Ubuntu 20.04开启BBR

echo net.core.default_qdisc=fq >> /etc/sysctl.conf
echo net.ipv4.tcp_congestion_control=bbr >> /etc/sysctl.conf

sysctl -p

sysctl net.ipv4.tcp_available_congestion_control

lsmod | grep bbr

sysctl net.ipv4.tcp_available_congestion_control
# net.ipv4.tcp_available_congestion_control = bbr cubic reno