N1开启BBR echo net.core.default_qdisc=fq >> /etc/sysctl.conf echo net.ipv4.tcp_congestion_control=bbr >> /etc/sysctl.conf sysctl -p检查是否成功sysctl net.ipv4.tcp_available_congestion_control会显示net.ipv4.tcp_available_congestion_control = bbr cubic reno或执行lsmod | grep bbr出现tcp_bbr 20480 26