本文转载自https://www.jiribrejcha.net/2024/05/direct-20-gbps-connection-between-mac-and-windows-machine-with-no-ethernet-adapters/更改mac和windows的MTU为9000windows可用以下代码netsh interface ip show subinterface netsh interface ip set subinterface "Ethernet 4" mtu=9000 store=persistent 可重复代码一查看是否更改成功之后，在mac的设置-通用-文件共享中进行下一步的设置