[RHEL8]开启BBR

# sysctl net.ipv4.tcp_congestion_control
net.ipv4.tcp_congestion_control = cubic
# sysctl net.ipv4.tcp_available_congestion_control
net.ipv4.tcp_available_congestion_control = reno cubic
# modprobe tcp_bbr # 开启tcp_bbr
# sysctl net.ipv4.tcp_available_congestion_control # 验证tcp_bbr
net.ipv4.tcp_available_congestion_control = reno cubic bbr
# echo "tcp_bbr" >> /etc/modules-load.d/bbr.conf # 添加开机启动
# cat /etc/modules-load.d/bbr.conf
tcp_bbr
# echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
# echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
# sysctl -p
net.core.default_qdisc = fq
net.ipv4.tcp_congestion_control = bbr
# sysctl net.ipv4.tcp_congestion_control
net.ipv4.tcp_congestion_control = bbr