要求，内核版本4.9+
modprobe tcp_bbr
echo "tcp_bbr" >> /etc/modules-load.d/modules.conf
modprobe tcp_bbr
echo "tcp_bbr" >> /etc/modules-load.d/modules.conf
modprobe tcp_bbr echo "tcp_bbr" >> /etc/modules-load.d/modules.conf
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
sysctl -p
sysctl -p
sysctl -p
检查是否生效
sysctl net.ipv4.tcp_available_congestion_control
sysctl net.ipv4.tcp_congestion_control
sysctl net.ipv4.tcp_available_congestion_control
sysctl net.ipv4.tcp_congestion_control
sysctl net.ipv4.tcp_available_congestion_control sysctl net.ipv4.tcp_congestion_control
如果都输出了bbr，就是生效了。