我也这么觉得，但是答案不是
    IvanLi127
        4
    IvanLi127 &nbp;
       Jun 12, 2024
    话说答案是啥？ 下层不支持全双工的话，上层咋支持，尤其是下层只能单工时，咋双得起来？我感觉得是物理层。难道这个通信模式是特定层的概念？
    LeoJ
        5
    LeoJ  
       Jun 12, 2024
    双工协商是二层啊 链路层
    bao3
        6
    bao3  
       Jun 13, 2024
    PHY 决定的
    om2mo
        7
    om2mo  
       Jun 13, 2024
    是以太网协议决定的不是 tcp/ip 协议
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