linux高版本4.9以上内核 开启BBR

echo 'net.core.default_qdisc=fq' > /etc/sysctl.d/10-bbr.conf
echo 'net.ipv4.tcp_congestion_control=bbr' > /etc/sysctl.d/10-bbr.conf
sysctl -p /etc/sysctl.d/10-bbr.conf

检查是否成功
[root@aa sysctl.d]# sysctl net.ipv4.tcp_congestion_control
net.ipv4.tcp_congestion_control = bbr

[root@aa sysctl.d]# lsmod | grep bbr
tcp_bbr 20480 1