occdn.limour.top/source/_posts/调小mtu来获得更稳定的网络.md

---

title: 调小MTU来获得更稳定的网络 tags: [] id: '2554' categories:

• - 运维 date: 2023-02-02 18:40:42 ---

电脑连某些WIFI总是不稳定，时不时断流，干脆调小MTU来保证长连接更稳定。

Win10

• ping -l 1372 -f www.baidu.com
• netsh interface ipv4 show subinterfaces
• netsh interface ipv4 set subinterface "WLAN" mtu=1400 store=persistent

Ubuntu

[Unit]
Description=Reset-mtu
After=network.target
[Service]
ExecStart=/usr/sbin/ifconfig ens33 mtu 1400
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure
[Install]
WantedBy=multi-user.target

• netstat -i
• ping -s 1372 -M do www.baidu.com
• sudo nano /etc/systemd/system/rmtu.service
• sudo systemctl enable rmtu && sudo systemctl start rmtu
• cat /sys/class/net/ens33/mtu