debian 系统机器开启BBR, 将 BBR 写入内核配置并保存生效
ssh执行
modprobe tcp_bbr
echo "tcp_bbr" >> /etc/modules-load.d/modules.conf
echo 3 > /proc/sys/net/ipv4/tcp_fastopen
echo "vm.swappiness = 10" >> /etc/sysctl.conf
echo "vm.vfs_cache_pressure = 50" >> /etc/sysctl.conf
echo "net.core.default_qdisc = fq_codel" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control = bbr" >> /etc/sysctl.conf
echo "net.ipv4.tcp_fastopen = 3" >> /etc/sysctl.conf
sysctl -p检查bbr生效情况
sysctl
net.ipv4.tcp_available_congestion_control
sysctl net.ipv4.tcp_congestion_control
lsmod | grep bbr
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