通过网关测试mtu值 ping -f -l 1424 112.21.197.81 计算mtu值为1424+28=1452 查看网卡mtu值 netsh interface ipv4 show subinterfaces 修改mtu值-windows netsh interface ipv4 set subinterface 以太网 mtu=1452 store=persistent 修改mtu值-linux ifconfig eth0 mtu 1452
