# 修改系统变量
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf

sysctl -p   # 保存生效
sysctl net.ipv4.tcp_available_congestion_control    # 查看内核是否已开启 BBR
lsmod | grep bbr    #查看 BBR 是否启动

#help
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